CN201187427Y - Ceramic piston pump - Google Patents
Ceramic piston pump Download PDFInfo
- Publication number
- CN201187427Y CN201187427Y CNU2007201705378U CN200720170537U CN201187427Y CN 201187427 Y CN201187427 Y CN 201187427Y CN U2007201705378 U CNU2007201705378 U CN U2007201705378U CN 200720170537 U CN200720170537 U CN 200720170537U CN 201187427 Y CN201187427 Y CN 201187427Y
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- CN
- China
- Prior art keywords
- ceramic piston
- piston
- ceramic
- stepper motor
- pump
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- Expired - Lifetime
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Abstract
The utility model relates to a ceramic piston pump, which comprises a piston device, a drive mechanism and a power installation; a ceramic piston sleeve, a ceramic piston, a concave type obturating ring, a liquid leakage hole and a port for entering and outgoing are arranged on the piston device; limit sensors are arranged at two ends of a threaded rod, a drive sleeve and a pump barrel respectively, and arranged in the drive mechanism; the power installation comprises a stepping motor with high positioning accuracy and a speed change knot connected with the stepping motor. The ceramic piston pump provides reagent drive to an on-line flow-injection monitoring instrument efficiently and stably, and has the advantages of high pressure tolerance, corrosion resistance, low energy consumption, low cost, low noise, small volume, light weight, high precision for pressure control, long-term continuous operation, etc.
Description
Technical field
The utility model relates to a kind of liquid conveyor piston pump that high pressure, constant current are provided, especially a kind of Ceramic piston pump.
Background technique
In environmental protection, in the water quality monitoring field, YX-CODcr analyzes the K of usefulness
2Cr
2O
7-H
2SO
4Reagent, have strong oxidability and corrosivity, have only seldom several not react in the common used material, in the test that instrument development is done various pumps with it, even use best on the market anti-corrosive pump, also be difficult to satisfy high pressure, constant current, corrosion resistant requirement; The jewel pump that has phase chromatography-use only can reach the constant voltage requirement, but the jewel one-way valve in the jewel pump requires very high to the degree of purity of test solution, too responsive to the filth in the liquid, in actual motion, easily leak because of contamination, cause pump pressure reduction and flow non-constant, parts of stainless steel can react with reagent in addition, has not only corroded element, and has caused the deviation of survey data.
Summary of the invention
In order to solve the conventional chemical reagent pump in high pressure, constant current, deficiency aspect corrosion-resistant, the utility model aims to provide a kind of Ceramic piston pump, this pump can well adapt to high pressure, constant current, corrosion resistant service condition, also has leakage preventer, no easily damaged parts simultaneously.
For achieving the above object, the utility model comprises: piston apparatus, transmission device and power plant.Piston apparatus is provided with Ceramic piston cover, Ceramic piston, matrix seal ring, a liquid-leaking nozzle and import and export; Be provided with screw rod, drive sleeve and two ends in the transmission device pump case of a limit sensors respectively is housed; Power plant are the speed change joint that a stepper motor and links to each other with stepper motor.Basic working modes is: Ceramic piston links to each other with screw rod, and screw rod links to each other with the speed change joint by drive sleeve, and the speed change joint links to each other with stepper motor.Stepper motor is regulated speed by the speed change joint and is come drive screw, and screw rod drives Ceramic piston simultaneously in piston sleeve, does moving back and forth, and Ceramic piston via import and export, is finished the suction or the output of liquid in movement process.The Stroke Control of Ceramic piston in piston sleeve, the signal that is sent by the limit sensors in the pump case is controlled stepper motor and to be realized.
Of the present utility model being characterised in that: critical component Ceramic piston and Ceramic piston cover in the described piston apparatus are by ceramic making, can carry various corrosive liquids.
Feature of the present utility model also is, adopts the sealing of matrix seal ring in the described piston apparatus between Ceramic piston and the Ceramic piston cover, has the double-layer seal effect.
Feature of the present utility model also is: in the described piston apparatus, be provided with a liquid-leaking nozzle in the groove of putting the matrix circle, can connect waste liquid bottle, guarantee also can not produce corrosion to other element just in case have under the situation of leakage.
Another feature of the present utility model is: in the pump case in the described transmission device, a limit sensors respectively is equipped with at two ends, in the reciprocating motion of the pistons process, when advancing to certain position, to be experienced by the limit sensors of an end, limit sensors sends signal controling stepping motor, and Ceramic piston is not moved on; When Ceramic piston is backwards to certain position, can be experienced by the limit sensors of the other end equally, limit sensors sends signal controling stepping motor, makes Ceramic piston not continue to fall back.Thereby realized the effective travel of Ceramic piston.
Another feature of the present utility model also is: a stepper motor is arranged in the described power plant, promote seesawing of Ceramic piston by rotating and reverse of control step motor, can realize suction or output to liquid.And change the stepper motor step angle by pulse signal, can make and pump mouth of a river pipeline pressure and remain on the setting value.While is owing to the Location accuracy height of stepper motor, so can guarantee that the pressure adjustment is level and smooth, stable and precision is high.
The employing the beneficial effects of the utility model are: because direct Ceramic piston that contacts with liquid and ceramic pump block adopt corrosion resistant stupalith to make and have the spill seal ring to seal and the liquid-leaking nozzle leakproof, so this device long service life, and can not influence survey data because of material and liquid reactions; Owing to adopted the high stepper motor of Location accuracy to do power, thus this device pressure controling precision height, can be efficiently, stably provide the reagent driving for flow injection on-line monitoring instrument.In addition this device also have that energy consumption is low, noise is low, volume is little, in light weight, can long-term continuous operation etc. advantage.
The purpose of this utility model, feature and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
Description of drawings
Fig. 1 is the utility model embodiment's Ceramic piston pump structure figure;
Fig. 2 is the utility model embodiment's a structure principle chart;
Fig. 3 is an electrical schematic diagram of the present utility model.
Among the figure: 1, ceramic pump block; 2, Ceramic piston; 3, pump case; 4, screw rod; 5, drive sleeve; 6, speed change joint; 7, stepper motor; 8, limit sensors; 9, one-way valve; 10, reagent bottle; 11, pressure transducer; 12, import and export; 13, matrix seal ring; 14, liquid-leaking nozzle; 15, leakage bottle.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, the utility model Ceramic piston pump comprises: piston apparatus, transmission device and power plant.Piston apparatus is provided with Ceramic piston cover 1, Ceramic piston 2, matrix seal ring 13, a liquid-leaking nozzle 14 and import and export 12; Be provided with screw rod 4, drive sleeve 5 and two ends in the transmission device pump case 3 of a limit sensors 8 respectively is housed; Power plant are the speed change joint 6 that a stepper motor 7 and links to each other with stepper motor 7.
Described Ceramic piston 2 links to each other with screw rod 4, and screw rod 4 links to each other by drive sleeve 5 and speed change joint 6, and speed change saves 6 and links to each other with stepper motor 7.Stepper motor 7 is regulated speed by speed change joint 6 and is come drive screw 4, and screw rod 4 drives Ceramic piston 2 simultaneously in Ceramic piston cover 1, does moving back and forth, and Ceramic piston 2 via importing and exporting 12, is finished the suction or the output of liquid in movement process.
With reference to Fig. 2 and Fig. 3, the intake-outlet 12 of the Ceramic piston pump of telling links to each other with one-way valve 9; One-way valve 9 can automatically switch and connect reagent bottle 10 or indusion tube, and the transfusion tube edge is provided with pressure transducer 11; Be provided with liquid-leaking nozzle 14 in the groove of Ceramic piston pump and can connect bottle 15 in the dead of night.
Described Ceramic piston pump is when moving back journey, and the counter-rotating of PLC control step motor drives Ceramic piston and advances backward, and one-way valve 9 automaticallyes switch and is communicated with reagent bottle 10, draws reagent to ceramic pump block 1; When Ceramic piston 2 falls back on certain position, the limit sensors 8 of ends sends limit signal to PLC in the pump case 3, PLC control step motor 7 is just changeing, driving Ceramic piston 2 advances forward, this moment, one-way valve 9 automatic switchovers linked to each other with indusion tube, Ceramic piston 2 is carried reagent in indusion tube, the pressure that the pressure transducer 11 of transfusion tube edge is being experienced in the indusion tube constantly, and the pressure experience signal passed to PLC, the limit sensors 8 of the other end sends limit signal to PLC in the pump case 3 when Ceramic piston 2 advances to certain position forward, PLC is in conjunction with limit signal and pressure experience signal, come the control step motor to adjust step angle, carry out next reciprocating action or stop the pressure in indusion tube, carry the requirement that reaches setting with reagent.The utility model has just been realized high pressure, constant current, corrosion resistant beneficial effect like this.
Obviously, the foregoing description only supplies the usefulness of explanation the utility model, and is not to restriction of the present utility model, and the variation that the those of ordinary skill in relevant technologies field is made in the corresponding techniques field according to the utility model should belong to protection category of the present utility model.
Claims (5)
1, a kind of Ceramic piston pump, comprise: piston apparatus, transmission device and power plant is characterized in that: described piston apparatus is provided with Ceramic piston cover (1), Ceramic piston (2), matrix seal ring (13), a liquid-leaking nozzle (14) and import and export (12); Be provided with screw rod (4), drive sleeve (5) and two ends in the described transmission device pump case (3) of a limit sensors (8) respectively is housed; Described power plant are the speed change joint (6) that a stepper motor (7) and links to each other with stepper motor (7); Described Ceramic piston (2) links to each other with screw rod (4), and screw rod (4) links to each other with speed change joint (6) by drive sleeve (5), and speed change joint (6) links to each other with stepper motor (7); Stepper motor (7) is regulated drive screw (4) by speed change joint (6), screw rod (4) drives Ceramic piston (2) simultaneously and does in Ceramic piston cover (1) and move back and forth, Ceramic piston (2) in movement process via importing and exporting (12), finish the suction or the output of liquid, limit sensors (8) in the pump case (3) sends control signal to stepper motor (7), controls the stroke of Ceramic piston (2) by stepper motor (7).
2, a kind of Ceramic piston pump according to claim 1 is characterized in that: critical component Ceramic piston (2) and Ceramic piston cover (1) in the piston apparatus are by ceramic making.
3, a kind of Ceramic piston pump according to claim 1 is characterized in that: in the pump case in the transmission device (3), a limit sensors (8) respectively is equipped with at two ends.
4, a kind of Ceramic piston pump according to claim 1 is characterized in that: with matrix seal ring (13) sealing, put in the groove of matrix seal ring (13) and be provided with liquid-leaking nozzle (14) between Ceramic piston in the piston apparatus (2) and the Ceramic piston cover (1).
5, a kind of Ceramic piston pump according to claim 1 is characterized in that: its power plant have adopted the high stepper motor of Location accuracy (7) to do power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201705378U CN201187427Y (en) | 2007-11-02 | 2007-11-02 | Ceramic piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201705378U CN201187427Y (en) | 2007-11-02 | 2007-11-02 | Ceramic piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187427Y true CN201187427Y (en) | 2009-01-28 |
Family
ID=40310448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201705378U Expired - Lifetime CN201187427Y (en) | 2007-11-02 | 2007-11-02 | Ceramic piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187427Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297106A (en) * | 2011-08-26 | 2011-12-28 | 张意 | Novel sloped disk type constant-delivery oil pump |
| CN105752107A (en) * | 2016-03-03 | 2016-07-13 | 武汉理工大学 | Noise reduction device for monitoring and automatically controlling application of friction improver based on rail vibration |
-
2007
- 2007-11-02 CN CNU2007201705378U patent/CN201187427Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297106A (en) * | 2011-08-26 | 2011-12-28 | 张意 | Novel sloped disk type constant-delivery oil pump |
| CN105752107A (en) * | 2016-03-03 | 2016-07-13 | 武汉理工大学 | Noise reduction device for monitoring and automatically controlling application of friction improver based on rail vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |