CN112361051A - Regulating valve group for petroleum exploitation - Google Patents

Regulating valve group for petroleum exploitation Download PDF

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Publication number
CN112361051A
CN112361051A CN202110032505.6A CN202110032505A CN112361051A CN 112361051 A CN112361051 A CN 112361051A CN 202110032505 A CN202110032505 A CN 202110032505A CN 112361051 A CN112361051 A CN 112361051A
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China
Prior art keywords
ring
temperature melting
piece
valve
channel
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Granted
Application number
CN202110032505.6A
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Chinese (zh)
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CN112361051B (en
Inventor
李伟青
宋波
张轩
尚丰光
侯卫华
吴东禹
刘家庆
陈振林
刘德刚
张立杰
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Shandong Huiqian Energy Technology Co ltd
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Shandong Baiyuan Technology Co Ltd
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Priority to CN202110032505.6A priority Critical patent/CN112361051B/en
Publication of CN112361051A publication Critical patent/CN112361051A/en
Application granted granted Critical
Publication of CN112361051B publication Critical patent/CN112361051B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20Excess-flow valves
    • F16K17/22Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20Excess-flow valves
    • F16K17/34Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/46Mechanical actuating means for remote operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The invention relates to the field of oil exploitation, and discloses an oil exploitation regulating valve group which comprises an angle valve and a pressure reducing valve, wherein the angle valve comprises an angle valve body, a valve core, a piston, a first high-temperature melting ring made of a low-melting-point material, a first elastic part and a plug, the first elastic part is sleeved in the first high-temperature melting ring, one end of the first elastic part penetrates through one end of the first high-temperature melting ring to be fixedly connected with the angle valve body, and the other end of the first elastic part is fixedly connected with the plug, so that the plug is abutted against the other end of the first high-temperature melting ring and the first elastic part is in a stretching; the relief pressure valve includes connecting pipe and hand wheel spare and the second high temperature melting circle of making by low melting point material, and when conflagration or high temperature environment, the first high temperature melting circle and the second high temperature melting circle that low melting point material made are melted by high temperature, and the first through-hole is blockked up to the end cap, realizes first self-closing, and the second high temperature melting circle melts and leads to the piston to close the oil outlet end of valve body, realizes that the second is said self-closing, and its security performance is better, convenient to use.

Description

Regulating valve group for petroleum exploitation
Technical Field
The invention relates to the field of oil exploitation, in particular to an oil exploitation pressure regulating valve bank.
Background
In oil production, the communication line from the wellhead to the outside usually comprises tubing for transporting crude oil and casing for transporting natural oil. The crude oil in the oil pipe often possesses certain pressure under the pumping effect of stratum crude oil pressure and beam-pumping unit, often produces the blowout phenomenon when this pressure is great, causes the waste of petroleum resource, and it is common that oil pipe can be connected with the relief pressure valve, reduces the output pressure of crude oil through the relief pressure valve.
Some relief pressure valves that have now pass through angle valve and oil pipe connection, relief pressure valve and angle valve's junction department generally can be provided with hand wheel spare, hand wheel spare overlaps to be established on this junction of relief pressure valve, be equipped with on the link can with the butt portion of hand wheel spare butt, during the connection, hand wheel spare passes through the screw thread and is connected with the angle valve, and the butt portion of butt relief pressure valve link, with its butt in the end of producing oil of angle valve, make the angle valve open through the self-closing structure that pushes away the angle valve, realize the intercommunication between angle valve and the relief pressure valve.
Above-mentioned connected mode has the safe in utilization problem, when the conflagration breaing out and being in high temperature environment, needs the manual angle valve of closing just can close oil pipe and carry out the fuel feeding to the outside, and if not the manual angle valve of closing, then oil pipe still can carry out outside fuel feeding through angle valve and relief pressure valve, aggravates the condition of a fire easily, neither makes things convenient for personnel to flee like this, also has certain potential safety hazard.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an oil exploitation regulating valve bank which can improve safety.
The oil exploitation regulating valve group comprises an angle valve and a pressure reducing valve, wherein the angle valve comprises an angle valve body, a valve core, a piston, a first high-temperature melting ring made of a low-melting-point material, a first elastic part and a plug, the angle valve body is provided with a valve cavity, an inlet channel and an outlet channel, the valve cavity is communicated with the inlet channel through a first through hole, the caliber of the first through hole is smaller than that of the inlet channel, the first high-temperature melting ring is positioned in the inlet channel, one end of the first high-temperature melting ring is abutted to the first through hole, the other end of the first high-temperature melting ring is provided with the plug, the first high-temperature melting ring is provided with a second through hole communicated with the first through hole, the first elastic part is sleeved in the first high-temperature melting ring, one end of the first elastic part penetrates through the one end of the first high-temperature melting ring and is fixedly connected with the angle valve body, the other end of the valve core is fixedly connected with the plug, so that the plug is abutted against the other end of the first high-temperature melting ring and the first elastic piece is in a stretching state, and the valve core is arranged in the valve cavity and can enable the inlet channel and the outlet channel to be communicated or disconnected; the pressure reducing valve comprises a connecting pipe and a hand wheel piece, wherein a connecting piece is fixedly arranged at one end of the connecting pipe, and a first channel communicated with the inside of the connecting pipe is formed in the connecting piece; the hand wheel piece is movably sleeved on the connecting pipe, a connecting part capable of being fixedly connected with the outlet channel is arranged on the hand wheel piece, a second high-temperature melting ring is arranged between the connecting part and the connecting piece, a protruding part capable of abutting against the second high-temperature melting ring is arranged on the connecting piece, and the second high-temperature melting ring is made of a low-melting-point material; the connecting pipe is connected to the oil outlet end of the outlet channel through the hand wheel piece, the piston is movably arranged in the outlet channel and can enable the first channel to be communicated with or disconnected from the outlet channel, and the connecting piece can push the piston to move.
The oil exploitation regulating valve group provided by the embodiment of the invention at least has the following beneficial effects: in a normal state, the plug abuts against the first high-temperature melting ring, the first high-temperature melting ring abuts against the angle valve body, so that the first elastic part is in a stretching state, the oil inlet end of the angle valve is communicated with the first through hole through the second through hole, the plug does not block the first through hole, the oil inlet end of the angle valve is opened and communicated, the second high-temperature melting ring abuts against the hand wheel part, the protruding part of the connecting piece abuts against the second high-temperature melting ring, the connecting piece pushes the piston in the angle valve to open and communicate the oil outlet end of the piston, and the oil outlet end of the angle valve is communicated with the inner channel of the connecting pipe through the first channel, so that oil supply is realized; when in conflagration or high temperature environment, first high temperature melting circle and the second high temperature melting circle that low melting point material made are melted by high temperature, butt failure between angle valve body and the first high temperature melting circle, make the end cap move towards first through-hole and block up first through-hole under the effect of first elastic component, realize first way self-closing, second high temperature melting circle melts and leads to the butt failure between bulge and the second high temperature melting circle, make the connecting piece move towards hand wheel spare until bulge butt in hand wheel spare, the connecting piece can become flexible, the top between connecting piece and the piston is failed, the piston is closed the oil outlet end of valve body, realize second way self-closing, its security performance is better, high durability and convenient use.
According to some embodiments of the invention, the pressure reducing valve further comprises a pressure reducing valve body, a diaphragm, a sliding part and a crank, the diaphragm is arranged in the pressure reducing valve body, the oil inlet end of the pressure reducing valve body is fixedly connected with the connecting pipe, the sliding part is movably inserted in the connecting pipe, the left end of the sliding part is connected with the crank, the crank is connected with the diaphragm, the right end of the sliding part can abut against and seal the oil outlet end of the first channel, the sliding part can move along the axis of the connecting pipe and can drive the crank to rotate, and the crank can pull the diaphragm.
According to some embodiments of the present invention, a connection ring is disposed in the outlet channel, the piston is disposed through the connection ring and provided with an annular abutting portion and a second elastic member capable of abutting the annular abutting portion on the connection ring, a left end of the piston abuts against a right end of the connection member, the piston is provided with a third through hole and a second channel capable of communicating with the outlet channel through the third through hole, the first channel is communicated with the second channel, and the connection ring is capable of sealing the third through hole.
According to some embodiments of the invention, the connector is threadedly connected to the connection tube.
According to some embodiments of the invention, a first sealing ring is provided between the connecting piece and the connecting pipe.
According to some embodiments of the invention, the hand wheel member is threadedly connected to the angle valve body.
According to some embodiments of the invention, the right end of the sliding member is provided with a sealing rubber pad.
According to some embodiments of the invention, a second sealing ring is arranged between the connecting ring and the angle valve body.
According to some embodiments of the invention, a rubber ring is provided between the connection ring and the piston.
According to some embodiments of the invention, the angle valve body is of a T-shaped configuration, the valve chamber and the inlet passage are arranged vertically, and the outlet passage is arranged laterally.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic cross-sectional view of an oil production regulating valve block according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
FIG. 3 is a schematic cross-sectional view of the oil recovery modulating valve block of FIG. 1 after the high temperature melting ring has been melted.
Reference numerals:
an oil exploitation regulating valve group 10;
the angle valve comprises an angle valve 100, an angle valve body 110, a valve cavity 111, an inlet passage 112, an outlet passage 113, a first through hole 114, a valve core 120, a piston 130, a third through hole 131, a second passage 132, a first high-temperature melting ring 140, a second through hole 141, a first elastic member 150, a plug 160, a connecting ring 170, a second sealing ring 180 and a rubber ring 190;
the pressure reducing valve comprises a pressure reducing valve 200, a connecting pipe 210, a hand wheel part 220, a connecting piece 230, a first channel 231, a second high-temperature melting ring 240, a pressure reducing valve body 250, a diaphragm 260, a sliding piece 270, a sealing rubber gasket 271, a crank 280 and a first sealing ring 290; and a second elastic member 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1 to 3, an oil production regulating valve group 10 includes an angle valve 100 and a pressure reducing valve 200, the angle valve 100 includes an angle valve body 110, a valve core 120, a piston 130, a first high temperature melting ring 140 made of a low melting point material, a first elastic member 150 and a plug 160, the angle valve body 110 is provided with a valve cavity 111, an inlet passage 112 and an outlet passage 113, the valve cavity 111 is communicated with the inlet passage 112 through a first through hole 114, the caliber of the first through hole 114 is smaller than that of the inlet passage 112, the first high temperature melting ring 140 is located in the inlet passage 112, one end of the first high temperature melting ring 140 abuts against the first through hole 114, the other end is provided with the plug 160, the first high temperature melting ring 140 is provided with a second through hole 141 communicated with the first through hole 114, the first high temperature melting ring 140 is internally sleeved with the first elastic member 150, one end of the first elastic member 150 penetrates through one end of the first high temperature melting ring 140 and is, the other end is fixedly connected with the plug 160, so that the plug 160 abuts against the other end of the first high-temperature melting ring 140 and the first elastic element 150 are in a stretching state, and the valve core 120 is arranged in the valve cavity 111 and can enable the inlet channel 112 and the outlet channel 113 to be communicated or disconnected; the pressure reducing valve 200 includes a connecting pipe 210 and a hand wheel 220, wherein one end of the connecting pipe 210 is fixedly provided with a connecting piece 230, and the connecting piece 230 is provided with a first channel 231 communicated with the inside of the connecting pipe 210; the hand wheel piece 220 is movably sleeved on the connecting pipe 210, a connecting part capable of being fixedly connected with the outlet channel 113 is arranged on the hand wheel piece 220, a second high-temperature melting ring 240 is arranged between the connecting part and the connecting piece 230, a protruding part capable of abutting against the second high-temperature melting ring 240 is arranged on the connecting piece 230, and the second high-temperature melting ring 240 is made of a low-melting-point material; the connecting pipe 210 is connected to the oil outlet end of the outlet channel 113 through a hand wheel 220, the piston 130 is movably disposed in the outlet channel 113 and can connect or disconnect the first channel 231 and the outlet channel 113, and the connecting member 230 can push the piston 130 to move.
Specifically, the low-melting point materials used for the first high-temperature melting ring 140 and the second high-temperature melting ring 240 should have the characteristics of beginning to deform or melt when the temperature is higher than 100 degrees, and the low-melting point materials may be: polyethylene (e.g., HDPE, LDPE, LLDPE), polypropylene (e.g., PP, MPP, MCPP), polyamide (e.g., Nylon 6, Nylon 66, Nylon 11, Nylon 12, Nylon 1010, Nylon 610, Nylon 612, Nylon 46, Nylon 1212, aromatic nylon, copolymerized nylon, modified nylon, etc.), Polycarbonate (PC), Polyoxymethylene (POM), polyphenylene oxide (PPO/MPPO), thermoplastic polyester (e.g., PBT, PET, PCT, PTT, PEN, PBN), Polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), Polyimide (PI), polyphenylene sulfide (PPS), polysulfone-based plastic (e.g., PSF, PES, PAS), polyketone-based plastic (e.g., PEEK, PEK, PAEK, PEKK, PEEKK, PEKEKK), Polyarylate (PAR), polyvinyl chloride (PVC), Polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS), or a crosslinked product of two or more of the above materials, or a mixture of two or more of the above materials. In practical applications, the specific materials used for the first high-temperature melting ring 140 and the second high-temperature melting ring 240 may be changed according to practical needs.
The oil production regulating valve group 10 according to the embodiment of the invention has at least the following beneficial effects: in a normal state, the plug 160 abuts against the first high-temperature melting ring 140, the first high-temperature melting ring 140 abuts against the angle valve body 110, so that the first elastic part 150 is in a stretching state, the oil inlet end of the angle valve 100 is communicated with the first through hole 114 through the second through hole 141, the plug 160 does not block the first through hole 114, so that the oil inlet end of the angle valve 100 is opened and communicated, the second high-temperature melting ring 240 abuts against the hand wheel piece 220, the protruding part of the connecting piece 230 abuts against the second high-temperature melting ring 240, so that the connecting piece 230 pushes the piston 130 in the angle valve 100 to open and communicate the oil outlet end thereof, and the oil outlet end of the angle valve 100 is communicated with the inner channel of the connecting pipe 210 through the first channel 231, so that oil supply; in a fire or high-temperature environment, the first high-temperature melting ring 140 and the second high-temperature melting ring 240 made of low-melting-point materials are melted at high temperature, the abutting between the angle valve body 110 and the first high-temperature melting ring 140 fails, so that the plug 160 moves towards the first through hole 114 and blocks the first through hole 114 under the action of the first elastic piece 150, the first automatic closing is realized, the second high-temperature melting ring 240 melts to cause the abutting failure between the protruding portion and the second high-temperature melting ring 240, the connecting piece 230 moves towards the hand wheel piece 220 until the protruding portion abuts against the hand wheel piece 220, the connecting piece 230 can loosen, the pushing between the connecting piece 230 and the piston 130 fails, the piston 130 closes the oil outlet end of the valve body, the second automatic closing is realized, and the safety performance is better and the use is convenient.
According to some embodiments of the present invention, the pressure reducing valve 200 further includes a pressure reducing valve body 250, a diaphragm 260, a sliding member 270, and a crank 280, the diaphragm 260 is disposed in the pressure reducing valve body 250, an oil inlet end of the pressure reducing valve body 250 is fixedly connected to the connecting pipe 210, the sliding member 270 is movably inserted into the connecting pipe 210, a left end of the sliding member 270 is connected to the crank 280, the crank 280 is connected to the diaphragm 260, a right end of the sliding member 270 can abut against and close an oil outlet end of the first passage 231, the sliding member 270 can move along an axis of the connecting pipe 210 and can drive the crank 280 to rotate, the crank 280 can pull the diaphragm 260, the sliding member 270 can abut against and close the oil outlet end of the first passage 231, when oil enters the first passage 231, the higher pressure oil pushes the sliding member 270, the sliding member 270 moves to drive the crank 280 to rotate, the diaphragm 260 extends downward, the higher pressure oil enters the connecting pipe 100, the output pressure of the oil is reduced, and the output pressure of the oil is stabilized under the action of the diaphragm 260, so that the oil-gas separator is simple in structure, high in reliability and convenient to produce, manufacture and use.
The connecting member 230 is disposed at an oil inlet end of the pressure reducing valve 200, and the connecting pipe 210 and the pressure reducing valve body 250 are integrated, but they may be connected by threads or welding in practical applications. When the connecting piece 230 is used, the connecting piece 230 pushes the piston 130 to open the oil outlet end of the piston, oil enters from the first channel 231, the sliding piece 270 is pushed to prevent the sliding piece from abutting against the oil outlet end of the first channel 231, the sliding piece 270 moves to drive the crank 280 to rotate and pull the membrane 260 to extend downwards, and the oil enters the pressure reduction valve body 250 from the connecting pipe 210 and is output from the oil outlet end of the pressure reduction valve body; when the second high-temperature melting ring 240 is melted and deformed, the connecting piece 230 loses the pushing action on the piston 130, the oil outlet end of the angle valve 100 is closed, the diaphragm 260 in the pressure reducing valve 200 is elastically reset to pull the crank 280 to rotate and drive the sliding piece 270 to move rightwards, so that the right end of the sliding piece abuts against the oil outlet end of the first channel 231, and the oil inlet closing is realized. In practical applications, the specific structure of the pressure reducing valve 200 may be changed according to practical application requirements, such as providing a pressure stabilizer on the diaphragm 260 or connecting a spring, etc., which can be understood by those skilled in the art without limitation.
According to some embodiments of the present invention, the connection ring 170 is disposed in the outlet channel 113, the piston 130 is disposed through the connection ring 170 and is provided with an annular abutting portion and a second elastic member 300 capable of abutting the annular abutting portion on the connection ring 170, the left end of the piston 130 abuts against the right end of the connection member 230, the piston 130 is provided with a third through hole 131 and a second channel 132 capable of communicating with the outlet channel 113 through the third through hole 131, the first channel 231 and the second channel 132 are communicated, the connection ring 170 can seal the third through hole 131, and by providing the connection ring 440 and the piston 130 with the annular abutting portion, the installation and connection of the piston 130 can be facilitated.
According to some embodiments of the present invention, the connection member 230 is screwed with the connection pipe 210, so that the connection member is easy to install and disassemble, and the later maintenance is easy.
According to some embodiments of the present invention, a first sealing ring 290 is disposed between the connection member 230 and the connection pipe 210 to improve sealing performance.
According to some embodiments of the present invention, the hand wheel 220 is threadably coupled to the angle valve body 110 to facilitate adjustment of the degree to which the connector 230 pushes against the piston 130.
According to some embodiments of the present invention, the right end of the sliding member 270 is provided with the sealing rubber pad 271, so that when the right end of the sliding member 270 abuts against and closes the oil outlet end of the first channel 231, the abutting surface between the two can be sealed, the sealing performance can be improved, thereby preventing oil leakage and improving the use safety, and meanwhile, the abutting surface between the two can be protected by buffering, preventing abutting deformation, improving durability, preventing abrasion of the connecting member 230 and improving the sealing performance.
According to some embodiments of the present invention, a second sealing ring 180 is disposed between the connection ring 170 and the angle valve body 110 to improve sealing performance.
According to some embodiments of the present invention, a rubber ring 190 is disposed between the connection ring 170 and the piston 130 to prevent abrasion of the connection ring 170 and the piston 130.
According to some embodiments of the present invention, the angle valve body 110 has a T-shaped structure, the valve chamber 111 and the inlet passage 112 are vertically arranged, and the outlet passage 113 is transversely arranged, so that the structure is simple and the manufacture is convenient. In practical applications, the specific structure of the angle valve 100 may be changed according to practical needs.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. An oil extraction regulating valve group (10), characterized in that it comprises:
the angle valve (100) comprises an angle valve body (110), a valve core (120), a piston (130), a first high-temperature melting ring (140) made of a low-melting-point material, a first elastic piece (150) and a plug (160), wherein a valve cavity (111), an inlet passage (112) and an outlet passage (113) are arranged on the angle valve body (110), the valve cavity (111) is communicated with the inlet passage (112) through a first through hole (114), the caliber of the first through hole (114) is smaller than that of the inlet passage (112), the first high-temperature melting ring (140) is located in the inlet passage (112), one end of the first high-temperature melting ring (140) is abutted against the first through hole (114), the other end of the first high-temperature melting ring is provided with the plug (160), the first high-temperature melting ring (140) is provided with a second through hole (141) communicated with the first through hole (114), the first high-temperature melting ring (140) is sleeved with the first elastic piece (150), one end of the first elastic piece (150) penetrates through the first high-temperature melting ring (140), one end of the first elastic piece is fixedly connected with the angle valve body (110), the other end of the first elastic piece is fixedly connected with the plug (160), so that the plug (160) abuts against the other end of the first high-temperature melting ring (140) and the first elastic piece (150) to be in a stretching state, and the valve core (120) is arranged in the valve cavity (111) and can enable the inlet channel (112) and the outlet channel (113) to be communicated or disconnected;
the pressure reducing valve (200) comprises a connecting pipe (210) and a hand wheel piece (220), one end of the connecting pipe (210) is fixedly provided with a connecting piece (230), and the connecting piece (230) is provided with a first channel (231) communicated with the inside of the connecting pipe (210); the hand wheel piece (220) is movably sleeved on the connecting pipe (210), a connecting part capable of being fixedly connected with the outlet channel (113) is arranged on the hand wheel piece (220), a second high-temperature melting ring (240) is arranged between the connecting part and the connecting piece (230), a protruding part capable of abutting against the second high-temperature melting ring (240) is arranged on the connecting piece (230), and the second high-temperature melting ring (240) is made of a low-melting-point material;
the connecting pipe (210) is connected to the oil outlet end of the outlet channel (113) through the hand wheel piece (220), the piston (130) is movably arranged on the outlet channel (113) and can enable the first channel (231) and the outlet channel (113) to be communicated or disconnected, and the connecting piece (230) can push the piston (130) to move.
2. Oil production regulating valve group according to claim 1, characterized in that the pressure reducing valve (200) further comprises a pressure reducing valve body (250), a diaphragm (260), a slide (270) and a crank (280), the membrane (260) is arranged in the pressure reducing valve body (250), the oil inlet end of the pressure reducing valve body (250) is fixedly connected with the connecting pipe (210), the sliding piece (270) is movably inserted into the connecting pipe (210), the left end of the sliding piece (270) is connected with the crank (280), the crank (280) is connected with the diaphragm (260), the right end of the sliding piece (270) can abut against and close the oil outlet end of the first channel (231), the slider (270) is movable along the axis of the connecting tube (210), and can drive the crank (280) to rotate, and the crank (280) can pull the diaphragm (260).
3. Oil production regulating valve group according to claim 2, characterized in that a connecting ring (170) is provided in the outlet channel (113), the piston (130) is arranged through the connecting ring (170) and provided with an annular abutment and a second elastic member (300) capable of abutting the annular abutment on the connecting ring (170), the left end of the piston (130) abuts the right end of the connecting member (230), the piston (130) is provided with a third through hole (131) and a second channel (132) capable of communicating with the outlet channel (113) through the third through hole (131), the first channel (231) and the second channel (132) communicate, and the connecting ring (170) is capable of closing the third through hole (131).
4. Valve group according to claim 3, characterized in that the connection piece (230) is screwed to the connection pipe (210).
5. Valve group according to claim 4, characterized in that a first sealing ring (290) is provided between the connection piece (230) and the connection pipe (210).
6. The valve block of claim 5, wherein the hand wheel member (220) is threadably connected to the angle valve body (110).
7. Valve group according to claim 3, characterized in that the right end of the slide (270) is provided with a sealing gasket (271).
8. Valve group according to claim 3, characterized in that a second sealing ring (180) is provided between the connection ring (170) and the angle valve body (110).
9. Valve group according to claim 3, characterized in that a rubber ring (190) is provided between the connection ring (170) and the piston (130).
10. Valve group according to any of the previous claims 1 to 9, characterized in that the angle valve body (110) is of T-shaped configuration, the valve chamber (111) and the inlet passage (112) being vertically arranged and the outlet passage (113) being transversely arranged.
CN202110032505.6A 2021-01-12 2021-01-12 Regulating valve group for petroleum exploitation Active CN112361051B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700726A1 (en) * 1987-01-13 1988-07-28 Gok Gmbh & Co Kg Thermally triggered shut-off device
CN2032673U (en) * 1987-01-27 1989-02-15 李罡 Pressure reduction non-return angle valve
CN2389277Y (en) * 1999-06-23 2000-07-26 李孝生 Oxygen-enriching high-efficiency energy-saving pressure regulator for domestic liquefied petroleum gas
CN2463631Y (en) * 2000-11-01 2001-12-05 刘灿炎 Automatic cut-off safety pressure regulator for domestic liquefied petroleum gas
JP3365961B2 (en) * 1998-07-24 2003-01-14 矢崎総業株式会社 Pressure regulator with thermal fuse
CN2837662Y (en) * 2005-05-26 2006-11-15 张珉 Complete gas safety device
CN201836478U (en) * 2009-10-19 2011-05-18 伍桂婵 Large-flow reducing valve
CN206145210U (en) * 2016-11-08 2017-05-03 多立恒(北京)能源技术股份公司 Pipeline fusing protective valve
CN207740507U (en) * 2017-12-27 2018-08-17 海南广天恒科技发展有限公司 Bottle gas safety relief valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700726A1 (en) * 1987-01-13 1988-07-28 Gok Gmbh & Co Kg Thermally triggered shut-off device
CN2032673U (en) * 1987-01-27 1989-02-15 李罡 Pressure reduction non-return angle valve
JP3365961B2 (en) * 1998-07-24 2003-01-14 矢崎総業株式会社 Pressure regulator with thermal fuse
CN2389277Y (en) * 1999-06-23 2000-07-26 李孝生 Oxygen-enriching high-efficiency energy-saving pressure regulator for domestic liquefied petroleum gas
CN2463631Y (en) * 2000-11-01 2001-12-05 刘灿炎 Automatic cut-off safety pressure regulator for domestic liquefied petroleum gas
CN2837662Y (en) * 2005-05-26 2006-11-15 张珉 Complete gas safety device
CN201836478U (en) * 2009-10-19 2011-05-18 伍桂婵 Large-flow reducing valve
CN206145210U (en) * 2016-11-08 2017-05-03 多立恒(北京)能源技术股份公司 Pipeline fusing protective valve
CN207740507U (en) * 2017-12-27 2018-08-17 海南广天恒科技发展有限公司 Bottle gas safety relief valve

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