CN87102727A - A kind of computer-controlled metering pump - Google Patents
A kind of computer-controlled metering pump Download PDFInfo
- Publication number
- CN87102727A CN87102727A CN87102727.5A CN87102727A CN87102727A CN 87102727 A CN87102727 A CN 87102727A CN 87102727 A CN87102727 A CN 87102727A CN 87102727 A CN87102727 A CN 87102727A
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- China
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- barrier film
- computer
- metering pump
- pump
- plunger pump
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Abstract
The invention provides a kind of computer-controlled acid, alkali lye metering, feedway.This device is by motor, speed reducer, with the plunger pump of anti-corrosion tubular ripple barrier film, and the valve of band buffer is formed.Computer acquisition photoelectric sensing pulsed quantity is for calculating base value.The action of control plunger pump realizes the autoweighing conveying, and package unit is corrosion-resistant, precision is high.
Description
The present invention relates to a kind of liquid meter, feedway, particularly computer-controlled hydrochloric acid metering pump.
Acid such as technical hydrochloric acid, alkali lye have very strong corrosivity, for accurate measurement and safe transport, require to carry the leakage that good corrosion resistance is arranged and stop all forms with measuring apparatus.
Existing acid, general use traffic meter of the dynamic measuring of alkali lye or metering pump.The sulfuric acid measuring apparatus and the nitric acid measuring apparatus of domestic existing such as Wuhan City Materials Bureau can measure corrosive liquids, but the sensor that is adopted is (as flow transducer, electromagnetic sensors etc.) error in dipping is big, precision is not high, and lacking supporting leak free transfer pump, environmental pollution is difficult to avoid.The metering pumps such as " S of Fuji types " that state's pharmacy such as Japan, Switzerland, paper industry use mostly is the manual tune flow, or precision is low or flow is little.Therefore, can accurate measurement, carry the big capacity measurement pump of the extremely strong hydrochloric acid of corrosivity still to belong to blank.
The purpose of this invention is to provide a kind of corrosion-resistant, do not have to leak, hydrochloric acid autoweighing feedway that precision is high.
Technological points of the present invention is: 1, improve the positive displacement plunger pump.The tubular ripple flexible partition of a band of device " guide mechanism in the straight line " is carried hydrochloric acid solution in the plunger case of pump." straight line in guide mechanism " can guarantee barrier film straight line motion reposefully in plunger case, and distortion evenly, inside and outside wall all do not have the machinery friction; 2, in the outlet of metering pump valve a buffer that is made of tubular ripple flexible partition and can regulate precompression spring is installed,, is improved the measuring accuracy of pump to reduce the flow pulse amplitude of plunger pump; 3, serve as to calculate base value with Charge Coupled Device spare acquisition pulse amount, control the conveying and the metering of acid solution by Computer Processing, and show, print acid solution pin, poke amount and consumption sum etc.; 4, for fear of the corrosion of acid solution to bodies such as plunger pumps, the lining of tubular ripple flexible partition, plunger pump and pump cover is all made with polytetrafluoroethylmaterial material.
Narrate the present invention below in conjunction with accompanying drawing:
Fig. 1 is the transmission control principle figure of embodiment of the invention hydrochloric acid metering pump.
Fig. 2 is plunger membrance " guide mechanism in a straight line " schematic representation.
Fig. 3 is the buffer schematic representation.
Fig. 4 is a hydrochloric acid metering pump photoelectricity sampling electrical schematic diagram.
With reference to Fig. 1. plunger pump 7 power are provided by motor 2, after speed reducer 5 slows down, become by intersecting slide way mechanism 6 that transhipment is moving be the straight reciprocating motion of plunger again, and valve 8 is connected with plunger pump 7, and the acid solution that exports discharge from valve 8 is exported through buffer 9.Computer 1 is gathered the pulsed quantity of photoelectric sensor 3 for calculating base value, umber of pulse is converted to the kilogram number of the acid solution of plunger pump 7 conveyings.
Conversion formula: (nd * 100)/(Ai * 100)=kg
N-umber of pulse d-proportion Ai-constant
The test formula of Ai is in the formula:
Numerical value, the n-testing time generally gets 10)
Computer 1 is by Output Interface Control motor 2, the action of break 4 and plunger pump 7.Simultaneously, print, show nitre, poke and the remaining sum etc. of acid solution by printer, display device.
With reference to figure two, a flexible anti-corrosion barrier film of being made by polytetrafluoroethylmaterial material 11 of tubular ripple is housed in the plunger case of plunger pump, the interior guide mechanism of straight line of an assurance barrier film 11 easy motions is arranged between barrier film 11 and the plunger 13.This mechanism is made up of supporting sleeve 22 and guide sleeve 12, and guide sleeve 12 is connected with barrier film 11, supporting sleeve 22 is connected with pump seat, is filled with lubricant oil in the diaphragm cavity 14.Barrier film 11 inside and outside walls all do not have the machinery friction.On guide sleeve 12 and supporting sleeve 22, have a plurality of vertical slotted eyes, to reduce the resistance to motion of fluid in diaphragm cavity 14.The lining 10 of plunger case and pump cover is polytetrafluoroethylmaterial material and makes, can prevent effectively acid solution to the erosion of pump, stop acid liquor leakage.
With reference to figure three, the import 15 of buffer is connected with the outlet of valve.Form one with the tubular ripple barrier film 19 that polytetrafluoroethylmaterial material is made with can regulate precompression spring 20, the acid solution flow pulsation value that plunger pump is discharged is reduced to below 15%, significantly improves the service behaviour and the metering accuracy of pump.
Computer 1 adopts TP80-1 type single board computer or its compatible, and software has 13 functional block programs and a printout format program.Print What comprises marketing unit's title, quantity in stock, sales volume, unit price, total price and date etc.
Computer is provided with seven function keys, and input interface is connected with photoelectric sensor 3.With reference to figure four, BG2 is the photoelectricity assembling device in the photoelectric sampling circuit, and output terminal advances computer.Usually, start photoelectricity assembling device BG2 and adopt software, (during initialization, allow the A output low level, the rising of 05 output terminal level, photoelectricity assembling device are ended), and the present invention is at hardware 05(inverter output terminal) go up the resistance of raising level that increases resistance 68 Ω, can guarantee the coil proper functioning.
Embodiments of the invention hydrochloric acid autoweighing transfer pump solved effectively acid solution run, drip, leak, stopped environmental pollution; Adopt computer control, autoweighing, valuation, demonstration and printing, easy to use; Capacity reaches per hour 8 tons, and error in dipping is 0.68%.
Claims (4)
1, a kind of metering pump of being made up of motor, speed reducer, plunger pump, valve and control mechanism is characterized in that having in the said plunger pump tubular ripple barrier film.This barrier film is connected with pump seat by " guide mechanism in the straight line " that is made of supporting sleeve and guide sleeve.
2, the buffer that metering pump according to claim 1, the outlet that it is characterized in that said valve have tubular ripple barrier film and adjustable spring to constitute.
3, metering pump according to claim 1 and 2 is characterized in that having increased the resistance that can raise the inverter output terminal level that links to each other with the photoelectricity assembling device in the computer processing system of said control mechanism.
4, metering pump according to claim 1 and 2, the material that it is characterized in that said tubular ripple barrier film is the F4(teflon).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102727.5A CN1006174B (en) | 1987-04-11 | 1987-04-11 | Computer controlled metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102727.5A CN1006174B (en) | 1987-04-11 | 1987-04-11 | Computer controlled metering pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102727A true CN87102727A (en) | 1988-11-02 |
| CN1006174B CN1006174B (en) | 1989-12-20 |
Family
ID=4814087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87102727.5A Expired CN1006174B (en) | 1987-04-11 | 1987-04-11 | Computer controlled metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006174B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821706A (en) * | 2014-02-26 | 2014-05-28 | 苏州市玄天环保科技有限公司 | Method for controlling flow of peristaltic pump accurately by means of gear motor |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN105411472A (en) * | 2015-12-24 | 2016-03-23 | 宁波工程学院 | Two-sided window wiper |
| CN105476540A (en) * | 2015-12-24 | 2016-04-13 | 宁波工程学院 | Double-side glass wiper |
-
1987
- 1987-04-11 CN CN87102727.5A patent/CN1006174B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821706A (en) * | 2014-02-26 | 2014-05-28 | 苏州市玄天环保科技有限公司 | Method for controlling flow of peristaltic pump accurately by means of gear motor |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN104931719B (en) * | 2014-03-20 | 2018-06-08 | 浙江海峰制鞋设备有限公司 | A kind of mixed method of the hybrid system of multigroup material |
| CN105411472A (en) * | 2015-12-24 | 2016-03-23 | 宁波工程学院 | Two-sided window wiper |
| CN105476540A (en) * | 2015-12-24 | 2016-04-13 | 宁波工程学院 | Double-side glass wiper |
| CN105411472B (en) * | 2015-12-24 | 2018-02-23 | 宁波工程学院 | Two-sided window is wiped |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1006174B (en) | 1989-12-20 |
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