Heat pump type heat exchanging unit

Evaporating device with function of automatic liquid level stabilization

The invention relates to an evaporating device with a function of automatic liquid level stabilization. The evaporating device comprises a heat transfer tube bundle, an evaporator, a coolant pump and a coolant spray pipe. The top of the evaporator is provided with a coolant water inlet and a coolant steam outlet. The bottom of the evaporator is connected to the incoming end of the coolant pump through an inlet of the coolant pump, and the outlet end of the evaporator is connected with the coolant spray pipe. A spray nozzle of the coolant spray pipe is disposed in the evaporator above the heat transfer tube bundle. The heat transfer tube bundle is disposed above the level of coolant water in the evaporator. The coolant water inlet and the coolant steam outlet are arranged in the cavity wall of the evaporator. The evaporating device is characterized in that a coolant water tank is arranged above the evaporator, a pressure equalizer pipe is connected between an upper cavity of the coolant ...

Multistage-cascaded compression type heat pump set under large temperature difference

Absorption heat pump evaporator structure for recovering low-pressure vapor residual heat

The invention discloses an absorption heat pump evaporator structure for recovering low-pressure vapor residual heat, belonging to the field of heating, ventilation and air conditioning. Because the volume flow rate of the low-pressure vapor is very high, resistance generated in the flowing process is increased correspondingly, a larger circulation sectional area is required for recovering the low-pressure vapor residual heat; according to the invention, the heat exchange tube bundle in the evaporator is arranged in the direction of width of a machine set or in the direction of height vertically, the sectional area of a low-pressure evapor flow channel is increased to ensure the smooth flow of the low-pressure evapor; the low-pressure vapor as a low-temperatue heat source is subjected to heat releasing and condensing in the heat-exchange tube bundle and is exhausted; refrigerant water is sprayed above the heat exchange tube bundle, evaporates after absorbing the condensing heat of the low-pressure ...

Multistage absorption refrigerating/heat pump unit

The invention discloses a multistage absorption refrigerating/heat pump unit, consisting of two or more single-stage generating-condensation units and two or more single-stage absorption-evaporation units, a solution heat exchanger, a throttling device, a meter, a valve and a connection pipeline. The single-stage generating-condensation unit consists of a heat insulating generator and a regular condenser, the single-stage absorption-evaporation unit consists of a heat insulating absorber and an evaporator, the single-stage generating-condensation units are serially connected, and the single-stage absorption-evaporation units are serially connected. A refrigerating working medium diluted solution is gradually heated and flash-evaporated in each heat insulating generator, the flash-evaporated concentrated solution is gradually cooled to absorb refrigerant steam in each heat insulating absorber to become the diluted solution, and refrigerant solution is gradually throttled, decompressed and ...

Steam exhaust waste heat recovery unit

The invention discloses a steam exhaust waste heat recovery unit, belonging to the field of heating, ventilating and air conditioning. The steam exhaust waste heat recovery unit consists of an absorption heat pump and a condenser. Input steam exhaust enters into the condenser and the evaporator of the absorption heat pump simultaneously, hot water sequentially passes through the condenser and the absorber and condenser of the absorption heat pump to be heated step by step, the steam exhaust and the hot water in the condenser exchange heat, the hot water is heated, the heated hot water flows into the absorption heat pump, a high temperature heat source is taken as a driving energy source to absorb the heat in the steam exhaust, the steam exhaust releases heat and is condensed into condensed water, and the condensed water flows out the unit and is recovered by a condensed water recovery system by virtue of a return water pipe. By utilizing the steam exhaust waste heat recovery unit disclosed ...

Compact type absorption heat pump apparatus capable of increasing residual heat temperature greatly

The invention discloses an absorption heat pump device which can greatly enhance the temperature of waste heat and compact volume and belongs to the heating, daily hot-water supply device field. A unit of the heat pump comprises a generator, a condenser, a high-pressure absorber, an evaporation-absorption device, a low-pressure evaporator, a first-class solution heat-exchanger, a second-class solution heat-exchanger, a throttle device, a solution pump, a coolant pump and various connecting pipes and accessories. The invention adopts a means of two-level evaporation and two-level absorption, and the low-pressure evaporator absorbs heat energy from a low temperature heat source and the heat generated in a low-pressure absorber is adopted as the heat source of the high-pressure evaporator; the heat generated in the high-pressure absorber and the condenser is used for heating hot water to obtain the high-temperature hot water; the low-pressure absorber is combined with the high-pressure evaporator ...

Integral type absorption type heat exchange machine unit

The invention relates to an integrated absorption heat-exchanging unit, belonging to the field of the heating and hot water supply devices and comprising a hot-water absorption heat-exchanger and a normal water-water heat exchanger which are combined, wherein, the hot-water absorption heat-exchanger adopts the means of two-level evaporation and two-level absorption. The unit comprises a generator, a condenser, a low-pressure absorber, a high-pressure absorber, a low-pressure evaporator, a high-pressure evaporator, a solution heat exchanger, a throttle device, a solution pump, a water-water heat exchanger and various connecting pipes and accessories. The invention can effectively reduce the backwater temperature of a first-time network of a collective heating system, thus greatly raising the temperature difference of between hot water supply and backwater of the first-time network, further greatly reducing the initial investment to the pipeline system and the power cost of the pump running ...

Integral type absorption type heat exchange machine unit

The invention relates to an integrated absorption heat-exchanging unit, belonging to the field of the heating and hot water supply devices and comprising a hot-water absorption heat-exchanger and a normal water-water heat exchanger which are combined, wherein, the hot-water absorption heat-exchanger adopts the means of two-level evaporation and two-level absorption. The unit comprises a generator, a condenser, a low-pressure absorber, a high-pressure absorber, a low-pressure evaporator, a high-pressure evaporator, a solution heat exchanger, a throttle device, a solution pump, a water-water heat exchanger and various connecting pipes and accessories. The invention can effectively reduce the backwater temperature of a first-time network of a collective heating system, thus greatly raising the temperature difference of between hot water supply and backwater of the first-time network, further greatly reducing the initial investment to the pipeline system and the power cost of the pump running ...

Multi-stage generation absorption heat pump and refrigerating machine set

The invention discloses a multi-stage generation absorption heat pump and a refrigerating machine set, belonging to the field of heating ventilation air conditioners. The refrigerating machine set isformed by connecting at least two-stage generators, at least two-stage condensers, an absorber, an evaporator, a solution heat exchanger, a throttling device, a solution pump and a coolant pump through various connecting pipelines. The invention adopts the technical scheme as follows: a multi-stage generation mode and a multi-stage condensation mode are adopted. The advantages are mainly embodiedas follows: higher temperature hot/cooling water can be generated, and heating can be performed by using a lower temperature heat source or simultaneously using heat sources with different qualities.

Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way

The invention discloses a method for recovering the waste heat of a thermal power plant and heating and supplying heat to hot water in a stepping way. In the method, low-temperature heat-net return water is firstly mixed with circulating cooling water positioned on an outlet of a cooling condenser or exchanges heat with the circulating cooling water positioned on the outlet of the cooling condenser to be increased in temperature and then sequentially delivered into an each-step vapour absorption type heat pump and a vapor-water heat exchanger in a series connection way to be gradually heated to be increased in temperature to heat supplying temperature and finally discharged through a water supplying pipeline; the circulating cooling water absorbs the waste steam condensation heat of a steam turbine in the cooling condenser, then one path of the circulating cooling water is directly mixed with the low-temperature heat-net return water or heats the low-temperature heat-net return water through ...

High-efficiency compact high-temperature absorption type heat pump unit

The invention discloses a high-efficiency compact high-temperature absorption type heat pump unit, and belongs to the technical field of heat pump devices, which consists of a generator, a condenser, a high-pressure absorber, a high-pressure flash tank, a low-pressure absorber, a low-pressure evaporator, a solution heat exchanger, a throttling device, a solution pump, a coolant pump and various types of connecting pipeline accessories. By adopting a method of two-stage evaporation and two-stage absorption and directly heating coolant water, which is evaporated from the high-pressure flash tank under high pressure, by using heat generated in the low-pressure absorber, the absorption type heat pump unit can recover low-temperature remaining heat to generate high-temperature hot water, and has higher energy source utilization ratio and a more compact structure. The low-pressure evaporator absorbs heat from a low-temperature heat source, the coolant water evaporated under high pressure is heated ...

Method for reappearing user configuration surroundings on computer by mobile memory device

The invention relates to a method which utilizes a mobile memory device for recurrence of user configuration environment on a computer, wherein, configuration information related to user individuation configuration environment can be extracted and stored on the mobile memory device, and operation of the configuration information is redirected to the mobile memory device on a target computer, thereby the user individuation configuration environment is recurred. The technical proposal of the invention is that: system configuration information and environment variables are stored on the mobile memory device; moreover, resource access is intercepted and captured during the operating process through a system call package technology and redirected to the mobile memory device, and the user individuation configuration environment is recurred under the precondition that performance and reliability are almost not affected. The invention is compatible with existing window application software, and ...

Method for reducing return water temperature of heat supply pipeline

The invention discloses a method for reducing return water temperature of a heat supply pipeline, which belongs to the technical field of energy. A waterway system of the heat supply pipeline is divided into a primary network hot water pipeline and a secondary network hot water pipeline, and the return water temperature of a primary network of the heat supply pipeline of a centralized heat supply system is reduced with the help of an absorption heat pump/refrigerator and a water-water heat exchanger or the single absorption heat pump/refrigerator, thereby increasing the temperature difference between supply water and return water of the primary network, wherein, when the single absorption heat pump/refrigerator is used, the primary network hot water pipeline and the secondary network hot water pipeline are connected by adopting the direct connection way, when the absorption heat pump/refrigerator and the water-water heat exchanger are used, the primary network hot water pipeline and the ...

Large temperature-difference central heating system

The invention relates to a central heating system with large temperature difference, which belongs to the energy field. The system comprises a steam turbine, a condenser, a steam absorption heat pump, a steam-water heat exchanger, a hot water absorption heat pump, a water-water heat exchanger as well as a connecting pipe and accessories. The invention is characterized in that the temperature difference of the heat net supply is large, and is about one time higher than the conventional heat net operation, thus the transmission capacity of the heat net is greatly increased, and at the same time, no heat preservation and thermal stress compensation problems exist as the backwater temperature of the heating is low, thereby reducing the investment of the backwater pipeline network and the whole pipeline network; the steam turbine is utilized to discharge steam and preheat the backwater of the large heat net, and circulating cooling water is utilized to be taken as the low level heat energy of ...

Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way

The invention discloses a method for recovering the waste heat of a thermal power plant and heating and supplying heat to hot water in a stepping way. In the method, low-temperature heat-net return water is firstly mixed with circulating cooling water positioned on an outlet of a cooling condenser or exchanges heat with the circulating cooling water positioned on the outlet of the cooling condenser to be increased in temperature and then sequentially delivered into an each-step vapour absorption type heat pump and a vapor-water heat exchanger in a series connection way to be gradually heated to be increased in temperature to heat supplying temperature and finally discharged through a water supplying pipeline; the circulating cooling water absorbs the waste steam condensation heat of a steam turbine in the cooling condenser, then one path of the circulating cooling water is directly mixed with the low-temperature heat-net return water or heats the low-temperature heat-net return water through ...

Multistage absorption refrigerating/heat pump unit

The invention discloses a multistage absorption refrigerating/heat pump unit, consisting of two or more single-stage generating-condensation units and two or more single-stage absorption-evaporation units, a solution heat exchanger, a throttling device, a meter, a valve and a connection pipeline. The single-stage generating-condensation unit consists of a heat insulating generator and a regular condenser, the single-stage absorption-evaporation unit consists of a heat insulating absorber and an evaporator, the single-stage generating-condensation units are serially connected, and the single-stage absorption-evaporation units are serially connected. A refrigerating working medium diluted solution is gradually heated and flash-evaporated in each heat insulating generator, the flash-evaporated concentrated solution is gradually cooled to absorb refrigerant steam in each heat insulating absorber to become the diluted solution, and refrigerant solution is gradually throttled, decompressed and ...

Electric peaking combined heat and power (CHP) waste heat recovery device and operating method thereof

The invention relates to an electric peaking combined heat and power (CHP) waste heat recovery device and an operating method thereof. The device comprises an inner power plant portion and a heat exchange station portion, wherein the inner power plant portion comprises a heat exchanger, a waste heat recovery electric heat pump, an energy-storing electric heat pump, high/low temperature water storing tanks, a heating network heater, a valve and a circulating water pump; the heat exchange station portion mainly comprises high/low temperature water storing tanks, an electric heat pump, a heat exchanger, a valve and a circulating water pump; as for the operating method of the device, the device can operate in periods of an electrical load trough, an electrical load flat peak and an electrical load peak respectively through combination of different valve switches, the high temperature water storing tank is used for balancing the difference between system heat supply amount and heating load, ...

Method for reducing return water temperature of heat supply pipeline

The invention discloses a method for reducing return water temperature of a heat supply pipeline, which belongs to the technical field of energy. A waterway system of the heat supply pipeline is divided into a primary network hot water pipeline and a secondary network hot water pipeline, and the return water temperature of a primary network of the heat supply pipeline of a centralized heat supplysystem is reduced with the help of an absorption heat pump/refrigerator and a water-water heat exchanger or the single absorption heat pump/refrigerator, thereby increasing the temperature differencebetween supply water and return water of the primary network, wherein, when the single absorption heat pump/refrigerator is used, the primary network hot water pipeline and the secondary network hot water pipeline are connected by adopting the direct connection way, when the absorption heat pump/refrigerator and the water-water heat exchanger are used, the primary network hot water pipeline and the second ...

Great temperature rising absorption type heat pump units

The invention relates to a large temperature rise absorption heat pump assembly capable of greatly improving the temperature of waste heat. The invention adopts the technical proposal of two-stage evaporation and two-stage absorption. The large temperature rise absorption heat pump assembly mainly comprises a generator, a condenser, a primary evaporator, a secondary evaporator, a primary absorber, a secondary absorber, a primary solution heat exchanger and a secondary solution heat exchanger. The invention is characterized in that: heat generated by the primary absorber is used as a heat source of the secondary evaporator, and the primary evaporator absorbs low-temperature waste heat from the heat source; and heat generated by the secondary absorber and the condenser is used for heat supply. The large temperature rise absorption heat pump assembly has the advantages of capability of absorbing the waste heat of low-temperature heat sources and capability of obtaining high-temperature heat ...

Compact type absorption heat pump apparatus capable of increasing residual heat temperature greatly

The invention discloses an absorption heat pump device which can greatly enhance the temperature of waste heat and compact volume and belongs to the heating, daily hot-water supply device field. A unit of the heat pump comprises a generator, a condenser, a high-pressure absorber, an evaporation-absorption device, a low-pressure evaporator, a first-class solution heat-exchanger, a second-class solution heat-exchanger, a throttle device, a solution pump, a coolant pump and various connecting pipes and accessories. The invention adopts a means of two-level evaporation and two-level absorption, and the low-pressure evaporator absorbs heat energy from a low temperature heat source and the heat generated in a low-pressure absorber is adopted as the heat source of the high-pressure evaporator; the heat generated in the high-pressure absorber and the condenser is used for heating hot water to obtain the high-temperature hot water; the low-pressure absorber is combined with the high-pressure evaporator ...

Multistage-cascaded compression type heat pump set under large temperature difference

This invention relates to a multi-stage serial large temperature-difference compression thermal pump set composed of multiple stages of condensers, evaporators, a compressor and a related throttle device and connection pipelines, in which the waterway systems of the condensers of each stage and evaporators are serial to form a connected in-out system of waterway, pipelines of cold-producing medium of the adjacent condensers are serial by the throttle device, the condenser of the last stage is connected with the evaporator of the first stage by the compressor to form a channel of cold-producing medium.

Heat pump type heat exchanging unit

The invention relates to a heat pump type heat exchange units, which belongs to the technical field of energy. The units are composed of hot water type absorption heat pump units, a water-water heat exchanger, various connecting pipelines and accessories, wherein a water flow system of the connecting pipelines is divided into a primary side pipeline and a secondary side pipeline, the primary side pipeline employs a manner of a step sequence series connection, hot water of the primary side pipeline sequentially passes through a generator of an absorption heat pump, the water-water heat exchanger and an evaporator of the absorption heat pump, hot water of the secondary side pipeline passes through an absorption device and a condenser of the absorption heat pump and the water-water heat exchanger, because the primary side pipeline of the heat exchange units sequentially passes through the generator of the absorption heat pump, the water-water heat exchanger and the evaporator of the absorption ...

Electric power peak-shaving and combined heat and power waste heat recovery device and operation method thereof

An inner power plant portion and a heat exchange station portion. The inner power plant portion includes a heat exchanger, a waste heat recovery electric heat pump, an energy-storing electric heat pump, high/low temperature water storing tanks, a heating network heater, a valve and a circulating water pump; the heat exchange station portion includes high/low temperature water storing tanks, an electric heat pump, a heat exchanger, a valve and a circulating water pump; as for the operating method of the device, the device can operate in periods of an electrical load trough, an electrical load flat and an electrical load peak respectively through combination of different valve switches, the high temperature water storing tank is used for balancing the difference between system heat supply amount and heating load, the low temperature water storing tank is used for stabilizing steam exhaust waste heat recovery amount.

Large temperature-difference central heating system

Multi-stage generation absorption heat pump and refrigerating machine set

The invention discloses a multi-stage generation absorption heat pump and a refrigerating machine set, belonging to the field of heating ventilation air conditioners. The refrigerating machine set is formed by connecting at least two-stage generators, at least two-stage condensers, an absorber, an evaporator, a solution heat exchanger, a throttling device, a solution pump and a coolant pump through various connecting pipelines. The invention adopts the technical scheme as follows: a multi-stage generation mode and a multi-stage condensation mode are adopted. The advantages are mainly embodiedas follows: higher temperature hot/cooling water can be generated, and heating can be performed by using a lower temperature heat source or simultaneously using heat sources with different qualities.

Method for reappearing user configuration surroundings on computer by mobile memory device

The invention relates to a method which utilizes a mobile memory device for recurrence of user configuration environment on a computer, wherein, configuration information related to user individuation configuration environment can be extracted and stored on the mobile memory device, and operation of the configuration information is redirected to the mobile memory device on a target computer, thereby the user individuation configuration environment is recurred. The technical proposal of the invention is that: system configuration information and environment variables are stored on the mobile memory device; moreover, resource access is intercepted and captured during the operating process through a system call package technology and redirected to the mobile memory device, and the user individuation configuration environment is recurred under the precondition that performance and reliability are almost not affected. The invention is compatible with existing window application software, and ...