CN107328946A - Fluid injection non-return valve retarded capability detecting system - Google Patents
Fluid injection non-return valve retarded capability detecting system Download PDFInfo
- Publication number
- CN107328946A CN107328946A CN201710713602.5A CN201710713602A CN107328946A CN 107328946 A CN107328946 A CN 107328946A CN 201710713602 A CN201710713602 A CN 201710713602A CN 107328946 A CN107328946 A CN 107328946A
- Authority
- CN
- China
- Prior art keywords
- return valve
- membrane pump
- fluid injection
- pressure gauge
- retarded capability
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
Abstract
The invention discloses a kind of fluid injection non-return valve retarded capability detecting system, including membrane pump, the import of the membrane pump is communicated by filter with air, and the outlet of membrane pump is connected with pressure gauge all the way by tee pipe coupling, another road and fluid injection non-return valve inlet communication.The pressure gauge is digital pressure gauge, is in series with first switching element, the electric power loop of the membrane pump in the electric power loop of the digital pressure gauge and is in series with the first switching element and second switch element.The invention has the advantages that the retarded capability of non-return valve is come out by digital representation, and retarded capability identical non-return valve is subjected to grouping and classifying, so that non-return valve processing variation becomes controllable to the influence that injection needle reservoir quantity and fluid injection uniformity are caused, improve the cleaning liquid feeding operating efficiency of injection needle, eliminate safe hidden trouble, it is to avoid frequent to change the variation risk that non-return valve is brought.Meanwhile, simple in construction, easy to operate, manufacturing cost of the invention is cheap.
Description
Technical field
The present invention relates to Full-automatic chemiluminescence analyzer experiment pin fluid injection cleaning field, more particularly, to fluid injection check
Valve retarded capability detecting system.
Background technology
Full-automatic chemiluminescence analyzer belongs to precision instrument, the instrument injection needle（Test pin）Cleaning liquid feeding process be by
Same membrane pump is multiple to control（Generally ten）Fluid injection is cleaned while injection needle, and it cleans liquid feeding pipe-line system, work
Make flow as shown in Figure 3：Imbibition is operated by membrane pump 6（Arrow is designated as washing lotion flow direction）, flow through excessive pressure pipe 7, pinch valve
8, two-way is divided into by washing lotion after tee pipe coupling 9, by two current dividers 10 shunted after washing lotion is divided into ten tunnels, it is right respectively
Ten injection needles 11 carry out fluid injection；The water inlet of ten injection needles 11 connects a non-return valve 12, for preventing washing lotion from flowing back,
Pinch valve 8 controls the start and stop of the injection process of injection needle 11, and pinch valve 8 is closed before the fluid injection of injection needle 11, the work of membrane pump 6
The washing lotion for making to convey is built up in excessive pressure pipe 7, and pressure pipe of overflowing constantly expansion is reached in opening pinch valve 8 after certain pressure, pressure pipe 7 of overflowing
Washing lotion is flowed through under the effect of excessive pressure pipe pressure by the beginning fluid injection of current divider 10 after pinch valve 8, and fluid injection reaches certain volume and completed
Pinch valve 8 is closed afterwards.
There are the following problems in above-mentioned injection needle injection process：Because injection process is to pass through shunting by same membrane pump 6
Device 10 controls the fluid injection simultaneously of ten injection needles 11, because the water inlet of each injection needle 11 connects a non-return valve 12, and every
There is some difference for the retarded capability of individual non-return valve 12, i.e., each non-return valve 12 postpones or prevented the ability of medium proper flow to deposit
In different, the reservoir quantity that this results in different injection needles 11 is different, and fluid injection uniformity is difficult control, causes reactant
Amount is unequal, so as to influence experimental result.To solve the problem, mainly it is taken through changing different non-return valves 12, examination at present
And select the consistent non-return valve of retarded capability to solve.And it can be seen from the detergent line design feature shown in Fig. 3, often exist
A non-return valve 12 has been changed, other nine reservoir quantities of non-return valve 12 will have been allowed situation about fluctuating all occur, and operate non-
Often inconvenience, difficulty is big, testing efficiency is low, time-consuming；And repeatedly change the pipe that non-return valve 12 can cause to be connected with non-return valve 12
Path loss is hindered, and causes pipeline to produce non-recoverable deformation, there is potential safety hazard, the risk for having gas leakage and leakage leverages note
Liquid precision.
The content of the invention
Present invention aims at a kind of fluid injection non-return valve retarded capability detecting system is provided, the note of multiple injection needles is reached
Liquid measure ensures high consistency, reduces experiment safety risk.
To achieve the above object, the present invention takes following technical proposals：
Fluid injection of the present invention non-return valve retarded capability detecting system, including membrane pump, the import of the membrane pump pass through
Filter is communicated with air, and the outlet of membrane pump is connected with pressure gauge all the way by tee pipe coupling, another road and the fluid injection
Use non-return valve inlet communication.
The pressure gauge is digital pressure gauge, is in series with first switching element in the electric power loop of the digital pressure gauge,
The first switching element and second switch element are in series with the electric power loop of the membrane pump.
The invention has the advantages that the retarded capability of non-return valve is come out by digital representation, and retarded capability identical is inverse
Only valve carries out grouping and classifying so that non-return valve processing variation becomes to the influence that injection needle reservoir quantity and fluid injection uniformity are caused can
Control, improves the cleaning liquid feeding operating efficiency of injection needle, eliminates safe hidden trouble, it is to avoid frequent to change the variation that non-return valve is brought
Risk.Meanwhile, simple in construction, easy to operate, manufacturing cost of the invention is cheap.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the control circuit theory diagrams of the present invention.
Fig. 3 is the cleaning liquid feeding pipeline system construction drawing of the existing injection needle.
Structural representation.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, 2, fluid injection of the present invention non-return valve retarded capability detecting system, including membrane pump 1, barrier film
The import of pump 1 is communicated by filter 2 with air, and the outlet of membrane pump 1 passes through the tunnel of tee pipe coupling 3 one and digital pressure gauge 4
Connection, another road and the fluid injection inlet communication of non-return valve 5；First is in series with the direct current 24V electric power loops of digital pressure gauge 4 to open
Close in element A, the direct current 24V electric power loops of membrane pump and be in series with first switching element A and second switch element B.
During present invention work, a non-return valve 5 is accessed into retarded capability measure loop, closure first switching element A first
Powered to digital pressure gauge 4, then close second switch element B and powered to membrane pump 1, by import after the start-up operation of membrane pump 1
The air after filter filtering 2 is drawn through, after the air that membrane pump 1 is exported is shunted by tee pipe coupling 3, numeral is flowed to all the way
Pressure gauge 4, another road flows to non-return valve 5；The data are recorded after the registration of digital pressure gauge 4 is stable and the non-return valve 5 is entered
Line flag.Next non-return valve is changed afterwards repeats said process progress inspection amount, mark.
Using the retarded capability characteristic of non-return valve 5, the air of non-return valve 5 is flowed through since it is desired that opening non-return valve valve just needs
Want certain pressure, and pressure depends on load, non-return valve valve is more difficult to open, retarded capability is stronger, it is necessary to bigger pressure；
According to pascal's principle, the pressure in the same circuit everywhere is equal, so as to be read from the digital pressure gauge 4 in loop
Pressure value, the pressure value just characterizes the corresponding retarded capability of non-return valve 5.
Ten non-return valves 5 of retarded capability identical are divided into one group, in same cleaning liquid feeding pipe-line system, this
Sample, because the retarded capability of each non-return valve 5 is consistent so that final reservoir quantity is also consistent, so as to ensure that fluid injection essence
The uniformity of degree.
The present invention import of membrane pump 1 is communicated by filter 2 with air, be in order to ensure membrane pump 1 work when enter
The air pressure for entering air inlet is always consistent（Atmospheric pressure）, so as to ensure that the non-return valve retarded capability data of detection are accurate
Degree.
Certainly, the import of membrane pump 1 can also be communicated through filter 2 with fluid reservoir.It is necessary to ensure membrane pump 1
When carrying out retarded capability detection to each non-return valve 5, the fluid pressure into the import of membrane pump 5 is always consistent, that is, needs
The constant fluid reservoir of pressure, certainly will so need to increase the fabricating yard of equipment investment expense and fluid reservoir.
Claims (2)
1. a kind of fluid injection non-return valve retarded capability detecting system, it is characterised in that：Including membrane pump, the import of the membrane pump
Communicated by filter with air, the outlet of membrane pump is connected with pressure gauge all the way by tee pipe coupling, another road with it is described
Fluid injection non-return valve inlet communication.
2. fluid injection according to claim 1 non-return valve retarded capability detecting system, it is characterised in that：The pressure gauge is
First switching element, the electric power loop of the membrane pump are in series with digital pressure gauge, the electric power loop of the digital pressure gauge
In be in series with the first switching element and second switch element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713602.5A CN107328946A (en) | 2017-08-18 | 2017-08-18 | Fluid injection non-return valve retarded capability detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713602.5A CN107328946A (en) | 2017-08-18 | 2017-08-18 | Fluid injection non-return valve retarded capability detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107328946A true CN107328946A (en) | 2017-11-07 |
Family
ID=60224375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710713602.5A Pending CN107328946A (en) | 2017-08-18 | 2017-08-18 | Fluid injection non-return valve retarded capability detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107328946A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277344A (en) * | 2014-07-24 | 2016-01-27 | 江苏神通阀门股份有限公司 | Check valve opening pressure testing device |
| CN105334035A (en) * | 2015-11-02 | 2016-02-17 | 绵阳富临精工机械股份有限公司 | One-way valve performance test system and test method |
| CN106441846A (en) * | 2016-09-28 | 2017-02-22 | 上海舜宇恒平科学仪器有限公司 | One-way valve performance test method for liquid chromatographic instrument |
| CN106768723A (en) * | 2017-01-13 | 2017-05-31 | 平湖康弗莱尔汽车发动机系统有限公司 | Air flue check valve flow and device for detecting sealability |
| CN106918449A (en) * | 2015-12-24 | 2017-07-04 | 曼胡默尔滤清器（上海）有限公司 | The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter |
| CN207148133U (en) * | 2017-08-18 | 2018-03-27 | 安图实验仪器(郑州)有限公司 | Fluid injection non-return valve retarded capability detecting system |
-
2017
- 2017-08-18 CN CN201710713602.5A patent/CN107328946A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277344A (en) * | 2014-07-24 | 2016-01-27 | 江苏神通阀门股份有限公司 | Check valve opening pressure testing device |
| CN105334035A (en) * | 2015-11-02 | 2016-02-17 | 绵阳富临精工机械股份有限公司 | One-way valve performance test system and test method |
| CN106918449A (en) * | 2015-12-24 | 2017-07-04 | 曼胡默尔滤清器（上海）有限公司 | The measurement apparatus and method of non-return valve opening pressure in a kind of oil filter |
| CN106441846A (en) * | 2016-09-28 | 2017-02-22 | 上海舜宇恒平科学仪器有限公司 | One-way valve performance test method for liquid chromatographic instrument |
| CN106768723A (en) * | 2017-01-13 | 2017-05-31 | 平湖康弗莱尔汽车发动机系统有限公司 | Air flue check valve flow and device for detecting sealability |
| CN207148133U (en) * | 2017-08-18 | 2018-03-27 | 安图实验仪器(郑州)有限公司 | Fluid injection non-return valve retarded capability detecting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106693709A (en) | Water purification system and control method thereof and water purifier | |
| CN110102189A (en) | A kind of high-precision detection device for reverse osmosis membrane | |
| CN108975543B (en) | Water purification system and water purifier | |
| CN103148056B (en) | Hydraulic device leakage measuring device | |
| CN207148133U (en) | Fluid injection non-return valve retarded capability detecting system | |
| CN107328946A (en) | Fluid injection non-return valve retarded capability detecting system | |
| CN103090912A (en) | Filter element detecting device | |
| CN201476419U (en) | Fluid uniformly-distributed device | |
| CN203955051U (en) | A kind of ultrafilter leakage detection apparatus | |
| CN205861174U (en) | A kind of pipeline liquid sealing and circulating device of intelligence piston volume tube assay device | |
| CN106124379A (en) | A kind of filter element flow testing device | |
| CN202904223U (en) | Water-saving type developing device for machining circuit board | |
| CN204380529U (en) | A kind of miniature full-automatic hollow-fibre membrane test platform | |
| ES8402421A1 (en) | Device for testing leaks and cleaning conduits by circulation of a fluid. | |
| CN203672572U (en) | Passenger car rear axle gas tightness detection system | |
| CN202853864U (en) | Plastic mold's water channel sealed pressure-proof detection mechanism | |
| CN206486362U (en) | A kind of device for detecting Household water purification equipment filter element life | |
| CN208793045U (en) | A kind of Turbo-generator Set high pressure emergency trip module and experiement control device | |
| CN203163770U (en) | Filter element detection apparatus | |
| CN207654953U (en) | Integrating water route plate, integrating water route board group part and water purifier | |
| CN105858923A (en) | Waterway device for water purifier | |
| CN206863025U (en) | A kind of rock fluid erosion test device | |
| CN207004958U (en) | Flush pneumatic integrated system and its pneumatic module | |
| CN206920371U (en) | Pretreatment system for the low explosion limit analyzers of CIC | |
| CN208833343U (en) | A kind of flow capacity checking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171107 |