CN203116927U - Check valve detector - Google Patents
Check valve detector Download PDFInfo
- Publication number
- CN203116927U CN203116927U CN 201320168724 CN201320168724U CN203116927U CN 203116927 U CN203116927 U CN 203116927U CN 201320168724 CN201320168724 CN 201320168724 CN 201320168724 U CN201320168724 U CN 201320168724U CN 203116927 U CN203116927 U CN 203116927U
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- China
- Prior art keywords
- anchor clamps
- holding clamp
- base
- pipe
- mouth
- Prior art date
- 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
The utility model relates to a check valve detector which consists of a base, an up-holding clamp, a column, a lifting screw, a jack and a down-holding clamp. The base and the up-holding clamp are square. The down-holding clamp is circular. The base, the up-holding clamp and the column are fixedly connected through the lifting screw. The jack is placed on the base. The upper part of the jack is connected with the down-holding clamp. The down-holding clamp is provided with a water inlet orifice and a lower pressure measuring orifice. The up-holding clamp is provided with a pressurizing orifice and an upper pressure measuring orifice. The detector provided by the utility model changes the situation of blank of performance detecting instruments of check valves, and the check valve can be quickly and accurately detected.
Description
Technical field
The utility model relates to a kind of for detection of the reverse checkvalve water conservancy project journey performance detection instrument that arrives commonly used in the hydraulic engineering.
Technical background
In hydraulic engineering construction, ditch, canal, bank slope and some other engineering structure usually can face underground, and the face of land and otherwise plumbing problem in these problems of reply, need be used a lot of plumbing valves and water supply and sewerage pipeline.The performance quality of the engineering property of these water feeding and draining devices, successful installation, function is very big for the safe operation influence of engineering.Therefore, for the water conservancy project journey performance of these devices, it is very crucial that the detection of sealing property just seems.
Reverse checkvalve refers to rely on medium itself to flow and automatic open and close flap, is used for preventing the valve that medium flows backwards, and claims reverse checkvalve, retaining valve, reflux valve and counterbalance valve again.Reverse checkvalve belongs to a kind of automatic valve, and it mainly acts on is to prevent that medium from flowing backwards, preventing pump and driving motor counter-rotating, and the releasing of vessel media.Non-return valve also can be used for may rising to the backup system of pressing above system to wherein pressure to be provided on the pipeline of supply.Non-return valve mainly can be divided into swing check valve (according to the center of gravity rotation) and lift check valve (moving along axis).
For used reverse checkvalve in the hydraulic engineering, its major function is for phreatic drainage, if groundwater pressure increases because of a variety of causes, but owing to built native stone or xoncrete structure on the ground, normally draining, so ground corresponding construction can be because the seepage pressure effect, destroyedly falls at last.Simultaneously, the superstructure of face of land engineering is because function need be carried out retaining or other reasons has produced certain hydraulic pressure, and at this moment, it is underground that reverse checkvalve should prevent that these ponding from entering into, and the effect that this moment, valve should play is antiseepage.Therefore, for the equipment of this single slope drainage of reverse checkvalve, can it have very big influence in the due effect of performance in hydraulic engineering for the safe operation of hydraulic engineering.For reverse checkvalve, the quality of its performance mainly contains three critical indexs: (1) bottom loads hydraulic pressure, the initial head U of valve opening; (2) top loads hydraulic pressure, and valve guarantees reverse non-leakage pressure value P; (3) during normal draining, the flow value Q that valve passed through in the unit interval.
In engineering in the past, the proprietary instrument that detects at reverse checkvalve, water supply and sewerage pipeline (part) sealing still belongs to blank, generally all is easy test equipment of lift-launch when temporary needs test.Therefore, it is stable that the performance of equipment is difficult to keep, and the data of measuring are inaccurate, but also waste time and energy.Simultaneously, except reverse checkvalve, the test of the sealing property of a lot of water supply and sewerage pipelines does not yet have special instrument.Therefore it is necessary designing a testing tool at the performance index aspect of these plumbing valves.
The utility model content
The purpose of this utility model provide a kind of system, easy, fast for detection of the instrument of reverse checkvalve engineering property index.
The technical solution of the utility model is:
A kind of reverse checkvalve detector, by base, on hold anchor clamps, column, up and down screw, lifting jack and under hold anchor clamps and form, described base and on hold anchor clamps for the square, hold anchor clamps under described for circular, described base, on hold anchor clamps and fixedly connected by up and down screw with column, described lifting jack places on the described base, and the top of described lifting jack connects describedly holds anchor clamps down, holds anchor clamps under described to be provided with water inlet pipe mouth and the following pressure measurement mouth of pipe; Hold anchor clamps on described and be provided with the pressurization mouth of pipe and the last pressure measurement mouth of pipe.
Detecting instrument of the present utility model has changed the present situation of reverse checkvalve performance index detecting instrument blank, can realize that reverse checkvalve, water supply and sewerage pipeline (part) examine and determine fast and accurately.
Description of drawings
Fig. 1 detecting instrument synoptic diagram of the present utility model
Among the figure, 1. base is held anchor clamps on 2., 3. column, and 4. up and down screw, 5. lifting jack is 6. held anchor clamps down, 7. watertight rubber circle, 8. water inlet pipe mouth 9. descends the pressure measurement mouth of pipe, the 10. pressurization mouth of pipe, the pressure measurement mouth of pipe on 11., 12. tensimeters.
Embodiment
As shown in Figure 1, instrument for the detection of reverse checkvalve water conservancy project journey performance index of the present utility model, by base 1, on hold anchor clamps 2, column 3, up and down screw 4, lifting jack 5, hold anchor clamps 6 down and form, described base 1 and on hold anchor clamps 2 and be square, hold anchor clamps 6 under described for circular, described base 1, on hold anchor clamps 2 and fixedly connected by up and down screw 4 with column 3, described lifting jack 5 places on the base 1, the top of described lifting jack 5 connects describedly holds anchor clamps 6 down, holds anchor clamps 6 under described to be provided with water inlet pipe mouth 8 and the following pressure measurement mouth of pipe 9; Hold anchor clamps 2 on described and be provided with the pressurization mouth of pipe 10 and the last pressure measurement mouth of pipe 11.
Described base 1, on hold anchor clamps 2 and column 3 connects into the gate-type frame by up and down screw 4, can conveniently place and take out reverse checkvalve or water supply and sewerage pipeline (part), have pore the rigidity material on clamping fixture 6 and under hold anchor clamps 2 and watertight rubber circle, by lifting and the hydraulic pressure of lifting jack 5, can with tested member sealing and fixing under hold on the anchor clamps 6.
The described pressurization mouth of pipe 10 is three-way valve, and during detection, the one end is communicated with tested member, and electromagnetic type flow meter or the graduated cylinder of the aquifer yield in the time are communicated with tensimeter 12 and measuring unit respectively at other two ends.Described water inlet pipe mouth 8 connects automatic water filling compression system, and the described pressure measurement mouth of pipe 9 down is connected piezometric tube respectively with the last pressure measurement mouth of pipe 11.
Automatically the water filling compression system produces fluid under pressure by force (forcing) pump, through control pressurer system, be transported in the sample by forcing hose, carry out water conservancy project journey performance (opening water pressure, reverse non-leakage force value, the aquifer yield in the unit interval under the different water pressure value and the dense water energy etc.) test of reverse checkvalve or water supply and sewerage pipeline (part).
Claims (1)
1. reverse checkvalve detector, it is characterized in that, this detector by base, on hold anchor clamps, column, up and down screw, lifting jack and under hold anchor clamps and form, described base and on hold anchor clamps for the square, hold anchor clamps under described for circular, described base, on hold anchor clamps and fixedly connected by up and down screw with column, described lifting jack places on the described base, the top of described lifting jack connects describedly holds anchor clamps down, holds anchor clamps under described to be provided with water inlet pipe mouth and the following pressure measurement mouth of pipe; Hold anchor clamps on described and be provided with the pressurization mouth of pipe and the last pressure measurement mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168724 CN203116927U (en) | 2013-04-08 | 2013-04-08 | Check valve detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168724 CN203116927U (en) | 2013-04-08 | 2013-04-08 | Check valve detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116927U true CN203116927U (en) | 2013-08-07 |
Family
ID=48897263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320168724 Expired - Fee Related CN203116927U (en) | 2013-04-08 | 2013-04-08 | Check valve detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203116927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776985B (en) * | 2014-01-15 | 2017-08-29 | 上海理工大学 | Check valve performance testing device |
| CN107179169A (en) * | 2017-06-14 | 2017-09-19 | 中广核工程有限公司 | A kind of nuclear power station check valve action test set and test method |
| CN112098073A (en) * | 2020-08-28 | 2020-12-18 | 清华大学 | Method and device for detecting cold-state check performance of check combined valve |
-
2013
- 2013-04-08 CN CN 201320168724 patent/CN203116927U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776985B (en) * | 2014-01-15 | 2017-08-29 | 上海理工大学 | Check valve performance testing device |
| CN107179169A (en) * | 2017-06-14 | 2017-09-19 | 中广核工程有限公司 | A kind of nuclear power station check valve action test set and test method |
| CN112098073A (en) * | 2020-08-28 | 2020-12-18 | 清华大学 | Method and device for detecting cold-state check performance of check combined valve |
| CN112098073B (en) * | 2020-08-28 | 2021-11-09 | 清华大学 | Method and device for detecting cold-state check performance of check combined valve |
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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: 20130807 Termination date: 20140408 |