CN209669981U - It is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances - Google Patents
It is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances Download PDFInfo
- Publication number
- CN209669981U CN209669981U CN201822013837.6U CN201822013837U CN209669981U CN 209669981 U CN209669981 U CN 209669981U CN 201822013837 U CN201822013837 U CN 201822013837U CN 209669981 U CN209669981 U CN 209669981U
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- China
- Prior art keywords
- injection pipe
- air injection
- water
- aqueduct
- pumping
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Abstract
The utility model discloses a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, including for pumping the aqueduct in water-carriage system over long distances, the aqueduct is locally having bending, the local highest point of the aqueduct connects air injection pipe c, service valve (7) are set on the air injection pipe c, it is provided on the aqueduct and surveys splenium part, the air injection pipe c is separately connected air injection pipe b and air injection pipe a, the air injection pipe b is connected with air injection pipe a, the survey splenium part connects controller, the air injection pipe b passes through controllable valve B connection air valve, the air injection pipe a passes through controllable valve A connection compressed air cylinder, the controller is connect with controllable valve A and controllable valve B respectively, solve the problems, such as that operational management existing in the prior art is inconvenient.
Description
Technical field
The utility model belongs to pump water delivery engineering technical field over long distances, is related to a kind of for pumping water-carriage system over long distances
Gas injection protecting water hammer device.
Background technique
In long range pump water-carriage system, paroxysmal pumping accident will cause the suddenly change of water velocity in pipeline,
Cause manifold pressure significantly to increase, reduce alternately variation, the negative pressure that pump-stopping water hammer generates may make certain positions of pipeline
The pressure of (especially Local Convex starting point) drops to steam pressure hereinafter, causing liquid partial vaporization, generates water column separation phenomenon,
What is induced makes water hammer up and will generate immense pressure, so that aqueduct, valve be made to be destroyed, or even floods pump house, supplies water
It interrupts, causes heavy losses.
Air tank is as a kind of effective protecting water hammer measure, in Calculations of Hydraulic Transient, by the elasticity of gas, make be
Pressure of uniting is stablized in a certain range, still, when aqueduct is longer, and flow is larger, necessarily will cause operational management not
Just the problems such as.
Utility model content
The purpose of the utility model is to provide a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, solves
The problem of air tank operational management inconvenience when aqueduct is longer in the prior art.
The utility model is the technical scheme adopted is that a kind of gas injection protecting water hammer for pumping water-carriage system over long distances fills
It sets, including for pumping the aqueduct in water-carriage system over long distances, aqueduct is locally having protrusion, and the part of aqueduct is most
High point vertically connects air injection pipe c, is arranged service valve on air injection pipe c, and air injection pipe c-axis is to connection air injection pipe b, one end of air injection pipe b
Air injection pipe c is connected, for the other end of air injection pipe b by controllable valve B connection air valve, air injection pipe c vertically connects air injection pipe a, institute
The other end for stating one end connection the air injection pipe c, air injection pipe a of air injection pipe a passes through controllable valve A connection compressed air cylinder, water-supply-pipe
It is provided on road and surveys splenium part, surveyed splenium part and connect controller, controller is connect with controllable valve A and controllable valve B respectively.
The technical characteristics of the utility model also resides in:
The compressed air cylinder may be provided in air valve pit.
It is connected between the air injection pipe c and b and air injection pipe a using threeway.
The survey splenium part is pressure sensor or pressure gauge.
The utility model has the beneficial effects that a kind of for pumping the gas injection protecting water hammer device of water-carriage system, In over long distances
Pressure sensor is installed, pressure sensor connects controller, and controller is separately connected controllable valve A and controlled valve on aqueduct
Door B, controller controls the aperture of controllable valve A and controllable valve B according to the real time data that pressure sensor measures, pass through to
High pressure gas is injected in pipeline, can inhibit in time the generation of negative pressure water hammer, to reduce the harm of water hammer.With air tank phase
Than tank body is small in size, low cost；It is mounted in air door well, and operational management is convenient, and protecting water hammer effect is good.
Detailed description of the invention
Fig. 1 is that the utility model is a kind of for pumping the structure chart of the gas injection protecting water hammer device of water-carriage system over long distances；
Fig. 2 is that the utility model is a kind of for pumping the partial enlargement of the gas injection protecting water hammer device of water-carriage system over long distances
Figure；
In figure, 1. compressed air cylinders, 2. controllable valve A, 3. air injection pipe a, 4. air valves, 5. controllable valve B, 6. are controlled
Device, 7. service valves, 8. survey splenium part, 9. aqueducts, 10. air injection pipe b, 11. air injection pipe c.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, including with
Aqueduct 9 in long range pump water-carriage system, the aqueduct 9 are locally having protrusion, the local highest of aqueduct 9
Point is vertical to connect air injection pipe c11, is provided on aqueduct 9 and surveys splenium part 8, service valve 7 is arranged on air injection pipe c11, such as Fig. 2
Shown, axially connection air injection pipe b10, air injection pipe c11 and air injection pipe a3 is vertically connected air injection pipe c11, air injection pipe b10 and air injection pipe
A3 is vertically connected, and is surveyed splenium part 8 and is connect with controller 6, and air injection pipe b10 passes through controllable valve B5 far from one end of air injection pipe c11
Air valve 4 is connected, the one end of the air injection pipe a3 far from air injection pipe c11 passes through controllable valve A2 connection compressed air cylinder 1, edge
There is free air valve chamber beside aqueduct, compressed air cylinder 1 may be provided in air valve pit, and the controller 6 is respectively and controllably
Valve A2 is connected with controllable valve B5, is connected between air injection pipe c11 and b10 and air injection pipe a3 using threeway.
Specifically, pressure sensor or pressure gauge can be used by surveying splenium part 8, pressure sensing is used when surveying splenium part 8
When device, the mountable inside in aqueduct 9 of pressure sensor, as long as guaranteeing pressure in the position that the inside of aqueduct 9 is installed
Force snesor can be buried by water, and controller 6 is connect with pressure sensor；Pressure sensor also may be mounted at aqueduct
9 outside is flowed into water in container, pressure sensor is set by one container of external connection in aqueduct 9
It sets in container, controller 6 is connect with pressure sensor；When surveying splenium part 8 using pressure gauge, connected with a tubule
The installation site of aqueduct 9 and pressure gauge, tubule is that the water of aqueduct 9 can be connected to pressure gauge by tubule, is being pressed
One data link is installed on power table, the data of pressure gauge is enable to be transmitted to controller 6.
A kind of working principle for pumping the gas injection protecting water hammer device of water-carriage system over long distances of the utility model is to overhaul
Valve 7 is only closed in overhaul of the equipments, system during normal operation, controllable valve A2 close, controllable valve B5 open, air valve
4 work normally.When pumping accident, controllable valve B5 is closed, and is less than normal operation pressure when surveying the pressure value that splenium part 8 measures
When, controller 6 controls the aperture of controllable valve A2, changes the gas injected in aqueduct 9 with the variation of overpressure；
When pipeline pressure rises, and the pressure value that survey splenium part 8 measures is more than or equal to point normal operation pressure, the control of controller 6 can
Valve A2 is controlled to close.Controllable valve A2 come control valve aperture, and then controls the gas for entering aqueduct 9 by controller 6
Amount, can inhibit in time the generation of negative pressure water hammer, to reduce the harm of water hammer.It, can after Calculations of Hydraulic Transient terminates
It controls valve B5 to open, the gas in aqueduct 9 is discharged by air valve 4.
Claims (4)
1. a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, which is characterized in that including for pumping over long distances
Aqueduct (9) in water-carriage system, the aqueduct (9) are locally having protrusion, the local highest of the aqueduct (9)
Point is vertical to connect air injection pipe c (11), service valve (7) is arranged on the air injection pipe c (11), the air injection pipe c (11) axially connects
One end of air injection pipe b (10), the air injection pipe b (10) connect air injection pipe c (11), and the other end of the air injection pipe b (10) passes through
Controllable valve B (5) connection air valve (4), the air injection pipe c (11) vertically connection air injection pipe a (3), the air injection pipe a (3)
One end connects air injection pipe c (11), and the other end of the air injection pipe a (3) connects compressed air cylinder (1) by controllable valve A (2),
It is provided on the aqueduct (9) and surveys splenium part (8), the survey splenium part (8) connects controller (6), the controller (6)
It is connect respectively with controllable valve A (2) and controllable valve B (5).
2. according to claim 1 a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, feature exists
In the compressed air cylinder (1) may be provided in air valve pit.
3. according to claim 1 a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, feature exists
In the air injection pipe c (11) uses threeway to connect between b (10) and air injection pipe a (3).
4. according to claim 1 a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances, feature exists
In the survey splenium part (8) is pressure sensor or pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822013837.6U CN209669981U (en) | 2018-12-03 | 2018-12-03 | It is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822013837.6U CN209669981U (en) | 2018-12-03 | 2018-12-03 | It is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209669981U true CN209669981U (en) | 2019-11-22 |
Family
ID=68561834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822013837.6U Expired - Fee Related CN209669981U (en) | 2018-12-03 | 2018-12-03 | It is a kind of for pumping the gas injection protecting water hammer device of water-carriage system over long distances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209669981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095715A (en) * | 2020-09-11 | 2020-12-18 | 河海大学 | Air bag type continuous high-water-level water replenishing one-way tower |
| CN115355650A (en) * | 2022-07-29 | 2022-11-18 | 中国水利水电科学研究院 | Power plant circulating cooling water hammer prevention system and method and design method |
-
2018
- 2018-12-03 CN CN201822013837.6U patent/CN209669981U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095715A (en) * | 2020-09-11 | 2020-12-18 | 河海大学 | Air bag type continuous high-water-level water replenishing one-way tower |
| CN115355650A (en) * | 2022-07-29 | 2022-11-18 | 中国水利水电科学研究院 | Power plant circulating cooling water hammer prevention system and method and design method |
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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: 20191122 Termination date: 20211203 |