CN210801689U - Energy optimization system for central air conditioner and heat pump system - Google Patents
Energy optimization system for central air conditioner and heat pump system Download PDFInfo
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- CN210801689U CN210801689U CN201921246547.4U CN201921246547U CN210801689U CN 210801689 U CN210801689 U CN 210801689U CN 201921246547 U CN201921246547 U CN 201921246547U CN 210801689 U CN210801689 U CN 210801689U
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Abstract
The utility model provides a central air conditioning and heat pump system energy optimization system which characterized in that: the heat pump evaporator is installed in the ventilation cabinet, one end of the ventilation cabinet is an air inlet end, one end of the ventilation cabinet is an air outlet end, the heat pump evaporator is installed at the air outlet end of the ventilation cabinet, the air conditioner evaporator is installed at the air inlet end of the ventilation cabinet and connected with the central air conditioning system, a ventilation device is arranged in the ventilation cabinet, and air at one end of the air conditioner evaporator is sent to one end of the heat pump evaporator. The utility model has the advantages that: the evaporator of the air conditioning system is connected with the evaporator of the heat pump system through the fume hood, and the heat pump evaporator is used for absorbing heat emitted by the air conditioning evaporator, so that the waste heat utilization effect is achieved, and the working efficiency of the heat pump system is improved.
Description
Technical Field
The utility model relates to a heat pump water heater specifically is a central air conditioning and heat pump system energy optimization system.
Background
With the increasing living standard of people, air conditioners and heat pump water heaters enter more and more families, and the air conditioners and the heat pump water heaters continuously complete thermodynamic cycle by utilizing working media (refrigerants) according to the inverse Carnot cycle principle to realize heat conversion so as to achieve the purposes of refrigerating and supplying hot water. In the prior art, an air conditioner and a heat pump water heater are usually used independently, and the waste heat emitted during the refrigeration of the air conditioner is not fully utilized and is not energy-saving enough, so that the air conditioner and the heat pump water heater need to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming that prior art exists, provide a simple structure, convenient to use is connected central air conditioning system and heat pump system to a central air conditioning and heat pump system energy optimization system of increasing the heat efficiency.
The utility model discloses the purpose is realized with following mode: the utility model provides a central air conditioning and heat pump system energy optimization system which characterized in that: the heat pump system comprises an enhanced vapor injection compressor, a four-way reversing valve, a shell type heat exchanger, a heat pump evaporator, a main electronic expansion valve, an auxiliary electronic expansion valve, a gas-liquid separator and an intermediate heat exchanger, wherein the intermediate heat exchanger contains a medium-pressure coil and a high-pressure coil and contains gaseous and liquid refrigerants, an exhaust port of the enhanced vapor injection compressor is communicated with a first through hole of the four-way reversing valve, a second through hole of the four-way reversing valve is communicated with an inlet end of the shell type heat exchanger, an outlet end of the shell type heat exchanger is communicated with an inlet end of the high-pressure coil of the intermediate heat exchanger, an outlet end of the high-pressure coil is communicated with an inlet end of the main electronic expansion valve, an outlet end of the main electronic expansion valve is communicated with an inlet end of the heat pump evaporator, an outlet end of the heat pump evaporator is communicated with a third through hole of the four, the outlet end of the gas-liquid separator is communicated with the air suction port of the enhanced vapor injection compressor; the outlet end of the shell type heat exchanger is connected with an auxiliary electronic expansion valve in parallel and then is connected with the inlet end of a medium-pressure coil of the intermediate heat exchanger, and the outlet end of the medium-pressure coil is communicated with an auxiliary air suction port of the enhanced vapor injection compressor; the main electronic expansion valve and the auxiliary electronic expansion valve are connected with an air system; the heat pump evaporator is installed in the fume hood, fume hood one end is the inlet end, one end is for giving vent to anger the end, the heat pump evaporator is installed in the end of giving vent to anger of fume hood, the fume hood inlet end install the air conditioner evaporimeter, the air conditioner evaporimeter is connected with central air conditioning system, be provided with ventilation unit in the fume hood, be sent to the air of air conditioner evaporimeter one end heat pump evaporator one end.
The ventilating device is a fan arranged on the heat pump evaporator and the air conditioner evaporator, the air flow directions of the fans are all arranged at one end of the heat pump evaporator, air flow is forced to enter from the air inlet end of the ventilating cabinet, exchanges heat with the air conditioner evaporator, exchanges heat with the heat pump evaporator and is finally discharged from the air outlet end.
The inlet end and the outlet end of the fume hood are connected in parallel with a bypass pipe, and the bypass pipe is provided with a gate valve and a return fan.
And an air inlet temperature detector and an air outlet temperature detector are respectively arranged on the air inlet end and the air outlet port of the ventilation cabinet and are electrically connected with the control system.
And when the inlet air temperature detector detects that the temperature is higher than the temperature detected by the outlet air temperature detector, the gate valve is opened.
And an air return temperature probe is arranged at the inlet end of the gas-liquid separator.
The inlet end of the heat pump evaporator is provided with a temperature probe after throttling, and the middle part of the heat pump evaporator is provided with an evaporator temperature probe.
And an exhaust temperature probe is arranged at the exhaust end of the enhanced vapor injection compressor.
The utility model has the advantages that: 1. simple structure, low production cost and improved market competitiveness. 2. The electronic expansion valve is used for replacing a mechanical expansion valve in the prior art, the application range is wide, the defects of superheat degree control lag and the like of the traditional mechanical expansion valve caused by heat capacity of an evaporator pipe wall and a sensor are avoided, the system adjustment quality is improved, and the superheat degree is controlled within a target range in a wide evaporation temperature area. 3. The evaporator of the air conditioning system is connected with the evaporator of the heat pump system through the fume hood, and the heat pump evaporator is used for absorbing heat emitted by the air conditioning evaporator, so that the waste heat utilization effect is achieved, and the working efficiency of the heat pump system is improved.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The utility model provides a central air conditioning and heat pump system energy optimization system which characterized in that: the heat pump system comprises a heat pump system and a central air-conditioning system 94, wherein the heat pump system comprises an enhanced vapor injection compressor 1, a four-way reversing valve 2, a shell type heat exchanger 3, a heat pump evaporator 4, a main electronic expansion valve 5, an auxiliary electronic expansion valve 6, a gas-liquid separator 7 and an intermediate heat exchanger 8, the intermediate heat exchanger 8 contains a medium-pressure coil 81 and a high-pressure coil 82 and contains gaseous and liquid refrigerants, an exhaust port of the enhanced vapor injection compressor 1 is communicated with a first through hole of the four-way reversing valve 2, a second through hole of the four-way reversing valve 2 is communicated with an inlet end of the shell type heat exchanger 3, an outlet end of the shell type heat exchanger 3 is communicated with an inlet end of the high-pressure coil 82 of the intermediate heat exchanger 8, an outlet end of the high-pressure coil 82 is communicated with an inlet end of the main electronic expansion valve 5, an outlet end of the main electronic expansion valve 5 is communicated, the fourth through hole of the four-way reversing valve 2 is communicated with the inlet end of the gas-liquid separator 7, and the outlet end of the gas-liquid separator 7 is communicated with the air suction port of the enhanced vapor injection compressor 1; the outlet end of the shell type heat exchanger 3 is also connected with an auxiliary electronic expansion valve 6 in parallel and then is connected with the inlet end of a medium-pressure coil 81 of an intermediate heat exchanger 8, and the outlet end of the medium-pressure coil 81 is communicated with an auxiliary air suction port of the enhanced vapor injection compressor 1; the main electronic expansion valve 5 and the auxiliary electronic expansion valve 6 are connected with an air system; heat pump evaporator 4 install in fume chamber 9, 9 one end of fume chamber is inlet end 91, one end is for giving vent to anger end 92, heat pump evaporator 4 installs the end 92 of giving vent to anger at fume chamber 9, 9 inlet end 91 of fume chamber install air conditioner evaporator 93, air conditioner evaporator 93 is connected with central air conditioning system 94, be provided with ventilation unit in the fume chamber 9, be sent to the air of air conditioner evaporator 93 one end heat pump evaporator 4 one end.
The ventilating device is a fan 95 arranged on the heat pump evaporator 4 and the air conditioner evaporator 93, the air flow directions of the fans are all arranged at one end of the heat pump evaporator 4, air flow is forced to enter from the air inlet end 91 of the ventilating cabinet 9, exchanges heat with the air conditioner evaporator 93, exchanges heat with the heat pump evaporator 4 again, and finally is discharged from the air outlet end 92.
A bypass pipe 96 is connected in parallel with the inlet end 91 and the outlet end 92 of the fume hood 9, and a gate valve 97 and a return air blower 98 are arranged on the bypass pipe 96.
And an air inlet temperature detector 911 and an air outlet temperature detector 921 are respectively arranged on the air inlet end 91 and the air outlet end 92 of the fume hood 9 and are electrically connected with a control system.
And when the inlet air temperature detector detects that the temperature is higher than the temperature detected by the outlet air temperature detector, the gate valve is opened.
The inlet end of the gas-liquid separator 7 is provided with a return air temperature probe 71.
The inlet end of the heat pump evaporator 4 is provided with a temperature probe 41 after throttling, and the middle part of the heat pump evaporator 4 is provided with an evaporator temperature probe 42.
And an exhaust temperature probe 11 is arranged at the exhaust end of the enhanced vapor injection compressor 1.
The working principle is as follows: in some large markets, schools, apartments, commodity buildings and other environments requiring central heating, a central air conditioner and a heat pump water heater group are usually installed in a split manner, and the central air conditioner and the heat pump water heater group are not in any relation with each other, so that most of waste heat generated by an air conditioning system is discharged into the air, and certain waste heat is generated. On the contrary, the heat pump system needs to extract heat from the air, but the heat pump system is greatly influenced by the ambient temperature, and generally the heating efficiency is low, so the two heat pump systems need to be integrated to achieve the effect of energy complementation.
In order to solve the problem, the heat pump evaporator 4 and the air conditioner evaporator are arranged in the ventilation cabinet 9, one end of the ventilation cabinet 9 is an air inlet end 91, the other end of the ventilation cabinet 9 is an air outlet end 92, the heat pump evaporator 4 is arranged at the air outlet end 92 of the ventilation cabinet 9, the air conditioner evaporator 93 is arranged at the air inlet end 91 of the ventilation cabinet 9, the air conditioner evaporator 93 is connected with a central air conditioning system 94, and a ventilation device is arranged in the ventilation cabinet 9 and is used for sending air at one end of the air conditioner evaporator 93 to one end of the heat pump evaporator 4. When the central air-conditioning system works, air exchanges heat with the air-conditioning evaporator, the temperature of the air subjected to heat exchange rises, at the moment, the air subjected to heat exchange enters the heat pump evaporator through the fume hood, and the heat is absorbed by the heat pump evaporator to reduce the temperature of the air. The air after heat exchange is higher in temperature compared with the ambient temperature, so that the temperature difference between the air after heat exchange and the refrigerant in the heat pump evaporator is large, the heat exchange efficiency can be effectively improved, and the heating effect of the heat pump system is improved. Meanwhile, an air inlet temperature detector 911 and an air outlet temperature detector 921 are respectively arranged on the air inlet end 91 and the air outlet end 92 of the ventilation cabinet 9 and are electrically connected with the control system, when the air inlet temperature detector detects that the temperature is higher than the temperature detected by the air outlet temperature detector, the gate valve and the air return machine are opened, the air return machine returns the air at the air outlet end of the ventilation cabinet to the air inlet end, so that the air at a lower temperature exchanges heat with the air-conditioning evaporator, the refrigeration effect of the air-conditioning system is improved, the air-conditioning system and the heat pump system exchange heat, the working efficiency of the air-conditioning system and the heat pump system is improved and reduced while the respective normal work is met, and therefore the ventilation cabinet can be widely popularized.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a central air conditioning and heat pump system energy optimization system which characterized in that: the heat pump system comprises a heat pump system and a central air-conditioning system (94), wherein the heat pump system comprises an enhanced vapor injection compressor (1), a four-way reversing valve (2), a shell type heat exchanger (3), a heat pump evaporator (4), a main electronic expansion valve (5), an auxiliary electronic expansion valve (6), a gas-liquid separator (7) and an intermediate heat exchanger (8), the intermediate heat exchanger (8) contains a medium-pressure coil (81) and a high-pressure coil (82) and also contains gaseous and liquid refrigerants, an exhaust port of the enhanced vapor injection compressor (1) is communicated with a first through hole of the four-way reversing valve (2), a second through hole of the four-way reversing valve (2) is communicated with an inlet end of the shell type heat exchanger (3), an outlet end of the shell type heat exchanger (3) is communicated with an inlet end of the high-pressure coil (82) of the intermediate heat exchanger (8), an outlet end of the high-pressure coil (, the outlet end of the main electronic expansion valve (5) is communicated with the inlet end of the heat pump evaporator (4), the outlet end of the heat pump evaporator (4) is communicated with the third through hole of the four-way reversing valve (2), the fourth through hole of the four-way reversing valve (2) is communicated with the inlet end of the gas-liquid separator (7), and the outlet end of the gas-liquid separator (7) is communicated with the air suction port of the enhanced vapor injection compressor (1); the outlet end of the shell type heat exchanger (3) is also connected with an auxiliary electronic expansion valve (6) in parallel and then is connected with the inlet end of a medium-pressure coil (81) of the intermediate heat exchanger (8), and the outlet end of the medium-pressure coil (81) is communicated with an auxiliary air suction port of the enhanced vapor injection compressor (1); the main electronic expansion valve (5) and the auxiliary electronic expansion valve (6) are connected with an air system; heat pump evaporator (4) install in fume chamber (9), fume chamber (9) one end is inlet end (91), one end is for giving vent to anger end (92), heat pump evaporator (4) are installed in the end (92) of giving vent to anger of fume chamber (9), fume chamber (9) inlet end (91) install air conditioner evaporator (93), air conditioner evaporator (93) are connected with central air conditioning system (94), be provided with ventilation unit in fume chamber (9), be sent to heat pump evaporator (4) one end with the air of air conditioner evaporator (93) one end.
2. The system of claim 1, wherein the system comprises: the ventilating device is a fan (95) arranged on the heat pump evaporator (4) and the air conditioner evaporator (93), the air flow directions of the fans are all arranged at one end of the heat pump evaporator (4), air flow is forced to enter from an air inlet end (91) of the ventilating hood (9), and after heat exchange with the air conditioner evaporator (93), the air flow exchanges heat with the heat pump evaporator (4) and is finally discharged from an air outlet end (92).
3. The system of claim 1, wherein the system comprises: and a bypass pipe (96) is connected in parallel to the inlet end (91) and the outlet end (92) of the fume hood (9), and a gate valve (97) and a return air fan (98) are arranged on the bypass pipe (96).
4. The system of claim 1, wherein the system comprises: and an air inlet temperature detector (911) and an air outlet temperature detector (921) are respectively arranged on the air inlet end (91) and the air outlet end (92) of the ventilation cabinet (9) and are electrically connected with the control system.
5. The system of claim 4, wherein the system comprises: and when the inlet air temperature detector detects that the temperature is higher than the temperature detected by the outlet air temperature detector, the gate valve is opened.
6. The system of claim 1, wherein the system comprises: and an air return temperature probe (71) is arranged at the inlet end of the gas-liquid separator (7).
7. The system of claim 1, wherein the system comprises: the inlet end of the heat pump evaporator (4) is provided with a temperature probe (41) after throttling, and the middle part of the heat pump evaporator (4) is provided with an evaporator temperature probe (42).
8. The system of claim 1, wherein the system comprises: and an exhaust temperature probe (11) is arranged at the exhaust end of the enhanced vapor injection compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921246547.4U CN210801689U (en) | 2019-08-03 | 2019-08-03 | Energy optimization system for central air conditioner and heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921246547.4U CN210801689U (en) | 2019-08-03 | 2019-08-03 | Energy optimization system for central air conditioner and heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210801689U true CN210801689U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921246547.4U Active CN210801689U (en) | 2019-08-03 | 2019-08-03 | Energy optimization system for central air conditioner and heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210801689U (en) |
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2019
- 2019-08-03 CN CN201921246547.4U patent/CN210801689U/en active Active
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