CN106400882B - Device for protecting water hammer of long-distance pump water supply system - Google Patents
Device for protecting water hammer of long-distance pump water supply system Download PDFInfo
- Publication number
- CN106400882B CN106400882B CN201611035665.1A CN201611035665A CN106400882B CN 106400882 B CN106400882 B CN 106400882B CN 201611035665 A CN201611035665 A CN 201611035665A CN 106400882 B CN106400882 B CN 106400882B
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- Prior art keywords
- valve
- water hammer
- air
- pressure
- water
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/02—Public or like main pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
Abstract
A device for long distance pump water supply system water hammer protection exists local high point in the conduit the device of water hammer protection is connected through the maintenance valve on the local high point, the device of water hammer protection includes compressed air jar, relief pressure valve, air valve, gas-supply pipeline, solenoid valve, the device of water hammer protection sets up the ventilation channel of being connected with compressed air jar, and the ventilation channel is relief pressure valve, gas-supply pipeline, solenoid valve A sequence connection, connects the air valve through solenoid valve B. In the hydraulic transition process, when the pressure in the water pipe is smaller than the set pressure of the outlet of the pressure reducing valve, compressed air is injected into the pipe, so that the damage of a water hammer is effectively restrained in time, and compared with a pressure regulating tower and an air tank, the hydraulic transition device is low in cost; compared with an air valve, the device improves the minimum pressure of the installation position of the device, and has good water hammer protection effect; the water hammer of the air injection protection long-distance pump water supply system has high guarantee rate and is safer and more efficient.
Description
Technical Field
The invention relates to the technical field of water delivery, in particular to a device for protecting a water hammer of a long-distance pump water supply system in a long-distance water delivery pipeline system.
Background
The long-distance pump water supply system is often in water hammer accidents caused by accident pump stopping, so that a pressure pipeline, a water pump, a valve and the like are damaged, water supply is interrupted, and serious loss is caused. The pump water supply system is stopped, the pump water hammer is a transient process of having positive pressure wave after the pressure is reduced, and if the pressure reduction can be prevented in time, the pressure rise can be effectively reduced.
Currently, there are two methods for preventing pressure drop during hydraulic transitions: one is to inject water into the pipeline, and the other is to inject air into the pipeline. The water hammer protection measures for injecting water into the pipeline mainly comprise a pressure regulating tower (box) and an air tank; the water hammer protection measure for injecting air into the pipeline is mainly an air valve. The pressure regulating tower (box) and the air tank have high cost and inconvenient operation and management; the air valve can inject air only when the pressure in the pipeline is smaller than the atmospheric pressure, so that the water hammer protection effect is limited.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for protecting a water hammer of a long-distance pump water supply system, which can effectively inhibit the damage of the water hammer in time in the hydraulic transition process.
The technical scheme provided by the invention is as follows:
a device for long distance pump water supply system water hammer protection exists local high point in the conduit the device of water hammer protection is connected through the maintenance valve on the local high point, the device of water hammer protection includes compressed air jar, relief pressure valve, air valve, gas-supply pipeline, solenoid valve, the device of water hammer protection sets up the ventilation channel of being connected with compressed air jar, and the ventilation channel is relief pressure valve, gas-supply pipeline, solenoid valve A sequence connection, connects the air valve through solenoid valve B.
According to the preferred technical scheme, the device for protecting the water hammer is provided with two ventilation channels.
The beneficial effects of the invention are as follows: in the hydraulic transition process, when the pressure in the water pipe is smaller than the set pressure of the outlet of the pressure reducing valve, compressed air is injected into the pipe, so that the damage of a water hammer is effectively restrained in time, and compared with a pressure regulating tower and an air tank, the hydraulic transition device is low in cost; compared with an air valve, the device improves the minimum pressure of the installation position of the device, and has good water hammer protection effect; the water hammer of the air injection protection long-distance pump water supply system can effectively prevent the pressure reduction of the air injection section pressure pipeline in time, so that the water hammer is restrained from boosting, the guarantee rate is high, and the safety and the efficiency are improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an arrangement mode of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a device for protecting a water hammer according to embodiment 1.
Fig. 3 is a schematic structural view of a device for protecting against water hammer of embodiment 2.
Wherein 1, a compressed air tank; 2. a pressure reducing valve; 3. a gas line; 4. a solenoid valve A; 5. an air valve; 6. a solenoid valve B; 7. a service valve; 8. a gas; 9. a water pipe; 10. a water pump; 11. a water inlet tank; 12. a water outlet tank; 13. an air valve.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the figure 1, in the long-distance pump water supply system, a water inlet tank is connected with a water pump through a water pipe, the water pump is connected with a water outlet tank through the water pipe, the water pump pumps water from the water inlet tank to the water outlet tank along the water pipe, due to the fact that different terrains, a plurality of local high points exist in the water pipe, each local high point is provided with an air valve, an overhaul valve is arranged in front of the air valve, one local high point is selected, and a device for protecting a water hammer is connected to the local high point through the overhaul valve.
According to fig. 2, the device for protecting the water hammer as embodiment 1 comprises a compressed air tank, a pressure reducing valve, an air pipeline and an electromagnetic valve, wherein the device for protecting the water hammer is provided with a ventilation channel connected with the compressed air tank, and the ventilation channels are sequentially connected with the pressure reducing valve, the air pipeline and the electromagnetic valve A and are connected with the air valve through the electromagnetic valve B.
According to fig. 3, in order to further improve the safety performance of the present invention, the structure of the device was further optimized, and as the device for protecting against water hammer of embodiment 2, the device for protecting against water hammer was provided with two ventilation channels, and the number of pressure reducing valves was increased as a backup.
The working principle of the invention is as follows: the maintenance valve is closed only when the equipment is maintained, the maintenance valve is opened during normal operation of the system, the electromagnetic valve A is closed, the electromagnetic valve B is opened, and the air valve can work normally; when the pump is stopped in an accident, the maintenance valve is opened, the electromagnetic valve B arranged in front of the air valve is closed, and the electromagnetic valve A arranged behind the pressure reducing valve is opened; when the pipeline pressure is smaller than the set pressure P of the outlet of the pressure reducing valve, the pressure reducing valve is opened to inject air into the pipeline, and when the pipeline pressure is larger than the set pressure P of the outlet of the pressure reducing valve, the pressure reducing valve is closed to stop injecting air into the pipeline; after the hydraulic transition process is finished, the electromagnetic valve A is closed, the electromagnetic valve B is opened, and the gas in the water delivery pipeline is discharged through the air valve.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. A device for long distance pump water supply system water hammer protection, its characterized in that: the hydraulic hammer protection device comprises a compressed air tank, a pressure reducing valve, an air valve, a gas transmission pipeline and an electromagnetic valve, wherein each local high point is provided with the air valve, the front of the air valve is provided with the maintenance valve, one local high point is selected, and the local high point is connected with the hydraulic hammer protection device through the maintenance valve;
the device for protecting the water hammer is provided with a ventilation channel connected with the compressed air tank, wherein the ventilation channels are sequentially connected with a pressure reducing valve, a gas pipeline and an electromagnetic valve A, and are connected with an air valve through an electromagnetic valve B;
the device for protecting the water hammer is provided with two ventilation channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035665.1A CN106400882B (en) | 2016-11-23 | 2016-11-23 | Device for protecting water hammer of long-distance pump water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035665.1A CN106400882B (en) | 2016-11-23 | 2016-11-23 | Device for protecting water hammer of long-distance pump water supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106400882A CN106400882A (en) | 2017-02-15 |
| CN106400882B true CN106400882B (en) | 2023-10-20 |
Family
ID=58083151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035665.1A Active CN106400882B (en) | 2016-11-23 | 2016-11-23 | Device for protecting water hammer of long-distance pump water supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106400882B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930366B (en) * | 2017-04-07 | 2019-04-02 | 浙江大学 | A kind of gas shock protective device of high-floor feedwater pipeline |
| CN109356424A (en) * | 2018-11-08 | 2019-02-19 | 河海大学 | A kind of spherical air tank reducing air tank total measurement (volume) and surface area |
| CN109630894B (en) * | 2018-12-21 | 2020-06-26 | 云南大红山管道有限公司 | Automatic air supplement and exhaust device for long-distance pipeline and operation method |
| 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 |
| CN115493092A (en) * | 2022-09-01 | 2022-12-20 | 云南大红山管道有限公司 | Long-distance large-pipe-diameter water delivery and transfer anti-leakage explosion-proof pipe monitoring system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080753A (en) * | 2010-12-23 | 2011-06-01 | 哈尔滨工业大学 | Air intake and exhaust pressure-bearing bidirectional pressure-regulating type water hammer protective device |
| CN102606842A (en) * | 2012-03-23 | 2012-07-25 | 中国市政工程西北设计研究院有限公司 | Protecting device for forward water hammer |
| CN204435471U (en) * | 2015-01-30 | 2015-07-01 | 史仁朋 | Novel water hammer protector |
| CN206328804U (en) * | 2016-11-23 | 2017-07-14 | 西安理工大学 | A kind of device for long range water supplying pump system protecting water hammer |
-
2016
- 2016-11-23 CN CN201611035665.1A patent/CN106400882B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080753A (en) * | 2010-12-23 | 2011-06-01 | 哈尔滨工业大学 | Air intake and exhaust pressure-bearing bidirectional pressure-regulating type water hammer protective device |
| CN102606842A (en) * | 2012-03-23 | 2012-07-25 | 中国市政工程西北设计研究院有限公司 | Protecting device for forward water hammer |
| CN204435471U (en) * | 2015-01-30 | 2015-07-01 | 史仁朋 | Novel water hammer protector |
| CN206328804U (en) * | 2016-11-23 | 2017-07-14 | 西安理工大学 | A kind of device for long range water supplying pump system protecting water hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106400882A (en) | 2017-02-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201229 Address after: 325000 Dongou street and second village, Yongjia County, Wenzhou, Zhejiang Applicant after: TEJI VALVE GROUP Co.,Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 5 Applicant before: XI'AN University OF TECHNOLOGY |
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