CN114151631A - Leakage-proof interface for electric gas device - Google Patents
Leakage-proof interface for electric gas device Download PDFInfo
- Publication number
- CN114151631A CN114151631A CN202111480846.6A CN202111480846A CN114151631A CN 114151631 A CN114151631 A CN 114151631A CN 202111480846 A CN202111480846 A CN 202111480846A CN 114151631 A CN114151631 A CN 114151631A
- Authority
- CN
- China
- Prior art keywords
- inner spacer
- sleeve
- threaded
- flange
- external
- Prior art date
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 abstract description 22
- 239000002737 fuel gas Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention relates to a leakage-proof interface for an electric gas device, which relates to the technical field of leakage prevention of the gas device and comprises a first connecting flange and a second connecting flange which are arranged in a butt joint mode, wherein a first inner spacer sleeve and a second inner spacer sleeve which are arranged oppositely are arranged in the first connecting flange and the second connecting flange, and external pipes for connecting external equipment are embedded in the first inner spacer sleeve and the second inner spacer sleeve; a movable cavity is formed between the outer sides of the first inner spacer and the second inner spacer and the inner side walls of the first connecting flange and the second connecting flange, and a plurality of locking mechanisms for fixing external pipes are arranged in the movable cavity; the outer connecting pipe is stably fixed between the inner side walls of the first inner spacer and the second inner spacer by arranging the locking mechanism, the outer connecting pipe can be connected with external equipment so as to establish a fuel gas conveying passage, and the whole interface is greatly improved in leak resistance under the double protection of the outer connecting pipe and an external flange structure.
Description
Technical Field
The invention belongs to the technical field of leakage prevention of gas devices, and particularly relates to a leakage-proof interface for an electric gas device.
Background
Along with the gradual improvement of the living standard of people, the gas is used as a novel fuel, is more and more popularized and is accepted by the people, the electric gas equipment and a pipe network are important facilities for guaranteeing the reliable gas supply of cities, the gas is conveyed by a combustible medium, the distribution range is wide, and the gas is related to the gas supply of thousands of households, so that the interface of the electric gas device is required to have better leakage-proof property to guarantee the reliable gas conveying;
the traditional pipeline interface for gas delivery mostly adopts a simple flange connection structure, but still has the literature of medium leakage, and the flange connection cannot be quickly assembled and disassembled, so that the invention provides a leakage-proof interface for an electric gas device.
Disclosure of Invention
The invention aims to solve the problems and provide a leakage-proof interface for an electric gas device, which has a simple structure and reasonable design.
The invention realizes the purpose through the following technical scheme:
a leakage-proof interface for an electric gas device comprises a first connecting flange and a second connecting flange which are arranged in a butt joint mode, wherein a first inner spacer and a second inner spacer which are arranged oppositely are arranged in the first connecting flange and the second connecting flange, and external pipes for connecting external equipment are embedded in the first inner spacer and the second inner spacer;
a movable cavity is formed between the outer sides of the first inner spacer and the second inner spacer and the inner side walls of the first connecting flange and the second connecting flange, and a plurality of locking mechanisms for fixing the external connecting pipes are arranged in the movable cavity.
As a further optimized scheme of the invention, the first connecting flange and the second connecting flange are mutually butted and installed by arranging the connecting seat and the fixing bolt, so that a gap is reserved between the lower end of the first inner spacer and the upper end of the second inner spacer.
As a further optimization scheme of the invention, the locking mechanism comprises a locking rod arranged in the movable cavity and connected with the external connecting pipe, a rack arranged on the locking rod, a threaded sleeve arranged on the connecting seat, a threaded rod in threaded fit with the threaded sleeve, a connecting shaft connected with the threaded rod, a threaded connecting block arranged at one end of the connecting shaft and a gear arranged on the connecting shaft and meshed with the rack, threaded holes corresponding to the threaded connecting block are arranged at the position, corresponding to the gap between the first inner spacer and the second inner spacer, outside the external connecting pipe, and the gear ratio of the rack to the gear is 2-3: 1.
As a further optimized scheme of the invention, the top sleeve is embedded at the upper end of the first inner spacer sleeve, one end of the external connecting pipe extending into the first inner spacer sleeve is in interference fit with the top sleeve, and a connecting sheet is arranged outside the top sleeve and extends into the movable cavity from the first inner spacer sleeve in a penetrating way to be in inserted fit with the lock rod.
As a further optimized scheme of the invention, a buffer end seat connected with the external connecting pipe is arranged in the second inner spacer, and a fixed joint sleeved with the buffer end seat is fixedly arranged at the lower end of the external connecting pipe.
As a further optimized scheme of the invention, the fixed joint comprises a joint body, a stepped inner sunken groove is formed in the joint body, a threaded seat is arranged in the groove, and a plurality of grooves are uniformly formed in the outer part of the joint body.
As a further optimization scheme of the invention, a cavity is arranged in the buffer end seat, a plurality of upright columns are uniformly distributed in the cavity, return springs are sleeved outside the upright columns, the outer end parts of the return springs are connected with buffer blocks, and the outer side wall of the joint body is abutted against the buffer blocks.
As a further optimization scheme of the invention, the buffer blocks are in a semicircular arc shape, the bent ends of the buffer blocks face to the return spring, and two adjacent buffer blocks are mutually abutted and connected through a fixing cap.
The invention has the beneficial effects that:
(1) according to the invention, the locking mechanism is arranged, so that the external connecting pipe is stably fixed between the inner side walls of the first inner spacer and the second inner spacer, the external connecting pipe can be connected with external equipment so as to establish a fuel gas conveying passage, and the whole interface is greatly improved in leak resistance under the double protection of the external connecting pipe and an external flange structure;
(2) through the setting of buffering end seat and inside relevant structure, can resist the impact of the excessive pressure air current of kneck, and then can guarantee that fixed joint and external equipment connect long-term effectual structural connection for device structure compactness obtains further improvement.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a sectional elevation view provided by the present invention;
FIG. 3 is an enlarged view of the structure of portion A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the buffer end block provided by the present invention;
FIG. 5 is a schematic perspective view of a fixed joint provided by the present invention;
in the figure: 1. a first connecting flange; 2. a second connecting flange; 3. an external connection pipe; 4. a connecting seat; 5. a first inner spacer sleeve; 6. a second inner spacer sleeve; 7. jacking and sleeving; 8. a locking mechanism; 81. a lock lever; 82. a threaded sleeve; 83. a threaded rod; 84. a connecting shaft; 85. a threaded connection block; 86. a rack; 87. a gear; 9. fixing the joint; 91. a connector body; 92. a groove; 93. a threaded seat; 10. connecting sheets; 11. fixing the bolt; 12. a buffer end seat; 13. a column; 14. a buffer block; 15. a fixing cap; 16. a return spring.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example one
Referring to fig. 1-3, in the embodiment, a leak-proof interface for an electric gas device is provided, except that the leak-proof interface includes a first connecting flange 1 and a second connecting flange 2 which are in a butt-joint arrangement and are the same as a conventional flange connecting structure, a first inner spacer 5 and a second inner spacer 6 which are oppositely arranged are arranged in the first connecting flange 1 and the second connecting flange 2, an external connection pipe 3 for connecting external equipment is embedded in the first inner spacer 5 and the second inner spacer 6, in addition, a movable cavity is formed between the outer sides of the first inner spacer 5 and the second inner spacer 6 and the inner side walls of the first connecting flange 1 and the second connecting flange 2, and a plurality of locking mechanisms 8 for fixing the external connection pipe 3 are arranged in the movable cavity.
Specifically, the first connecting flange 1 and the second connecting flange 2 are installed in a butt joint manner through arranging the connecting seat 4 and the fixing bolt 11, so that a gap is reserved between the lower end of the first inner spacer 5 and the upper end of the second inner spacer 6, the locking mechanism 8 comprises a locking rod 81 which is arranged in the movable cavity and connected with the outer connecting pipe 3, a rack 86 which is arranged on the locking rod 81, a threaded sleeve 82 which is arranged on the connecting seat 4, a threaded rod 83 which is in threaded fit with the threaded sleeve 82, a connecting shaft 84 which is connected with the threaded rod 83, a threaded connecting block 85 which is arranged at one end of the connecting shaft 84, and a gear 87 which is arranged on the connecting shaft 84 and is meshed with the rack 86, threaded holes which correspond to the threaded connecting block 85 are arranged at the position, corresponding to the gap between the first inner spacer 5 and the second inner spacer 6, outside the outer connecting pipe 3, the gear ratio of the rack 86 to the gear 87 is 2-3:1, the rack 86 is driven while the movement is ensured, so that the gear 87 can rotate for 2-3 circles, so as to ensure that the threaded rod 83 can move a certain displacement towards the direction of the outer connecting tube 3 and the connecting shaft 84 rotates and simultaneously the threaded connecting block 85 rotates, so that the threaded connecting block 85 can be connected with the threaded hole.
The specific operation process is that the first connecting flange 1 is installed on the electric gas device, the installation mode is not limited to welding, threaded connection and the like, then the second connecting flange 2 is installed on the first connecting flange 1 through the connecting seat 4 and the fixing bolt 11, and the first connecting flange 1 is not in direct contact with the second connecting flange 2 and a gap is reserved due to the arrangement of the connecting seat 4, so that a gap is reserved between the lower end of the first inner sleeve 5 and the upper end of the second inner sleeve 6;
the outer connecting pipe 3 extends into the second inner spacer 6 from the bottom end of the second connecting flange 2 and extends into the first inner spacer 5, and at the same time, the outer connecting pipe 3 is locked by the locking mechanism 8 and is fixed between the first inner spacer 5 and the second inner spacer 6, specifically, when the outer connecting pipe 3 is inserted, the lock rod 81 outside the outer connecting pipe extends into the movable cavity until the rack 86 outside the lock rod 81 contacts the gear 87 on the connecting shaft 84, the two generate meshing transmission to cause the connecting shaft 84 to rotate, drive the threaded rod 83 connected at one end of the connecting shaft to relatively move with the threaded sleeve 82, the threaded rod 83 moves a certain displacement towards the outer connecting pipe 3, the threaded connecting block 85 connected with the connecting shaft 84 is close to the threaded hole on the outer connecting pipe 3, and simultaneously, the connecting shaft 84 rotates and simultaneously causes the threaded connecting block 85 to rotate therewith, so that the threaded connecting block 85 is connected with the threaded hole, at the moment, the external connecting pipe 3 is stably fixed between the inner side walls of the first inner spacer 5 and the second inner spacer 6, the external connecting pipe 3 can be connected with external equipment to establish a gas conveying passage, and the leakage-proof performance is greatly improved under the double protection of the external connecting pipe 3 and an external flange structure;
if want to dismantle, according to the mode of above-mentioned installation, only need outwards pull external pipe 3 make it break away from first interior spacer 5 and second interior spacer 6 can, need not additionally to dismantle outside flange structure like this, guarantee the compactness of flange structure under the long-time use.
Example two
Referring to the attached drawing 2 in the specification, on the basis of the first embodiment, a top sleeve 7 is embedded in the upper end of the first inner spacer 5, one end of the external connecting pipe 3 extending into the first inner spacer 5 is in interference fit with the top sleeve 7, so that a sealing structure is established between the top end of the external connecting pipe 3 and the first inner spacer 5 through the top sleeve 7, in addition, a connecting piece 10 is arranged outside the top sleeve 7, the connecting piece 10 penetrates through the first inner spacer 5 and extends into the movable cavity to be in plug fit with a locking rod 81, when the external connecting pipe 3 is inserted into the first inner spacer 5, the locking rod 81 outside the external connecting pipe is connected with one end of the connecting piece 10 penetrating through the first inner spacer 5 and extending into the movable cavity, the structural connectivity of the top sleeve 7 and the external connecting pipe 3 is further ensured, and the tightness of the overall structure is improved.
EXAMPLE III
Referring to the attached drawings 4-5 in the specification, on the basis of the second embodiment, a buffer end seat 12 connected with the external connection pipe 3 is arranged in the second inner spacer 6, and a fixed joint 9 sleeved with the buffer end seat 12 is fixedly arranged at the lower end of the external connection pipe 3.
Wherein, fixed joint 9 is including connecting body 91, the heavy groove in the ladder and the inslot is equipped with screw thread seat 93 in the inside of connecting body 91 has been seted up, a plurality of recesses 92 have evenly been seted up to the outside of connecting body 91, and connect body 91 and stretch into the back and be connected with the lower extreme of external pipe 3 in the buffering end socket 12, and simultaneously, screw thread seat 93 in the heavy groove in the ladder is used for connecting the takeover of other external equipment, and recess 92's setting makes and establishes the passageway between screw thread seat 93 and the buffering end socket 12.
In addition, a cavity is formed in the buffer end seat 12, a plurality of upright columns 13 are uniformly distributed in the cavity, return springs 16 are sleeved outside the upright columns 13, the outer end portions of the return springs 16 are connected with buffer blocks 14, the outer side wall of the joint body 91 is abutted to the buffer blocks 14, the buffer blocks 14 are in a semi-arc shape, the bent ends of the buffer blocks face the return springs 16, and two adjacent buffer blocks 14 are abutted to each other and connected through fixing caps 15.
Can be used to the circulation of gas to carry behind external equipment's takeover access screw thread seat 93, when the overpressure transport appears in the short time gas, the impact of overpressure air current is difficult to be resisted to general kneck, therefore, we cushion end seat 12 with the release buffering through setting up, it is concrete, the lateral wall and the 14 looks butt of a plurality of buffer blocks of joint body 91, when joint body 91 receives the impact conduct the impact force to buffer block 14, a plurality of buffer blocks 14 meet each other through locking cap 15, consequently can be with the impulsive force that receives can the outdiffusion release, can guarantee fixed joint 9 and external equipment joint long-term effectual structural connection through the setting of buffering end seat 12 and inside relevant structure, make the device structure compactness obtain further improvement.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a leak protection interface for electric gas device, is including being first flange (1) and second flange (2) that the butt joint set up, its characterized in that: a first inner spacer sleeve (5) and a second inner spacer sleeve (6) which are oppositely arranged are arranged in the first connecting flange (1) and the second connecting flange (2), and an external connecting pipe (3) for connecting external equipment is embedded in the first inner spacer sleeve (5) and the second inner spacer sleeve (6);
and a movable cavity is formed between the outer sides of the first inner spacer (5) and the second inner spacer (6) and the inner side walls of the first connecting flange (1) and the second connecting flange (2), and a plurality of locking mechanisms (8) for fixing the external connecting pipes (3) are arranged in the movable cavity.
2. The leak resistant interface for an electrical gas-fired device as in claim 1, wherein: the first connecting flange (1) and the second connecting flange (2) are mutually installed in a butt joint mode through the connecting seat (4) and the fixing bolt (11), and a gap is reserved between the lower end of the first inner spacer (5) and the upper end of the second inner spacer (6).
3. A leak proof interface for an electrical gas-fired device as in claim 2, wherein: the locking mechanism (8) comprises a locking rod (81) arranged in the movable cavity and connected with the outer connecting pipe (3), a rack (86) arranged on the locking rod (81), a threaded sleeve (82) arranged on the connecting seat (4), a threaded rod (83) in threaded fit with the threaded sleeve (82), a connecting shaft (84) connected with the threaded rod (83), a threaded connecting block (85) arranged at one end of the connecting shaft (84) and a gear (87) arranged on the connecting shaft (84) and meshed with the rack (86), threaded holes corresponding to the threaded connecting block (85) are formed in the position, corresponding to the gap between the first inner sleeve (5) and the second inner sleeve (6), of the outer connecting pipe (3), and the gear ratio of the rack (86) to the gear (87) is 2-3: 1.
4. A leak proof interface for an electrical gas-fired device as in claim 3, wherein: the upper end of the first inner spacer (5) is embedded with a top sleeve (7), one end of the outer connecting pipe (3) extending into the first inner spacer (5) is in interference fit with the top sleeve (7), and a connecting piece (10) is arranged outside the top sleeve (7) and penetrates through the first inner spacer (5) to extend into the movable cavity to be in plug-in fit with the lock rod (81).
5. A leak proof interface for an electrical gas-fired device as in claim 3, wherein: a buffer end seat (12) connected with the external connecting pipe (3) is arranged in the second inner spacer sleeve (6), and a fixed joint (9) sleeved with the buffer end seat (12) is fixedly arranged at the lower end of the external connecting pipe (3).
6. The leak resistant interface for an electrical gas-fired device as in claim 5, wherein: the fixed joint (9) comprises a joint body (91), a ladder inner sunken groove is formed in the joint body (91), a threaded seat (93) is arranged in the groove, and a plurality of grooves (92) are uniformly formed in the outer portion of the joint body (91).
7. The leak resistant interface for an electrical gas-fired device as in claim 6, wherein: the buffer end seat is characterized in that a cavity is formed in the buffer end seat (12), a plurality of upright columns (13) are uniformly distributed in the cavity, return springs (16) are sleeved outside the upright columns (13), the outer end portions of the return springs (16) are connected with buffer blocks (14), and the outer side wall of the joint body (91) is connected with the buffer blocks (14) in an abutting mode.
8. The leak resistant interface for an electrical gas-fired device as in claim 7 wherein: the buffer blocks (14) are in a semicircular arc shape, the bent ends of the buffer blocks face to the return spring (16), and two adjacent buffer blocks (14) are mutually abutted and connected through a fixing cap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480846.6A CN114151631A (en) | 2021-12-06 | 2021-12-06 | Leakage-proof interface for electric gas device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480846.6A CN114151631A (en) | 2021-12-06 | 2021-12-06 | Leakage-proof interface for electric gas device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114151631A true CN114151631A (en) | 2022-03-08 |
Family
ID=80453357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111480846.6A Pending CN114151631A (en) | 2021-12-06 | 2021-12-06 | Leakage-proof interface for electric gas device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114151631A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902376A (en) * | 1960-06-08 | 1962-08-01 | Sulzer Ag | Securing devices for fuel elements in nuclear reactors |
| US3908788A (en) * | 1972-09-11 | 1975-09-30 | Curt Lennart Hammarstedt | Silencer and flow regulator particularly for water conduits |
| CN2491680Y (en) * | 2001-08-09 | 2002-05-15 | 张宝顺 | Connectino flange for pipeline |
| CN207715969U (en) * | 2017-11-17 | 2018-08-10 | 合肥优亿科机电科技有限公司 | A kind of sewage disposal wear-resistant pipe based on environmental protection |
| CN208669462U (en) * | 2018-08-08 | 2019-03-29 | 浙江宇龙厨卫配件有限公司 | A kind of double gas gas header pipes of explosion-prevention high temperature-resistance high pressure |
| CN210050416U (en) * | 2019-04-08 | 2020-02-11 | 安徽理工大学 | Novel buried gas pipeline interface connection device |
| CN211175782U (en) * | 2019-11-06 | 2020-08-04 | 太原畅达华美新材料科技有限公司 | Connecting mechanism for pipeline |
| CN211976202U (en) * | 2020-04-21 | 2020-11-20 | 昆明冶金高等专科学校 | Shale gas transportation pipeline connection structure convenient to installation |
| CN212407789U (en) * | 2019-12-01 | 2021-01-26 | 段立太 | High-rise building tubular metal resonator bearing device |
| CN213809340U (en) * | 2020-12-07 | 2021-07-27 | 佛山市旭扬机械设备有限公司 | Flange sleeve convenient to assemble |
| CN214008205U (en) * | 2020-12-01 | 2021-08-20 | 金星啤酒集团漯河啤酒有限公司 | Valve flange seal structure |
-
2021
- 2021-12-06 CN CN202111480846.6A patent/CN114151631A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902376A (en) * | 1960-06-08 | 1962-08-01 | Sulzer Ag | Securing devices for fuel elements in nuclear reactors |
| US3908788A (en) * | 1972-09-11 | 1975-09-30 | Curt Lennart Hammarstedt | Silencer and flow regulator particularly for water conduits |
| CN2491680Y (en) * | 2001-08-09 | 2002-05-15 | 张宝顺 | Connectino flange for pipeline |
| CN207715969U (en) * | 2017-11-17 | 2018-08-10 | 合肥优亿科机电科技有限公司 | A kind of sewage disposal wear-resistant pipe based on environmental protection |
| CN208669462U (en) * | 2018-08-08 | 2019-03-29 | 浙江宇龙厨卫配件有限公司 | A kind of double gas gas header pipes of explosion-prevention high temperature-resistance high pressure |
| CN210050416U (en) * | 2019-04-08 | 2020-02-11 | 安徽理工大学 | Novel buried gas pipeline interface connection device |
| CN211175782U (en) * | 2019-11-06 | 2020-08-04 | 太原畅达华美新材料科技有限公司 | Connecting mechanism for pipeline |
| CN212407789U (en) * | 2019-12-01 | 2021-01-26 | 段立太 | High-rise building tubular metal resonator bearing device |
| CN211976202U (en) * | 2020-04-21 | 2020-11-20 | 昆明冶金高等专科学校 | Shale gas transportation pipeline connection structure convenient to installation |
| CN214008205U (en) * | 2020-12-01 | 2021-08-20 | 金星啤酒集团漯河啤酒有限公司 | Valve flange seal structure |
| CN213809340U (en) * | 2020-12-07 | 2021-07-27 | 佛山市旭扬机械设备有限公司 | Flange sleeve convenient to assemble |
Non-Patent Citations (1)
| Title |
|---|
| 李大川;: "高压天然气管道安全设计与防护", 中国工程咨询, no. 07, pages 67 - 69 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101673899B (en) | High pressure resistance sealed connector and adaptor thereof | |
| CN206112358U (en) | Automobile air conditioner pipeline clamp plate and automobile air conditioner pipeline clamp plate assembly | |
| CN203927135U (en) | A kind of corrugated stainless steel tubing rapid pipe joint | |
| CN211344367U (en) | Quick connector | |
| CN114151631A (en) | Leakage-proof interface for electric gas device | |
| CN103470886B (en) | The pipeline clamp connected system of single groove double card structure | |
| CN107202218A (en) | One kind insertion enclosed type connecting interface | |
| CN207018691U (en) | One kind insertion enclosed type connecting interface | |
| CN209747847U (en) | Solar photovoltaic connector fire protection device | |
| KR101167845B1 (en) | A Coupling Device of the Plastic Pipe and the Metal Pipe | |
| CN216812931U (en) | High temperature resistant stop valve of components of a whole that can function independently processing | |
| CN210768692U (en) | In-pipe blanking plug | |
| CN108036135B (en) | Double-cavity hydraulic quick-change connector | |
| CN220566792U (en) | Safety sealing assembly for indoor gas pipeline connection | |
| CN209195271U (en) | One kind can torsion pass telescoping tube | |
| CN112797240A (en) | Self-anchored pipeline joint structure | |
| CN212804653U (en) | Insulating tube connecting device for oil well | |
| CN221236154U (en) | Inspection shaft with quick connect coupling | |
| CN216768652U (en) | Water conservancy pipeline lays with high leakproofness pipeline connection structure | |
| CN220249209U (en) | Spiral corrugated pipe with leakage-proof structure | |
| CN218883266U (en) | Petroleum pipeline | |
| CN104832112A (en) | ATPM-I type oil tube and sleeve sealing connection device, pipe and coupling | |
| CN213929931U (en) | Pipeline heat tracing device | |
| CN218449414U (en) | MPP electric power pipe with high compressive structures | |
| CN210372425U (en) | Connection structure of tailoring sewage pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220308 |