CN2051372U - Diaphragm monitoring warning device for metering pump - Google Patents
Diaphragm monitoring warning device for metering pump Download PDFInfo
- Publication number
- CN2051372U CN2051372U CN 89213068 CN89213068U CN2051372U CN 2051372 U CN2051372 U CN 2051372U CN 89213068 CN89213068 CN 89213068 CN 89213068 U CN89213068 U CN 89213068U CN 2051372 U CN2051372 U CN 2051372U
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- CN
- China
- Prior art keywords
- electrode
- barrier film
- metering pump
- model
- utility
- 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.)
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Abstract
The utility model is designed according to the principle that the solutions of the hydraulic oil in the plunger cavity of distilled water in the hydraulic pressure chamber of a diaphragm metering pump, and conveyed media all have different electric conductivities, so when two solutions are mixed, the electric conductivity varies immediately. The utility model is used for monitoring and alarming to prevent the medium solutions in the pipes from polluting devices when the diaphragm of a metering pump breaks. The utility model is composed of an exploring electrode couple, a plunger cavity of a metering pump, and an alarm circuit.
Description
The utility model is about chemical industry, and during the volume pump membrane ruptures that extensively adopts in the industries such as medicine, monitoring, alarming prevents the contaminated a kind of isolated plant of pipeline internal medium solution.
Seen a kind of barrier film alarm that report that volume pump barrier film alarm is arranged such as West Germany Le Wa company produce in the prior art abroad.It is to learn breaking of barrier film by the induction that back pressure that the pump inner septum is broken changes, and belongs to pressure sensitive.But this alarm is longer to the retardation time of reporting to the police from membrane ruptures, can cause medium pollution; At home, owing to there is not the barrier film alarm, in industries such as chemical industry, medicine, bioengineering,, membrane ruptures can cause great economic loss because of making medium pollution.Some enterprises pollute for preventing membrane ruptures, arrange in the time limit in 70 percent life-span to stop production at barrier film usually and change, and have also caused economic loss.
The purpose of this utility model is to provide the quick type barrier film of a kind ofization warning device, and it has sound, light is reported to the police, and shows the barrier film position of breaking, and can make pump out of service immediately, have only the barrier film that ought break to be replaced, after contaminated chamber was cleaned totally, pump just can restart.
The utility model is according to the distilled water in the diaphragm metering pump hydraulic pressure chamber (9), hydraulic oil in the plunger cavity (8), and be transferred these several solns such as medium solution different separately conductances is all arranged, because of after barrier film (6) breaks, just have two kinds of solution and mix, conductance this principle that will change immediately designs.It mainly by at least one group of exploring electrode to signal processing circuit (2), sound, light are reported to the police and driving circuit (4) power circuit (3) is formed.The positive pole of electrode group is placed in hydraulic pressure chamber (9) or plunger compartment (8), and negative pole links to each other with the pump housing.When the conductance that is transferred medium is very low,, the positive pole of electrode can be placed in the dielectric cavity (10) as some oil mediums.Like this, as long as membrane ruptures, will occur hydraulic oil and distilled water mix or distilled water is transferred the phenomenon that medium mixes, former conductance will change, make between the positive and negative electrode conducting and produce the short circuit electric current, amplify, remember, send sound and light alarm through electronic circuit, pilot lamp shows that motor shuts down automatically.
Owing to adopted the membrane ruptures monitoring alarm of changing quick type, the utility model has following advantage:
1. alarm velocity is fast.From the membrane ruptures to the warning, shut down the required time to be no more than 3 seconds, the contaminated possibility of medium is significantly reduced.For twin-diaphragm pump, the contaminated situation of medium can not produce.
2. detection sensitivity height.As long as barrier film has very faint breakage, cause even the variation of very little conductance, instrument also can send sound, light is reported to the police, and motor shuts down at once.
3. applied widely.Be applicable to broken warning of film when diaphragm metering pump is carried various medium, outside deacidification, alkali, salt medium and the water, also be suitable for for organic solution.
4. simple in structure, with low cost, easy to manufacture, be convenient to promote.
The utility model has following accompanying drawing:
Fig. 1 is the theory diagram of membrane ruptures monitoring alarm;
Fig. 2 is the electrode arrangement synoptic diagram;
Fig. 3 is the signal processing circuit of monitoring, warning device;
Fig. 4 is the power circuit of monitoring, warning device;
Fig. 5, Fig. 6 are that sound, light are reported to the police and driving circuit;
Below in conjunction with accompanying drawing, provide an embodiment of the present utility model, by narration, can further understand advantage of the present utility model to embodiment
As shown in Figure 1,1 is volume pump among the figure, and A, B are exploring electrode, and 2 is signal processing circuit, and 3 represent power circuit, and 4 representative sound, light are reported to the police and control circuit, and M represents motor.
Shown in Figure 2 is the situation of twin-diaphragm pump and the installation position of exploring electrode.The anodal A that two arrays of electrodes is right
1B
1Be placed in plunger cavity (8) and the hydraulic pressure chamber (9) negative pole A respectively
2, B
2It is suitably local to be connected to the pump housing.Be the sensitivity of raising detection and the speed of warning, available wire is with left barrier film confinement plate (11) and electrode A
1, right barrier film confinement plate (12) and B
1Connect, because insulation processing has been taked in the place that the barrier film confinement plate contacts with the pump housing, make the barrier film confinement plate positive pole of electrode in fact just, after membrane ruptures, the conductance of liquid will at first change in the place of nearly barrier film, because there is certain pressure in the motion of plunger (7) the furthermore interior hydraulic oil of hydraulic cavities (8), makes the very fast arrival confinement plate of mixed liquor, the variation of conductance is tested soon comes out.
As shown in Figure 3, present embodiment has adopted two kinds of electrode groups that sensitivity is different.Because the anodal A of A electrode group
1Be placed in the transformer oil that does not almost have electric conductivity in the plunger cavity (8), what survey is possible come from the influence of the interior distilled water of hydraulic pressure chamber (9) to electric conductivity, its sensitivity is had relatively high expectations, thereby the mode that signal has taked transistor base to import is to make very faint signal also can make T
3Conducting guarantees the sensitivity of detection, regulates R
13Make A
1A
2Between the short circuit electric current less than 100 μ A.When being transferred medium for the bigger medium of conductances such as acid, alkali, salt, less demanding to the detection sensitivity of electrode in the distilled water of B electrode arrangement in hydraulic pressure chamber (9) because of the medium conductance of perception is bigger, thereby detectable signal need not amplify; When being transferred medium is some very low organic solutions of conductance, as if some oil mediums, then need the electrode that adopts sensitivity higher, as if A electrode group is such, the way that signal is taked base stage input and amplified, and positive electrode need be placed in the dielectric cavity (10).In addition, also can utilize highly sensitive electrode group to detect the purity of distilled water and oil respectively.
Below in conjunction with Fig. 3, Fig. 4, Fig. 5 and Fig. 6, will be to Signal Processing, the processes such as control that reach motor of reporting to the police are described below:
Normal operating conditions: at this moment, pump control circuit power switch K closes
6, alarm power switch K closes
1, press motor start switch K
2Make the small-sized device Q that continues
1Connect its normally opened contact respective closed, auxiliary reclay Q
7Connect its normally opened contact closure, motor rotation pilot lamp H
1Show the driven by motor pump work.During normal condition, the anodal A of A electrode group
1Be immersed in the oil A
1A
2Not conducting, T
3Emitter-base bandgap grading is in electronegative potential, not gate IC
2Be output as noble potential, Q
5Disconnect; Equally, the not conducting of B electrode, Q
6Can not connect.At this moment C
21(or C
31) be in electronegative potential, IC
3The output noble potential, time base circuit IC
5, audio manifold block IC
4Do not work.
When membrane ruptures phenomenon one produces, medium solutions such as water or acid, alkali, salt are arranged between electrode, electric conductivity is changed.As left membrane ruptures, A
1A
2Conducting, T
3Emitter-base bandgap grading is in noble potential, not gate IC
2The output electronegative potential, Q
5Conducting, Q
5The normally opened contact closure, warning circuit is connected and generation sound, light are reported to the police, at this moment Q
5Normally closed contact also disconnect, motor is shut down, pilot lamp H
1Extinguish.Because Q
5(or Q
6) connection, make C
21(or C
31) be in noble potential, through IC
3Be output as electronegative potential, at this moment IC
4The sound is sent in work, light emitting diode row T
4At time base circuit IC
5Frequency control under, flash.Because Q
5(or Q
6) connection, make Q
2(Q
3) connect, also make Q
2(Q
3) the normally opened contact closure, make pilot lamp H
2(or H
3) shinny and indicate left barrier film (or right barrier film) to break.
The elimination of sound, light warning and pilot light: press K
4Can make miniature relay Q
4Connect, its normally closed contact disconnects, and cuts off 5 couchers of warning circuit and makes power supply, and sound, light are reported to the police and stopped.Because membrane ruptures or pollution are not excluded, and press K switch
5Can't eliminate H
2Or H
3Pilot light.Have only and more finish changing barrier film, remove and pollute, relay Q
5(or Q
6) just be in off-state, pilot light is disappeared.Start K
3, motor turns round again.
Below be in the present embodiment some elements and title and specification or model:
Code name title specification and model
K
2～K
5Button switch K D
23A/250V
Q
1～Q
6Miniature relay JZX-22F DC24V
T
1, T
2Bridge heap 1A50V
T
1B three terminal regulator 7824
T
2B three terminal regulator 7805
T
3Triode 3DG12
T
4Light emitting diode row 2EFI61
IC
4Audio manifold block
IC
5Time base circuit NE555
IC
1, IC
2, IC
3Not gate UIN2003
The membrane ruptures that the utility model is used for single diaphragm metering pump only adopts one group of electrode pair when reporting to the police.
Claims (4)
1, a kind of volume pump membrane ruptures monitoring alarm, it is characterized in that this device comprises that at least one group of conductance exploring electrode is right, the positive electrode of electrode pair places the hydraulic oil neutralization of volume pump plunger cavity (8) to place the distilled water of hydraulic pressure chamber (9) or place the interior medium of dielectric cavity (10) respectively; Negative electrode connects with the pump housing.
2, device according to claim 1 is characterized in that positive electrode connects with barrier film making sheet (11 or 12), and the part that the barrier film confinement plate contacts with the pump housing is made insulation processing.
3,, it is characterized in that the signal of electrode pair detection takes highly sensitive input mode promptly to pass through T according to claim 1,2 described devices
3The base stage input, through amplifying, oppositely small-sized relay type Q is connected in the back
5
4,, it is characterized in that signal that electrode pair surveys directly after oppositely, connection miniature relay Q according to claim 1,2 described devices
6
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213068 CN2051372U (en) | 1989-07-10 | 1989-07-10 | Diaphragm monitoring warning device for metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213068 CN2051372U (en) | 1989-07-10 | 1989-07-10 | Diaphragm monitoring warning device for metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2051372U true CN2051372U (en) | 1990-01-17 |
Family
ID=4869120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213068 Withdrawn CN2051372U (en) | 1989-07-10 | 1989-07-10 | Diaphragm monitoring warning device for metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2051372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
| CN109990953A (en) * | 2019-03-28 | 2019-07-09 | 昆明理工大学 | A kind of autoclave diaphragm pump diaphragm trouble-shooter and diagnostic method conveying slurry |
| CN111271240A (en) * | 2020-04-02 | 2020-06-12 | 淮安市威力泵业科技有限公司 | Diaphragm type pulse damper and diaphragm breakage alarm device thereof |
-
1989
- 1989-07-10 CN CN 89213068 patent/CN2051372U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
| CN108661891B (en) * | 2018-05-09 | 2019-07-30 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
| CN109990953A (en) * | 2019-03-28 | 2019-07-09 | 昆明理工大学 | A kind of autoclave diaphragm pump diaphragm trouble-shooter and diagnostic method conveying slurry |
| CN111271240A (en) * | 2020-04-02 | 2020-06-12 | 淮安市威力泵业科技有限公司 | Diaphragm type pulse damper and diaphragm breakage alarm device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |