CN214332912U - Cascade air source high-temperature heat pump cooling and heating unit - Google Patents
Cascade air source high-temperature heat pump cooling and heating unit Download PDFInfo
- Publication number
- CN214332912U CN214332912U CN202120345170.9U CN202120345170U CN214332912U CN 214332912 U CN214332912 U CN 214332912U CN 202120345170 U CN202120345170 U CN 202120345170U CN 214332912 U CN214332912 U CN 214332912U
- Authority
- CN
- China
- Prior art keywords
- way valve
- condenser
- frequency compressor
- economizer
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides a cascade air source high temperature heat pump cooling and heating unit, which comprises a first loop and a second loop, wherein the first loop comprises a fixed frequency compressor, a first gas-liquid separator, a condenser and a heat exchanger; the first gas-liquid separator is connected with a fixed-frequency compressor; the condenser is connected with a fixed-frequency compressor; the heat exchanger is respectively connected with the first gas-liquid separator and the condenser; the second loop comprises a variable frequency compressor, a second gas-liquid separator, an evaporator, an economizer, a liquid storage device, a first four-way valve, a second four-way valve and a fan. The utility model discloses a cascade air source high temperature heat pump changes in temperature unit is through setting up first loop and second loop, realizes that the cascade heats, the conventionality heats and three kinds of modes of refrigeration in an equipment, and a tractor serves several purposes, and the cascade heats can be used to winter and heats with the hot water or hot-blast of obtaining higher temperature by force, compares solitary loop and can produce the hot water or hot-blast of higher temperature to satisfy the life demand.
Description
Technical Field
The utility model relates to a cascade air source high temperature heat pump changes in temperature unit.
Background
In order to ensure the indoor temperature in winter, a cooling and heating machine is usually adopted for heating, the existing cooling and heating machine can only independently heat, but in northern areas of China, because the outdoor temperature in winter is very low, the existing cooling and heating machine cannot prepare hot water or hot air with higher temperature in the environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a cascade air source high temperature heat pump changes in temperature unit, include:
a first loop comprising a fixed frequency compressor, a first gas-liquid separator, a condenser and a heat exchanger; the first gas-liquid separator is connected with the fixed-frequency compressor; the condenser is connected with the fixed-frequency compressor; the heat exchanger is respectively connected with the first gas-liquid separator and the condenser; and
the second loop comprises a variable frequency compressor, a second gas-liquid separator, an evaporator, an economizer, a liquid storage device, a first four-way valve, a second four-way valve and a fan; the variable frequency compressor is connected with a first interface of the first four-way valve; the second gas-liquid separator is respectively connected with the variable frequency compressor, a second interface of the first four-way valve and a first interface of the second four-way valve; the evaporator is connected with a third interface of the first four-way valve; the economizer is connected with the evaporator and the variable-frequency compressor respectively; the liquid storage device is respectively connected with the economizer, the heat exchanger and the condenser; a fourth interface of the first four-way valve is connected with a second interface of the second four-way valve; a third interface of the second four-way valve is connected with the heat exchanger; a fourth interface of the second four-way valve is connected with the condenser; the fan faces the evaporator.
In one or more embodiments, a dry filter is connected between the condenser and the heat exchanger, between the accumulator and the condenser, and between the economizer and the evaporator.
In one or more embodiments, an exhaust temperature sensor is connected between the fixed-frequency compressor and the condenser and between the variable-frequency compressor and a first interface of the first four-way valve; and air suction temperature sensors are connected between the first gas-liquid separator and the fixed-frequency compressor and between the second gas-liquid separator and the variable-frequency compressor.
In one or more embodiments, a main expansion valve is connected between the condenser and the heat exchanger and between the evaporator and the economizer.
In one or more embodiments, a main expansion valve connected between the evaporator and the economizer is connected in parallel with an unloading valve.
In one or more embodiments, the second loop further comprises an auxiliary expansion valve; one end of the auxiliary expansion valve is connected between the liquid storage device and the economizer, and the other end of the auxiliary expansion valve is connected with the economizer.
In one or more embodiments, a temperature sensor is disposed on the evaporator.
In one or more embodiments, a check valve is connected between the economizer and the inverter compressor and between the heat exchanger and the accumulator.
In one or more embodiments, a spray temperature sensor is coupled to each of the economizer inlet and economizer outlet.
In one or more embodiments, a pressure sensor is connected between the inverter compressor and the second gas-liquid separator.
The utility model has the advantages that: the utility model discloses a cascade air source high temperature heat pump changes in temperature unit is through setting up first loop and second loop, realizes that the cascade heats, the conventionality heats and three kinds of modes of refrigeration in an equipment, and a tractor serves several purposes, and the cascade heats can be used to winter and heats with the hot water or hot-blast of obtaining higher temperature by force, compares solitary loop and can produce the hot water or hot-blast of higher temperature to satisfy the life demand.
Drawings
Fig. 1 is a schematic structural diagram of the cascade air source high temperature heat pump cooling and heating unit in the embodiment of the present invention.
Detailed Description
The application scheme is further described below with reference to the accompanying drawings:
referring to fig. 1, the cascade air source high temperature heat pump cooling and heating unit of the present application includes a first loop 10 and a second loop 20; the first loop 10 is connected in an overlapping manner with the second loop 20. The first loop 10 comprises a fixed-frequency compressor 11, a first gas-liquid separator 12, a condenser 13 and a heat exchanger 14; the first gas-liquid separator 12 is connected with the fixed-frequency compressor 11; the condenser 13 is connected with the fixed-frequency compressor 11; the heat exchanger 14 is connected to the first gas-liquid separator 12 and the condenser 13, respectively. The second loop 20 comprises a variable frequency compressor 21, a second gas-liquid separator 22, an evaporator 23, an economizer 24, a liquid storage device 25, a first four-way valve 26, a second four-way valve 27 and a fan 28; the inverter compressor 21 is connected with a first interface of a first four-way valve 26; the second gas-liquid separator 22 is respectively connected with the variable frequency compressor 21, a second interface of the first four-way valve 26 and a first interface of the second four-way valve 27; the evaporator 23 is connected with a third interface of the first four-way valve 26; the economizer 24 is connected with the evaporator 23 and the inverter compressor 21 respectively; the liquid storage 25 is connected with the economizer 24, the heat exchanger 14 and the condenser 13 respectively; a fourth port of the first four-way valve 26 is connected with a second port of the second four-way valve 27; a third port of the second four-way valve 27 is connected with the heat exchanger 14; a fourth port of the second four-way valve 27 is connected with the condenser 13; the fan 28 faces the evaporator 23.
In specific application, the second loop 20 is independently started to realize independent heating or refrigeration, and the outlet water temperature can be controlled between 35 ℃ below zero and 55 ℃; when hot water or hot air with higher temperature is needed, the first loop 10 and the second loop 20 are opened simultaneously, so that the first loop 10 can absorb heat generated by the second loop 20 in a heat exchange manner, the heat released by the first loop 10 is further increased, and the outlet water temperature can reach 85 ℃ at most. In this embodiment, the evaporator 23 is a fin-tube evaporator 23, and the fin-tube evaporator 23 is efficient and compact and can improve heat exchange efficiency.
Preferably, a dry filter 30 is connected between the condenser 13 and the heat exchanger 14, between the accumulator 25 and the condenser 13, and between the economizer 24 and the evaporator 23. The filter drier 30 serves to filter impurities and ensure cleanliness in the loop.
Preferably, exhaust temperature sensors 40 are connected between the fixed-frequency compressor 11 and the condenser 13 and between the variable-frequency compressor 21 and a first interface of the first four-way valve 26; the suction temperature sensors 50 are connected between the first gas-liquid separator 12 and the fixed-frequency compressor 11, and between the second gas-liquid separator 22 and the inverter compressor 21. The discharge temperature sensor 40 and the suction temperature sensor 50 respectively detect the discharge temperature and the suction temperature of the fixed-frequency compressor 11 and the variable-frequency compressor 21, so that a user can conveniently know the working state of the equipment.
Further, needle valves are connected between the fixed frequency compressor 11 and the condenser 13, between the first gas-liquid separator 12 and the heat exchanger 14, between the variable frequency compressor 21 and a first port of the first four-way valve 26, and between the second gas-liquid separator 12 and a second port of the second four-way valve 27.
Furthermore, high-voltage switches are connected between the fixed-frequency compressor 11 and the condenser 13 and between the variable-frequency compressor 21 and a first interface of the first four-way valve 26; low-pressure switches are connected between the first gas-liquid separator 12 and the fixed-frequency compressor 11 and between the second gas-liquid separator 22 and the variable-frequency compressor 21.
Preferably, a main expansion valve 60 is connected between the condenser 13 and the heat exchanger 14 and between the evaporator 23 and the economizer 24. The main circuit expansion valve 60 prevents the evaporator 23 from being underutilized in area and knock.
Preferably, the main circuit expansion valve connected between the evaporator 23 and the economizer 24 is connected in parallel with an unloading valve 70. The unloading valve 70 is used for loop control and improving the service life of the compressor, and reducing power consumption.
Preferably, the second loop 20 also includes an auxiliary expansion valve 80; the bypass expansion valve 80 has one end connected between the accumulator 25 and the economizer 24 and the other end connected to the economizer 24. The bypass expansion valve 80 prevents underutilization of the economizer 24 area and knock.
Preferably, the evaporator 23 is provided with a temperature sensor 29. The temperature sensor 29 is used to detect the temperature of the evaporator 23 for easy understanding by a user.
Preferably, a check valve 210 is connected between the economizer 24 and the inverter compressor 21 and between the heat exchanger 14 and the accumulator 25. The check valve 210 allows the refrigerant to flow only from the economizer 24 to the inverter compressor 21 and the refrigerant to flow only from the heat exchanger 14 to the accumulator 25, avoiding backflow.
Preferably, spray temperature sensors 211 are connected to the inlet and outlet of the economizer 24, respectively. The liquid ejection temperature sensors 211 detect the liquid ejection temperatures at the inlet and outlet of the economizer 24, respectively.
Preferably, a pressure sensor 212 is connected between the inverter compressor 21 and the second gas-liquid separator 22. The pressure sensor 212 detects the pressure between the inverter compressor 21 and the second gas-liquid separator 22, thereby avoiding the danger of excessive pressure.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (10)
1. A cascade air source high temperature heat pump cooling and heating unit is characterized by comprising:
a first loop comprising a fixed frequency compressor, a first gas-liquid separator, a condenser and a heat exchanger; the first gas-liquid separator is connected with the fixed-frequency compressor; the condenser is connected with the fixed-frequency compressor; the heat exchanger is respectively connected with the first gas-liquid separator and the condenser; and
the second loop comprises a variable frequency compressor, a second gas-liquid separator, an evaporator, an economizer, a liquid storage device, a first four-way valve, a second four-way valve and a fan; the variable frequency compressor is connected with a first interface of the first four-way valve; the second gas-liquid separator is respectively connected with the variable frequency compressor, a second interface of the first four-way valve and a first interface of the second four-way valve; the evaporator is connected with a third interface of the first four-way valve; the economizer is connected with the evaporator and the variable-frequency compressor respectively; the liquid storage device is respectively connected with the economizer, the heat exchanger and the condenser; a fourth interface of the first four-way valve is connected with a second interface of the second four-way valve; a third interface of the second four-way valve is connected with the heat exchanger; a fourth interface of the second four-way valve is connected with the condenser; the fan faces the evaporator.
2. The stacked air source high temperature heat pump cooling and heating unit according to claim 1, wherein drying filters are connected between the condenser and the heat exchanger, between the accumulator and the condenser, and between the economizer and the evaporator.
3. The cascade air source high-temperature heat pump cooling and heating unit according to claim 1, wherein exhaust temperature sensors are connected between the constant-frequency compressor and the condenser and between the variable-frequency compressor and a first interface of the first four-way valve; and air suction temperature sensors are connected between the first gas-liquid separator and the fixed-frequency compressor and between the second gas-liquid separator and the variable-frequency compressor.
4. The cascade air source high temperature heat pump cooling and heating unit according to claim 1, wherein main expansion valves are connected between the condenser and the heat exchanger and between the evaporator and the economizer.
5. The cascade air source high temperature heat pump cooling and heating unit according to claim 4, wherein a main expansion valve connected between the evaporator and the economizer is connected in parallel with an unloading valve.
6. The cascade air source high temperature heat pump cooling and heating unit according to claim 1, wherein the second loop further comprises an auxiliary expansion valve; one end of the auxiliary expansion valve is connected between the liquid storage device and the economizer, and the other end of the auxiliary expansion valve is connected with the economizer.
7. The stacked air source high temperature heat pump cooling and heating unit according to claim 1, wherein a temperature sensor is provided on the evaporator.
8. The cascade air source high-temperature heat pump cooling and heating unit according to claim 1, wherein a one-way valve is connected between the economizer and the inverter compressor and between the heat exchanger and the liquid reservoir.
9. The cascade air source high temperature heat pump cooling and heating unit as claimed in claim 1, wherein the economizer is connected with a liquid spray temperature sensor at the inlet and the outlet respectively.
10. The cascade air source high-temperature heat pump cooling and heating unit according to claim 1, wherein a pressure sensor is connected between the inverter compressor and the second gas-liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120345170.9U CN214332912U (en) | 2021-02-05 | 2021-02-05 | Cascade air source high-temperature heat pump cooling and heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120345170.9U CN214332912U (en) | 2021-02-05 | 2021-02-05 | Cascade air source high-temperature heat pump cooling and heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214332912U true CN214332912U (en) | 2021-10-01 |
Family
ID=77885256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120345170.9U Active CN214332912U (en) | 2021-02-05 | 2021-02-05 | Cascade air source high-temperature heat pump cooling and heating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214332912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128581A (en) * | 2023-07-27 | 2023-11-28 | 浙江国祥股份有限公司 | Evaporation condensation variable frequency magnetic suspension multi-connected unit |
-
2021
- 2021-02-05 CN CN202120345170.9U patent/CN214332912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128581A (en) * | 2023-07-27 | 2023-11-28 | 浙江国祥股份有限公司 | Evaporation condensation variable frequency magnetic suspension multi-connected unit |
| CN117128581B (en) * | 2023-07-27 | 2024-06-07 | 浙江国祥股份有限公司 | Evaporation condensation variable frequency magnetic suspension multi-connected unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615836B (en) | A kind of screw total heat recovery air-cooled heat-pump air-conditioner group | |
| CN217004909U (en) | Cascade type air source heat pump hot water unit | |
| CN210569370U (en) | Low-temperature frequency conversion air source heat pump unit | |
| CN101221007A (en) | Air source heat pump hot water units | |
| CN214332912U (en) | Cascade air source high-temperature heat pump cooling and heating unit | |
| CN201177411Y (en) | Water-cooling/ wind cooling -type integral heat pump units | |
| CN107062607A (en) | Overlapping air energy liquid heating | |
| CN102767921A (en) | Double-way pre-cooling efficient heat pump device and control method thereof | |
| CN203572022U (en) | Air-energy heat pump | |
| CN210463643U (en) | CO2 double-stage frequency conversion air source heat pump hot water unit | |
| CN209042832U (en) | A kind of air energy heat pump defrosting system using recuperation of heat | |
| CN214333093U (en) | Overlapping formula air source heat pump set | |
| CN106969541A (en) | A kind of pair of thermal source dryer | |
| CN106352586A (en) | Double machine head heat source tower heat pump unit | |
| CN201740313U (en) | Multifunctional water source heat pump | |
| CN210624993U (en) | Ultra-low temperature frequency conversion two-combined-supply unit with refrigerant cooling function | |
| CN207180095U (en) | A kind of solar energy heating air-conditioning system | |
| CN103307817B (en) | A kind of vortex parallel Condensing units | |
| CN112378110A (en) | Energy-saving system for improving working efficiency of natural energy heat utilization system | |
| CN111735224A (en) | Refrigerating system suitable for multiple load working condition | |
| CN201803523U (en) | Full heat recovery five-mode heat pump device | |
| CN201532048U (en) | Air-conditioning device for heat pump | |
| CN206247522U (en) | A kind of trilogy supply air source heat pump system | |
| CN205669898U (en) | A kind of air-conditioning with heat recovery system | |
| CN105258390B (en) | A kind of control method of compensation double-source heat pump cold-hot wind air-conditioner set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 528000 103, building 7, CIMC intelligent manufacturing center, No. 15, shunye West Road, Xingtan town, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG ZHONGDE HAOTAI ENERGY EQUIPMENT CO.,LTD. Address before: 528325 No.6, building 1, No.1, science and technology zone, industrial park, Qixing community residents committee, Xingtan town, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG ZHONGDE HAOTAI ENERGY EQUIPMENT CO.,LTD. |