CN112324962A - Disassembly-free pressure check valve of pressure release valve - Google Patents
Disassembly-free pressure check valve of pressure release valve Download PDFInfo
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- CN112324962A CN112324962A CN202011217592.4A CN202011217592A CN112324962A CN 112324962 A CN112324962 A CN 112324962A CN 202011217592 A CN202011217592 A CN 202011217592A CN 112324962 A CN112324962 A CN 112324962A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
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- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a disassembly-free pressure relief valve pressure check valve, which comprises a valve main body, a valve disc and a rotating shaft, wherein the valve main body comprises a valve body, a disc and a rotating shaft; the valve body is provided with an oil drain hole and an inflation hole which penetrate through the valve body along the radial direction, the oil drain hole is provided with an oil drain valve, and the inflation hole is provided with an inflation joint; the invention carries out the pressure test on the pressure release valve under the condition of not being disassembled, has simple operation and improves the test efficiency.
Description
Technical Field
The invention relates to the safety field of pressure relief valves, in particular to a disassembly-free pressure relief valve pressure check valve.
Background
A pressure relief valve is a pressure protection device for a transformer. When the inside of the transformer breaks down, oil is decomposed to generate a large amount of gas, and because the transformer is basically closed, a connecting pipe for communicating an oil conservator is thin, the pressure cannot be effectively and rapidly reduced only by a small connecting pipe, the pressure in an oil tank is rapidly increased, and the oil tank of the transformer can be cracked. The pressure release valve is opened in time, part of transformer oil is discharged, the pressure in the oil tank is reduced, and after the pressure in the oil tank is reduced, the pressure release valve is automatically closed and the sealing of the oil tank is kept. In the prior art, when the pressure relief valve is tested, the pressure relief valve needs to be disassembled for testing, and then is installed after the testing is finished, so that the operation is complex, and the efficiency is low.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problems to be solved by the invention are that in the prior art, when the pressure relief valve is tested, the pressure relief valve needs to be disassembled for testing, and then is installed after the testing is finished, so that the operation is complicated, and the efficiency is low.
In order to solve the technical problems, the invention provides the following technical scheme: a disassembly-free pressure relief valve pressure check valve comprises a valve body, a disc and a rotating shaft, wherein the valve body is provided with a through hole and a rotating hole along the radial direction of the through hole, the rotating shaft is positioned in the rotating hole and connected with the disc, and the disc is positioned in the through hole; the valve body is provided with an oil drain hole and an inflation hole which penetrate through along the radial direction, the oil drain hole is provided with an oil drain valve, and the inflation hole is provided with an inflation connector.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: one end of the rotating hole extends along the radial direction to form an accommodating hole, a shaft shoulder is arranged on the part of the rotating shaft in the accommodating hole, a limiting groove is formed in the bottom of the accommodating hole, a limiting boss is arranged on the shaft shoulder, the limiting boss is embedded into the limiting groove, and the limiting groove is a quarter annular groove.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: a spiral groove is formed in one end, located in the containing hole, of the rotating shaft, the path of the spiral groove takes the rotating shaft as an axis, an adjusting part is arranged in the containing hole, the adjusting part is provided with a penetrating adjusting hole, a protrusion is arranged in the adjusting hole and embedded into the spiral groove, a guide block is arranged on the adjusting part in the axial direction, a guide groove is arranged on the containing hole in the axial direction, and the guide block is located in the guide groove; a first spring is arranged between the adjusting piece and the shaft shoulder.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the guide block is provided with a reset groove and a positioning groove along the axial direction, the reset groove is connected with the positioning groove in a head position, a plurality of connected limiting steps are arranged in the positioning groove, the limiting steps are divided into a limiting surface and a guide surface, the limiting surface is parallel to the end surface of the adjusting part, and an included angle between the limiting surface and the guide surface is an acute angle; the guide groove is provided with a sliding groove along the radial direction of the containing hole, a sliding block and a limiting pin are arranged in the sliding groove, a second spring is arranged between one side of the sliding block and the bottom of the sliding groove, a sliding rail is arranged on the other side of the sliding block, a sliding rail groove is formed in one end of the limiting pin and connected with the sliding rail, and the other end of the limiting pin extends into the guide block.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the reset groove is divided into a first end and a second end, the depth of the first end is larger than that of the positioning groove, and the depth of the second end is smaller than that of the positioning groove.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the first end is excessively connected with a positioning groove end arc, and the second end is excessively connected with a positioning groove end arc.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: one end of the rotating shaft is connected with a limiting nut, and the profile of the limiting nut is larger than the cross section profile of the adjusting hole.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the oil drain valve comprises an adapter connected with the oil drain hole, a quick-connection male head connected with the adapter, and a protective cap connected with the quick-connection male head.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the inflation connector comprises an oil drain valve connected with the inflation hole and a protective sleeve connected with the oil drain valve.
As a preferable aspect of the disassembly-free pressure relief valve pressure check valve of the present invention, wherein: the valve body is characterized in that a sealing ring groove is formed in one end face of the valve body, a threaded hole is formed in the valve body, and a sealing ring is connected to the circumference of the disc.
The invention has the beneficial effects that: the invention carries out the pressure test on the pressure release valve under the condition of not being disassembled, has simple operation and improves the test efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic structural diagram of a disassembly-free pressure relief valve pressure verification valve according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a quick-connect valve for inflation in a pressure-check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an oil drain assembly in a pressure check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a valve body in a pressure check valve of a disassembly-free pressure relief valve according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a rotating shaft of a pressure check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an adjustment member of a pressure-check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram illustrating the operation of a pressure-check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram illustrating a positioning principle of a pressure check valve of a disassembly-free pressure relief valve according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Examples
Referring to fig. 1 to 8, the embodiment provides a disassembly-free pressure relief valve pressure check valve, which is mainly used for performing a pressure test on a pressure relief valve of a YSF8-80/130 type series transformer under the condition of no disassembly. Specifically, the valve comprises a valve body 100, which comprises a valve body 101, a disc 102 and a rotating shaft 103, wherein the valve body 101 is integrally a cylindrical valve body 101 provided with a through hole 101a and a rotating hole 101b along the radial direction of the through hole 101a, the through hole 101a is a circular hole, the disc 102 is in a disc shape, and the disc 102 is positioned in the through hole 101 a; when the disc 102 is coaxial with the through hole 101a, the disc 102 can seal the valve body 101, the rotating shaft 103 is located in the rotating hole 101b and connected with the disc 102, the rotating shaft 103 can rotate in the rotating hole 101b, and the connecting mode of the rotating shaft 103 and the disc 102 is a bolt connection. The valve body 101 is provided with an inflation hole 101c and an oil drain hole 101d which penetrate through along the radial direction, the inflation hole 101c is provided with an inflation quick connector 200, the oil drain hole 101d is provided with an oil drain assembly 300, the inflation quick connector 200 and the oil drain assembly 300 are both in the prior art, and the inflation quick connector 200 is a special quick connector for testing an inflation valve.
When pressure test is carried out, the groove surface with the sealing ring of the valve body 101 is connected with a flange surface of a transformer, the groove surface without the sealing ring is connected with a YSF8-80/130 type series transformer pressure release valve, the valve body is firmly fixed by using a bolt M16, oil is discharged firstly, the disc 102 is rotated to be in a coaxial state with the through hole 101a, namely the valve body 101 is closed, the inflating quick connector 200 is opened, the DN8 oil pipe is connected to an oil storage tank, the inflating quick connector 200 is connected with a special conversion joint, air is filled into the valve body 101, and the pressure is less than 0.02MPa, so that oil discharge is carried out. After oil drainage is finished, the oil drainage assembly 300 is closed, the inflation quick connector 200 is connected, an inflation test is carried out, after the test is finished, the inflation quick connector 200 is pulled out, a protective cap is arranged, and the valve body 101 is opened, namely the rotating shaft 103 and the disc 102 are rotated to open the through hole 101 a.
In addition, the disc 102 needs to be locked when the through hole 101a of the valve body 101 is opened or closed. One end of the rotating hole 101b extends radially to form a containing hole 101e, the diameter of the containing hole 101e is larger than that of the rotating hole 101b, a shoulder 103a is arranged on the part of the rotating shaft 103 located in the containing hole 101e, the diameter of the shoulder 103a is larger than that of the rotating shaft 103 and the rotating hole 101b, furthermore, a limiting groove 101f is arranged at the bottom of the containing hole 101e, a limiting boss 103b is arranged on the shoulder 103a, the limiting boss 103b is embedded into the limiting groove 101f, the limiting groove 101f is a quarter circular groove, namely, the arc angle of the limiting groove 101f is 90 degrees, namely, the relative rotating angle between the rotating shaft 103 and the rotating hole 101b is 0-90 degrees, the limiting boss 103b is located at one end of the limiting groove 101f, at the moment, the disc 102 and the through hole 101a are coaxially sealed, when the rotating angle is 90 degrees, the axis of the disc 102 is perpendicular to the through hole 101a, the stopper boss 103b is located at the other end of the stopper groove 101f, and has the largest flow rate through the through hole 101 a.
Furthermore, a spiral groove 103c is arranged at one end of the rotating shaft 103, which is located in the accommodating hole 101e, the path of the spiral groove 103c takes the rotating shaft 103 as an axis and is spiral, an adjusting part 104 is arranged in the accommodating hole 101e, the adjusting part 104 is provided with an adjusting hole 104a which penetrates through the adjusting hole and is sleeved on the rotating shaft 103, a protrusion 104b is arranged in the adjusting hole 104a, the protrusion 104b is embedded into the spiral groove 103c, the adjusting part 104 is axially provided with a guide block 104c, the accommodating hole 101e is axially provided with a guide groove 101g, and the guide block 104c is located in the guide groove 101g and can limit the rotation of the adjusting part 104, so that the adjusting part 104 can only move along the axial direction, and when the adjusting part 104 moves, the protrusion 104b is matched with the spiral groove 103c to convert the linear motion into the circular motion, and the rotating; preferably, a first spring a is disposed between the adjusting member 104 and the shoulder 103a, the first spring a is a pressure spring, and the pressure of the first spring a makes the adjusting member 104 located at a position away from the shoulder 103a, in this state, the disc 102 and the through hole 101a are coaxial to block the through hole 101a, and the disc 102 can be rotated only when the adjusting member 104 is pushed.
Preferably, the surface of the adjusting member 104 is provided with a scale along the axis, so that the opening angle of the disc 102 can be observed in real time.
Further, when the disc 102 needs to be locked at a certain position, the guide block 104c is provided with a reset groove 104d and a positioning groove 104e along the axial direction, the reset groove 104d and the positioning groove 104e are arranged in parallel and have the same width, wherein the reset groove 104d and the positioning groove 104e are connected at the head to form a loop, the positioning groove 104e is internally provided with a plurality of connected limiting steps 104f, the limiting steps 104f are in a ratchet strip shape, the limiting steps 104f are divided into a limiting surface 104g and a guide surface 104h, the limiting surface 104g is parallel to the end surface of the adjusting piece 104 to limit the limiting pin 107, the limiting step 104f can enable the guide surface 104h to move along the limiting pin 107, and the included angle between the limiting surface 104g and the guide surface 104h is an acute angle.
Further, the guide groove 101g is provided with a slide groove 101i along the radial direction of the accommodating hole 101e, the slide block 106 and the limit pin 107 are arranged in the slide groove 101i, a second spring B is arranged between one side of the slide block 106 and the bottom of the slide groove 101i, the second spring B is a pressure spring, and the slide block 106 can move along the radial direction of the accommodating hole 101e in the slide groove 101 i.
The other side of the sliding block 106 is provided with a sliding rail 106a, one end of the limit pin 107 is provided with a sliding rail groove 107a, the sliding rail groove 107a is connected with the sliding rail 106a, so that the limit pin 107 can move linearly along the sliding rail 106a, and the other end of the limit pin 107 extends into the guide block 104 c.
Preferably, the reset groove 104d is divided into a first end 104d-1 and a second end 104d-2, the first end 104d-1 is the end far away from the disc 102, the depth of the first end 104d-1 is greater than that of the positioning groove 104e, the depth of the second end 104d-2 is less than that of the positioning groove 104e, and the connection between the reset groove 104d and the positioning groove 104e is smooth. First end 104d-1 is in arcuate transition with one end of detent 104e, and second end 104d-2 is in arcuate transition with one end of detent 104 e.
Therefore, in the initial state, the disc 102 and the through hole 101a are coaxial to make the valve body 101 in the closed state, and at this time, one end of the limit pin 107 is located at one end of the positioning groove 104e close to the disc 102, when the angle of the disc 102 needs to be adjusted, the adjusting piece 104 is pushed, firstly, because the depth of the second end 104d-2 is smaller than that of the positioning groove 104e, the limit pin 107 can be located in the positioning groove 104e, and the limit pin 107 passes through the limiting steps 104f while pushing, and simultaneously, the adjusting piece 104 enables the rotating shaft 103 to rotate and further the disc 102 to rotate, and can be located at a certain position within 0-90 degrees, because one end of the limit pin 107 abuts against the limiting surface 104g, when the adjusting piece 104 is continuously pushed to enable the disc 102 to rotate to the maximum angle of 90 degrees, the limit pin 107 is embedded on the limiting step 104f at the tail end, namely, the through; when the through hole 101a needs to be closed, the adjusting member 104 is continuously pushed, at this time, one end of the limit pin 107 passes through the arc-shaped groove at the joint of the reset groove 104d and the positioning groove 104e and moves into the first end 104d-1 along the slide rail 106a, the limit pin 107 is located in the reset groove 104d, so that the adjusting member 104 is not limited at this time, the adjusting member 104 completes the initial reset under the action of the first spring a, and the limit pin 107 moves from the second end 104d-2 to the other end of the positioning groove 104e, at this time, the through hole 101a is locked in a closed state.
Furthermore, in order to prevent the adjusting part 104 from falling off, one end of the rotating shaft 103 is connected with a limiting nut 108, the profile of the limiting nut 108 is larger than the cross-sectional profile of the adjusting hole 104a, when the adjusting part 104 is installed, the adjusting part 104 is installed firstly, so that the protrusion 104b is embedded into the spiral groove 103c, and then the limiting nut 108 is installed.
It should be noted that the inflation quick connector 200 is a prior art, and includes an adapter 201 connected to the inflation hole 101c, a quick connector male 202 connected to the adapter 201, and a protective cap 203 connected to the quick connector male 202, the quick connector male 202 can be connected to the oil pipe, and the protective cap 203 can lock the opening of the quick connector male 202; the oil drain assembly 300 is also a prior art, and includes an oil drain valve 301 connected to the oil drain hole 101d, and a protective cover 302 connected to the oil drain valve 301.
Preferably, one end face of the valve body 101 is provided with a seal ring groove 101j, the seal ring groove 101j can be sealed according to rubber, the seal ring groove 101j of the valve body 101 is connected with a transformer flange face, the other end face of the valve body 101 is connected with a YSF8-80/130 series transformer pressure relief valve, the valve body 101 is further provided with a threaded hole 101k, and the periphery of the disc 102 is connected with a seal ring 109.
This embodiment can be when carrying out the pressure release valve and suppress the experiment, need not dismantle, and can test according to the flow size of actual demand regulating valve body 101.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a pressure relief valve pressure check valve who exempts from to dismantle which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the valve body (100) comprises a valve body (101), a disc (102) and a rotating shaft (103), the valve body (101) is provided with a through hole (101a) and a rotating hole (101b) along the radial direction of the through hole (101a), the rotating shaft (103) is located in the rotating hole (101b) and connected with the disc (102), and the disc (102) is located in the through hole (101 a);
the valve body (101) is provided with an inflation hole (101c) and an oil drain hole (101d) which penetrate through along the radial direction, the inflation hole (101c) is provided with an inflation quick connector (200), and the oil drain hole (101d) is provided with an oil drain assembly (300).
2. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 1, wherein: one end of the rotating hole (101b) extends along the radial direction to form a containing hole (101e), a shaft shoulder (103a) is arranged on the part, located in the containing hole (101e), of the rotating shaft (103), a limiting groove (101f) is formed in the bottom of the containing hole (101e), a limiting boss (103b) is arranged on the shaft shoulder (103a), the limiting boss (103b) is embedded into the limiting groove (101f), and the limiting groove (101f) is a quarter circular groove.
3. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 2, wherein: a spiral groove (103c) is formed in one end, located in a containing hole (101e), of the rotating shaft (103), the path of the spiral groove (103c) takes the rotating shaft (103) as an axis, an adjusting piece (104) is arranged in the containing hole (101e), the adjusting piece (104) is provided with a penetrating adjusting hole (104a), a protrusion (104b) is arranged in the adjusting hole (104a), the protrusion (104b) is embedded into the spiral groove (103c), a guide block (104c) is axially arranged on the adjusting piece (104), a guide groove (101g) is axially arranged in the containing hole (101e), and the guide block (104c) is located in the guide groove (101 g);
a first spring (A) is arranged between the adjusting piece (104) and the shaft shoulder (103 a).
4. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 3, wherein: the guide block (104c) is provided with a reset groove (104d) and a positioning groove (104e) along the axial direction, the reset groove (104d) is connected with the positioning groove (104e) in the head position, a plurality of connected limiting steps (104f) are arranged in the positioning groove (104e), the limiting steps (104f) are divided into a limiting surface (104g) and a guide surface (104h), the limiting surface (104g) is parallel to the end surface of the adjusting part (104), and an included angle between the limiting surface (104g) and the guide surface (104h) is an acute angle;
the guide groove (101g) is provided with a sliding groove (101i) along the radial direction of the containing hole (101e), a sliding block (106) and a limiting pin (107) are arranged in the sliding groove (101i), a second spring (B) is arranged between one side of the sliding block (106) and the bottom of the sliding groove (101i), a sliding rail (106a) is arranged on the other side of the sliding block (106), a sliding rail groove (107a) is formed in one end of the limiting pin (107), the sliding rail groove (107a) is connected with the sliding rail (106a), and the other end of the limiting pin (107) extends into the guide block (104 c).
5. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 4, wherein: the reset groove (104d) is divided into a first end (104d-1) and a second end (104d-2), the depth of the first end (104d-1) is larger than that of the positioning groove (104e), and the depth of the second end (104d-2) is smaller than that of the positioning groove (104 e).
6. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 5, wherein: the first end (104d-1) is in arc transition connection with one end of the positioning groove (104e), and the second end (104d-2) is in arc transition connection with one end of the positioning groove (104 e).
7. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 6, wherein: one end of the rotating shaft (103) is connected with a limiting nut (108), and the profile of the limiting nut (108) is larger than the cross section profile of the adjusting hole (104 a).
8. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 7, wherein: aerify and connect (200) soon including with adapter (201) that aerify hole (101c) and connect, with the male head of connecing soon (202) that adapter (201) are connected, and with protective cap (203) that the male head of connecing soon (202) are connected.
9. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 8, wherein: the oil drain assembly (300) comprises an oil drain valve (301) connected with the oil drain hole (101d), and a protective sleeve (302) connected with the oil drain valve (301).
10. The disassembly-free pressure relief valve pressure verification valve as claimed in claim 9, wherein: a sealing ring groove (101j) is formed in one end face of the valve body (101), a threaded hole (101k) is formed in the valve body (101), and a sealing ring (109) is connected to the circumference of the disc (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011217592.4A CN112324962B (en) | 2020-11-04 | 2020-11-04 | Disassembly-free pressure check valve of pressure release valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011217592.4A CN112324962B (en) | 2020-11-04 | 2020-11-04 | Disassembly-free pressure check valve of pressure release valve |
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| CN112324962A true CN112324962A (en) | 2021-02-05 |
| CN112324962B CN112324962B (en) | 2022-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931746A (en) * | 2021-08-30 | 2022-01-14 | 华能南京燃机发电有限公司 | Gas turbine air inlet unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113931746A (en) * | 2021-08-30 | 2022-01-14 | 华能南京燃机发电有限公司 | Gas turbine air inlet unit |
| CN113931746B (en) * | 2021-08-30 | 2022-09-09 | 华能南京燃机发电有限公司 | Gas turbine air inlet unit |
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| CN112324962B (en) | 2022-08-05 |
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