CN205048788U - Air source heat pump unit is used in high -efficient crude oil heating - Google Patents
Air source heat pump unit is used in high -efficient crude oil heating Download PDFInfo
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- CN205048788U CN205048788U CN201520762924.5U CN201520762924U CN205048788U CN 205048788 U CN205048788 U CN 205048788U CN 201520762924 U CN201520762924 U CN 201520762924U CN 205048788 U CN205048788 U CN 205048788U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 239000010779 crude oil Substances 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 230000008020 evaporation Effects 0.000 claims abstract description 39
- 238000001704 evaporation Methods 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims description 27
- 239000003921 oil Substances 0.000 claims description 21
- 239000002828 fuel tank Substances 0.000 claims description 19
- 239000002826 coolant Substances 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 20
- 239000007789 gas Substances 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 14
- 238000005057 refrigeration Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses an air source heat pump unit is used in high -efficient crude oil heating mainly includes first order circulation circuit and second level circulation circuit, and first order circulation circuit is including the the first compressor, binary channels heat exchanger, two channel evaporator and the vapour and liquid separator that feed through in order, lies in to be provided with first expansion valve on the pipeline between binary channels heat exchanger and couple channel evaporator, second level circulation circuit includes heat transfer subloop and evaporation subloop, and it can be through forming closed circulation circuit with the heat transfer subloop behind the binary channels heat exchanger among the first order circulation circuit or the two channel evaporator wherein to evaporate the subloop. Through selecting different evaporation subloops, can realize second level circulation circuit's independent operation, perhaps first order circulation circuit, second level circulation circuit move simultaneously to can adapt to the operation that heats of different environment temperature. The utility model has the advantages of the heating capacity decay is little, efficiency relative altitude, adaptation ambient temperature range width to and the operation is stable and reliable.
Description
Technical field
The utility model relates to heat pump technology, especially a kind of net for air-source heat pump units, and this net for air-source heat pump units can be used for the occasions such as crude oil heating, building heating and hot water supply.
Background technology
The mode of heating of existing crude oil storage tank mainly contains: electrical heating, fuel oil or gas fired-boiler heating, solar energy and heat pump.Electrical heating directly adopts high-grade energy to heat, and use cost is high, primary energy ratio is low, neither energy-conservation, also uneconomical; The mode meeting exhaust emission gas of fuel oil or gas heating; Due to periodicity and the uncertainty of solar radiation, solar energy heating mode exists for thermally labile, need assist other forms of heater, causes heating system complexity, reliability reduction; The mode of traditional heat pump is only applicable to large oilfield and has sewage and the higher available occasion of low level heat energy of grade.
For this reason, technical staff proposes the technical scheme of air source heat pump heating, and the program realizes heating after promoting energy grad using air as low level heat energy by source pump.But find in actual applications: existing air source heat pump energy-saving effect when environment is higher is better, when environment temperature declines, the decay of air source heat pump heating capacity is comparatively serious, and heating energy efficiency ratio is low, and the reliability and stability of system cloud gray model is poor.
Therefore, existing air source heat pump can not meet the demand of outdoor wide temperature excursion, runs also stable not and reliable.
Utility model content
Utility model object: provide a kind of efficient heating crude oil net for air-source heat pump units, to heat the problems such as heating capacity decay greatly and heating energy efficiency ratio is low, operational reliability is poor under bad adaptability, low temperature environment to solve existing air source heat pump the whole year to the change of environment temperature wide region.
Technical scheme: a kind of efficient heating crude oil net for air-source heat pump units, comprise first order closed circuit and second level closed circuit, described first order closed circuit comprises the first compressor, double passage heat exchanger, binary channels evaporimeter and the first gas-liquid separator that are sequentially communicated with, are formed closed circulation system, the pipeline between double passage heat exchanger and binary channels evaporimeter is provided with the first expansion valve;
Described second level closed circuit comprises the heat exchange sub-loop and evaporation sub-loop that are interconnected; Described heat exchange sub-loop comprises the second gas-liquid separator, the second compressor, fuel tank heat exchanger and the fluid reservoir that are sequentially communicated with;
Described evaporation sub-loop comprises first, second evaporation sub-loop, and its two ends are communicated with the second gas-liquid separator with fluid reservoir respectively, and the first evaporation sub-loop connects double passage heat exchanger Zhong mono-tunnel, and the second evaporation sub-loop connects a road of binary channels evaporimeter;
In first evaporation sub-loop, the pipeline between double passage heat exchanger and fluid reservoir, the second gas-liquid separator is respectively arranged with the second magnetic valve and the 4th magnetic valve; In second evaporation sub-loop, the pipeline between binary channels evaporimeter and fluid reservoir, the second gas-liquid separator is respectively arranged with the first magnetic valve and the 3rd magnetic valve; The port of export of fluid reservoir is connected with the second expansion valve, or be connected with the fluid reservoir port of export first evaporates sub-loop and second and evaporate in sub-loop and be connected to expansion valve.
Further, the coolant channel interval of described binary channels evaporimeter is arranged, the two ends of a coolant channel are respectively arranged with the first knockout and the first discharge, and the two ends of another coolant channel are respectively arranged with the second knockout and the second discharge.
Further, be provided with four-way change-over valve in described first order closed circuit, the interface of this four-way change-over valve is communicated with the first discharge of binary channels evaporimeter with the exhaust outlet of the first compressor, the entrance of the first gas-liquid separator, the primary side entrance of double passage heat exchanger respectively.
Further, described heat exchange sub-loop also comprises oil eliminator, and it is connected between the second compressor and fuel tank heat exchanger, and the oil return opening of this oil eliminator is connected with the air entry of the second compressor; Pipeline between oil eliminator gas outlet and fuel tank heat exchanger is disposed with check valve and the first ball valve; Pipeline between oil eliminator oil return opening and the second compressor air suction mouth is disposed with visor and the 3rd ball valve.
Further, the pipeline between described fuel tank heat exchanger and fluid reservoir is provided with the second ball valve.Described fuel tank heat exchanger is double helix coil condenser.
Beneficial effect: the utility model is provided with two stage cycle loop, two-stage loop is independent, can realize that twin-stage heats, two loops heat separately simultaneously and second servo loop such as to heat separately at the operational mode, unit is enable to adapt to wider variation of ambient temperature, annual heating effect is better, and the reliability and stability of system cloud gray model improve.
Accompanying drawing explanation
Fig. 1: the structural representation of the utility model embodiment one.
Fig. 2: the structural representation of the utility model embodiment two.
Detailed description of the invention
Composition graphs 1 and Fig. 2 describe structure of the present utility model, theory and design thinking in detail.
As shown in Figure 1, the efficient heating crude oil net for air-source heat pump units in this embodiment, mainly comprises two groups of relatively independent circulatory systems, can isolated operation, also can run simultaneously.When environment temperature is higher, several groups of single-stage operations respectively can be controlled according to heating-up temperature; When environment temperature is lower or heating-up temperature is higher, run with source pump simultaneously, thus enable unit stable operation when wider range of temperature (-25 DEG C ~ 40 DEG C), particularly can enable unit reliable, stable operation in comparatively low ambient temperature.
In this embodiment, first order closed circuit mainly comprises the first compressor 1, four-way change-over valve 2, double passage heat exchanger 3, first expansion valve 4, first cold-producing medium knockout 51, binary channels evaporimeter 5 and the first gas-liquid separator 6, sequentially be communicated with by body between each device, form the circulatory system of a relative closure.
Multichannel low-temperature level coolant channel 53 and multichannel high-temperature level refrigeration agent passage 54 is provided with in binary channels evaporimeter, their intervals are arranged, its two ends connect knockout and discharge respectively, and namely the two ends of low-temperature level coolant channel are respectively arranged with low-temperature level cold-producing medium knockout 51(first cold-producing medium knockout) and low-temperature level cold-producing medium discharge 55(first discharge).Meanwhile, the first refrigerator knockout 51 can be a part for binary channels evaporimeter, is namely integrated on binary channels evaporimeter.
This closed circuit is cryogenic circulation loop, hereinafter, first compressor 1 refers to low-temperature level compressor, double passage heat exchanger 3 is plate type heat exchanger, first expansion valve 4 is low-temperature level expansion valve, and first order gas-liquid separator 6 is low-temperature level gas-liquid separator, for simplicity, when describing this embodiment, above-mentioned concept can be used instead mutually.
In practice, the annexation of each device is: the outlet of low-temperature level gas-liquid separator is connected with the air entry of low-temperature level compressor, the exhaust outlet of low-temperature level compressor is connected with the air inlet of four-way change-over valve, the gas returning port of four-way change-over valve is connected with the entrance of low-temperature level gas-liquid separator, two other interface of four-way change-over valve is connected with the low-temperature level refrigerant inlet of plate type heat exchanger and the low-temperature level cold-producing medium discharge 55 of binary channels evaporimeter respectively, the low-temperature level refrigerant outlet of plate type heat exchanger is connected with the import of low-temperature level expansion valve, the outlet of low-temperature level expansion valve is connected with the low-temperature level cold-producing medium knockout of binary channels evaporimeter.
Second level closed circuit mainly comprises two parts, i.e. heat exchange sub-loop and evaporation sub-loop, respectively in order to heating in crude oil (gas and crude oil heat exchange) and cold-producing medium regeneration process (gas is evaporated by liquid state, again becomes gaseous state).In heat exchange sub-loop, comprise the second gas-liquid separator 19, second compressor 7, oil eliminator 8, fuel tank heat exchanger 11 and fluid reservoir 13, each device is sequentially communicated with, and forms the part in loop, part connecting pipeline is provided with magnetic valve.Pipeline between oil eliminator and fuel tank heat exchanger is provided with check valve 9 and the first ball valve 10, the pipeline between fuel tank heat exchanger and fluid reservoir is provided with the second ball valve 12.The oil-out of oil eliminator is connected with the entrance point of the second compressor, and connecting line is provided with visor 20 and the 3rd ball valve 21.In condenser pipe, gas heat release, heating in crude oil, gas self is lowered the temperature, and forms high pressure low temperature liquid, enters fluid reservoir.
Evaporation sub-loop has two, first evaporation sub-loop and the second evaporation sub-loop, closed-loop path is formed with heat exchange sub-loop respectively under different working conditions, the two ends of their (the first evaporation sub-loop and second evaporation sub-loops) are communicated with the second gas-liquid separator with fluid reservoir respectively, connected mode can be directly be communicated with the second gas-liquid separator with fluid reservoir separately, or fluid reservoir and the second gas-liquid separator are provided with many siphunculus or tube connector, and first, second sub-loop is communicated with many siphunculus or tube connector.
First evaporation sub-loop and the second evaporation sub-loop are respectively via the different device in first order closed circuit, and wherein, the first evaporation sub-loop is via double passage heat exchanger Zhong mono-tunnel, and the second evaporation sub-loop is via binary channels evaporimeter Zhong mono-tunnel.In the second evaporation sub-loop, by high-temperature level refrigeration agent knockout 52 and the high-temperature level refrigeration agent channel connection in binary channels evaporimeter, and flow out from high-temperature level refrigeration agent discharge 56, flow back to the second gas-liquid separator.
In the first evaporation sub-loop, the connecting pipe between double passage heat exchanger and fluid reservoir, the second gas-liquid separator is respectively arranged with the second magnetic valve 16 and the 4th magnetic valve 18, in order to control the on off operating mode in this loop.
In the second evaporation sub-loop, the connecting pipe between binary channels evaporimeter and fluid reservoir, the second gas-liquid separator arranges the first magnetic valve 15 and the 3rd magnetic valve 17, respectively in order to control the on off operating mode in this loop.
The exit of fluid reservoir is provided with the second expansion valve 14.Or in the first evaporation sub-loop and the second evaporation sub-loop, be provided with expansion valve (the second expansion valve 14 and the 3rd expansion valve 22) separately, detailed in Example two.
By controlling the opening and closing of the first, the 3rd and second, the 4th magnetic valve, the break-make of first, second evaporation sub-loop can be controlled, to determine being which sub-loop and heat exchange sub-loop form closed-loop path.
In this embodiment, second closed circuit is high-temperature level closed circuit, therefore when describing this part, second gas-liquid separator refers to high-temperature level gas-liquid separator, and the second compressor is high-temperature level compressor, and fluid reservoir is high pressure fluid reservoir, fuel tank heat exchanger is double helix coil pipe fuel tank heat exchanger, second expansion valve is high-temperature level heating power expansion valve, and during description, above-mentioned concept can be used instead.
In practice, the exhaust outlet of high-temperature level compressor is connected with the air inlet of oil eliminator, the oil return opening of oil eliminator successively with visor, 3rd ball valve, high-temperature level compressor inlet connects, the gas outlet of oil eliminator successively with check valve, first ball valve connects, first ball valve outlet is connected with double helix coil pipe fuel tank heat exchanger entrance, double helix coil pipe fuel tank heat exchanger exit is connected with the second ball valve entrance, second ball valve outlet is connected with high pressure fluid reservoir entrance, the outlet of high pressure fluid reservoir is connected with high-temperature level thermal expansion valve inlet, high-temperature level thermal expansion valve outlet port respectively with the first magnetic valve, second electromagnetic valve entrance connects, first electromagnetic valve outlet is connected with the high-temperature level refrigeration agent knockout entrance of binary channels evaporimeter, the high-temperature level refrigeration agent discharge outlet of binary channels evaporimeter is connected with the 3rd electromagnetic valve entrance, second electromagnetic valve outlet is connected with the high-temperature level refrigeration agent entrance of plate type heat exchanger, the high-temperature level refrigeration agent outlet of plate type heat exchanger and the entrance of the 4th magnetic valve connect, the outlet of the 4th magnetic valve is connected with the entrance of high-temperature level gas-liquid separator with the outlet of the 3rd magnetic valve, the outlet of high-temperature level gas-liquid separator and the outlet of the 3rd ball valve are connected with the air entry of high-temperature level compressor.
The working method of this embodiment under different conditions is described.
When environment temperature is higher, second level closed circuit isolated operation pattern:
The second magnetic valve in first evaporation sub-loop and the 4th closed electromagnetic valve, the first magnetic valve in the second evaporation sub-loop and the 3rd magnetic valve are opened, the first compressor shutdown, the second compressor start, fan starting.
Second compressor (high-temperature level compressor) sucks the refrigerant gas of low pressure from high-temperature level gas-liquid separator (the second gas-liquid separator), the refrigerant gas of HTHP is become after compression, then through oil eliminator, check valve, first ball valve enters double helix coil pipe fuel tank heat exchanger, the refrigerant liquid of high pressure low temperature is cooled to wherein after heat release, refrigerant liquid through the throttling of high-temperature level expansion valve be low-temp low-pressure gas-liquid mixture phase, gas-liquid mixture phase cold-producing medium enters binary channels evaporimeter through the first magnetic valve, in the high-temperature level refrigeration agent passage of binary channels evaporimeter, heat absorption becomes gaseous refrigerant, gaseous refrigerant is through high-temperature level refrigeration agent discharge, 3rd magnetic valve enters high-temperature level gas-liquid separator, then sucked from air entry by high-temperature level compressor, complete single-stage circulation process.
When environment temperature is lower, the first order, second level closed circuit run simultaneously:
The first magnetic valve in second evaporation sub-loop and the 3rd closed electromagnetic valve, the second magnetic valve in the first evaporation sub-loop and the 4th magnetic valve are opened.First compressor and the second compressor are opened, fan starting.
Low-temperature level compressor sucks the refrigerant gas of low pressure from low-temperature level gas-liquid separator, the refrigerant gas of HTHP is become after compression, then heat release in plate type heat exchanger, be cooled to the refrigerant liquid of high pressure low temperature, refrigerant liquid through the throttling of low-temperature level expansion valve be low-temp low-pressure gas-liquid mixture phase, gas-liquid mixture phase cold-producing medium absorbs heat in the low-temperature level coolant channel of binary channels evaporimeter becomes the gaseous refrigerant gas of low pressure, gaseous refrigerant gas is sucked by compressor through low-temperature level gas-liquid separator, complete the cyclic process of autocascade cycle low-temperature level.
High-temperature level compressor sucks the refrigerant gas of low pressure from high-temperature level gas-liquid separator, the refrigerant gas of HTHP is become after compression, then through oil eliminator, check valve, first ball valve enters double helix coil condenser (fuel tank heat exchanger) and heat release wherein, be cooled to the refrigerant liquid of high pressure low temperature, refrigerant liquid through the throttling of high-temperature level expansion valve be low-temp low-pressure gas-liquid mixture phase, gas-liquid mixture phase cold-producing medium enters plate type heat exchanger through the second magnetic valve and absorbs heat wherein, become gaseous refrigerant, refrigerant gas is through the 4th magnetic valve, high-temperature level gas-liquid separator is sucked by compressor, complete high-temperature level cyclic process.
Because two stage cycle loop is independently, therefore low-temperature level cold-producing medium and high-temperature level refrigeration agent can adopt different cold-producing mediums, and such as, low-temperature level cold-producing medium is R410A, and high-temperature level refrigeration agent is R234a.
Forward Fig. 2 to, describe embodiment 2 of the present utility model, the difference of this embodiment and embodiment one is, high-temperature level heating power expansion valve is separately positioned in the first evaporation sub-loop and the second evaporation sub-loop, instead of first, second evaporation sub-loop shares.That is, embodiment one is separatory before cold-producing medium throttling, and embodiment two is separatory after cold-producing medium throttling.
From structure and the operation principle of above-described embodiment, in the utility model, the first order and second level closed circuit can independent operatings, simultaneously under two kinds of duties, second level closed circuit can share the partial devices in first order closed circuit, such as share blower fan, because this reducing equipment cost and reducing volume.Simultaneously, two groups of coolant channels in binary channels evaporimeter can adopt spaced apart mode, low-temperature level coolant channel and high-temperature level refrigeration agent channel spacing arrange, when isolated operation, high-temperature level refrigeration agent passage utilizes separately the heat exchange fin on evaporimeter, be equivalent to the inned coefficient adding finned heat exchanger, increase heat exchange area, heat transfer effect is better.
From above-mentioned two kinds of duties, the utility model can switching working mode as required, can run, thus enable unit adapt to wider variation of ambient temperature, namely run in wider environment temperature at different ambient temperature stable.
When two stage cycle system is run simultaneously, unit can realize higher heating-up temperature, low ambient temperature and heating-up temperature larger time, also have higher system heating energy efficiency ratio.
When environment temperature is lower, run by twin-stage heating mode, effectively can reduce the compression ratio of compressor, reduce compressor exhaust temperature, improve operational efficiency and the reliability of compressor; Meanwhile, according to heating-up temperature demand, two-bed system can adopt different cold-producing medium, can realize higher heating-up temperature demand like this.Adopt this utility model scheme, compared with the heat pump of conventional air source, effectively can improve the adaptability that source pump changes environment temperature wide region, improve heating capacity and the heating energy efficiency ratio of air source heat pump under low temperature environment, realize good energy-saving effect.
Other advantages of the present utility model comprise: adopt double helix coil pipe, and it can with crude oil direct heat transfer, and comparatively regular air source heat pump uses water to compare as heating medium, reduces intermediate heat transfer loss, reduces heat transfer temperature difference, increase system heating energy efficiency ratio.
More than describe preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple equivalents to the technical solution of the utility model, these equivalents all belong to protection domain of the present utility model.
Claims (6)
1. an efficient heating crude oil net for air-source heat pump units, is characterized in that, comprises first order closed circuit and second level closed circuit,
Described first order closed circuit comprises the first compressor (1), double passage heat exchanger (3), binary channels evaporimeter (5) and the first gas-liquid separator (6) that are sequentially communicated with, are formed closed circulation system, is positioned on the pipeline between double passage heat exchanger (3) and binary channels evaporimeter (5) and is provided with the first expansion valve (4);
Described second level closed circuit comprises the heat exchange sub-loop and evaporation sub-loop that are interconnected; Described heat exchange sub-loop comprises the second gas-liquid separator (19), the second compressor (7), fuel tank heat exchanger (11) and the fluid reservoir (13) that are sequentially communicated with;
Described evaporation sub-loop comprises first, second evaporation sub-loop, its two ends are communicated with the second gas-liquid separator (19) with fluid reservoir (13) respectively, first evaporation sub-loop connects double passage heat exchanger Zhong mono-tunnel (3), and the second evaporation sub-loop connects a road (5) of binary channels evaporimeter;
In first evaporation sub-loop, the pipeline between double passage heat exchanger (3) and fluid reservoir (13), the second gas-liquid separator (19) is respectively arranged with the second magnetic valve (16) and the 4th magnetic valve (18); In second evaporation sub-loop, the pipeline between binary channels evaporimeter (5) and fluid reservoir (13), the second gas-liquid separator (19) is respectively arranged with the first magnetic valve (15) and the 3rd magnetic valve (17); The port of export of fluid reservoir (13) is connected with the second expansion valve (14), or be connected with the fluid reservoir port of export first evaporates sub-loop and second and evaporate in sub-loop and be connected to expansion valve.
2. efficient heating crude oil net for air-source heat pump units as claimed in claim 1, it is characterized in that, coolant channel (53, the 54) interval of described binary channels evaporimeter is arranged, the two ends of one coolant channel are respectively arranged with the first knockout (51) and the first discharge (55), and the two ends of another coolant channel are respectively arranged with the second knockout and the second discharge (56).
3. efficient heating crude oil net for air-source heat pump units as claimed in claim 2, it is characterized in that, be provided with four-way change-over valve (2) in described first order closed circuit, the interface of this four-way change-over valve (2) is communicated with first discharge (55) of binary channels evaporimeter with the exhaust outlet of the first compressor (1), the entrance of the first gas-liquid separator (6), the primary side entrance of double passage heat exchanger (3) respectively.
4. the efficient heating crude oil net for air-source heat pump units as described in claim 1,2 or 3, it is characterized in that, described heat exchange sub-loop also comprises oil eliminator (8), it is connected between the second compressor (7) and fuel tank heat exchanger (11), and the oil return opening of this oil eliminator (8) is connected with the air entry of the second compressor (7); Pipeline between oil eliminator (8) gas outlet and fuel tank heat exchanger (11) is disposed with check valve (9) and the first ball valve (10); Pipeline between oil eliminator (8) oil return opening and the second compressor (7) air entry is disposed with visor (20) and the 3rd ball valve (21).
5. efficient heating crude oil net for air-source heat pump units as claimed in claim 4, is characterized in that, the pipeline between described fuel tank heat exchanger (11) and fluid reservoir (13) is provided with the second ball valve (12).
6. efficient heating crude oil net for air-source heat pump units as claimed in claim 1, it is characterized in that, described fuel tank heat exchanger (11) is double helix coil condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762924.5U CN205048788U (en) | 2015-09-29 | 2015-09-29 | Air source heat pump unit is used in high -efficient crude oil heating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520762924.5U CN205048788U (en) | 2015-09-29 | 2015-09-29 | Air source heat pump unit is used in high -efficient crude oil heating |
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| CN205048788U true CN205048788U (en) | 2016-02-24 |
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| CN201520762924.5U Expired - Fee Related CN205048788U (en) | 2015-09-29 | 2015-09-29 | Air source heat pump unit is used in high -efficient crude oil heating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202813A (en) * | 2015-09-29 | 2015-12-30 | 南京苏佰能能源科技有限公司 | Air source heat pump unit for crude oil heating |
| CN116263279A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | An air source heat pump device and method for heating produced fluid in an oil production well site |
| CN117847781A (en) * | 2023-12-25 | 2024-04-09 | 东营市瑞兽节能设备有限公司 | Energy efficiency multiplied crude oil double-superposition heating device and method |
-
2015
- 2015-09-29 CN CN201520762924.5U patent/CN205048788U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202813A (en) * | 2015-09-29 | 2015-12-30 | 南京苏佰能能源科技有限公司 | Air source heat pump unit for crude oil heating |
| CN116263279A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | An air source heat pump device and method for heating produced fluid in an oil production well site |
| CN117847781A (en) * | 2023-12-25 | 2024-04-09 | 东营市瑞兽节能设备有限公司 | Energy efficiency multiplied crude oil double-superposition heating device and method |
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Granted publication date: 20160224 |