Low-consumption mobile energy supply device based on solar energy utilization

Abstract

The utility model discloses a low-consumption mobile energy supply device based on solar energy utilization in the technical field of building function equipment. The low-consumption mobile energy supply device comprises a heat pump temperature adjusting system and a fresh air humidity adjusting system which are communicated with a room. The fresh air humidifying system comprises a groove type heat collector, an expansion machine, a heat storage pipe section, a condensation pipe section, a working medium pump, a heat storage groove, a rotary dehumidifier, a fresh air fan, a pretreatment air section, a thermoelectric piece, a first stop valve, a second stop valve, a third stop valve, a fan, a second temperature sensor and an auxiliary electric heater. According to the low-consumption mobile energy supply device based on solar energy utilization, the temperature and humidity of a building can be separately adjusted, on one hand, the requirement for a temperature adjusting system can be lowered, particularly, the temperature of chilled water for cooling in summer can be increased, and then the COP of a water chilling unit can be increased; solar energy is directly and indirectly utilized, efficient utilization of low-grade energy can be achieved, and energy consumption of a fresh air humidity adjusting system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building functional equipment, in particular to a low-consumption mobile energy supply device based on solar energy utilization. Background Art

[0002] During the initial phase of building acceptance, especially when occupancy rates don't meet the threshold for centralized heating and cooling, mobile energy stations offer irreplaceable advantages in providing temporary energy. Air-cooled mobile energy stations, in particular, offer greater flexibility due to their unrestricted water supply. However, since air is the heat exchange medium on one side of these stations, the poor heat transfer efficiency limits their operational energy efficiency. Furthermore, the air temperature and humidity requirements for different buildings vary. Current extensive energy supply methods cannot achieve high-precision, on-demand energy supply. The proportion of energy provided for temperature and humidity control is unclear, hindering accurate energy measurement and sales, impacting the efficiency of these air-cooled mobile energy stations. Utility Model Content

[0003] The purpose of the present invention is to provide a low-consumption mobile energy supply device based on the use of solar energy, so as to solve the problem in the above-mentioned background technology that the current extensive energy supply method cannot achieve high-precision on-demand energy supply.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-consumption mobile energy supply device based on solar energy utilization, comprising: a heat pump temperature control system and a fresh air humidity control system connected to the room;

[0005] The heat pump temperature control system includes a fan coil unit arranged in the room and an energy supply device connected to the fan coil unit;

[0006] The fresh air humidity control system includes a pre-treatment air section connected to the room, a heat storage tank connected to the pre-treatment air section, a rotary dehumidifier connected between the pre-treatment air section and the heat storage tank, and a solar energy supply mechanism connected to the heat storage tank. A fresh air fan, a thermoelectric sheet and a second temperature sensor are provided in the pre-treatment air section, and an air inlet and an air outlet are provided on the heat storage tank.

[0007] Preferably, the energy supply equipment includes a compressor, a four-way reversing valve, a first heat exchanger, a second heat exchanger and a water pump; the compressor, the four-way reversing valve, the first heat exchanger and the second heat exchanger are connected in series in sequence, the water inlet and outlet of the second heat exchanger are connected to the fan coil through the water supply pipe and the return pipe respectively, and the water pump is installed on the water supply pipe.

[0008] Preferably, a throttle valve is provided on the connecting pipe between the first heat exchanger and the second heat exchanger.

[0009] Preferably, the solar energy supply mechanism includes a trough collector, an expander, a heat storage pipe section, a condensing pipe section and a working fluid pump; the trough collector, the expander, the heat storage pipe section, the condensing pipe section and the working fluid pump are connected in series in sequence, and the heat storage pipe section is arranged in the heat storage tank.

[0010] Preferably, the air outlet is connected to the pretreatment air section through a pipe, and the pipe is connected to the inlet and outlet of the rotary dehumidifier through two groups of conduits respectively. An auxiliary electric heater is provided on the inlet of the rotary dehumidifier, and the two groups of conduits are respectively provided with a first stop valve and a second stop valve. The pipe is provided with a third stop valve located between the first stop valve and the second stop valve, and a fan is provided on the air inlet.

[0011] Preferably, an air bypass pipe is provided between the inlet and outlet ends of the expander, a flow regulating valve is provided on the air bypass pipe, and a first temperature sensor is provided in the heat storage tank.

[0012] Preferably, the expander is provided with a power generation device, and the power generation device is electrically connected to the thermoelectric plate and the auxiliary electric heater.

[0013] Preferably, the connecting areas of the fan coil unit, the pre-treatment air section and the room are located at the upper and lower sides of the room respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the low-consumption mobile energy supply device based on solar energy utilization in the present application can realize separate regulation of the temperature and humidity of the building. On the one hand, it can reduce the requirements for the temperature control system, especially the chilled water temperature for cooling in summer, thereby improving the COP of the chiller; the device adopts direct and indirect utilization of solar energy, which can realize the efficient utilization of low-grade energy and reduce the energy consumption of the fresh air humidity control system; and adopts a pre-treated air section, which can pre-process the fresh air to a suitable temperature and humidity under different working modes, reduce the fresh air load, and further reduce the energy consumption of air conditioning; at the same time, the fresh air supply outlet is arranged at the bottom of the room. On the one hand, the fresh air is delivered to the range of personnel activities, which is beneficial to improve the air cleanliness of the activity area. On the other hand, the air supply at the bottom of the fresh air outlet and the air supply at the top of the fan coil can effectively improve the turbulence of the indoor air flow organization and enhance the heat transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model.

[0016] In the figure: 1. Compressor; 2. Four-way reversing valve; 3. First heat exchanger; 4. Throttle valve; 5. Second heat exchanger; 6. Water pump; 7. Water supply pipe; 8. Fan coil; 9. Return pipe; 10. Trough collector; 11. Expander; 12. Heat storage pipe section; 13. Condensation pipe section; 14. Working fluid pump; 15. Gas bypass pipe; 16. Flow regulating valve; 17. Heat storage tank; 18. Air inlet; 19. Air outlet; 20. First temperature sensor; 21. Rotary dehumidifier; 22. Fresh air fan; 23. Pre-treatment air section; 24. Thermoelectric plate; 25. First stop valve; 26. Second stop valve; 27. Third stop valve; 28. Fan; 29. Second temperature sensor; 30. Auxiliary electric heater; 31. Room; 32. Solar energy supply mechanism; 33. Energy supply equipment. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1:

[0019] See also Figure 1 , a low-consumption mobile energy supply device based on solar energy utilization, including: a heat pump temperature control system and a fresh air humidity control system connected to room 31;

[0020] See also Figure 1 The heat pump temperature control system includes an energy supply device 33 and a fan coil unit 8. The energy supply device 33 is composed of a compressor 1, a four-way reversing valve 2, a first heat exchanger 3, a second heat exchanger 5, and a water pump 6. The fan coil unit 8 is connected and installed in the room 31. The compressor 1, the four-way reversing valve 2, the first heat exchanger 3 and the second heat exchanger 5 are connected in series in sequence. The water inlet and outlet of the second heat exchanger 5 are connected to the fan coil unit 8 through a water supply pipe 7 and a return pipe 9. The water pump 6 is installed on the water supply pipe 7. A throttle valve 4 is provided on the connecting pipe between the first heat exchanger 3 and the second heat exchanger 5. The throttle valve 4 is used to throttle and reduce the pressure of the medium flowing between the first heat exchanger 3 and the second heat exchanger 5.

[0021] See also Figure 1The fresh air humidity control system includes a solar energy supply mechanism 32, a heat storage tank 17, a rotary dehumidifier 21, a fresh air fan 22, a pre-processed air section 23, a thermoelectric plate 24, a first stop valve 25, a second stop valve 26, a third stop valve 27, a fan 28, a second temperature sensor 29 and an auxiliary electric heater 30. The solar energy supply mechanism 32 is composed of a trough collector 10, an expander 11, a heat storage pipe section 12, a condensing pipe section 13, and a working fluid pump 14.

[0022] Among them, the trough collector 10, the expander 11, the heat storage pipe section 12, the condensing pipe section 13 and the working fluid pump 14 are connected in series in sequence; the heat storage pipe section 12 is arranged in the heat storage tank 17, and the heat storage tank 17 is provided with an air inlet 18 and an air outlet 19; the pre-processing air section 23 is connected and installed in the room 31, and the fresh air fan 22, the thermoelectric sheet 24 and the second temperature sensor 29 are arranged in the pre-processing air section 23; the air outlet 19 is connected to the pre-processing air section 23 through a pipe, and the pipe is connected to the rotary dehumidifier 21 through two sets of conduits. The inlet and outlet are connected (the rotary dehumidifier 21 is divided into a regeneration section and an air treatment section. The rotary dehumidifier 21 is provided with an inlet and outlet for regeneration air and an inlet and outlet for drying air. One group of conduits is connected to the regeneration air inlet of the rotary dehumidifier 21, and the other group of conduits is connected to the drying air outlet of the rotary dehumidifier 21). A first stop valve 25 and a second stop valve 26 are respectively provided on the two groups of conduits. A third stop valve 27 is provided on the pipeline between the first stop valve 25 and the second stop valve 26. A fan 28 is provided on the air inlet 18.

[0023] In this embodiment, as a further optimization solution, please refer to Figure 1 An air separation bypass pipe 15 is provided between the inlet and outlet ends of the expander 11, a flow regulating valve 16 is provided on the air separation bypass pipe 15, and a first temperature sensor 20 is provided in the heat storage tank 17; the flow regulating valve 16 is adjusted according to the temperature value collected by the first temperature sensor 20 in the heat storage tank 17 (the control flow regulating valve 16 is opened to allow part of the high-temperature and high-pressure steam in the trough collector 10 to directly enter the heat storage tank 17 through the air separation bypass pipe 15 without passing through the expander 11), so that the temperature in the heat storage tank 17 meets the regeneration temperature requirement of the rotor dehumidification.

[0024] In this embodiment, as a further optimization solution, please refer to Figure 1 The expander 11 is provided with a power generation device, which is electrically connected to the thermoelectric plate 24 and the auxiliary electric heater 30; the expander 11 is used to perform external work, so that the power generation device generates electricity, provides energy for the thermoelectric plate 24 and the auxiliary electric heater 30, and achieves the effect of saving energy.

[0025] In this embodiment, as a further optimization solution, please refer to Figure 1The connecting areas of the fan coil unit 8, the pre-treatment air section 23 and the room 31 are respectively located on the upper and lower sides of the room 31; the air is supplied from the bottom of the fresh air outlet and from the top of the fan coil unit, which can effectively improve the turbulence of the indoor air flow organization and enhance the heat transfer effect.

[0026] In summary, the working mode of the mobile energy supply device is as follows:

[0027] (1) Summer cooling and dehumidification mode:

[0028] The heat pump temperature control system is started, and the four-way reversing valve 2 is adjusted to the cooling mode. The low-pressure and low-temperature refrigerant gas enters the compressor 1 and is converted into high-temperature and high-pressure gas under the action of the compressor 1; then it enters the first heat exchanger 3 through the four-way reversing valve 2 to condense and release heat, and then becomes a low-temperature medium-pressure liquid. It enters the throttle valve 4 for throttling and pressure reduction, and then flows into the second heat exchanger 5 to evaporate and absorb heat, making the heat exchange medium in the second heat exchanger 5 cooler (the temperature decreases), and finally flows into the inlet of the compressor 1 through the four-way reversing valve 2, forming a cycle; the chilled water (the heat exchange medium in the second heat exchanger 5) flows through the water supply pipe 7 under the action of the water pump 6 and enters the fan coil 8 to release cold energy into the room, and flows back to the second heat exchanger 5 through the return pipe 9 to continue absorbing cold energy, forming a cycle.

[0029] The fresh air humidity control system starts, and the trough collector 10 absorbs solar energy, turning the liquid in the trough collector 10 into high-temperature and high-pressure steam. The high-temperature and high-pressure steam flows through the expander 11 in turn to perform work and discharge externally. The resulting exhaust steam flows through the heat storage pipe section 12 to release heat (heating the inside of the heat storage tank 17), and then enters the condenser pipe section 13 to further release the excess heat to generate condensed liquid; finally, under the action of the working fluid pump 14, it flows into the trough collector 10 to form a cycle; open the first stop valve 25, the second stop valve 26, and close the third stop valve 27, so that the thermoelectric plate 24 starts the cooling mode. Under the guidance of the fresh air fan 22, the outdoor fresh air releases the moisture in the air when passing through the air treatment section of the rotary dehumidifier 21, and becomes low-humidity gas. After flowing into the pre-treatment air section 23, it absorbs the cold energy of multiple thermoelectric plates 24. After the second temperature sensor 29 detects that the air reaches the set temperature, fresh air is formed and enters the room at the bottom of the room; and under the action of the fan 28, the regenerated gas passes through the air inlet 18 into the heat storage tank 17 and the auxiliary electric heater 30 in turn to absorb heat, and then enters the rotary dehumidifier 21, regenerates the moisture adsorbed by the hygroscopic material of the rotary dehumidifier 21, vaporizes it, and then becomes exhaust gas and is discharged into the atmosphere.

[0030] (2) Winter warming mode:

[0031] The heat pump temperature control system is started, and the four-way reversing valve 2 is adjusted to the heating mode. The low-pressure and low-temperature refrigerant gas enters the compressor 1. After being converted into high-temperature and high-pressure gas under the action of the compressor 1, it enters the second heat exchanger 5 through the four-way reversing valve 2 to condense and release heat (which will increase the temperature of the heat exchange medium in the second heat exchanger 5). It then becomes a low-temperature and medium-pressure liquid and enters the throttle valve 4 for throttling and pressure reduction. It then flows into the first heat exchanger 3 to evaporate, absorb heat, and produce cooling capacity. Finally, it flows into the inlet of the compressor 1 through the four-way reversing valve 2, forming a cycle; the hot water (the heat exchange medium in the second heat exchanger 5) flows through the water supply pipe 7 under the action of the water pump 6 and enters the fan coil 8 to release heat into the room, and then flows back to the second heat exchanger 5 through the return pipe 9 to absorb heat, forming a cycle.

[0032] The fresh air humidity control system is turned off, and the trough collector 10 absorbs solar energy to form high-temperature and high-pressure steam. The high-temperature and high-pressure steam flows through the expander 11 in turn to perform work and discharge externally. The resulting exhaust steam flows through the heat storage pipe section 12 to release heat, and further releases the excess heat completely in the condensation pipe section 13 to generate condensed liquid, which finally flows into the trough collector 10 under the action of the working fluid pump 14 to form a cycle; close the first stop valve 25 and the second stop valve 26, and open the third stop valve 27 to turn on the thermoelectric plate 24 to start the heating mode, and turn on the fresh air fan 22, so that the external gas enters the heat storage tank 17 through the air inlet 18 in turn under the action of the fresh air fan 22 to absorb heat, and then flows to the pretreatment air section 23 to absorb heat from multiple thermoelectric plates 24. After the second temperature sensor 29 detects that the gas reaches the set temperature, fresh air is formed and enters the room 31 from the bottom of the room 31.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-consumption mobile energy supply device based on solar energy utilization, characterized by: include: a heat pump temperature control system and a fresh air humidity control system connected to the room (31); The heat pump temperature control system includes a fan coil unit (8) arranged in a room (31) and an energy supply device (33) connected to the fan coil unit (8); The fresh air humidity control system comprises a pre-processing air section (23) connected to a room (31), a heat storage tank (17) connected to the pre-processing air section (23), a rotary dehumidifier (21) connected between the pre-processing air section (23) and the heat storage tank (17), and a solar energy supply mechanism (32) connected to the heat storage tank (17); a fresh air blower (22), a thermoelectric plate (24) and a second temperature sensor (29) are provided in the pre-processing air section (23); and an air inlet (18) and an air outlet (19) are provided on the heat storage tank (17).

2. A low-consumption mobile energy supply device based on solar energy utilization according to claim 1, characterized in that: The energy supply equipment (33) comprises a compressor (1), a four-way reversing valve (2), a first heat exchanger (3), a second heat exchanger (5) and a water pump (6); the compressor (1), the four-way reversing valve (2), the first heat exchanger (3) and the second heat exchanger (5) are sequentially connected in series, the water inlet and outlet of the second heat exchanger (5) are respectively connected to the fan coil (8) through a water supply pipe (7) and a return pipe (9), and the water pump (6) is installed on the water supply pipe (7).

3. The low-consumption mobile energy supply device based on solar energy utilization according to claim 2, characterized in that: A throttle valve (4) is provided on the connecting pipe between the first heat exchanger (3) and the second heat exchanger (5).

4. The low-consumption mobile energy supply device based on solar energy utilization according to claim 1, characterized in that: The solar energy supply mechanism (32) comprises a trough heat collector (10), an expander (11), a heat storage pipe section (12), a condensing pipe section (13) and a working fluid pump (14); the trough heat collector (10), the expander (11), the heat storage pipe section (12), the condensing pipe section (13) and the working fluid pump (14) are sequentially connected in series, and the heat storage pipe section (12) is arranged in a heat storage tank (17).

5. The low-consumption mobile energy supply device based on solar energy utilization according to claim 4, characterized in that: The air outlet (19) is communicated with the pre-treatment air section (23) through a pipeline, and the pipeline is respectively communicated with the inlet and outlet of the rotary dehumidifier (21) through two groups of conduits. An auxiliary electric heater (30) is provided on the inlet of the rotary dehumidifier (21), and the two groups of conduits are respectively provided with a first stop valve (25) and a second stop valve (26). The pipeline is provided with a third stop valve (27) located between the first stop valve (25) and the second stop valve (26), and a fan (28) is provided on the air inlet (18).

6. The low-consumption mobile energy supply device based on solar energy utilization according to claim 4, characterized in that: An air bypass pipe (15) is provided between the inlet and outlet ends of the expander (11), a flow regulating valve (16) is provided on the air bypass pipe (15), and a first temperature sensor (20) is provided in the heat storage tank (17).

7. The low-consumption mobile energy supply device based on solar energy utilization according to claim 5, characterized in that: The expander (11) is provided with a power generation device, and the power generation device is electrically connected to the thermoelectric plate (24) and the auxiliary electric heater (30).

8. The low-consumption mobile energy supply device based on solar energy utilization according to claim 1, characterized in that: The connection areas between the fan coil unit (8), the pre-treatment air section (23) and the room (31) are located at the upper and lower sides of the room (31) respectively.

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