CN213018045U - Device for observing liquid behind valve - Google Patents
Device for observing liquid behind valve Download PDFInfo
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- CN213018045U CN213018045U CN202021350279.3U CN202021350279U CN213018045U CN 213018045 U CN213018045 U CN 213018045U CN 202021350279 U CN202021350279 U CN 202021350279U CN 213018045 U CN213018045 U CN 213018045U
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- valve
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- pipe body
- water outlet
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Abstract
The utility model discloses a device for being directed at behind valve liquid observation, including the body, the end of intaking of body is fixed with first joint support frame, and the play water end of body is fixed with second joint support frame, is provided with a plurality of connecting plates along the axial on the outer wall of body, and the connecting plate is fixed mutually with first joint support frame, second joint support frame, body, and the body is transparent material, and the length of body and the internal diameter ratio of body are 1 ~ 2: 1. The device can visually observe the flow state conditions inside the valve and at the position of a connected pipeline, including the conditions of fluid state, water mist, water bubbles and energy dissipation when the valve is started and stopped, and meanwhile, a plurality of small holes can be formed in the pipe body to insert the sensor for detecting the relevant liquid pressure parameters. Compared with steel materials, organic glass and plastic have certain advantages in the aspects of thickness, easy-to-open property and sealing, and antirust paint does not need to be coated.
Description
Technical Field
The utility model belongs to the technical field of valve model test device, a device for being directed at behind the valve liquid observation is related to.
Background
The flow regulating and pressure regulating valve is widely applied to pipelines needing pressure reduction or pressure stabilization, water plant water inlet ponds, reservoir flood discharge and flood control and other scenes. In recent years, with the massive construction of long-distance water transmission pipeline engineering, the large-diameter flow regulating and pressure regulating valve is increasingly used, and although a mature piston valve design standard exists abroad, the design standard of the flow regulating and pressure regulating valve does not exist, so that the characteristics of the large-diameter flow regulating and pressure regulating valve, such as flow, energy dissipation, cavitation, vibration and the like, need to be inspected through modes of simulation, model test and the like. Cavitation may cause damage to the valve body itself and hydraulic structures, severe over-standard noise, insufficient flow characteristics, and the like, and thus special attention is required in valve simulation or testing. The large-diameter valve is generally subjected to a scale reduction test, because the valve body and the upstream and downstream pipelines are made of opaque materials, the flow state condition in the valve and the flow state condition of the connected pipelines cannot be directly observed, cavitation erosion can be judged only by squeaking, vibrating, measuring the pressure of the valve wall and the like, the existing test means cannot completely discover whether slight cavitation erosion occurs in the valve, under the condition, the cavitation erosion area of the valve is very small, the phenomena of obvious noise and vibration are avoided, the pressure measurement in the valve is not obviously fluctuated, and the possibility of misjudgment and no cavitation erosion occurs is possibly caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for being directed at liquid observation behind the valve has solved the problem that can not the direct observation valve in and take over the pipeline flow state condition that exists among the prior art.
The utility model discloses the technical scheme who adopts is, a device for being directed at behind valve liquid observation, including the body, the end of intaking of body is fixed with first joint support frame, and the play water end of body is fixed with second joint support frame, is provided with a plurality of connecting plates along the axial on the outer wall of body, and the connecting plate is fixed mutually with first joint support frame, second joint support frame, body, and the body is transparent material, and the length of body is 1 ~ 2: 1 with the internal diameter ratio of body.
The utility model discloses a characteristics still lie in:
the inner diameter of the water inlet end of the pipe body is equal to the inner diameter of the water outlet of the valve body, and the inner diameter of the water outlet end of the pipe body is equal to the inner diameter of the lower pipeline.
The first connecting support frame and the second connecting support frame are flange plates.
The outer diameter of the flange plate at the water inlet end of the pipe body is equal to the outer diameter of the flange plate at the water outlet end of the valve body, and the inner diameter of the flange plate at the water inlet end of the pipe body is equal to the outer diameter of the water inlet end of the pipe body; the outer diameter of the flange plate at the water outlet end of the pipe body is equal to the outer diameter of the flange plate of the lower section of the pipe, and the inner diameter of the flange plate at the water outlet end of the pipe body is equal to the outer diameter of the water outlet end of the pipe body.
The tube body is a colorless transparent pressure-resistant organic glass tube or a transparent pressure-resistant plastic tube.
The pipe body is provided with a small hole.
The connecting plates are uniformly arranged on the outer wall of the pipe body.
The first connecting support frame and the pipe body are fixedly sealed through glue, and the second connecting support frame and the pipe body are fixedly sealed through glue.
The first connecting support frame and the second connecting support frame are made of steel or iron materials, and the connecting plate is welded and fixed with the first connecting support frame and the second connecting support frame.
The utility model discloses a device can observe the valve inside directly perceivedly and the pipeline department flow state condition that connects, including opening fluid state, water smoke, bubble and the energy dissipation condition when opening and stop the valve, can set up some apertures simultaneously and insert the sensor and be used for detecting liquid relevant pressure parameter on the body. Compared with steel materials, organic glass and plastic have certain advantages in the aspects of thickness, easy-to-open property and sealing, and antirust paint does not need to be coated.
Drawings
FIG. 1 is a schematic diagram of a device for post-valve fluid observation according to the present invention;
fig. 2 is an installation schematic diagram of a device for observing liquid behind a valve according to the present invention.
In the figure, 1, a pipe body, 2, a first connecting support frame, 3, a second connecting support frame, 4, a connecting plate, 5, a valve body, 6, a lower pipeline, 7, a flange plate at the water outlet end of the valve body, 8, a flange plate of the lower pipeline and 9, small holes are formed.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model relates to a device for observing liquid after a valve, which comprises a pipe body 1, wherein the water inlet end of the pipe body 1 is fixedly sealed with a first connecting support frame 2 through glue, and the water outlet end of the pipe body 1 is fixedly sealed with a second connecting support frame 3 through glue; the first connecting support frame 2 and the second connecting support frame 3 are flanges, and the first connecting support frame 2 and the second connecting support frame 3 are made of metal materials. Be provided with 4 connecting plates 4 along the axial on the outer wall of body 1, connecting plates 4 are at the outer wall align to grid of body 1, and connecting plates 4 and first joint support frame 2, second joint support frame 3 welded fastening. The tube body 1 is made of transparent materials and can be a colorless transparent pressure-resistant organic glass tube or a transparent pressure-resistant plastic tube, and the ratio of the length of the tube body 1 to the inner diameter of the tube body 1 is 2: 1.
In the device, the inner diameter of the water inlet end of the pipe body 1 is equal to the inner diameter of the water outlet of the valve body 5, and the inner diameter of the water outlet end of the pipe body 1 is equal to the inner diameter of the lower pipeline 6. The outer diameter of the flange plate at the water inlet end of the pipe body 1 is equal to the outer diameter of the flange plate 7 at the water outlet end of the valve body, and the inner diameter of the flange plate at the water inlet end of the pipe body 1 is equal to the outer diameter of the water inlet end of the pipe body; the outer diameter of the flange plate at the water outlet end of the pipe body 1 is equal to the outer diameter of 8 of the flange plate of the lower section of the pipe, and the inner diameter of the flange plate at the water outlet end of the pipe body 1 is equal to the outer diameter of the water outlet end of the pipe body 1. Therefore, the connection of all parts is tight, the transition is smooth, the change of the water flow form caused by gaps or concave-convex is reduced, and the using effect is improved.
As shown in figure 2, when the device is used, the flange plate at the water inlet end of the pipe body 1 is connected with the flange plate 7 at the water outlet end of the valve body through bolts, the flange plate at the water outlet end of the pipe body 1 is connected with the flange plate 8 of the lower pipeline through bolts, then subsequent simulation detection operation is carried out, and the condition of liquid behind the valve can be observed through the pipe body.
The pipe body 1 can be a colorless transparent pressure-resistant organic glass pipe or a transparent pressure-resistant plastic pipe and can bear the maximum pressure of liquid when the valve works. The material is hard in texture, does not deform or slightly deforms, and has good transparency, so that a tester can observe the material conveniently.
The pipe body 1 is provided with a small hole 9, and an anti-leakage part is arranged in the small hole 9. A sensor required for the insertion test, for example, a pressure sensor, can detect the lateral pressure of the fluid against the pipe body 1, and prevent the liquid from leaking through the leakage preventing member. The leakage-proof part can be made of pressure-resistant waterproof material and is fixed and sealed with the periphery of the small hole through sealant.
The device can visually observe the flow state conditions inside the valve and at the position of the connected pipeline, including the conditions of fluid state, water mist, water bubbles and energy dissipation when the valve is started and stopped, and can completely discover whether slight cavitation erosion occurs in the valve. Under the condition that the opening of the valve is small, even if the cavitation erosion area is small, no obvious noise and vibration phenomena exist, the internal pressure measurement of the valve can be observed without obvious fluctuation, and the misjudgment of the cavitation erosion is avoided. Meanwhile, the pipe body is provided with a plurality of small holes, and related pressure parameters of liquid state can be detected by inserting a sensor. Compared with steel materials, organic glass and plastic have certain advantages in the aspects of thickness, easy-to-open property and sealing, and antirust paint does not need to be coated.
Claims (9)
1. The utility model provides a device for being directed at liquid observation behind valve, its characterized in that, includes body (1), the end of intaking of body (1) is fixed with first joint support frame (2), the play water end of body (1) is fixed with second joint support frame (3), be provided with a plurality of connecting plates (4) along the axial on the outer wall of body (1), connecting plate (4) are fixed mutually with first joint support frame (2), second joint support frame (3), body (1) is transparent material, the length of body (1) and the internal diameter ratio of body (1) are 1 ~ 2: 1.
2. A device for observing liquid after a valve according to claim 1, characterized in that the inner diameter of the water inlet end of the tube body (1) is equal to the inner diameter of the water outlet of the valve body (5), and the inner diameter of the water outlet end of the tube body (1) is equal to the inner diameter of the lower pipeline (6).
3. A device for post-valve fluid observation according to claim 1, characterized in that the first (2) and second (3) connection supports are flanges.
4. A device for observing liquid after a valve according to claim 3, characterized in that the outer diameter of the flange at the water inlet end of the pipe body (1) is equal to the outer diameter of the flange (7) at the water outlet end of the valve body, and the inner diameter of the flange at the water inlet end of the pipe body (1) is equal to the outer diameter of the flange at the water inlet end of the pipe body (1); the outer diameter of the flange plate at the water outlet end of the pipe body (1) is equal to the outer diameter of the flange plate (8) of the lower pipeline, and the inner diameter of the flange plate at the water outlet end of the pipe body (1) is equal to the outer diameter of the water outlet end of the pipe body (1).
5. A device for post-valve fluid visualization according to claim 1, characterized in that the tube body (1) is a colorless transparent pressure-resistant plexiglas tube or a transparent pressure-resistant plastic tube.
6. A device for post-valve fluid observation according to claim 1, characterized in that the tube body (1) is provided with a small hole (9).
7. A device for post-valve fluid observation according to claim 1, characterized in that the connection plates (4) are arranged uniformly on the outer wall of the tube body (1).
8. A device for post-valve fluid observation according to claim 1, characterized in that the first connection support (2) is sealed fixedly with the tube body (1) by glue, and the second connection support (3) is sealed fixedly with the tube body (1) by glue.
9. A device for observing liquid after a valve according to claim 1, characterized in that the first connecting support frame (2) and the second connecting support frame (3) are made of steel or ferrous material, and the connecting plate (4) is welded and fixed with the first connecting support frame (2) and the second connecting support frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350279.3U CN213018045U (en) | 2020-07-10 | 2020-07-10 | Device for observing liquid behind valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350279.3U CN213018045U (en) | 2020-07-10 | 2020-07-10 | Device for observing liquid behind valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213018045U true CN213018045U (en) | 2021-04-20 |
Family
ID=75501991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021350279.3U Active CN213018045U (en) | 2020-07-10 | 2020-07-10 | Device for observing liquid behind valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213018045U (en) |
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2020
- 2020-07-10 CN CN202021350279.3U patent/CN213018045U/en active Active
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