CN205300028U - Falling liquid film formula high temperature heat pump system - Google Patents
Falling liquid film formula high temperature heat pump system Download PDFInfo
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- CN205300028U CN205300028U CN201521097411.3U CN201521097411U CN205300028U CN 205300028 U CN205300028 U CN 205300028U CN 201521097411 U CN201521097411 U CN 201521097411U CN 205300028 U CN205300028 U CN 205300028U
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Abstract
The utility model discloses a falling liquid film formula high temperature heat pump system, it includes double stage compressor, the last import of low pressure jar, high pressure cylinder import and the high voltage output mouth of being equipped with of double stage compressor, oil separator, this oil separator locate between condenser and the double stage compressor, oil separator's input port and high voltage output mouth intercommunication, oil separator's the gas outlet and the import intercommunication of condenser, its characterized in that: still including supplementary heat exchanger, should locate between condenser and the evaporimeter by supplementary heat exchanger, the first import of supplementary heat exchanger and the export of condenser intercommunication, the first export of supplementary heat exchanger is respectively through each self -corresponding electronic expansion valve and the import of evaporimeter and the second import intercommunication of supplementary heat exchanger, the second export and the high pressure cylinder import intercommunication of supplementary heat exchanger. The utility model provides a falling liquid film formula high temperature heat pump system, it is effectual to heat, and the equipment input cost is low, and heat utilization rate is high, and the lower heating of area in the north of ambient temperature of being convenient for is used.
Description
Technical field
This utility model relates to the technical field of air conditioning system, specifically a kind of falling film type high temperature heat pump system.
Background technology
Air pollution has become as one of big event of Domestic Environment improvement, and at northern area, its traditional heating coal-fired arcola is the key factor causing environmental pollution, and heating equipment can not be not intended for the winter in the north, seek the heating equipment of more energy-conserving and environment-protective because of the industry and have become as main technological development direction for replacing coal-fired arcola. And the existing source pump utilizing the waste heat source such as water source, underground heat becomes good heating equipment for substituting coal-fired arcola at present. But existing source pump can only provide the hot water of less than 65 DEG C, its heating effect is poor, and directly adopt existing two-stage compression system, there is relatively costly technical barrier in it, therefore this source pump resulting in existing two-stage compression system cannot be promoted the use of. So being badly in need of a kind of high temperature heat pump system going for north of china in winter use in industry, so-called high temperature refers to the heat pump compared to traditional hot water providing less than 65 DEG C.
Summary of the invention
Technical problem to be solved in the utility model is: providing a kind of falling film type high temperature heat pump system, its heating effect is good, and equipment investment cost is low, and heat utilization rate is high, it is simple to the northern area heating use that ambient temperature is relatively low.
Technical solution adopted in the utility model is: providing a kind of falling film type high temperature heat pump system, it includes a double-stage compressor, and described double-stage compressor is provided with low pressure (LP) cylinder import, high pressure cylinder import and high-pressure output port;
One oil eliminator, this oil eliminator is located between condenser and double-stage compressor, and the input port of oil eliminator connects with high-pressure output port, the gas outlet of oil eliminator and the inlet communication of condenser;
One supplementary heat exchanger, this supplementary heat exchanger is located between condenser and vaporizer, first import of supplementary heat exchanger and the outlet of condenser, the first of supplementary heat exchanger exports the import respectively through each self-corresponding electric expansion valve and vaporizer and the second inlet communication of supplementary heat exchanger, and the second of supplementary heat exchanger exports the high pressure cylinder inlet communication with double-stage compressor;
The low pressure (LP) cylinder inlet communication of the outlet of described vaporizer and double-stage compressor.
It is provided with high pressure cylinder input pressure sensor and high pressure cylinder input temp sensor between second outlet and the high pressure cylinder import of double-stage compressor of described supplementary heat exchanger, it is provided with low pressure (LP) cylinder input pressure sensor between outlet and the low pressure (LP) cylinder import of double-stage compressor of vaporizer, is provided with high pressure cylinder pressure sensor output between condenser and double-stage compressor and for connecting or close the pressure maintenance valve of the pipeline between condenser and double-stage compressor.
Being connected by the first return line between the oil drain out of oil eliminator and the low pressure (LP) cylinder import of double-stage compressor, the first return line is provided with the first electromagnetic valve.
Described vaporizer is provided with oil return opening, oil return opening is by the low pressure (LP) cylinder inlet communication of jet pump with double-stage compressor, described jet pump is provided with the air intake branch of supply jet pump high pressure draught, and described air intake branch is connected with the gas outlet of oil eliminator by the second electromagnetic valve.
Pipeline between described condenser and supplementary heat exchanger is provided with device for drying and filtering, is provided with the ball valve for opening and closing the pipeline between condenser and device for drying and filtering between described condenser and device for drying and filtering.
After adopting above structure, first a kind of falling film type high temperature heat pump system of the present utility model compared with prior art has the advantage that, heating temperature can be made higher by split-compressor, it is easy to the use in winter at northern area, secondly, can for feeding low temperature coolant in the high pressure cylinder of double-stage compressor by supplementary heat exchanger, reduce the purpose of compression built-in temperature, reach more compression ratio, heat energy in supplementary heat exchanger is delivered in vaporizer by coolant simultaneously, and the high efficiente callback reaching heat energy utilizes.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of falling film type high temperature heat pump system of the present utility model.
Wherein, 1, double-stage compressor, 1.1, low pressure (LP) cylinder import, 1.2, high pressure cylinder import, 1.3, high-pressure output port, 2, oil eliminator, 2.1, input port, 2.2, gas outlet, 2.3, oil drain out, 3, condenser, 4, supplementary heat exchanger, 4.1, first import, 4.2, first outlet, 4.3, second import, 4.4, second outlet, 5, vaporizer, 5.1, oil return opening, 6, high pressure cylinder input pressure sensor, 7, high pressure cylinder input temp sensor, 8, low pressure (LP) cylinder input pressure sensor, 9, high pressure cylinder pressure sensor output, 10, pressure maintenance valve, 11, first electromagnetic valve, 12, jet pump, 13, air intake branch, 14, second electromagnetic valve, 15, device for drying and filtering, 16, ball valve, 17, electric expansion valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
This utility model provides a kind of falling film type high temperature heat pump system, and it includes
One double-stage compressor 1, described double-stage compressor 1 is provided with low pressure (LP) cylinder import 1.1, high pressure cylinder import 1.2 and high-pressure output port 1.3;
One oil eliminator 2, this oil eliminator 2 is located between condenser 3 and double-stage compressor 1, and the input port 2.1 of oil eliminator 2 connects with high-pressure output port 1.3, the inlet communication of the gas outlet of oil eliminator 2 2.2 and condenser 3;
It is characterized in that: also include
One supplementary heat exchanger 4, this supplementary heat exchanger 4 is located between condenser 3 and vaporizer 5, first import 4.1 of supplementary heat exchanger 4 and the outlet of condenser 3, first outlet 4.2 of supplementary heat exchanger 4 connects with the import of vaporizer 5 and the second import 4.3 of supplementary heat exchanger 4 respectively through each self-corresponding electric expansion valve 17, second outlet 4.4 of supplementary heat exchanger 4 connects with the high pressure cylinder import 1.2 of double-stage compressor 1, the radiating tube group for connecting the first import 4.1 and the first outlet 4.2 it is provided with in described supplementary heat exchanger 4, and for connecting the endothermic tube group of the second import 4.3 and the second outlet 4.4, radiating tube group and endothermic tube group heat exchange,
The outlet of described vaporizer 5 connects with the low pressure (LP) cylinder import 1.1 of double-stage compressor 1.
The above-mentioned radiating tube group in supplementary heat exchanger 4 and endothermic tube group are the runner that alternate intervals is arranged.
It is provided with high pressure cylinder input pressure sensor 6 and high pressure cylinder input temp sensor 7 between second outlet 4.4 and the high pressure cylinder import 1.2 of double-stage compressor 1 of described supplementary heat exchanger 4, it is provided with low pressure (LP) cylinder input pressure sensor 8 between outlet and the low pressure (LP) cylinder import 1.1 of double-stage compressor 1 of vaporizer 5, is provided with high pressure cylinder pressure sensor output 9 between condenser 3 and double-stage compressor 1 and for connecting or close the pressure maintenance valve 10 of the pipeline between condenser 3 and double-stage compressor 1.
Being connected by the first return line between oil drain out 2.3 and the low pressure (LP) cylinder import 1.1 of double-stage compressor 1 of oil eliminator 2, the first return line is provided with the first electromagnetic valve 11.
Described vaporizer 5 is provided with oil return opening 5.1, oil return opening 5.1 is connected with the low pressure (LP) cylinder import 1.1 of double-stage compressor 1 by jet pump 12, described jet pump 12 is provided with the air intake branch 13 of supply jet pump 12 high pressure draught, and described air intake branch 13 is connected with the gas outlet 2.2 of oil eliminator 2 by the second electromagnetic valve 14.
Pipeline between described condenser 3 and supplementary heat exchanger 4 is provided with device for drying and filtering 15, is provided with the ball valve 16 for opening and closing the pipeline between condenser 3 and device for drying and filtering 15 between described condenser 3 and device for drying and filtering 15.
This utility model provides a kind of control method based on the falling film type high temperature heat pump system described in claim 1, it is characterised in that: it includes
The motor temperature sensor high temperature alarm that step 1, double-stage compressor 1 are built-in;
The flow of the electric expansion valve 6 being connected with the second import 4.3 of supplementary heat exchanger 4 on step 2, supplementary heat exchanger 4 increases, and the coolant input quantity of the high pressure cylinder import 1.2 of described double-stage compressor 1 increases therewith, and motor temperature sensor high temperature alarm releases;
Step 3, when the coolant input quantity of high pressure cylinder import 1.2 increases to the detected value of high pressure cylinder input pressure sensor 6 more than the detected value of high pressure cylinder pressure sensor output 9, in pressure maintenance valve 10, flow reduces, and high-pressure output port 1.3 pressure of double-stage compressor 1 raises.
The operation principle of refrigerant circulation of the present utility model is, the gaseous coolant of High Temperature High Pressure is formed after Two-stage Compression level 1 compression refrigerant, gaseous coolant inputs in condenser 3 after oil eliminator 2 and carries out heat exchange with the recirculated water in condenser, condenser water inlet connects cold water, leaving condenser water mouth is hot water, thus indoor are heated by supply, coolant is the liquid of middle temperature high pressure after condenser 3, thus enter from the first import 4.1 of supplementary heat exchanger 4 after device for drying and filtering 15, first import 4.1 is exported 4.2 with first and is connected by radiating tube group, thus coolant carries out after to a certain degree cooling in gas-liquid two-phase through radiating tube group in supplementary heat exchanger 4, the part of the coolant of gas-liquid two-phase enters vaporizer 5 after an electric expansion valve 17 dilatation blood pressure lowering, then it is gaseous coolant after heat absorption in vaporizer 5, and input from low pressure (LP) cylinder import 1.1 in the low pressure (LP) cylinder of double-stage compressor 1 and carry out one stage of compression, the coolant of the gas-liquid two-phase of another part enters the second import 4.3 of supplementary heat exchanger 4 after another electric expansion valve 17, second import 4.3 is exported 4.4 with second and is connected by endothermic tube group, thus endothermic tube group and radiating tube group carry out heat exchange, the coolant of the gas-liquid two-phase in endothermic tube group is gaseous state after being heated, and finally enter fluid infusion pressure and the cooling that high pressure cylinder import 1.2 realizes in double-stage compressor 1 high pressure cylinder.In the process, when built-in motor temperature inductor in double-stage compressor is reported to the police, control electric expansion valve 17 flow on supplementary heat exchanger 4 and become big, thus improving the liquid inlet volume of the high pressure cylinder import 1.2 of double-stage compressor 1, reduce the temperature of double-stage compressor 1, and when the pressure of high pressure cylinder import 1.2 sets high when the pressure of high pressure cylinder delivery outlet 1.3, pressure maintenance valve flow reduces, so that the pressure of high pressure cylinder delivery outlet 1.3 raises, thus control the pressure of high pressure cylinder delivery outlet 1.3 more than high pressure cylinder import 1.2, the pressure of high pressure cylinder import 1.2 is more than the pressure of low pressure (LP) cylinder import 1.1.
Said process controls the coolant of described high pressure cylinder import 1.2 input by high pressure cylinder input temp sensor 7 and high pressure cylinder input pressure sensor 6 and is gaseous state. Cause after preventing pressure release excessive that the coolant input double-stage compressor 1 of gas-liquid two-phase damages compressor.
The periodic duty principle of compressor fluid of the present utility model is, double-stage compressor 1 pumps coolant and lubricating oil through high pressure cylinder delivery outlet 1.3 and carries out most Oil-gas Separation to oil eliminator, and the fluid the separated oil pipe circulation through the first electromagnetic valve 11 place is delivered to low pressure (LP) cylinder import 1.1 place of double-stage compressor 1. Part gaseous state fluid moves to vaporizer 5 with medium circulation pipeline, and in evaporator bottom 5 convergence, by the Venturi effect of jet pump 12, make the pipeline at oil return opening 5.1 place form negative pressure, fluid bottom vaporizer 5 is pulled out, and is pumped in low pressure (LP) cylinder import 1.1. The high voltage power source of described jet pump 12 is to be connected by the trachea between air intake branch 13 with oil-liquid separator 2 and condenser 3.
Pressure maintenance valve of the present utility model is preferably mechanical valve, back-moving spring and the control piper being connected with low pressure (LP) cylinder import 1.1 it is provided with in described mechanical valve, the elastic force of the pressure in control piper and back-moving spring forms a balance force value, namely the pressure rising of high pressure cylinder import 1.2 causes that the air pressure in control piper raises, surrender back-moving spring compression, so that the flow of the gas outlet 2.2 of oil eliminator 2 reduces, which thereby enhance the pressure of high pressure cylinder delivery outlet 1.3, thus ensureing the pressure of the pressure > low pressure (LP) cylinder import 1.1 of the pressure > high pressure cylinder import 1.2 of high pressure cylinder delivery outlet 1.3.
This utility model be mainly used in north of china in winter use, therefore its generally, condenser 3 be indoor set, heats, and vaporizer 5 is off-premises station, its be used for carry out heat exchange with the waste heat source such as water source, underground heat.
It is along adding the membranaceous flowing that heat pipe wall is heat-transfer effect the best that this film in falling film type in this utility model refers to material liquid in operation, because becoming falling film type in the industry. It all can inquire related data at Baidupedia. Therefore, so-called falling film type is not being done detailed explanation by this utility model. As what introduce in background in this utility model, conventional compressor can only provide the hot water of less than 65 DEG C, and this utility model can provide at least up to 85 DEG C, so heat pump of the present utility model is defined as falling film type high temperature heat pump system. Its " high temperature " is the heat pump relative to the conventional hot water that can only provide less than 65 DEG C.
Above this utility model preferred embodiment is described, but is not to be construed as limitations on claims. This utility model is not only limited to above example, and its concrete structure allows to change, and all various changes made in the protection domain of this utility model demand for independence are all in protection domain of the present utility model.
Claims (5)
1. a falling film type high temperature heat pump system, it includes
One double-stage compressor (1), described double-stage compressor (1) is provided with low pressure (LP) cylinder import (1.1), high pressure cylinder import (1.2) and high-pressure output port (1.3);
One oil eliminator (2), this oil eliminator (2) is located between condenser (3) and double-stage compressor (1), the input port (2.1) of oil eliminator (2) connects with high-pressure output port (1.3), the gas outlet (2.2) of oil eliminator (2) and the inlet communication of condenser (3);
It is characterized in that: also include
One supplementary heat exchanger (4), this supplementary heat exchanger (4) is located between condenser (3) and vaporizer (5), first import (4.1) of supplementary heat exchanger (4) and the outlet of condenser (3), first outlet (4.2) of supplementary heat exchanger (4) connects with the import of vaporizer (5) and second import (4.3) of supplementary heat exchanger (4) respectively through each self-corresponding electric expansion valve (17), second outlet (4.4) of supplementary heat exchanger (4) connects with the high pressure cylinder import (1.2) of double-stage compressor (1),
The outlet of described vaporizer (5) connects with the low pressure (LP) cylinder import (1.1) of double-stage compressor (1).
2. a kind of falling film type high temperature heat pump system according to claim 1, it is characterized in that: between the second outlet (4.4) and the high pressure cylinder import (1.2) of double-stage compressor (1) of described supplementary heat exchanger (4), be provided with high pressure cylinder input pressure sensor (6) and high pressure cylinder input temp sensor (7), it is provided with low pressure (LP) cylinder input pressure sensor (8) between outlet and the low pressure (LP) cylinder import (1.1) of double-stage compressor (1) of vaporizer (5), it is provided with high pressure cylinder pressure sensor output (9) between condenser (3) and double-stage compressor (1) and is used for connecting or closing the pressure maintenance valve (10) of the pipeline between condenser (3) and double-stage compressor (1).
3. a kind of falling film type high temperature heat pump system according to claim 1, it is characterized in that: being connected by the first return line between oil drain out (2.3) and the low pressure (LP) cylinder import (1.1) of double-stage compressor (1) of oil eliminator (2), the first return line is provided with the first electromagnetic valve (11).
4. a kind of falling film type high temperature heat pump system according to claim 3, it is characterized in that: described vaporizer (5) is provided with oil return opening (5.1), oil return opening (5.1) is connected with the low pressure (LP) cylinder import (1.1) of double-stage compressor (1) by jet pump (12), described jet pump (12) is provided with the air intake branch (13) of supply jet pump (12) high pressure draught, and described air intake branch (13) is connected with the gas outlet (2.2) of oil eliminator (2) by the second electromagnetic valve (14).
5. a kind of falling film type high temperature heat pump system according to claim 1, it is characterized in that: the pipeline between described condenser (3) and supplementary heat exchanger (4) is provided with device for drying and filtering (15), between described condenser (3) and device for drying and filtering (15), be provided with the ball valve (16) for opening and closing the pipeline between condenser (3) and device for drying and filtering (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097411.3U CN205300028U (en) | 2015-12-24 | 2015-12-24 | Falling liquid film formula high temperature heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097411.3U CN205300028U (en) | 2015-12-24 | 2015-12-24 | Falling liquid film formula high temperature heat pump system |
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| Publication Number | Publication Date |
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| CN205300028U true CN205300028U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521097411.3U Expired - Fee Related CN205300028U (en) | 2015-12-24 | 2015-12-24 | Falling liquid film formula high temperature heat pump system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466080A (en) * | 2015-12-24 | 2016-04-06 | 宁波沃弗圣龙环境技术有限公司 | Falling-film high-temperature heat pump system |
| CN108362024A (en) * | 2017-01-26 | 2018-08-03 | 荏原冷热系统株式会社 | Centrifugal refrierator |
-
2015
- 2015-12-24 CN CN201521097411.3U patent/CN205300028U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466080A (en) * | 2015-12-24 | 2016-04-06 | 宁波沃弗圣龙环境技术有限公司 | Falling-film high-temperature heat pump system |
| CN105466080B (en) * | 2015-12-24 | 2017-09-12 | 宁波沃弗圣龙环境技术有限公司 | A kind of falling film type high temperature heat pump system |
| CN108362024A (en) * | 2017-01-26 | 2018-08-03 | 荏原冷热系统株式会社 | Centrifugal refrierator |
| CN108362024B (en) * | 2017-01-26 | 2021-01-12 | 荏原冷热系统株式会社 | Centrifugal refrigerator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20171224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |