CN210424148U - Pipeline pressure relief orifice plate for fire control - Google Patents
Pipeline pressure relief orifice plate for fire control Download PDFInfo
- Publication number
- CN210424148U CN210424148U CN201921357606.5U CN201921357606U CN210424148U CN 210424148 U CN210424148 U CN 210424148U CN 201921357606 U CN201921357606 U CN 201921357606U CN 210424148 U CN210424148 U CN 210424148U
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- CN
- China
- Prior art keywords
- orifice plate
- throttling
- pressure relief
- pipeline pressure
- ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pipeline pressure relief orifice plate for fire control, including the throttle ring flange, the both ends face of throttle ring flange all is provided with a plurality of first annular grooves that stop leaking, the center of throttle ring flange is provided with the mounting hole, the mounting hole is connected with the throttle head through threaded connection, the center of throttle head is provided with the orifice. The utility model discloses simple structure, simple to operate just can avoid whole change whole decompression orifice plate through changing the choke head, great reduction the maintenance cost of fire-fighting pipeline.
Description
Technical Field
The utility model relates to a fire-fighting equipment field especially relates to a pipeline pressure relief orifice plate for fire control.
Background
The pressure reducing orifice is a pressure reducing orifice that reduces the dynamic pressure (without the static pressure) of the liquid, creating a head pressure drop at the pressure reducing orifice due to local drag losses as the flowing water passes through the pressure reducing orifice. At present, because the number of layers of high-rise buildings is large, hydrostatic pressure born by high-rise buildings and low-rise buildings is different. The water flow pressure of the lower layer is much larger than that of the upper layer when water is discharged. When a fire disaster is suppressed, the low-layer fire hose is often burst, and the pressure reducing plate has a pressure reducing function on the dynamic pressure of water flow. When flowing water passes through the pressure reducing orifice plate, pressure drop is generated at the pressure reducing orifice plate due to local resistance loss, so that the requirements of outlet pressure and flow of the fire hydrant are met. The pressure reducing orifice plate commonly used at present is generally made by stainless steel plate punching press, because the orifice often receives the washing of pipeline rivers to appear the crack very easily, need change whole pressure reducing orifice plate when leading to later stage maintenance, brings very big cost pressure for the maintenance of fire-fighting pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pipeline pressure reducing orifice plate for fire control solves the pressure reducing orifice plate and generally is the corrosion resistant plate punching press and makes, because the orifice often receives washing away of pipeline rivers to appear the crack very easily, need change the problem of whole pressure reducing orifice plate when leading to the later stage maintenance.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a pipeline pressure relief orifice plate for fire control, including the throttle ring flange, the both ends face of throttle ring flange all is provided with a plurality of first annular grooves that stop checking for diarrhea, the center of throttle ring flange is provided with the mounting hole, the mounting hole is connected with the throttle head through threaded connection, the center of throttle head is provided with the orifice.
Furthermore, the water retaining side of the throttling flange plate is fixedly connected with an anti-diarrhea ring, and a plurality of second annular anti-diarrhea grooves are formed in the circumferential side wall of the anti-diarrhea ring.
Furthermore, the inner ring of the water inlet end of the antidiarrheal ring is provided with a chamfer.
Furthermore, the throttling hole is in a diffusion conical shape according to the water flow direction.
Further, a plurality of spiral grooves are provided in the orifice hole.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses simple structure, simple to operate just can avoid whole change whole decompression orifice plate through changing the choke head, great reduction the maintenance cost of fire-fighting pipeline.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front sectional view of the fire fighting pipeline pressure reducing orifice plate of the present invention;
FIG. 2 is a left side view of the fire fighting pipeline pressure reducing orifice plate of the present invention;
FIG. 3 is a right side view of the fire fighting pipeline pressure relief orifice plate of the present invention;
fig. 4 is a cross-sectional view of the throttling flange of the present invention;
fig. 5 is an installation and use diagram of the pipeline pressure reducing orifice plate for fire fighting.
Description of reference numerals: 1. a throttling flange plate; 101. a first annular anti-diarrheal trough; 102. mounting holes; 2. a throttle head; 201. an orifice; 3. antidiarrheal ring; 301. a second annular anti-diarrheal groove; 4. a helical groove; 5. a water pipeline; 6. a gasket seal.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 4, the embodiment discloses a fire-fighting pipeline pressure reducing orifice plate, which includes a throttling flange plate 1, wherein both end surfaces of the throttling flange plate 1 are provided with a plurality of first annular check grooves 101, a sealing ring can be placed in the first annular check grooves 101, a mounting hole 102 is formed in the center of the throttling flange plate 1, the mounting hole 102 is connected with a throttling head 2 through a threaded connection, a throttling hole 201 is formed in the center of the throttling head 2, and the whole pressure reducing orifice plate can be prevented from being integrally replaced by replacing the throttling head 2. In order to reduce the pressure on the water outlet side of the throttle head 2 in time, the throttle opening 201 is in the form of a diverging cone in the direction of the water flow in the present exemplary embodiment.
Because the water pressure of the water retaining side of the pressure reducing pore plate is high, in order to improve the sealing performance of the pressure reducing pore plate, the water retaining side of the throttling flange plate 1 is welded with the anti-diarrhea ring 3, a plurality of second annular anti-diarrhea grooves 301 are arranged on the circumferential side wall of the anti-diarrhea ring 3, sealing rings can be sleeved in the second annular anti-diarrhea grooves 301, and the outer diameter of the anti-diarrhea ring 3 is matched with the inner diameter of a water pipeline. In order to reduce the pressure at the water inlet end of the antidiarrheal ring 3, the inner ring of the water inlet end of the antidiarrheal ring 3 is provided with a chamfer.
In order to prevent dirt from adhering to the orifice 201, a plurality of spiral grooves 4 are formed in the orifice 201, and when water flows through the orifice 201, the water flows are rotated and eddy currents are generated due to the spiral grooves 4, and the eddy currents can play a role in washing away the dirt.
As shown in fig. 5, the action process of the present invention is as follows:
sealing rings are arranged in the first annular check groove 101 and the second annular check groove 301, the throttling flange plate 1 is placed between the two water pipelines 5, sealing gaskets 6 are laid on two sides of the throttling flange plate 1, the check ring 3 extends into the water pipelines 5 in the water inflow direction, and the two water pipelines 5 are connected through bolt assemblies.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. The utility model provides a pipeline decompression orifice plate for fire control which characterized in that: the novel anti-leakage pipeline is characterized by comprising a throttling flange plate (1), wherein a plurality of first annular check grooves (101) are formed in two end faces of the throttling flange plate (1), a mounting hole (102) is formed in the center of the throttling flange plate (1), a throttling head (2) is connected to the mounting hole (102) through threaded connection, and a throttling hole (201) is formed in the center of the throttling head (2).
2. A fire fighting pipeline pressure relief orifice plate as defined in claim 1, wherein: the water retaining side of the throttling flange plate (1) is fixedly connected with an anti-diarrhea ring (3), and a plurality of second annular anti-diarrhea grooves (301) are formed in the circumferential side wall of the anti-diarrhea ring (3).
3. A fire fighting pipeline pressure relief orifice plate as defined in claim 2, wherein: the inner ring of the water inlet end of the antidiarrheal ring (3) is provided with a chamfer.
4. A fire fighting pipeline pressure relief orifice plate as defined in claim 1, wherein: the throttle hole (201) is in a divergent cone shape in the water flow direction.
5. A fire fighting pipeline pressure relief orifice plate as defined in claim 1, wherein: a plurality of spiral grooves (4) are arranged in the throttle hole (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357606.5U CN210424148U (en) | 2019-08-21 | 2019-08-21 | Pipeline pressure relief orifice plate for fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921357606.5U CN210424148U (en) | 2019-08-21 | 2019-08-21 | Pipeline pressure relief orifice plate for fire control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210424148U true CN210424148U (en) | 2020-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921357606.5U Expired - Fee Related CN210424148U (en) | 2019-08-21 | 2019-08-21 | Pipeline pressure relief orifice plate for fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210424148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145829A (en) * | 2020-09-17 | 2020-12-29 | 席赫 | Double-end oil pipe nipple for oil field |
-
2019
- 2019-08-21 CN CN201921357606.5U patent/CN210424148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145829A (en) * | 2020-09-17 | 2020-12-29 | 席赫 | Double-end oil pipe nipple for oil field |
| CN112145829B (en) * | 2020-09-17 | 2021-06-15 | 大庆市华禹石油机械制造有限公司 | Double-end oil pipe nipple for oil field |
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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 |
Granted publication date: 20200428 Termination date: 20210821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |