CN214198187U

CN214198187U - Coal bed gas steady voltage row adopts device

Info

Publication number: CN214198187U
Application number: CN202023328651.3U
Authority: CN
Inventors: 王锦辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-14
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a coal bed gas steady voltage row adopts device relates to coal bed gas exploitation equipment technical field. The utility model discloses a cross valve, first surge tank, second surge tank and drain sump, the both sides of cross valve are provided with first surge tank and second surge tank respectively, and the rear portion of cross valve is provided with the separator tank, and the rear portion of separator tank is provided with the drain sump, and the front end of cross valve is connected with row gas production pipeline, and the both ends of cross valve are connected with first branch pipe and second branch pipe respectively, and the other end and the first surge tank of first branch pipe are connected. The utility model discloses a first surge tank and second surge tank, first surge tank and second surge tank can be in the coal bed gas flow surge, and the person in charge pressure is automatic when great is opened, cushions the coal bed gas, realizes the steady voltage, can conveniently carry out the drying to the moist coal bed gas after the separation through setting up the dehydration jar, and the procedure of being convenient for is collected the coal bed gas, improves the security of storing.

Description

Coal bed gas steady voltage row adopts device

Technical Field

The utility model belongs to the technical field of coal bed gas exploitation equipment, especially, relate to a coal bed gas steady voltage row adopts device.

Background

The coal bed gas is associated with coal, symbiotic gas resource, refers to hydrocarbon gas stored in coal bed, uses methane as main component, belongs to unconventional natural gas, hardly produces any waste gas in combustion, is good industrial, chemical, power generation and resident life fuel, mines and discharges the gas in coal bed, can greatly reduce the quantity of wind-exhausted gas, reduce the ventilation requirement of coal mine, reduce the gas explosion rate of coal mine by 70% to 85%, improve the safety production condition of miners, but the flow of the coal bed gas is extremely unstable during mining, can be safely mined after being stabilized by a pressure stabilizing and extracting device, and after retrieval, the utility model with patent number of CN 210977417U discloses a coal bed gas pressure stabilizing and extracting device, which realizes the buffer and pressure stabilization of the coal bed gas by arranging a buffer tank and matching with a self-operated pressure regulating valve, but has extremely poor stability during mining, the flow changes greatly, the prior art only sets up a small-size buffer tank and often is difficult to satisfy the user demand, when the coal bed gas is discharged in a large number in the twinkling of an eye, small-size buffer tank is difficult to effectively cushion, arrange the safe operation of adopting the device and cause the threat to holistic coal bed gas steady voltage, in addition, current device is only to carry out simple separation with the coal bed gas liquid gas mixture that the layer goes out, still contain more steam in the coal bed gas after the separation, if do not remove moisture wherein, when the coal bed gas gets into cryogenic liquefaction separator, these moisture can separate out or even freeze, thereby block up valve, pipeline, heat exchanger, influence the safe and stable operation of liquefaction device, in view of above two points, need improve current technique, in order to solve the problem that exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal bed gas steady voltage is arranged and is adopted device, through setting up first steady voltage jar, second steady voltage jar and drain sump, the setting of first steady voltage jar and second steady voltage jar can be arranged to adopt when being responsible for pressure great automatically opening at the coal bed gas, carry out the buffer memory to unnecessary coal bed gas, alleviate coal bed gas exploitation pressure, then treat when coal bed gas flow returns to normal, carry the coal bed gas of buffer memory to main collection in the passageway again, can increase the security that the coal bed gas was arranged and is adopted compared with current technique, the setting of drain sump can further dewater to the coal bed gas after steam-water separation, make moist coal bed gas become dry, be convenient for subsequent liquefaction is collected, it is not strong to have solved current technological steady voltage ability, the security is poor, and can't dry the coal bed gas after separating, inconvenient follow-up problem of collecting to the coal bed gas.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a coal bed gas pressure stabilizing, discharging and mining device, which comprises a four-way valve, a first pressure stabilizing tank, a second pressure stabilizing tank and a dewatering tank, wherein the two sides of the four-way valve are respectively provided with the first pressure stabilizing tank and the second pressure stabilizing tank, the rear part of the four-way valve is provided with a separating tank, the rear part of the separating tank is provided with the dewatering tank, the front end of the four-way valve is connected with a gas discharging and mining pipeline, the two ends of the four-way valve are respectively connected with a first branch pipe and a second branch pipe, the other end of the first branch pipe is connected with the first pressure stabilizing tank, the other end of the second branch pipe is connected with the second pressure stabilizing tank, the rear end of the four-way valve is connected with a main pipe, the other end of the main pipe is connected with the lower part of the separating tank, a first decompression valve is arranged on the first branch pipe, a second decompression valve is arranged on the second branch pipe, the other end of the first pressure stabilizing tank is connected with a third branch pipe, the other end of the second pressure stabilizing tank is connected with a fourth branch pipe, the other end of the third branch pipe and the other end of the fourth branch pipe are respectively connected with two sides of the separation tank, the upper part of the rear end of the separation tank is connected with a coal bed gas conveying pipe, the other end of the coal bed gas conveying pipe is connected with the bottom of the dewatering tank, and the upper part of the other side of the dewatering tank is connected with a coal bed gas discharge pipe.

Further, triethylene glycol waste liquid discharge pipe is installed to the bottom of dehydration jar, sets up triethylene glycol waste liquid discharge pipe and can make things convenient for the triethylene glycol waste liquid of dehydration jar bottom gathering to discharge smoothly, makes things convenient for personnel to handle or retrieve the waste liquid.

Further, be responsible for and install the governing valve of being responsible for and be responsible for the filter on being responsible for, be responsible for the governing valve and install in the front portion of being responsible for the filter, set up the governing valve of being responsible for on being responsible for and can control the break-make of being responsible for, be responsible for the filter and can carry out impurity filtering to the gas-liquid mixture body through being responsible for.

Further, digital display manometer is all installed to the upper end of first surge tank and the upper end of second surge tank, the drain pipe is installed to the bottom of knockout drum, through installing digital display manometer on two surge tanks, can make things convenient for personnel to look over the pressure in two surge tanks to avoid the too big potential safety hazard that produces of surge tank internal pressure, the drain pipe of knockout drum bottom setting can conveniently be arranged outside the water of separating.

Further, the third is divided and is managed to install third minute pipe governing valve and third minute pipe filter on, the fourth is divided and is managed to install fourth minute pipe governing valve and fourth minute pipe filter, the front portion at third minute pipe filter is installed to the third minute pipe governing valve, fourth minute pipe governing valve is installed in the front portion of fourth minute pipe filter, divides to manage through setting up the governing valve on the third is divided with the fourth minute, can make things convenient for the gas-liquid mixture body in personnel's control surge tank to the knockout drum flow, through installing the filter on two minutes pipes, can be convenient for carry out impurity filtering to the gas-liquid mixture body that gets into from two surge tanks, guarantees to arrange the cleanliness factor of back coal bed gas.

Further, the top of dehydration jar is provided with triethylene glycol and adds the mouth, the internally mounted that triethylene glycol adds the mouth has the valve that sprays, sets up triethylene glycol and adds the mouth and can make things convenient for personnel to add triethylene glycol to the dehydration jar you, through setting up the valve that sprays, can make triethylene glycol liquid evenly spray, makes it have the coal bed gas that rises to combine inseparabler, and is better to the drying effect of coal bed gas.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up first surge tank and second surge tank, first surge tank and second surge tank pass through the cross valve and adopt the access connection with coal bed gas owner row, when the main row adopts the interior flow of passageway suddenly to increase, connect the relief valve on two surge tank subchannels just can open automatically, the gas-liquid mixture body that the guide owner was arranged in adopting the passageway gets into two surge tanks and cushions, reduce the pressure in the main row adopts the passageway, when pressure diminishes, the relief valve is closed, personnel can be manual carry the main row with the gas-liquid in two surge tanks and adopt in the passageway, so that make the buffering preparation next time, only set up a small-size buffer tank mode on the mixed body row adopts the passageway with current technique, the utility model discloses buffer capacity is stronger, uses more stably.

2. The utility model discloses a set up the drain sump, the drain sump top is provided with triethylene glycol and adds the mouth, personnel can add triethylene glycol in the drain sump through adding the mouth, and spout downwards by the inside spray valve of drain sump, with let in the moist coal bed gas that rises from bottom to top in the drain sump fully combine, contain hydroxyl and ether linkage in the molecular structure of ethylene glycol, can form the hydrogen bond with water, there is extremely strong affinity to water, higher dehydration degree has, can adsorb the moisture in the moist coal bed gas, realize the drying to the coal bed gas, the storage of the follow-up coal bed gas of being convenient for is collected.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall plan view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a schematic view showing an internal structure of the dewatering tank of fig. 2 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a four-way valve; 2. a first surge tank; 3. a second surge tank; 4. a separation tank; 5. a dehydration tank; 6. A gas production pipeline; 7. a first branch pipe; 8. a second branch pipe; 9. a first pressure relief valve; 10. a second pressure relief valve; 11. a main pipe; 12. thirdly, pipe distribution; 13. a fourth branch pipe; 14. a main pipe regulating valve; 15. a main pipe filter; 16. a third branch regulating valve; 17. a third branched filter; 18. a fourth branch regulating valve; 19. a fourth tube-dividing filter; 20. a coal bed gas conveying pipe; 21. a coal bed gas discharge pipe; 22. A triethylene glycol addition port; 23. a spray valve; 24. a digital display pressure gauge; 25. a drain pipe; 26. and a triethylene glycol waste liquid discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model relates to a coal bed gas pressure stabilizing and drainage device, which comprises a four-way valve 1, a first pressure stabilizing tank 2, a second pressure stabilizing tank 3 and a dewatering tank 5, wherein the two sides of the four-way valve 1 are respectively provided with the first pressure stabilizing tank 2 and the second pressure stabilizing tank 3, the upper end of the first pressure stabilizing tank 2 and the upper end of the second pressure stabilizing tank 3 are both provided with a digital display pressure gauge 24, the rear part of the four-way valve 1 is provided with a separating tank 4, the rear part of the separating tank 4 is provided with the dewatering tank 5, the front end of the four-way valve 1 is connected with a drainage and gas production pipeline 6, the rear end of the four-way valve 1 is connected with a main pipe 11, the other end of the main pipe 11 is connected with the lower part of the separating tank 4, the main pipe 11 is provided with a main pipe regulating valve 14 and a main pipe filter 15, the main pipe regulating valve 14 is arranged at the front part of the main pipe filter 15, the two ends of the four-way valve 1 are respectively connected with a first branch pipe 7 and a second branch pipe 8, the other end of the first branch pipe 7 is connected with the first surge tank 2, the other end of the second branch pipe 8 is connected with the second surge tank 3, the first relief valve 9 is installed on the first branch pipe 7, the second relief valve 10 is installed on the second branch pipe 8, the other end of the first surge tank 2 is connected with the third branch pipe 12, the other end of the second surge tank 3 is connected with the fourth branch pipe 13, the other end of the third branch pipe 12 and the other end of the fourth branch pipe 13 are respectively connected with two sides of the separation tank 4, the third branch pipe 12 is provided with the third branch pipe regulating valve 16 and the third branch pipe filter 17, the fourth branch pipe 13 is provided with the fourth branch pipe regulating valve 18 and the fourth branch pipe filter 19, the third branch pipe regulating valve 16 is installed in front of the third branch pipe filter 17, the fourth branch pipe regulating valve 18 is installed in front of the fourth branch pipe filter 19, when the coal bed gas flow suddenly increases, the pressure in the person in charge 11 just can increase fast, install first relief valve 9 and second relief valve 10 on first minute pipe 7 and second minute pipe 8 this moment and just can open automatically, carry the coal bed gas-liquid mixture body that increases in first surge tank 2 and the second surge tank 3, for being responsible for 11 partial pressures, after being responsible for 11 pressure stabilization, personnel can open the third minute pipe governing valve 16 of installing on third minute pipe 12, the fourth minute pipe governing valve 18 of installing on fourth minute pipe 13 is opened, make the gas-liquid entering knockout drum 4 of buffer tank buffering carry out gas-liquid separation, install third minute pipe filter 17 on third minute pipe 12 and install fourth minute pipe filter 19 on fourth minute pipe 13 and can carry out impurity filtering to the gas-liquid mixture body in the buffer tank, so, can greatly increase the security of coal bed gas exploitation.

Referring to fig. 2-3, the upper portion of the rear end of the separation tank 4 is connected with a coal bed gas conveying pipe 20, the bottom of the separation tank 4 is provided with a drain pipe 25, the other end of the coal bed gas conveying pipe 20 is connected with the bottom of the dewatering tank 5, the top end of the dewatering tank 5 is provided with a triethylene glycol adding port 22, a spray valve 23 is installed inside the triethylene glycol adding port 22, the bottom of the dewatering tank 5 is provided with a triethylene glycol waste liquid discharge pipe 26, the upper portion of the other side of the dewatering tank 5 is connected with a coal bed gas discharge pipe 21, when in use, a valve port at the front end of the four-way valve 1 is connected with a gas discharge pipeline 6, coal bed gas in the coal bed enters the main pipe 11 through the four-way valve 1, then is filtered by the main pipe filter 15 on the main pipe 11 and then is discharged into the separation tank 4, gas and liquid in the separation tank 4 are separated, liquid is discharged from the drain pipe 25 at the bottom of the separation tank 4, and coal bed gas enters the dewatering tank 5 through the coal bed gas conveying pipe 20, the drying is realized by combining triethylene glycol sprayed by a spray valve 23 in the dehydration tank 5, the dried triethylene glycol is discharged into a coal bed gas collection device through a coal bed gas discharge pipe 21, and the triethylene glycol waste liquid is discharged through a triethylene glycol waste liquid discharge pipe 26.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.

Claims

1. The utility model provides a coal bed gas steady voltage row adopts device, includes cross valve (1), first surge tank (2), second surge tank (3) and dewatering tank (5), its characterized in that: a first surge tank (2) and a second surge tank (3) are respectively arranged on two sides of the four-way valve (1), a separation tank (4) is arranged at the rear part of the four-way valve (1), a dewatering tank (5) is arranged at the rear part of the separation tank (4), the front end of the four-way valve (1) is connected with a gas exhaust and production pipeline (6), the two ends of the four-way valve (1) are respectively connected with a first branch pipe (7) and a second branch pipe (8), the other end of the first branch pipe (7) is connected with the first surge tank (2), the other end of the second branch pipe (8) is connected with the second surge tank (3), the rear end of the four-way valve (1) is connected with a main pipe (11), the other end of the main pipe (11) is connected with the lower part of the separation tank (4), a first branch pipe (7) is provided with a first pressure relief valve (9), and a second branch pipe (8) is provided with a second branch pipe (10), the other end of first surge tank (2) is connected with third minute pipe (12), the other end of second surge tank (3) is connected with the fourth and divides pipe (13), the other end of third minute pipe (12) and the other end of fourth minute pipe (13) are connected respectively with the both sides of knockout drum (4), the rear end upper portion of knockout drum (4) is connected with coal bed gas conveyer pipe (20), the other end and the bottom of dewatering tank (5) of coal bed gas conveyer pipe (20) are connected, the opposite side upper portion of dewatering tank (5) is connected with coal bed gas discharge pipe (21).

2. The coal bed gas pressure stabilizing discharge and extraction device according to claim 1, characterized in that a triethylene glycol waste liquid discharge pipe (26) is installed at the bottom of the dewatering tank (5).

3. The coal bed gas pressure-stabilizing discharge and production device according to claim 1, wherein the main pipe (11) is provided with a main pipe regulating valve (14) and a main pipe filter (15), and the main pipe regulating valve (14) is arranged in front of the main pipe filter (15).

4. The coal bed gas pressure-stabilizing discharge and production device according to claim 1, wherein digital pressure gauges (24) are mounted at the upper ends of the first pressure-stabilizing tank (2) and the second pressure-stabilizing tank (3), and a drain pipe (25) is mounted at the bottom of the separation tank (4).

5. The coal bed gas pressure-stabilizing discharge and production device according to claim 1, wherein a third branch pipe regulating valve (16) and a third branch pipe filter (17) are installed on the third branch pipe (12), a fourth branch pipe regulating valve (18) and a fourth branch pipe filter (19) are installed on the fourth branch pipe (13), the third branch pipe regulating valve (16) is installed in the front of the third branch pipe filter (17), and the fourth branch pipe regulating valve (18) is installed in the front of the fourth branch pipe filter (19).

6. The coal bed gas pressure-stabilizing discharge and production device according to claim 1, wherein a triethylene glycol adding port (22) is arranged at the top end of the dewatering tank (5), and a spray valve (23) is installed inside the triethylene glycol adding port (22).