CN2279640Y - Automatic adding device for liquid by immersion and discharge method - Google Patents
Automatic adding device for liquid by immersion and discharge method Download PDFInfo
- Publication number
- CN2279640Y CN2279640Y CN 96240675 CN96240675U CN2279640Y CN 2279640 Y CN2279640 Y CN 2279640Y CN 96240675 CN96240675 CN 96240675 CN 96240675 U CN96240675 U CN 96240675U CN 2279640 Y CN2279640 Y CN 2279640Y
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Abstract
The utility model relates to an automatic adding device for liquid, which adopts the methods of immersion and discharge. The utility model is composed of a valve, a temporary storage device for liquid, a control circuit and a plunger pusher, wherein the plunger pusher of the utility model is composed of a control motor, a screw rod and a plunger; the control end of the control motor is connected to the control circuit; one end of the screw rod is fixed on the plunger, and the other end of the screw rod is connected with the control motor in a coaxial way. The utility model has the advantages of reasonable design, simple structure, low cost and strong reliability. In addition, automatic control and anticorrosion treatment are easily realized, the control precision to the addition amount of liquid is high, and the addition amount is changed conveniently with large range. The utility model is especially suitable for automatically adding various kinds of physic liquid of an automatic medicine adding device used in an oil field.
Description
The utility model relates to the automatic adding set of liquid, particularly relates to accurate interpolation small amount of liquid device.
At present, the small amount of liquid adding set of use mostly adopts ram pump.This device volume is big, the cost height, and poor reliability, the control accuracy of liquid addition is not high.In addition, ram pump is to frequent change liquid addition inconvenience, and it is not suitable for the interpolation of corrosive liquids.
The purpose of this utility model is to provide a kind of control accuracy height of liquid addition, and the change of addition is convenient, the automatic adding set of the liquid that the change scope is big.
For reaching above-mentioned purpose, the utility model adopts a kind of immersion to discharge the automatic adding set of method liquid, and it is by valve, the liquid working storage, and control circuit and plunger thruster constitute.Said immersion discharge method is meant object is immersed when filling with the container of liquid that liquid is with a kind of method of flow container.Said liquid working storage is temporarily deposited liquid.In the bottom, it with the valve of control input fluid flow between be communicated with by pipeline; It is communicated with output channel by delivery outlet at the middle part.In the liquid working storage level electrode is housed, the output terminal of level electrode and valve is connected on the control circuit, and they control replenishing liquid in the liquid working storage together.Said plunger thruster is by the control motor, and leading screw and plunger are formed.The control end of control motor is connected on the control circuit.One end of leading screw is fixed on the plunger, and the other end is connected with the control motor coaxle.When the control motor rotates, drive leading screw and plunger precession together, plunger is immersed in the liquid, cause liquid level rising in the liquid working storage, the liquid that exceeds delivery outlet flows out through output channel, realizes the interpolation to liquid.
The utility model has the advantages that:
(1) reasonable in design simple in structure, cost is low, and good reliability is easy to realize control and preservative treatment automatically.
(2) to the control accuracy height of liquid addition, the change of addition is convenient, and the change scope is big.
Below in conjunction with accompanying drawing the technical solution of the utility model is further described.
Fig. 1 is the structural representation that the utility model immerses the automatic adding set of discharge method liquid;
Fig. 2 is a control circuit synoptic diagram of the present utility model.The following describes embodiment of the present utility model:
As shown in Figure 1, the utility model immerses the automatic adding set of discharge method liquid by valve 1, liquid working storage 2, and control circuit 3 and plunger thruster 4 constitute.Said liquid working storage 2 is temporarily deposited liquid.Bottom again, it with the valve 1 of control input fluid flow between be communicated with by pipeline 5; At the middle part, it is communicated with output channel 7 by delivery outlet 6.Said valve 1 is a kind of electric control valve, for example solenoid valve or electrical ball valve.Level electrode 8 is housed in the liquid working storage 2, and it is a tinsel, and its end and delivery outlet 6 bottoms are on same surface level.The output terminal of level electrode and valve all is connected on the control circuit 3, and they control replenishing amount of liquid in the liquid working storage 2 together.Said plunger thruster 4 is by control motor 9, and leading screw 10 and plunger 11 are formed.Control motor 9 is stepper motors, and its control end is connected on the control circuit 3.Leading screw 10 1 ends are fixed on the plunger 11, the other end and control 9 coaxial connections of motor.The angle of rake central axis 12 of plunger overlaps with the central axis 13 of liquid working storage.When control motor 9 rotates, drive leading screw 10 and plunger 11 precession together, plunger 11 is immersed in the liquid, cause liquid level rising in the liquid working storage 2, the liquid that exceeds delivery outlet 6 relies on pressure reduction to flow out to through output channel 7 needs to add the liquid place, realizes the automatic interpolation to liquid.
As shown in Figure 2, the principle of work of the utility model control circuit 3 is as follows: standard time clock generator 14 sends the standard time clock pulse, delivers to frequency dividing circuit 15 and prescaler 16 respectively.Through the high speed reverse rotation pulse signal that frequency dividing circuit 15 frequency divisions produce, deliver to electronic switch 17.This high speed reverse rotation pulse signal is delivered to control motor 9 through electronic switch 17 and pulse distribution and driver 18, makes the counter-rotating of control motor, drives plunger 11 and is returned to initial position.Produce the main story pulse signal through prescaler 16 frequency divisions, this pulse signal is corresponding with the addition that sets, and promptly sets the main story pulse signal of certain addition with regard to a corresponding corresponding frequencies.It delivers to electronic switch 17, delivers to control motor 9 through pulse distribution and driver 18, makes control motor main story, drives plunger 8 precession.The effect of electronic switch 17 is to switch high speed reverse rotation pulse signal and main story pulse signal according to the control signal of counter 19 and electrode decision circuitry 20.The counter control signal that the liquid level signal sum counter that 20 pairs of level electrodes 8 of electrode decision circuitry are sent back to sends is analyzed, is judged, send the control signal of electrode decision circuitry for electronic switch 17, the state of control electronic switch, send control signal, the on off state of by-pass valve control 1 for simultaneously valve driving circuit 21.
The utility model immerse the automatic adding set of discharge method liquid to the interpolation of liquid be approximate continuity carry out in a liquid adds cycle Δ T, will finish replenishing and two processes are added in the output of liquid to liquid in the liquid working storage 2.When the utility model has just been started working, on the lower surface of plunger 11 and the same again surface level of level electrode 8 ends.Control circuit 3 Open valves 1, liquid relies in the pressure reduction influent working storage 2 through valve 1.When liquid level was with level electrode 8 terminal contacts in the liquid working storage 2, control circuit 3 valve-offs 1 were finished the additional process to liquid in the liquid working storage 2, and the used time is Δ T
1When valve 1 was closed, control circuit 3 rotated control motor 9, drives leading screw 10 and plunger 11 precession, and plunger 11 is immersed in the liquid, and process is added in the output of beginning liquid.The used time of this process is Δ T
2The leading screw 10 at the uniform velocity precession distance of advancing in output interpolation process is L, thereby the degree of depth that plunger 11 immerses liquid also is L.The sectional area of plunger is Δ S, and the volume that adds liquid in the Δ T cycle is L Δ S.So leading screw 10 paces are L/ Δ T
2, average liquid addition is L Δ S/ Δ T in the unit interval.Liquid replenishes in the process in to liquid working storage 2 in the next liquid interpolation cycle, and control circuit 3 is Open valve 1 on the one hand, gives liquid working storage 2 liquid make-up; Make plunger thruster 4 do return motion on the other hand.At Δ T
1In time, the lower surface of plunger 11 get back to level electrode 8 on same surface level.The angle of rake answer speed of plunger should be greater than 2L/ Δ T
1Other operation is identical with first cycle.The liquid that carries out other cycle according to this adds.Liquid make-up time Δ T in the controlling liquid working storage 2
1Size, make it to satisfy Δ T＞＞Δ T
1, so the utility model carries out basically continuously to the interpolation of liquid.If use two cover the utility model simultaneously, can obtain the strict of liquid added continuously.In addition,, can change the volume that plunger 11 immerses liquid, also just change the addition of liquid in the unit interval by changing the rotating speed of control motor 9.Thereby the utility model is convenient to the change of liquid addition, and the change scope is big.The sectional area of plunger 11 of the present utility model is slightly smaller than the sectional area of liquid working storage 2, so plunger 11 is when immersing in the liquid working storages 2 the liquid sub-fraction, and liquid level will rise very high in the liquid working storage.So the utility model is to the control accuracy height of liquid addition.
Said plunger 11 and liquid working storage 2 are by the glass material preparation, and valve 1 and all connecting tubes all adopt preservative treatment, thereby have guaranteed that the utility model also is applicable to the interpolation of corrosive liquids, has improved reliability of the present utility model and durability.
Claims (3)
1. one kind immerses the automatic adding set of discharge method liquid, by valve (1), liquid working storage (2), control circuit (3) and plunger thruster (4) constitute, it is characterized in that: be communicated with by pipeline (5) between liquid working storage (2) and the valve (1), liquid working storage (2) is communicated with output channel (7) by delivery outlet (6), level electrode (8) is housed in the liquid working storage (2), the output terminal of level electrode (8) and valve (1) is connected on the control circuit (3), plunger thruster (4) is by control motor (9), leading screw (10) and plunger (11) are formed, the control end of control motor (9) is connected on the control circuit (3), one end of leading screw (10) is fixed on the plunger (11), the other end and control coaxial connection of motor (9).
2. the automatic adding set of method liquid is discharged in immersion according to claim 1, it is characterized in that: the central axis (12) of plunger thruster (4) overlaps with the central axis (13) of liquid working storage (2), leading screw (10) and plunger (11) precession together, by control motor (9) control, the liquid that exceeds delivery outlet (6) in the liquid working storage (2) flows out through output channel (7).
3. the automatic adding set of method liquid is discharged in immersion according to claim 1 and 2, it is characterized in that: the bottom of the end of level electrode (8) and delivery outlet (6) is on same surface level, and level electrode (8) is controlled replenishing liquid in the liquid working storage (2) with valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240675 CN2279640Y (en) | 1996-09-22 | 1996-09-22 | Automatic adding device for liquid by immersion and discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240675 CN2279640Y (en) | 1996-09-22 | 1996-09-22 | Automatic adding device for liquid by immersion and discharge method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2279640Y true CN2279640Y (en) | 1998-04-22 |
Family
ID=33915275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96240675 Expired - Fee Related CN2279640Y (en) | 1996-09-22 | 1996-09-22 | Automatic adding device for liquid by immersion and discharge method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2279640Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880207A (en) * | 2011-07-13 | 2013-01-16 | 张中杰 | Apparatus for stably regulating liquid level of high constant temperature liquid |
| CN107610875A (en) * | 2017-10-31 | 2018-01-19 | 上海联影医疗科技有限公司 | Magnetic resonance system, superconducting magnet system and its low temperature holding meanss |
| CN109085860A (en) * | 2018-09-29 | 2018-12-25 | 深圳市亚辉龙生物科技股份有限公司 | Liquid supply device and detection device |
| US11187381B2 (en) | 2017-09-29 | 2021-11-30 | Shanghai United Imaging Healthcare Co., Ltd. | Cryostat devices for magnetic resonance imaging and methods for making |
-
1996
- 1996-09-22 CN CN 96240675 patent/CN2279640Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880207A (en) * | 2011-07-13 | 2013-01-16 | 张中杰 | Apparatus for stably regulating liquid level of high constant temperature liquid |
| US11187381B2 (en) | 2017-09-29 | 2021-11-30 | Shanghai United Imaging Healthcare Co., Ltd. | Cryostat devices for magnetic resonance imaging and methods for making |
| CN107610875A (en) * | 2017-10-31 | 2018-01-19 | 上海联影医疗科技有限公司 | Magnetic resonance system, superconducting magnet system and its low temperature holding meanss |
| CN107610875B (en) * | 2017-10-31 | 2020-02-11 | 上海联影医疗科技有限公司 | Magnetic resonance system, superconducting magnet system and low temperature holding device thereof |
| CN109085860A (en) * | 2018-09-29 | 2018-12-25 | 深圳市亚辉龙生物科技股份有限公司 | Liquid supply device and detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |