CN203174676U - Pre-opening pressure relief device - Google Patents
Pre-opening pressure relief device Download PDFInfo
- Publication number
- CN203174676U CN203174676U CN 201320089315 CN201320089315U CN203174676U CN 203174676 U CN203174676 U CN 203174676U CN 201320089315 CN201320089315 CN 201320089315 CN 201320089315 U CN201320089315 U CN 201320089315U CN 203174676 U CN203174676 U CN 203174676U
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- CN
- China
- Prior art keywords
- valve
- pressure
- relief device
- bypass pipe
- water
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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 - Lifetime
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Abstract
The utility model relates to a pre-opening pressure relief device which comprises a pressure release valve. The pre-opening pressure relief device further comprises a needle valve, an electromagnetic pilot valve and a ball valve. A water inlet bypass pipe communicated with an upper cavity is arranged at the water inlet end of a valve body, a water outlet bypass pipe communicated with the upper cavity is arranged at the water outlet end of the valve body, the needle valve is connected on the water inlet bypass pipe in series, and the electromagnetic pilot valve and the ball valve are connected on the water outlet bypass pipe in series. Through the technical scheme of the pre-opening pressure relief device, a pressure sensor is used for collecting pipe network pressure data to control opening or closing of the electromagnetic pilot valve to reduce or increase the pressure of the upper cavity of the valve body, a valve can be opened or closed in advance before the pressure of a pipe network reaches a maximum value or is reduced to a minimum value, the surplus energy of the pipe network is released, the pressure of a system is maintained to be stable between a high pressure setting value and a lower pressure setting value, damage generated on the pipelines, equipment and the like by the pipelines of the pipe network when a water pump is shut down, or power fails or the valve is closed suddenly is avoided, the normal running of the system is guaranteed, and the pre-opening pressure relief device performs the functions of water hammer preventing and overpressure protection.
Description
Technical field
The utility model relates to a kind of pipeline pressure relief device, particularly relates to a kind of pressure relief device of opening in advance.
Background technology
In the water system of prior art, pressure relief device all is that its reaction speed is slow by the control of mechanical pilot valve, and poor stability can not reduce or increase the valve upper cavity pressure immediately, delays the unlatching of valve or closes; When water hammer occurring, can not discharge pipe network excess enthalpy energy fast, easily pipe network is damaged, had a strong impact on safety and the application life of pipe network.
The utility model content
In view of this, main purpose of the present utility model provides a kind of pressure relief device of opening in advance, pass through the technical program, can preestablish the close value of rated high voltage value, nominal low-voltage value and the ductwork pressure answer of solenoid pilot valve unlatching, make ductwork pressure when obvious fluctuation is arranged, this device can be made a response rapidly and in time be opened valve, discharge pipe network excess enthalpy energy, prevent from the destruction of when phenomenons such as water hammer and superpressure occur pipe network system being caused from having guaranteed the normal operation of system and often having prolonged the application life of system.
The technical scheme that the utility model addresses the above problem is: a kind of pressure relief device of opening in advance, comprise relief valve, the valve body of described relief valve is provided with epicoele, include needle-valve, electromagnetism conducting valve and ball valve, the water inlet end of described valve body is provided with the water inlet bypass pipe that is connected with epicoele, the water side of described valve body is provided with the water outlet bypass pipe that is connected with epicoele, and described needle-valve is serially connected in on the water bypass pipe, and described electromagnetism conducting valve and ball valve are serially connected on the water outlet bypass pipe.
As further optimization, also include control cabinet and pipe network, described pipe network is provided with pressure transmitter, and described pressure transmitter is connected with control cabinet by connecting line with solenoid pilot valve on the water outlet bypass pipe.
The valve inleting water end of described relief valve is provided with pressure meter.
When described solenoid pilot valve is redefined for net pressure and is higher than the rated high voltage value of setting, or ductwork pressure is when being lower than predefined nominal low-voltage value, and solenoid pilot valve is opened, and makes epicoele be in release conditions.
Beneficial effect after the employing technique scheme is: a kind of pressure relief device of opening in advance; pass through the technical program; under the effect of pressure transmitter, collect the data of ductwork pressure; and according to image data; control opening or closing of solenoid pilot valve through control cabinet; reduce or increase the interior pressure of valve body epicoele thereby reach; control relief valve unlatching or close; play and discharge pipe network excess enthalpy energy; keep pressure stability in the system between rated high voltage value and nominal low-voltage value; thereby avoided the pipe network pipeline to shut down at water pump; have a power failure and valve when closing suddenly to the pipeline band infringement; guarantee the normal operation of system, played anti-water hammer; the effect of overpressure protection.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 pressure transmitter, 2 valve bodies, 3 pressure meters, 4 needle-valves, 5 electromagnetism conducting valves, 6 ball valves, 7 control cabinets, 8 relief valves, 9 epicoeles, 10 water inlet bypass pipes, 11 water outlet bypass pipes, 12 pipe networks.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model and specific embodiment are described in further detail.
As shown in Figure 1, the utility model relates to opens pressure relief device in advance, comprise relief valve 8, the valve body 2 of described relief valve 8 is provided with epicoele 9, also include needle-valve 4, electromagnetism conducting valve 5 and ball valve 6, the water inlet end of described valve body 2 is provided with the water inlet bypass pipe 10 that is connected with epicoele 9, and the water side of described valve body 2 is provided with the water outlet bypass pipe 11 that is connected with epicoele 9, described needle-valve 4 is serially connected in on the water bypass pipe 10, and described electromagnetism conducting valve 5 and ball valve 6 are serially connected on the water outlet bypass pipe 10.
As further optimization, also include control cabinet 7 and pipe network 12, described pipe network 12 is provided with pressure transmitter 1, and described pressure transmitter 1 is connected with control cabinet 7 by connecting line with electromagnetism conducting valve 5 on the water outlet bypass pipe 11.
Valve body 2 water inlet ends of described relief valve 8 are provided with pressure meter 3.
When described electromagnetism conducting valve 5 is redefined for ductwork pressure and is higher than the rated high voltage value of setting, or ductwork pressure is when being lower than predefined nominal low-voltage value, and the electromagnetism conducting valve is opened, and makes epicoele be in release conditions.
The utility model is when work, and opening pressure relief device in advance needs to pass in the control cabinet by pressure transmitter 1 collection pipe network 12 pressure datas and with it.
Operating mode one, when control cabinet 7 detected ductwork pressure value that pressure transmitter 1 collects greater than predefined rated high voltage value, electromagnetism conducting valve 5 was opened rapidly, and epicoele 9 pressure of valve body 2 reduce, and relief valve 8 is opened the excess enthalpy energy emission is fallen; When control cabinet 7 detects pipe network surplus pressure value that pressure transmitter 1 collects and is lower than the nominal low-voltage value that electromagnetism conducting valve 5 closes, electromagnetism conducting valve 5 is closed, epicoele 9 pressure of valve body 2 increase, relief valve 8 valve closings, and the pressure stability in making system is between high pressure and low voltage value.
Operating mode two, pipe network 12 force value that collect when control cabinet 7 detected pressures transmitters 1 are during less than predefined nominal low-voltage value, illustrate that pipe network has unusually, water hammer may take place, electromagnetism conducting valve 5 is opened rapidly, valve body 2 epicoeles 9 pressure reduce, relief valve 8 is opened the excess enthalpy energy emission is fallen, wait for that simultaneously the unusual caused water hammer high pressure of pipe network arrives, when the pipe network that collects when control cabinet 7 detected pressures sensors 1 recovered force value and is higher than the setting value that the electromagnetism conducting valve closes, electromagnetism conducting valve electromagnetism conducting valve 5 was closed, and valve 2 epicoeles 9 pressure increase, relief valve 8 valve closings, the pressure stability in making system is between high pressure and low voltage value.
The above only is preferable possible embodiments of the present utility model, is not in order to limit protection domain of the present utility model.
Claims (3)
1. open pressure relief device in advance for one kind, comprise relief valve, the valve body of described relief valve is provided with epicoele, it is characterized in that, include needle-valve, electromagnetism conducting valve and ball valve, the water inlet end of described valve body is provided with the water inlet bypass pipe that is connected with epicoele, and the water side of described valve body is provided with the water outlet bypass pipe that is connected with epicoele, described needle-valve is serially connected in on the water bypass pipe, and described electromagnetism conducting valve and ball valve are serially connected on the water outlet bypass pipe.
2. the pressure relief device of opening in advance according to claim 1 is characterized in that, include control cabinet and pipe network, described pipe network is provided with pressure transmitter, and described pressure transmitter is connected with control cabinet by connecting line with electromagnetism conducting valve on the water outlet bypass pipe.
3. the pressure relief device of opening in advance according to claim 1 is characterized in that, the valve inleting water end of described relief valve is provided with pressure meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089315 CN203174676U (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089315 CN203174676U (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174676U true CN203174676U (en) | 2013-09-04 |
Family
ID=49071400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320089315 Expired - Lifetime CN203174676U (en) | 2013-02-27 | 2013-02-27 | Pre-opening pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203174676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005451A (en) * | 2013-02-27 | 2014-08-27 | 上海威派格环保科技有限公司 | Pre-opening pressure relief device |
-
2013
- 2013-02-27 CN CN 201320089315 patent/CN203174676U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005451A (en) * | 2013-02-27 | 2014-08-27 | 上海威派格环保科技有限公司 | Pre-opening pressure relief device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 201806 Shanghai City, Jiading District Heng Road, Lane 2, No. 1, B District, layer 518 Patentee after: WPG (SHANGHAI) SMART WATER PUBLIC Co.,Ltd. Address before: 201806 Shanghai city Jiading District Lu Yi Road No. 5358 room 248 Patentee before: SHANGHAI WPG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 201806 Jiading District Road, Shanghai, No. 1 Patentee after: WPG (SHANGHAI) SMART WATER PUBLIC Co.,Ltd. Address before: 201806 Shanghai City, Jiading District Heng Road, Lane 2, No. 1, B District, layer 518 Patentee before: WPG (SHANGHAI) SMART WATER PUBLIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |