Dry-type phase-change thermal storage floor heating terminal device
Technical Field The invention relates to a building heating technology, in particular to a structural design of the energy storage type heating floor. Background Art Floor heating is that, in recent years, the development of a novel the heating mode, by using the ground radiation. It even heating, person can feel the heating radiation and convection the double effect, comparison radiator is more comfortable, and the occupying space is saved. Floor heating the temperature of the 40-50 [...] required can be achieved by the comfort of the human body, the floor heating only a relatively low-grade heat source, is very suitable for the solar thermal collector the hot water as a heat source. Winter using solar energy to provide the hot water as a heat source heating can greatly save the consumption of fossil energy, the existence of energy discontinuously, the problem of discontinuity, the use of storage water tank, large size, high cost, and is very unwieldy. Furthermore, the power supply network exists in our country the problem of large peak-to-valley difference, part of the peak electric policy areas at night, so the floor heating can also be used at night the use of off-peak electric heat as a heat source such as electrical heating film or heat pump. Chinese invention Patent (Patent number: 200410009093.0) "a phase change energy storage floor air conditioning heating method and apparatus" uses a phase change material and heat pump combination, the use of heat pump or refrigerator in order to solve the problem of the excessive peak-valley load of the network, sub-entry, the area of electricity, save electricity. However, this method can not be the heating rate with the heating heat load adjustment; one of the phase-change material is heating heat to the exothermic process, the phase-change material utilization rate is not very high; floor downward heat leakage problem is serious, and the like. Content of the invention The purpose of this invention is to provide a dry-type phase-change heat-storage floor heating terminal device, with storage at the same time the ability to intermittently heat source and a floor heating comfort can be adjusted and the characteristics of the function of the heating rate, is reduced and heat leakage downward heating of the traditional floor, the effect of improving the utilization rate of the phase change material. The purpose of this invention is realized as follows: A dry-type phase-change heat-storage floor heating terminal device, characterized in that the device includes a floor layer sequentially from top to bottom, the phase-change material layer, air channel, radiation-proof film, an insulating layer and floor substrate; the floor between the decorative layer and the floor base layer is provided with a keel, between adjacent keel of the phase-change material layer is embedded in at least one heating pipe or an electric heating film; in the two ends of the air channel provided with an air outlet connected with the indoor air. The outer surface of the hot water supply pipe is provided with a horizontal heat conducting fin. The phase-change material layer is divided into two layers, only in the upper layer or the lower layer is provided with only the groove of the buried pipe, or in the upper, and lower layers are both provided with the groove of the buried pipe. The adjacent keel of the phase change material layer between the decorative layer in close contact with the floor or reserved air layer between. The phase change material layer of the phase-change material in the shaping phase-change material, or encapsulated phase change material; the phase change temperature of the phase-change material 20-50 the between [...]. The air channel is provided with air outlet at the two ends of an adjustable air door or fan. The keel is "convex" shape. Compared with the prior art, the present invention, the effect has the following advantages and accomplish: a dry phase-change heat-storage floor heating terminal device, not only with heating the comfort degree is high, the space is saved, reducing the bulk weight of the building, and the like, also for solar energy intermittently by using and solve problems such as peak-to-valley power supply system provides an effective path. The size of through the air heating rate or fan speed control, solves the problem that the traditional phase change floor the problem of difficult to adjust the heating rate, the phase change material through the upward heat conduction and convection current heat exchange with the indoor air at the same time, the air channel can be downward of the air flowing in the heat convection, the two-way heat utilization of the phase-change material, the air below the phase-change material, the phase change material increases the thermal resistance of the base layer of the floor, the floor down the thermal leakage is greatly reduced. Description of drawings Figure 1 is a structure diagram of the present invention provides a dry phase-change heat-storage floor heating terminal device. Figure 2 is a schematic diagram of heat exchange floor at night. Figure 3 to day floor heat exchange a schematic diagram. In the Figure: 1-floor decorative layer; 2.-phase-change material layer; 3.-air passage; 4-radiation-proof film; 5-insulating layer; 6-floor substrate; 7-keel ; 8-heating water pipe; 9-the damper. Mode of execution The invention relates to a dry-type phase-change heat-storage floor heating terminal device, as shown in Figure 1, combined with photo detailed description below are as follows: Floor decorative layer 1 by the keel 7 supporting, floor decorative layer 1 in sequence from top to bottom below the phase-change material layer 2, the air channel 3, radiation protection film 4, an insulating layer 5 and floor substrate 6. In one set of adjacent keel 7 the phase change material layer between 2 in, contain at least one hot water supply pipe 8, or an electric heating film. Adjacent keel phase change material layer between the decorative layer and the floor between the air layer can be closely contacted or reservation. The phase-change material should completely covers the hot water supply pipe 8 the outer wall of, the lower surface or the electric heating film. Phase change material is divided into upper and lower two layers of, if it is the heating pipe 8, only in the upper layer or the lower layer preformed with only the groove of the pipe, or upper and lower two layers the groove of the pipe are reserved, in the hot water supply pipe and 8 horizontal heat conducting fin added, in order to increase the heat supply water pipe 8 and the phase-change material of the heat exchange area between the; if the electric heating film, phase-change material as the flat surface of the upper layer and the lower layer. Its phase-change material layer 2 the phase change material can be in the shape of the phase-change material, can also be made of metal or plastic encapsulated phase change material, the phase change temperature in the 20-50 between [...]. Air channel 3 is provided with the two ends of the air outlet is communicated with the indoor air, and is equipped with adjustable air door 9 or mounting the fan. If use the adjustable door 9 when adjusting the heating rate, the air channel can be changed by changing height and the size of the air outlet, the maximum the air change; sinking should be of the air inlet baffle, to prevent back flow of air. Aluminum foil or other high reflectivity material as the radiation-proof film, made of heat insulating material for heat-insulating layer. Keel 7 of a wheelchair, engineering plastic or other low heat conducting coefficient and higher strength is made of a material, reduce the heat bridge effect of heat-leakage. the keel assumes "convex" shape. Working principle of this invention and process: The energy storage time period, starting heating apparatus, the heating water pipe 8 (or an electric heating film) heated phase-change material layer 2 of phase change material, the temperature rise when the phase-change material when the phase change temperature, the phase change material begins to phase change occurs. When the phase-change material is completely melted, heating device to stop heating. At this time heat is mainly composed of a phase change material is stored in a memory storage. In the non-energy storage time period can be without opening the heating device, the heating water pipe 8 (or an electric heating film) not heated phase-change material layer 2, gradually by the phase-change material solidification, and emit heat at the same time. Relatively high temperature phase change material layer 2 upward heat conducting heating floor decorative layer 1 provides the foundation for heating for the indoor heating, at the same time heated phase-change material layer 2 the air channel 3 in the air. The user can by adjusting the door 9 or the opening size of the fan speed regulating air channel 3 the rate of ventilation with the indoor air, thereby adjusting the heating rate. The two-way phase change material the heat utilization of the phase-change material. Radiation-proof film 4 can reduce the phase change material layer 2 to the insulating layer 5 of the radiation heat, at the same time, because the heat source, air passage 3 through the air convection in the insulating layer 5 of heat exchange is also very small, so the insulation layer to below floor stratum the leakage of heat is greatly reduced. The invention provides a phase-changing heat accumulation floor heating terminal device pertaining to building heating technique field. The invention employs phase-changing material as heat storage medium for heating. The device, from above to below, includes a floor decoration layer, a phase-changing material layer, an air duct, a radiation protection film, a thermal insulation layer and a floor base layer in turn; keels are arranged between the floor decoration layer and the floor base layer, at least a heat supply waterpipe or a electrical heating film are buried in the phase-changing material layer between adjacent keels; a wind gap is arranged at both ends of the air duct to communicate with indoor air. The phase-changing material supplies heat for indoor heating by heat conduction upwards and convection current, meanwhile heat supply of the phase-changing material is adjusted by air duct and indoor aeration speed, which further regulates and controls heat supply speed. The invention resolves defects of discommodity of heat supply speed adjustment of phase-changing floor energy storage mode, finity of phase-changing material availability, and the invention effectively decreases thermal transmission damage of floor heating downwards. 1. A dry-type phase-change heat-storage floor heating terminal device, characterized in that the device includes a floor layer sequentially from top to bottom (1), phase-change material layer, air channel, radiation-proof film, an insulating layer and floor substrate; the floor between the decorative layer and the floor base layer is provided with a keel (7), between the adjacent keel in the phase change material layer buried with at least one heating pipe or an electric heating film; in the two ends of the air channel provided with an air outlet connected with the indoor air. 2. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 1, characterized in that the outer surface of the hot water supply pipe is provided with a horizontal heat conducting fin. 3. In accordance with claim 1 or 2 wherein the a dry phase-change heat-storage floor heating terminal device, characterized in that said phase change material layer is divided into two layers, only in the upper layer or the lower layer is provided with only the groove of the buried pipe, or in the upper, and lower layers are both provided with the groove of the buried pipe. 4. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 1, characterized in that adjacent keel phase change material layer between the decorative layer in close contact with the floor or reserved air layer between. 5. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 1, characterized in that the phase change material layer of the phase-change material in the shaping phase-change material, or encapsulated phase change material. 6. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 5, characterized in that the phase change temperature of the phase-change material 20-50 the between [...]. 7. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 1, characterized in that the two ends of the air passage of the air outlet is provided with an adjustable air door or fan. 8. In accordance with a dry-type phase-change heat-storage floor heating terminal device according to Claim 1, characterized in that the keel is "convex" shape.