CN112604603A - Pressure vessel with overpressure protection - Google Patents
Pressure vessel with overpressure protection Download PDFInfo
- Publication number
- CN112604603A CN112604603A CN202011448944.7A CN202011448944A CN112604603A CN 112604603 A CN112604603 A CN 112604603A CN 202011448944 A CN202011448944 A CN 202011448944A CN 112604603 A CN112604603 A CN 112604603A
- Authority
- CN
- China
- Prior art keywords
- pressure
- control box
- groove
- hole
- fixed
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention belongs to the field of pressure containers, and particularly relates to a pressure container with overpressure protection, which aims at solving the problems that the existing pressure container basically detects the internal pressure through a pressure gauge and releases the pressure through manually adjusting a pressure release valve, but the manually adjusting the pressure release valve wastes time and labor and cannot release the pressure in time, so that the risk of operators is increased, and the pressure container is easy to damage. The pressure container has a reasonable structure, is convenient to operate, monitors and releases the pressure in the tank body through a mechanical structure, saves time and labor in operation, can release the pressure in time, reduces the risk of operators, and does not damage the pressure container.
Description
Technical Field
The invention relates to the technical field of pressure containers, in particular to a pressure container with overpressure protection.
Background
The pressure container is a closed device which contains gas or liquid and bears certain pressure, at present, in the industries of pharmacy, chemical engineering and the like, the pressure container is generally required to be used for processing materials, and the like, and because the pressure container is required to operate at high temperature and high pressure, the safety of the pressure container is always one of the most important targets for the pressure container;
however, the existing pressure container basically detects the internal pressure through a pressure gauge and releases the pressure through a manual adjusting pressure release valve, but the manual adjusting pressure release valve wastes time and labor, the pressure cannot be released in time, the risk of operators is increased, and the pressure container is easy to damage.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a pressure container with overpressure protection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pressure vessel with overpressure protection comprises a pressure tank, wherein a fixed hole is formed in the top of the pressure tank, an overpressure monitoring pipe is fixedly installed in the fixed hole, a piston plate is slidably installed in the overpressure monitoring pipe, a first rack is fixedly installed on the top of the piston plate, a control box is fixedly installed on the top of the pressure tank, the first rack is slidably connected in the control box, a threaded rod is rotatably installed in the control box, a first gear is fixedly sleeved on the threaded rod, the first rack is meshed with the first gear, a fixed plate is fixedly installed in the control box, a control plate is slidably installed on the top of the fixed plate, a threaded hole is formed in one side of the control plate, the threaded rod is in threaded connection in the threaded hole, fixed blocks are fixedly installed on one side of the fixed plate and the inner wall of one side of the control box, control arms are rotatably installed, fixed grooves are respectively formed in the inner walls of one side of the fixed plate and one side of the control box, moving blocks are respectively slidably mounted in the two fixed grooves, one end of the control arm is rotatably mounted on the corresponding moving block, a control head is fixedly mounted on one side of the moving block, a switch contact is fixedly mounted on the inner wall of one side of the fixed groove, an alarm is fixedly mounted on one side of the control box and electrically connected with the switch contact, a through hole is formed in the top of the pressure tank, a pressure relief plate is fixedly mounted in the through hole, a pressure relief hole is formed in the pressure relief plate, a connecting cylinder is fixedly mounted at the bottom of the fixed plate, a connecting groove is formed in the bottom end of the connecting cylinder, a pressure relief plug is slidably mounted in the connecting groove and mounted in the pressure relief hole, a first spring is fixedly mounted at the top, the groove is formed in the inner wall of one side of the connecting groove, the inserting block is slidably mounted in the groove and mounted in the slot, a threaded groove is formed in one end of the inserting block, a lead screw is connected to the inner thread of the threaded groove, one end of the lead screw is rotatably mounted on the inner wall of one side of the control box, a first belt wheel is fixedly sleeved on the lead screw, a second belt wheel is rotatably mounted on the inner wall of one side of the control box, the second belt wheel is connected with the same belt in a transmission mode with the first belt wheel, a second gear is fixedly mounted on one side of the second belt wheel, a second rack is fixedly mounted on one side of the moving block.
Preferably, one side fixed mounting of pressure release end cap has the third rack, has seted up on one side inner wall of control box and has rotated the hole, rotates downthehole rotation and installs the release link, and the one end fixed mounting of release link has the third gear, and the third gear meshes with the third rack, and the other end fixed mounting of release link has the reset wheel, and the reset wheel rotates and installs the one side at the control box.
Preferably, a rotating groove is formed in the inner wall of one side of the control box, a rotating block is fixedly mounted on one side of the second belt wheel, and the rotating block is rotatably connected in the rotating groove.
Preferably, the one end fixed mounting of first rack has the mount pad, rotates on the mount pad and installs the gyro wheel, and fixed mounting has two curb plates on the top inner wall of control box, and the slide opening has all been seted up to one side of two curb plates, and equal slidable mounting has the cushion socket in two slide openings.
Preferably, the same connection rope of one side fixedly connected with that two cushion blocks are close to each other connects the rope and is connected with the gyro wheel, and the quad slit has all been seted up to one side of two cushion blocks, and equal fixed mounting has a quad bar in two slide holes, and the quad bar is installed in the quad slit that corresponds, all overlaps on two quad bars to be equipped with the second spring, connects two cushion blocks of rope pulling, and the second spring that the cushion block extrusion corresponds, elastic deformation takes place for the second spring.
Preferably, all seted up the auxiliary groove on the both sides inner wall of control box, the both ends of threaded rod are rotated respectively and are installed in two auxiliary grooves, and the position when the threaded rod rotates can be guaranteed in the rotation of auxiliary groove to the threaded rod.
Preferably, a sliding groove is formed in the inner wall of the connecting groove, a sliding block is fixedly mounted on the pressure relief plug, and the sliding block is connected in the sliding groove in a sliding mode.
Preferably, the mounting groove has all been seted up to one side of two control arms, and same connecting block is installed to two mounting groove internal rotations, and the connecting block can the position of stable control arm makeup director at two mounting groove internal rotations.
Compared with the prior art, the invention has the beneficial effects that:
the scheme can monitor the pressure in the pressure tank in real time through the overpressure monitoring pipe, when the pressure in the pressure tank rises abnormally, the pressure in the pressure tank can extrude the piston plate, the piston plate drives the first rack to move, the first rack also drives the mounting seat to move, the roller wheel extrudes the connecting rope, the buffer seat extrudes the corresponding second spring, the first gear drives the threaded rod to rotate, the control plate drives the moving block to move, so that the control arm drives the other moving block to move, after the control head is contacted with the switch contact, the alarm is opened, meanwhile, the second rack drives the second gear to rotate, the belt drives the first belt wheel to rotate, the lead screw drives the insert block to move, the insert block slides out of the slot, the fixed limit of the pressure relief plug can be eliminated, the pressure relief plug opens the pressure relief hole, the pressure in the pressure tank can be released and adjusted, and after the pressure in the pressure tank is reset, the control plate moves in a resetting mode, meanwhile, the resetting wheel is rotated, the resetting rod drives the third gear to rotate, the third rack can drive the pressure relief plug to be inserted into the pressure relief hole again, and the inserting block is inserted into the inserting groove, so that the position of the pressure relief plug can be fixed;
the pressure container has a reasonable structure, is convenient to operate, monitors and releases the pressure in the tank body through a mechanical structure, saves time and labor in operation, can release the pressure in time, reduces the risk of operators, and does not damage the pressure container.
Drawings
FIG. 1 is a schematic view of a front view structure according to the present invention;
FIG. 2 is a schematic view of part A of the structure proposed by the present invention;
FIG. 3 is a schematic structural diagram of part B according to the present invention;
FIG. 4 is a schematic structural diagram of part C according to the present invention;
fig. 5 is a schematic structural diagram of part D according to the present invention.
In the figure: 1. a pressure tank; 2. an overpressure monitoring tube; 3. a piston plate; 4. a control box; 5. a first rack; 6. a threaded rod; 7. a first gear; 8. a fixing plate; 9. a control panel; 10. a fixed block; 11. a control arm; 12. a moving block; 13. a switch contact; 14. an alarm; 15. connecting the columns; 16. a pressure relief plug; 17. a first spring; 18. a through hole; 19. a pressure relief plate; 20. a slot; 21. inserting a block; 22. a screw rod; 23. a first pulley; 24. a second pulley; 25. a second gear; 26. a belt; 27. a third rack; 28. a reset lever; 29. a third gear; 30. a reset wheel; 31. a side plate; 32. a buffer seat; 33. a second spring; 34. a mounting seat; 35. a roller; 36. and connecting ropes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
Referring to fig. 1-5, a pressure vessel with overpressure protection comprises a pressure tank 1, a fixed hole is formed in the top of the pressure tank 1, an overpressure monitoring pipe 2 is fixedly installed in the fixed hole, a piston plate 3 is slidably installed in the overpressure monitoring pipe 2, a first rack 5 is fixedly installed on the top of the piston plate 3, a control box 4 is fixedly installed on the top of the pressure tank 1, the first rack 5 is slidably connected in the control box 4, a threaded rod 6 is rotatably installed in the control box 4, a first gear 7 is fixedly sleeved on the threaded rod 6, the first rack 5 is meshed with the first gear 7, a fixed plate 8 is fixedly installed in the control box 4, a control plate 9 is slidably installed on the top of the fixed plate 8, a threaded hole is formed in one side of the control plate 9, the threaded rod 6 is in threaded connection with the threaded hole, fixed blocks 10 are fixedly installed on one side of the fixed plate 8, the two fixing blocks 10 are rotatably provided with control arms 11, the two control arms 11 are mutually rotatably connected, one side of the fixing plate 8 and one side inner wall of the control box 4 are respectively provided with a fixing groove, a moving block 12 is respectively and slidably arranged in the two fixing grooves, one end of each control arm 11 is rotatably arranged on the corresponding moving block 12, one side of each moving block 12 is fixedly provided with a control head, one side inner wall of each fixing groove is fixedly provided with a switch contact 13, one side of the control box 4 is fixedly provided with an alarm 14, the alarm 14 is electrically connected with the switch contact 13, the top of the pressure tank 1 is provided with a through hole 18, a pressure relief plate 19 is fixedly arranged in the through hole 18, a pressure relief hole is arranged on the pressure relief plate 19, the bottom of the fixing plate 8 is fixedly provided with a connecting cylinder 15, the bottom end of the connecting cylinder 15, the top fixed mounting of pressure release end cap 16 has first spring 17, the one end fixed mounting of first spring 17 is on the inner wall of spread groove, slot 20 has been seted up to one side of pressure release end cap 16, set up flutedly on the one side inner wall of spread groove, slidable mounting has inserted block 21 in the recess, inserted block 21 is installed in slot 20, the thread groove has been seted up to the one end of inserted block 21, thread groove female connection has lead screw 22, the one end of lead screw 22 is rotated and is installed on one side inner wall of control box 4, fixed cover is equipped with first band pulley 23 on the lead screw 22, it installs second band pulley 24 to rotate on one side inner wall of control box 4, second band pulley 24 is connected with same belt 26 with first band pulley 23 transmission, one side fixed mounting of second band pulley 24 has second gear 25, one side fixed mounting of movable block 12 has the second rack, the second rack meshes.
In this embodiment, a third rack 27 is fixedly mounted on one side of the pressure relief plug 16, a rotation hole is formed in the inner wall of one side of the control box 4, a reset rod 28 is rotatably mounted in the rotation hole, a third gear 29 is fixedly mounted at one end of the reset rod 28, the third gear 29 is meshed with the third rack 27, a reset wheel 30 is fixedly mounted at the other end of the reset rod 28, and the reset wheel 30 is rotatably mounted on one side of the control box 4.
In this embodiment, a rotating groove is formed in the inner wall of one side of the control box 4, and a rotating block is fixedly mounted on one side of the second belt pulley 24 and rotatably connected in the rotating groove.
In this embodiment, the one end fixed mounting of first rack 5 has mount pad 34, rotates on the mount pad 34 to install gyro wheel 35, and fixed mounting has two curb plates 31 on the top inner wall of control box 4, and the slide opening has all been seted up to one side of two curb plates 31, and equal slidable mounting has cushion socket 32 in two slide openings.
In this embodiment, the same rope 36 of being connected of one side fixedly connected with that two buffer seat 32 are close to each other, connect rope 36 and be connected with gyro wheel 35, the quad slit has all been seted up to one side of two buffer seat 32, equal fixed mounting has the quad bar in two slide holes, the quad bar is installed in the quad slit that corresponds, all the cover is equipped with second spring 33 on two quad bars, connect two buffer seat 32 of 36 pulling of rope, the second spring 33 that buffer seat 32 extrudees the correspondence, elastic deformation takes place for second spring 33.
In this embodiment, all seted up supplementary groove on the both sides inner wall of control box 4, the both ends of threaded rod 6 are rotated respectively and are installed at two supplementary inslots, and threaded rod 6 is at supplementary inslot rotation, position when can guaranteeing threaded rod 6 and rotate.
In this embodiment, a sliding groove is formed in the inner wall of the connecting groove, a sliding block is fixedly mounted on the pressure relief plug 16, and the sliding block is slidably connected in the sliding groove.
In this embodiment, the mounting groove has all been seted up to one side of two control arms 11, and same connecting block is installed to two mounting groove internal rotations, and the connecting block can stabilize the position of 11 makeups of control arm in two mounting groove internal rotations.
In this embodiment, the pressure in the pressure tank 1 can be monitored in real time through the overpressure monitoring tube 2, when the pressure in the pressure tank 1 rises abnormally, the pressure in the tank can extrude the piston plate 3, the piston plate 3 slides in the overpressure monitoring tube 2, and simultaneously the piston plate 3 drives the first rack 5 to move, the first rack 5 drives the first gear 7 to rotate, the first rack 5 also drives the mounting seat 34 to move, the mounting seat 34 drives the roller 35 to move, the roller 35 extrudes the connecting rope 36, so that the connecting rope 36 pulls the two buffer seats 32, the buffer seats 32 extrude the corresponding second springs 33, the second springs 33 elastically deform, the first gear 7 drives the threaded rod 6 to rotate, the threaded rod 6 drives the control panel 9 to move, the control panel 9 drives the moving block 12 to move, the moving block 12 drives the control arm 11 to rotate, so that the control arm 11 drives the other moving block 12 to move, the moving block 12 drives the control head and the second rack to move, after the control head is contacted with the switch contact 13, the alarm 14 is opened, the operator can be informed in time, meanwhile, the second rack drives the second gear 25 to rotate, the second gear 25 drives the second belt wheel 24 to rotate, the second belt wheel 24 drives the belt 26 to move, the belt 26 drives the first belt wheel 23 to rotate, the first belt wheel 23 drives the screw rod 22 to rotate, the screw rod 22 drives the insert block 21 to move, the insert block 21 slides out of the slot 20, the fixed limit of the pressure relief plug 16 can be eliminated, the pressure relief plug 16 is reset under the elastic action of the first spring 17, the pressure relief hole is opened by the pressure relief plug 16, the pressure in the pressure tank 1 can be released and adjusted, after the pressure in the pressure tank 1 is reset, the control panel 9 resets and moves, the insert block 21 also resets and moves, the reset wheel 30 is rotated, the reset wheel 30 drives the reset rod 28 to rotate, the reset rod 28 drives the third gear 29 to rotate, the third gear 29 drives the third rack 27 to move, the third rack 27 can drive the pressure relief plug 16 to be inserted into the pressure relief hole again, and the insert block 21 is inserted into the slot 20, so that the position of the pressure relief plug 16 can be fixed.
Compared with the prior art, the invention has the technical progress that: the pressure container has a reasonable structure, is convenient to operate, monitors and releases the pressure in the tank body through a mechanical structure, saves time and labor in operation, can release the pressure in time, reduces the risk of operators, and does not damage the pressure container.
Claims (8)
1. The pressure vessel with overpressure protection comprises a pressure tank (1) and is characterized in that a fixed hole is formed in the top of the pressure tank (1), an overpressure monitoring pipe (2) is fixedly installed in the fixed hole, a piston plate (3) is slidably installed in the overpressure monitoring pipe (2), a first rack (5) is fixedly installed on the top of the piston plate (3), a control box (4) is fixedly installed on the top of the pressure tank (1), the first rack (5) is slidably connected in the control box (4), a threaded rod (6) is rotatably installed in the control box (4), a first gear (7) is fixedly sleeved on the threaded rod (6), the first rack (5) is meshed with the first gear (7), a fixed plate (8) is fixedly installed in the control box (4), a control plate (9) is slidably installed on the top of the fixed plate (8), a threaded hole is formed in one side of the control plate (9), the threaded rod (6) is in threaded connection with the threaded hole, the fixed blocks (10) are fixedly arranged on the inner walls of one side of the fixed plate (8) and one side of the control box (4), the control arms (11) are rotatably arranged on the two fixed blocks (10), the two control arms (11) are rotatably connected with each other, fixed grooves are respectively formed in the inner walls of one side of the fixed plate (8) and one side of the control box (4), moving blocks (12) are slidably arranged in the two fixed grooves, one end of each control arm (11) is rotatably arranged on the corresponding moving block (12), a control head is fixedly arranged on one side of each moving block (12), a switch contact (13) is fixedly arranged on the inner wall of one side of each fixed groove, an alarm (14) is fixedly arranged on one side of the control box (4), the alarm (14) is electrically connected with the switch contact (13), and a through hole (, a pressure relief plate (19) is fixedly arranged in the through hole (18), a pressure relief hole is formed in the pressure relief plate (19), a connecting cylinder (15) is fixedly arranged at the bottom of the fixing plate (8), a connecting groove is formed in the bottom end of the connecting cylinder (15), a pressure relief plug (16) is slidably arranged in the connecting groove, the pressure relief plug (16) is arranged in the pressure relief hole, a first spring (17) is fixedly arranged at the top end of the pressure relief plug (16), one end of the first spring (17) is fixedly arranged on the inner wall of the connecting groove, a slot (20) is formed in one side of the pressure relief plug (16), a groove is formed in the inner wall of one side of the connecting groove, an inserting block (21) is slidably arranged in the groove, the inserting block (21) is arranged in the slot (20), a threaded groove is formed in one end of the inserting block (21), a lead screw (22) is, the fixed cover is equipped with first band pulley (23) on lead screw (22), rotates on one side inner wall of control box (4) and installs second band pulley (24), and second band pulley (24) and first band pulley (23) transmission are connected with same belt (26), and one side fixed mounting of second band pulley (24) has second gear (25), and one side fixed mounting of movable block (12) has the second rack, and the second rack meshes with second gear (25).
2. The pressure vessel with overpressure protection as claimed in claim 1, wherein a third rack (27) is fixedly installed at one side of the pressure relief plug (16), a rotation hole is formed in an inner wall of one side of the control box (4), a reset rod (28) is rotatably installed in the rotation hole, a third gear (29) is fixedly installed at one end of the reset rod (28), the third gear (29) is meshed with the third rack (27), a reset wheel (30) is fixedly installed at the other end of the reset rod (28), and the reset wheel (30) is rotatably installed at one side of the control box (4).
3. The pressure vessel with overpressure protection as claimed in claim 1, wherein a rotation groove is opened on an inner wall of one side of the control box (4), and a rotation block is fixedly installed on one side of the second belt wheel (24), and the rotation block is rotatably connected in the rotation groove.
4. The pressure vessel with overpressure protection as claimed in claim 1, wherein a mounting seat (34) is fixedly mounted at one end of the first rack (5), a roller (35) is rotatably mounted on the mounting seat (34), two side plates (31) are fixedly mounted on an inner wall of a top portion of the control box (4), a sliding hole is formed in one side of each of the two side plates (31), and a buffer seat (32) is slidably mounted in each of the two sliding holes.
5. The pressure vessel with overpressure protection as claimed in claim 4, wherein one side of the two buffer bases (32) close to each other is fixedly connected with the same connecting rope (36), the connecting rope (36) is connected with the roller (35), one side of each of the two buffer bases (32) is provided with a square hole, two sliding holes are fixedly provided with square rods, the square rods are installed in the corresponding square holes, and the two square rods are sleeved with the second springs (33).
6. The pressure vessel with overpressure protection as claimed in claim 1, wherein the control box (4) has auxiliary grooves on its two inner walls, and the threaded rod (6) has two ends rotatably mounted in the two auxiliary grooves respectively.
7. The pressure vessel with overpressure protection as claimed in claim 1, wherein the inner wall of the connecting groove is provided with a sliding groove, and a sliding block is fixedly mounted on the pressure relief plug (16) and is slidably connected in the sliding groove.
8. Pressure vessel with overpressure protection as claimed in claim 1, characterized in that one side of both control arms (11) is provided with a mounting groove, and the same connecting block is rotatably mounted in both mounting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448944.7A CN112604603A (en) | 2020-12-09 | 2020-12-09 | Pressure vessel with overpressure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011448944.7A CN112604603A (en) | 2020-12-09 | 2020-12-09 | Pressure vessel with overpressure protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112604603A true CN112604603A (en) | 2021-04-06 |
Family
ID=75232974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011448944.7A Withdrawn CN112604603A (en) | 2020-12-09 | 2020-12-09 | Pressure vessel with overpressure protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112604603A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898756A (en) * | 2021-09-10 | 2022-01-07 | 精工阀门集团有限公司 | Ball valve with pressure relief function |
| CN114321361A (en) * | 2021-12-30 | 2022-04-12 | 南通航泰机械有限公司 | Pressure vessel capable of carrying out pressure regulation and waste heat recovery |
-
2020
- 2020-12-09 CN CN202011448944.7A patent/CN112604603A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898756A (en) * | 2021-09-10 | 2022-01-07 | 精工阀门集团有限公司 | Ball valve with pressure relief function |
| CN113898756B (en) * | 2021-09-10 | 2023-07-18 | 精工阀门集团有限公司 | Ball valve with pressure relief function |
| CN114321361A (en) * | 2021-12-30 | 2022-04-12 | 南通航泰机械有限公司 | Pressure vessel capable of carrying out pressure regulation and waste heat recovery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112604603A (en) | Pressure vessel with overpressure protection | |
| CN110755772B (en) | Self-extinguishing mechanism for van | |
| CN2864251Y (en) | Hand-operated butterfly valve with stopping indicating means | |
| CN110821305B (en) | Two automatic closed locking structure that open door of wisdom commodity circulation storage device of industrial product | |
| CN204927081U (en) | Length manual regulation formula high pressure device of operating a switch | |
| CN110094227B (en) | Mining controllable temperature formula liquid nitrogen fire extinguishing apparatus | |
| CN209493205U (en) | Automatic In-pot Car Retarder | |
| CN117970963B (en) | Liquid level control device | |
| CN113719622A (en) | Telescopic filtering pressure-reducing gate valve | |
| CN111231909A (en) | Rollover prevention device for heavy truck | |
| CN220848922U (en) | Supporting equipment for reconstruction of building wall | |
| CN218934369U (en) | Blowout preventer with protection device | |
| CN216361210U (en) | High leakproofness rubber end cap | |
| CN220602590U (en) | Pipe rack temperature and humidity detection device | |
| CN219832443U (en) | General safety rod | |
| CN204299151U (en) | The adjustable unloading push rod of attached lift scaffold and the guided bearing seat of formation thereof | |
| CN220974986U (en) | Equipment storage device for fire engineering | |
| CN218156575U (en) | Wireless temperature measuring equipment | |
| CN217901222U (en) | Testboard rocking arm of adjustable pressure | |
| DE19638118B4 (en) | Inspection and maintenance device for pipe recoil mechanisms of guns | |
| CN112049943A (en) | Bidirectional isolation valve device | |
| CN211553945U (en) | Oil gas field hydrogen sulfide concentration monitoring device | |
| CN219562908U (en) | Quick-dismantling device for valve maintenance | |
| CN218580703U (en) | Electric power well lid | |
| CN220733145U (en) | DCS cabinet room temperature alarm device |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210406 |