CN202748673U - Pneumoelectric-control volume-variable liquid-volume controlling device - Google Patents
Pneumoelectric-control volume-variable liquid-volume controlling device Download PDFInfo
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- CN202748673U CN202748673U CN 201220151404 CN201220151404U CN202748673U CN 202748673 U CN202748673 U CN 202748673U CN 201220151404 CN201220151404 CN 201220151404 CN 201220151404 U CN201220151404 U CN 201220151404U CN 202748673 U CN202748673 U CN 202748673U
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- tank body
- upper tank
- pneumoelectric
- control device
- drive mechanism
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Abstract
The utility model relates to a pneumoelectric-control volume-variable liquid-volume controlling device which mainly comprises a tank, an isolating membrane, an adjusting disc, an elevating driving mechanism, a controlling unit and a sealing unit, wherein the tank is composed of a lower tank, an upper tank and an upper support case, the isolating membrane is arranged between the lower tank and the upper tank, the support case is fabricated at the upper part of the upper tank, a liquid inflow and outflow opening is arranged at the bottom of the lower tank, a pneumoelectric-control interface is arranged at the sidewall of the upper tank, the adjusting disc is horizontally installed in the upper tank, a seat base fabricated at the top of the adjusting disc is movably mounted on the top of the upper tank, the sealing unit is mounted between the seat base on the top of the adjusting disc and the top of the upper tank, the elevating driving mechanism is fixedly arranged at the upper part of the support case, the lower end of an elevating driving rod of the elevating driving mechanism extends into the support case and is fixedly mounted on the seat base on the top of the adjusting disc, and the elevating driving mechanism is in electrical connection with the controlling unit. According to the utility model, volume is adjusted to realize controlling of liquid volume, conversion between positive pressure and negative pressure is employed for controlling flowing of liquid, and the advantages of accurate controlling, simple and convenient operation and a wide application scope are obtained.
Description
Technical field
The utility model relates to the liquid measure control device, particularly a kind of pneumoelectric control volume variable displacement formula liquid measure control device.
Background technology
In the fields such as medical treatment and chemical industry, often need to control liquid measure.Existing liquid measure control device comprises contact and contactless.Contact liquid measure control device, such as flow sensor, it requires must without solid impurity, could realize comparatively accurately control through the liquid in the sensor in use.But, when specific works, particularly when medical field is used, often can comprise some solid dirts in the body fluid of the liquid measure of flowing through control device, the accuracy that impact is measured and controlled.Contactless volume control device, such as sonac or infrared sensor, it is when work, can't realize separating of detected space internal liquid and gas, because having water vapor in the detected space even on the probe, perhaps there is air pocket in the liquid easily, and causes the out of true of measuring and controlling.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of pneumoelectric control volume variable displacement formula liquid measure control device is provided, and it adopts volume adjusted to realize liquid measure control, adopts air pressure control liquid flow, realization is controlled accurate purpose to the cleaning liquid degree no requirement (NR) in the device of flowing through.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of pneumoelectric control volume variable displacement formula liquid measure control device, it is characterized in that: mainly consisted of by tank body, barrier film, adjustment plate, lift drive mechanism, control module and sealing unit, tank body is made of lower tank, upper tank body and upper support case, between lower tank and upper tank body, barrier film is installed, upper tank body top is shaped with support box, be shaped with liquid entrance in the lower tank bottom surface, be shaped with the gas control interface at the upper tank body sidewall; The adjustment plate level is installed in the upper tank body, and the made dish seat of adjustment plate end face is movably arranged on the upper tank body end face, between the dish seat of adjustment plate end face and the upper tank body end face sealing unit is installed; Be fixedly mounted with lift drive mechanism on support box top, it is inner and be fixedly mounted with the dish seat of adjustment plate end face that support box is stretched in the lifting driving stem lower end of this lift drive mechanism, and lift drive mechanism is electrically connected with control module.
And described sealing unit is grommet type seals.
And, between the dish seat upper surface of the end face inside surface of support box and adjustment plate, the ripple sealing shroud that is set in lifting driving stem outside is installed.
And described lift drive mechanism is linear electric motors.
And, on the top, lifting driving stem top of linear electric motors one photoelectric sensor being installed, this photoelectric sensor is connected to control module.
And, in the lifting driving stem parallel sided of linear electric motors grating sensor being installed, this grating sensor is connected to control module.
And described lift drive mechanism is multiple spot control straight line cylinder.
Advantage of the present utility model and beneficial effect are:
1. this liquid measure control device, adopt barrier film to isolate between lower tank and the upper tank body, liquid enters or discharges from liquid entrance, mutually isolate with upper space, thereby avoid liquid that volume control module and air pressure control module are impacted, realize the cleaning liquid degree no requirement (NR) in the device of flowing through.
2. this liquid measure control device arranges grommet type seals between adjustment plate upper disc seat and upper tank body end face, guarantees that the gaseous tension in the upper tank body does not leak, and guarantees running stability and the reliability of pneumoelectric control module; And, the ripple sealing shroud also is installed in support box, further improve gas tightness in the tank body, also can adapt to simultaneously the lifting action of lifting driving stem, design ingeniously, sealing effectiveness is good.
3. this liquid measure control device, lift drive mechanism can adopt linear electric motors, and it realizes accurate the rising and down maneuver by control module; Lift drive mechanism also can adopt multiple spot control straight line cylinder, also can realize rising or the down maneuver of multi-point under the control of control module, satisfies request for utilization.
4. this liquid measure control device, when adopting linear electric motors as lift drive mechanism, on its top, lifting driving stem top one photoelectric sensor is installed, it can realize the setting of lifting driving stem reference position, so that determine reference value, thereby carry out according to actual needs the volume adjustment.
5. this liquid measure control device, when adopting linear electric motors as lift drive mechanism, by the parallel sided at its lifting driving stem grating sensor is installed, can realize the real-time detection to lifting driving stem shift position, the realization closed loop is accurately controlled, can whether put in place to the action of lifting driving stem simultaneously and detect, avoid the adjustment plate height because the solid matter card is stumbled or equipment failure causes in the tank body inaccurate, improve the security that device uses.
6. liquid measure control device of the present utility model, scientific structure design is reasonable, adopt volume adjusted to realize liquid measure control, adopt positive/negative-pressure conversion control liquid flow, the realization isolation between the liquid and volume control module and air pressure control module in the device of flowing through, thereby realize the purpose to the cleaning liquid degree no requirement (NR) in the device of flowing through, have simultaneously the advantage that control is accurate, easy and simple to handle, the scope of application is extensive.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the another kind of embodiment of the utility model;
Fig. 3 is the structural representation of another embodiment of the utility model.
Description of reference numerals:
1-leading screw, 2-linear electric motors, 3-support box end face, 4-upper support case,
5-ripple sealing shroud, 6-dish seat, 7-grommet type seals, 8-upper tank body end face, 9-adjustment plate,
10-upper tank body, 11-lower tank, 12-barrier film, 13-liquid entrance, 14-gas control interface,
15-control module, 16-photoelectric sensor, 17-multiple spot control straight line cylinder, 18-cylinder bar,
The 19-grating sensor.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of pneumoelectric control volume variable displacement formula liquid measure control device, it mainly is made of tank body, barrier film 12, adjustment plate 9, lift drive mechanism, control module and sealing unit, tank body is made of lower tank 11, upper tank body 10 and upper support case 4, between lower tank and upper tank body, barrier film is installed, lower tank top is shaped with support box, be shaped with liquid entrance 13 in the lower tank bottom surface, be shaped with gas control interface 14 at the upper tank body sidewall; The adjustment plate level is installed in the upper tank body, and the made dish seat 6 of adjustment plate end face is movably arranged on upper tank body end face 8 central authorities, between the dish seat of adjustment plate end face and the upper tank body end face sealing unit is installed, and sealing unit is grommet type seals 7.Be fixedly mounted with lift drive mechanism on support box top, lift drive mechanism is electrically connected with control module 15.It is inner and be fixedly mounted with the dish seat of adjustment plate end face that support box is stretched in the lifting driving stem lower end of this lift drive mechanism, between end face 3 inside surfaces of support box and the dish seat upper surface of adjustment plate the ripple sealing shroud 5 that is set in lifting driving stem outside is installed.By grommet type seals and ripple sealing shroud, guarantee that effectively the gaseous tension in the upper tank body does not leak, guarantee running stability and the reliability of pneumoelectric control module.
Lift drive mechanism is linear electric motors 2 as shown in fig. 1.Leading screw 1 at linear electric motors is the lifting driving stem, and leading screw lower end and adjustment plate end face dish seat are fixedly mounted with.Adopt linear electric motors as lift drive mechanism, can realize accurate the rising and down maneuver, have preferably accuracy and controllability.On top, lifting driving stem top one photoelectric sensor 16 is installed, this photoelectric sensor is connected to control module.It can realize the setting of lifting driving stem reference position, so that determine reference value, thus carry out according to actual needs the volume adjustment.Perhaps can grating sensor 19 be installed in the lifting driving stem parallel sided of linear electric motors, this grating sensor is connected to control module.As shown in Figure 3.
As shown in Figure 2, lift drive mechanism is multiple spot control straight line cylinder 17.The cylinder bar 18 of multiple spot control straight line cylinder is the lifting driving stem, and cylinder bar lower end and adjustment plate end face dish seat are fixedly mounted with.Also can realize rising or the down maneuver of multi-point, satisfy request for utilization.Lift drive mechanism also can be replaced by other mechanisms that can realize elevating function.
The principle of work of this pneumoelectric control volume variable displacement formula liquid measure control device is:
The liquid entrance of the lower tank of this control device connects feed tube and drain pipe, and retaining valve all is installed on feed tube and drain pipe, avoids liquid backflow; The pneumoelectric control interface of upper tank body connects the pneumoelectric control module, is used for forming in upper tank body malleation or negative pressure; Lift drive mechanism can be controlled adjustment plate and carry out lifting action.
During work, by the action of control module control lift drive mechanism, regulate adjustment plate height of living in according to setting value, barrier film can upwards float entering under the liquid effects of lower tank, and fits in the adjustment plate lower surface, as seen, the space of adjustment plate bottom, namely this moment liquid volume.After adjusting volume, open the pneumoelectric control module, at first passing into negative pressure in the upper tank body, finish the imbibition action; Then pass into malleation, finish the discharge opeing action.
Liquid volume in this liquid measure control device, access to plant and the liquid volume of discharge are in full accord, have effectively guaranteed measurement and the control accuracy of liquid measure.This liquid measure control device can be used for the control that paunch flusher or liquid load in mixture flow.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the utility model and claims, various replacements, variation and modification all are possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (7)
1. a pneumoelectric is controlled volume variable displacement formula liquid measure control device, it is characterized in that: mainly consisted of by tank body, barrier film, adjustment plate, lift drive mechanism, control module and sealing unit, tank body is made of lower tank, upper tank body and upper support case, between lower tank and upper tank body, barrier film is installed, upper tank body top is shaped with support box, be shaped with liquid entrance in the lower tank bottom surface, be shaped with the gas control interface at the upper tank body sidewall; The adjustment plate level is installed in the upper tank body, and the made dish seat of adjustment plate end face is movably arranged on the upper tank body end face, between the dish seat of adjustment plate end face and the upper tank body end face sealing unit is installed; Be fixedly mounted with lift drive mechanism on support box top, it is inner and be fixedly mounted with the dish seat of adjustment plate end face that support box is stretched in the lifting driving stem lower end of this lift drive mechanism, and lift drive mechanism is electrically connected with control module.
2. pneumoelectric according to claim 1 is controlled volume variable displacement formula liquid measure control device, and it is characterized in that: described sealing unit is grommet type seals.
3. pneumoelectric according to claim 1 control volume variable displacement formula liquid measure control device is characterized in that: between the dish seat upper surface of the end face inside surface of support box and adjustment plate the ripple sealing shroud that is set in lifting driving stem outside is installed.
4. pneumoelectric according to claim 1 is controlled volume variable displacement formula liquid measure control device, and it is characterized in that: described lift drive mechanism is linear electric motors.
5. pneumoelectric according to claim 4 is controlled volume variable displacement formula liquid measure control device, and it is characterized in that: the top, lifting driving stem top at linear electric motors is equipped with a photoelectric sensor, and this photoelectric sensor is connected to control module.
6. pneumoelectric according to claim 4 is controlled volume variable displacement formula liquid measure control device, and it is characterized in that: the lifting driving stem parallel sided at linear electric motors is equipped with grating sensor, and this grating sensor is connected to control module.
7. pneumoelectric according to claim 1 is controlled volume variable displacement formula liquid measure control device, it is characterized in that: described lift drive mechanism is multiple spot control straight line cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151404 CN202748673U (en) | 2012-04-12 | 2012-04-12 | Pneumoelectric-control volume-variable liquid-volume controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151404 CN202748673U (en) | 2012-04-12 | 2012-04-12 | Pneumoelectric-control volume-variable liquid-volume controlling device |
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| Publication Number | Publication Date |
|---|---|
| CN202748673U true CN202748673U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220151404 Withdrawn - After Issue CN202748673U (en) | 2012-04-12 | 2012-04-12 | Pneumoelectric-control volume-variable liquid-volume controlling device |
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| CN (1) | CN202748673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645934A (en) * | 2012-04-12 | 2012-08-22 | 天津市同业科技发展有限公司 | Pneumatic-electric-control volume-variable type amount of liquid control device |
-
2012
- 2012-04-12 CN CN 201220151404 patent/CN202748673U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645934A (en) * | 2012-04-12 | 2012-08-22 | 天津市同业科技发展有限公司 | Pneumatic-electric-control volume-variable type amount of liquid control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130220 Effective date of abandoning: 20140702 |
|
| RGAV | Abandon patent right to avoid regrant |