CN217899550U - Gas excess pressure energy recovery device - Google Patents
Gas excess pressure energy recovery device Download PDFInfo
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- CN217899550U CN217899550U CN202222197972.7U CN202222197972U CN217899550U CN 217899550 U CN217899550 U CN 217899550U CN 202222197972 U CN202222197972 U CN 202222197972U CN 217899550 U CN217899550 U CN 217899550U
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Abstract
The utility model discloses a gaseous excess pressure energy recuperation device, gaseous excess pressure energy recuperation device includes inflation subassembly, coupling assembling and compression subassembly, and the inflation subassembly is used for expanding the pressure of natural gas to the low pressure from the high pressure, and coupling assembling links to each other with the inflation subassembly to the energy that the inflation subassembly absorbed the natural gas inflation in-process and produced rotates with drive coupling assembling, and the compression subassembly links to each other with coupling assembling, so that coupling assembling drives compression assembly compressed air. The utility model discloses a gaseous excess pressure energy recuperation device has simple structure, low cost, can make full use of advantages such as energy in the natural gas.
Description
Technical Field
The utility model relates to an energy-conserving technical field specifically, involves a gaseous excess pressure energy recuperation device.
Background
The recycling of the energy of the waste heat and the residual pressure is one of the important contents in the field of industrial energy conservation, and the scientific and reasonable utilization of the energy of the waste heat and the residual pressure has great significance for realizing the aims of energy conservation and emission reduction in China.
The natural gas pipe network has large amount of pressure energy and high quality, and has the potential of large-scale utilization and development. In the related art, the energy of the natural gas residual pressure cannot be fully utilized, and the problem of waste of a large amount of energy of the natural gas exists.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a simple structure, the gaseous excess pressure energy recuperation device that energy utilization is high.
The utility model discloses gaseous excess pressure energy recuperation device includes: the expansion component is used for expanding the pressure of the natural gas from high pressure to low pressure and can absorb the energy generated in the expansion process of the natural gas; a connection assembly connected to the expansion assembly such that the expansion assembly absorbs energy of the natural gas to drive the connection assembly; the compression assembly is connected with the connecting assembly so that the connecting assembly drives the compression assembly to compress air.
According to the utility model discloses gaseous excess pressure energy recuperation device sets up inflation subassembly, coupling assembling and compression subassembly, and the inflation subassembly turns into power drive compression subassembly work with the excess pressure energy of natural gas to make full use of the energy in the CNG, reduced the energy consumption of compression subassembly.
In some embodiments, the gas excess pressure energy recovery device further includes a first heat exchange assembly, the first heat exchange assembly includes a first channel and a second channel capable of performing heat exchange, the first channel is communicated with the expansion assembly, so that the natural gas flows into the expansion assembly through the first channel, one end of the second channel is communicated with one end of the compression assembly, so that the heat exchange medium in the compression assembly flows into the second channel to heat the natural gas in the first channel, and the other end of the second channel is communicated with the other end of the compression assembly, so that the medium flowing out through the second channel flows into the compression assembly to cool the compression assembly.
In some embodiments, the gas excess pressure energy recovery device further includes a second heat exchange assembly, the second heat exchange assembly includes a third channel and a fourth channel capable of performing heat exchange, one end of the third channel is communicated with the expansion assembly, so that the natural gas expanded by the expansion assembly flows into the third channel, one end of the fourth channel is communicated with the other end of the second channel, so that the medium in the second channel flows into the fourth channel to heat the natural gas in the third channel, and the other end of the fourth channel is communicated with the other end of the compression assembly, so that the medium flowing out by the fourth channel flows into the compression assembly to cool the compression assembly.
In some embodiments, the gas excess pressure energy recovery device further includes a cooling tower, and the cooling tower is respectively communicated with the other end of the second channel and one end of the fourth channel, so that when the ambient temperature of the cooling tower is lower than a preset value, the medium in the second channel flows into the fourth channel after being cooled by the cooling tower.
In some embodiments, the gas residual pressure energy recovery device further comprises a communication member, and the communication member is respectively communicated with the other end of the second channel and one end of the fourth channel, so that when the ambient temperature of the cooling tower is higher than a preset value, the communication member is communicated with the second channel and the fourth channel.
In some embodiments, the communication member includes a pipe having both ends respectively communicating with the other end of the second passage and one end of the fourth passage, and a valve provided in the pipe so that the valve is opened to communicate the second passage and the fourth passage through the pipe when the ambient temperature of the cooling tower is higher than a preset value, and so that the valve is closed to communicate the second passage and the fourth passage through the cooling tower when the ambient temperature of the cooling tower is lower than the preset value.
In some embodiments, the gas residual pressure energy recovery device further comprises a pump, the communication member and the cooling tower are both communicated with one end of the pump, and the other end of the pump is communicated with one end of the fourth channel, so that the medium flowing out through the cooling tower flows into the fourth channel through the pump, or the medium flowing out through the communication member flows into the fourth channel through the pump.
Drawings
Fig. 1 is a schematic structural diagram of an energy recovery device for excess gas pressure according to an embodiment of the present invention.
Reference numerals:
a gas residual pressure energy recovery device 100;
an expansion assembly 1;
a compression assembly 3;
a first heat exchange assembly 4; a first channel 41; a second channel 42;
a second heat exchange assembly 5; a third channel 51; a fourth channel 52;
a cooling tower 6; a communication member 7; a pipe 71; a valve 72; and a pump 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a gas excess pressure energy recovery device according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1, the gas residual pressure energy recovery device according to the embodiment of the present invention includes an expansion assembly 1, a connection assembly 2, and a compression assembly 3.
The expansion assembly 1 is used to expand the pressure of the natural gas from a high pressure to a low pressure and the expansion assembly 1 can absorb the energy generated during the expansion of the natural gas. Specifically, as shown in fig. 1, the inlet of the expansion assembly 1 is in communication with a natural gas source, so that natural gas is delivered to the expansion assembly 1 for expansion.
The connecting assembly 2 is connected with the expansion assembly 1 so as to absorb the energy of the natural gas in the expansion assembly 1 to drive the connecting assembly 2 to rotate. The compressing assembly 3 is connected with the connecting assembly 2, so that the connecting assembly 2 drives the compressing assembly 3 to compress air. Specifically, as shown in fig. 1, the expansion assembly 1 and the compression assembly 3 are connected through the connection assembly 2, and when the expansion assembly 1 expands the compressed natural gas, the expansion assembly 1 can absorb energy generated in the natural gas expansion process to drive the connection assembly 2 to rotate, so as to drive the compression assembly 3 to rotate, so that the compression assembly 3 compresses air, and the compressed air is provided to a user.
The utility model discloses gaseous excess pressure energy recuperation device 100 sets up expansion assembly 1, coupling assembling 2 and compression assembly 3, expansion assembly 1 turns into power drive compression assembly 3 work with the excess pressure energy of natural gas, thereby make the energy in the CNG obtain make full use of, the energy consumption of compression assembly 3 has been reduced, and gaseous excess pressure energy recuperation device 100 device reasonable in design, moreover, the steam generator is simple in structure, safety and reliability, do not need the input of any external energy, the economic benefits of gaseous excess pressure energy recuperation device 100 has been improved.
In some embodiments, the gas residual pressure energy recovery device 100 further comprises a first heat exchange assembly 4, the first heat exchange assembly 4 comprises a first channel 41 and a second channel 42 which can exchange heat, the first channel 41 is communicated with the expansion assembly 1, so that the natural gas flows into the expansion assembly 1 through the first channel 41, one end of the second channel 42 is communicated with one end of the compression assembly 3, so that the medium in the compression assembly 3 flows into the second channel 42 to heat the natural gas in the first channel 41, and the other end of the second channel 42 is communicated with the other end of the compression assembly 3, so that the medium flowing out through the second channel 42 flows into the compression assembly 3 to cool the compression assembly 3.
Specifically, as shown in fig. 1, an inlet of the first passage 41 is communicated with the gas source to flow the gas source natural gas into the first passage 41, an inlet of the second passage 42 is communicated with an outlet of the compression assembly 3 to flow a medium (for example, water) heated by heat exchange in the compression assembly 3 into the second passage 42 and exchange heat with the compressed natural gas in the first passage 41 to absorb cold energy in the compressed natural gas, so that the temperature of the compressed natural gas in the first passage 41 is increased to perform primary expansion on the compressed natural gas, the temperature of the medium in the second passage 42 is decreased, and an outlet of the first passage 41 is communicated with an inlet of the expansion assembly 1 to flow the warmed compressed natural gas into the expansion assembly 1 through the expansion assembly 1 to perform expansion, so that the cold energy in the compressed natural gas in the first passage 41 is recovered through the second passage 42, which can be used for cooling the compression assembly 3 and reducing energy consumption of the compression assembly 3.
In some embodiments, the gas residual pressure energy recovery device 100 further includes a second heat exchange assembly 5, the second heat exchange assembly 5 includes a third channel 51 and a fourth channel 52, which are capable of performing heat exchange, one end of the third channel 51 is communicated with the expansion assembly 1, so that the natural gas expanded by the expansion assembly 1 flows into the third channel 51, one end of the fourth channel 52 is communicated with the other end of the second channel 42, so that the medium in the second channel 42 flows into the fourth channel 52 to heat the natural gas in the third channel 51, and the other end of the fourth channel 52 is communicated with the other end of the compression assembly 3, so that the medium flowing out through the fourth channel 52 flows into the compression assembly 3 to cool the compression assembly 3.
Specifically, as shown in fig. 1, an inlet of the third channel 51 is communicated with an outlet of the expansion assembly 1 to flow the expanded natural gas into the third channel 51, an inlet of the fourth channel 52 is communicated with an outlet of the second channel 42, so that the medium of the second channel 42 flows into the fourth channel 52 to exchange heat with the expanded natural gas of the third channel 51 to further absorb the cold energy of the natural gas, so that the temperature of the natural gas in the third channel 51 is increased, the temperature of the medium in the fourth channel 52 is decreased, and an outlet of the fourth channel 52 is communicated with an inlet of the compression assembly 3, so that the medium in the fourth channel 52 flows into the compression assembly 3 to decrease the temperature of the compression assembly 3, so that the cold energy in the exhaust gas of the expansion assembly 1 is recovered through the fourth channel 52 and is used for cooling the compression assembly 3, thereby further reducing the energy consumption of the compression assembly 3.
In some embodiments, the gas residual pressure energy recovery device 100 further includes a cooling tower 6, and the cooling tower 6 is respectively communicated with the other end of the second passage 42 and one end of the fourth passage 52, so that when the ambient temperature of the cooling tower 6 is lower than a preset value, the medium in the second passage 42 is cooled by the cooling tower 6 and then flows into the fourth passage 52.
Specifically, as shown in fig. 1, the inlet of the cooling tower 6 is communicated with the outlet of the second passage 42, and the outlet of the cooling tower 6 is communicated with the inlet of the fourth passage 52, when the ambient temperature of the cooling tower 6 is reduced, the cooling tower 6 is opened, so that the medium in the second passage 42 of the cooling tower 6 flows into the cooling tower 6 to cool the medium, and then the cooled medium flows into the fourth passage 52, so that the medium absorbs the cold energy in the ambient environment through the cooling tower 6 to be used for cooling the compression assembly 3, and the energy consumption of the compression assembly 3 is further reduced.
In some embodiments, the gas residual pressure energy recovery device 100 further comprises a communication member 7, and the communication member 7 is respectively communicated with the other end of the second passage 42 and one end of the fourth passage 52, so that when the temperature around the cooling tower 6 is higher than the preset value, the communication member 7 is communicated with the second passage 42 and the fourth passage 52.
Specifically, as shown in fig. 1, an inlet of the communicating member 7 communicates with an outlet of the second passage 42, and an outlet of the communicating member 7 communicates with an inlet of the fourth passage 52, and when the temperature of the cooling tower 6 is higher than a preset value, the cooling tower 6 is closed, so that the medium in the second passage 42 flows into the fourth passage 52 through the communicating member 7, thereby sufficiently absorbing cold energy in the surrounding environment through cooperation of the communicating member 7 and the cooling tower 6 to reduce energy consumption of the compression assembly 3.
In some embodiments, the communication member 7 includes a pipe 71 and a valve 72, both ends of the pipe 71 are respectively communicated with the other end of the second passage 42 and one end of the fourth passage 52, and the valve 72 is disposed in the pipe 71, so that when the temperature around the cooling tower 6 is higher than a preset value, the valve 72 is opened to communicate the second passage 42 and the fourth passage 52 through the pipe 71, and when the temperature around the cooling tower 6 is lower than the preset value, the valve 72 is closed to communicate the second passage 42 and the fourth passage 52 through the cooling tower 6.
Specifically, as shown in fig. 1, an inlet of the pipe 71 communicates with an outlet of the second passage 42, an outlet of the pipe 71 communicates with an inlet of the fourth passage 52, and the valve 72 is a bypass valve and is provided in the pipe 71, whereby the valve 72 is opened so that the medium in the second passage 42 flows into the fourth passage 52 through the pipe 71 when the ambient temperature of the cooling tower 6 is higher than a preset value, and the valve 72 is closed so that the medium in the second passage 42 flows into the fourth passage 52 through the cooling tower 6 when the ambient temperature of the cooling tower 6 is lower than the preset value. Thereby, the arrangement of the communicating member 7 is made more reasonable.
In some embodiments, the gas residual pressure energy recovery device 100 further includes a pump 8, the communication member 7 and the cooling tower 6 are both communicated with one end of the pump 8, and the other end of the pump 8 is communicated with one end of the fourth passage 52, so that the medium flowing out through the cooling tower 6 flows into the fourth passage 52 through the pump 8, or the medium flowing out through the communication member 7 flows into the fourth passage 52 through the pump 8. Specifically, as shown in fig. 1, the inlet of the pump 8 communicates with the outlet of the cooling tower 6 and the outlet of the pipe 71, respectively, and the outlet of the pump 8 communicates with the inlet of the fourth passage 52, whereby the medium flowing out of the cooling tower 6 or the medium in the pipe 71 can be transported into the fourth passage 52 by the pump 8.
It is worth mentioning that: expansion component 1 can be the expander, and compression component 3 can be the air compressor machine, and coupling assembling 2 can be the connecting axle, and the impeller of expander passes through the connecting axle and links to each other with the air compressor machine, and from this, the expander passes through the connecting axle and drives the air compressor machine rotation.
The utility model discloses gaseous excess pressure energy recuperation device 100 working process as follows:
during operation, high-pressure natural gas is heated through the first channel 41 of the first heating assembly 4, enters the expansion assembly 3 to expand and reduce pressure and release excess pressure energy, low-pressure natural gas is in a low-temperature state, is heated through the third channel 51 of the second heat exchange assembly 5, and is conveyed to a downstream pipeline to convey compressed air to a user through the pipeline, meanwhile, the expansion assembly 1 drives the compression assembly 3 to work to produce compressed air, the compressed air is conveyed to the user through the pipeline, the pump 8 conveys a medium to the fourth channel 52 of the second heat exchange assembly 5 to recover cold energy of the natural gas, the medium is conveyed to the compression assembly 3 to recover excess heat of the compression assembly 3, the temperature of cooling water is increased, then the medium enters the second channel 42 of the first heating assembly 4 to transfer heat to the high-pressure natural gas, if the ambient temperature is low, the medium enters the cooling tower 6 to be cooled, otherwise, the valve 72 is opened, and the medium flows into the fourth channel 52 of the second heat exchange assembly 5 through the pipeline 71.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A gas residual pressure energy recovery device is characterized by comprising: an expansion assembly for expanding the pressure of the natural gas from a high pressure to a low pressure and the expansion assembly can absorb energy generated during expansion of the natural gas; a connection assembly connected to the expansion assembly such that the expansion assembly absorbs energy of the natural gas to drive the connection assembly; the compression assembly is connected with the connecting assembly so that the connecting assembly drives the compression assembly to compress air.
2. The excess gas pressure energy recovery device according to claim 1, further comprising a first heat exchange assembly, wherein the first heat exchange assembly comprises a first channel and a second channel which can exchange heat, the first channel is communicated with the expansion assembly, so that the natural gas flows into the expansion assembly through the first channel, one end of the second channel is communicated with one end of the compression assembly, so that a heat exchange medium in the compression assembly flows into the second channel to heat the natural gas in the first channel, and the other end of the second channel is communicated with the other end of the compression assembly, so that a medium flowing out through the second channel flows into the compression assembly to cool the compression assembly.
3. The excess gas pressure energy recovery device of claim 2, further comprising a second heat exchange assembly, wherein the second heat exchange assembly comprises a third channel and a fourth channel which can perform heat exchange, one end of the third channel is communicated with the expansion assembly, so that the natural gas expanded by the expansion assembly flows into the third channel, one end of the fourth channel is communicated with the other end of the second channel, so that the medium in the second channel flows into the fourth channel to heat the natural gas in the third channel, and the other end of the fourth channel is communicated with the other end of the compression assembly, so that the medium flowing out of the fourth channel flows into the compression assembly to cool the compression assembly.
4. The residual gas pressure energy recovery device according to claim 3, further comprising a cooling tower, wherein the cooling tower is respectively communicated with the other end of the second channel and one end of the fourth channel, so that when the ambient temperature of the cooling tower is lower than a preset value, the medium in the second channel flows into the fourth channel after being cooled by the cooling tower.
5. The residual gas pressure energy recovery device according to claim 4, further comprising a communication member that communicates with the other end of the second passage and one end of the fourth passage, respectively, so as to communicate the second passage and the fourth passage when the ambient temperature of the cooling tower is higher than a preset value.
6. The residual gas pressure energy recovery device according to claim 5, wherein the communication member comprises a pipe and a valve, both ends of the pipe are respectively communicated with the other end of the second passage and one end of the fourth passage, and the valve is disposed in the pipe so that when the ambient temperature of the cooling tower is higher than a preset value, the valve is opened to communicate the second passage and the fourth passage through the pipe, and when the ambient temperature of the cooling tower is lower than the preset value, the valve is closed to communicate the second passage and the fourth passage through the cooling tower.
7. The residual gas pressure energy recovery device according to claim 5, further comprising a pump, wherein the communication member and the cooling tower are both communicated with one end of the pump, and the other end of the pump is communicated with one end of the fourth passage, so that the medium flowing out through the cooling tower flows into the fourth passage through the pump, or the medium flowing out through the communication member flows into the fourth passage through the pump.
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| CN202222197972.7U CN217899550U (en) | 2022-08-19 | 2022-08-19 | Gas excess pressure energy recovery device |
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| CN202222197972.7U CN217899550U (en) | 2022-08-19 | 2022-08-19 | Gas excess pressure energy recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927867A (en) * | 2024-03-21 | 2024-04-26 | 中齐能源科技有限公司 | Micro-pressure air energy recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927867A (en) * | 2024-03-21 | 2024-04-26 | 中齐能源科技有限公司 | Micro-pressure air energy recovery device |
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