CN108413468A - Solar energy and rib-type pulsating heat pipe phase-changing energy-storing coupled system - Google Patents

Abstract

The present invention relates to solar energy and rib-type pulsating heat pipe phase-changing energy-storing coupled system, it includes superconducting solar thermal collector, heat storage water tank, multigroup pulsating heat pipe phase-change energy storage floor, superconducting solar thermal collector, heat storage water tank, diversion box is sequentially connected by back with water inlet line, solar energy circulating pump is set in the back with water inlet line between superconducting solar thermal collector and heat storage water tank, floor circulating pump is set in the back with water inlet line between heat storage water tank and diversion box, diversion box is separately connected the water inlet of multigroup pulsating heat pipe phase-change energy storage floor, the water outlet of multigroup pulsating heat pipe phase-change energy storage floor is connected to header tank, header tank, heat storage water tank, superconducting solar thermal collector is sequentially connected by return piping；Superconducting solar thermal collector, heat storage water tank are respectively arranged with temperature sensor on diversion box, and each temperature sensor is connect with controller respectively.Present invention improves the thermal inertias of traditional heating end equipment, improve solar energy heating efficiency.

Description

Solar energy and finned pulsating heat pipe phase change energy storage coupling system

technical field

The invention relates to a heating device, in particular to a solar energy and finned pulsating heat pipe phase change energy storage coupling system.

Background technique

Cold regions are rich in solar energy resources, and the solar irradiance is strong, and the end of the solar heating system mostly uses traditional radiators (radiators) to dissipate heat and heat indoors. Traditional radiator (radiator) heating systems require high water supply temperature, resulting in low solar heating heat collection efficiency; solar heating systems are constrained by the weather, and cannot continue to provide heating to indoor rooms at night or on rainy days, failing to meet the heating demand; and Traditional radiators (radiators) have large thermal inertia and cannot make the indoor temperature reach thermal comfort in time.

Contents of the invention

The purpose of the present invention is to provide a solar energy and finned pulsating heat pipe phase change energy storage coupling system, which is used to solve the problem of large thermal inertia of the heat dissipation equipment at the end of the existing heating system. Problems of uneven heating and poor thermal comfort.

The technical solution adopted by the present invention to solve the technical problem is: the solar energy and finned pulsating heat pipe phase change energy storage coupling system includes a vacuum superconducting solar collector, a hot water storage tank, a water distribution tank, and multiple sets of pulsating heat pipe phase change energy storage coupling systems. The variable energy storage floor, water collection tank, controller, vacuum superconducting solar collector, hot water storage tank, and water distribution tank are connected in sequence through the water inlet pipeline, and the water inlet between the vacuum superconducting solar collector and the hot water storage tank A solar circulation pump is installed on the pipeline, and a floor circulation pump is installed on the water inlet pipeline between the hot water storage tank and the water distribution tank. The water outlets of the energy floor are all connected to the water collection tank, and the water collection tank, hot water storage tank, and vacuum superconducting solar collector are connected in turn through the return water pipeline; the vacuum superconducting solar collector, hot water storage tank, and water distribution tank are respectively There are temperature sensors, and each temperature sensor is connected to the controller respectively, and the controller controls the opening and closing of the solar circulation pump and the floor circulation pump;

The finned pulsating heat pipe phase change energy storage floor is as follows from bottom to top: dehumidification and moisture removal layer, thermal insulation layer, phase change material layer, leveling layer, decorative floor layer; the production of finned pulsating heat pipe phase change energy storage floor Process: Lay a dehumidification and dehumidification layer on the ground foundation layer in the house, and then lay a thermal insulation layer on the dehumidification and dehumidification layer, and lay a group of rib-type pulsating heat pipe phase change energy storage integrated modules on the thermal insulation layer to form a phase The phase change material layer, and each group of phase change energy storage integrated modules of the phase change material layer are connected in parallel, and the leveling layer and the decorative floor layer are laid on the phase change material layer in turn; the ribs are arranged between the water collector and the water separator Type pulsating heat pipes on both sides of the phase change energy storage floor; the water inlets of each group of phase change energy storage integrated modules are respectively connected to the water distributor, and the water outlets of each group of phase change energy storage integrated modules are respectively connected to the water collector;

The rib-type pulsating heat pipe phase change energy storage integrated module includes a steel plate box, which is composed of stainless steel plates. The lower layer of the steel plate box is laid with a polyurethane insulation layer. There are several groups of pulsating heat pipes inside the steel box. The pulsating heat pipes are covered with enhanced heat transfer The steel plate box is filled with phase-change energy storage materials, and the upper end of the steel plate box is sealed with an aluminum plate.

In the above scheme, the hot water storage tank is equipped with an auxiliary heat source electric heating system. At night, when the water temperature at the outlet of the collector is lower than 30°C, the auxiliary heat source electric heating system is started to meet the heating demand.

In the above scheme, the phase change energy storage coupling system of solar energy and finned pulsating heat pipes uses finned pulsating heat pipes to meet solar low-temperature heating and enhanced heat transfer, and uses phase change energy storage media to realize abundant solar energy storage and solve the problem of uninterrupted solar heating. sex.

The present invention has the following beneficial effects:

1. The present invention improves the thermal inertia of the traditional heating terminal device, improves the solar heat collection efficiency, increases the heat storage capacity, and makes the indoor temperature distribution more uniform than that of the traditional heating terminal device. day heating.

2. Use the rib-type pulsating heat pipe phase-change energy storage module of the present invention to carry out heating design for farm houses in cold regions to achieve uniform indoor temperature distribution.

3. In view of the problems of low heat collection efficiency of solar heating in rural houses in cold regions, large thermal inertia of heating facilities and inability to supply heat indoors throughout the day, the present invention proposes to combine solar heating system with pulsating heat pipe phase change energy storage floor to improve solar heat collection. The heat collection efficiency of the system improves the problems of large thermal inertia and poor thermal comfort of traditional heating facilities.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic diagram of the structure of the finned pulsating heat pipe phase change energy storage floor;

Fig. 3 is a structural sectional view of a finned pulsating heat pipe phase change energy storage floor.

In the figure: 1-wall 2-pulsating heat pipe 3-enhanced heat transfer fins 4-decorative floor layer 5-phase change material layer 6-leveling layer 7-aluminum plate 8-steel plate box 9-heat insulation layer 10-dehumidification Tidal layer 11-base layer 12-vacuum superconducting solar collector 13-hot water storage tank 14-auxiliary heat source electric heating system 15-water distribution tank 16-water collection tank 17-pulsating heat pipe phase change energy storage floor 18-solar circulation pump 19-floor circulating pump 20-heating room 21-controller 22-ball valve 23-check valve 24-temperature sensor.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be further described:

As shown in Figure 1, this solar energy and finned pulsating heat pipe phase change energy storage coupling system includes a vacuum superconducting solar collector 12, a hot water storage tank 13, a water distribution tank 15, and multiple sets of pulsating heat pipe phase change energy storage floors 17. The water collection tank 16, the controller 21, the vacuum superconducting solar collector 12, the hot water storage tank 13, and the water distribution tank 15 are connected in sequence through the water inlet pipeline, and the vacuum superconducting solar collector 12 and the hot water storage tank 13 are connected in sequence. The solar circulation pump 18 is set on the water inlet pipeline between the solar circulation pump 18, the ball valve 22 is set at the entrance of the solar circulation pump 18, the check valve 23 is set at the outlet of the solar circulation pump 18, and the water inlet pipeline between the hot water storage tank 13 and the water distribution tank 15 A floor circulation pump 19 is installed, a ball valve 22 is installed at the entrance of the floor circulation pump 19, a check valve 23 is installed at the outlet of the floor circulation pump 19, and the water distribution tank 15 is respectively connected to the water inlet of the phase change energy storage floor 17 of multiple sets of pulsating heat pipes. The water outlets of the heat pipe phase change energy storage floor 17 are all connected to the water collection tank 16, and the water collection tank 16, the hot water storage tank 13, and the vacuum superconducting solar collector 12 are connected in sequence through the return water pipeline; the vacuum superconducting solar collector 12 , hot water storage tank 13, and water distribution tank 15 are respectively provided with temperature sensors 24, namely T1, T2, T3, and temperature sensors T1, T2, T3 are connected with controller 21 respectively, and controller 21 controls solar circulation pump 18, floor circulation The opening and closing of the pump 19; the hot water storage tank 13 is provided with an auxiliary heat source electric heating system 14.

The present invention is designed and researched on the problems of low heat collection efficiency of solar heating system in cold regions, large thermal inertia of heating end heat exchanger, and uneven distribution of indoor temperature. The heating terminal is combined to convert the energy, realize the uniform temperature distribution of the heating room 20, improve the efficiency of solar heat collection, and further improve the current situation of the indoor heating of the farm house.

Table 2 The present invention and prior art comparative analysis table

The vacuum superconducting solar heat collector is connected with the pulsating heat pipe through the hot water storage tank 13 to form a loop. During the day, solar energy irradiates the solar heat collector to heat the cold water in the hot water storage tank, so that the water temperature in the tank continues to rise. When the temperature is higher than 30°C, the floor circulating water pump 19 starts to work, and the hot water enters the pulsating heat pipe network. By heating the medium in the pulsating heat pipe network, the room is heated to meet the heating demand. The solar heating system stops working at night, and the phase change energy storage module is used to store excess heat during the day for heating needs at night. When the outlet water temperature of the vacuum superconducting solar collector is lower than 30°C, the auxiliary heat source electric heating system 14 is started to meet the heating demand.

As shown in Figure 2 and Figure 3, the finned pulsating heat pipe phase change energy storage floor from bottom to top is: dehumidification and moisture removal layer 10, thermal insulation layer 9, phase change material layer 5, leveling layer 6, decorative floor Layer 4; the manufacturing process of the rib-type pulsating heat pipe phase change energy storage floor: lay a dehumidification and dehumidification layer 10 on the ground base layer 11 along the wall 1 in the house, and then lay a thermal insulation layer 9 on the dehumidification and dehumidification layer 10, A group of fin-type pulsating heat pipe phase change energy storage integrated modules is laid on the thermal insulation layer 9 to form a phase change material layer 5, and each group of phase change energy storage integrated modules in the phase change material layer is connected in parallel. On the material layer 5, a leveling layer 6 and a decorative floor layer 4 are laid in turn; the water collector and the water separator are arranged on both sides of the finned pulsating heat pipe phase change energy storage floor; the water inlet of each group of phase change energy storage integrated modules They are respectively connected to the water separators, and the water outlets of each group of phase change energy storage integrated modules are respectively connected to the water collectors.

The rib-type pulsating heat pipe phase change energy storage integrated module includes a steel plate box 8, which is composed of stainless steel plates. The top is covered with enhanced heat transfer fins 3 , the steel plate box 8 is filled with phase change energy storage materials, and the upper end of the steel plate box 8 is sealed with an aluminum plate 7 .

The finned pulsating heat pipe phase change energy storage floor can be heated by the solar heating system. The solar energy heats the cold water in the hot water storage tank 13 through the heat collected by the collector, and the hot water is delivered to the phase change energy storage floor through the water separator. In the pulsating heat pipe 2, the pulsating heat pipe 2 is evenly distributed under the ground, and the floor surface can capture relatively uniform heat from the pulsating heat pipe network, so the indoor temperature distribution is relatively uniform, and the pulsating heat pipe 2 has small thermal inertia, which can be started at any time. Heating; and when the water supply temperature is around 30°C, it can meet the indoor heating demand.

Table 1 Comparative analysis table of finned pulsating heat pipe phase change energy storage integrated module and existing technology

The working process of the present invention: sunlight shines on the solar heat collector during the day, and the heat collector transports the collected heat to the heat exchange tube of the hot water storage tank 13, and heats the cold water in the hot water storage tank 13. When the indoor temperature is too low in winter and needs to be heated, the floor circulation pump 19 starts to work, injects heated hot water into the water distribution tank 15, heats the evaporation section of the heat pipe, and the working fluid inside the heat pipe absorbs heat and vaporizes, and flows to condensation under a small pressure difference The condensed liquid returns to the evaporating section under the action of the pressure difference, and this cycle is repeated through the pulsating heat pipe network phase change energy storage floor to dissipate heat indoors to meet indoor heating needs. When the indoor temperature meets the heating demand, the solar heat collection system will continue to absorb the heat of the sun, and use the phase change energy storage material to store the excess heat for use at night or in rainy days to improve the heat collection efficiency of the solar energy. If the stored heat cannot meet the heating demand at night or in rainy days, then turn on the auxiliary heat source electric heating system 14 on the water supply pipeline as an auxiliary, which can alleviate the current environmental pollution caused by coal burning in rural areas in cold regions, and at the same time solve the problem of power shortage during peak periods of electricity consumption . Therefore, the phase-change energy storage coupling system of solar energy and fin-type pulsating heat pipes can realize efficient and multi-energy utilization of solar energy for heating in cold regions in winter; The indoor temperature is evenly distributed, which improves the current situation of indoor heating in farm houses in cold regions.

Claims (3)

1. A solar energy and finned pulsating heat pipe phase change energy storage coupling system, characterized in that: the solar energy and finned pulsating heat pipe phase change energy storage coupling system includes a vacuum superconducting solar collector (12), a storage Hot water tank (13), water distribution tank (15), multi-group pulsating heat pipe phase change energy storage floor (17), water collection tank (16), controller (21), vacuum superconducting solar collector (12), storage The hot water tank (13) and the water distribution tank (15) are connected sequentially through the water inlet pipeline, and the solar circulation pump (18 ), a floor circulation pump (19) is installed on the water inlet pipeline between the hot water storage tank (13) and the water distribution tank (15), and the water distribution tank (15) is respectively connected to multiple sets of pulsating heat pipe phase change energy storage floors (17) The water inlet and the water outlet of the multi-group pulsating heat pipe phase change energy storage floor (17) are all connected to the water collection tank (16), the water collection tank (16), the hot water storage tank (13), the vacuum superconducting solar collector (12 ) are connected sequentially through the return water pipeline; the vacuum superconducting solar collector (12), the hot water storage tank (13), and the water distribution tank (15) are respectively provided with temperature sensors, and each temperature sensor is respectively connected with the controller (21) , the controller (21) controls the opening and closing of the solar circulation pump (18) and the floor circulation pump (19); The finned pulsating heat pipe phase change energy storage floor is as follows from bottom to top: dehumidification and moisture removal layer (10), thermal insulation layer (9), phase change material layer (5), leveling layer (6), decorative floor layer (4); The manufacturing process of the finned pulsating heat pipe phase change energy storage floor: Lay the dehumidification and dehumidification layer (10) on the ground base layer (11) in the house, and then lay the thermal insulation layer on the dehumidification and dehumidification layer (10) (9), laying fin-type pulsating heat pipe phase change energy storage integrated modules group by group on the thermal insulation layer (9) to form a phase change material layer (5), and each group of phase change material layers (5) has a phase change The energy storage integrated modules are all connected in parallel, and the leveling layer (6) and the decorative floor layer (4) are laid on the phase change material layer (5) in sequence; On both sides of the energy floor; the water inlets of each group of phase change energy storage integrated modules are respectively connected to the water separator, and the water outlets of each group of phase change energy storage integrated modules are respectively connected to the water collector; The finned pulsating heat pipe phase change energy storage integrated module includes a steel plate box (8), which is composed of stainless steel plates, and the lower layer of the steel plate box (8) is laid with a polyurethane insulation layer. A set of pulsating heat pipes (2), the pulsating heat pipes (2) are covered with enhanced heat transfer fins (3), the steel plate box (8) is filled with phase change energy storage materials, and the upper end of the steel plate box (8) is sealed with an aluminum plate (7). 2. The solar energy and fin-type pulsating heat pipe phase change energy storage coupling system according to claim 1, characterized in that: the hot water storage tank (13) is provided with an auxiliary heat source electric heating system (14). 3. The solar energy and finned pulsating heat pipe phase change energy storage coupling system according to claim 2, characterized in that: the finned pulsating heat pipe is used to meet the low temperature heating and heat transfer enhancement of solar energy, and the phase change energy storage medium is used to achieve rich Advanced solar energy storage solves the uninterrupted nature of solar heating.