CN111998161A - A protector for eliminating municipal administration conduit network cutout closes water hammer - Google Patents
A protector for eliminating municipal administration conduit network cutout closes water hammer Download PDFInfo
- Publication number
- CN111998161A CN111998161A CN202010905571.5A CN202010905571A CN111998161A CN 111998161 A CN111998161 A CN 111998161A CN 202010905571 A CN202010905571 A CN 202010905571A CN 111998161 A CN111998161 A CN 111998161A
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- Prior art keywords
- pressure
- pressure relief
- valve
- remote control
- control platform
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 230000001012 protector Effects 0.000 title description 2
- 230000008054 signal transmission Effects 0.000 claims abstract description 20
- 230000011664 signaling Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The embodiment of the invention discloses a protection device for eliminating a municipal water delivery pipe network cut-off closing water hammer, which comprises a pressure relief pipe, wherein the pressure relief pipe is communicated with the municipal water delivery pipe network; the pressure relief pipe is provided with a pressure acquisition device; an air valve; a first-stage pressure relief valve and a second-stage pressure relief valve; a signal transmission device; and the remote control platform is used for receiving the pressure value signal, generating a control instruction according to the pressure value signal, and controlling the opening or closing of one of the air valve, the primary pressure release valve or the secondary pressure release valve by the control instruction. The invention adopts three-layer protection of the air valve, the first-stage pressure relief valve and the second-stage pressure relief valve, and the remote control platform generates correct control instructions by acquiring pressure values and transmitting pressure value signals to the remote control platform so as to control the opening and closing of the air valve, the first-stage pressure relief valve and the second-stage pressure relief valve.
Description
Technical Field
The invention relates to the field of municipal water delivery networks, in particular to a protection device for eliminating a water hammer caused by cut-off and closure of a municipal water delivery network.
Background
At present, the current shut-off closing water hammer protection of municipal water delivery networks only relies on an air valve (with double functions of air suction and air exhaust). When the water hammer phenomenon occurs to the pipe network, the water column is broken, the suction and exhaust valve is opened, and air enters the broken part, so that the negative pressure generated by pressure drop is avoided. When the two water columns are combined, the air is discharged from the exhaust valve (playing the role of an air cushion, prolonging the closing time of the water columns at the two ends), and the two water columns are prevented from being impacted quickly. The air inlet and the air outlet of the air valve are designed basically without calculation basis, and the corresponding models are selected only by design specifications or experience. In the two-section water column closing process, the exhaust time is difficult to control, and the closing time of the water columns at two ends is too fast, so that the closing water hammer is easy to occur. Once the water hammer (especially the project with large water flow) is closed by the cut-off of the water, the pipe explosion is initiated, and the long-time and large-area water cut-off accident is caused.
Disclosure of Invention
The invention aims to provide a protection device for eliminating the municipal water supply pipe network cut-off closing water hammer, and the protection device solves the technical problems.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a protection device for eliminating the water hammer caused by the cut-off of a municipal water delivery pipe network comprises a pressure relief pipe, wherein the pressure relief pipe is communicated with the municipal water delivery pipe network;
the pressure relief pipe is provided with
The pressure acquisition device is used for acquiring the pressure in the pressure relief pipe and generating a pressure value signal;
an air valve for supplying air and exhausting air;
the primary pressure relief valve and the secondary pressure relief valve are used for relieving pressure;
the signal transmission device is connected with the pressure acquisition device and is used for transmitting the pressure value signal;
and the remote control platform is connected with the signal transmission device and used for receiving the pressure value signal, the remote control platform generates a control instruction according to the pressure value signal, and the control instruction controls the air valve, the primary pressure release valve or one of the secondary pressure release valves to be opened or closed.
Preferably, a first warning value, a second warning value and a third warning value are set in the remote control platform, the second warning value is greater than the first warning value, and the third warning value is greater than the second warning value.
Preferably, when the pressure value signal is greater than the first warning value, the remote control platform generates a first control instruction, and the first control instruction controls the air valve to open.
Preferably, when the pressure value signal is greater than the second warning value, the remote control platform generates a second control instruction, and the second control instruction controls the primary pressure relief valve to open.
Preferably, when the pressure value signal is greater than the third warning value, the remote control platform generates a third control instruction, and the third control instruction controls the secondary pressure relief valve to open.
Preferably, the primary pressure relief valve is a safety valve.
Preferably, the secondary pressure relief valve is an electric valve.
Preferably, the remote control platform transmits the control command to the air valve, the primary pressure relief valve and the secondary pressure relief valve through a network.
Preferably, the remote control platform records all the pressure value signals to form a pressure database, and if the pressure value signals are not in the recording range of the pressure database, the remote control platform gives an alarm.
Preferably, a positioning device is arranged on the signal transmission device and used for positioning the signal transmission device and generating a positioning signal, and the signal transmission device transmits the positioning signal to the remote control platform together when transmitting the pressure value signal every time.
Has the advantages that: according to the invention, three-layer protection of the air valve, the first-stage pressure release valve and the second-stage pressure release valve is adopted, the pressure value is acquired and the pressure value signal is transmitted to the remote control platform, and the remote control platform generates a correct control instruction according to the pressure value so as to control the opening and closing of the air valve, the first-stage pressure release valve and the second-stage pressure release valve, so that when a water hammer occurs to a pipe network, the pressure can be timely discharged from the pipe network, the damage of the pipe network due to high pressure is avoided, and the safety of.
Drawings
FIG. 1 is a schematic structural view of a protection device for eliminating a shut-off water hammer according to the present invention;
fig. 2 is a block diagram of the electrical connections of the present invention for the water hammer break relief guard.
In the figure: 1-pressure relief pipe; 10-municipal water delivery network; 2-a pressure acquisition device; 3-an air valve; 4-first-stage pressure relief valve; 5-a secondary pressure relief valve; 6-signal transmission means; 60-a positioning device; 7-remote control platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1 and 2, the invention provides a protection device for eliminating the water hammer caused by the cut-off and the closure of a municipal water delivery network, which comprises a pressure relief pipe 1, wherein the pressure relief pipe 1 is communicated with a municipal water delivery network 10;
mounted on the pressure-relief tube 1
The pressure acquisition device 2 can adopt a pressure sensor and is used for acquiring the pressure in the pressure relief pipe 1 and generating a pressure value signal;
an air valve 3 for supplying air and exhausting air;
the primary pressure release valve 4 and the secondary pressure release valve 5 are used for releasing pressure;
the signal transmission device 6 is connected with the pressure acquisition device 2 and is used for transmitting the pressure value signal;
and the remote control platform 7 is connected with the signal transmission device 6 and used for receiving the pressure value signal, the remote control platform 7 generates a control instruction according to the pressure value signal, and the control instruction controls one of the air valve 3, the primary pressure release valve 4 or the secondary pressure release valve 5 to be opened or closed.
The invention has the advantages that:
according to the invention, three-layer protection of the air valve, the first-stage pressure release valve and the second-stage pressure release valve is adopted, the pressure value is acquired and the pressure value signal is transmitted to the remote control platform, and the remote control platform generates a correct control instruction according to the pressure value so as to control the opening and closing of the air valve, the first-stage pressure release valve and the second-stage pressure release valve, so that when a water hammer occurs to a pipe network, the pressure can be timely discharged from the pipe network, the damage of the pipe network due to high pressure is avoided, and the safety of.
As a preferred embodiment of the present invention, a first alarm value, a second alarm value and a third alarm value are set in the remote control platform, the second alarm value is greater than the first alarm value, and the third alarm value is greater than the second alarm value.
As a preferred embodiment of the present invention, when the pressure value signal a is greater than the first alarm value, the remote control platform generates a first control command b, which controls the opening of the air valve 3.
In a preferred embodiment of the invention, when the pressure value signal a is greater than the second warning value, the remote control platform generates a second control command, and the second control command c controls the primary pressure relief valve 4 to open.
In a preferred embodiment of the invention, when the pressure value signal a is greater than the third warning value, the remote control platform generates a third control command, and the third control command d controls the secondary pressure relief valve 5 to open.
As shown in fig. 2, the first control command b, the second control command c and the third control command d are all transmitted to the air valve, the primary pressure relief valve and the secondary pressure relief valve through the signal transmission device.
In a preferred embodiment of the present invention, the primary relief valve 4 is a relief valve.
In a preferred embodiment of the present invention, the secondary relief valve 5 is an electric valve.
As a preferred embodiment of the invention, the remote control platform 7 transmits control instructions to the air valve 3, the primary pressure release valve 4 and the secondary pressure release valve 5 through a network, so that the control valves are faster and more efficient, and release pressure in time, and the safety of a pipe network is ensured.
In a preferred embodiment of the present invention, an alarm device 70 is provided in the remote control platform 7. The remote control platform 7 records all pressure value signals to form a pressure database, and if the pressure value signals are not in the recording range of the pressure database, the control platform gives an alarm. Reminding the staff to notice, water pressure in the pipe network has produced new change, remote control platform is from taking machine intelligence learning function, learns the trend that the air valve department takes place the produced pressure variation of water hammer each time, in case take place unusually, the historical pressure variation that has not taken place promptly, and system automatic alarm reminds the staff to pay close attention to the unusual incident of pipe network, improves the level of fine management, protection pipe network safety.
As a preferred embodiment of the present invention, the signal transmission device 6 is provided with a positioning device 60 for positioning the signal transmission device 6 and generating a positioning signal, and the signal transmission device 6 transmits the positioning signal to the remote control platform 7 together each time the signal transmission device transmits the pressure value signal. The pipe network which generates the water hammer phenomenon or has abnormal water pressure is positioned, and the working personnel is reminded of knowing and overhauling the pipe network which generates the water hammer in time.
The specific protection principle of the protection device provided by the invention is as follows:
when a water hammer phenomenon occurs in the pipe network and the water column of the pipe network is broken, the pressure value signal acquired by the pressure acquisition device 2 is greater than a first warning value, the remote control platform generates a first control signal to control the air valve to be opened, and after the air valve is opened, air enters the pipe network to quickly supplement air to the pipe network at the broken part of the water column, so that the water column is prevented from being broken and negative pressure is generated. When the two water columns are combined, the air is discharged from the air valve, and the air plays a role of an air cushion. After the water hammer is finished, the pressure is reduced to a normal value, the pressure value signal is smaller than a first warning value, and the remote control platform controls the pressure acquisition device 2 to be closed.
And if the pressure value is greater than the second warning value, the second warning value is consistent with the pressure threshold value of the safety valve, and the safety valve is opened to release the pressure. Meanwhile, the signal transmission device sends the pressure value signal to a remote control platform to alarm and position a problem source. And the remote control platform starts to detect the accident point, and if the pressure value is still above the second warning value (or is greater than the third warning value), the remote control platform controls the electric valve to be opened to release the pressure.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A protection device for eliminating the water hammer caused by the cut-off of a municipal water delivery pipe network is characterized by comprising a pressure relief pipe, wherein the pressure relief pipe is communicated with the municipal water delivery pipe network;
the pressure relief pipe is provided with
The pressure acquisition device is used for acquiring the pressure in the pressure relief pipe and generating a pressure value signal;
an air valve for supplying air and exhausting air;
the primary pressure relief valve and the secondary pressure relief valve are used for relieving pressure;
the signal transmission device is connected with the pressure acquisition device and is used for transmitting the pressure value signal;
and the remote control platform is connected with the signal transmission device and used for receiving the pressure value signal, the remote control platform generates a control instruction according to the pressure value signal, and the control instruction controls the air valve, the primary pressure release valve or one of the secondary pressure release valves to be opened or closed.
2. The protection device for eliminating municipal water pipe network flow break closure water hammer according to claim 1, wherein a first alarm value, a second alarm value and a third alarm value are set in the remote control platform, the second alarm value is greater than the first alarm value, and the third alarm value is greater than the second alarm value.
3. The protection device for eliminating the municipal water pipe network flow-cutoff closing water hammer according to claim 2, wherein when the pressure value signal is greater than the first alarm value, the remote control platform generates a first control command, and the first control command controls the air valve to open.
4. The protection device for eliminating the municipal water pipe network flow-cutoff closing water hammer according to claim 2, wherein when the pressure value signal is greater than the second warning value, the remote control platform generates a second control command, and the second control command controls the primary pressure relief valve to open.
5. The protection device for eliminating the municipal water pipe network flow-cutoff closing water hammer according to claim 1, wherein when the pressure value signal is greater than the third warning value, the remote control platform generates a third control command, and the third control command controls the secondary pressure relief valve to open.
6. The protection device for eliminating municipal water supply network shut-off and shut-off water hammer according to claim 1, characterized in that the primary pressure relief valve is a safety valve.
7. The protection device for eliminating municipal water supply network shut-off and shut-off water hammer according to claim 1, wherein the secondary pressure relief valve is an electrically operated valve.
8. The protection device for eliminating municipal water supply network shut-off and shut-off water hammer according to claim 1, wherein the remote control platform transmits the control command to the air valve, the primary pressure relief valve and the secondary pressure relief valve via a network.
9. The protection device for eliminating the municipal water pipe network flow breaking closure water hammer according to claim 1, wherein the remote control platform records all the pressure value signals to form a pressure database, and the remote control platform alarms if the pressure value signals are not in the recording range of the pressure database.
10. The protection device for eliminating the municipal water pipe network flow-breaking closure water hammer according to claim 1, wherein a positioning device is arranged on the signal transmission device and used for positioning the signal transmission device and generating a positioning signal, and the signal transmission device transmits the positioning signal to the remote control platform together every time the signal transmission device transmits the pressure value signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905571.5A CN111998161A (en) | 2020-09-01 | 2020-09-01 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905571.5A CN111998161A (en) | 2020-09-01 | 2020-09-01 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111998161A true CN111998161A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010905571.5A Pending CN111998161A (en) | 2020-09-01 | 2020-09-01 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
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| CN (1) | CN111998161A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200458779Y1 (en) * | 2011-12-30 | 2012-03-09 | 주식회사 파이어스 | Fire extinguisher |
| 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 |
| JP2013167308A (en) * | 2012-02-16 | 2013-08-29 | Kubota Corp | Air valve device |
| CN203363402U (en) * | 2013-07-10 | 2013-12-25 | 贵州省水利水电勘测设计研究院 | Device eliminating influence on pipeline from cutoff close water hammer in water delivery pipeline |
| CN104747749A (en) * | 2015-03-20 | 2015-07-01 | 河海大学 | Ball valve system for agricultural irrigation throttling and pipe water hammer protection and control method thereof |
| CN106885694A (en) * | 2017-04-12 | 2017-06-23 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device and air valve performance test methods |
| CN206695983U (en) * | 2017-04-12 | 2017-12-01 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device |
| CN208309686U (en) * | 2018-05-07 | 2019-01-01 | 西安理工大学 | A kind of air valve protecting water hammer device |
| CN210440080U (en) * | 2019-05-16 | 2020-05-01 | 中国瑞林工程技术股份有限公司 | Buffering system for eliminating underground pipeline drainage water hammer |
| CN213040062U (en) * | 2020-09-01 | 2021-04-23 | 上海威派格智慧水务股份有限公司 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
-
2020
- 2020-09-01 CN CN202010905571.5A patent/CN111998161A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200458779Y1 (en) * | 2011-12-30 | 2012-03-09 | 주식회사 파이어스 | Fire extinguisher |
| JP2013167308A (en) * | 2012-02-16 | 2013-08-29 | Kubota Corp | Air valve 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 |
| CN203363402U (en) * | 2013-07-10 | 2013-12-25 | 贵州省水利水电勘测设计研究院 | Device eliminating influence on pipeline from cutoff close water hammer in water delivery pipeline |
| CN104747749A (en) * | 2015-03-20 | 2015-07-01 | 河海大学 | Ball valve system for agricultural irrigation throttling and pipe water hammer protection and control method thereof |
| CN106885694A (en) * | 2017-04-12 | 2017-06-23 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device and air valve performance test methods |
| CN206695983U (en) * | 2017-04-12 | 2017-12-01 | 株洲南方阀门股份有限公司 | A kind of air valve performance testing device |
| CN208309686U (en) * | 2018-05-07 | 2019-01-01 | 西安理工大学 | A kind of air valve protecting water hammer device |
| CN210440080U (en) * | 2019-05-16 | 2020-05-01 | 中国瑞林工程技术股份有限公司 | Buffering system for eliminating underground pipeline drainage water hammer |
| CN213040062U (en) * | 2020-09-01 | 2021-04-23 | 上海威派格智慧水务股份有限公司 | A protector for eliminating municipal administration conduit network cutout closes water hammer |
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