CN2828489Y - Device for starting multifunction water pump control valve at light loading station - Google Patents
Device for starting multifunction water pump control valve at light loading station Download PDFInfo
- Publication number
- CN2828489Y CN2828489Y CN 200520200605 CN200520200605U CN2828489Y CN 2828489 Y CN2828489 Y CN 2828489Y CN 200520200605 CN200520200605 CN 200520200605 CN 200520200605 U CN200520200605 U CN 200520200605U CN 2828489 Y CN2828489 Y CN 2828489Y
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- valve
- water pump
- control valve
- control
- pump
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- Expired - Fee Related
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Abstract
The utility model discloses a device for starting a multifunction water pump control valve in a light load state, the utility model is characterized in that a bypass pipeline for opening the water pump control valve is formed from an A end to a B end, the A end is communicated with a main pipeline on an outlet end of a water pump, and the B end is communicated with a lower cavity of a control chamber of the water pump control valve; a ball valve, a filter, a one way valve and a liquid control trip valve are orderly connected with the bypass pipeline from the A end to the B end, wherein the one way valve is connected with the liquid control trip valve in parallel and an elastic power end of the liquid control trip valve is connected with pressure water of an outlet of the water pump. When a water pump is started, the one way valve is in a closed state, the opening pressure of the liquor control trip valve is opened, adjusted and set by an adjustable spring, when the pressure of the outlet of the water pump reaches a set value, the multifunction water pump control valve is opened slowly, and thus, the starting of a motor of the water pump in a light load state is ensured; when the water pump is stopped, residual water in the lower cavity of the control chamber of the multifunction water pump control valve directly and inversely flows in the main pipe on the outlet of the water pump, and thus, the closing motion of pump stopping of the multifunction water pump control valve is successfully completed.
Description
(1) technical field
The utility model relates to the starting drive of a kind of starting drive of valve, particularly a kind of control valve for water pump.
(2) background technique
The starting drive of existing control valve for water pump is the bypass line that the main pipe at pump outlet is connected with the control room cavity of resorption of control valve for water pump.Be in series with little safety check, filter and modulating valve in this bypass line successively.When this device was applied to control valve for water pump, control valve for water pump was mainly controlled by the pumping system pressure water.When opening pump, the pump discharge pressure water slowly enters the control room cavity of resorption of control valve for water pump by little safety check, filter, the modulating valve of control valve for water pump entrance point bypass tube, to realize the breakdown action of valve; During termination of pumping, the backflow pressure water of pipe network system is by the filter of control valve for water pump outlet end bypass tube, the control room epicoele that modulating valve enters control valve for water pump, to realize the closing motion of valve.Use the control valve for water pump of existing starting drive, can satisfy the functional requirement of pump valve interlock in the automation water-raising system basically.The Starting mode of this control valve for water pump is to reach the purpose that underloading opens pump with the speed opening speed of valve (promptly allow less than the toggle speed of pump motor) that little safety check and modulating valve restrictive pump outlet pressure water enters control valve for water pump control room cavity of resorption.But, the control valve for water pump of using existing starting drive has following defective: control valve for water pump and pump almost are synchronous startups, and along with pump discharge pressure raises, the aperture of control valve for water pump strengthens synchronously, thereby pump motor comes down to start in the process that load progressively increases, especially accurately the aperture of regulating and controlling valve, or cause control valve opening excessive because of operate miss, so often cause pump motor load in start-up course excessive, the phenomenon that trips when therefore usually opening pump, even burn out motor and the accident of the controlling parts of being correlated with.
(3) model utility content
The purpose of this utility model is the light-load starting device that a kind of multifunctional water pump control valve will be provided, solve control valve for water pump after using existing starting drive, in the process that the load of being everlasting increases, start, can not make the pump motor light-load starting, trip easily when opening pump even burn out the technical problem of motor and relevant controlling parts.
The purpose of this utility model is finished as follows: the feature of this multifunctional water pump control valve light-load starting device: hold the bypass line that constitutes a unlatching control valve for water pump to the B end from A, its A end is communicated with the main pipe of pump outlet, the B end is communicated with the control room cavity of resorption of control valve for water pump, this bypass line is held to B end connection successively from A: ball valve, filter, one-way valve and hydraulic control cut-off valve, wherein one-way valve is in parallel with the hydraulic control cut-off valve, and the elastic dynamic end of hydraulic control cut-off valve links to each other with the pressure water of exit of pump.
The elastic dynamic end of above-mentioned hydraulic control cut-off valve is common spring or adjustable spring.
Working principle: the utility model is connected with control valve for water pump, and when work, the hydraulic control motive force of the hydraulic control cut-off valve in the utility model is directly provided by the pump discharge pressure water, and its breakout pressure is by the adjustable spring adjustment, and its original state is a closed condition.When opening pump, one-way valve is in closed condition, the pump discharge pressure water can only enter the control room cavity of resorption of multifunctional water pump control valve by the hydraulic control cut-off valve, and the original state of hydraulic control cut-off valve also is a closed condition, so at this moment the pump discharge pressure water control room cavity of resorption that can't enter multifunctional water pump control valve comes Open valve, thereby pump motor is in the light-load starting process, have only after pump motor starts fully, when pump discharge pressure reaches the predefined breakout pressure of hydraulic control cut-off valve, the hydraulic control cut-off valve could be opened, at this moment the pump discharge pressure water slowly enters the control room cavity of resorption of multifunctional water pump control valve by the hydraulic control cut-off valve, thereby realizes the breakdown action of multifunctional water pump control valve.During termination of pumping, pump discharge hydraulic pressure descends, the hydraulic control cut-off valve cuts out automatically, multifunctional water pump control valve outlet end pressure water is by its outlet end bypass tube, the filter manual modulation valve enters the closing motion that its control room epicoele is realized valve, and the water of cavity of resorption directly is back among the pump discharge person in charge by entrance point bypass tube, one-way valve, filter, manual modulation valve etc.
The utility model is after being applied to control valve for water pump, can guarantee that control valve for water pump is in closed condition in the pump motor start-up course, guarantee that pump motor starts under light condition, and can guarantee the programmed sequence of operations interlock of pump valve by water pump, and after pump motor starts fully, control valve for water pump is slowly opened to system water supply again, so it can satisfy the function that realizes the pump valve interlock in the automation water-raising system by the programmed sequence of operations of water pump, the Security that has improved pump motor greatly fully.The utility model has following multiple function: can make that control valve for water pump slow is opened, anti-tripping operation, cracking pressure is adjustable, the keying effect steadily, light-load starting, safe and reliable, can be used for various diaphragm type control valve for water pump or piston-type underwater pump control valve.
(4) description of drawings
Below in conjunction with accompanying drawing most preferred embodiment is described.
Fig. 1 is a structural principle schematic representation of the present utility model.
(5) embodiment
With reference to Fig. 1, structure of the present utility model: hold the bypass line that constitutes a unlatching control valve for water pump to the B end from A, its A end is communicated with the main pipe of pump outlet, the B end is communicated with the control room cavity of resorption of control valve for water pump, and this bypass line is held to B end connection successively from A: ball valve 1, filter 2, one-way valve 4 and hydraulic control cut-off valve 3.The connection of concrete pipeline is: from the A end, ball valve 1 be connected one-way valve 4 and hydraulic control cut-off valve 3 after filter 2 is connected, one-way valve 4 and hydraulic control cut-off valve 3 are in parallel afterwards to be held to B.The power end of hydraulic control cut-off valve 3 links to each other with the pressure water of exit of pump.The adjustable spring of the elastic dynamic end of hydraulic control cut-off valve links to each other with the pressure water of exit of pump.When engaging pressure need not be adjusted, the adjustable spring of the elastic dynamic end of hydraulic control cut-off valve also can be common spring.
The present invention is applied to the working procedure of control valve for water pump: when starting mode of pump, the pump outlet water pressure raises, pressure water promptly flows to the B end from the A end of the utility model multifunctional water pump control valve light-load starting device, at this moment one-way valve 4 is in closed condition, and hydraulic control cut-off valve 3 also is in closed condition, so, pressure water can not arrive the B end, the entry pump valve control room cavity of resorption of going forward side by side, thereby, control valve for water pump still is in initial closed state, and the start-up course that so just can guarantee pump motor is a light-load starting.After the pump smooth starting, pump discharge end hydraulic pressure reaches the breakout pressure that the hydraulic control cut-off valve is set up in advance, this is that the hydraulic control cut-off valve is opened, pressure water just reaches the control room cavity of resorption that the B end enters control valve by ball valve 1, filter 2, hydraulic control cut-off valve 3, slowly open control valve for water pump, at this moment water pump begins to system water supply, has so just finished the overall process of light-load starting safely and smoothly.And during termination of pumping, system's backwater pressure water enters control valve for water pump control room epicoele, realize closing the valve purpose, the surplus water of cavity of resorption then passes back in the pump discharge main pipe through one-way valve 4, filter 2, ball valve 1 from the bypass pipe B end, thereby automatic safe is finished the overall process that valve is closed in termination of pumping reposefully.
Claims (2)
1. multifunctional water pump control valve light-load starting device, it is characterized in that: hold the bypass line that constitutes a unlatching control valve for water pump to the B end from A, its A end is communicated with the main pipe of pump outlet, the B end is communicated with the control room cavity of resorption of control valve for water pump, this bypass line is held to B end connection successively from A: ball valve, filter, one-way valve and hydraulic control cut-off valve, wherein one-way valve is in parallel with the hydraulic control cut-off valve, and the elastic dynamic end of hydraulic control cut-off valve links to each other with the pressure water of exit of pump.
2. multifunctional water pump control valve light-load starting device according to claim 1 is characterized in that: the elastic dynamic end of above-mentioned hydraulic control cut-off valve is common spring or adjustable spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200605 CN2828489Y (en) | 2005-08-19 | 2005-08-19 | Device for starting multifunction water pump control valve at light loading station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200605 CN2828489Y (en) | 2005-08-19 | 2005-08-19 | Device for starting multifunction water pump control valve at light loading station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828489Y true CN2828489Y (en) | 2006-10-18 |
Family
ID=37080045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200605 Expired - Fee Related CN2828489Y (en) | 2005-08-19 | 2005-08-19 | Device for starting multifunction water pump control valve at light loading station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828489Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405934A (en) * | 2014-11-13 | 2015-03-11 | 福建南方路面机械有限公司 | Liquid conveying system capable of preventing frost cracking of pipeline |
-
2005
- 2005-08-19 CN CN 200520200605 patent/CN2828489Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405934A (en) * | 2014-11-13 | 2015-03-11 | 福建南方路面机械有限公司 | Liquid conveying system capable of preventing frost cracking of pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20130819 |