CN109000061B - A general joint of getting gas for SF6 gas test - Google Patents

A general joint of getting gas for SF6 gas test Download PDF

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Publication number
CN109000061B
CN109000061B CN201810955008.1A CN201810955008A CN109000061B CN 109000061 B CN109000061 B CN 109000061B CN 201810955008 A CN201810955008 A CN 201810955008A CN 109000061 B CN109000061 B CN 109000061B
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China
Prior art keywords
disc
gas
pipe
joint
ring
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CN201810955008.1A
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CN109000061A (en
Inventor
王腾滨
徐育福
林滔
林忠立
谢雍燊
陈闽江
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State Grid Fujian Electric Power Co Ltd
Maintenance Branch of State Grid Fujian Electric Power Co Ltd
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State Grid Fujian Electric Power Co Ltd
Maintenance Branch of State Grid Fujian Electric Power Co Ltd
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Priority to CN201810955008.1A priority Critical patent/CN109000061B/en
Publication of CN109000061A publication Critical patent/CN109000061A/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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/06Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
    • 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
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • 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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00Joints with fluid cut-off means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The invention provides a universal gas taking joint for SF6 gas testing, which comprises a gas source connecting end, a second pipe and a testing instrument connecting end, wherein the gas source connecting end is connected with the second pipe; the second pipe is connected with the gas source connecting end and the testing instrument connecting end; the test instrument connecting end comprises a first disc and a second disc which are used for butt joint of a test instrument, and a plurality of instrument gas circuit connectors are arranged at the second disc; a connecting ring is arranged at the side end of the first disc; the tail end of the second pipe penetrates through the connecting ring, and the tail end opening is positioned on the ring surface of the connecting ring; the connecting ring is rotatably arranged in the annular groove of the second disc; a plurality of air taking through holes are formed in the second disc; the outlet of the air taking through hole is communicated with an instrument air passage joint; when gas testing is carried out, the second disc rotates, so that the gas taking through hole connected with the instrument gas circuit joint matched with the testing operation is communicated with the second pipe, and the elastic piece in the blind hole presses the top block into the arc-shaped groove to position the second disc; the invention is provided with the instrument gas circuit connector of various testing instruments, and can conveniently carry out testing operation.

Description

A general joint of getting gas for SF6 gas test
Technical Field
The invention relates to the technical field of gas detection, in particular to a universal gas taking joint for SF6 gas testing.
Background
The SF6 gas has excellent insulating and arc extinguishing performance, and is widely applied to bushings, transformers and circuit breakers. Sampling from equipment filled with SF6 gas and carrying out gas quality analysis become an important technology for equipment fault diagnosis at present, and have significance for discovering latent faults in the equipment in time and guaranteeing safe and stable operation of a power grid.
At present, the existing SF6 gas test gas taking connector is fixed, gas taking ports of SF6 meters of different manufacturers are different, a single gas taking connector cannot be matched with SF6 gas test meters of different models, dozens of gas ports are needed to be made for one-time work such as the annual inspection of an extra-high voltage bus, the corresponding gas taking connector needs to be replaced before the gas taking test every time, the work efficiency is low, and the consumption of manpower and time is large.
Disclosure of Invention
The invention provides a universal gas taking connector for SF6 gas testing, which is an instrument gas circuit connector with various testing instruments and can conveniently carry out testing operation.
The invention adopts the following technical scheme.
A universal gas take-off fitting for SF6 gas testing, the gas take-off fitting comprising a gas source connection end, a second tube (33) and a test instrument connection end; the starting end of the second pipe is communicated with the first pipe (1) of the air source connecting end, and the tail end of the second pipe is connected with the connecting end of the testing instrument; the test instrument connecting end comprises a first disc (6) and a second disc (8) which are used for butt joint of test instruments, and a plurality of instrument gas circuit connectors (11) with different specifications are arranged at the second disc;
a connecting ring (7) is arranged at the side end of the first disc (6); the tail end of the second pipe penetrates through the connecting ring, and the tail end opening is positioned on the ring surface of the connecting ring; the connecting ring is rotatably arranged in an annular groove (9) of the second disc; the first disk and the second disk are jointed and connected by a T-shaped rotating disk (12) to form a combined body;
a plurality of air taking through holes (10) with inlets communicated with the annular groove are formed in the second disc; the outlet of the air taking through hole is communicated with an instrument air passage joint; an arc-shaped groove (13) is formed in the disc surface of the first disc, and a blind hole (14) facing the arc-shaped groove is vertically formed in the disc surface of the second disc beside the air taking through hole; the top block (15) is supported in the blind hole by an elastic piece (16);
when the gas test is carried out, the second disc rotates, the gas taking through hole connected with the instrument gas circuit joint matched with the test operation is communicated with the second pipe, and the elastic piece in the blind hole presses the top block into the arc-shaped groove to position the second disc.
The gas source connecting end comprises a first pipe (1), a ring sleeve (2) and a sealing nut (3); the outer wall of the first pipe is provided with an external thread matched with the air source interface; the outlet of the first pipe is fixed at the inlet of the second pipe by a ring sleeve and a nut.
A sealing ring groove (4) is formed in one side, facing the first pipe, of the ring sleeve; and a sealing ring (5) is arranged in the sealing ring groove.
The elastic piece (16) is a spring; an upper half hoop (17) is sleeved at the upper end of the combination body, and an upper half sealing strip (18) is embedded at the inner wall of the upper half hoop; the upper half sealing strip is attached to the joint of the first disc and the second disc; a lower half hoop (19) is sleeved at the lower end of the combination body, and a lower half sealing strip (20) is embedded at the inner wall of the lower half sealing strip; the lower half sealing strip is attached to the joint of the first disc and the second disc; the upper half hoop (17) and the lower half hoop (19) are mutually involuted;
an upper connecting block (21) is fixed at the side end of the upper half hoop; an upper handle (22) penetrates through the upper connecting block (21); a first circular ring (23) is sleeved and fixed on the upper handle; the first circular ring is rotatably connected to the upper connecting block; a first threaded rod (24) which is integrally formed with the upper handle is fixed at the lower end of the upper handle;
an upper fixing block (25) fixed with a second pipe (33) is arranged at the lower end of the upper connecting block, an upper threaded hole (26) is formed in the upper end of the upper fixing block, the first threaded rod is connected with the upper fixing block through the upper threaded hole, a lower connecting block (27) is fixed to the side end of the lower half hoop, a lower handle (28) penetrates through the lower connecting block, a second circular ring (29) is sleeved and fixed on the lower handle, and the second circular ring is rotatably connected to the lower connecting block (27); the handle lower extreme is fixed with rather than integrated into one piece's second threaded rod (30) down, the connecting block lower extreme is equipped with down fixed block (31) fixed with the second pipe down, the fixed block upper end is equipped with down screw hole (32) down, the second threaded rod is connected with fixed block down through screw hole down.
The instrument gas circuit connectors with different specifications are respectively matched with SF6 gas test meters with different models.
One end of the ejector block facing the arc-shaped groove is hemispherical; when the top block is embedded in the arc-shaped groove, if the second disc rotates, the top block can be extruded out by the arc-shaped groove.
The inner diameter of the second pipe is the same as the aperture of the air taking through hole.
The first tube has the same inner diameter as the second tube.
The use method of the gas taking joint comprises the following steps;
a1, connecting the external thread of the first pipe with the air source interface, rotating the sealing nut to rotate the second pipe, and screwing the second pipe to drive the first pipe to the air source interface; the air source interface is jointed with the ring sleeve; the sealing ring groove limits the sealing ring, and the sealing ring is extruded and compressed by the butt joint part to play a sealing role;
a2, rotating a second disc to drive an annular groove and a blind hole to rotate, extruding a top block by the first disc, contracting a spring, enabling one end of the top block to leave from an arc-shaped groove, sleeving the annular groove on the ring to rotate, and communicating the second pipe with an instrument gas path joint to be used through a corresponding gas taking through hole when the instrument gas path joint to be used is rotated to one side of a second pipe, wherein the instrument gas path joint not to be used is always blocked by a connecting ring, and at the moment, the top block reaches the next arc-shaped groove, resetting the spring, and pushing the top block into the current arc-shaped groove to play a role in positioning; at this time, the gas test can be performed.
The second disc (8) also drives the T-shaped rotating disc (12) to rotate in the first disc (6), the T-shaped rotating disc plays a role in limiting, an upper half hoop (17) is sleeved on the upper half section of the second disc and the first disc, an upper half sealing strip (18) seals the joint of the second disc and the first disc, a lower half hoop (19) is sleeved on the lower half section of the second disc and the first disc, a lower half sealing strip (20) seals the joint of the second disc and the first disc, and the upper half hoop and the lower half hoop are vertically closed to form integral sealing;
when the upper handle (22) is rotated, the upper handle drives the first circular ring (23) and the first threaded rod (24) to rotate, the first circular ring rotates in the upper connecting block (21), the first threaded rod is connected with the upper threaded hole (26) through threads, the upper connecting block (21) is connected with the upper fixing block (25), and the upper half hoop (17) is fixed;
when the lower handle (28) is rotated; the lower handle drives a second circular ring (29) and a second threaded rod (30) to rotate, the second circular ring rotates in the lower connecting block (27), the second threaded rod is connected with the lower threaded hole (32) through threads, the lower connecting block (27) is connected with the lower fixing block (31), and the effect of fixing the lower half hoop (19) is achieved.
Compared with the prior art, the invention has the beneficial effects that: by arranging a plurality of instrument gas path connectors, the gas path connectors can be respectively matched with a plurality of SF6 gas test meters with different models, so that the working efficiency is improved, and the consumption of manpower and time is reduced; when the joint to be used is rotated to one side of the second pipe by rotating the second disc, the second pipe is communicated with the joint to be used through the corresponding through hole, the through hole not to be used is always blocked by the circular ring, and the conversion of different joints can be conveniently carried out, so that the use is convenient; through with first half clamp cover in the first section of second disc and first disc, first half sealing strip is sealed to the junction of second disc and first disc, overlaps the second section of second disc and first disc with second half clamp, and second half sealing strip is sealed to the junction of second disc and first disc, and first half clamp and second half clamp are involutive from top to bottom, form overall seal, and sealing performance is good.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the matching of blind holes, a top block and an arc-shaped groove on the surface of a second disc;
FIG. 3 is a schematic view of the mating of the first disk, the connecting ring and the second tube;
FIG. 4 is a schematic view of the annular groove and the air extraction through hole of the second disk;
FIG. 5 is a schematic view of the upper seal bar and lower clamp half construction;
in the figure: the device comprises a first pipe 1, a ring sleeve 2, a sealing nut 3, a sealing ring groove 4, a sealing ring 5, a first disc 6, a connecting ring 7, a second disc 8, an annular groove 9, a gas taking through hole 10, an instrument gas circuit connector 11, a T-shaped rotating disc 12, an arc-shaped groove 13, a blind hole 14, a top block 15, an elastic piece 16, an upper half clamp 17, an upper half sealing strip 18, a lower half clamp 19, a lower half sealing strip 20, an upper connecting block 21, an upper handle 22, a first ring 23, a first threaded rod 24, an upper fixing block 25, an upper threaded hole 26, a lower connecting block 27, a lower handle 28, a second ring 29, a second threaded rod 30, a lower fixing block 31, a lower threaded hole 32 and a second pipe 33.
Detailed Description
1-5, a universal gas take-off fitting for SF6 gas testing, the gas take-off fitting comprising a gas supply connection end, a second tube 33, and a test instrument connection end; the starting end of the second pipe is communicated with the first pipe 1 of the air source connecting end, and the tail end of the second pipe is connected with the connecting end of the testing instrument; the connecting end of the test instrument comprises a first disc 6 and a second disc 8 which are used for butt joint of the test instrument, and a plurality of instrument gas circuit connectors 11 with different specifications are arranged at the second disc;
a connecting ring 7 is arranged at the side end of the first disc 6; the tail end of the second pipe penetrates through the connecting ring, and the tail end opening is positioned on the ring surface of the connecting ring; the connecting ring is rotatably arranged in the annular groove 9 of the second disc; the first disk and the second disk are jointed and connected by a T-shaped rotating disk 12 to form a combined body;
a plurality of air taking through holes 10 with inlets communicated with the annular groove are formed in the second disc; the outlet of the air taking through hole is communicated with an instrument air passage joint; an arc-shaped groove 13 is formed in the disc surface of the first disc, and a blind hole 14 facing the arc-shaped groove is vertically formed in the disc surface of the second disc beside the air taking through hole; the top block 15 is supported in the blind hole by an elastic piece 16;
when the gas test is carried out, the second disc rotates, the gas taking through hole connected with the instrument gas circuit joint matched with the test operation is communicated with the second pipe, and the elastic piece in the blind hole presses the top block into the arc-shaped groove to position the second disc.
The gas source connecting end comprises a first pipe 1, a ring sleeve 2 and a sealing nut 3; the outer wall of the first pipe is provided with an external thread matched with the air source interface; the outlet of the first pipe is fixed at the inlet of the second pipe by a ring sleeve and a nut.
A sealing ring groove 4 is formed in one side, facing the first pipe, of the ring sleeve; and a sealing ring 5 is arranged in the sealing ring groove.
The elastic piece 16 is a spring; an upper half hoop 17 is sleeved at the upper end of the combination body, and an upper half sealing strip 18 is embedded at the inner wall of the upper half hoop; the upper half sealing strip is attached to the joint of the first disc and the second disc; the lower end of the combination body is sleeved with a lower half hoop 19, and a lower half sealing strip 20 is embedded in the inner wall of the lower half sealing strip; the lower half sealing strip is attached to the joint of the first disc and the second disc; the upper half hoop 17 and the lower half hoop 19 are mutually involutory;
an upper connecting block 21 is fixed at the side end of the upper half hoop; an upper handle 22 is penetrated on the upper connecting block 21; a first circular ring 23 is sleeved and fixed on the upper handle; the first circular ring is rotatably connected to the upper connecting block; a first threaded rod 24 integrally formed with the upper handle is fixed at the lower end of the upper handle;
an upper fixing block 25 fixed with a second pipe 33 is arranged at the lower end of the upper connecting block, an upper threaded hole 26 is formed in the upper end of the upper fixing block, the first threaded rod is connected with the upper fixing block through the upper threaded hole, a lower connecting block 27 is fixed at the side end of the lower half hoop, a lower handle 28 penetrates through the lower connecting block, a second circular ring 29 is sleeved and fixed on the lower handle, and the second circular ring is rotatably connected to the lower connecting block 27; the lower handle lower extreme is fixed with rather than integrated into one piece's second threaded rod 30, the connecting block lower extreme is equipped with down fixed block 31 fixed with the second pipe down, the fixed block upper end is equipped with down screw hole 32 down, the second threaded rod is connected with lower fixed block through screw hole down.
The instrument gas circuit connectors with different specifications are respectively matched with SF6 gas test meters with different models.
One end of the ejector block facing the arc-shaped groove is hemispherical; when the top block is embedded in the arc-shaped groove, if the second disc rotates, the top block can be extruded out by the arc-shaped groove.
The inner diameter of the second pipe is the same as the aperture of the air taking through hole.
The first tube has the same inner diameter as the second tube.
The use method of the gas taking joint comprises the following steps;
a1, connecting the external thread of the first pipe with the air source interface, rotating the sealing nut to rotate the second pipe, and screwing the second pipe to drive the first pipe to the air source interface; the air source interface is jointed with the ring sleeve; the sealing ring groove limits the sealing ring, and the sealing ring is extruded and compressed by the butt joint part to play a sealing role;
a2, rotating a second disc to drive an annular groove and a blind hole to rotate, extruding a top block by the first disc, contracting a spring, enabling one end of the top block to leave from an arc-shaped groove, sleeving the annular groove on the ring to rotate, and communicating the second pipe with an instrument gas path joint to be used through a corresponding gas taking through hole when the instrument gas path joint to be used is rotated to one side of a second pipe, wherein the instrument gas path joint not to be used is always blocked by a connecting ring, and at the moment, the top block reaches the next arc-shaped groove, resetting the spring, and pushing the top block into the current arc-shaped groove to play a role in positioning; at this time, the gas test can be performed.
The second disc 8 also drives the T-shaped rotating disc 12 to rotate in the first disc 6, the T-shaped rotating disc has a limiting effect, the upper half hoop 17 is sleeved on the upper half section of the second disc and the first disc, the joint of the second disc and the first disc is sealed by the upper half sealing strip 18, the lower half hoop 19 is sleeved on the lower half section of the second disc and the first disc, the joint of the second disc and the first disc is sealed by the lower half sealing strip 20, and the upper half hoop and the lower half hoop are vertically combined to form integral sealing;
when the upper handle 22 is rotated, the upper handle drives the first circular ring 23 and the first threaded rod 24 to rotate, the first circular ring rotates in the upper connecting block 21, the first threaded rod is connected with the upper threaded hole 26 through threads, the upper connecting block 21 is connected with the upper fixing block 25, and the upper half hoop 17 is fixed;
when the lower handle 28 is rotated; the lower handle drives the second ring 29 and the second threaded rod 30 to rotate, the second ring rotates in the lower connecting block 27, and the second threaded rod is connected with the lower fixing block 31 through the threaded connection with the lower threaded hole 32, so that the lower half hoop 19 is fixed.
In this example, the gas source is an SF6 gas storage tank or an SF6 comprehensive tester.
While the foregoing shows and describes the principles of the present invention, together with the principal features and advantages thereof, the foregoing embodiments and description have been made only by way of illustration of the principles of the invention, as various changes and modifications may be made therein without departing from the spirit and scope of the invention.

Claims (5)

1. A general joint of getting gas for SF6 gas test characterized by: the gas taking joint comprises a gas source connecting end, a second pipe (33) and a testing instrument connecting end; the starting end of the second pipe is communicated with the first pipe (1) of the air source connecting end, and the tail end of the second pipe is connected with the connecting end of the testing instrument; the test instrument connecting end comprises a first disc (6) and a second disc (8) which are used for butt joint of test instruments, and a plurality of instrument gas circuit connectors (11) with different specifications are arranged at the second disc;
a connecting ring (7) is arranged at the side end of the first disc (6); the tail end of the second pipe penetrates through the connecting ring, and the tail end opening is positioned on the ring surface of the connecting ring; the connecting ring is rotatably arranged in an annular groove (9) of the second disc; the first disk and the second disk are jointed and connected by a T-shaped rotating disk (12) to form a combined body;
a plurality of air taking through holes (10) with inlets communicated with the annular groove are formed in the second disc; the outlet of the air taking through hole is communicated with an instrument air passage joint; an arc-shaped groove (13) is formed in the disc surface of the first disc, and a blind hole (14) facing the arc-shaped groove is vertically formed in the disc surface of the second disc beside the air taking through hole; the top block (15) is supported in the blind hole by an elastic piece (16);
when gas testing is carried out, the second disc rotates, so that the gas taking through hole connected with the instrument gas circuit joint matched with the testing operation is communicated with the second pipe, and the elastic piece in the blind hole presses the top block into the arc-shaped groove to position the second disc;
the gas source connecting end comprises a first pipe (1), a ring sleeve (2) and a sealing nut (3); the outer wall of the first pipe is provided with an external thread matched with the air source interface; the outlet of the first pipe is fixed at the inlet of the second pipe by a ring sleeve and a nut;
a sealing ring groove (4) is formed in one side, facing the first pipe, of the ring sleeve; a sealing ring (5) is arranged in the sealing ring groove;
the elastic piece (16) is a spring; an upper half hoop (17) is sleeved at the upper end of the combination body, and an upper half sealing strip (18) is embedded at the inner wall of the upper half hoop; the upper half sealing strip is attached to the joint of the first disc and the second disc; a lower half hoop (19) is sleeved at the lower end of the combination body, and a lower half sealing strip (20) is embedded at the inner wall of the lower half sealing strip; the lower half sealing strip is attached to the joint of the first disc and the second disc; the upper half hoop (17) and the lower half hoop (19) are mutually involuted;
an upper connecting block (21) is fixed at the side end of the upper half hoop; an upper handle (22) penetrates through the upper connecting block (21); a first circular ring (23) is sleeved and fixed on the upper handle; the first circular ring is rotatably connected to the upper connecting block; a first threaded rod (24) which is integrally formed with the upper handle is fixed at the lower end of the upper handle;
an upper fixing block (25) fixed with a second pipe (33) is arranged at the lower end of the upper connecting block, an upper threaded hole (26) is formed in the upper end of the upper fixing block, the first threaded rod is connected with the upper fixing block through the upper threaded hole, a lower connecting block (27) is fixed to the side end of the lower half hoop, a lower handle (28) penetrates through the lower connecting block, a second circular ring (29) is sleeved and fixed on the lower handle, and the second circular ring is rotatably connected to the lower connecting block (27); a second threaded rod (30) which is integrally formed with the lower handle is fixed at the lower end of the lower handle, a lower fixing block (31) fixed with a second pipe is arranged at the lower end of the lower connecting block, a lower threaded hole (32) is formed in the upper end of the lower fixing block, and the second threaded rod is connected with the lower fixing block through the lower threaded hole;
the use method of the gas taking joint comprises the following steps;
a1, connecting the external thread of the first pipe with the air source interface, rotating the sealing nut to rotate the second pipe, and screwing the second pipe to drive the first pipe to the air source interface; the air source interface is jointed with the ring sleeve; the sealing ring groove limits the sealing ring, and the sealing ring is extruded and compressed by the butt joint part to play a sealing role;
a2, rotating a second disc to drive an annular groove and a blind hole to rotate, extruding a top block by the first disc, contracting a spring, enabling one end of the top block to leave from an arc-shaped groove, sleeving the annular groove on the ring to rotate, and communicating the second pipe with an instrument gas path joint to be used through a corresponding gas taking through hole when the instrument gas path joint to be used is rotated to one side of a second pipe, wherein the instrument gas path joint not to be used is always blocked by a connecting ring, and at the moment, the top block reaches the next arc-shaped groove, resetting the spring, and pushing the top block into the current arc-shaped groove to play a role in positioning; then, gas taking operation of gas test can be carried out;
the second disc (8) also drives the T-shaped rotating disc (12) to rotate in the first disc (6), the T-shaped rotating disc plays a role in limiting, an upper half hoop (17) is sleeved on the upper half section of the second disc and the first disc, an upper half sealing strip (18) seals the joint of the second disc and the first disc, a lower half hoop (19) is sleeved on the lower half section of the second disc and the first disc, a lower half sealing strip (20) seals the joint of the second disc and the first disc, and the upper half hoop and the lower half hoop are vertically closed to form integral sealing;
when the upper handle (22) is rotated, the upper handle drives the first circular ring (23) and the first threaded rod (24) to rotate, the first circular ring rotates in the upper connecting block (21), the first threaded rod is connected with the upper threaded hole (26) through threads, the upper connecting block (21) is connected with the upper fixing block (25), and the upper half hoop (17) is fixed;
when the lower handle (28) is rotated; the lower handle drives a second circular ring (29) and a second threaded rod (30) to rotate, the second circular ring rotates in the lower connecting block (27), the second threaded rod is connected with the lower threaded hole (32) through threads, the lower connecting block (27) is connected with the lower fixing block (31), and the effect of fixing the lower half hoop (19) is achieved.
2. The universal gas extraction joint for SF6 gas testing of claim 1, wherein: the instrument gas circuit connectors with different specifications are respectively matched with SF6 gas test meters with different models.
3. The universal gas extraction joint for SF6 gas testing of claim 1, wherein: one end of the ejector block facing the arc-shaped groove is hemispherical; when the top block is embedded in the arc-shaped groove, if the second disc rotates, the top block can be extruded out by the arc-shaped groove.
4. The universal gas extraction joint for SF6 gas testing of claim 1, wherein: the inner diameter of the second pipe is the same as the aperture of the air taking through hole.
5. The universal gas extraction joint for SF6 gas testing of claim 1, wherein: the first tube has the same inner diameter as the second tube.
CN201810955008.1A 2018-08-21 2018-08-21 A general joint of getting gas for SF6 gas test Active CN109000061B (en)

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Application Number Priority Date Filing Date Title
CN201810955008.1A CN109000061B (en) 2018-08-21 2018-08-21 A general joint of getting gas for SF6 gas test

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Application Number Priority Date Filing Date Title
CN201810955008.1A CN109000061B (en) 2018-08-21 2018-08-21 A general joint of getting gas for SF6 gas test

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CN109000061A CN109000061A (en) 2018-12-14
CN109000061B true CN109000061B (en) 2020-08-14

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112361024B (en) * 2020-11-25 2021-07-13 浙江石化阀门有限公司 High-temperature quick-opening spherical sealing cut-off valve
CN112361025B (en) * 2020-11-25 2021-08-06 浙江石化阀门有限公司 Quick opening mechanism of quick opening high-temperature spherical sealing cut-off valve

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CN104315286A (en) * 2014-10-17 2015-01-28 国网辽宁省电力有限公司检修分公司 Special tee for test of sulfur hexafluoride gas and use method of tee
CN104653915A (en) * 2013-11-18 2015-05-27 广西大学 Disc type exhaust pipe joint for small engine test bench
CN105479672A (en) * 2015-12-10 2016-04-13 荣昌精密机械(苏州)有限公司 Injection molding machine nozzle
CN206300816U (en) * 2016-12-07 2017-07-04 贵州电网有限责任公司都匀供电局 A kind of operating in short-circuit and shunt formula sulfur hexafluoride gas test pipe-line system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4358789A (en) * 1988-10-21 1990-04-26 Ashleigh Richard Pople Water distribution device
NL8802701A (en) * 1988-11-03 1990-06-01 Stork Amsterdam Disc-type valve - has disc with eccentric passages aligned in turn with one in other disc
JPH06312158A (en) * 1993-04-30 1994-11-08 Matsui Mfg Co Method and device for generating air vibration wave
CN2549285Y (en) * 2002-06-10 2003-05-07 蒋克伟 Double fluids conversion valve
CN101535695A (en) * 2006-11-13 2009-09-16 罗伯特.博世有限公司 Valve for controlling volumetric flows
CN104653915A (en) * 2013-11-18 2015-05-27 广西大学 Disc type exhaust pipe joint for small engine test bench
CN104315286A (en) * 2014-10-17 2015-01-28 国网辽宁省电力有限公司检修分公司 Special tee for test of sulfur hexafluoride gas and use method of tee
CN105479672A (en) * 2015-12-10 2016-04-13 荣昌精密机械(苏州)有限公司 Injection molding machine nozzle
CN206300816U (en) * 2016-12-07 2017-07-04 贵州电网有限责任公司都匀供电局 A kind of operating in short-circuit and shunt formula sulfur hexafluoride gas test pipe-line system

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