CN210085395U - Gas collecting device of whole sledge pressurizing station - Google Patents
Gas collecting device of whole sledge pressurizing station Download PDFInfo
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- CN210085395U CN210085395U CN201920674931.8U CN201920674931U CN210085395U CN 210085395 U CN210085395 U CN 210085395U CN 201920674931 U CN201920674931 U CN 201920674931U CN 210085395 U CN210085395 U CN 210085395U
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Abstract
The utility model relates to a gas collecting device of a whole sledge booster station, which comprises a gas inlet and outlet separator, a booster device, an oil-gas separator, a gas-water separator and a metering valve group, which are integrally arranged on a workstation in a pipeline connection mode; the gas inlet end of the gas inlet separator is communicated with the gas inlet of the gas collecting device, the gas outlet end of the gas inlet separator is communicated with the oil-gas separator through a supercharging device, the oil-gas separator is communicated with a gas-water separator, the gas-water separator is communicated with a metering valve group, and the metering valve group is communicated with the gas outlet of the gas collecting device; the utility model has the advantages that: by the design of the integrated skid block for separating the incoming station, pressurizing gas and outputting and metering, a gas collecting device designed by the integrated skid block can replace one pressurizing station so as to realize the pressurizing effect; has the advantages of small occupied area, low investment cost and convenient and flexible installation.
Description
Technical Field
The utility model belongs to the technical field of coal bed gas collection equipment, especially, relate to a whole sledge booster station gas collecting device.
Background
China has rich coal bed gas resources, huge markets are still to be excavated, the exploitation and utilization of coal bed gas are greatly supported by national policies, the mine gas disasters and the environmental pollution are greatly reduced through the exploitation of coal bed gas, and the exploitation and utilization of coal bed gas have the effect of killing multiple birds with one stone: clean energy and great economic benefit can be generated by commercialization, and the method is a strategic national resource. Coal bed gas is generally mined in two ways: firstly, drilling and exploiting on the ground; and secondly, the underground gas pumping system pumps out the underground gas, the coal bed gas and the pumped gas which are mined by ground drilling can be utilized, the quantity of the gas exhausted by air can be greatly reduced after the ground mining and the pumping, the ventilation requirement of a coal mine is reduced, and the safety production condition of miners is improved.
Particularly, the ground drilling exploitation can not be directly utilized due to the low pressure of a wellhead, and needs to be carried or applied in situ through pressurization.
The front end pressurization is gathered to the gas gathering station by each well field coal bed gas and is carried in a centralized pressurization mode, the gas gathering station equipment mainly comprises an incoming station separating device, a pressurizing device, an outgoing station metering device and auxiliary production equipment, all the devices are arranged independently, the occupied area is large, the construction is complex, and the relocation is not flexible and mobile.
Disclosure of Invention
An object of the utility model is to overcome the not enough of prior art existence, and provide a collection separation of entering a station, pressure boost, measurement whole sledge pressure boost station gas collection device as an organic whole.
The utility model aims to solve the technical scheme that the gas collecting device of the whole sledge booster station comprises a gas inlet and separator, a booster device, an oil-gas separator, a gas-water separator and a metering valve group, which are integrally arranged on a workstation in a pipeline connection mode; the gas inlet end of the gas inlet separator is communicated with the gas inlet of the gas collecting device, the gas outlet end of the gas inlet separator is communicated with the oil-gas separator through the supercharging device, the oil-gas separator is communicated with the gas-water separator, the gas-water separator is communicated with the metering valve group, and the metering valve group is communicated with the gas outlet of the gas collecting device.
Preferably, a first cooler for cooling gas is installed between the oil-gas separator and the gas-water separator.
Preferably, a second cooler for cooling the lubricating oil is installed between the gas-oil separator and the supercharging device.
Preferably, an explosion-proof variable frequency motor is mounted on the supercharging device.
Preferably, the pressurizing device is a twin-screw compressor.
Preferably, the metering valve group comprises a pressure gauge, a thermometer, a pressure transmitter and a thermocouple which are sequentially connected to the pipeline.
Preferably, the pipeline where the metering valve group is located is connected with two pressure valves which are arranged in parallel, and the pressure valves are located between the gas-water separator and the metering valve group.
Preferably, the gas inlet separator and the oil-gas separator are internally provided with filter screens which are annularly arranged, and filter materials in the filter screens are of a folding structure.
Preferably, the air inlet and the air outlet of the air collecting device are arranged on the workstation.
The utility model has the advantages that: by the design of the integrated skid block for separating the incoming station, pressurizing gas and outputting and metering, a gas collecting device designed by the integrated skid block can replace one pressurizing station so as to realize the pressurizing effect; has the advantages of small occupied area, low investment cost and convenient and flexible installation; and the double-screw compressor is adopted and matched with the gas inlet separator, the oil-gas separator and the gas-water separator, so that clean coal bed gas can be obtained at a user, and the device has the advantages of simplicity in operation, convenience in maintenance, safety and reliability.
Drawings
Fig. 1 is the schematic diagram of the arrangement structure of the gas collecting device of the present invention.
Fig. 2 is a schematic view of the working flow of the gas collecting device of the present invention.
Fig. 3 is a schematic diagram of the structure of the filter screen in the gas inlet separator and the gas-oil separator of the present invention.
The reference numbers in the drawings are respectively: 1. a gas inlet separator; 2. a pressure boosting device; 3. an oil-gas separator; 4. a gas-water separator; 5. a metering valve bank; 6. a workstation; 7. an air inlet; 8. an air outlet; 9. a first cooler; 10. a second cooler; 11. an explosion-proof variable frequency motor; 12. a pressure valve; 13. filtering with a screen; 51. a pressure gauge; 52. a thermometer; 53. a pressure transmitter; 54. and a thermocouple.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawing 1: the utility model comprises a gas inlet separator 1, a supercharging device 2, an oil-gas separator 3, a gas-water separator 4 and a metering valve group 5 which are integrally arranged on a workstation 6 in a pipeline connection mode, wherein the workstation 6 can be a movable bracket or a fixed bracket; the gas inlet end of the gas inlet separator 1 is communicated with a gas inlet 7 of the gas collecting device, the gas inlet 7 is used for introducing coal bed gas, and the coal bed gas is subjected to water removal and impurity removal through the gas inlet separator 1; the gas outlet end of the gas inlet separator 1 is communicated with the oil-gas separator 3 through a supercharging device 2, and the pressure of the coal bed gas entering the oil-gas separator 3 is increased through the supercharging device 2, so that the separation is facilitated; the oil-gas separator 3 is communicated with the gas-water separator 4, and the cleanness of the natural gas separated from the coal bed gas is ensured through the oil-gas separator and the gas-water separator 4; the gas-water separator 4 is communicated with the metering valve group 5, the metering valve group 5 is communicated with the gas outlet 8 of the gas collecting device, and the discharge metering of natural gas can be controlled through the metering valve group 5; the air inlet 7 and the air outlet 8 of the gas collecting device are arranged on the workstation 6, so that the whole gas collecting device is designed integrally.
Through the integrated gas collecting device arranged as described above, as shown in fig. 2, the working principle is as follows: large-particle solid impurities and liquid water are removed from coal bed gas from a user low-pressure system through a gas inlet-gas separator 1, the cleanliness of inlet gas is guaranteed, and the filtered gas is pressurized through a pressurizing device 2 and purified through an oil-gas separator 3 and a gas-water separator 4; then the metering is carried out through a metering valve group 5, and finally the metering is discharged into a high-pressure system of a user.
A first cooler 9 for cooling gas is arranged between the oil-gas separator 3 and the gas-water separator 4, and can cool water and natural gas introduced into the gas-water separator 4, so that the separation efficiency of the gas-water separator 4 is higher; the inside of the gas-water separator 4 is a high-volume-weight demister which separates most of condensed water separated out after cooling from natural gas and ensures the cleanness of the natural gas.
Install the second cooler 10 that is used for cooling lubricating oil between oil and gas separator 3 and supercharging device 2, this second cooler 10 is the air cooler, combines the air cooler to receive the great characteristics of ambient temperature influence, and second cooler 10 fan configuration frequency conversion control, accurate control lubricating oil temperature avoids the system low temperature to go out water, worsens the lubrication, damages the compressor, ensures fan continuous operation simultaneously, avoids opening repeatedly and stopping.
The anti-explosion variable frequency motor 11 is mounted on the supercharging device 2 in combination with field output and working conditions, the anti-explosion variable frequency motor 11 adopts a flux linkage closed loop vector control technology, power consumption is matched in combination with actual torque of a compressor, and the energy-saving effect is good; the control precision is high, and the control precision of the rotating speed is within 0.2 percent; the response speed is high, and the response speed of frequency conversion adjustment is 200 ms; the current loop response is fast during acceleration, and the torque response can reach 750rad/s during low-frequency operation.
The supercharging device 2 is a double-screw compressor, reduces the compression ratio and the pressure difference of each stage of screw, reduces the internal leakage amount, improves the efficiency, reduces the power consumption and achieves the energy-saving effect.
The metering valve group 5 comprises a pressure gauge 51, a thermometer 52, a pressure transmitter 53 and a thermocouple 54 which are sequentially connected to a pipeline; the pipeline where the metering valve group 5 is located is connected with two pressure valves 12 which are arranged in parallel, namely the structure design of one use and one standby is adopted, the maintenance can be convenient, the maintenance can be carried out on line switching without stopping, and the pressure valves 12 are located between the gas-water separator 4 and the metering valve group 5.
As shown in fig. 3, a filter screen 13 is arranged in the gas inlet separator 1 and the gas-oil separator 3 in a circumferential direction, and the filter material in the filter screen 13 is of a folding structure.
The gas inlet and separator 1 is combined with the process characteristics of coal bed gas, coal ash impurities and liquid water drops are carried in the gas, and part of the gas also contains pipeline welding slag, sludge and the like; the design has the air inlet filter of aqueous vapor separation and accurate solid impurity separation effect, has adopted cyclone separation in principle, gravity settling separation, the microfiltration separation, the filter media of this filtration separation adopts foldable structure, improves filter media surface filtration area, the reduction resistance, improve filtration efficiency, increase of service life under the prerequisite of guaranteeing the minimum loss of inlet pressure, plays the effect of dewatering, impurity removal and steady voltage to guarantee supercharging device's long-term normal operating.
The oil-gas separator 3 adopts a high-precision special composite micron-sized filter material, the precision is less than 10um, the oil-gas separation effect is good, and the actual oil consumption can be effectively reduced by 30%. The filter material adopts a folding structure, so that the surface filtration area of the filter material is increased, the resistance is reduced, the filtration efficiency is improved, and the service life is prolonged. When oil gas is saturated, the pressure drop is 0.19bar, the resistance is effectively reduced, and energy conservation is realized. And an auxiliary high-efficiency cyclone system is arranged, so that 40% -100% of working conditions are guaranteed, the pre-separation effect is higher than 99.7%, and the working load of the oil core is greatly reduced.
In the above-mentioned workstation 6 in advance gas separator 1, supercharging device 2, oil and gas separator 3, gas-water separator 4, metering valve group 5, first cooler 9, second cooler 10, explosion-proof inverter motor 11, air inlet 7 and gas outlet 8, its best mode of arranging is: the gas inlet separator 1, the supercharging device 2 and the explosion-proof variable frequency motor 11 are sequentially arranged and are positioned on the same side of the workstation 6, and the gas inlet 7 and the gas outlet 8 are arranged on the same side; the second cooler 10, the oil-gas separator 3, the first cooler 9 and the gas-water separator 4 are sequentially arranged and are positioned at the other side of the workstation 6, the second cooler, the oil-gas separator 3, the first cooler 9 and the gas-water separator 4 are oppositely distributed, and the metering valve group 5 is positioned at one side edge of the second cooler and the gas-water separator; such structure is arranged for whole gas collecting device structure is more compact, and this mode of arranging more can promote whole gas collecting device's operating efficiency moreover.
The present invention is not limited to the above embodiments, and any change is made on the shape or material composition, and all the structural designs provided by the present invention are all the deformation of the present invention, which should be considered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a whole skid booster station gas collecting device which characterized in that: the device comprises a gas inlet separator (1), a supercharging device (2), an oil-gas separator (3), a gas-water separator (4) and a metering valve group (5), which are integrally arranged on a workstation (6) in a pipeline connection manner; the gas inlet end of the gas inlet separator (1) is communicated with a gas inlet (7) of the gas collecting device, the gas outlet end of the gas inlet separator (1) is communicated with the oil-gas separator (3) through the supercharging device (2), the oil-gas separator (3) is communicated with the gas-water separator (4), the gas-water separator (4) is communicated with the metering valve bank (5), and the metering valve bank (5) is communicated with a gas outlet (8) of the gas collecting device.
2. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: a first cooler (9) for cooling gas is arranged between the oil-gas separator (3) and the gas-water separator (4).
3. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: and a second cooler (10) for cooling lubricating oil is arranged between the oil-gas separator (3) and the supercharging device (2).
4. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: and an explosion-proof variable frequency motor (11) is installed on the supercharging device (2).
5. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: the supercharging device (2) is a double-screw compressor.
6. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: the metering valve group (5) comprises a pressure gauge (51), a thermometer (52), a pressure transmitter (53) and a thermocouple (54) which are sequentially connected to a pipeline.
7. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: the pipeline that metering valve group (5) place even has two pressure valve (12) that are parallel arrangement, just pressure valve (12) are located deareator (4) with between metering valve group (5).
8. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: the filter is characterized in that filter screens (13) which are arranged in the circumferential direction are arranged in the gas inlet separator (1) and the oil-gas separator (3), and filter materials in the filter screens (13) are of a folding structure.
9. The gas collecting device of the complete skid pressure boosting station as claimed in claim 1, wherein: and an air inlet (7) and an air outlet (8) of the air collecting device are arranged on the workstation (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674931.8U CN210085395U (en) | 2019-05-13 | 2019-05-13 | Gas collecting device of whole sledge pressurizing station |
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| CN201920674931.8U CN210085395U (en) | 2019-05-13 | 2019-05-13 | Gas collecting device of whole sledge pressurizing station |
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| CN210085395U true CN210085395U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499196A (en) * | 2019-05-13 | 2019-11-26 | 宁波鲍斯能源装备股份有限公司 | A kind of whole sledge booster station gas collecting apparatus |
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- 2019-05-13 CN CN201920674931.8U patent/CN210085395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499196A (en) * | 2019-05-13 | 2019-11-26 | 宁波鲍斯能源装备股份有限公司 | A kind of whole sledge booster station gas collecting apparatus |
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