CN210890255U - Backpressure surge damping valve - Google Patents
Backpressure surge damping valve Download PDFInfo
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- CN210890255U CN210890255U CN201921891945.1U CN201921891945U CN210890255U CN 210890255 U CN210890255 U CN 210890255U CN 201921891945 U CN201921891945 U CN 201921891945U CN 210890255 U CN210890255 U CN 210890255U
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Abstract
The utility model discloses a backpressure surge damping valve, backpressure surge damping valve contains first flange, valve casing, valve barrel, piston, spring, guide arm, valve gap, steel pipe, second flange, adjusting nut and sealing washer. The medium inlet end and the medium outlet end of the back pressure stabilizing valve are vertically designed, and the double-layer pressure relief holes which are mutually embedded and arranged are formed in the valve sleeve, so that the pressure relief capacity of the back pressure stabilizing valve is fully improved, and the pressure of a generator set pipeline is stabilized. The utility model is suitable for a generating set pipe-line system of the perpendicular design of inlet line and outlet line still can the quick pressure release under the condition that there is pressure differential, exit end backpressure in pipeline entry end pressure and pipeline exit end pressure, keeps pipeline pressure stable.
Description
Technical Field
The utility model relates to the field of mechanical equipment, concretely relates to a backpressure surge damping valve for generating set pipe-line system.
Background
The pipeline system of the generator set is an important part of the generator set, the structure composition is very complex, and in practical application, the pressure of the inlet end of the pipeline and the pressure of the outlet end of the pipeline have pressure difference, and the outlet end of the pipeline has back pressure, so that the pipeline is difficult to relieve pressure. And a valve is arranged between the pipeline inlet end and the pipeline outlet end to adjust the pressure, so that the pressure difference between the two ends of the pipeline is reduced, and the pressure of the pipeline is kept stable within a working pressure range. However, the traditional valve is provided with a single-layer pressure relief hole, the pressure relief capacity is poor, the flow at the outlet end of the pipeline cannot be quickly adjusted under the condition that the back pressure exists at the outlet end of the pipeline, the pressure difference between the pressure at the inlet end of the pipeline and the pressure at the outlet end of the pipeline is reduced or eliminated, the pipeline pressure is unstable, the normal work of a generator is influenced, and even the safety problem is caused.
SUMMERY OF THE UTILITY MODEL
In order to make generating set pipeline pressure stable in the operating pressure within range, the utility model provides a backpressure surge damping valve.
The utility model provides a backpressure surge damping valve contains: the valve comprises a first flange, a valve shell, a valve sleeve, a piston, a spring, a guide rod, a steel pipe and a second flange;
a medium inlet is formed in the first flange, and one end of the valve shell is welded on the first flange by taking the medium inlet as a center;
the valve sleeve is arranged in the valve shell;
a piston is arranged in one end of the valve sleeve close to the medium inlet and clings to the inner wall of the valve sleeve, and one end of the spring is clamped in the piston;
one end of the guide rod, which is close to the medium inlet, is provided with a notch and is arranged close to the inner wall of the valve sleeve, and the other end of the spring is clamped in the notch;
the side wall of the valve shell is provided with an interface which is connected with one end of the steel pipe in a welding way;
a medium outlet is formed in the second flange and is connected with the other end of the steel pipe in a welding mode;
and when the pressure at the medium inlet reaches or exceeds the valve tripping pressure, the piston is jacked up, the spring is compressed, and the medium flows into the valve sleeve and flows to the medium outlet through the pressure relief hole.
Preferably, the inner wall of the valve casing, which is far away from the medium inlet, of the valve casing is thickened and is tightly and fixedly arranged on the valve casing inside; the valve casing forms the clearance between valve casing inner wall and the valve barrel of being close to the medium import, gets into the clearance between valve casing and the valve barrel earlier from the medium that the pressure release hole flows out the gathering reaches or surpasss the interface of seting on the valve casing in the clearance, gets into the steel pipe and flows to the export.
Preferably, the backpressure regulator valve further comprises a valve cover, and the valve cover is connected with one end, far away from the medium inlet, of the guide rod and is fixedly connected with the valve shell.
Preferably, the valve cover comprises a valve cover surface and a valve cover body, a threaded hole is formed in the valve cover surface, internal threads are arranged in the threaded hole, external threads are arranged on one end, far away from the medium inlet, of the guide rod and are in spiral connection with the guide rod, and the pressure of the spring is adjusted by screwing the guide rod in and out of the valve cover; the internal wall of valve gap is equipped with the internal thread, passes the one end that the medium import was kept away from to the guide arm, keeps away from the external screw thread that one of medium import was served and is set up through the valve casing, and is fixed with the valve casing spiral.
Preferably, the backpressure regulator valve further comprises an adjusting nut, and the adjusting nut is in threaded connection with the guide rod on the valve cover surface so as to fasten the guide rod.
Preferably, the pressure relief holes in each layer are arranged along the circumferential direction of the valve sleeve, and the pressure relief holes in the two layers are mutually embedded and arranged, so that the pressure relief capacity of the back pressure stabilizing valve is improved.
Preferably, the back pressure stabilizing valve further comprises a plurality of sealing rings, one end of the guide rod, which is close to the medium inlet, is provided with a sealing ring notch on the wall surface which is tightly attached to the valve sleeve so as to install the sealing ring; and a sealing ring notch is formed in the wall surface of the valve sleeve close to the valve shell for installing a sealing ring at one end of the valve sleeve far away from the medium inlet.
Preferably, threaded holes are formed in the first flange and the second flange, the first flange is connected with the generator set inlet flange through spiral fixing, and the second flange is connected with the generator set outlet flange.
Preferably, a medium inlet and a medium outlet in the backpressure regulator valve are vertically designed, and the backpressure regulator valve is suitable for a generator set with a medium inlet pipeline and a medium outlet pipeline which are vertically arranged.
The utility model provides a back pressure stabilizing valve, through to the valve barrel pressure release hole bilayer, inlay and insert the range design each other, reduced the flow resistance, increase the flow and the velocity of flow of exit end medium, reduce or even eliminate pipeline entry end pressure and pipeline exit end pressure and have the pressure differential, stabilize pipeline pressure; through with the perpendicular design of medium import and medium export, make the utility model is suitable for a generating set that medium import pipeline and medium export pipeline set up perpendicularly.
Drawings
FIG. 1 is a schematic half-section view of a back pressure regulator valve;
fig. 2 is a schematic view of a valve housing with a double-layer pressure relief hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific embodiments.
In the prior art, the valve pressure relief hole is designed in a single layer mode, pressure difference exists between the pipeline inlet end and the pipeline outlet end of a generator set pipeline system, and the pipeline outlet end is difficult to quickly relieve pressure and maintain stable pipeline pressure under the condition that back pressure exists.
The utility model provides a backpressure surge damping valve, as shown in figure 1, backpressure surge damping valve contains: a first flange 1, a valve housing 2, a valve housing 3, a piston 4, a spring 5, a guide rod 6, a steel pipe 8 and a second flange 9.
In this context, the side of the first flange 1 is the medium inlet end a, and the side of the second flange 2 is the medium outlet end B. Offer the medium import on the first flange 1 to the medium import is the center, with the welding of valve casing 2 one end on first flange 1, the valve casing 2 other end is equipped with the external screw thread. Valve housing 2 is inside to be set up valve barrel 3, and valve barrel 3 is close to one of medium import and serves and has seted up double-deck pressure release hole 12, and each pressure release hole 12 in every layer is arranged along valve barrel 3's circumferencial direction and is set up, inlays each other between two-layer pressure release hole and inserts the range, and valve barrel 3 keeps away from one of medium import and serves and has seted up one or more sealing washer notch 13, has still seted up single pressure release hole 120 simultaneously, as shown in fig. 2.
At the medium inlet end A, the piston 4 is tightly attached to the inner wall of the valve sleeve 3, and one end of the spring 5 is clamped in the piston 4. The end of the guide rod 6 far away from the medium inlet is provided with an external thread, the end close to the medium inlet is arranged close to the inner wall of the valve sleeve 3, the end is provided with a notch, and the other end of the spring 5 is clamped in the notch.
The back pressure stabilizing valve further comprises a valve cover 7, the valve cover 7 further comprises a valve cover surface 70 and a valve cover body 71, a threaded hole is formed in the valve cover surface 70, internal threads are formed in the threaded hole and spirally connected with external threads of the guide rod 6, and the pressure of the spring 5 is adjusted by screwing the guide rod 6 in and out of the valve cover 7, so that the valve jump pressure is within the pressure range of the operation of an inlet pipeline of the generator set; when the guide rod 6 is screwed into the valve cover 7, the spring 5 is subjected to the pressure action of the guide rod 6 and the elastic force is increased, the jump-up pressure of the back pressure stabilizing valve is increased, and the medium inlet end A can jack up the piston 4 only by the correspondingly increased pressure; on the contrary, when the guide rod 6 is screwed out of the valve cover 7, the tripping pressure of the back pressure stabilizing valve is reduced, and the medium inlet end A can jack the piston 4 by the correspondingly reduced pressure. The inner wall of the valve cover body 71 is provided with internal threads, and the internal threads penetrate through one end, far away from the medium inlet, of the guide rod 6 and are spirally fixed with the external threads of the valve shell 2.
The backpressure regulator valve further comprises an adjusting nut 10 which is arranged on the valve cover surface 70, the adjusting nut 10 is in threaded connection with the guide rod 6 and used for fastening the guide rod 6 and preventing the guide rod 6 from sliding in a threaded hole of the valve cover surface 70 due to the acting force of the spring 5 when the guide rod 6 is screwed in and out of the pressure of the adjusting spring 5 on the valve cover 7.
The inner wall of the valve shell 2, which is far away from the medium inlet, is thickened and is tightly attached to and fixed with a valve sleeve 3 arranged in the valve shell 2; while the inner wall of the valve housing near the medium inlet is not thickened so that a gap is formed with the valve sleeve 3.
An interface is arranged on the side wall of the valve shell 2 and is welded with one end of the steel pipe 8, so that the gap is communicated with the steel pipe 8; and a medium outlet is formed in the second flange 9 and is connected with the other end of the steel pipe 8 in a welding manner, so that the communication from the gap to the medium outlet is realized.
Threaded holes 14 are formed in the first flange 1 and the second flange 9, in a generator set pipeline system, the first flange 1 is connected with a generator set inlet flange through spiral fixation of the threaded holes 14, the second flange 9 is connected with a generator set outlet flange, and the backpressure pressure stabilizing valve is arranged between the inlet pipeline and the inlet pipeline.
When the medium pressure of the inlet pipeline of the generator set exceeds the working pressure range, the pressure at the medium inlet end A of the back pressure stabilizing valve communicated with the inlet pipeline reaches the valve jump pressure, the piston 4 is jacked up, the spring 5 is compressed, the medium rushes into the valve sleeve 3, enters a gap formed by the valve sleeve 2 and the valve sleeve 3 through a double-layer pressure relief hole 12 formed in the valve sleeve 3, the medium gathered in the gap reaches a port formed in the valve sleeve 2, then flows to the medium outlet end B through a steel pipe 8 communicated with the gap, and finally flows into the outlet pipeline of the generator set, so that the medium pressure of the inlet pipeline of the generator set is released, and the pressure of the medium is stabilized within the working pressure range.
In the prior art, a single-layer pressure relief hole is adopted in a valve, the pressure relief capacity is not strong, but if a plurality of layers of pressure relief holes are formed in a valve sleeve, the piston pressure is high due to the fact that back pressure, medium backflow and the like exist at an outlet end, and then the phenomenon that the valve is too high in take-off pressure and cannot be opened occurs. The utility model discloses a realize the quick pressure release of valve, set up the double-deck pressure release hole 12 in the valve pocket 3 one end near the medium import, when the piston 4 was reached or exceeded the last layer pressure release hole by the jack-up height, two-layer pressure release hole discharges simultaneously, can more quick pressure release; meanwhile, the two layers of pressure relief holes are mutually embedded and arranged, so that the height of the upper layer of pressure relief hole is reduced as much as possible, the piston 4 can be relieved through the upper layer of pressure relief hole when being jacked up to a lower height, and the pressure relief capacity of the back pressure stabilizing valve is fully improved.
And a single pressure relief hole 120 is formed in one end, far away from the medium inlet, of the valve sleeve 3 and at a position corresponding to the interface of the steel pipe 8, and is used for discharging the medium in the piston 4 to the outlet end B when the valve is opened, and simultaneously guiding back pressure of the outlet end B to the piston 4 through the pressure relief hole 120, and prompting the valve to be closed after pressure relief of an inlet pipeline of the generator set is completed.
Backpressure surge damping valve still contains sealing washer 11. One end of the guide rod 6, which is close to the medium inlet, is provided with one or more sealing ring notches 13 on the wall surface of the guide rod, which is close to the valve sleeve 3, so that a sealing ring 11 is installed, and the medium in the valve sleeve 3 is prevented from leaking outwards; meanwhile, one end of the valve sleeve 3, which is far away from the medium inlet, is provided with one or more sealing ring notches 13 on the wall surface tightly attached to the valve casing 2 for installing the sealing ring 11, so that the medium in the valve casing 2 is prevented from leaking outwards.
The utility model provides a backpressure regulator valve, the medium inlet end A and the medium outlet end B are mutually vertical, and the backpressure regulator valve is suitable for a generator set with a medium inlet pipeline and a medium outlet pipeline which are vertically arranged; the back pressure stabilizing valve is provided with double layers of pressure relief holes which are mutually embedded and arranged, so that the pressure relief capacity of the back pressure stabilizing valve is fully improved, the flow and the flow speed of the outlet end are increased, and the medium pressure of an inlet pipeline of the generator set is kept stable within the working pressure range.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (9)
1. A back pressure regulator valve, comprising: the valve comprises a first flange, a valve shell, a valve sleeve, a piston, a spring, a guide rod, a steel pipe and a second flange;
a medium inlet is formed in the first flange, and one end of the valve shell is welded on the first flange by taking the medium inlet as a center;
the valve sleeve is arranged in the valve shell;
a piston is arranged in one end of the valve sleeve close to the medium inlet and clings to the inner wall of the valve sleeve, and one end of the spring is clamped in the piston;
one end of the guide rod, which is close to the medium inlet, is provided with a notch and is arranged close to the inner wall of the valve sleeve, and the other end of the spring is clamped in the notch;
the side wall of the valve shell is provided with an interface which is connected with one end of the steel pipe in a welding way;
a medium outlet is formed in the second flange and is connected with the other end of the steel pipe in a welding mode;
and when the pressure at the medium inlet reaches or exceeds the valve tripping pressure, the piston is jacked up, the spring is compressed, and the medium flows into the valve sleeve and flows to the medium outlet through the pressure relief hole.
2. The back pressure stabilizing valve as claimed in claim 1, wherein the valve casing has thickened inner wall away from the medium inlet and clinging to and fixing the valve sleeve inside; the valve casing forms the clearance between valve casing inner wall and the valve barrel of being close to the medium import, gets into the clearance between valve casing and the valve barrel earlier from the medium that the pressure release hole flows out the gathering reaches or surpasss the interface of seting on the valve casing in the clearance, gets into the steel pipe and flows to the export.
3. The back pressure stabilizing valve as claimed in claim 1, further comprising a valve cap connected to an end of the guide rod remote from the media inlet and secured to the valve housing.
4. The back pressure stabilizing valve as claimed in claim 3, wherein the valve cap includes a valve cap surface and a valve cap body, the valve cap surface is provided with a threaded hole in which an internal thread is arranged, the threaded hole is connected with the guide rod in a screw way through an external thread arranged on one end of the guide rod far away from the medium inlet, and the threaded hole is screwed in and out of the guide rod to adjust the pressure of the spring; the internal wall of valve gap is equipped with the internal thread, passes the one end that the medium import was kept away from to the guide arm, keeps away from the external screw thread that one of medium import was served and is set up through the valve casing, and is fixed with the valve casing spiral.
5. The back pressure stabilizing valve according to claim 1, further comprising an adjusting nut, wherein the adjusting nut is screwed with the guide rod on the valve cover surface to fasten the guide rod.
6. The back pressure stabilizing valve as claimed in claim 1, wherein the pressure relief holes in each layer are arranged along the circumferential direction of the valve sleeve, and the pressure relief holes in two layers are mutually inserted to improve the pressure relief capacity of the back pressure stabilizing valve.
7. The back pressure stabilizing valve as claimed in claim 1, further comprising a plurality of sealing rings, wherein one end of the guide rod close to the medium inlet is provided with a sealing ring notch on the wall surface close to the valve sleeve for installing the sealing ring; and a sealing ring notch is formed in the wall surface of the valve sleeve close to the valve shell for installing a sealing ring at one end of the valve sleeve far away from the medium inlet.
8. The back pressure stabilizing valve as claimed in claim 1, wherein the first flange and the second flange are provided with threaded holes, the first flange is connected with the generator set inlet flange through screw fixation, and the second flange is connected with the generator set outlet flange.
9. The back pressure stabilizing valve as claimed in claim 1, wherein the back pressure stabilizing valve has a vertical medium inlet and a vertical medium outlet, and is suitable for a generator set with a vertical medium inlet pipeline and a vertical medium outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891945.1U CN210890255U (en) | 2019-11-05 | 2019-11-05 | Backpressure surge damping valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891945.1U CN210890255U (en) | 2019-11-05 | 2019-11-05 | Backpressure surge damping valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890255U true CN210890255U (en) | 2020-06-30 |
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ID=71336748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921891945.1U Active CN210890255U (en) | 2019-11-05 | 2019-11-05 | Backpressure surge damping valve |
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| Country | Link |
|---|---|
| CN (1) | CN210890255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294569A (en) * | 2021-06-08 | 2021-08-24 | 江苏嘉胜石油科技有限公司 | Micro-opening safety valve with handle threaded connection |
| CN113417861A (en) * | 2021-06-23 | 2021-09-21 | 蒋晓红 | Water pump with self-adaptation pressure release mechanism |
-
2019
- 2019-11-05 CN CN201921891945.1U patent/CN210890255U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294569A (en) * | 2021-06-08 | 2021-08-24 | 江苏嘉胜石油科技有限公司 | Micro-opening safety valve with handle threaded connection |
| CN113417861A (en) * | 2021-06-23 | 2021-09-21 | 蒋晓红 | Water pump with self-adaptation pressure release mechanism |
| CN113417861B (en) * | 2021-06-23 | 2024-01-02 | 蒋晓红 | Water pump with self-adaptive pressure relief mechanism |
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