CN111271482A - Natural gas line sampling valve - Google Patents
Natural gas line sampling valve Download PDFInfo
- Publication number
- CN111271482A CN111271482A CN202010144195.2A CN202010144195A CN111271482A CN 111271482 A CN111271482 A CN 111271482A CN 202010144195 A CN202010144195 A CN 202010144195A CN 111271482 A CN111271482 A CN 111271482A
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- CN
- China
- Prior art keywords
- connecting seat
- sampling
- seat
- pipeline
- ball valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/035—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed around the spigot end before connection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
Abstract
The invention relates to the field of sampling valves, in particular to a natural gas pipeline sampling valve which comprises a connecting seat, wherein one end of the connecting seat is in threaded connection with a first reinforcing member, two air outlet pipes are installed on the first reinforcing member, one end of the connecting seat is in threaded connection with a second reinforcing member, an air inlet pipe is inserted into the middle of the second reinforcing member, a sampling pipeline is inserted into the top end of the connecting seat, a ball valve is rotatably installed at a position, located between a sealing mechanism and a top cover, in the sampling pipeline, a ball valve installation seat is fixedly installed at a position, corresponding to the ball valve, on the outer side wall of the sampling pipeline, and a protective cover is in threaded connection with the. Increase the fastness that intake pipe and outlet duct are connected through setting up first reinforcement and second reinforcement, increase the life cycle of sample valve, increase the leakproofness of sample pipeline through sealing mechanism simultaneously, prevent through the protection casing that the ball valve is bumped by the mistake and rotates, effectively increase the security that the sample valve used.
Description
Technical Field
The invention relates to the field of sampling valves, in particular to a natural gas pipeline sampling valve.
Background
The sampling valve is the valve that is arranged in obtaining medium sample in pipeline or the equipment, a occasion for need often carry out chemical analysis to medium sample, the sampling valve is often used for on the natural gas line, because the natural gas is combustible gas, in order to ensure its safe handling, need frequently detect the composition of natural gas, the natural gas line need possess good leakproofness, can not often dismantle, consequently need install the sampling valve on the natural gas line, the convenience is carried out the sample detection to the natural gas.
When the natural gas pipeline sampling valve is installed, the natural gas pipeline sampling valve and a pipeline are connected into a whole through a connecting mechanism, a detector needs to be butted on the sampling pipeline after the natural gas sampling valve used in the prior art is opened, the air inlet pipe and the air outlet pipe are not reinforced, the butt joint parts of the air inlet pipe and the air outlet pipe and the connecting mechanism are loosened after frequent use, the firmness of connection is reduced, the service cycle is greatly reduced, moreover, the sampling pipeline controls the circulation and the closure of gas only through the ball valve, the sealing performance of the sampling pipeline is not further enhanced, the gas leakage is easy to cause, the sealing performance of the sampling valve is greatly reduced, meanwhile, the knob of the sampling valve is directly exposed outside the valve body, and the ball valve is easily opened after the knob is touched by mistake, so that gas in the natural gas pipeline enters the sampling pipeline to cause leakage, and the use safety of the sampling valve is greatly reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a natural gas pipeline sampling valve.
The technical scheme adopted by the invention for solving the technical problems is as follows: a natural gas pipeline sampling valve comprises a connecting seat, wherein one end of the connecting seat is in threaded connection with a first reinforcing member, two air outlet pipes are symmetrically inserted and installed on the first reinforcing member, one ends, close to the connecting seat, of the two air outlet pipes penetrate through the side wall of the connecting seat and are communicated with the inside of the connecting seat, one end, far away from the first reinforcing member, of the connecting seat is in threaded connection with a second reinforcing member, an air inlet pipe is inserted and installed in the middle of the second reinforcing member, one end, close to the connecting seat, of the air inlet pipe penetrates through the side wall of the connecting seat and is communicated with the inside of the connecting seat, a flow limiting seat is fixedly installed on the inner side wall of the connecting seat and in a position corresponding to the air inlet pipe, a buffer mechanism is fixedly installed on the inner bottom wall of, the utility model discloses a sampling pipeline, including sampling pipeline, sealing mechanism, ball valve, threaded rod, connecting seat, sampling pipeline, ball valve installation seat, sealing mechanism, ball valve, connecting seat.
Specifically, the top fixed mounting of top cap has the handle, fixedly connected with connects the rope on the top cap, just the one end fixed connection that the top cap was kept away from to the connection rope is on the lateral wall of sample pipeline.
Specifically, the sealing mechanism comprises a sealing seat, a piston hole is drilled in the sealing seat, a piston is arranged in the piston hole, airflow channels communicated with the piston hole are arranged on the inner walls of two sides of the lower end of the piston hole, the upper ends of the two airflow channels pass through the interior of a sampling pipeline, and an upper groove and a lower groove are formed in the upper end of the piston hole and positioned on the inner wall of the sealing seat;
the linkage opening mechanism comprises a box body fixed on the connecting seat, a threaded rod of the ball valve penetrates through a sampling pipeline and is inserted into the box body, a screw rod is perpendicularly arranged in the middle of the box body, bevel gears are arranged at ports of the threaded rod of the screw rod and the threaded rod of the ball valve, the threaded rod of the screw rod and the threaded rod of the ball valve are connected in a meshed mode through the bevel gears, the lower end of the screw rod penetrates through the box body and is connected with a lifting rod in a threaded mode.
Specifically, buffer gear includes the fixing base, just fixing base fixed mounting is on the interior diapire of connecting seat, the top fixed mounting of fixing base has the pivot, the one end that the fixing base was kept away from in the pivot is rotated and is installed the buffering plectane, it has a plurality of circular ports to cut on the buffering plectane.
Specifically, one end of the second reinforcing member, which is close to the connecting seat, is fixedly provided with a sealing washer, and the sealing washer and the connecting seat are in close contact with the outer side wall of one end of the first reinforcing member.
Specifically, the one end that the intake pipe is close to the connecting seat inserts and installs in the second reinforcement, just the fixed cover of the one end that the intake pipe is close to the connecting seat connects and installs the sealing ring circle, sealing ring circle and connecting seat in close contact with.
Specifically, first reinforcement includes the cylinder seat, it has the external thread groove to cut on the outer wall that the cylinder seat is close to connecting seat one end, just the external thread groove is connected with the lateral wall screw thread of connecting seat, the symmetry is cut on the cylinder seat and is had two outlet duct mounting holes, and two the one end that the outlet duct is close to the connecting seat all inserts in the outlet duct mounting hole that corresponds the setting.
The invention has the beneficial effects that:
(1) according to the natural gas pipeline sampling valve, the threaded rod of the ball valve and the linkage opening mechanism synchronously act, the ball valve is opened, the airflow channel is opened at the same time, natural gas is released for sampling, and the documentary performance and the safety performance of the closing and opening operations are synchronous are improved.
(2) According to the natural gas pipeline sampling valve, the connection firmness of the gas inlet pipe and the gas outlet pipe is increased, the service cycle of the valve body is effectively prolonged, natural gas can enter the sampling pipeline from the connecting seat during sampling through the sealing mechanism, the gas hole is blocked through the sealing plug during the non-sampling period, the natural gas is prevented from entering the sampling pipeline, and the sealing performance of the sampling valve is greatly improved.
(3) According to the natural gas pipeline sampling valve, during sampling, the protective cover is taken down and turned to the ball valve, so that the sampling pipeline can be in an open state, after the sampling operation is finished, the ball valve is closed, the protective cover is screwed on the ball valve mounting seat, the phenomenon that the air pressure in the sampling pipeline is smaller than that in the connecting seat due to mistaken touch of a ball valve knob is avoided, leakage of natural gas in the connecting seat is avoided, and the use safety of the sampling valve is greatly improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a natural gas pipeline sampling valve provided by the present invention;
FIG. 2 is a schematic view of a connection structure of a linkage opening mechanism and a sealing seat of a natural gas pipeline sampling valve provided by the invention;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2 of a sampling valve for a natural gas pipeline according to the present invention;
FIG. 4 is a schematic structural diagram of a buffering mechanism of a sampling valve of a natural gas pipeline according to the present invention;
FIG. 5 is a front view of the connection between the second reinforcing member and the gas inlet pipe of the sampling valve for the natural gas pipeline provided by the invention;
fig. 6 is a schematic structural diagram of a first reinforcement member of a sampling valve of a natural gas pipeline provided by the invention.
In the figure: 1. a connecting seat; 2. a first stiffener; 21. a cylindrical seat; 22. an outer thread groove; 23. an air outlet pipe mounting hole; 3. an air outlet pipe; 4. a sealing mechanism; 41. a sealing seat; 42. an air flow channel; 43. an upper groove and a lower groove; 44. a piston bore; 45. a piston; 5. a sampling pipe; 6. a top cover; 61. connecting ropes; 62. a handle; 7. a ball valve; 8. a ball valve mounting seat; 9. a protective cover; 10. a second stiffener; 101. a sealing gasket; 11. an air inlet pipe; 111. sealing the ferrule; 12. a current limiting seat; 13. a buffer mechanism; 131. a fixed seat; 132. a rotating shaft; 133. a circular hole; 134. a buffer circular plate; 14. a linkage opening mechanism; 141. a screw; 142. a bevel gear; 143. a box body; 144. a lifting rod.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, the natural gas pipeline sampling valve of the invention comprises a connecting seat 1, one end of the connecting seat 1 is in threaded connection with a first reinforcing member 2, two air outlet pipes 3 are symmetrically inserted and mounted on the first reinforcing member 2, one ends of the two air outlet pipes 3 close to the connecting seat 1 penetrate through the side wall of the connecting seat 1 and are communicated with the inside of the connecting seat 1, one end of the connecting seat 1 far away from the first reinforcing member 2 is in threaded connection with a second reinforcing member 10, an air inlet pipe 11 is inserted and mounted in the middle of the second reinforcing member 10, one end of the air inlet pipe 11 close to the connecting seat 1 penetrates through the side wall of the connecting seat 1 and is communicated with the inside of the connecting seat 1, a flow limiting seat 12 is fixedly mounted on the inner side wall of the connecting seat 1 and at a position corresponding to the air inlet pipe 11, and a buffer mechanism 13 is fixedly mounted, the top of connecting seat 1 and the top fixed insertion that is located buffer gear 13 install sample pipeline 5, the one end fixed mounting that just is close to connecting seat 1 between the 5 inner walls of sample pipeline has sealing mechanism 4, the one end embedding joint that sealing mechanism 4 was kept away from to sample pipeline 5 is installed top cap 6, just the position that is located between sealing mechanism 4 and top cap 6 in the sample pipeline 5 rotates and installs ball valve 7, on the lateral wall of sample pipeline 5 and with the corresponding position fixed mounting of ball valve 7 have ball valve mount pad 8, the one end threaded connection that sample pipeline 5 was kept away from to ball valve mount pad 8 has protection casing 9, just the threaded rod of ball valve 7 is located protection casing 9, one side of sample pipeline 5 is equipped with linkage opening mechanism 14.
Specifically, top fixed mounting of top cap 6 has handle 62, fixedly connected with connects rope 61 on the top cap 6, just the one end fixed connection that top cap 6 was kept away from to connect rope 61 is convenient for take out top cap 6 from sampling pipe 5 through handle 62 on sampling pipe 5's lateral wall, makes things convenient for going on of sample operation to sampling pipe 5's leakproofness when guaranteeing non-sample operation prevents that the dust from getting into, avoids influencing ball valve 7's result of use.
Specifically, the sealing mechanism 4 includes a sealing seat 41, a piston hole 44 is drilled in the sealing seat 41, a piston 45 is arranged in the piston hole 44, airflow channels 42 communicated with the piston hole 44 are arranged on inner walls of two sides of the lower end of the piston hole 44, the upper ends of the two airflow channels 42 pass through the inside of the sampling pipeline 5, an upper groove 43 and a lower groove 43 are arranged at the upper end of the piston hole 44 and on the inner wall of the sealing seat 41, the airflow channels 42 are released by the piston 45 rising, and the natural gas in the connecting seat 1 enters the airflow channels 42 through the piston hole 44, and then enters the sampling pipeline 5 for sampling;
the linkage opening mechanism 14 comprises a box body 143 fixed on the connecting seat 1, the threaded rod of the ball valve 7 penetrates through the sampling pipeline 5 and is inserted into the box body 143, a threaded rod 141 is vertically arranged in the middle of the box body 143, the threaded rods 141 and the threaded rod of the ball valve 7 are respectively provided with a bevel gear 142, the threaded rods 141 and the threaded rod of the ball valve 7 are meshed through the bevel gears 142, the lower end of the threaded rod 141 penetrates through the box body 143 and is connected with a lifting rod 144, the other end of the lifting rod 144 penetrates through an upper groove 43 and a lower groove 43 and is connected with a piston 45, when the ball valve 7 is opened through the threaded rod of the ball valve 7, the threaded rod of the ball valve 7 drives the threaded rod 141 to rotate through the bevel gear 142, the lifting rod 144 is positioned in the upper groove 43 and ascends, the piston 45 releases, high safety performance and one-step operation.
Specifically, buffer gear 13 includes fixing base 131, just fixing base 131 fixed mounting is on the interior diapire of connecting seat 1, the top fixed mounting of fixing base 131 has pivot 132, the one end rotation that fixing base 131 was kept away from to pivot 132 installs buffering plectane 134, it has a plurality of circular ports 133 to dig on the buffering plectane 134, when natural gas got into connecting seat 1 from intake pipe 11 in, at first gas can strike buffering plectane 134 to let buffering plectane 134 rotate, in this process, natural gas can pass in the middle of circular port 133, has reduced the impact of gas to outlet duct 3 through buffering plectane 134, effectively reduces the impact force that outlet duct 3 and connecting seat 1 junction received, further increases the stability of its connection.
Specifically, the one end fixed mounting that second reinforcement 10 is close to connecting seat 1 has seal ring 101, just seal ring 101 and the lateral wall in close contact with of the 2 one ends of first reinforcement of connecting seat 1 are kept away from, can prevent the leakproofness of second reinforcement 10 and connecting seat 1 butt joint department through seal ring 101, prevent that natural gas from leaking, increase the security of valve body.
Specifically, the one end that intake pipe 11 is close to connecting seat 1 inserts and installs in second reinforcement 10, just intake pipe 11 is close to the fixed cover of one end of connecting seat 1 and connects and install sealing ring circle 111, sealing ring circle 111 and connecting seat 1 in close contact with support spacingly through second reinforcement 10 to intake pipe 11 one end that is close to connecting seat 1, improves the fastness after the installation of intake pipe 11, leads to intake pipe 11 to produce when avoiding taking a sample to the natural gas not hard up, prevents the leakproofness of intake pipe 11 and connecting seat 1 junction through sealing ring circle 111, prevents the natural gas leakage, effectively increases the security of valve body.
Specifically, first reinforcement 2 includes cylinder seat 21, it has external thread groove 22 to cut on the outer wall that cylinder seat 21 is close to 1 one end of connecting seat, just external thread groove 22 and the lateral wall threaded connection of connecting seat 1, the symmetry is cut on cylinder seat 21 and is had two outlet duct mounting holes 23, and two in the outlet duct 3 one end that is close to connecting seat 1 all inserted the outlet duct mounting hole 23 that corresponds the setting, supports spacingly through first reinforcement 2 to the one end that two outlet ducts 3 are close to connecting seat 1, improves the fastness after 3 installations of outlet duct, leads to outlet duct 3 to produce when avoiding taking a sample to the natural gas and becomes flexible.
When in use, firstly, during sampling operation, the top cover 6 is opened, the detector is in butt joint with the top end of the sampling pipeline 5, then the protective cover 9 is taken down from the ball valve mounting seat 8, the ball valve 7 is opened, the threaded rod of the ball valve 7 drives the threaded rod 141 to rotate through the bevel gear 142 while the ball valve 7 is opened through the threaded rod of the ball valve 7, the lifting rod 144 is positioned in the upper groove 43 and the lower groove 43 to lift, the piston 45 releases the blocked airflow channel 42, the ball valve 7 is further opened, the linkage opening mechanism 14 is driven to open, natural gas in the connecting seat 1 is released, the safety performance is high, the operation is in place in one step, during non-sampling period, the natural gas enters the connecting seat 1 from the gas inlet pipe 11, the entering gas is limited through the circular plate seat 12, the rotation during gas impact is ensured through the buffer 134, the gas is not blocked, and then the impact of the gas, can support and spacing outlet duct 3 and intake pipe 11 and 1 butt joint department of connecting seat respectively through first reinforcement 2 and second reinforcement 10, increase the fastness after outlet duct 3 and the installation of intake pipe 11, when preventing the sample operation, frequent carry out the butt joint installation with detector and sample pipeline 5, lead to connecting seat 1 and 11 and 3 links of outlet duct to produce not hard up, effectively improve the life cycle of sample valve, can protect the knob of ball valve 7 through protection casing 9, avoid the mistake to bump and lead to the knob to rotate, then drive ball valve 7 and rotate and cause the natural gas to leak, the security that the sample valve used has been improved greatly, can prevent through top cap 6 that the dust from getting into in the sample pipeline 5 and ensure sample pipeline 5's leakproofness.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a natural gas line sampling valve, includes connecting seat (1), its characterized in that: one end of the connecting seat (1) is in threaded connection with a first reinforcing piece (2), two air outlet pipes (3) are symmetrically inserted into the first reinforcing piece (2), one ends of the two air outlet pipes (3) close to the connecting seat (1) penetrate through the side wall of the connecting seat (1) and are communicated with the inside of the connecting seat (1), one ends of the air inlet pipes (11) close to the connecting seat (1) are in threaded connection with a second reinforcing piece (10), an air inlet pipe (11) is inserted into the middle of the second reinforcing piece (10), a current limiting seat (12) is fixedly installed on the inner side wall of the connecting seat (1) and corresponds to the air inlet pipe (11), and a buffer mechanism (13) is fixedly installed on the inner bottom wall of the connecting seat (1) and between the, the top end of the connecting seat (1) is fixedly inserted and provided with a sampling pipeline (5) above the buffer mechanism (13), a sealing mechanism (4) is fixedly arranged between the inner walls of the sampling pipelines (5) and at one end close to the connecting seat (1), one end of the sampling pipeline (5) far away from the sealing mechanism (4) is embedded and clamped with a top cover (6), a ball valve (7) is rotatably arranged in the sampling pipeline (5) and between the sealing mechanism (4) and the top cover (6), a ball valve mounting seat (8) is fixedly arranged on the outer side wall of the sampling pipeline (5) and at a position corresponding to the ball valve (7), one end of the ball valve mounting seat (8) far away from the sampling pipeline (5) is connected with a protective cover (9) in a threaded manner, and the threaded rod of the ball valve (7) is positioned in the protective cover (9), and one side of the sampling pipeline (5) is provided with a linkage opening mechanism (14).
2. The natural gas pipeline sampling valve of claim 1, wherein: the top fixed mounting of top cap (6) has handle (62), fixedly connected with connects rope (61) on top cap (6), just connect one end fixed connection that top cap (6) were kept away from in rope (61) on the lateral wall of sample pipeline (5).
3. The natural gas pipeline sampling valve of claim 1, wherein: the sealing mechanism (4) comprises a sealing seat (41), a piston hole (44) is formed in the sealing seat (41), a piston (45) is arranged in the piston hole (44), airflow channels (42) communicated with the piston hole (44) are arranged on the inner walls of two sides of the lower end of the piston hole (44), the upper ends of the two airflow channels (42) pass through the inside of the sampling pipeline (5), and an upper groove and a lower groove (43) are formed in the upper end of the piston hole (44) and the inner wall of the sealing seat (41);
linkage opening mechanism (14) is including being fixed in box (143) on connecting seat (1), the threaded rod of ball valve (7) passes sampling tube (5) and inserts box (143), box (143) middle part is equipped with screw rod (141) perpendicularly, the port of the threaded rod of screw rod (141) and ball valve (7) all is provided with bevel gear (142), the threaded rod of screw rod (141) and ball valve (7) passes through bevel gear (142) meshing connection, box (143) threaded connection has lifter (144) is passed to screw rod (141) lower extreme, lifter (144) other end passes upper and lower groove (43) and connects piston (45).
4. The natural gas pipeline sampling valve of claim 1, wherein: buffer gear (13) include fixing base (131), just fixing base (131) fixed mounting is on the interior diapire of connecting seat (1), the top fixed mounting of fixing base (131) has pivot (132), the one end rotation of fixing base (131) is kept away from in pivot (132) installs buffering plectane (134), it has a plurality of circular ports (133) to cut on buffering plectane (134).
5. The natural gas pipeline sampling valve of claim 1, wherein: one end of the second reinforcing member (10) close to the connecting seat (1) is fixedly provided with a sealing gasket (101), and the sealing gasket (101) is in close contact with the outer side wall of the connecting seat (1) far away from one end of the first reinforcing member (2).
6. The natural gas pipeline sampling valve of claim 1, wherein: one end of the air inlet pipe (11) close to the connecting seat (1) is inserted into the second reinforcing part (10), a sealing ring (111) is fixedly sleeved and installed at one end of the air inlet pipe (11) close to the connecting seat (1), and the sealing ring (111) is in close contact with the connecting seat (1).
7. The natural gas pipeline sampling valve of claim 1, wherein: first reinforcement (2) include cylinder seat (21), it has external thread groove (22) to cut on the outer wall that cylinder seat (21) is close to connecting seat (1) one end, just the lateral wall threaded connection of external thread groove (22) and connecting seat (1), it has two outlet duct mounting holes (23) to cut symmetrically on cylinder seat (21), and two the one end that outlet duct (3) are close to connecting seat (1) all inserts in corresponding outlet duct mounting hole (23) that sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144195.2A CN111271482B (en) | 2020-03-04 | 2020-03-04 | Natural gas line sampling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144195.2A CN111271482B (en) | 2020-03-04 | 2020-03-04 | Natural gas line sampling valve |
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| Publication Number | Publication Date |
|---|---|
| CN111271482A true CN111271482A (en) | 2020-06-12 |
| CN111271482B CN111271482B (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010144195.2A Active CN111271482B (en) | 2020-03-04 | 2020-03-04 | Natural gas line sampling valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648421A (en) * | 2020-12-21 | 2021-04-13 | 李祖宇 | Natural gas line sampling valve |
| CN116718438A (en) * | 2023-08-07 | 2023-09-08 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206723566U (en) * | 2017-03-28 | 2017-12-08 | 吴燕 | A kind of novel valve |
| CN108982771A (en) * | 2018-07-26 | 2018-12-11 | 安徽科创生产力促进中心有限责任公司 | A kind of ventilation detection device |
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| JPH09103997A (en) * | 1995-10-04 | 1997-04-22 | Fujirebio Inc | Punch for sample container and method for processing sample container using the same |
| US20100178863A1 (en) * | 2009-01-15 | 2010-07-15 | Coward Charles W | Air flow control damper with linear performance characteristics comprising an air foil control blade and inner annular orifice |
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| CN205001716U (en) * | 2015-06-18 | 2016-01-27 | 奥品科技有限公司 | Multifunctional joint |
| CN205246391U (en) * | 2015-12-04 | 2016-05-18 | 杨维忠 | Latent arm -type buggy sampling device |
| CN205841840U (en) * | 2016-07-27 | 2016-12-28 | 辰业环保科技（江苏）有限公司 | A kind of incinerator gas control valve |
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| CN206668982U (en) * | 2017-04-20 | 2017-11-24 | 孙树炜 | A kind of gas detection sealed connection valve with sampling functions |
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Cited By (3)
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| CN112648421A (en) * | 2020-12-21 | 2021-04-13 | 李祖宇 | Natural gas line sampling valve |
| CN116718438A (en) * | 2023-08-07 | 2023-09-08 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
| CN116718438B (en) * | 2023-08-07 | 2023-10-27 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
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| CN111271482B (en) | 2021-12-03 |
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