CN116792542A - Adjustable pressure relief valve suitable for buffer tank - Google Patents
Adjustable pressure relief valve suitable for buffer tank Download PDFInfo
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- CN116792542A CN116792542A CN202210588314.2A CN202210588314A CN116792542A CN 116792542 A CN116792542 A CN 116792542A CN 202210588314 A CN202210588314 A CN 202210588314A CN 116792542 A CN116792542 A CN 116792542A
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- 238000007789 sealing Methods 0.000 claims abstract description 179
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Safety Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
An adjustable pressure relief valve suitable for a buffer tank comprises a valve body; the first sealing element and the second sealing element are arranged in the valve body, and the telescopic extrusion device is connected with the first sealing element and the second sealing element; the bottom of the second sealing piece is provided with a connecting piece, and the bottom end of the connecting piece is provided with a sealing head; the bottom of the valve body is provided with a sealing groove, and the sealing groove is plugged by a sealing head; the top of the first sealing piece is provided with a threaded cylinder, and the stud is in threaded connection with the threaded cylinder; the transmission rod is rotatably arranged on the valve body and is in transmission connection with the stud; the guide piece is transversely arranged on the threaded cylinder and penetrates out of the guide opening; the valve body is vertically provided with a pressure graduated scale, and the guide piece is correspondingly provided with a pointer; the valve body is provided with a main pressure relief opening and an auxiliary pressure relief opening, and the outer peripheral surface of the second sealing piece seals the main pressure relief opening. The pressure relief valve is simple to operate and convenient to use, not only can adjust the preset pressure value according to actual needs, but also has the functions of automatic pressure relief and manual pressure relief, and can perform quick pressure relief, so that the safety performance is excellent.
Description
Technical Field
The invention relates to the technical field of pressure relief valves, in particular to an adjustable pressure relief valve suitable for a buffer tank.
Background
The buffer tank is mainly used for buffering pressure fluctuation of the system in various systems, so that the system works more stably. The buffer performance of the buffer tank is mainly realized by compressed air in the compression tank, and the buffer tank is provided with a diaphragm type buffer tank and an air bag type buffer tank, and is widely applied to water supply equipment and a central air conditioning system; the buffer tank can be protected by a pressure relief valve in the use process, the pressure relief valve can be automatically opened and closed according to the working pressure of the system, and the buffer tank is generally arranged on equipment or a pipeline of a closed system to protect the safety of the system; the existing pressure relief valve is simple in structure, the set pressure value can only be a fixed value, the pressure value is difficult to adjust automatically according to needs, the application range is limited, the pressure relief valve is inconvenient to use, in general, pressure relief is carried out only through one pressure relief opening, when the pressure of a medium is too high, the pressure relief valve is not fast and fast, the safety performance is poor, the pressure of the medium in the pressure relief valve is inconvenient to know, manual pressure relief cannot be carried out, the use effect is poor, and improvement is needed.
Disclosure of Invention
Object of the invention
In order to solve the technical problems in the background art, the invention provides the adjustable pressure release valve suitable for the buffer tank, which is simple in operation and convenient to use, can adjust a preset pressure value according to actual needs, has a wide application range, has the functions of automatic pressure release and manual pressure release, can perform quick pressure release, and has excellent safety performance.
(II) technical scheme
The invention provides an adjustable pressure release valve suitable for a buffer tank, which comprises a valve body, a first sealing element, a telescopic extrusion device, a second sealing element, a stud, a transmission rod, a guide element, a first connecting rope, a sealing plug, an iron block, a second connecting rope, a fixing element, a third sealing element, a hose and a central processing unit, wherein the first sealing element is arranged on the valve body;
the bottom of the valve body is provided with a mounting pipe, and the top of the valve body is provided with a pressure display device; the first sealing element and the second sealing element are arranged in the valve body, the first sealing element is positioned above the second sealing element, and the telescopic extrusion device is vertically arranged and connected with the first sealing element and the second sealing element; the bottom of the second sealing piece is vertically provided with a connecting piece, the bottom end of the connecting piece is provided with a sealing head, and the bottom of the sealing head is provided with a pressure sensor; the bottom of the valve body is provided with a sealing groove communicated with the mounting tube, and the sealing groove is plugged by the sealing head; the top of the first sealing piece is vertically provided with a threaded cylinder with an upward opening, and the stud is vertically arranged in the valve body and is in threaded connection with the threaded cylinder; the transmission rod is rotatably arranged on the valve body and is in transmission connection with the stud, and a rocking handle is arranged on the transmission rod; the valve body is vertically provided with a guide opening, and the guide piece is transversely arranged on the threaded cylinder and penetrates out of the guide opening; the valve body is vertically provided with a pressure graduated scale, and the guide piece is correspondingly provided with a pointer;
the valve body is provided with a main pressure relief opening and an auxiliary pressure relief opening, the outer peripheral surface of the second sealing piece seals the main pressure relief opening, and the auxiliary pressure relief opening is positioned between the second sealing piece and the first sealing piece; a pressure release channel is arranged in the second sealing piece, and a hose is communicated with the pressure release channel and the auxiliary pressure release opening; the middle part of the second sealing piece is provided with a cavity, and a limiting groove is vertically arranged in the connecting piece; the third sealing element is inserted into the pressure release channel, the fixing element is arranged in the cavity, and the first elastic element is connected with the third sealing element and the fixing element; an electromagnet is arranged in the limit groove, the iron block is arranged above the electromagnet, and the second connecting rope is connected with the third sealing piece and the iron block;
the top of the second sealing piece is provided with a movable pulley, the inside of the valve body is provided with fixed pulleys, and the number of the fixed pulleys is two groups and is positioned at two sides of the movable pulley; the valve body is provided with a connecting seat, the connecting seat is plugged by a sealing plug, and the sealing plug is provided with a pull ring; the first connecting rope presses the upper parts of the two fixed pulleys and penetrates through the lower parts of the driven pulleys, and the first connecting rope is connected with the valve body and the sealing plug; the central processing unit is in communication connection with the pressure sensor and the pressure display device and is in control connection with the electromagnet.
Preferably, the telescopic extrusion device comprises a first fixed cylinder, a second fixed cylinder, a limiting ring, a connecting rod, a second elastic piece and a third elastic piece;
the first fixed cylinder is vertically arranged on the first sealing element, the opening of the first fixed cylinder faces downwards, and the second fixed cylinder is vertically arranged on the second sealing element and is inserted into the first fixed cylinder upwards; the connecting rod is vertically arranged in the first fixed cylinder and is downwards inserted into the second fixed cylinder, and the second elastic piece is arranged in the second fixed cylinder and is connected with the connecting rod; the limiting ring is arranged on the second fixed cylinder and positioned in the first fixed cylinder, and the third elastic piece is sleeved on the connecting rod and connected with the first fixed cylinder and the limiting ring.
Preferably, the transmission rod is provided with a bevel gear, the stud is correspondingly provided with a bevel gear, and the two bevel gears are in meshed connection.
Preferably, the device further comprises a connecting cylinder; the bottom of the valve body is provided with a gas release pipe which is communicated with the mounting pipe and the connecting cylinder, and a waterproof and breathable film is arranged in the connecting cylinder.
Preferably, the air release pipe is provided with an electromagnetic valve, and the central processing unit is in control connection with the electromagnetic valve.
Preferably, the connecting cylinder is provided with internal threads, the air release pipe is provided with external threads, and the connecting cylinder is in threaded connection with the air release pipe and props against the valve body.
Preferably, the sealing groove is a conical groove, and the sealing head is a conical piece matched with the sealing groove.
Preferably, the valve body is provided with an alarm, and the central processing unit is connected with the alarm in a control manner.
Preferably, a guide wheel is arranged in the cavity, and the second connecting rope presses the guide wheel.
The invention also provides a use method of the pressure relief valve, which comprises the following steps:
s1, rotating a rocking handle to enable a stud to rotate through a transmission rod, enabling a threaded cylinder to vertically move downwards under the guiding action of a guide piece, and enabling the pressure born by a sealing head to be continuously increased;
s2, the pointer moves downwards along with the guide piece, and when the pointer is aligned with a preset pressure scale mark, the rotation of the rocking handle is stopped;
s3, installing the pressure relief valve on an unoperated buffer tank through an installation pipe;
and S4, when the pressure of the medium received by the sealing head is larger than a preset value, the second sealing element moves upwards, the sealing head does not completely seal the sealing groove, the second sealing element does not seal the main pressure relief opening, and the medium passes through the sealing groove and is output through the main pressure relief opening so as to play a role in pressure relief.
The technical scheme of the invention has the following beneficial technical effects:
the rocking handle is rocked to enable the stud to rotate, the threaded cylinder vertically moves downwards, the distance between the first sealing piece and the second sealing piece is continuously reduced, the telescopic extrusion device is continuously compressed, and the pressure born by the sealing head is continuously increased; the pointer moves downwards along with the guide piece until the pointer is aligned with a preset pressure scale mark, the preset pressure value of the pressure release valve can be adjusted according to the requirement, the application range is wide, the adjusting process is simple, and the use is convenient;
when the pressure of the medium received by the sealing head is larger than a preset pressure value, the second sealing piece moves upwards, the sealing head does not completely seal the sealing groove any more, the second sealing piece does not seal the main pressure relief opening any more, and the medium passes through the sealing groove and is output through the main pressure relief opening so as to play a role in pressure relief; the pressure sensor detects the pressure of the medium and sends data to the central processing unit, and the pressure display device displays the pressure of the medium so as to know the pressure of the medium; the electromagnet is electrified to generate magnetic attraction force, the iron block moves downwards under the action of the magnetic attraction force, each second connecting rope pulls each third sealing piece to move into the cavity, the pressure release channel is communicated, a medium enters each hose along each pressure release channel and is output through the auxiliary pressure release port, rapid pressure release is realized under the combined action of the main pressure release port and the auxiliary pressure release port, and the safety of the pressure release process and the damage prevention of the pressure release valve are facilitated;
an operator pulls the pull ring outwards to pull out the sealing plug, the first connecting rope pulls the second sealing piece to move upwards, so that the sealing head does not seal the sealing groove any more, at the moment, a medium passes through the sealing groove and is output through the main pressure relief opening, manual pressure relief operation is realized, the prevention effect is achieved, and the use effect is excellent; in addition, the automatic pressure relief is that the medium is firstly transferred between the first sealing element and the second sealing element, at the moment, the pressure between the medium is reduced, and then the medium is discharged from the valve body, so that the medium cannot cause too great impact to operators; similarly, the manual pressure relief is buffered once in the valve body, and the impact force during discharging is smaller.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable pressure release valve for a buffer tank according to the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic diagram showing connection between the second sealing member and the connecting member in the adjustable pressure release valve for the surge tank according to the present invention.
Fig. 5 is a schematic structural diagram of a telescopic extrusion device in an adjustable pressure release valve suitable for a buffer tank according to the present invention.
Fig. 6 is a control block diagram of an adjustable pressure release valve for a surge tank according to the present invention.
Reference numerals: 1. a valve body; 2. a first seal; 3. a telescopic extrusion device; 4. a second seal; 5. a main pressure relief port; 6. a connecting piece; 7. a sealing head; 8. a pressure sensor; 9. sealing grooves; 10. installing a pipe; 11. a gas discharge tube; 12. a connecting cylinder; 13. a waterproof breathable film; 14. an electromagnetic valve; 15. a thread cylinder; 16. a stud; 17. a transmission rod; 18. a rocking handle; 19. a guide member; 20. a guide opening; 21. a pressure scale; 22. a pointer; 23. a pressure display device; 24. an alarm; 25. a movable pulley; 26. a fixed pulley; 27. a first connecting rope; 28. a sealing plug; 29. a pull ring; 30. a connecting seat; 31. an auxiliary pressure relief port; 32. a limit groove; 33. an electromagnet; 34. iron blocks; 35. a cavity; 36. a second connecting rope; 37. a first elastic member; 38. a fixing member; 39. a third seal; 40. a pressure relief channel; 41. a hose; 42. a first fixed cylinder; 43. a second fixed cylinder; 44. a limiting ring; 45. a connecting rod; 46. a second elastic member; 47. a third elastic member; 48. and a central processing unit.
Detailed Description
As shown in fig. 1-6, the adjustable pressure release valve for the buffer tank provided by the invention comprises a valve body 1, a first sealing element 2, a telescopic extrusion device 3, a second sealing element 4, a stud 16, a transmission rod 17, a guide element 19, a first connecting rope 27, a sealing plug 28, an iron block 34, a second connecting rope 36, a fixing element 38, a third sealing element 39, a hose 41 and a central processing unit 48;
the bottom of the valve body 1 is provided with a mounting tube 10, and the top of the valve body 1 is provided with a pressure display device 23; the first sealing element 2 and the second sealing element 4 are arranged in the valve body 1, the first sealing element 2 is positioned above the second sealing element 4, and the telescopic extrusion device 3 is vertically arranged and connected with the first sealing element 2 and the second sealing element 4; the telescopic extrusion device 3 comprises a first fixed cylinder 42, a second fixed cylinder 43, a limiting ring 44, a connecting rod 45, a second elastic piece 46 and a third elastic piece 47; the first fixed cylinder 42 is vertically arranged on the first sealing element 2, the opening of the first fixed cylinder 42 faces downwards, and the second fixed cylinder 43 is vertically arranged on the second sealing element 4 and is inserted upwards into the first fixed cylinder 42; the connecting rod 45 is vertically arranged in the first fixed cylinder 42 and is downwardly inserted into the second fixed cylinder 43, and the second elastic member 46 is arranged in the second fixed cylinder 43 and is connected with the connecting rod 45; the limiting ring 44 is arranged on the second fixed cylinder 43 and positioned in the first fixed cylinder 42, and the third elastic piece 47 is sleeved on the connecting rod 45 and connected with the first fixed cylinder 42 and the limiting ring 44; the second elastic member 46 and the third elastic member 47 are in a compressed state, and the second fixed cylinder 43 applies downward pressure to the second seal member 4;
the bottom of the second sealing element 4 is vertically provided with a connecting element 6, the bottom end of the connecting element 6 is provided with a sealing head 7, and the bottom of the sealing head 7 is provided with a pressure sensor 8; the bottom of the valve body 1 is provided with a sealing groove 9 communicated with an installation tube 10, and the sealing groove 9 is plugged by a sealing head 7; the top of the first sealing element 2 is vertically provided with a threaded cylinder 15 with an upward opening, and a stud 16 is vertically arranged in the valve body 1 and is in threaded connection with the threaded cylinder 15; the transmission rod 17 is rotatably arranged on the valve body 1 and is in transmission connection with the stud 16, and a rocking handle 18 is arranged on the transmission rod 17; the valve body 1 is vertically provided with a guide opening 20, and the guide piece 19 is transversely arranged on the thread cylinder 15 and penetrates out of the guide opening 20; a pressure graduated scale 21 is vertically arranged on the valve body 1, and a pointer 22 is correspondingly arranged on the guide piece 19;
the valve body 1 is provided with a main pressure relief opening 5 and an auxiliary pressure relief opening 31, the outer peripheral surface of the second sealing element 4 seals the main pressure relief opening 5, and the auxiliary pressure relief opening 31 is positioned between the second sealing element 4 and the first sealing element 2; a pressure release channel 40 is arranged in the second sealing piece 4, and a hose 41 is communicated with the pressure release channel 40 and the auxiliary pressure release opening 31; the middle part of the second sealing element 4 is provided with a cavity 35, and a limiting groove 32 is vertically arranged in the connecting element 6; the third sealing element 39 is inserted into the pressure release channel 40, the fixing element 38 is arranged in the cavity 35, and the first elastic element 37 is connected with the third sealing element 39 and the fixing element 38; an electromagnet 33 is arranged in the limit groove 32, an iron block 34 is arranged above the electromagnet 33, and a second connecting rope 36 is connected with a third sealing element 39 and the iron block 34;
the top of the second sealing element 4 is provided with a movable pulley 25, the inside of the valve body 1 is provided with fixed pulleys 26, and the number of the fixed pulleys 26 is two groups and is positioned at two sides of the movable pulley 25; the valve body 1 is provided with a connecting seat 30, the sealing plug 28 plugs the connecting seat 30, and the sealing plug 28 is provided with a pull ring 29; the first connecting rope 27 presses the upper parts of the two fixed pulleys 26 and passes through the lower part of the driven pulley 25, and the first connecting rope 27 connects the valve body 1 and the sealing plug 28; the CPU 48 is in communication with the pressure sensor 8 and the pressure display device 23, and is in control connection with the electromagnet 33.
In an alternative embodiment, the transmission rod 17 is provided with bevel gears, and the stud 16 is correspondingly provided with bevel gears, and the bevel gears are in meshed connection.
In an alternative embodiment, the connector barrel 12 is also included; the bottom of the valve body 1 is provided with a gas release pipe 11, the gas release pipe 11 is communicated with the mounting pipe 10 and the connecting cylinder 12, a waterproof and breathable film 13 is arranged in the connecting cylinder 12, when the medium is liquid, and the pressure of the medium is lower than a preset pressure value, the sealing head 7 still plugs the sealing groove 9 at the moment, and the air in the medium can be discharged through the gas release pipe 11; the electromagnetic valve 14 is arranged on the air leakage pipe 11, the CPU 48 is in control connection with the electromagnetic valve 14, and when the medium is air, the electromagnetic valve 14 is closed, namely air leakage is not carried out through the air leakage pipe 11; the connecting cylinder 12 is provided with internal threads, the air release pipe 11 is provided with external threads, the connecting cylinder 12 is in threaded connection with the air release pipe 11 and props against the valve body 1, and the connecting cylinder 12 is convenient to replace and is beneficial to use.
In an alternative embodiment, the sealing groove 9 is a conical groove, and the sealing head 7 is a conical piece matched with the sealing groove, so that the sealing effect is improved.
In an alternative embodiment, the valve body 1 is provided with an alarm 24, and the central processor 48 is in control connection with the alarm 24. When the medium pressure is greater than a certain value, the central processor 48 controls the alarm 24 to give an alarm to remind operators, so that the safety performance is improved.
In an alternative embodiment, a guiding wheel is provided in the cavity 35, and the second connecting rope 36 presses the guiding wheel, which guiding wheel plays a guiding role.
The invention also provides a use method of the pressure relief valve, which comprises the following steps:
s1, rotating a rocking handle 18 to enable a stud 16 to rotate through a transmission rod 17, enabling a threaded cylinder 15 to vertically move downwards under the guiding action of a guide piece 19, and enabling the pressure applied to a sealing head 7 to be continuously increased;
s2, the pointer 22 moves downwards along with the guide piece 19, and when the pointer 22 is aligned with a preset pressure scale line, the rotation of the rocking handle 18 is stopped;
s3, installing the pressure relief valve on an unoperated buffer tank through an installation pipe 10;
and S4, when the pressure of the medium received by the sealing head 7 is greater than a preset value, the second sealing element 4 moves upwards, the sealing head 7 does not completely seal the sealing groove 9, the second sealing element 4 does not seal the main pressure relief opening 5, and the medium passes through the sealing groove 9 and is output through the main pressure relief opening 5 so as to play a role in pressure relief.
In the invention, the rocking handle 18 is rocked to rotate the transmission rod 17, so that the stud 16 rotates circumferentially in the horizontal direction, the threaded cylinder 15 moves vertically downwards under the guiding action of the guide piece 19, the distance between the first sealing piece 2 and the second sealing piece 4 is continuously reduced, the telescopic extrusion device 3 is continuously compressed, and the pressure applied to the sealing head 7 is continuously increased; the pointer 22 moves downwards along with the guide piece 19, and when the pointer 22 is aligned with the preset pressure scale mark, the rotation of the rocking handle 18 is stopped, the preset pressure value of the pressure release valve can be adjusted according to the requirement, the application range is wide, the adjusting process is simple, and the use is convenient;
when the pressure of the medium received by the sealing head 7 is larger than a preset pressure value in use, the second sealing element 4 moves upwards, the sealing head 7 does not completely seal the sealing groove 9 any more, the second sealing element 4 does not seal the main pressure relief opening 5 any more, and the medium passes through the sealing groove 9 and is output through the main pressure relief opening 5 so as to play a role in pressure relief; the pressure sensor 8 detects the pressure of the medium and sends the data to the central processing unit 48, the pressure display device 23 displays the pressure of the medium, when the pressure of the medium is larger than a certain value (the critical value can be preset) and the main pressure relief opening 5 is difficult to relieve pressure quickly, the central processing unit 48 controls the electromagnet 33 to generate magnetic attraction, the iron block 34 moves downwards under the action of the magnetic attraction, each second connecting rope 36 pulls each third sealing element 39 to move into the cavity 35, the first elastic element 37 is in a compressed state, the pressure relief channel 40 is communicated, the medium enters each hose 41 along each pressure relief channel 40 and is output through the auxiliary pressure relief opening 31, the aim of quick pressure relief can be realized under the combined action of the main pressure relief opening 5 and the auxiliary pressure relief opening 31, and the safety of the pressure relief process and the damage prevention of the pressure relief valve are also facilitated; after the pressure relief is completed, the electromagnet 33 is controlled to be powered off, and the first elastic piece 37 resets and pushes the third sealing piece 39 to reinsert the third sealing piece into the pressure relief channel 40;
when the pressure of the medium is smaller than but always close to the preset pressure value, the sealing head 7 still plugs the sealing groove 9, at the moment, if an operator wants to release pressure, the operator can pull the pull ring 29 outwards to pull the sealing plug 28, and further pull the second sealing element 4 to move upwards through the first connecting rope 27, so that the sealing head 7 does not seal the sealing groove 9 any more, at the moment, the medium passes through the sealing groove 9 and is output through the main pressure release opening 5, the manual pressure release operation is realized, the prevention effect is achieved, and the use effect is excellent; in addition, the automatic pressure relief is that the medium is firstly transferred between the first sealing element 2 and the second sealing element 4, at the moment, the pressure between the medium is reduced, and then the medium is discharged from the valve body 1, so that the medium cannot cause too great impact to operators; similarly, the manual pressure relief is buffered once in the valve body 1, and the impact force during discharging is small.
Claims (10)
1. An adjustable pressure release valve suitable for a buffer tank is characterized by comprising a valve body (1), a first sealing element (2), a telescopic extrusion device (3), a second sealing element (4), a stud (16), a transmission rod (17), a guide element (19), a first connecting rope (27), a sealing plug (28), an iron block (34), a second connecting rope (36), a fixing element (38), a third sealing element (39), a hose (41) and a central processing unit (48);
the bottom of the valve body (1) is provided with a mounting pipe (10), and the top of the valve body (1) is provided with a pressure display device (23); the first sealing element (2) and the second sealing element (4) are arranged in the valve body (1), the first sealing element (2) is positioned above the second sealing element (4), and the telescopic extrusion device (3) is vertically arranged and connected with the first sealing element (2) and the second sealing element (4); the bottom of the second sealing piece (4) is vertically provided with a connecting piece (6), the bottom end of the connecting piece (6) is provided with a sealing head (7), and the bottom of the sealing head (7) is provided with a pressure sensor (8); the bottom of the valve body (1) is provided with a sealing groove (9) communicated with the mounting pipe (10), and the sealing groove (9) is plugged by the sealing head (7); the top of the first sealing piece (2) is vertically provided with a threaded cylinder (15) with an upward opening, and a stud (16) is vertically arranged in the valve body (1) and is in threaded connection with the threaded cylinder (15); the transmission rod (17) is rotatably arranged on the valve body (1) and is in transmission connection with the stud (16), and a rocking handle (18) is arranged on the transmission rod (17); a guide opening (20) is vertically arranged on the valve body (1), and a guide piece (19) is transversely arranged on the threaded cylinder (15) and penetrates out of the guide opening (20); a pressure graduated scale (21) is vertically arranged on the valve body (1), and a pointer (22) is correspondingly arranged on the guide piece (19);
the valve body (1) is provided with a main pressure relief opening (5) and an auxiliary pressure relief opening (31), the outer peripheral surface of the second sealing piece (4) seals the main pressure relief opening (5), and the auxiliary pressure relief opening (31) is positioned between the second sealing piece (4) and the first sealing piece (2); a pressure release channel (40) is arranged in the second sealing piece (4), and a hose (41) is communicated with the pressure release channel (40) and the auxiliary pressure release opening (31); a cavity (35) is arranged in the middle of the second sealing element (4), and a limit groove (32) is vertically arranged in the connecting element (6); the third sealing element (39) is inserted into the pressure release channel (40), the fixing element (38) is arranged in the cavity (35), and the first elastic element (37) is connected with the third sealing element (39) and the fixing element (38); an electromagnet (33) is arranged in the limit groove (32), an iron block (34) is arranged above the electromagnet (33), and a second connecting rope (36) is connected with a third sealing piece (39) and the iron block (34);
the top of the second sealing piece (4) is provided with a movable pulley (25), the inside of the valve body (1) is provided with fixed pulleys (26), and the number of the fixed pulleys (26) is two groups and is positioned at two sides of the movable pulley (25); a connecting seat (30) is arranged on the valve body (1), the connecting seat (30) is plugged by a sealing plug (28), and a pull ring (29) is arranged on the sealing plug (28); the first connecting rope (27) presses the upper parts of the two fixed pulleys (26) and penetrates through the lower parts of the driven pulleys (25), and the first connecting rope (27) is connected with the valve body (1) and the sealing plug (28); the central processing unit (48) is in communication connection with the pressure sensor (8) and the pressure display device (23), and is in control connection with the electromagnet (33).
2. An adjustable pressure relief valve for a surge tank according to claim 1, characterized in that the telescopic squeezing means (3) comprises a first fixed cylinder (42), a second fixed cylinder (43), a stop collar (44), a connecting rod (45), a second elastic element (46) and a third elastic element (47);
the first fixed cylinder (42) is vertically arranged on the first sealing piece (2), the opening of the first fixed cylinder (42) faces downwards, and the second fixed cylinder (43) is vertically arranged on the second sealing piece (4) and is inserted into the first fixed cylinder (42) upwards; the connecting rod (45) is vertically arranged in the first fixed cylinder (42) and is downwards inserted into the second fixed cylinder (43), and the second elastic piece (46) is arranged in the second fixed cylinder (43) and is connected with the connecting rod (45); the limiting ring (44) is arranged on the second fixed cylinder (43) and positioned in the first fixed cylinder (42), and the third elastic piece (47) is sleeved on the connecting rod (45) and connected with the first fixed cylinder (42) and the limiting ring (44).
3. An adjustable pressure release valve for a buffer vessel according to claim 1, characterized in that the transmission rod (17) is provided with bevel gears, the stud (16) is correspondingly provided with bevel gears, and the two bevel gears are in meshed connection.
4. An adjustable pressure relief valve for a surge tank according to claim 1, further comprising a connecting barrel (12); the bottom of the valve body (1) is provided with a gas release pipe (11), the gas release pipe (11) is communicated with the mounting pipe (10) and the connecting cylinder (12), and a waterproof and breathable film (13) is arranged in the connecting cylinder (12).
5. An adjustable pressure release valve for a surge tank according to claim 4, characterized in that the air release pipe (11) is provided with a solenoid valve (14), and the central processing unit (48) is in control connection with the solenoid valve (14).
6. An adjustable pressure release valve for a surge tank according to claim 4, characterized in that the connecting cylinder (12) is provided with an internal thread, the venting pipe (11) is provided with an external thread, and the connecting cylinder (12) is in threaded connection with the venting pipe (11) and abuts against the valve body (1).
7. An adjustable pressure relief valve for a surge tank according to claim 1, characterized in that the sealing groove (9) is a conical groove and the sealing head (7) is a conical part cooperating therewith.
8. An adjustable pressure relief valve for a surge tank according to claim 1, characterized in that the valve body (1) is provided with an alarm (24), and the central processor (48) is controlled to be connected with the alarm (24).
9. An adjustable pressure relief valve for a surge tank according to claim 1, characterized in that a guide wheel is provided in the cavity (35), and that the second connecting rope (36) presses the guide wheel.
10. An adjustable pressure relief valve for a surge tank according to any one of claims 1-9, and a method of use thereof, comprising the steps of:
s1, rotating a rocking handle (18) to enable a stud (16) to rotate through a transmission rod (17), enabling a threaded cylinder (15) to vertically move downwards under the guiding action of a guide piece (19), and enabling the pressure born by a sealing head (7) to be continuously increased;
s2, the pointer (22) moves downwards along with the guide piece (19), and when the pointer (22) is aligned with a preset pressure scale line, the rotation of the rocking handle (18) is stopped;
s3, installing the pressure relief valve on an unoperated buffer tank through an installation pipe (10);
s4, when the pressure of the medium received by the sealing head (7) is larger than a preset value, the second sealing element (4) moves upwards, the sealing head (7) does not completely seal the sealing groove (9), the second sealing element (4) does not seal the main pressure relief opening (5), and the medium passes through the sealing groove (9) and is output through the main pressure relief opening (5) so as to play a role in pressure relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588314.2A CN116792542A (en) | 2022-05-27 | 2022-05-27 | Adjustable pressure relief valve suitable for buffer tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588314.2A CN116792542A (en) | 2022-05-27 | 2022-05-27 | Adjustable pressure relief valve suitable for buffer tank |
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| CN116792542A true CN116792542A (en) | 2023-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117228182A (en) * | 2023-11-10 | 2023-12-15 | 靖江市格利环保科技有限公司 | Transfer buffer tank of metal heat exchanger |
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| CN202901408U (en) * | 2012-09-27 | 2013-04-24 | 上海梅山钢铁股份有限公司 | Cloth bag and sliding pin type pressure releasing device |
| CN203857098U (en) * | 2014-05-15 | 2014-10-01 | 青岛海尔空调器有限总公司 | Air conditioner depressurizing device and air conditioner |
| CN205371732U (en) * | 2016-01-13 | 2016-07-06 | 上海中沪阀门（集团）有限公司 | A relief valve for low pressure gas piping |
| CN205446836U (en) * | 2016-04-09 | 2016-08-10 | 浙江众博矿业机械有限公司 | Safety valve |
| CN208859015U (en) * | 2018-09-27 | 2019-05-14 | 中国电建集团山东电力建设有限公司 | A kind of gas burning pipeline safety valve |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202901408U (en) * | 2012-09-27 | 2013-04-24 | 上海梅山钢铁股份有限公司 | Cloth bag and sliding pin type pressure releasing device |
| CN203857098U (en) * | 2014-05-15 | 2014-10-01 | 青岛海尔空调器有限总公司 | Air conditioner depressurizing device and air conditioner |
| CN205371732U (en) * | 2016-01-13 | 2016-07-06 | 上海中沪阀门（集团）有限公司 | A relief valve for low pressure gas piping |
| CN205446836U (en) * | 2016-04-09 | 2016-08-10 | 浙江众博矿业机械有限公司 | Safety valve |
| CN208859015U (en) * | 2018-09-27 | 2019-05-14 | 中国电建集团山东电力建设有限公司 | A kind of gas burning pipeline safety valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117228182A (en) * | 2023-11-10 | 2023-12-15 | 靖江市格利环保科技有限公司 | Transfer buffer tank of metal heat exchanger |
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