CN210687134U - Nitrogen gas formula water hammer relief valve with valve position indicating device - Google Patents
Nitrogen gas formula water hammer relief valve with valve position indicating device Download PDFInfo
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- CN210687134U CN210687134U CN201921532168.1U CN201921532168U CN210687134U CN 210687134 U CN210687134 U CN 210687134U CN 201921532168 U CN201921532168 U CN 201921532168U CN 210687134 U CN210687134 U CN 210687134U
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- end plate
- guide sleeve
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Abstract
A nitrogen type water hammer relief valve with a valve position indicating device comprises a valve body with an inflow port and an outflow port, a valve core, a spring, a guide sleeve and a valve cavity, wherein a longitudinal cavity communicated with the valve cavity is radially formed in the valve body between the outflow cavity and the valve cavity, an upper end plate is fixedly installed at the upper end of the longitudinal cavity, a guide hole is formed in the center of the upper end plate, and a graduated scale is arranged on one side of the upper end plate; a piston body in sliding sealing fit with the longitudinal cavity is arranged in the longitudinal cavity, hydraulic oil is filled in the cavity at the lower end of the piston body and the front end of the valve core, an indicating rod is fixedly connected to the center of the upper end of the piston body, the upper end of the indicating rod penetrates through the guide hole in a sliding mode and is connected with the pointer, a positioner is arranged at the top end of the indicating rod, a sensor is fixedly arranged on one side of the positioner, and the induction surface is arranged towards the positioner; and a spring is sleeved on the indicating rod between the piston body and the upper end plate. The pressure release valve realizes the visual and remote monitoring of the opening of the main valve, and is convenient for relevant workers to know the working state of the pressure release valve in time.
Description
Technical Field
The utility model relates to a nitrogen gas formula water hammer relief valve with valve position indicating device belongs to pipeline safety protection technical field.
Background
As is known, the main purpose of installing the water hammer relief valve on the long-distance pipeline is to quickly open the water hammer relief valve with a large discharge amount when the liquid in the pipeline generates water pressure impact and reaches a set value, so that the intensity of water hammer pressure waves is weakened, the ultrahigh pressure in the pipeline is effectively relieved, and the purpose of protecting the pipeline and equipment is achieved.
The nitrogen water hammer relief valve has the characteristics of high flow capacity, quick response, strong applicability and the like, is mainly used for water hammer protection of crude oil pipelines, port oil tanker loading and unloading and oil depots, and world famous nitrogen water hammer relief valve manufacturers specially applied to the crude oil pipeline industry mainly comprise American DANIEL company, American Deleisi company and the like, but the conventional nitrogen water hammer relief valve products at home and abroad can realize the visualization and remote monitoring of the opening degree of a main valve, and related workers cannot know the working state of the water hammer relief valve in time.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a nitrogen gas formula water attack relief valve with valve position indicating device, this relief valve can realize that the main valve aperture is visual and remote monitoring, and the operating condition of water attack relief valve is in time known to the relevant staff of being convenient for.
In order to achieve the purpose, the utility model provides a nitrogen gas formula water hammer relief valve with valve position indicating device, including the relief valve, the relief valve includes the valve body that has inflow entrance and egress opening, the disk seat, the case, spring one, guide sleeve and valve pocket, the disk seat sets up in the inflow entrance department of valve body, case and guide sleeve set up in the valve pocket, the valve pocket communicates with the valve block through the pressure release passageway, the spring suit is on the guide sleeve, its one end pushes up on the case, the other end pushes up on the disk seat, the sleeve end cap sets up in the guide sleeve front end near the egress opening department, radially offer the longitudinal cavity that is linked together with the valve pocket on going out the valve body between liquid pocket and the valve pocket, the upper end fixed mounting of longitudinal cavity has the upper end plate, the guiding hole has been seted up in the center of upper end; a piston body in sliding sealing fit with the longitudinal cavity is arranged in the longitudinal cavity, hydraulic oil is filled in the cavity at the lower end of the piston body and the front end of the valve core, an indicating rod is fixedly connected to the center of the upper end of the piston body, the upper end of the indicating rod penetrates through the guide hole in a sliding mode and is connected with a pointer, a positioner is arranged at the top end of the indicating rod, a sensor is fixedly arranged on one side of the positioner, and the induction surface of the sensor is arranged towards the positioner; a second spring is sleeved on the indicating rod between the piston body and the upper end plate.
Furthermore, a first antifriction ring, a first sealing ring and a check ring are arranged between the guide sleeve and the valve core; a second sealing ring is arranged between the guide sleeve and the valve body; a third sealing ring is arranged between the guide sleeve and the sleeve plug; and a second antifriction ring and a fourth sealing ring are arranged between the piston body and the valve body.
Furthermore, an oil injection pipeline parallel to the longitudinal cavity is further arranged in the valve body on one side of the longitudinal cavity, one end of the oil injection pipeline is connected to the lower end face of the upper end plate, the other end of the oil injection pipeline is communicated with the cavity at the lower end of the piston body, and an oil injection check valve is arranged on the oil injection pipeline close to the upper end plate.
Furthermore, an organic glass cover which is used for sleeving the graduated scale, the positioner and the sensor inside the upper end plate is also arranged on the upper section surface of the upper end plate.
The pressure relief valve is characterized in that a longitudinal cavity communicated with the valve cavity is radially arranged on the valve body between the liquid outlet cavity and the valve cavity, hydraulic oil is filled in a lower end cavity of a piston body in the cavity, when the water hammer pressure of an inflow port reaches or exceeds a set value, the force acting on the valve core is greater than the sum of the nitrogen pressure and the spring force on the valve core and is enough to overcome the static friction force between the valve core and the valve body, the valve core moves towards the outflow port, the liquid in the inflow port flows to the outflow port through a gap between the opened valve core and the valve cavity, meanwhile, in the process that the valve core moves towards the outflow port, the hydraulic oil in the cavity is pushed to extrude the piston body to drive an indicating rod to overcome the spring and the static friction force between the piston body and the valve body, the movement distance of a pointer on the indicating rod can be read on a graduated scale, and the, the function of valve position instruction has been realized, and simultaneously, locator and sensor in time transmit data information for remote monitering system, have realized the visual and remote monitoring's of main valve aperture function, and the operating condition of the water hammer relief valve is in time known to the relevant staff of being convenient for, has improved the safety in utilization of pipeline and equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the pressure relief valve comprises a pressure relief valve body 2, an inflow port 3, an outflow port 4, a valve body 6, a valve core 7, a first spring 8, a guide sleeve 9, a valve cavity 10, a pressure relief channel 11, a valve block 12, a sleeve plug 13, a liquid outlet cavity 14, a longitudinal cavity 15, an upper end plate 16, a guide hole 17, a scale 18, a piston body 19, an indication rod 20, a pointer 21, a positioner 22, a sensor 23, a second spring 24, a first antifriction ring 25, a first sealing ring 26, a retainer ring 27, a second sealing ring 28, a third sealing ring 29, a second antifriction ring 30, a fourth sealing ring 31, an oil injection pipeline 32, an oil injection one-way valve 33 and an organic glass cover.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the nitrogen water hammer relief valve with the valve position indicating device comprises a relief valve 1, wherein the relief valve 1 comprises a valve body 4 with an inflow port 2 and an outflow port 3, a valve core 6, a first spring 7, a guide sleeve 8 and a valve cavity 9, the valve core 6 and the guide sleeve 8 are arranged in the valve cavity 9, the valve cavity 9 is communicated with a valve block 11 through a pressure relief passage 10, the first spring 7 is sleeved on the guide sleeve 8, one end of the first spring is propped against the valve core 6, the other end of the first spring is propped against a valve seat, a sleeve plug 12 is arranged at the front end of the guide sleeve 8, which is close to the outflow port 3, a longitudinal cavity 14 communicated with the valve cavity 9 is radially arranged on the valve body 4 between a liquid outlet cavity 13 and the valve cavity 9, an upper end plate 15 is fixedly arranged at the upper end of the longitudinal cavity 14, a guide hole; a piston body 18 which is matched with the longitudinal cavity 14 in a sliding and sealing mode is installed in the longitudinal cavity, hydraulic oil is filled in the cavity at the lower end of the piston body 18 and the front end of the valve core 6, an indicating rod 19 is fixedly connected to the center of the upper end of the piston body 18, the upper end of the indicating rod 19 penetrates through the guide hole 16 in a sliding mode and is connected with a pointer 20, a positioner 21 is installed at the top end of the indicating rod 19, a sensor 22 is fixedly installed on one side of the positioner 21, and the sensing surface is arranged towards the positioner 21; a second spring 23 is sleeved on the indicating rod 19 between the piston body 18 and the upper end plate 15.
In order to provide contact guidance for the guide sleeve 8 and prevent the phenomena of clamping stagnation and cold sweat, a first wear-reducing ring 24, a first sealing ring 25 and a retaining ring 26 are arranged between the guide sleeve 8 and the valve core 6; in order to ensure the sealing performance between the guide sleeve 8 and the valve body 4, a second sealing ring 27 is arranged between the guide sleeve 8 and the valve body 4; a third sealing ring 28 is arranged between the guide sleeve 8 and the sleeve plug 12; in order to provide a contact guide for the piston body 18 and to prevent seizure and cold sweat phenomena, a second friction reducing ring 29 and a fourth sealing ring 30 are provided between the piston body 18 and the valve body 4.
In order to facilitate the supplement of oil liquid into the hydraulic oil cavity, an oil filling pipeline 31 parallel to the longitudinal cavity 14 is further arranged in the valve body 4 on one side of the longitudinal cavity 14, one end of the oil filling pipeline 31 is connected to the lower end face of the upper end plate 15, the other end of the oil filling pipeline 31 is communicated with the cavity at the lower end of the piston body 18, and an oil filling check valve 32 is arranged on the oil filling pipeline 31 close to the upper end plate 15.
In order to prevent dust and dirt, an organic glass cover 33 which is used for sleeving the graduated scale 17, the positioner 21 and the sensor 22 inside is further arranged on the upper end face of the upper end plate 15.
The working principle is as follows: when the water hammer pressure of the inflow port 2 reaches or exceeds a set value, the force acting on the valve core 6 is larger than the sum of the nitrogen pressure and the spring force which are reacted on the valve core 6, and is enough to overcome the static friction force between the valve core 6 and the valve body 4, the valve core 6 moves towards the outflow port 3, the liquid in the inflow port 2 flows into a pressure relief cavity through a gap between the opened valve core 6 and the valve cavity 9, meanwhile, in the process that the valve core 6 moves towards the outflow port, the hydraulic oil in the cavity is pushed to extrude the piston body 18 to drive the indicating rod 19 to overcome the static friction force between the spring I7 and the piston body 18 and the valve body 4, the moving distance of the pointer 20 on the indicating rod 19 can be read on the scale 17, the opening degree and the position of the valve core 6 can be deduced through the operational relationship between the value of the pointer 20 and the valve core 6, and meanwhile, the positioner 21 and the, the functions of visual opening degree and remote monitoring of the main valve are realized; when the water hammer pressure of the inflow port 2 is reduced to be below a set value, the force acting on the valve core 6 is smaller than the sum of the nitrogen pressure and the spring force which are reacted on the valve core 6, and the static friction force between the valve core 6 and the valve body 4 is overcome, the valve core 6 is pushed to move towards the inflow port 2 until a sealing ring is pressed, meanwhile, in the process that the valve core 6 moves towards the inflow port 2, the hydraulic oil pressure is reduced, under the pressure action of a second spring 23, the piston body 18 is pushed to drive the indicating rod 19 to reset, and at the moment, the pressure release valve is closed; the device is convenient for relevant staff to know the operating condition of water hammer relief valve in time, has improved the safety in utilization of pipeline and equipment.
Claims (4)
1. A nitrogen type water hammer relief valve with a valve position indicating device comprises a relief valve (1), wherein the relief valve (1) comprises a valve body (4) with an inflow port (2) and an outflow port (3), a valve core (6), a spring I (7), a guide sleeve (8) and a valve cavity (9), the valve core (6) and the guide sleeve (8) are arranged in the valve cavity (9), the valve cavity (9) is communicated with a valve block (11) through a pressure relief channel (10), the spring I (7) is sleeved on the guide sleeve (8), one end of the spring I is propped against the valve core (6), the other end of the spring I is propped against a valve seat, a sleeve plug (12) is arranged at the front end of the guide sleeve (8) close to the outflow port (3), and is characterized in that a longitudinal cavity (14) communicated with the valve cavity (9) is radially arranged on the valve body (4) between the outflow cavity (13) and the valve cavity (9), an upper end plate (15) is fixedly arranged at the upper, a guide hole (16) is formed in the center of the upper end plate (15), and a graduated scale (17) is longitudinally arranged on one side of the upper end plate (15); a piston body (18) in sliding sealing fit with the longitudinal cavity (14) is arranged in the longitudinal cavity, hydraulic oil is filled in the cavity at the lower end of the piston body (18) and the front end of the valve core (6), an indicating rod (19) is fixedly connected to the center of the upper end of the piston body (18), the upper end of the indicating rod (19) penetrates through the guide hole (16) in a sliding mode and is connected with a pointer (20), a positioner (21) is arranged at the top end of the indicating rod (19), a sensor (22) is fixedly arranged on one side of the positioner (21), and the sensing surface faces the positioner (21); a second spring (23) is sleeved on the indicating rod (19) between the piston body (18) and the upper end plate (15).
2. The nitrogen type water hammer relief valve with the valve position indicating device is characterized in that a first antifriction ring (24), a first sealing ring (25) and a retaining ring (26) are arranged between the guide sleeve (8) and the valve core (6); a second sealing ring (27) is arranged between the guide sleeve (8) and the valve body (4); a third sealing ring (28) is arranged between the guide sleeve (8) and the sleeve plug (12); and a second antifriction ring (29) and a fourth sealing ring (30) are arranged between the piston body (18) and the valve body (4).
3. The nitrogen type water hammer relief valve with the valve position indicating device according to claim 1 or 2 is characterized in that an oil filling pipeline (31) parallel to the longitudinal cavity (14) is further arranged in the valve body (4) on one side of the longitudinal cavity (14), one end of the oil filling pipeline (31) is connected to the lower end face of the upper end plate (15), the other end of the oil filling pipeline is communicated with the cavity at the lower end of the piston body (18), and an oil filling check valve (32) is arranged on the oil filling pipeline (31) close to the upper end plate (15).
4. The nitrogen type water hammer relief valve with the valve position indicating device according to claim 3 is characterized in that an organic glass cover (33) which is used for sleeving the graduated scale (17), the positioner (21) and the sensor (22) inside is further arranged on the upper end face of the upper end plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532168.1U CN210687134U (en) | 2019-09-16 | 2019-09-16 | Nitrogen gas formula water hammer relief valve with valve position indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532168.1U CN210687134U (en) | 2019-09-16 | 2019-09-16 | Nitrogen gas formula water hammer relief valve with valve position indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210687134U true CN210687134U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921532168.1U Expired - Fee Related CN210687134U (en) | 2019-09-16 | 2019-09-16 | Nitrogen gas formula water hammer relief valve with valve position indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210687134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090848A (en) * | 2021-04-28 | 2021-07-09 | 博纳斯威阀门股份有限公司 | Water hammer discharge valve |
| CN113586967A (en) * | 2021-08-20 | 2021-11-02 | 江苏诚扬新材料科技有限公司 | Overpressure warning type plastic pipe for water delivery |
-
2019
- 2019-09-16 CN CN201921532168.1U patent/CN210687134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090848A (en) * | 2021-04-28 | 2021-07-09 | 博纳斯威阀门股份有限公司 | Water hammer discharge valve |
| CN113586967A (en) * | 2021-08-20 | 2021-11-02 | 江苏诚扬新材料科技有限公司 | Overpressure warning type plastic pipe for water delivery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20210916 |