CN105202809A - Single-unit single-level transcritical carbon dioxide refrigeration/heat pump comprehensive experiment table - Google Patents
Single-unit single-level transcritical carbon dioxide refrigeration/heat pump comprehensive experiment table Download PDFInfo
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Abstract
The invention discloses a single-unit single-level transcritical carbon dioxide refrigeration/heat pump comprehensive experiment table. The single-unit single-level transcritical carbon dioxide refrigeration/heat pump comprehensive experiment table is composed of a water system and a refrigerant system and comprises a carbon dioxide gas compressor, a carbon dioxide oil separator, a refrigerant stop valve bank, first and second carbon dioxide shell-tube heat exchangers, first and second carbon dioxide finned tube exchangers, first and second electric heaters, first and second single-type air conditioners, first and second water pumps, first and second heat preservation water tanks, a carbon dioxide gas-liquid separator, a flowmeter set, a drying filter and the like. Switching among the systems can be achieved by controlling the on-off states of refrigerant stop valves in the refrigerant stop valve bank. An air-cooling refrigeration system, an air source heat pump, a water-cooling refrigeration system, an air source condensation heat recycling system, an air-cooling water chilling unit system, a water source heat pump, a water-cooling water chilling unit system and a water source condensation heat recycling system are simulated by operating the on-off states of the corresponding refrigerant stop valves.
Description
Technical field
The present invention relates to a kind of heat pump, particularly relate to a kind of unit single-stage critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table.
Background technology
At present, the critical-cross carbon dioxide experimental system that colleges and universities use is all simple heat pump mostly, and its function ratio is more single, and the utilization rate of equipment is lower, is virtually just causing the huge wasting of resources; Testing stand that simultaneously disperse, function singleness can take larger laboratory area; Each colleges and universities are badly in need of the heat pump of function singleness to integrate, and to reduce floor space, improve the utilization rate of equipment, reduce the waste of school in experiment, promote the comprehensive utilization ratio of school experiment equipment.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of unit single-stage critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table, cooling condition and heating condition can be simulated, there is the functions such as air-cooled refrigeration system, air source heat pump, water cooled refrigeration system, air-source reclaiming system for condensation heat, air-cooled liquid chillers system, water resource heat pump, water-cooled cold water machine set system and water source reclaiming system for condensation heat.
In order to solve the problems of the technologies described above, the technical scheme that a kind of unit single-stage of the present invention critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table is achieved is:
Comprise carbon-dioxide gas compressor, carbon dioxide oil eliminator, refrigerant stop valve group, carbon dioxide shell-and-tube heat exchanger one, carbon dioxide shell-and-tube heat exchanger two, carbon dioxide finned tube exchanger one, carbon dioxide finned tube exchanger two, electric heater one, electric heater two, single entry air conditioner one, single entry air conditioner two, water pump one, water pump two, first attemperater, the second attemperater, carbon dioxide gas-liquid separator, flowmeter group, device for drying and filtering and choke valve; Described refrigerant stop valve group comprises four refrigerant stop valves, i.e. refrigerant stop valve 1, refrigerant stop valve 25, refrigerant stop valve 3 20 and refrigerant stop valve 4 22, and the installation site of described refrigerant stop valve is all in the refrigerant import department of heat exchanger;
Described carbon-dioxide gas compressor 1 have 1 export 3., No. 1 import 1. with No. 2 imports 2.;
Described carbon dioxide oil eliminator 2 have 1 import 3., No. 1 outlet 1. with No. 2 outlet 2.;
Described carbon dioxide shell-and-tube heat exchanger 1 and carbon dioxide shell-and-tube heat exchanger 2 21 have respectively 1 refrigerant import 1., 1 refrigerant exit 2., 1 water inlet 3. with 1 water out 4.;
3. 3. the outlet of described carbon-dioxide gas compressor 1 connect the air inlet of carbon dioxide oil eliminator 2, No. 1 import 1. by the oil return opening of valve 3 and carbon dioxide oil eliminator 2 that is No. 1 export and be 1. connected, 2. No. 2 imports connect the exhaust outlet of carbon dioxide gas-liquid separator 26;
3. 3. the air inlet of described carbon dioxide oil eliminator 2 connect the exhaust outlet of carbon-dioxide gas compressor 1; 1. 1. No. 1 outlet be connected with oil return opening i.e. No. 1 import of carbon-dioxide gas compressor 1 by valve 3; 1. 2. No. 2 outlets of carbon dioxide oil eliminator 2 be connected with the import of carbon dioxide finned tube exchanger 1 with carbon dioxide shell-and-tube heat exchanger 1 refrigerant with refrigerant stop valve 25 respectively by refrigerant stop valve 1;
2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve 1; The outlet of described refrigerant stop valve 1 is connected with the import of carbon dioxide finned tube exchanger 1; The outlet of described carbon dioxide finned tube exchanger connects the import of flowmeter 2 13; The outlet of described flowmeter 2 13 connects the import of device for drying and filtering 14; The outlet of described device for drying and filtering 14 connects the import of magnetic valve 15; The outlet of described magnetic valve 15 connects the import of choke valve 16; The outlet of described choke valve 16 connects the import of refrigerant stop valve 4 22; The outlet of described refrigerant stop valve 4 22 connects the import of carbon dioxide finned tube exchanger 2 25; The outlet of described carbon dioxide finned tube exchanger 2 25 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
1. the refrigerant import of described carbon dioxide shell-and-tube heat exchanger 1 is exported by refrigerant stop valve 25 and carbon dioxide oil eliminator 2 No. 2 and is 2. connected; 2. refrigerant exit connects the import of flowmeter 2 13; 3. cooling water inlet is connected with the first attemperater 12 by water pump 1; 4. the outlet of cooling water connects the import of flowmeter 1;
The delivery port of described first attemperater 12 is connected with the import of water pump 1; 3. the discharge outlet of described water pump 10 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 1 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 1 shell-side connects the import of flowmeter 1; Described flowmeter 1 is connected with the water inlet of the first attemperater 12;
1. the refrigerant import of described carbon dioxide shell-and-tube heat exchanger 2 21 is connected with choke valve 16 by refrigerant stop valve 3 20; 2. refrigerant exit connects the air inlet of carbon dioxide gas-liquid separator 26; 3. water inlet is connected with the second attemperater 17 by water pump 2 18; 4. delivery port connects the import of flowmeter 3 19;
The outlet of described choke valve 16 connects the import of refrigerant stop valve 3 20; 1. the outlet of described refrigerant stop valve 3 20 connects the import of the refrigerant of carbon dioxide shell-and-tube heat exchanger 2 21; 2. the outlet of described carbon dioxide shell-and-tube heat exchanger 2 21 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
The delivery port of described second attemperater 17 is connected with the import of water pump 2 18; 3. the discharge outlet of described water pump 18 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 2 21 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 2 21 shell-side connects the import of flowmeter 3 19; Described flowmeter 3 19 is connected with the water inlet of the second attemperater 17.
Wherein single entry air conditioner 1, electric heater 1 and carbon dioxide finned tube exchanger 1 are installed in same keeping warmth space; Single entry air conditioner 2 23, electric heater 2 24 and carbon dioxide finned tube exchanger 2 25 are installed in another keeping warmth space.
The switching between different experiments state is carried out by the on off state controlling refrigerant stop valve in refrigerant stop valve group; Simulated reservoir temperature is made to keep constant by controlling single entry air conditioner 1, single entry air conditioner 2 23, electric heater 1 and electric heater 2 24; According to the difference of system experimentation object, simulate cooling condition and heating condition by controlling single entry air conditioner 1, single entry air conditioner 2 23, electric heater 1, electric heater 2 24, first attemperater 12 and the second attemperater 17; Described carbon dioxide finned tube exchanger 1, carbon dioxide finned tube exchanger 2 25, carbon dioxide shell-and-tube heat exchanger 1 and carbon dioxide shell-and-tube heat exchanger 2 21 are for realizing simulation air cooling refrigeration system, water cooled refrigeration system, air-cooled liquid chillers system, water-cooled cold water machine set system, air source heat pump system, air-source reclaiming system for condensation heat, water source heat pump system and water source reclaiming system for condensation heat.
On the other hand, a kind of unit single-stage of the present invention critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table utilizes above-mentioned Novel multifunctional heat pump, Teat pump boiler and refrigeration unit experimental bench to switch between following system, in order to simulate cooling condition and heating condition.
1) air cooling refrigeration system (air source heat pump): close refrigerant stop valve 25 and refrigerant stop valve 3 20, opens refrigerant stop valve 1 and refrigerant stop valve 4 22;
2) water cooled refrigeration system (air-source reclaiming system for condensation heat): close refrigerant stop valve 1 and refrigerant stop valve 3 20, opens refrigerant stop valve 25 and refrigerant stop valve 4 22;
3) air-cooled liquid chillers system (water source heat pump system): close refrigerant stop valve 25 and refrigerant stop valve 4 22, opens refrigerant stop valve 1 and refrigerant stop valve 3 20;
4) water-cooled cold water machine set system (water source reclaiming system for condensation heat): close refrigerant stop valve 1 and refrigerant stop valve 4 22, opens refrigerant stop valve 25 and refrigerant stop valve 3 20;
The switching of described refrigeration, heating condition mainly through controlling single entry air-conditioner set and electric heater group regulates simulated reservoir temperature, thus realizes it and mutually switches.
Described valve 3 is chosen according to the object of experiment; Described various operating mode, valve 3 should open and close according to the number of lubricants capacity in carbon-dioxide gas compressor 1, to ensure carbon-dioxide gas compressor 1 work normally and efficiently.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention overcomes above-mentioned shortcoming, and the present invention has 2 independently water systems, can realize multi-form heat pump, water heater and refrigeration unit system.Can realize simulating the different system such as air cooling refrigeration, water cooled refrigeration, air-cooled liquid chillers, water-cooled cold water unit, air source heat pump, air-source reclaiming system for condensation heat, water resource heat pump and water source condensing units by the switching of corresponding refrigerant stop valve.
Accompanying drawing explanation
Fig. 1 is a kind of unit single-stage of the present invention critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table schematic diagram;
Fig. 2 is the systematic schematic diagram of air cooling refrigeration and air source heat pump;
Fig. 3 is the systematic schematic diagram of water cooled refrigeration and air-source condensing units;
Fig. 4 is the schematic diagram of air-cooled liquid chillers and water source heat pump system;
Fig. 5 is the schematic diagram of water-cooled cold water machine set system and water source reclaiming system for condensation heat.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
As shown in Figure 1, the present invention is a kind of unit single-stage critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table, comprise carbon-dioxide gas compressor 1, carbon dioxide oil eliminator 2, valve 3, refrigerant stop valve 1, refrigerant stop valve 25, single entry air conditioner 1, electric heater 1, carbon dioxide finned tube exchanger 1, carbon dioxide shell-and-tube heat exchanger 1, water pump 1, flowmeter 1, first attemperater 12, flowmeter 2 13, device for drying and filtering 14, magnetic valve 15, choke valve 16, second attemperater 17, water pump 2 18, flowmeter 3 19, refrigerant stop valve 3 20, carbon dioxide shell-and-tube heat exchanger 2 21, refrigerant stop valve 4 22, single entry air conditioner 2 23, electric heater 2 24, carbon dioxide finned tube exchanger 2 25, carbon dioxide gas-liquid separator 26, described carbon-dioxide gas compressor 1 have 1 export 3., No. 1 import 1. with No. 2 imports 2., described carbon dioxide oil eliminator 2 have 1 import 3., No. 1 outlet 1. with No. 2 outlet 2., described carbon dioxide shell-and-tube heat exchanger 1 and carbon dioxide shell-and-tube heat exchanger 2 21 have respectively 1 refrigerant import 1., 1 refrigerant exit 2., 1 water inlet 3. with 1 water out 4.,
Described refrigerant stop valve group comprises refrigerant stop valve 1, refrigerant stop valve 25, refrigerant stop valve 3 20 and refrigerant stop valve 4 22; Wherein: the outlet that described refrigerant stop valve 1 is connected to carbon dioxide oil eliminator 2 is 2. and between the import of carbon dioxide finned tube exchanger 1; The outlet that described refrigerant stop valve 25 is connected to carbon dioxide oil eliminator 2 is 2. and between the import 1. of carbon dioxide shell-and-tube heat exchanger 1 refrigerant; Described refrigerant stop valve 3 20 is connected to choke valve 16 and exports between the import 1. of carbon dioxide shell-and-tube heat exchanger 2 21 refrigerant; Described refrigerant stop valve 4 22 is connected to choke valve 16 and exports between the import of carbon dioxide finned tube exchanger 2 25 refrigerant.
According to the difference of experiment purpose, by controlling the on off state of refrigerant stop valve in refrigerant stop valve group and regulating single entry air conditioner 1, single entry air conditioner 2 23, electric heater 1 and electric heater 2 24 to simulate cooling condition and heating condition; Described carbon dioxide finned tube exchanger 1, carbon dioxide finned tube exchanger 2 25, carbon dioxide shell-and-tube heat exchanger 1 and carbon dioxide shell-and-tube heat exchanger 2 21 simulate the different system such as air cooling refrigeration, water cooled refrigeration, air-cooled liquid chillers, water-cooled cold water unit, air source heat pump, air-source reclaiming system for condensation heat, water resource heat pump and water source condensing units for realizing.
Describe in detail below in conjunction with accompanying drawing and utilize above-mentioned a kind of unit single-stage critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table, realize switching between following system, in order to simulate kinds of experiments.
One, the system of air cooling refrigeration and air source heat pump: as shown in Figure 2, closes refrigerant stop valve 25 and refrigerant stop valve 3 20, opens refrigerant stop valve 1 and refrigerant stop valve 4 22.
3. 3. the exhaust outlet of described carbon-dioxide gas compressor 1 be connected with the import of carbon dioxide oil eliminator 2, and 1. the oil return opening of carbon-dioxide gas compressor 1 i.e. No. 1 import is exported by valve 3 and carbon dioxide oil eliminator No. 1 and be 1. connected; 2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve 1; The outlet of described refrigerant stop valve 1 is connected with the import of carbon dioxide finned tube exchanger 1; The outlet of described carbon dioxide finned tube exchanger connects the import of flowmeter 2 13; The outlet of described flowmeter 2 13 connects the import of device for drying and filtering 14; The outlet of described device for drying and filtering 14 connects the import of magnetic valve 15; The outlet of described magnetic valve 15 connects the import of choke valve 16; The outlet of described choke valve 16 connects the import of refrigerant stop valve 4 22; The outlet of described refrigerant stop valve 4 22 connects the import of carbon dioxide finned tube exchanger 2 25; The outlet of described carbon dioxide finned tube exchanger 2 25 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
Described valve 3 choose and keying is determined on a case-by-case basis;
Described circulation can experimentally object difference and respectively as air cooling refrigeration system and air source heat pump system.
Two, the system of water cooled refrigeration and air-source condensing units: as shown in Figure 3, closes refrigerant stop valve 1 and refrigerant stop valve 3 20, opens refrigerant stop valve 25 and refrigerant stop valve 4 22.
Coolant system: 3. 3. the exhaust outlet of described carbon-dioxide gas compressor 1 be connected with the import of carbon dioxide oil eliminator 2,1. the oil return opening of carbon-dioxide gas compressor 1 i.e. No. 1 import is exported by valve 3 and carbon dioxide oil eliminator No. 1 and is 1. connected; 2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve 25; 1. the outlet of described refrigerant stop valve 25 is connected with the refrigerant import of carbon dioxide shell-and-tube heat exchanger 9; 2. the outlet of described carbon dioxide shell-and-tube heat exchanger 9 refrigerant connects the import of flowmeter 2 13; The outlet of described flowmeter 2 13 connects the import of device for drying and filtering 14; The outlet of described device for drying and filtering 14 connects the import of magnetic valve 15; The outlet of described magnetic valve 15 connects the import of choke valve 16; The outlet of described choke valve 16 connects the import of refrigerant stop valve 4 22; The outlet of described refrigerant stop valve 4 22 connects the import of carbon dioxide finned tube exchanger 2 25; The outlet of described carbon dioxide finned tube exchanger 2 25 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
Water system: the delivery port of described first attemperater 12 is connected with the import of water pump 1; 3. the discharge outlet of described water pump 10 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 1 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 1 shell-side connects the import of flowmeter 1; Described flowmeter 1 is connected with the water inlet of the first attemperater 12;
Described valve 3 choose and keying is determined on a case-by-case basis;
Described circulation can experimentally object difference and respectively as water cooled refrigeration system and air-source reclaiming system for condensation heat.
Three, air-cooled liquid chillers and water source heat pump system: as shown in Figure 4, closes refrigerant stop valve 25 and refrigerant stop valve 4 22, opens refrigerant stop valve 1 and refrigerant stop valve 3 20.
Coolant system: 3. 3. the exhaust outlet of described carbon-dioxide gas compressor 1 be connected with the import of carbon dioxide oil eliminator 2,1. the oil return opening of carbon-dioxide gas compressor 1 i.e. No. 1 import is exported by valve 3 and carbon dioxide oil eliminator No. 1 and is 1. connected; 2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve 1; The outlet of described refrigerant stop valve 1 is connected with the import of carbon dioxide finned tube exchanger 1; The outlet of described carbon dioxide finned tube exchanger connects the import of flowmeter 2 13; The outlet of described flowmeter 2 13 connects the import of device for drying and filtering 14; The outlet of described device for drying and filtering 14 connects the import of magnetic valve 15; The outlet of described magnetic valve 15 connects the import of choke valve 16; The outlet of described choke valve 16 connects the import of refrigerant stop valve 3 20; 1. the outlet of described refrigerant stop valve 3 20 connects the import of the refrigerant of carbon dioxide shell-and-tube heat exchanger 2 21; 2. the outlet of described carbon dioxide shell-and-tube heat exchanger 2 21 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
Water system: the delivery port of described second attemperater 17 is connected with the import of water pump 2 18; 3. the discharge outlet of described water pump 18 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 2 21 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 2 21 shell-side connects the import of flowmeter 3 19; Described flowmeter 3 19 is connected with the water inlet of the second attemperater 17;
Described valve 3 choose and keying is determined on a case-by-case basis;
Described circulation can experimentally object difference and respectively as air-cooled liquid chillers system and water source heat pump system.
Four, water-cooled cold water machine set system and water source reclaiming system for condensation heat: as shown in Figure 5, closes refrigerant stop valve 1 and refrigerant stop valve 4 22, opens refrigerant stop valve 25 and refrigerant stop valve 3 20.
Coolant system: 3. 3. the exhaust outlet of described carbon-dioxide gas compressor 1 be connected with the import of carbon dioxide oil eliminator 2,1. the oil return opening of carbon-dioxide gas compressor 1 i.e. No. 1 import is exported by valve 3 and carbon dioxide oil eliminator No. 1 and is 1. connected; 2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve 25; 1. the outlet of described refrigerant stop valve 25 is connected with the refrigerant import of carbon dioxide shell-and-tube heat exchanger 9; 2. the outlet of described carbon dioxide shell-and-tube heat exchanger 9 refrigerant connects the import of flowmeter 2 13; The outlet of described flowmeter 2 13 connects the import of device for drying and filtering 14; The outlet of described device for drying and filtering 14 connects the import of magnetic valve 15; The outlet of described magnetic valve 15 connects the import of choke valve 16; The outlet of described choke valve 16 connects the import of refrigerant stop valve 3 20; 1. the outlet of described refrigerant stop valve 3 20 connects the import of the refrigerant of carbon dioxide shell-and-tube heat exchanger 2 21; 2. the outlet of described carbon dioxide shell-and-tube heat exchanger 2 21 connects the air inlet of carbon dioxide gas-liquid separator 26; 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
Water system: the delivery port of described first attemperater 12 is connected with the import of water pump 1; 3. the discharge outlet of described water pump 10 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 1 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 1 shell-side connects the import of flowmeter 1; Described flowmeter 1 is connected with the water inlet of the first attemperater 12; The delivery port of described second attemperater 17 is connected with the import of water pump 2 18; 3. the discharge outlet of described water pump 18 connects the water inlet of carbon dioxide shell-and-tube heat exchanger 2 21 shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger 2 21 shell-side connects the import of flowmeter 3 19; Described flowmeter 3 19 is connected with the water inlet of the second attemperater 17;
Described valve 3 choose and keying is determined on a case-by-case basis;
Described circulation can experimentally object difference and respectively as water-cooled cold water machine set system and water source reclaiming system for condensation heat.
Although invention has been described for composition graphs above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (1)
1. a unit single-stage critical-cross carbon dioxide refrigerating/heat pump comprehensive experiment table, is characterized in that, comprises carbon-dioxide gas compressor (1), carbon dioxide oil eliminator (2), valve (3), refrigerant stop valve one (4), refrigerant stop valve two (5), single entry air conditioner one (6), electric heater one (7), carbon dioxide finned tube exchanger one (8), carbon dioxide shell-and-tube heat exchanger one (9), water pump one (10), flowmeter one (11), first attemperater (12), flowmeter two (13), device for drying and filtering (14), magnetic valve (15), choke valve (16), second attemperater (17), water pump two (18), flowmeter three (19), refrigerant stop valve three (20), carbon dioxide shell-and-tube heat exchanger two (21), refrigerant stop valve four (22), single entry air conditioner two (23), electric heater two (24), carbon dioxide finned tube exchanger two (25), carbon dioxide gas-liquid separator (26),
The outlet of described carbon-dioxide gas compressor (1) 3. connects the air inlet of carbon dioxide oil eliminator (2) 3., No. 1 import 1. by the oil return opening of valve 3 and carbon dioxide oil eliminator (2) that is No. 1 export and be 1. connected, 2. No. 2 imports connect the exhaust outlet of carbon dioxide gas-liquid separator (26);
The air inlet of described carbon dioxide oil eliminator (2) 3. connects the exhaust outlet of carbon-dioxide gas compressor (1) 3.; 1. 1. No. 1 outlet be connected with oil return opening i.e. No. 1 import of carbon-dioxide gas compressor (1) by valve 3; 1. No. 2 outlets of carbon dioxide oil eliminator (2) are 2. connected with the import of carbon dioxide finned tube exchanger one (8) with carbon dioxide shell-and-tube heat exchanger one (9) refrigerant with refrigerant stop valve two (5) respectively by refrigerant stop valve one (4);
2. the outlet of described carbon dioxide oil eliminator connects the import of refrigerant stop valve one (4); The outlet of described refrigerant stop valve one (4) is connected with the import of carbon dioxide finned tube exchanger one (8); The outlet of described carbon dioxide finned tube exchanger connects the import of flowmeter two (13); The outlet of described flowmeter two (13) connects the import of device for drying and filtering (14); The outlet of described device for drying and filtering (14) connects the import of magnetic valve (15); The outlet of described magnetic valve (15) connects the import of choke valve (16); The outlet of described choke valve 16 connects the import of refrigerant stop valve four (22); The outlet of described refrigerant stop valve four (22) connects the import of carbon dioxide finned tube exchanger two (25); The outlet of described carbon dioxide finned tube exchanger two (25) connects the air inlet of carbon dioxide gas-liquid separator (26); 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor 1;
The refrigerant import of described carbon dioxide shell-and-tube heat exchanger one (9) is 1. exported by refrigerant stop valve two (5) and carbon dioxide oil eliminator (2) No. 2 and is 2. connected; 2. refrigerant exit connects the import of flowmeter two (13); 3. cooling water inlet is connected with the first attemperater (12) by water pump one (10); 4. the outlet of cooling water connects the import of flowmeter one (11);
The delivery port of described first attemperater (12) is connected with the import of water pump one (10); 3. the discharge outlet of described water pump (10) connects the water inlet of carbon dioxide shell-and-tube heat exchanger one (9) shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger one (9) shell-side connects the import of flowmeter one (11); Described flowmeter one (11) is connected with the water inlet of the first attemperater (12);
The refrigerant import of described carbon dioxide shell-and-tube heat exchanger two (21) is 1. connected with choke valve (16) by refrigerant stop valve three (20); 2. refrigerant exit connects the air inlet of carbon dioxide gas-liquid separator (26); 3. water inlet is connected with the second attemperater (17) by water pump two (18); 4. delivery port connects the import of flowmeter three (19);
The outlet of described choke valve (16) connects the import of refrigerant stop valve three (20); The outlet of described refrigerant stop valve three (20) connects the import of the refrigerant of carbon dioxide shell-and-tube heat exchanger two (21) 1.; The outlet of described carbon dioxide shell-and-tube heat exchanger two (21) 2. connects the air inlet of carbon dioxide gas-liquid separator (26); 2. the exhaust outlet of described carbon dioxide gas-liquid separator is connected with the air inlet of carbon-dioxide gas compressor (1);
The delivery port of described second attemperater (17) is connected with the import of water pump two (18); 3. the discharge outlet of described water pump (18) connects the water inlet of carbon dioxide shell-and-tube heat exchanger two (21) shell-side; 4. the delivery port of described carbon dioxide shell-and-tube heat exchanger two (21) shell-side connects the import of flowmeter three (19); Described flowmeter three (19) is connected with the water inlet of the second attemperater (17).
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| CN113252380A (en) * | 2021-06-22 | 2021-08-13 | 浙江创能新能源股份有限公司 | Automatic test platform of multi-functional heat pump |
| DE102022104760A1 (en) | 2022-02-28 | 2023-08-31 | FläktGroup Wurzen GmbH | Heat transfer circuit and method of transferring heat from an air stream to the water of a pool |
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| CN103574989A (en) * | 2013-10-25 | 2014-02-12 | 中仪睿科（天津）教学实验设备有限公司 | Novel multifunctional heat pump and water heater experiment table and experimental method thereof |
| CN104846586A (en) * | 2015-05-28 | 2015-08-19 | 天津商业大学 | Multifunctional trans-critical carbon dioxide heat pump type washing machine |
| CN104878562A (en) * | 2015-05-28 | 2015-09-02 | 天津商业大学 | Multifunctional trans-critical carbon dioxide direct condensation heat-pump washing machine |
| CN205561333U (en) * | 2015-10-26 | 2016-09-07 | 天津商业大学 | Supercritical carbon dioxide refrigeration / heat pump comprehensive experiment platform is striden to unit single -stage |
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