CN209893636U - Air energy heat pump system for heating crude oil - Google Patents
Air energy heat pump system for heating crude oil Download PDFInfo
- Publication number
- CN209893636U CN209893636U CN201822081097.XU CN201822081097U CN209893636U CN 209893636 U CN209893636 U CN 209893636U CN 201822081097 U CN201822081097 U CN 201822081097U CN 209893636 U CN209893636 U CN 209893636U
- Authority
- CN
- China
- Prior art keywords
- water
- heat pump
- air
- water tank
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an air-source heat pump system for crude oil heating to the air is as the heat source, and the purpose of heating station crude oil is reached as the heat carrier to refrigerant, water. The heating system has two working modes, one mode is that the air source heat pump heats low-temperature water in the first water tank by utilizing heat energy in air, then the water source heat pump further heats high-temperature water in the second water tank by utilizing the water heated in the first water tank, and then the water enters the heat exchanger to heat crude oil. The other type is that the air source heat pump heats the low-temperature water in the first water tank by utilizing the heat energy in the air, and the low-temperature water enters the heat exchanger to directly heat the crude oil, so that the purpose of heating the crude oil is achieved. The set of heating system comprises two working modes which can be flexibly selected according to the situation. And the energy consumption is low, the energy efficiency is high, and the environment is protected.
Description
Technical Field
The utility model relates to a turbine engine cooling technical field particularly, relates to an air energy heat pump system for crude oil heating.
Background
Paraffin is usually present in the crude oil in the formation in a molten state, and as crude oil is produced from the formation to the surface, the temperature of the crude oil decreases, causing the crude oil to precipitate from the paraffin, thereby plugging the crude oil transfer lines; meanwhile, as the temperature is reduced, the viscosity of the crude oil is increased, which results in increased friction resistance and flow viscosity of the crude oil in the pipeline, so that the crude oil is generally required to be heated in the crude oil transportation process.
At present, crude oil is heated in an oil field mainly by a coal-fired boiler heating mode, an oil-fired boiler heating mode, an electromagnetic heating mode, an electric tracing band heating mode and the like. The traditional coal-fired and fuel-fired heating mode can generate larger air pollution, and urgent countermeasures are needed. Meanwhile, the energy efficiency ratio of the electromagnetic heating mode to the electric tracing band heating mode is less than 1, large electric energy needs to be consumed when crude oil in an oil field is heated, and the economical efficiency of the operation cost needs to be improved.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air energy heat pump system for crude oil heating for solve one or more problems that current heating methods exists.
According to the utility model discloses an aim at, provide an air energy heat pump system for crude oil heating, include:
the first water tank is used for storing water with the water temperature of a first temperature and comprises a first water outlet pipe and a second water outlet pipe;
the air energy heat pump is connected with the first water tank and used for heating water in the first water tank;
the second water tank is used for storing water with the water temperature of a second temperature and comprises a third water outlet pipe; the second temperature is higher than the first temperature;
the water source heat pump is used for heating the water in the second water tank by utilizing the water in the first water tank and comprises a first heat pump water inlet pipe, a second heat pump water inlet pipe, a first heat pump water outlet pipe and a second heat pump water outlet pipe; the first heat pump water inlet pipe is connected with a first water outlet pipe of the first water tank; the water inlet pipe of the second heat pump is connected with a third water outlet pipe of the second water tank;
the heat exchanger is used for heating the crude oil and comprises a heat exchanger water inlet and a heat exchanger water outlet; the water inlet of the heat exchanger is connected with a second water outlet pipe of the first water tank and a second heat pump water outlet pipe of the water source heat pump together;
and the valves are arranged on the water inlet pipes and the water outlet pipes.
In an exemplary embodiment of the present invention, the first heat pump outlet pipe is connected to the air-source heat pump; and the water outlet of the heat exchanger is connected with the second water tank and the air-source heat pump together.
In an exemplary embodiment of the present invention, the heating system further includes:
the first circulating pump is connected with the first water tank and the water source heat pump;
and the second circulating pump is connected with the second water tank and the water source heat pump.
In an exemplary embodiment of the present invention, the first circulation pump or the second circulation pump includes a plurality of sets, each set of the first circulation pump is connected to the first water tank, each set of the second circulation pump is connected to the second water tank.
In an exemplary embodiment of the present invention, the heat exchanger includes:
the first heat exchanger comprises a first heat exchanger water inlet and a first heat exchanger water outlet;
the second heat exchanger comprises a second heat exchanger water inlet and a second heat exchanger water outlet;
the first heat exchanger water inlet and the second heat exchanger water inlet are both connected with the second heat pump water outlet pipe and the second water outlet pipe of the first water tank, and the first heat exchanger water outlet and the second heat exchanger water outlet are both connected with the second water tank and the air-source heat pump.
In an exemplary embodiment of the invention, the air-source heat pump comprises a plurality of groups.
In an exemplary embodiment of the present invention, the second water tank further includes:
a fourth water inlet for introducing an external water source into the second water tank;
and the fourth water outlet is used for conveying the water of the second water tank to the outside.
In an exemplary embodiment of the present invention, the water source heat pump is a cascade high temperature water source heat pump.
In an exemplary embodiment of the present invention, the heat exchanger is a double pipe heat exchanger.
In an exemplary embodiment of the present invention, the first water tank, the second water tank, the air-source heat pump, the water-source heat pump and the heat exchanger are skid-mounted structures.
The crude oil at a heating station is heated by consuming a small amount of electric energy, taking air as a heat source and taking refrigerant and water as heat carriers. The utility model discloses an aspect can consume a small amount of electric energy and heat crude oil. Because the utility model discloses an electric energy can not produce the pollution, green to the surrounding environment as the power supply. On the other hand the utility model discloses only need one set of heating system, contain two kinds of working methods promptly, switch simply, equipment cost is low, and the flexibility is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of the air energy heat pump system for heating crude oil according to the present invention in one operation mode;
fig. 2 is a schematic diagram of a structure of a working mode of the air energy heat pump system for heating crude oil according to the present invention.
1. A first water tank; 2. a second water tank; 3. an air heat energy pump; 4. a heat exchanger; 5. a water source heat pump; 6. a first circulation pump; 7. a second circulation pump; 41. a first heat exchanger; 42. a second heat exchanger.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present invention.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first" and "second", etc. are used merely as labels, and are not limiting on the number of their objects.
As shown in fig. 1, the air-source heat pump system for heating crude oil according to the present embodiment includes a first water tank 1, a second water tank 2, an air-source heat pump 3, a heat exchanger 4, and a water-source heat pump 5. The first water tank 1 stores water with a first temperature, and comprises a first water outlet pipe and a second water outlet pipe. The air energy heat pump 3 is connected with the first water tank 1 and used for heating water in the first water tank. The second water tank 2 is filled with water with a second temperature, and comprises a third water outlet pipe, and the second temperature is higher than the first temperature. The water source heat pump 5 is used for heating water in the second water tank by using water in the first water tank and comprises a first heat pump water inlet pipe, a second heat pump water inlet pipe, a first heat pump water outlet pipe and a second heat pump water outlet pipe; the water inlet pipe of the first heat pump is connected with the first water outlet pipe of the first water tank; the inlet pipe of the second heat pump is connected with the third outlet pipe of the second water tank. The heat exchanger 4 is used for heating crude oil and comprises a heat exchanger water inlet and a heat exchanger water outlet, and the heat exchanger water inlet is connected with a second water outlet pipe of the first water tank and a second heat pump water outlet pipe of the water source heat pump. Each water inlet pipe and each water outlet pipe can control the opening and closing and the flow rate of the water inlet pipe and the water outlet pipe through valves.
Through this structure, air-source heat pump 3 and water source heat pump 5 only need consume a small amount of electric energy to the air is as the heat source, uses refrigerant, water as the heat carrier, reaches the purpose of heating station crude oil, compares in current heating methods, and the energy consumption significantly reduces, and it is minimum to heat the energy consumption to crude oil under the same condition. Because the utility model discloses a clear renewable energy air is as initial heat source, and the electric energy can not produce the pollution to the surrounding environment as the power supply, and green has sustainability.
Next, the air-energy heat pump system for heating crude oil in the present exemplary embodiment will be further described.
The utility model discloses an air-source heat pump 3 is through compressor system operation work, and the heat heats the low temperature water of first water tank in the absorption air. The principle of the system is that a compressor compresses a refrigerant, the compressed refrigerant with the increased temperature passes through a condenser in a water tank to produce hot water, the heat-exchanged refrigerant returns to the compressor to perform the next cycle, in the process, air heat is absorbed and guided into the refrigerant through an evaporator, and the refrigerant is guided into low-temperature water in a first water tank to produce hot water. The utility model discloses an air can heat including but not limited to totally enclosed and semi-closed piston compressor, scroll compressor, semi-closed screw compressor etc. the utility model discloses do not carry out special restriction to this. The water source heat pump 5 transfers the heat energy of the low-temperature water to the high-temperature water by inputting a small amount of high-grade energy (such as electric energy).
The heating system has two working modes which can be respectively used in different seasons. For example, in winter, because the crude oil temperature is low, a higher temperature is required for heat exchange, at this time, the air source heat pump 3 heats the low-temperature water in the first water tank 1 by using the heat energy in the air, then the water source heat pump 5 further heats the high-temperature water in the second water tank 2 by using the water heated in the first water tank, so that the water temperature in the second water tank flowing out from the water source heat pump reaches the temperature capable of heating the crude oil, and then the water enters the heat exchanger 4 to heat the crude oil. In summer, because the crude oil temperature is lower, only need lower temperature can heat, air source heat pump 3 utilizes the heat energy in the air to heat the low temperature water in the first water tank 1, gets into heat exchanger 4, utilizes the low temperature water of this heating directly to heat crude oil, also can reach the purpose of heating crude oil. The two working modes can be switched by controlling the pipeline valve. Of course, the two working modes are not limited to the division between winter and summer, and can be used in other seasons, or any one of the working modes can be selected at any time according to actual conditions. Therefore, two working modes can be realized only by one set of heating equipment, the switching is simple, the equipment cost is low, and the flexibility is high.
The first and second water temperatures are not fixed values. For example, in winter, the low temperature water in the first water tank 1 may be only 0 to 10 degrees, and may reach 20 to 40 degrees after being heated by the air source heat pump. The second water temperature of the high-temperature water in the second water tank 2 can be 50-60 ℃, the high-temperature water can reach 70-80 ℃ after being heated by the water source heat pump, the crude oil can be heated by the water with the temperature of 70-80 ℃, and the smooth flowing of the crude oil is ensured. Under summer conditions. The water in the first water tank 1 can be normal temperature water, namely the first temperature is about 20-30 ℃, and can reach 40-50 ℃ after being heated by the air source heat pump, so that the crude oil in summer can be sufficiently heated. The first water temperature and the second water temperature can be other temperatures, for example, the first water temperature can be lower than zero, the second water temperature can be 20-40 ℃, and the like, and specific water temperatures are not described in detail herein.
In this exemplary embodiment, the first heat pump outlet pipe of the water source heat pump 5 can be connected with the air-source heat pump 3, and in the winter mode, after the low-temperature water of the first water tank transfers heat to the high-temperature water of the second water tank under the action of the refrigerant in the water source heat pump, the temperature of the low-temperature water is reduced, the introduced air-source heat pump can be heated, and then the low-temperature water is introduced into the first water tank, so that the water circulation in the first water tank is realized, and the cost is saved. Similarly, the water outlet of the heat exchanger can be connected with the second water tank and the air energy heat pump together. After the high-temperature water which exchanges heat in the heat exchanger 4 flows out of the heat exchanger, the temperature is reduced, but the higher temperature is still kept, so that the high-temperature water is introduced into the second water tank 2, the water source heat pump can be continuously utilized to heat the high-temperature water, the water circulation in the second water tank is realized, and the cost is saved. Under the summer mode, after the high-temperature water that carries out the heat exchange in heat exchanger 4 flowed out the heat exchanger, the temperature reduces, can directly get into air source heat pump and heat, the first water tank of rethread to this water circulation in the first water tank of realization.
In the present exemplary embodiment, the air-source heat pump system for heating crude oil further includes a first circulation pump 6 and a second circulation pump 7, the first circulation pump 6 is used for realizing water circulation of the first water tank, and the second circulation pump 7 is used for realizing water circulation of the second water tank. Furthermore, in order to ensure the continuous operation of the system, the first circulating pump or the second circulating pump comprises a plurality of groups in consideration of the conditions of maintenance, standby and the like.
In the present exemplary embodiment, the heat exchanger 4 includes a first heat exchanger 41 and a second heat exchanger 42. This structure is applicable to the occasion that needs heat crude oil such as oil field booster station and oil field oil gas gathering station, and first heat exchanger 41 can be used for heating the crude oil that gets into the website, is convenient for increase the processing such as waiting to crude oil, and second heat exchanger 42 is used for heating the crude oil that leaves the website, and its follow-up transportation of being convenient for is smooth. Thus, the first heat exchanger comprises a first heat exchanger water inlet and a first heat exchanger water outlet; the second heat exchanger comprises a second heat exchanger water inlet and a second heat exchanger water outlet; the water inlet of the first heat exchanger and the water inlet of the second heat exchanger are both connected with a second heat pump water outlet pipe of the water source heat pump and a second water outlet pipe of the first water tank, and the water outlet of the second heat exchanger are both connected with a third water inlet pipe of the second water tank and the air energy heat pump.
In the present exemplary embodiment, the air-source heat pump 3 includes a plurality of groups to heat the water in the first water tank by making full use of the heat energy in the air. The specific number of the air-source heat pumps is determined according to actual needs, and is not particularly limited herein.
In the present exemplary embodiment, the second tank further includes a fourth water inlet for introducing an external water source into the second tank, and a fourth water outlet for delivering water of the second tank to the outside. The external water source may be heating water. The high-temperature water in the second water tank can also be used for heating in winter and is sent into a heating pipeline. The water returned by the heating pipeline participates in heat exchange in the second water tank, and is sent into the heating pipeline after the temperature is increased, so that the multifunctional cyclic utilization of heat energy is realized.
In the exemplary embodiment, the water source heat pump 5 is a cascade high temperature water source heat pump to ensure that the water in the second water tank can be heated to 70-90 ℃, so as to ensure the heating quality of the crude oil, and at the same time, the temperature difference between the water and the crude oil can be increased to reduce the water supply flow, reduce the pipeline specification, reduce the water pump conveying energy and the like.
In the present exemplary embodiment, the heat exchanger 4 is a double pipe heat exchanger, which is relatively simple in construction; the high pressure can be resisted; the heat transfer area can be increased or decreased according to the needs; the proper selection of the inner diameter and the outer diameter of the pipe can make the flow velocity of the fluid larger, and the fluids of the two parts can do strict countercurrent, which is beneficial to heat transfer. The disadvantages are that: joints among pipes are more, and leakage is easy to occur; the heat transfer area per unit length of the heat exchanger is small.
In this exemplary embodiment, the first water tank 1, the second water tank 2, the air-source heat pump 3, the water-source heat pump 5 and the heat exchanger 4 can be integrally installed as a skid-mounted structure, that is, the first water tank, the second water tank, the air-source heat pump, the water-source heat pump and the heat exchanger are integrated on an integral base, and can be integrally installed and moved, the production and assembly of skid-mounted equipment are completed in a factory, the field installation workload is low, and the work can be performed only by completing the connection of the interface pipeline and external electrical equipment. Because the functional unit is integrated in a whole base, can conveniently wholly move, skid-mounted formula equipment compact structure reduces occupation of land than traditional mounting means, is applicable to occasions such as booster station, filling station.
According to the pipe connection mode as shown in the figure, the utility model discloses an air-source heat pump system for crude oil heating's two kinds of mode are specifically as follows:
working mode one
The valves M1, M2 and M3 are opened, and the valves M4 and M5 are closed.
The air energy heat pump is used for heating the low-temperature water in the first water tank, and the water enters the water source heat pump from the water inlet pipe of the first heat pump through the circulating pump and the valves M1 and M3 after being heated; meanwhile, the high-temperature water in the second water tank enters the water source heat pump from the water inlet pipe of the second heat pump through a valve M2. In the water source heat pump, the water in the first water tank transfers the temperature of the water to the water in the second water tank, then the water in the first water tank flows out from a first heat pump water outlet pipe and enters an air source heat pump to carry out the next circulation, the water in the second water tank flows out from a second heat pump water outlet pipe and enters a heat exchanger through a heat exchanger water inlet to heat crude oil, and then the water flows out from a heat exchanger water outlet and enters a high-temperature water tank to carry out the next circulation.
Working mode two
The valves M2, M3 are closed, and the valves M1, M4, M5 are opened.
The air source heat pump is used for heating low-temperature water in the first water tank, then the water is directly introduced into a water inlet pipe of the heat exchanger through valves M1 and M4, enters the heat exchanger to heat crude oil, then flows out of a water outlet of the heat exchanger and enters the air source heat pump to perform the next circulation.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (10)
1. An air-source heat pump system for heating crude oil, comprising:
the first water tank is used for storing water with the water temperature of a first temperature and comprises a first water outlet pipe and a second water outlet pipe;
the air energy heat pump is connected with the first water tank and used for heating water in the first water tank;
the second water tank is used for storing water with the water temperature of a second temperature and comprises a third water outlet pipe; the second temperature is higher than the first temperature;
the water source heat pump is used for heating the water in the second water tank by utilizing the water in the first water tank and comprises a first heat pump water inlet pipe, a second heat pump water inlet pipe, a first heat pump water outlet pipe and a second heat pump water outlet pipe; the first heat pump water inlet pipe is connected with a first water outlet pipe of the first water tank; the water inlet pipe of the second heat pump is connected with a third water outlet pipe of the second water tank;
the heat exchanger is used for heating the crude oil and comprises a heat exchanger water inlet and a heat exchanger water outlet; the water inlet of the heat exchanger is connected with a second water outlet pipe of the first water tank and a second heat pump water outlet pipe of the water source heat pump together;
and the valves are arranged on the water inlet pipes and the water outlet pipes.
2. The air-energy heat pump system for heating crude oil according to claim 1, wherein,
the first heat pump water outlet pipe is connected with the air-source heat pump;
and the water outlet of the heat exchanger is connected with the second water tank and the air-source heat pump together.
3. The air-source heat pump system for heating crude oil according to claim 2, further comprising:
the first circulating pump is connected with the first water tank and the water source heat pump;
and the second circulating pump is connected with the second water tank and the water source heat pump.
4. The air-energy heat pump system for heating crude oil according to claim 3, wherein the first circulation pump or the second circulation pump comprises a plurality of sets, each set of the first circulation pump is connected to the first water tank, and each set of the second circulation pump is connected to the second water tank.
5. The air-source heat pump system for heating crude oil according to claim 3, wherein the heat exchanger comprises:
the first heat exchanger comprises a first heat exchanger water inlet and a first heat exchanger water outlet;
the second heat exchanger comprises a second heat exchanger water inlet and a second heat exchanger water outlet;
the first heat exchanger water inlet and the second heat exchanger water inlet are both connected with the second heat pump water outlet pipe and the second water outlet pipe of the first water tank, and the first heat exchanger water outlet and the second heat exchanger water outlet are both connected with the second water tank and the air-source heat pump.
6. The air-energy heat pump system for heating crude oil of claim 1, wherein the air-energy heat pump comprises a plurality of banks.
7. The air-energy heat pump system for heating crude oil of claim 1, wherein the second water tank further comprises:
a fourth water inlet for introducing an external water source into the second water tank;
and the fourth water outlet is used for conveying the water of the second water tank to the outside.
8. The air-source heat pump system for heating crude oil of claim 1, wherein the water-source heat pump is a cascade high temperature water-source heat pump.
9. The air-source heat pump system for heating crude oil according to claim 1, wherein the heat exchanger is a double pipe heat exchanger.
10. The air-source heat pump system for heating crude oil according to claim 1, wherein the first water tank, the second water tank, the air-source heat pump, the water-source heat pump and the heat exchanger are skid-mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822081097.XU CN209893636U (en) | 2018-12-12 | 2018-12-12 | Air energy heat pump system for heating crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822081097.XU CN209893636U (en) | 2018-12-12 | 2018-12-12 | Air energy heat pump system for heating crude oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209893636U true CN209893636U (en) | 2020-01-03 |
Family
ID=68990387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822081097.XU Active CN209893636U (en) | 2018-12-12 | 2018-12-12 | Air energy heat pump system for heating crude oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209893636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579298A (en) * | 2018-12-12 | 2019-04-05 | 西安奥德石油工程技术有限责任公司 | Heating crude oil air energy thermal pumping system |
-
2018
- 2018-12-12 CN CN201822081097.XU patent/CN209893636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579298A (en) * | 2018-12-12 | 2019-04-05 | 西安奥德石油工程技术有限责任公司 | Heating crude oil air energy thermal pumping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101839585B (en) | Solar energy-air source heat pump composite system suitable for microthermal climate | |
| CN102435033B (en) | Closed type circulation water cooling device and method thereof | |
| CN202955906U (en) | Cascade heat pump air heater and condensing unit applied to same | |
| CN211008973U (en) | Geothermal energy cascade utilization system | |
| CN209893636U (en) | Air energy heat pump system for heating crude oil | |
| CN202371930U (en) | Water and air dual-source heat pump unit | |
| CN204853759U (en) | It heats air conditioning system to stride critical CO2 heat pump | |
| CN204783320U (en) | Gas trigeminy supplies well cold water waste heat utilization system of system | |
| CN104180459A (en) | Air conditioning system | |
| CN103925729A (en) | Air-conditioning system and central air-conditioner with same | |
| CN112197447A (en) | Oil well heat energy recycling system | |
| CN207180025U (en) | Teat pump boiler and combined type water heater | |
| CN203810794U (en) | Ground heat exchanger structure of ground source heat pump air-conditioning system | |
| CN206602008U (en) | It is a kind of to utilize the system that day and night temperature difference is cooled down to transformer forced oil-circulation | |
| CN205980419U (en) | Mixed overlapping formula heat pump of intelligent regulation | |
| CN206362220U (en) | A kind of heat exchanger | |
| CN211451436U (en) | Two-stage throttling multi-temperature carbon dioxide heat pump unit | |
| CN204880470U (en) | Critical CO2 heat pump air conditioning system strides | |
| CN211176992U (en) | Air energy ground source heat pump concurrent heating system | |
| CN106705020A (en) | Self-heat-absorption type heat exchanger combination | |
| CN205119520U (en) | Solar collector thermal -collecting tube heating power switched systems | |
| CN111043647B (en) | System and method for improving heat supply efficiency of heat storage water tank | |
| CN210107815U (en) | Ground source heat pump efficiency hoisting device | |
| CN203203130U (en) | Solar heating device | |
| CN218096657U (en) | Geothermal heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230327 Address after: 710016 1st -10201-2, 2nd Floor, Shop 1, Langqin Bay, Fengcheng Fifth Road, Weiyang District, Xi'an City, Shaanxi Province Patentee after: Xi'an Muxing Yutai Technical Service Co.,Ltd. Address before: Room 1301, block F, Changhe international, No. 180, Fengcheng 8th Road, Xi'an Economic and Technological Development Zone, Shaanxi 710000 Patentee before: XI'AN AODE PETROLEUM ENGINEERING TECHNOLOGY CO.,LTD. |