CN211852114U - Oil field emptying natural gas recovery device - Google Patents

Oil field emptying natural gas recovery device Download PDF

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Publication number
CN211852114U
CN211852114U CN201922306495.1U CN201922306495U CN211852114U CN 211852114 U CN211852114 U CN 211852114U CN 201922306495 U CN201922306495 U CN 201922306495U CN 211852114 U CN211852114 U CN 211852114U
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China
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natural gas
gas
tank
filter
oil field
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CN201922306495.1U
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Chinese (zh)
Inventor
鄢运德
陈绍云
常记佳
张勇
唐佳鑫
郭洪波
冉体文
惠延安
廖发明
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The utility model provides an oil field natural gas recovery unit that empties, including outer organism and the air exhaust device who is arranged in the extraction oil field natural gas, be provided with rose box, pressurized canister, compressor and gas pitcher in the outer organism, air exhaust device includes aspiration pump and drive assembly, and aspiration pump, rose box, pressurized canister, compressor, gas pitcher communicate in proper order, are provided with the hydrocarbon pump between the end of giving vent to anger of compressor and the gas pitcher. During the use, according to the oil field degree of depth, drive assembly adjusts the aspiration pump to suitable height, open the aspiration pump and take out the higher natural gas of oil field bottom concentration and carry to the rose box, the rose box filters the natural gas, natural gas after the filtration gets into the pressurization jar inside and pressurizes, natural gas after the pressurization gets into the compressor inside and compresses, natural gas after the last compression is injected into to the gas pitcher through the hydrocarbon pump with the natural gas after the compression, the natural gas after the compression is stored to the gas pitcher, the recovery to oil field unloading natural gas has been realized, the wasting of resources has been reduced.

Description

Oil field emptying natural gas recovery device
Technical Field
The utility model relates to an oil field exploitation technical field especially relates to an oil field unloading natural gas recovery unit.
Background
Almost all oil fields are of an oil-gas hybrid type, and a small amount of natural gas is extracted together with crude oil.
Although the content of the natural gas extracted along with the crude oil is very low, the natural gas is a suffocating gas, is flammable and explosive, and if the natural gas is freely discharged, the natural gas can affect the environment and the safety of personnel and can cause resource waste.
Therefore, how to recover the oil field emptying natural gas becomes the focus of attention of the inventor.
SUMMERY OF THE UTILITY MODEL
In order to realize the aim, the utility model provides an oil field unloading natural gas recovery unit to retrieve the oil field natural gas.
The utility model provides an oil field emptying natural gas recovery device, which comprises an outer machine body and an air extractor for extracting natural gas in an oil field, wherein a filter box, a pressure tank, a compressor and a gas tank are arranged in the outer machine body;
the air extraction device comprises an air extraction pump for extracting natural gas in the oil field and a driving assembly capable of driving the air extraction pump to move up and down so as to adjust the height of the air extraction pump;
the air inlet end of the filter box is communicated with the air pump, and the filter box is used for filtering the natural gas pumped by the air pump; the gas inlet end of the pressurizing tank is communicated with the gas outlet end of the filter box and is used for pressurizing the natural gas; the gas inlet end of the compressor is communicated with the gas outlet end of the pressurization tank and is used for compressing the natural gas pressurized by the pressurization tank; a hydrocarbon pump is arranged between the gas outlet end of the compressor and the gas tank, the hydrocarbon pump is used for injecting the natural gas compressed by the compressor into the gas tank, and the gas tank is used for storing the compressed natural gas.
The oil field emptying natural gas recovery device of the utility model is provided with an air extractor, a filter box, a pressure tank, a compressor and a gas tank, wherein, an air pump of the air extraction device is communicated with the air inlet end of the filter box, the air outlet end of the filter box is communicated with the air inlet end of the pressure tank, the air outlet end of the pressure tank is communicated with the air inlet end of the compressor, the air outlet end of the compressor is communicated with the air tank, when in use, the natural gas is extracted by the air extractor, the extracted natural gas is filtered by the filter box, the filtered natural gas enters the compressor after being pressurized by the pressurization tank, the compressor compresses the natural gas, and then pour into the gas pitcher with the compressed natural gas into, store the natural gas through the gas pitcher to realized the recovery to the oil field natural gas that empties, avoided the natural gas to discharge the influence that causes environment and personnel's safety wantonly, reduced the wasting of resources. Simultaneously, because the extraction element is including the aspiration pump that is arranged in the natural gas of extraction oil field and can drive the aspiration pump and reciprocate in order to adjust the drive assembly of the height of aspiration pump, when using, can be according to the oil field degree of depth, through drive assembly drive aspiration pump removal to adjust the aspiration pump to suitable height in the oil field, make the aspiration pump extract the higher natural gas of oil field bottom concentration, thereby guaranteed the concentration of the natural gas of extracting. Meanwhile, the natural gas is filtered through the filter box, and the particle impurities are left in the filter box, so that the purity of the natural gas is improved; the natural gas after filtering is pressurized through the pressurization tank, so that the running speed and the gas pressure of the natural gas in the device can be adjusted according to the use condition, and the recovery speed of the oil field emptying natural gas recovery device is improved.
In an embodiment of the present invention, the driving assembly includes a chain and a driving member;
the driving piece comprises a rotating rod and a hand wheel driving the rotating rod to rotate, one end of the chain is wound on the rotating rod, and the other end of the chain is connected to the top of the air suction pump.
In an embodiment of the present invention, the air extracting device further includes a fixing frame;
the driving assembly is arranged on the fixed frame, a chain box for accommodating the chain is arranged on the fixed frame, one end of the rotating rod is positioned in the chain box, a winding wheel is arranged at one end of the rotating rod, and one end of the chain is wound on the winding wheel;
the fixing frame is further provided with a guide wheel, and the chain is in contact with the outer wall of the guide wheel.
The utility model discloses an in the embodiment, the rose box includes hollow box and sets up filter screen in the box, the filter screen is located the inlet end of rose box with between the end of giving vent to anger of rose box.
In an embodiment of the present invention, a filter plate is disposed on the box body, a clamping groove is disposed on a side wall of the box body, the filter plate can enter into the box body or move out of the box body through the clamping groove, the filter plate includes a frame, and the filter screen is disposed in the frame;
and a sealing piece is arranged between the filter plate and the clamping groove.
In an embodiment of the present invention, the number of the filter plates is at least two;
the filter plates are arranged at intervals in sequence in the direction from the air inlet end of the filter box to the air outlet end of the filter box, and the aperture of the filter screens of the at least two filter plates is gradually reduced in the direction from the air inlet end of the filter box to the air outlet end of the filter box.
In an embodiment of the present invention, the outer casing includes a casing, the casing has an installation chamber and is located the gas pitcher room of installation chamber one side, rose box, pressurized canister the compressor and the hydrocarbon pump all is located in the installation chamber, the gas pitcher is located in the gas pitcher room.
In an embodiment of the present invention, the bottom of the gas tank chamber has a slide rail, a slide plate for bearing the gas tank is provided in the gas tank chamber, the slide plate can slide along the slide rail to move the gas tank out of the gas tank chamber or move the gas tank into the gas tank chamber.
In an embodiment of the present invention, the gas pressure measuring device further includes a gas pressure gauge for detecting the gas pressure at the gas inlet end of the gas tank.
In an embodiment of the present invention, the air pump is communicated with the air inlet of the filter box through an air pipe.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an oil field emptying natural gas recovery device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air extractor of the oilfield emptying natural gas recovery device according to an embodiment of the present invention;
fig. 3 is a partial sectional view of an air extractor of the oilfield blowdown natural gas recovery device according to an embodiment of the present invention;
fig. 4 is a schematic view of an internal structure of an external housing of the oilfield emptying natural gas recovery device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a filter box of the oil field emptying natural gas recovery device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pressure tank of the oil field emptying natural gas recovery device according to an embodiment of the present invention.
Description of reference numerals:
1: an air extraction device; 2: an air tube;
3: an outer body; 4: a barometer;
5: a gas tank chamber; 6: a slide plate;
7: a machine body door plate; 8: a tripod;
9: a chain case; 10: a rotating rod;
11: a hand wheel; 12: a chain;
13: an air pump; 14: mounting a frame plate;
15: a filter box; 16: a filter plate;
17: a pressurized tank; 18: a compressor;
19: a hydrocarbon pump; 20: a card slot;
21: a filter screen; 22: a motor;
23: a guide wheel; 24: a winding wheel;
25: an installation chamber; 26: a rotating shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "top", "bottom", "upper", "lower" (if present), and the like, are used in the orientation and positional relationship shown in the drawings, which are used for convenience in describing the present invention and for simplifying the description, and are not intended to indicate or imply that the device or element so 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.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The terms "first" and "second" (if any) in the description and claims of this application and the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Almost all oil fields are of an oil-gas hybrid type, and a small amount of natural gas is extracted together with crude oil. Although the content of the natural gas extracted along with the crude oil is very low, the natural gas is a suffocating gas, is flammable and explosive, and if the natural gas is freely discharged, the natural gas can affect the environment and the safety of personnel and can cause resource waste.
Therefore, how to recover the oil field emptying natural gas becomes the focus of attention of the inventor. Based on this, the utility model provides an oil field unloading natural gas recovery unit.
The following detailed description is made on the oil field emptying natural gas recovery device according to the present invention by specific embodiments:
fig. 1 is a schematic structural diagram of an oil field emptying natural gas recovery device according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of an air extractor of the oilfield emptying natural gas recovery device according to an embodiment of the present invention; fig. 3 is a partial sectional view of an air extractor of the oilfield blowdown natural gas recovery device according to an embodiment of the present invention; fig. 4 is a schematic view of an internal structure of an external housing of the oilfield emptying natural gas recovery device according to an embodiment of the present invention; fig. 5 is a schematic structural diagram of a filter box of the oil field emptying natural gas recovery device according to an embodiment of the present invention; fig. 6 is a schematic structural diagram of a pressure tank of the oil field emptying natural gas recovery device according to an embodiment of the present invention. Referring to fig. 1 to 6, the present embodiment provides an oil field emptying natural gas recovery device.
The oil field emptying natural gas recovery device comprises an outer machine body 3 and an air extraction device 1 for extracting natural gas in an oil field, wherein a filter box 15, a pressurization tank 17, a compressor 18 and a gas tank are arranged in the outer machine body 3;
the air extraction device 1 comprises an air extraction pump 13 for extracting natural gas in an oil field and a driving component capable of driving the air extraction pump 13 to move up and down so as to adjust the height of the air extraction pump 13;
the air inlet end of the filter box 15 is communicated with the air pump 13, and the filter box 15 is used for filtering the natural gas pumped by the air pump 13; the gas inlet end of the pressurizing tank 17 is communicated with the gas outlet end of the filter box 15 and is used for pressurizing natural gas; the air inlet end of the compressor 18 is communicated with the air outlet end of the pressurization tank 17 and is used for compressing the natural gas pressurized by the pressurization tank 17; a hydrocarbon pump 19 is arranged between the gas outlet end of the compressor 18 and the gas tank, the hydrocarbon pump 19 is used for injecting the natural gas compressed by the compressor 18 into the gas tank, and the gas tank is used for storing the compressed natural gas.
In this embodiment, the air pump 13 is communicated with the air inlet end of the filter box 15 through the air pipe 2, and other connection modes are certainly possible, and the natural gas in the air pump 13 can be conveyed to the filter box 15, which is not limited by the present invention.
Wherein, trachea 2 can be soft trachea, has better elasticity and bendability good, and certainly can also be the trachea of other types, does not do the restriction to this the utility model discloses.
During specific implementation, the air pump 13 may be electrically connected to an external power source through a first external switch, and the first external switch controls the air pump 13 to be turned on or turned off. Wherein, one end of the pressure tank 17 is fixedly provided with a motor 22 (as shown in fig. 6), the output end of the motor 22 is fixedly provided with a rotating shaft 26, the rotating shaft 26 is arranged inside the pressure tank 17, and the outer wall of the rotating shaft 26 is uniformly and fixedly provided with a plurality of blades. Motor 22 passes through second external switch and external power source electric connection, and this second external switch pressurizes the natural gas in the device through control pressurization jar 17 to control the natural gas at the inside pressure and the velocity of flow of device, promoted oil field unloading natural gas recovery unit's recovery rate.
In the present embodiment, the gas outlet end of the compressor 18 is communicated with the gas inlet end of the hydrocarbon pump 19, the gas outlet end of the hydrocarbon pump 19 is communicated with the gas inlet end of the gas tank, and the gas outlet end of the hydrocarbon pump 19 can be fixedly connected with the gas inlet end of the gas tank through a connecting flange.
Optionally, the compressor 18 and the hydrocarbon pump 19 are both electrically connected to an external power source through a third external switch, and the third external switch can control the start and stop of the compressor 18 and the hydrocarbon pump 19.
The oil field emptying natural gas recovery device provided by the embodiment comprises an air extracting device 1, a filter box 15, a pressurizing tank 17, a compressor 18 and a gas tank, wherein the air extracting device 1 comprises an air extracting pump 13 for extracting natural gas in an oil field and a driving component capable of driving the air extracting pump 13 to move up and down to adjust the height of the air extracting pump 13, the air extracting pump 13 is communicated with the gas inlet end of the filter box 15, the gas outlet end of the filter box 15 is communicated with the gas inlet end of the pressurizing tank 17, the gas outlet end of the pressurizing tank 17 is communicated with the gas inlet end of the compressor 18, the gas outlet end of the compressor 18 is communicated with the gas tank, when the oil field emptying natural gas recovery device is used, the natural gas is extracted through the air extracting device 1, the extracted natural gas is filtered through the filter box 15, the filtered natural gas enters the compressor 18 after being pressurized through the pressurizing tank 17, the compressor 18 compresses the natural gas, the natural gas is stored through the gas tank, so that the recovery of the oil field emptying natural gas is realized, the influence of the random emission of the natural gas on the environment and the personnel safety is avoided, and the resource waste is reduced. Meanwhile, the extraction device 1 comprises the air pump 13 for extracting the natural gas in the oil field and a driving assembly capable of driving the air pump 13 to move up and down to adjust the height of the air pump 13, so that the air pump 13 can be adjusted to a proper height in the oil field according to the depth of the oil field when the extraction device is used, the natural gas with high concentration at the bottom of the oil field is extracted by the air pump 13, and the concentration of the extracted natural gas is ensured. Meanwhile, the natural gas is filtered through the filter box 15, and particle impurities are left in the filter box 15, so that the purity of the natural gas is improved; the natural gas after filtering is pressurized through the pressurizing tank 17, so that the running speed and the gas pressure of the natural gas in the device can be adjusted according to the use condition, and the recovery speed of the oil field emptying natural gas recovery device is improved.
In specific implementation, a barometer 4 may be further provided, and the gas pressure at the gas inlet end of the gas tank is detected by the barometer 4. The output end of the barometer 4 is arranged at one side of the connecting flange. When the gas tank is used, whether the gas tank is full of gas or not can be judged by observing the numerical value of the barometer 4, so that the gas tank can be replaced in time.
In this embodiment, the barometer 4 is an YN-60 type barometer, but may be other types of barometers, which is not limited by the present invention.
Referring to fig. 2, in the present embodiment, the air extractor 1 specifically includes: a suction pump 13 and a drive assembly. Wherein the driving assembly comprises a chain 12 and a driving element; the driving piece comprises a rotating rod 10 and a hand wheel 11 driving the rotating rod 10 to rotate, one end of a chain 12 is wound on the rotating rod 10, and the other end of the chain 12 is connected to the top of the air suction pump 13.
In this embodiment, the number of the chains 12 is at least one, and when one chain 12 is used, the up-and-down movement of the air pump 13 can be realized only by rotating one hand wheel 11, and the operation of height adjustment is simple and convenient. When the chain 12 is multiple, for example two (as shown in fig. 2), the chains 12 are respectively fixedly connected with two sides of the top of the air pump 13, so that the connection between the air pump 13 and the driving member is more stable, safe and reliable.
Specifically, the air extraction device 1 further comprises a fixing frame; in this embodiment, the fixing frame is specifically a tripod 8, and of course, in other implementation manners, the fixing frame may also be a tetrapod or a hanger, and the like, which is not limited by the present invention.
Circular through-hole has been seted up at the top middle part of mount, and this circular through-hole is used for fixed trachea 2, and the shape of through-hole also can be square or oval etc. certainly, and is right here the utility model discloses do not make the restriction. The fixed mount is erected above the oilfield opening for supporting and fixing the suction pump 13.
Referring to fig. 3, the driving assembly is disposed on a fixing frame, a chain box 9 for accommodating the chain 12 is disposed on the fixing frame, one end of the rotating rod 10 is located in the chain box 9, a winding wheel 24 is disposed at one end of the rotating rod 10, and one end of the chain 12 is wound around the winding wheel 24. The guide wheel 23 is further arranged on the fixing frame, and the chain 12 is in contact with the outer wall of the guide wheel 23, so that friction between the chain 12 and the chain box 9 is prevented, and the chain 12 can be wound conveniently.
For example, the mount is tripod 8, during the specific use, erect tripod 8 in the top of oil field mouth, through rotating hand wheel 11, hand wheel 11 drives bull stick 10 and rotates, bull stick 10 rotates and drives wind-up wheel 24 and rotate, tighten up or relax along guide pulley 23 around establishing the chain 12 on wind-up wheel 24 in the chain box 9, it reciprocates to drive aspiration pump 13, thereby realized aspiration pump 13's altitude mixture control, like this according to the degree of depth in oil field, can descend aspiration pump 13 to the bottom in oil field, thereby take out the great natural gas of concentration, the recovery efficiency of oil field evacuation natural gas recovery unit has further been improved.
Fig. 4 is an internal schematic view of an outer body of the oilfield emptying natural gas recovery device provided by an embodiment of the present invention, as shown in fig. 4:
the outer body 3 includes a housing having a mounting chamber 25 and a gas tank chamber 5 on one side of the mounting chamber 25, the filter tank 15, the pressurizing tank 17, the compressor 18, and the hydrocarbon pump 19 are all located in the mounting chamber 25, and the gas tank is located in the gas tank chamber 5.
Wherein, the installation chamber 25 is internally and fixedly provided with an installation frame plate 14, the right side of the top of the installation frame plate 14 is fixedly provided with a filter box 15, the bottom of the installation frame plate 14 is sequentially and fixedly provided with a pressurizing tank 17 and a compressor 18 from right to left, and a hydrocarbon pump 19 is fixedly arranged above the compressor 18, so that the arrangement is favorable for smooth circulation of natural gas in the device, and the device has a compact structure and saves space. Of course, the filter box 15, the pressure tank 17, the compressor 18, and the hydrocarbon pump 19 inside the installation chamber 25 may have other layout manners, which is not limited by the present invention.
Optionally, the body door plate 7 is fixedly arranged outside the installation chamber 25, so that interference of an external environment on internal equipment of the installation chamber 25 is avoided, and neatness of the internal equipment of the installation chamber 25 is ensured.
The tank chamber 5 has a slide rail at its bottom, and a slide plate 6 for carrying a tank is provided in the tank chamber 5, the slide plate 6 being slidable along the slide rail to move the tank out of the tank chamber 5 or into the tank chamber 5.
Optionally, a connecting flange is arranged inside the gas tank chamber 5, and the gas outlet end of the hydrocarbon pump 19 is communicated with the gas inlet end of the gas tank through the connecting flange. The barometer 4 is embedded in the top of the gas tank chamber 5 and used for detecting the gas pressure at the gas inlet end of the gas tank.
During the specific use, through with installation room 25 and gas tank room 5 setting in the casing, be favorable to the holistic removal of oil field emptying natural gas recovery unit and get and put convenient operation is swift. Through at the inside fixed mount frame board 14 that is equipped with of installation room 25, the right side at mount frame board 14 top is fixed and is equipped with rose box 15, and the bottom of mount frame board 14 is from right to left fixedly is equipped with pressurization jar 17 and compressor 18 in proper order, and the top of compressor 18 is fixed and is provided with hydrocarbon pump 19, and the overall arrangement is simple, is favorable to the smooth circulation of natural gas in the device inside, and device compact structure, saves space. Through set up organism door plant 7 in installation room 25 outside, the internal plant that has avoided installation room 25 when organism door plant 7 is closed receives external environment's interference, has guaranteed the clean and tidy of the internal plant of installation room 25 simultaneously, and the internal plant of conveniently getting and putting installation room 25 when organism door plant 7 is opened. Through set up the slide 6 that is used for bearing the weight of the gas pitcher in the gas pitcher room 5, slide 6 can follow the slide rail and slide to realized that the gas pitcher shifts out or moves in from the gas pitcher room 5, got and put gas pitcher convenient operation, simple structure is reliable.
Fig. 5 is a schematic structural diagram of a filter box of the oil field emptying natural gas recovery device provided by an embodiment of the present invention, as shown in fig. 5:
the filter box 15 comprises a hollow box body and a filter screen 21 arranged in the box body, and the filter screen 21 is positioned between the air inlet end of the filter box 15 and the air outlet end of the filter box 15. The box is provided with a filter plate 16, the side wall of the box is provided with a clamping groove 20, the filter plate 16 can enter the box or move out of the box through the clamping groove 20, the filter plate 16 comprises a frame, and a filter screen 21 is arranged in the frame.
Wherein a sealing member is arranged between the filter plate 16 and the clamping groove 20. The sealing member may be, for example, a sealing ring, and the sealing ring may be sleeved on the edge of the filter plate 16, or the sealing ring is fixedly disposed in the clamping groove 20 to prevent the natural gas from flowing out from the joint between the filter plate 16 and the clamping groove 20. Of course, the sealing element may be other sealing elements, and the present invention is not limited thereto.
Specifically, the number of the filter plates 16 may be at least two, the at least two filter plates 16 are sequentially arranged at intervals in a direction from the air inlet end of the filter box 15 to the air outlet end of the filter box 15, and the aperture of the filter screen 21 of the at least two filter plates 16 is gradually reduced in a direction from the air inlet end of the filter box 15 to the air outlet end of the filter box 15.
For example: when the filter 16 is two, the aperture of the filter screen 21 that is located the inlet end of rose box 15 is greater than the aperture of the filter screen 21 that is located the outlet end of rose box 15, the natural gas that gets into rose box 15 from the inlet end of rose box 15 passes through the filter 16 of large aperture earlier, pass through the filter 16 of small aperture again, end outflow from giving vent to anger of rose box 15 at last, the particulate impurity in the natural gas is filtered in proper order by two-layer filter 16 for collect comparatively clean natural gas in the device.
Referring to fig. 5, when there are three filter plates 16, the aperture of the filter screen 21 located at the air inlet end of the filter box 15 is larger than that of the middle filter screen 21, the aperture of the middle filter screen 21 is larger than that of the filter screen 21 located at the air outlet end of the filter box 15, the natural gas entering the filter box 15 from the air inlet end of the filter box 15 firstly passes through the large-aperture filter plate 16, then passes through the middle-aperture filter plate 16, finally passes through the small-aperture filter plate 16, flows out from the air outlet end of the filter box 15, and the particulate impurities in the natural gas are sequentially filtered by the three filter plates 16, so that the purity of the natural gas in the device is further improved.
During the specific use, the natural gas that air suction pump 13 was taken out passes through the inlet end entering rose box 15 inside of rose box 15, when the inlet end flow direction rose box 15 of following rose box 15 was given vent to anger to hold, can pass through filter 16, can set up two and above filter 16 according to actual need, the natural gas passes through large aperture filter 21's filter 16 earlier, pass through small aperture filter 21's filter 16 in proper order again, end outflow of giving vent to anger from rose box 15 at last, particulate matter in the natural gas is because of can't passing through filter screen 21 and is stayed on filter screen 21, the filtration of natural gas has been realized, the purity of natural gas has been improved. When the particle impurities on the filter screen 21 are too much to be cleaned, the filter screen 16 is drawn out from the filter box 15 along the clamping groove 20, and the operation is simple and convenient.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The oil field emptying natural gas recovery device is characterized by comprising an outer machine body and an air extraction device for extracting natural gas in an oil field, wherein a filter box, a pressurization tank, a compressor and a gas tank are arranged in the outer machine body;
the air extraction device comprises an air extraction pump for extracting natural gas in the oil field and a driving assembly capable of driving the air extraction pump to move up and down so as to adjust the height of the air extraction pump;
the air inlet end of the filter box is communicated with the air pump, and the filter box is used for filtering the natural gas pumped by the air pump; the gas inlet end of the pressurizing tank is communicated with the gas outlet end of the filter box and is used for pressurizing the natural gas; the gas inlet end of the compressor is communicated with the gas outlet end of the pressurization tank and is used for compressing the natural gas pressurized by the pressurization tank; a hydrocarbon pump is arranged between the gas outlet end of the compressor and the gas tank, the hydrocarbon pump is used for injecting the natural gas compressed by the compressor into the gas tank, and the gas tank is used for storing the compressed natural gas.
2. The oilfield blowdown natural gas recovery device of claim 1, wherein the drive assembly comprises a chain and a drive member;
the driving piece comprises a rotating rod and a hand wheel driving the rotating rod to rotate, one end of the chain is wound on the rotating rod, and the other end of the chain is connected to the top of the air suction pump.
3. The oilfield blowdown natural gas recovery device of claim 2, wherein the gas extraction device further comprises a mount;
the driving assembly is arranged on the fixed frame, a chain box for accommodating the chain is arranged on the fixed frame, one end of the rotating rod is positioned in the chain box, a winding wheel is arranged at one end of the rotating rod, and one end of the chain is wound on the winding wheel;
the fixing frame is further provided with a guide wheel, and the chain is in contact with the outer wall of the guide wheel.
4. The oilfield blowdown natural gas recovery device of any one of claims 1 to 3, wherein the filter tank comprises a hollow tank body and a filter screen disposed within the tank body, the filter screen being located between an inlet end of the filter tank and an outlet end of the filter tank.
5. The oilfield vented natural gas recovery device of claim 4, wherein the box is provided with a filter plate, the side wall of the box is provided with a clamping groove, the filter plate can enter into or move out of the box through the clamping groove, the filter plate comprises a frame, and the filter screen is arranged in the frame;
and a sealing piece is arranged between the filter plate and the clamping groove.
6. The oil field vent natural gas recovery device of claim 5, wherein there are at least two filter panels;
the filter plates are arranged at intervals in sequence in the direction from the air inlet end of the filter box to the air outlet end of the filter box, and the aperture of the filter screens of the at least two filter plates is gradually reduced in the direction from the air inlet end of the filter box to the air outlet end of the filter box.
7. The oilfield blowdown natural gas recovery device of any of claims 1 to 3, wherein the outer housing comprises a housing having an installation chamber and a gas canister chamber located to one side of the installation chamber, the filter tank, pressurised canister, compressor and hydrocarbon pump all being located within the installation chamber, the gas canister being located within the gas canister chamber.
8. The oilfield blowdown natural gas recovery device of claim 7, wherein the tank compartment has a skid rail at a bottom thereof, and a skid plate for carrying the gas tank is disposed within the tank compartment, the skid plate being slidable along the skid rail to move the gas tank out of the tank compartment or into the tank compartment.
9. The oilfield blowdown natural gas recovery device of any one of claims 1 to 3, further comprising a gas pressure gauge for detecting a gas pressure at the gas inlet end of the gas tank.
10. The oilfield blowdown natural gas recovery device of any one of claims 1 to 3, wherein the suction pump is in communication with the inlet end of the filter tank through an air pipe.
CN201922306495.1U 2019-12-20 2019-12-20 Oil field emptying natural gas recovery device Active CN211852114U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113007074A (en) * 2019-12-20 2021-06-22 中国石油天然气股份有限公司 Oil field emptying natural gas recovery device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113007074A (en) * 2019-12-20 2021-06-22 中国石油天然气股份有限公司 Oil field emptying natural gas recovery device
CN113007074B (en) * 2019-12-20 2024-07-30 中国石油天然气股份有限公司 Oil field blowdown natural gas recovery device

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