CN213574890U - Multi-pump full-automatic injection pump - Google Patents
Multi-pump full-automatic injection pump Download PDFInfo
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- CN213574890U CN213574890U CN202022565129.0U CN202022565129U CN213574890U CN 213574890 U CN213574890 U CN 213574890U CN 202022565129 U CN202022565129 U CN 202022565129U CN 213574890 U CN213574890 U CN 213574890U
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Abstract
The utility model discloses a full-automatic injection pump of multi-pump, including a plurality of pumps, a plurality of pumps are parallelly connected, the pump includes the pump body, pump body top is provided with the hydro-cylinder, the hydro-cylinder is provided with oil inlet and oil-out, oil inlet and oil-out are connected with hydraulic power unit, be provided with displacement sensor on the hydro-cylinder, the inside piston that is provided with of the pump body, the piston is connected with the hydro-cylinder, the pump body outside is provided with feed inlet and discharge gate, feed inlet and discharge gate are connected with first pneumatic valve and second pneumatic valve respectively, pump body bottom is provided with the pump head, the pump head is connected with the agitator. The utility model discloses a parallelly connected mode of many pump heads has eliminated the pulse effect that single pump head arouses for liquid flow is stable in succession.
Description
Technical Field
The utility model relates to a chemical industry field, a multi-pump full-automatic injection pump very much relates to fields such as petrochemical, pharmaceutical chemical industry, 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 is switched on and off by means of pressure change in the pump body, and a hysteresis effect exists, so that pulses and liquid return during liquid conveying are formed, the flow rate and the flow speed are unstable, gas or other foreign matters are easy to suck in when the flow rate 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.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model discloses use the parallelly connected mode of many pump heads, eliminated the pulse effect that single pump head arouses for liquid flow is stable in succession.
The technical scheme of the utility model is that:
the utility model provides a multi-pump full-automatic injection pump, includes a plurality of pumps, a plurality of pumps are parallelly connected, the pump includes the pump body, pump body top is provided with the hydro-cylinder, the hydro-cylinder is provided with oil inlet and oil-out, oil inlet and oil-out are connected with hydraulic power unit, the inside piston that is provided with of the pump body, the piston is connected with the hydro-cylinder, the pump body outside is provided with feed inlet and discharge gate, feed inlet and discharge gate are connected with first pneumatic valve and second pneumatic valve respectively, pump body bottom is provided with the pump head, the pump head is connected with the agitator.
Preferably, the oil cylinder is provided with a displacement sensor, the oil inlet and the oil outlet are connected with a proportional valve of the hydraulic pump station, and the oil inlet amount of the oil cylinder is controlled by the size of the proportional valve.
The hydraulic pump station is a power device and provides motion power for the oil cylinder. The hydraulic pump station comprises a motor and a hydraulic pump, the motor is utilized by the hydraulic pump station to drive the hydraulic pump, the hydraulic pump gives hydraulic oil pressure, the hydraulic oil is transmitted to the oil cylinder through the oil pipe, so that the oil cylinder is driven to move, and the running speed of the oil cylinder is adjusted through the proportional valve.
The pneumatic valve accurately controls the opening and closing of the feeding port valve and the discharging port valve through the PLC according to the displacement of the oil cylinder, and ensures that liquid return or leakage cannot be generated in the moving process of the pump head, so that the flow precision is ensured.
The pneumatic valve is provided with an electromagnetic valve and is connected to the PLC through a signal wire, and the PLC controls the electromagnetic valve to open or close the pneumatic valve through a signal.
When the injection pump piston retreats, the PLC controller detects the displacement sensor signal, and output signal to feed inlet pneumatic valve opens the feed inlet pneumatic valve, makes in the material is inhaled the pump body, and PCL controller closes the discharge gate pneumatic valve and monitors the discharge gate pneumatic valve and be the off-state simultaneously, prevents to release the material backward flow.
PLC detects the displacement sensor signal when the piston gos forward, and output signal to feed inlet pneumatic valve closes the feed inlet pneumatic valve, then output signal to discharge gate pneumatic valve, opens the discharge gate pneumatic valve, pushes the pump body out with the material, and PCL controller monitoring feed inlet pneumatic valve is the closed condition simultaneously, prevents that the material from pushing out through the feed inlet.
When the pump is used for conveying heterogeneous liquid, particularly solid-liquid mixed liquid, the stirrer is additionally arranged on the pump head, so that the liquid is ensured to be uniform in the pump body, and the blockage of the pump caused by the sedimentation generated by solid-liquid separation or the air resistance generated by gas-liquid separation is avoided, thereby expanding the application range of the injection pump.
Preferably, the piston is connected with a piston rod of the oil cylinder.
Preferably, the piston and the pump body are sealed by a sealing ring.
Preferably, the discharge ports of the pumps are connected in parallel through a pipeline, continuous feeding is achieved through two or more pumps, and the flow rate is increased.
Compared with the prior art, the utility model, there is following beneficial effect:
1. through the PLC and the pneumatic valve control system, backflow or leakage caused by the lag of the one-way valve of the traditional injection pump is eliminated, and the conveying precision is improved.
2. The multiple pump heads are connected in parallel, so that the pulse effect of a single pump head is eliminated, and the stability of liquid conveying is ensured.
3. Through the stirrer, the conveying of heterogeneous mixed liquid is ensured, and the application range of the injection pump is expanded.
Drawings
Fig. 1 is a schematic structural view of the injection pump of the present invention;
FIG. 2 is a top view of the structure of the present invention with two pumps partially connected;
FIG. 3 is a top view of the structure of the local connection of three pumps of the present invention;
wherein: the device comprises a pump body 1, an oil cylinder 2, a piston 3, pump heads 4, a stirrer 5, a feed inlet 11, a discharge outlet 12, a first pneumatic valve 13, a second pneumatic valve 14, an oil inlet 21 and an oil outlet 22.
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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be interpreted broadly, e.g., as being either 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.
In this embodiment, as shown in fig. 1, the utility model provides a multi-pump full-automatic injection pump, including two pumps, two pumps are parallelly connected, the pump is including the pump body 1, 1 top of the pump body is provided with hydro-cylinder 2, hydro-cylinder 2 is provided with oil inlet 21 and oil-out 22, oil inlet 21 and oil-out 22 are connected with hydraulic power unit, 1 inside piston 3 that is provided with of the pump body, piston 3 is connected with hydro-cylinder 2, 1 outside of the pump body is provided with feed inlet 11 and discharge gate 12, feed inlet 11 and discharge gate 12 are connected with first pneumatic valve 13 and second pneumatic valve 14 respectively, 1 bottom of the pump body is provided with pump head 4, pump head 4 is connected with agitator.
In the embodiment, specifically, the oil cylinder 2 is provided with a displacement sensor, and the oil inlet 21 and the oil outlet 22 are connected with a proportional valve of a hydraulic pump station.
In the present embodiment, specifically, the piston 3 is connected to the piston rod of the cylinder 2.
In the present embodiment, specifically, the piston 3 and the pump body 1 are sealed by a seal ring.
In the present embodiment, specifically, as shown in fig. 2 and 3, the discharge ports 12 of the plurality of pumps are connected in parallel by a pipe.
The utility model discloses a working process: the utility model discloses an oil inlet quantity of the big or small control hydro-cylinder of proportional valve is equipped with displacement sensor on the hydro-cylinder, and proportional valve signal is given through displacement sensor's position to the functioning speed of hydro-cylinder, and the proportional valve controls business turn over oil size according to displacement sensor's signal.
The running speed of the oil cylinder is controlled by adjusting the oil inlet amount, so that the materials are conveyed accurately.
When the piston retreats, the pneumatic valve of the feeding port is controlled by the PLC to be automatically opened, so that the materials are sucked into the pump body. Meanwhile, the PLC automatically closes the pneumatic valve at the discharge port and monitors the pneumatic valve to be in a closed state, so that the material pushed out of the pump body is prevented from flowing back.
When the piston pushes forwards, the PLC controller automatically closes the pneumatic valve of the feeding port and monitors the pneumatic valve of the feeding port to be in a closed state, and materials are prevented from being pushed out through the feeding port. And opening a valve at the discharge port to push the material out of the pump body.
The multiple pumps are combined to enable the materials to be pushed out of the pump body in a constant flow mode, the discharge ports of the multiple pumps are connected in parallel through pipelines and are sequenced according to requirements, continuous and stable discharge is achieved, damping is eliminated, the stirrer is arranged on each pump head uniformly, and uniform feeding is achieved.
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 a multi-pump full-automatic injection pump, a serial communication port, including a plurality of pumps, a plurality of pumps are parallelly connected, the pump includes the pump body (1), pump body (1) top is provided with hydro-cylinder (2), hydro-cylinder (2) are provided with oil inlet (21) and oil-out (22), oil inlet (21) and oil-out (22) are connected with hydraulic power unit, the inside piston (3) that is provided with of the pump body (1), piston (3) are connected with hydro-cylinder (2), the pump body (1) outside is provided with feed inlet (11) and discharge gate (12), feed inlet (11) and discharge gate (12) are connected with first pneumatic valve (13) and second pneumatic valve (14) respectively, the pump body (1) bottom is provided with pump head (4), pump head (4) are connected with agitator (5).
2. The multi-pump full-automatic injection pump according to claim 1, wherein a displacement sensor is arranged on the oil cylinder (2), and the oil inlet (21) and the oil outlet (22) are connected with a proportional valve of a hydraulic pump station.
3. The multi-pump full automatic injection pump according to claim 1, characterized in that the piston (3) is connected with the piston rod of the cylinder (2).
4. The multi-pump full automatic injection pump according to claim 1, characterized in that the piston (3) and the pump body (1) are sealed by sealing rings.
5. The multi-pump full automatic injection pump according to claim 1, wherein the discharge ports (12) of the plurality of pumps are connected in parallel by a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022565129.0U CN213574890U (en) | 2020-11-09 | 2020-11-09 | Multi-pump full-automatic injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022565129.0U CN213574890U (en) | 2020-11-09 | 2020-11-09 | Multi-pump full-automatic injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574890U true CN213574890U (en) | 2021-06-29 |
Family
ID=76535103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022565129.0U Active CN213574890U (en) | 2020-11-09 | 2020-11-09 | Multi-pump full-automatic injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574890U (en) |
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2020
- 2020-11-09 CN CN202022565129.0U patent/CN213574890U/en active Active
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