CN113531868A - Total heat recovery module unit and application method thereof - Google Patents
Total heat recovery module unit and application method thereof Download PDFInfo
- Publication number
- CN113531868A CN113531868A CN202110849266.3A CN202110849266A CN113531868A CN 113531868 A CN113531868 A CN 113531868A CN 202110849266 A CN202110849266 A CN 202110849266A CN 113531868 A CN113531868 A CN 113531868A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- way valve
- side heat
- water
- compressor
- 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.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 239000003507 refrigerant Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000005057 refrigeration Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 13
- 238000010257 thawing Methods 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to a total heat recovery module unit and an application method thereof, wherein the module unit comprises a refrigerant circulation loop consisting of a compressor, a four-way valve I, a four-way valve II, a gas-liquid separator, a wind side heat exchanger, a water side heat exchanger I, a water side heat exchanger II and an economizer; the compressor is an enhanced vapor injection compressor; the economizer is a plate heat exchanger; the water path of the water side heat exchanger I is connected to a user; and the water path of the water side heat exchanger II is connected with the cooling tower. The invention can adopt water to refrigerate in summer, improve energy efficiency, and can automatically switch to air-cooled refrigeration when the cooling water side is abnormal, thereby effectively improving the applicability and reliability. Meanwhile, the air source can be used for heating in winter, ultralow-temperature heating is realized, and the operation efficiency and the energy-saving effect of the unit are improved.
Description
Technical Field
The invention relates to an application method of an air conditioner, in particular to an application method of a module unit, and specifically relates to a total heat recovery module unit and an application method thereof.
Background
At present, the best scheme for heating in winter in the north is an air source heat pump. For industrial and commercial buildings, heating is needed in winter, and refrigeration is needed in summer. Therefore, in order to realize energy conservation and emission reduction, a water-cooling screw unit is mostly adopted for refrigeration, so that the efficiency is higher, and meanwhile, an air source heat pump is adopted for heating. However, the combination causes too high initial investment and affects the popularization of the product. Moreover, the combination form is not beneficial to heat recovery and energy conservation and environmental protection.
Therefore, improvements are needed to better meet market demands.
Disclosure of Invention
The invention aims to provide an efficient and energy-saving module unit and an application method thereof, aiming at the defects of the prior art, the module unit can be automatically switched between a water cooling host and an air cooling host, the applicability and the reliability of the unit are improved, the refrigeration effect can be improved through full heat recovery, and the ultralow temperature heating is realized.
The technical scheme of the invention is as follows:
a total heat recovery module unit comprises a compressor, a four-way valve I, a four-way valve II, a gas-liquid separator, a wind side heat exchanger, a water side heat exchanger I, a water side heat exchanger II and a plate heat exchanger; the compressor is an enhanced vapor injection compressor; an exhaust port and an air suction port of the compressor are respectively connected with the D end of the four-way valve I and the outlet of the gas-liquid separator; the C end, the S end and the E end of the four-way valve I are respectively connected with the D end of the four-way valve II, the inlet of the gas-liquid separator and the second end of the water side heat exchanger II; the C end, the S end and the E end of the four-way valve II are respectively connected with the first end of the air side heat exchanger, the inlet of the gas-liquid separator and the first end of the refrigerant of the water side heat exchanger I; the second end of the wind side heat exchanger is connected to a port f4 of the plate heat exchanger after passing through a throttling assembly I; a second end of a refrigerant of the water side heat exchanger I is connected to an f2 port of the plate heat exchanger after passing through a throttling component II; a first end of a refrigerant of the water side heat exchanger II is connected to an f2 port of the plate heat exchanger after passing through the electromagnetic valve assembly; an electronic expansion valve III is arranged between the f4 port and the f1 port of the plate heat exchanger; the water path of the water side heat exchanger I is connected to a user; and the water path of the water side heat exchanger II is connected with the cooling tower.
Further, the throttling component I comprises an electronic expansion valve I and a one-way valve I which are connected in parallel; the throttling component II comprises an electronic expansion valve II and a one-way valve II which are mutually connected in parallel; the electromagnetic valve assembly comprises an electromagnetic valve and a one-way valve III which are connected in parallel.
An application method of a total heat recovery module unit comprises the following processes:
1) when the air conditioner is used for refrigerating,
1.1) the unit is in a default optimal operation water refrigeration mode, and at the moment, a DE end and a CS end of a four-way valve I are respectively conducted; the DC end and the ES end of the four-way valve II are respectively conducted; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: a compressor exhaust port, a DE end of a four-way valve I, a water side heat exchanger II, a throttling assembly II, a water side heat exchanger I, an ES end of the four-way valve II, a gas-liquid separator and a compressor suction port; a water channel of the water side heat exchanger I generates cold water for refrigeration of a user side;
1.2) detecting the outlet water temperature T2 of the water side heat exchanger II; meanwhile, detecting the water outlet flow P2 of the water side heat exchanger II;
1.3) if T2 is more than T or P2 is less than P, then the next step is carried out; otherwise, keeping the current operation; wherein T is a set temperature; p is set water flow;
1.4) switching to an air-cooled refrigeration mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: an exhaust port of the compressor, a DC end of a four-way valve I, a DC end of a four-way valve II, a wind side heat exchanger and the like are divided into two paths, wherein one path is an electronic expansion valve III, a plate type heat exchanger f4f3 port and a compressor air supplement port; the other path is as follows: a port f1f2 of the plate heat exchanger, a throttling component II, a water side heat exchanger I, an ES end of a four-way valve II, a gas-liquid separator and a compressor suction port; a water channel of the water side heat exchanger I generates cold water for refrigeration of a user side;
2) when the water heater is used for heating,
2.1) operating an air cooling and heating mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DE end and the CS end of the four-way valve II are respectively communicated; the throttling component I and the electronic expansion valve III both play a throttling role; the refrigerant flow direction is as follows: the compressor exhaust port, the DC end of the four-way valve I, the DE end of the four-way valve II, the water side heat exchanger I, and the plate type heat exchanger f2f1 are divided into two paths, wherein one path is as follows: an electronic expansion valve III, a plate heat exchanger f4f3 port, a compressor air supplement port; the other path is as follows: the air conditioner comprises a throttling assembly I, a wind side heat exchanger, a CS end of a four-way valve II, a gas-liquid separator and a compressor air suction port; a water channel of the water side heat exchanger I generates hot water for heating at a user side;
2.2) operating a heating defrosting mode, wherein at the moment, a DC end and an ES end of the four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the electromagnetic valve component is conducted; the refrigerant flow direction is as follows: a compressor exhaust port, a DC end of a four-way valve I, a DC end of a four-way valve II, an air side heat exchanger, a plate type heat exchanger f1f2, a solenoid valve assembly, a water side heat exchanger II, an ES end of the four-way valve I, a gas-liquid separator and a compressor suction port; and the air side heat exchanger performs defrosting through a high-temperature refrigerant.
The invention has the beneficial effects that:
the invention has reasonable design and convenient control, can adopt water-water refrigeration in summer to improve the energy efficiency, and can automatically switch to air-cooled refrigeration when the cooling water side is abnormal, thereby improving the applicability and the reliability of the invention. Meanwhile, the air source can be used for heating in winter, ultralow-temperature heating is realized, and the service efficiency of the unit is improved.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Wherein, 1-compressor; 2-four-way valve I; 3-four-way valve II; 4-a wind side heat exchanger; 5-a throttling component I; 51-electronic expansion valve I; 52-one-way valve I; 6-water side heat exchanger I; 7-a plate heat exchanger; 71-electronic expansion valve III; 8-a throttling component II; 81-electronic expansion valve II; 82-one-way valve II; (ii) a 9-a solenoid valve assembly; 91-an electromagnetic valve; 92-one-way valve III; 10-water side heat exchanger II; 11-a gas-liquid separator; 12-a cooling tower; 13-a user; 14-balance tank.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1.
A total heat recovery module unit comprises a compressor 1, a four-way valve I2, a four-way valve II3, a gas-liquid separator 11, a wind side heat exchanger 4, a water side heat exchanger I6, a water side heat exchanger II10, a plate type heat exchanger 7 and the like. The compressor 1 is an enhanced vapor injection compressor.
The exhaust port and the suction port of the compressor 1 are respectively connected with the D end of the four-way valve I2 and the outlet of the gas-liquid separator 11; the C end, the S end and the E end of the four-way valve I2 are respectively connected with the D end of the four-way valve II3, the inlet of the gas-liquid separator 11 and the second end of the water-side heat exchanger II 10; the C end, the S end and the E end of the four-way valve II3 are respectively connected with the first end of the wind side heat exchanger 4, the inlet of the gas-liquid separator 11 and the first end of the refrigerant of the water side heat exchanger I6; the second end of the wind side heat exchanger 4 is connected to the f4 port of the plate heat exchanger 7 after passing through a throttling assembly I5; a second end of the refrigerant of the water side heat exchanger I6 passes through a throttling assembly II8 and then is connected to an f2 port of the plate heat exchanger 7; a first end of a refrigerant of the water side heat exchanger II10 is connected to a port f2 of the plate heat exchanger 7 after passing through an electromagnetic valve assembly 9; an electronic expansion valve III71 is arranged between the f4 port and the f1 port of the plate heat exchanger 7.
The water path of the water side heat exchanger I6 is connected to a user, and the produced cold water or hot water is conveyed to the user side for subsequent cooling or heating.
The water path of the water side heat exchanger II10 is connected with the cooling tower 12, and cold water generated by the cooling tower can be used for heat dissipation and heat exchange of the refrigerant flowing through the water side heat exchanger II.
The throttling assembly I5 comprises an electronic expansion valve I51 and a one-way valve I52 which are connected in parallel; the throttling assembly II8 comprises an electronic expansion valve II81 and a one-way valve II82 which are connected in parallel; the solenoid valve assembly 9 comprises a solenoid valve 91 and a one-way valve III92 which are connected in parallel; therefore, the flow direction of the refrigerant flowing through the throttling assembly or the electromagnetic valve assembly can be conveniently controlled.
Filters are arranged between the throttling assembly I5 and the wind side heat exchanger 4, between the throttling assembly II8 and the water side heat exchanger I6 and between the plate type heat exchanger 7 and the electromagnetic valve assembly 9, so that the refrigerant is filtered, and impurities and the like in the refrigerant are removed.
A balance tank 14 is also arranged between the electromagnetic valve assembly 9 and the water side heat exchanger II10, and the flow of the refrigerant can be adjusted.
The invention relates to an application method of a total heat recovery module unit, which comprises the following processes:
1) during refrigeration, the refrigeration mode comprises a water refrigeration mode and an air cooling refrigeration mode;
1.1) the unit is in a default optimal operation water refrigeration mode, and at the moment, a DE end and a CS end of a four-way valve I are respectively conducted; the DC end and the ES end of the four-way valve II are respectively conducted; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: a compressor exhaust port, a DE end of a four-way valve I, a water side heat exchanger II, a one-way valve III, an electronic expansion valve II, a water side heat exchanger I, an ES end of the four-way valve II, a gas-liquid separator and a compressor suction port;
in the mode, a water path of the water side heat exchanger I generates air conditioner cold water for refrigeration of a user side; the water side heat exchanger II exchanges heat with a refrigerant through cooling water, and meanwhile, the cooling tower cools the cooling water, so that the refrigeration efficiency of the unit is improved, and the energy is saved;
1.2) detecting the outlet water temperature T2 of the water side heat exchanger II; meanwhile, detecting the water outlet flow P2 of the water side heat exchanger II;
1.3) if T2 is greater than T or P2 is less than P, judging that the water path of the water side heat exchanger II is in fault, stopping the water-water heat exchange mode, and turning to the next step; otherwise, keeping the current operation; wherein T is a set temperature; p is set water flow; the waterway fault can be a water pump fault, a water flow abnormity or a cooling tower fan fault and the like;
1.4) switching to an air-cooled refrigeration mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: an exhaust port of the compressor, namely a DC end of a four-way valve I, a DC end of a four-way valve II, a wind side heat exchanger, is divided into two paths, and one path is an electronic expansion valve III, a plate type heat exchanger f4f3 port and a compressor air supplement port; the other path is as follows: a port f1f2 of the plate heat exchanger, an electronic expansion valve II, a water side heat exchanger I, an ES end of a four-way valve II, a gas-liquid separator and a compressor suction port;
in the mode, a water path of the water side heat exchanger I generates air conditioner cold water for refrigeration of a user side; the air side heat exchanger exchanges heat between the refrigerant and air to ensure normal operation of refrigeration; two paths of refrigerants in the plate heat exchanger exchange heat with each other, so that heat recovery is realized, and the operation efficiency and the energy-saving effect of the unit are improved; the switching action can be completed by a program arranged in the unit;
2) when heating, the air-cooling heating mode and the heating defrosting mode are included;
2.1) operating an air cooling and heating mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DE end and the CS end of the four-way valve II are respectively communicated; the throttling component I and the electronic expansion valve III both play a throttling role; the refrigerant flow direction is as follows: the compressor exhaust port, the DC end of the four-way valve I, the DE end of the four-way valve II, the water side heat exchanger I, the check valve II and the plate type heat exchanger f2f1 are divided into two paths, wherein one path is as follows: an electronic expansion valve III, a plate heat exchanger f4f3 port, a compressor air supplement port; the other path is as follows: an electronic expansion valve I, a wind side heat exchanger, a CS end of a four-way valve II, a gas-liquid separator and a compressor suction port;
in the mode, a water channel of the water side heat exchanger I generates hot water for heating at a user side; the air side heat exchanger exchanges heat between the refrigerant and air to ensure normal heating operation; the plate heat exchanger can realize heat recovery, improve the unit operation efficiency and energy-saving effect, and realize ultralow temperature heating;
2.2) operating a heating defrosting mode, wherein at the moment, a DC end and an ES end of the four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the electromagnetic valve component is conducted; the refrigerant flow direction is as follows: a compressor exhaust port, a DC end of a four-way valve I, a DC end of a four-way valve II, an air side heat exchanger, a one-way valve I, a plate type heat exchanger f1f2, an electromagnetic valve, a water side heat exchanger II, an ES end of the four-way valve I, a gas-liquid separator and a compressor suction port;
in the mode, the wind side heat exchanger heats frosting on the wind side heat exchanger through a high-temperature refrigerant to realize defrosting; the water side heat exchanger II exchanges heat with a refrigerant through cooling water, and meanwhile, the cooling tower cools the cooling water to ensure normal defrosting.
According to the invention, two groups of water side heat exchangers and one group of air side heat exchangers are arranged, and the water paths of the two groups of water side heat exchangers are respectively connected with a user and the cooling tower, so that water cooling can be adopted in summer, the energy efficiency is improved, and the air cooling type refrigeration can be automatically switched to when the cooling water side is abnormal, so that the applicability and the reliability of the air cooling type refrigeration are effectively improved. Meanwhile, the air source can be used for heating in winter, ultralow-temperature heating is realized, and the operation efficiency and the energy-saving effect of the unit are improved.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (3)
1. A total heat recovery module unit comprises a compressor, a four-way valve I, a four-way valve II, a gas-liquid separator, a wind side heat exchanger, a water side heat exchanger I, a water side heat exchanger II and a plate heat exchanger; the method is characterized in that the compressor is an enhanced vapor injection compressor; an exhaust port and an air suction port of the compressor are respectively connected with the D end of the four-way valve I and the outlet of the gas-liquid separator; the C end, the S end and the E end of the four-way valve I are respectively connected with the D end of the four-way valve II, the inlet of the gas-liquid separator and the second end of the water side heat exchanger II; the C end, the S end and the E end of the four-way valve II are respectively connected with the first end of the air side heat exchanger, the inlet of the gas-liquid separator and the first end of the refrigerant of the water side heat exchanger I; the second end of the wind side heat exchanger is connected to a port f4 of the plate heat exchanger after passing through a throttling assembly I; a second end of a refrigerant of the water side heat exchanger I is connected to an f2 port of the plate heat exchanger after passing through a throttling component II; a first end of a refrigerant of the water side heat exchanger II is connected to an f2 port of the plate heat exchanger after passing through the electromagnetic valve assembly; an electronic expansion valve III is arranged between the f4 port and the f1 port of the plate heat exchanger; the water path of the water side heat exchanger I is connected to a user; and the water path of the water side heat exchanger II is connected with the cooling tower.
2. The total heat recovery module unit according to claim 1, wherein the throttling assembly I comprises an electronic expansion valve I and a check valve I connected in parallel with each other; the throttling component II comprises an electronic expansion valve II and a one-way valve II which are mutually connected in parallel; the electromagnetic valve assembly comprises an electromagnetic valve and a one-way valve III which are connected in parallel.
3. A method for using the total heat recovery module unit according to any one of claims 1 to 2, which comprises the following steps:
1) when the air conditioner is used for refrigerating,
1.1) the unit is in a default optimal operation water refrigeration mode, and at the moment, a DE end and a CS end of a four-way valve I are respectively conducted; the DC end and the ES end of the four-way valve II are respectively conducted; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: a compressor exhaust port, a DE end of a four-way valve I, a water side heat exchanger II, a throttling assembly II, a water side heat exchanger I, an ES end of the four-way valve II, a gas-liquid separator and a compressor suction port; a water channel of the water side heat exchanger I generates cold water for refrigeration of a user side;
1.2) detecting the outlet water temperature T2 of the water side heat exchanger II; meanwhile, detecting the water outlet flow P2 of the water side heat exchanger II;
1.3) if T2 is more than T or P2 is less than P, then the next step is carried out; otherwise, keeping the current operation; wherein T is a set temperature; p is set water flow;
1.4) switching to an air-cooled refrigeration mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the throttling component II plays a throttling role; the electromagnetic valve component is closed when power is lost; the refrigerant flow direction is as follows: an exhaust port of the compressor, a DC end of a four-way valve I, a DC end of a four-way valve II, a wind side heat exchanger and the like are divided into two paths, wherein one path is an electronic expansion valve III, a plate type heat exchanger f4f3 port and a compressor air supplement port; the other path is as follows: a port f1f2 of the plate heat exchanger, a throttling component II, a water side heat exchanger I, an ES end of a four-way valve II, a gas-liquid separator and a compressor suction port; a water channel of the water side heat exchanger I generates cold water for refrigeration of a user side;
2) when the water heater is used for heating,
2.1) operating an air cooling and heating mode, wherein at the moment, a DC end and an ES end of a four-way valve I are respectively conducted; the DE end and the CS end of the four-way valve II are respectively communicated; the throttling component I and the electronic expansion valve III both play a throttling role; the refrigerant flow direction is as follows: the compressor exhaust port, the DC end of the four-way valve I, the DE end of the four-way valve II, the water side heat exchanger I, and the plate type heat exchanger f2f1 are divided into two paths, wherein one path is as follows: an electronic expansion valve III, a plate heat exchanger f4f3 port, a compressor air supplement port; the other path is as follows: the air conditioner comprises a throttling assembly I, a wind side heat exchanger, a CS end of a four-way valve II, a gas-liquid separator and a compressor air suction port; a water channel of the water side heat exchanger I generates hot water for heating at a user side;
2.2) operating a heating defrosting mode, wherein at the moment, a DC end and an ES end of the four-way valve I are respectively conducted; the DC end and the ES section of the four-way valve II are respectively communicated; the electromagnetic valve component is conducted; the refrigerant flow direction is as follows: a compressor exhaust port, a DC end of a four-way valve I, a DC end of a four-way valve II, an air side heat exchanger, a plate type heat exchanger f1f2, a solenoid valve assembly, a water side heat exchanger II, an ES end of the four-way valve I, a gas-liquid separator and a compressor suction port; and the air side heat exchanger performs defrosting through a high-temperature refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849266.3A CN113531868A (en) | 2021-07-27 | 2021-07-27 | Total heat recovery module unit and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110849266.3A CN113531868A (en) | 2021-07-27 | 2021-07-27 | Total heat recovery module unit and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113531868A true CN113531868A (en) | 2021-10-22 |
Family
ID=78089148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110849266.3A Pending CN113531868A (en) | 2021-07-27 | 2021-07-27 | Total heat recovery module unit and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113531868A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201177411Y (en) * | 2008-02-03 | 2009-01-07 | 南京建贸制冷空调设备有限公司 | Water-cooling/ wind cooling -type integral heat pump units |
| CN201935471U (en) * | 2010-11-30 | 2011-08-17 | 广东欧科空调制冷有限公司 | Entire heat recovery type air cooling cold water machine set |
| CN209541217U (en) * | 2018-11-01 | 2019-10-25 | 南京天加环境科技有限公司 | One kind can air-cooled cold (heat) the water dispenser group of low temperature total heat recovery |
| CN110986406A (en) * | 2019-12-19 | 2020-04-10 | 依米康科技集团股份有限公司 | Multi-split VRV device for machine room, control method and system |
-
2021
- 2021-07-27 CN CN202110849266.3A patent/CN113531868A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201177411Y (en) * | 2008-02-03 | 2009-01-07 | 南京建贸制冷空调设备有限公司 | Water-cooling/ wind cooling -type integral heat pump units |
| CN201935471U (en) * | 2010-11-30 | 2011-08-17 | 广东欧科空调制冷有限公司 | Entire heat recovery type air cooling cold water machine set |
| CN209541217U (en) * | 2018-11-01 | 2019-10-25 | 南京天加环境科技有限公司 | One kind can air-cooled cold (heat) the water dispenser group of low temperature total heat recovery |
| CN110986406A (en) * | 2019-12-19 | 2020-04-10 | 依米康科技集团股份有限公司 | Multi-split VRV device for machine room, control method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155772B (en) | Cascaded ice-storage air conditioning system and method utilizing same to supply cold air for air conditioner | |
| CN204923448U (en) | Air-conditioning hot water system | |
| US20110259025A1 (en) | Heat pump type speed heating apparatus | |
| CN102901156B (en) | Frost preventing and removing system and frost preventing and removing method of heat pipe type air conditioner | |
| CN109990499B (en) | Gas heat pump air conditioning system without shutdown during defrosting | |
| CN101520219A (en) | All-year cold supply chiller with natural cooling function | |
| CN108224840A (en) | Heat pump air conditioning system and control method | |
| CN113776219B (en) | Air source heat pump, air conditioner and control method suitable for severe cold area | |
| CN208382621U (en) | A kind of air-source gas-fired heat pump unit | |
| CN114543387A (en) | Gas heat pump system capable of improving defrosting efficiency and control method thereof | |
| CN114777238A (en) | Cold and hot water unit of low-temperature gas heat pump | |
| CN113686022B (en) | Improved gas heat pump cold and hot water unit | |
| CN207963223U (en) | Heat pump air conditioning system | |
| CN112146301B (en) | Evaporative cold screw cold and hot water unit with total heat recovery | |
| CN211601182U (en) | Split type CO2Air source heat pump unit | |
| WO2024074064A1 (en) | Indirect multi-level waste heat recovery heat pump air-conditioning system, and control method therefor | |
| CN112880237A (en) | Solar auxiliary air source heat pump triple co-generation system | |
| CN110849019A (en) | Heat pump type air conditioning system and control method thereof | |
| CN203501363U (en) | Double-effect heat pump air conditioning unit | |
| CN113531868A (en) | Total heat recovery module unit and application method thereof | |
| CN113154547B (en) | New hierarchical heat recovery system that airs exhaust | |
| CN114198872B (en) | Machine room air conditioner, operation control method and device of machine room air conditioner | |
| CN213687346U (en) | Evaporation cold and hot pump unit | |
| CN210035967U (en) | Air source heat pump defrosting system | |
| CN211575589U (en) | Heat pump type air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211022 |
|
| RJ01 | Rejection of invention patent application after publication |