CN217518842U - Energy-saving multifunctional plunger pump - Google Patents
Energy-saving multifunctional plunger pump Download PDFInfo
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- CN217518842U CN217518842U CN202221585754.4U CN202221585754U CN217518842U CN 217518842 U CN217518842 U CN 217518842U CN 202221585754 U CN202221585754 U CN 202221585754U CN 217518842 U CN217518842 U CN 217518842U
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Abstract
The utility model discloses an energy-saving multifunctional plunger pump, including the pump body, pump cover, piston, hydro-cylinder, switching-over valve, material transport cylinder and hydraulic power unit, be provided with the pump cover about the pump body, be provided with inlet, liquid outlet and switching-over valve on the pump body, the piston rod of piston and hydro-cylinder is connected, be provided with the business turn over hydraulic fluid port on the hydro-cylinder, business turn over hydraulic fluid port and hydraulic power unit's proportion switching-over valve are connected, the switching-over valve is controlled by PLC with the proportion switching-over valve, be provided with displacement sensor on the hydro-cylinder, proportional switching-over valve signal is given to the operating speed of hydro-cylinder through displacement sensor's position. The utility model discloses use the proportion switching-over valve, through PLC, according to the displacement volume of hydro-cylinder, the switch and the plunger functioning speed of accurate control inlet and liquid outlet valve guarantee can not produce back liquid or leak in the pump head motion process to the precision of flow has been guaranteed.
Description
Technical Field
The utility model relates to a chemical industry field, a special energy-saving multi-functional plunger pump involves fields such as petrochemical, pharmaceutical chemicals, dyestuff chemical industry, pesticide chemical industry, pigment chemical industry.
Background
The syringe pump that uses in the existing market, it is by the pump body, pump head, piston, check valve constitution basically, when using, through the reciprocating motion of pump head, form vacuum or pressure in the pump body, control the switch of check valve, accomplish fluid transport. In the infusion mode, because pressure and vacuum are generated in the pump body in a circulating mode in the working process, the switch of the one-way valve depends on the pressure change switch in the pump body, and a hysteresis effect exists, so that pulse and liquid return during liquid conveying are formed, the flow and the flow speed are unstable, gas or other foreign matters are easy to suck in when the flow and the flow speed are serious, and air resistance or blockage is formed.
Meanwhile, liquid is sucked and discharged by depending on pressure change generated when the pump head reciprocates, when heterogeneous liquid such as solid-liquid mixed liquid is conveyed, solid-liquid separation is easily generated in the pump body, the solid is accumulated in the pump body and cannot be discharged, or gas resistance is generated by gas-liquid separation to cause the blockage of the pump. Therefore, the injection pump used in the market at present is not suitable for conveying high-concentration solid-liquid mixed fluid.
At present, the mainstream injection pumps in the market are small in general lift, such as diaphragm pumps and electric pumps, and the use places are limited.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model discloses use the proportional reversing valve, through PLC, according to the displacement volume of hydro-cylinder, the switch and the plunger functioning speed of accurate control inlet and liquid outlet valve guarantee can not produce back liquid or leak in the pump head motion process to the precision of flow has been guaranteed.
The technical scheme of the utility model is that:
the utility model provides an energy-saving multifunctional plunger pump, includes the pump body, pump cover, piston, hydro-cylinder, switching-over valve, material transport jar and hydraulic power unit, be provided with the pump cover about the pump body, be provided with inlet, liquid outlet and switching-over valve on the pump body, the piston rod of piston and hydro-cylinder is connected, be provided with the business turn over hydraulic fluid port on the hydro-cylinder, the business turn over hydraulic fluid port is connected with hydraulic power unit's proportional reversing valve, the switching-over valve is controlled by PLC with proportional reversing valve, be provided with displacement sensor on the hydro-cylinder, proportional reversing valve signal is given through displacement sensor's position to the functioning speed of hydro-cylinder.
Preferably, the piston comprises a material cylinder piston and an oil cylinder piston, the material cylinder piston and the oil cylinder piston share a piston rod, and the material conveying cylinder and the material cylinder piston are divided into a left group and a right group.
Preferably, the liquid inlets and the liquid outlets are respectively provided with four groups, and the number of the reversing valves is 8, and the reversing valves comprise a reversing valve I, a reversing valve II, a reversing valve III, a reversing valve IV, a reversing valve V, a reversing valve VI, a reversing valve VII and a reversing valve VIII;
the first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve are respectively connected with the corresponding liquid inlets, and the fifth reversing valve, the sixth reversing valve, the seventh reversing valve and the eighth reversing valve are respectively connected with the corresponding liquid outlets.
Preferably, when the piston moves leftwards, the PLC controls the first reversing valve, the third reversing valve, the fifth reversing valve and the seventh reversing valve to be closed, controls the second reversing valve, the fourth reversing valve, the sixth reversing valve and the eighth reversing valve to be opened, the material conveying cylinder sucks materials through liquid inlets corresponding to the second reversing valve and the fourth reversing valve, and pumps the materials through liquid outlets corresponding to the sixth reversing valve and the eighth reversing valve.
Preferably, when the piston reaches a set position leftwards, the displacement sensor transmits a signal to the PLC, the PLC controls the proportional reversing valve to reverse, the oil inlet and the oil outlet are changed, the oil cylinder piston is pushed to move rightwards, the PLC controls the reversing valve II, the reversing valve IV, the reversing valve VI and the reversing valve VIII to be closed, the reversing valve I, the reversing valve III, the reversing valve V and the reversing valve VII to be opened and closed, the reversing valve I and the reversing valve III correspond to the liquid inlets to suck materials, and the reversing valve V and the reversing valve VII correspond to the liquid outlets to output materials, so that continuous material conveying is achieved.
Compared with the prior art, the utility model, there is following beneficial effect:
1. the utility model eliminates the backflow or leakage caused by the lag of the one-way valve of the traditional injection pump by the PLC control system, and improves the conveying precision;
2. the utility model controls the plunger operating speed through the proportional reversing valve, realizes stepless speed regulation, and realizes the regulation of material flow;
3. the utility model discloses an adopt the hydraulic cylinder drive, increase drive power improves the pump lift, enlarges application, and hydro-cylinder volume efficiency is high, can improve pump efficiency, reduces the energy consumption.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: the hydraulic pump comprises a pump body 1, a pump cover 2, an oil cylinder 3, a material conveying cylinder 4, a hydraulic pump station 5, a first reversing valve 11, a second reversing valve 12, a third reversing valve 13, a fourth reversing valve 14, a fifth reversing valve 15, a sixth reversing valve 16, a seventh reversing valve 17, an eighth reversing valve 18, a piston rod 31, an oil inlet and outlet 32, an oil cylinder piston 33 and a material cylinder piston 41.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited by the embodiments.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, the terms "plurality", and "a plurality" mean two or more unless otherwise specified.
As shown in fig. 1, the utility model provides an energy-saving multifunctional plunger pump, including the pump body 1, pump cover 2, a piston, hydro-cylinder 3, the switching-over valve, material transport cylinder 4 and hydraulic power unit 5, be provided with pump cover 2 about the pump body 1, be provided with the inlet on the pump body 1, liquid outlet and switching-over valve, piston and hydro-cylinder 3's piston rod 31 is connected, be provided with business turn over hydraulic fluid port 32 on the hydro-cylinder 3, business turn over hydraulic fluid port 32 and hydraulic power unit 5's proportional reversing valve are connected, reversing valve and proportional reversing valve are by PLC control switch, the flow through proportional reversing valve control hydraulic oil is with the speed of control cylinder, the piston includes material cylinder piston 41 and hydro-cylinder piston 33, material transport cylinder 4 and material cylinder piston 41 have about two sets of.
The oil cylinder 3 is provided with a displacement sensor, and the running speed of the oil cylinder 3 gives a signal to the proportional directional valve through the position of the displacement sensor. The proportional reversing valve controls the oil inlet and outlet sizes according to signals of the position transmitter, the speed of the oil cylinder is controlled, so that materials are conveyed accurately, meanwhile, the position of the oil cylinder piston 33 fed back by the displacement sensor is used, when the piston reaches the end of one end, the PLC controls the proportional valve to reverse, the oil cylinder 3 moves reversely, and continuous work is achieved. The material cylinder piston 41 and the oil cylinder piston 33 share the piston rod 31, and the oil cylinder piston 33 is driven by the hydraulic pump station 5 to drive the material cylinder piston 41 to move.
The liquid inlets and the liquid outlets are respectively provided with four groups, the number of the reversing valves is 8, and the reversing valves comprise a first reversing valve 11, a second reversing valve 12, a third reversing valve 13, a fourth reversing valve 14, a fifth reversing valve 15, a sixth reversing valve 16, a seventh reversing valve 17 and an eighth reversing valve 18, the first reversing valve 11, the second reversing valve 12, the third reversing valve 13 and the fourth reversing valve 14 are respectively connected with the corresponding liquid inlets, and the fifth reversing valve 15, the sixth reversing valve 16, the seventh reversing valve 17 and the eighth reversing valve 18 are respectively connected with the corresponding liquid outlets.
When the piston moves leftwards, the PLC controls the first reversing valve 11, the third reversing valve 13, the fifth reversing valve 15 and the seventh reversing valve 17 to be closed, controls the second reversing valve 12, the fourth reversing valve 14, the sixth reversing valve 16 and the eighth reversing valve 18 to be opened, and the material conveying cylinder 4 sucks materials through a liquid inlet corresponding to the second reversing valve 12 and the fourth reversing valve 14 and discharges the materials through a liquid outlet corresponding to the sixth reversing valve 16 and the eighth reversing valve 18.
When the piston reaches a set position leftwards, the displacement sensor transmits a signal to the PLC, the PLC controls the proportional reversing valve to reverse, the oil inlet and outlet 32 are switched, the oil cylinder piston 33 is pushed to move rightwards, the PLC controls the reversing valve II 12, the reversing valve IV 14, the reversing valve VI 16 and the reversing valve VIII 18 to be closed, the reversing valve I11, the reversing valve III 13, the reversing valve V15 and the reversing valve VII 17 to be opened, the reversing valve I11 and the reversing valve III 13 correspond to liquid inlets to suck materials, and the reversing valve V15 and the reversing valve VII 17 correspond to liquid outlets to output materials, so that continuous material conveying is realized.
The utility model discloses use the proportional reversing valve, through PLC, according to the displacement volume of hydro-cylinder, the switch and the plunger functioning speed of accurate control inlet and liquid outlet valve guarantee can not produce back liquid or leak in the pump head motion process to the precision of flow has been guaranteed. The mode of hydraulic cylinder driving is used, the driving force is large, and the pump lift can be greatly increased, so that the application range of the injection pump is expanded.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principles of the present invention, and these improvements should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides an energy-saving multi-functional plunger pump, its characterized in that, includes the pump body (1), pump cover (2), piston, hydro-cylinder (3), switching-over valve, material transport jar (4) and hydraulic power unit (5), be provided with pump cover (2) about the pump body (1), be provided with inlet, liquid outlet and switching-over valve on the pump body (1), piston and piston rod (31) of hydro-cylinder (3) are connected, be provided with business turn over hydraulic fluid port (32) on hydro-cylinder (3), the proportion switching-over valve of business turn over hydraulic power unit (5) is connected, the switching-over valve is controlled by PLC with the proportion switching-over valve, be provided with displacement sensor on hydro-cylinder (3), the operating speed of hydro-cylinder (3) gives the proportion switching-over valve signal through displacement sensor's position.
2. The energy-saving multifunctional plunger pump according to claim 1, characterized in that the pistons comprise a material cylinder piston (41) and an oil cylinder piston (33), the material cylinder piston (41) and the oil cylinder piston (33) share a piston rod (31), and the material conveying cylinder (4) and the material cylinder piston (41) have two left and right groups.
3. The energy-saving multifunctional plunger pump as claimed in claim 2, wherein the liquid inlet and the liquid outlet are respectively provided with four groups, and the number of the reversing valves is 8, and the reversing valves comprise a first reversing valve (11), a second reversing valve (12), a third reversing valve (13), a fourth reversing valve (14), a fifth reversing valve (15), a sixth reversing valve (16), a seventh reversing valve (17) and an eighth reversing valve (18);
the reversing valve I (11), the reversing valve II (12), the reversing valve III (13) and the reversing valve IV (14) are respectively connected with corresponding liquid inlets, and the reversing valve V (15), the reversing valve VI (16), the reversing valve VII (17) and the reversing valve VIII (18) are respectively connected with corresponding liquid outlets.
4. The energy-saving multifunctional plunger pump as claimed in claim 3, wherein when the piston moves leftwards, the PLC controls the first reversing valve (11), the third reversing valve (13), the fifth reversing valve (15) and the seventh reversing valve (17) to be closed, controls the second reversing valve (12), the fourth reversing valve (14), the sixth reversing valve (16) and the eighth reversing valve (18) to be opened, the material conveying cylinder (4) sucks in the material through corresponding liquid inlets of the second reversing valve (12) and the fourth reversing valve (14), and pumps out the material through corresponding liquid outlets of the sixth reversing valve (16) and the eighth reversing valve (18).
5. The energy-saving multifunctional plunger pump as claimed in claim 3, wherein when the piston reaches a set position leftwards, the displacement sensor transmits a signal to the PLC, the PLC controls the proportional directional valve to change direction, the oil inlet and outlet (32) are changed, the oil cylinder piston (33) is pushed to move rightwards, the PLC controls the directional valve II (12), the directional valve IV (14), the directional valve III (16) and the directional valve IV (18) to be closed, and controls the directional valve I (11), the directional valve III (13), the directional valve V (15) and the directional valve VII (17) to be opened, the directional valve I (11) and the directional valve III (13) respectively suck materials through corresponding liquid inlets, and the directional valve V (15) and the directional valve VII (17) respectively output materials through corresponding liquid outlets, so that continuous material conveying is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221585754.4U CN217518842U (en) | 2022-06-23 | 2022-06-23 | Energy-saving multifunctional plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221585754.4U CN217518842U (en) | 2022-06-23 | 2022-06-23 | Energy-saving multifunctional plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217518842U true CN217518842U (en) | 2022-09-30 |
Family
ID=83392179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221585754.4U Active CN217518842U (en) | 2022-06-23 | 2022-06-23 | Energy-saving multifunctional plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217518842U (en) |
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2022
- 2022-06-23 CN CN202221585754.4U patent/CN217518842U/en active Active
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