CN208415367U - A kind of more valve protecting water hammer devices - Google Patents
A kind of more valve protecting water hammer devices Download PDFInfo
- Publication number
- CN208415367U CN208415367U CN201820668879.0U CN201820668879U CN208415367U CN 208415367 U CN208415367 U CN 208415367U CN 201820668879 U CN201820668879 U CN 201820668879U CN 208415367 U CN208415367 U CN 208415367U
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- CN
- China
- Prior art keywords
- valve
- controlled valve
- water hammer
- bypass pipe
- hydraulic pipeline
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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 - Fee Related
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Abstract
A kind of more valve protecting water hammer devices disclosed by the utility model, hydraulic pipeline including being connected to intake pool and discharge bay, water pump is installed on hydraulic pipeline, the output end of water pump affixed two stages close butterfly valve, controlled valve is also connected on hydraulic pipeline, bypass pipe one end is also connected on hydraulic pipeline, the bypass pipe other end is connected to outside air.A kind of more valve protecting water hammer devices disclosed by the utility model, solve the problems, such as that existing protecting water hammer device protection effect is limited, and, in Calculations of Hydraulic Transient, two stages close butterfly valve, intermediate controlled valve and end controlled valve and are automatically closed according to the program being set in advance, and timely and effectively water hammer can be inhibited to endanger.Structure is simple, safe and reliable to operation；It is easy to use, it is easy to repair, and low cost；Protecting water hammer effect is good.
Description
Technical field
The utility model belongs to the technical field of water conveying, is related to a kind of more valve protecting water hammer devices.
Background technique
Over long distances pump water-carriage system often due to pumping accident and water hammer accident occurs, cause pressure pipeline, water pump, valve
Etc. wrecking, supplies water and interrupt, cause heavy losses.Pressure reduces rapidly after pump when pump-stopping water hammer occurs for pump water-carriage system, drops
Pipe transmmision after wave direction pump is pressed, leads to occur serious decompression along water-carriage system pipeline, pipeline initial pressure may be because compared with dot
It is down to pressure for vaporization to be depressured excessive, generates column separation phenomenon, the water hammer due to cavities collapsing induced will generate very big pressure
Power jeopardizes the safety of pipeline.If pressure reduction can be prevented in time, pressure rise can be effectively reduced.
Currently, there are two ways to preventing pressure reduction in Calculations of Hydraulic Transient: another one is being filled the water into pipeline
It is the gas injection into pipeline.The protecting water hammer measure filled the water into pipeline is mainly surge tower (case) and air tank；It is infused into pipeline
The protecting water hammer measure of gas is mainly air valve.Surge tower (case) and air tank are at high cost, and operational management is inconvenient；Air valve only has
When the pressure in pipeline is less than atmospheric pressure could gas injection, therefore its protecting water hammer effect is limited.By way of filling the water with gas injection
Reduce Calculations of Hydraulic Transient pressure have its disadvantage, we by control pump water-carriage system inside controlled valve operating scheme come
The water hammer accident of protection pump water-carriage system.
Utility model content
The purpose of the utility model is to provide a kind of more valve protecting water hammer devices, and it is anti-to solve existing protecting water hammer device
Protect the limited problem of effect, also, a kind of more valve protecting water hammer devices of the utility model are in Calculations of Hydraulic Transient, two stages
It closes butterfly valve, intermediate controlled valve and end controlled valve to be automatically closed according to the program being set in advance, can timely and effectively press down
Water hammer harm processed.
The utility model the technical scheme adopted is that a kind of more valve protecting water hammer devices, including connection intake pool with go out
The hydraulic pipeline in pond, is equipped with water pump on hydraulic pipeline, and the output end of water pump affixed two stages close butterfly valve, on hydraulic pipeline
It is also connected with controlled valve, bypass pipe one end is also connected on hydraulic pipeline, the bypass pipe other end is connected to outside air.
Other features of the utility model also reside in,
Controlled valve includes intermediate controlled valve and end controlled valve, and intermediate controlled valve is located at the rear for two stages closing butterfly valve,
Positioned at the front of end controlled valve, and bypass pipe is arranged between intermediate controlled valve and end controlled valve, controllable by proximal end
On the hydraulic pipeline of valve.
The diameter of bypass pipe is less than the diameter of aqueduct.
Two stages close butterfly valve, intermediate controlled valve and end controlled valve and are internally provided with Electric Actuator, Electric Actuator
Two stages closing butterfly valve, intermediate controlled valve and end controlled valve are controlled by electric signal.
The quantity of bypass pipe is one.
The utility model has the beneficial effects that a kind of more valve protecting water hammer devices, solve existing protecting water hammer device
The limited problem of protection effect, also, in Calculations of Hydraulic Transient, it is controllable that two stages close butterfly valve, intermediate controlled valve and end
Valve is automatically closed according to the program being set in advance, and timely and effectively water hammer can be inhibited to endanger.Structure is simple, and operational safety can
It leans on；It is easy to use, it is easy to repair, and low cost；Protecting water hammer effect is good.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of more valve protecting water hammer devices of the utility model.
In figure, 1. intake pools, 2. water pumps, 3. two stages closed butterfly valve, 4. intermediate controlled valves, 5. end controlled valves, by 6.
Siphunculus, 7. discharge bays.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of more valve protecting water hammer devices of the utility model, as shown in Figure 1, including connection intake pool 1 and discharge bay 7
Hydraulic pipeline, is equipped with water pump 2 on hydraulic pipeline, and the output end of water pump 2 affixed two stages close butterfly valve 3, on hydraulic pipeline also
It is connected with controlled valve, 6 one end of bypass pipe is also connected on hydraulic pipeline, 6 other end of bypass pipe is connected to outside air.
Controlled valve includes intermediate controlled valve 4 and end controlled valve 5, after intermediate controlled valve 4 is located at two stages closing butterfly valve 3
Side, positioned at the front of end controlled valve 5, and bypass pipe 6 is arranged between intermediate controlled valve 4 and end controlled valve 5, close to end
On the hydraulic pipeline for holding controlled valve 5.
The diameter of bypass pipe 6 is less than the diameter of aqueduct.
Two stages close butterfly valve 3, intermediate controlled valve 4 and end controlled valve 5 and are internally provided with Electric Actuator, electronic execution
Device controls two stages closing butterfly valve 3, intermediate controlled valve 4 and end controlled valve 5 by electric signal, and two stages close butterfly valve 3, centre
Controlled valve 4 and the external power supply unit of end controlled valve 5, power supply unit can be traditional power supply mode or solar powered dress
It sets.
The quantity of bypass pipe 6 is one.
A kind of working principle of more valve protecting water hammer devices of the utility model is that two stages close butterfly valve 3, centre controllably
The bolt down procedure of valve 4 and end controlled valve 5 is to be calculated according to engineering is practical using program optimization, and two stages will close butterfly
The bolt down procedure of valve 3, intermediate controlled valve 4 and end controlled valve 5 is set in the electric operator of three itself connection, is passed through
Electric operator realizes that two stages close the opening and closing degree of butterfly valve 3, intermediate controlled valve 4 and end controlled valve 5, and two stages close
Butterfly valve, intermediate controlled valve and end controlled valve itself are provided with electric operator, two stages close butterfly valve, intermediate controlled valve and
End controlled valve is controlled by electric operator, and generally the pass valve program of valve is located in electric operator
Face, valve will be acted by electric signal according to the pass valve program inside electric operator at work.
Two stages close butterfly valve can weaken water hammer positive pressure in Calculations of Hydraulic Transient, and can limit and flow backwards flow and fall
Rotary speed.Two stages close butterfly valve and generate very big local resistance in the quick closing valve stage, and when aqueous reflux, butterfly valve is not yet all closed,
Therefore part aqueous reflux, so that boosting be made to reduce；Slowly the stage is being closed, since the raising of pressure and the variation of flow velocity are directly proportional, slowly
Pass process causes the increment of change in flow to reduce, thus within the range of permission by the pressure rise limitation of outlet conduit.It is defeated
Intermediate controlled valve 4 is set among waterpipe, and end controlled valve 5 and bypass pipe 6 is arranged in aqueduct end, and Calculations of Hydraulic Transient is worked as
In, when pump-stopping water hammer occurs for pump water-carriage system, generate decompression wave at pump end first, usual pressure drop it is more, then boost value is just
It is bigger.If being able to suppress decompression, so that it may excessively high pressure rise is effectively prevent, to protect water-carriage system safe.In thing
Therefore when termination of pumping, is rationally controlled by the Electric Actuator of intermediate controlled valve 4 and end controlled valve 5 itself and to be installed on hydraulic pipeline
The bolt down procedure of intermediate controlled valve 4 and end controlled valve 5 makes it generate the barotropic wave upstream propagated, and offsets part accident and stops
The decompression wave generated is pumped, thus effective protection water hammer.If hydraulic pressure is down to tube hub elevation before end controlled valve 5 on hydraulic pipeline
When, at this time since the pressure in pipe is less than the pressure outside pipe, so bypass pipe 6 will be from tonifying Qi in trend pipeline；When end is controllable
When hydraulic pressure is equal to tube hub elevation before valve 5, at this point, the pressure in pipe is equal to the pressure outside pipe, reach pressure balance inside and outside pipe,
Bypass pipe 6 will be automatically stopped tonifying Qi, and the tonifying Qi of bypass pipe is mainly to automatically control according in pipe with the pressure balance outside pipe, when
When overpressure is less than pipe external pressure, bypass pipe automatic inflating device, when overpressure is greater than pipe external pressure, bypass pipe is arranged automatically
Gas.
Pump end pressure drop when pump-stopping water hammer occurs for a kind of more valve protecting water hammer devices of the utility model, pump water-carriage system
Low, controlled valve is rationally controlled by Electric Actuator can make it generate the barotropic wave upstream propagated, to offset pump end
It is depressured wave, effective protection water hammer.
Claims (5)
1. a kind of more valve protecting water hammer devices, which is characterized in that the hydraulic pipeline including being connected to intake pool (1) and discharge bay (7),
It is equipped on the hydraulic pipeline water pump (2), the output end of the water pump (2) affixed two stages close butterfly valve (3), the water delivery
It is also connected with controlled valve on pipeline, bypass pipe (6) one end is also connected on the hydraulic pipeline, bypass pipe (6) other end connects
Logical outside air.
2. a kind of more valve protecting water hammer devices as described in claim 1, which is characterized in that the controlled valve includes intermediate controllable
Valve (4) and end controlled valve (5), the intermediate controlled valve (4) are located at the rear for the two stages closing butterfly valve (3), are located at institute
The front of end controlled valve (5) is stated, and the bypass pipe (6) setting is controllable in the intermediate controlled valve (4) and the end
Between valve (5), on the hydraulic pipeline of the end controlled valve (5).
3. a kind of more valve protecting water hammer devices as described in claim 1, which is characterized in that the diameter of the bypass pipe (6) is small
In the diameter of the aqueduct.
4. a kind of more valve protecting water hammer devices as claimed in claim 2, which is characterized in that two stages closing butterfly valve (3),
The intermediate controlled valve (4) and the end controlled valve (5) are internally provided with Electric Actuator, and the Electric Actuator passes through electricity
Signal controls two stages closing butterfly valve (3), the intermediate controlled valve (4) and the end controlled valve (5).
5. a kind of more valve protecting water hammer devices as described in claim 1, which is characterized in that the quantity of the bypass pipe (6) is
One.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668879.0U CN208415367U (en) | 2018-05-07 | 2018-05-07 | A kind of more valve protecting water hammer devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668879.0U CN208415367U (en) | 2018-05-07 | 2018-05-07 | A kind of more valve protecting water hammer devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208415367U true CN208415367U (en) | 2019-01-22 |
Family
ID=65117614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820668879.0U Expired - Fee Related CN208415367U (en) | 2018-05-07 | 2018-05-07 | A kind of more valve protecting water hammer devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208415367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594554A (en) * | 2020-12-09 | 2021-04-02 | 河海大学 | Valve operation method for solving problem of overlarge positive pressure of high-lift water delivery system |
-
2018
- 2018-05-07 CN CN201820668879.0U patent/CN208415367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594554A (en) * | 2020-12-09 | 2021-04-02 | 河海大学 | Valve operation method for solving problem of overlarge positive pressure of high-lift water delivery system |
| CN112594554B (en) * | 2020-12-09 | 2021-11-12 | 河海大学 | Valve operation method for solving problem of overlarge positive pressure of high-lift water delivery system |
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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 |
Granted publication date: 20190122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |