CN217682244U - Plunger pump crankshaft lubrication compensation system - Google Patents
Plunger pump crankshaft lubrication compensation system Download PDFInfo
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- CN217682244U CN217682244U CN202221345086.8U CN202221345086U CN217682244U CN 217682244 U CN217682244 U CN 217682244U CN 202221345086 U CN202221345086 U CN 202221345086U CN 217682244 U CN217682244 U CN 217682244U
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- lubricating
- plunger pump
- pipeline
- pump
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Abstract
The utility model belongs to the technical field of lubricated, and specifically relates to a plunger pump crankshaft lubrication compensating system is related to, including lubricated return circuit, lubricated return circuit includes many lubricated pipelines, every all install the lubrication pump on the lubrication pipeline, every all install the check valve on the lubrication pipeline, the check valve is located and is close to one side of lubrication pump hydraulic fluid outlet, every all install on the lubrication pipeline with the parallelly connected overflow valve of lubrication pump still is used for the drive including setting up on one of them return circuit the inverter motor of lubrication pump operation, inverter motor is configured to work as reduce its rotational speed when the last pressure value of lubrication return circuit is greater than the setting value. The lubricating pump has the advantages that damage to the lubricating pump caused by low-speed operation of the plunger pump can be reduced, and the service life of the lubricating pump is guaranteed.
Description
Technical Field
The application relates to the field of lubrication, in particular to a plunger pump crankshaft lubrication compensation system.
Background
At present, when the plunger pump is used, in order to ensure the lubrication of the plunger pump, two-way lubrication is mostly adopted.
Referring to fig. 1, a lubrication system of an existing plunger pump includes a plunger pump 1 and a lubrication circuit 2 for lubricating the plunger pump 1, the lubrication circuit 2 includes two lubrication pipelines 21 for respectively installing a lubrication pump 3 and a processing pipeline 23 having one end connected to the two lubrication pipelines 21, and a check valve 4 is installed on each lubrication pipeline 21 to ensure that a lubrication liquid always flows from the lubrication pipeline 21 to the processing pipeline 23. And each lubricating pipeline 21 is provided with an overflow valve 5 connected with the lubricating pump 3 in parallel, and the processing pipeline 23 is provided with a condenser 61 for cooling the lubricating liquid. For plunger pump 1 lubricate the cooling simultaneously through two lubricated pipelines 21, when plunger pump 1 rotational speed is higher, can provide the lubricated cooling of sufficient lubricating fluid of plunger pump 1 through two lubricating pumps 3, guarantee the normal operating of plunger pump 1. When the rotation speed of the plunger pump 1 is low and the lubricating liquid supplied by the two lubricating pumps 3 is large, the pressure in the whole lubricating circuit 2 is increased, so that the pressures at the two ends of the lubricating pumps 3 are unequal, and the overflow valve 5 is opened to realize overflow at the moment, so that a circuit is formed between the lubricating pumps 3 and the overflow valve 5.
When forming the return circuit between lubricating pump and the overflow valve, the oil inlet that lubricating pump export exhaust lubricating fluid will get back to lubricating pump again through overflow valve place return circuit, along with lubricating pump's operation, the lubricating fluid temperature in this return circuit will rise for lubricating pump generates heat seriously, leads to lubricating pump to burn out even.
SUMMERY OF THE UTILITY MODEL
In order to reduce the damage that causes the lubricating pump when plunger pump low-speed operation, guarantee the life of lubricating pump, the application provides a plunger pump crankshaft lubrication compensating system.
The application provides a lubricated compensating system of plunger pump bent axle adopts following technical scheme:
the lubricating compensation system comprises a lubricating loop, wherein the lubricating loop comprises a plurality of lubricating pipelines, each lubricating pipeline is provided with a lubricating pump, each lubricating pipeline is provided with a one-way valve, the one-way valve is positioned at one side close to an oil outlet of the lubricating pump, the lubricating compensation system also comprises a variable frequency motor which is arranged on one of the lubricating pipelines and used for driving the lubricating pump to operate, and the variable frequency motor is configured to reduce the rotating speed of the variable frequency motor when the pressure value on the lubricating loop is larger than a set value.
By adopting the technical scheme, when the plunger pump runs at a high speed, the two lubricating pumps can simultaneously provide lubricating liquid for the plunger pump, and when the rotating speed of the plunger pump is reduced, the lubricating liquid supplied by the two lubricating pumps exceeds the requirement of the plunger pump, so that the pressure in a lubricating loop is increased; when the pressure in the lubricating loop rises to be larger than a set value, the rotating speed of the variable frequency motor is reduced, the output flow of one plunger pump is reduced, and the output flows of the two lubricating pumps are consistent with the demand of the plunger pumps.
Optionally, a pressure sensor is installed on the lubrication loop, and the pressure sensor is used for detecting a pressure value on the lubrication loop.
Through adopting above-mentioned technical scheme, can detect the pressure in the lubrication circuit through pressure sensor to the output speed of adjusting inverter motor.
Optionally, the lubrication circuit further includes a delivery pipe disposed between one end of the lubrication pipe and the plunger pump, one end of the delivery pipe is connected to one end of the lubrication pipes close to the liquid outlet of the lubrication pump, and the other end of the delivery pipe is connected to the plunger pump for lubricating and cooling the plunger pump.
Through adopting above-mentioned technical scheme, the lubricated liquid in two lubricated pipelines can be exported through a pipeline simultaneously.
Optionally, the conveying pipeline is provided with a plurality of pipes.
Through adopting above-mentioned technical scheme, can realize the lubrication to a plurality of positions of plunger pump.
Optionally, a throttle valve is installed on each of the conveying pipelines.
By adopting the technical scheme, the amount of the lubricating liquid passing through each conveying pipeline can be adjusted.
Optionally, the lubrication loop further includes a processing pipeline connected between the lubrication pipeline and the conveying pipeline, a processing device for processing the lubrication liquid in the lubrication loop is installed on the processing pipeline, one end of the processing pipeline is communicated with the plurality of lubrication pipelines, and the other end of the processing pipeline is communicated with the plurality of conveying pipelines.
Through adopting above-mentioned technical scheme, can handle the lubricated liquid in the lubricated return circuit through handling the pipeline to avoid lubricated liquid to use repeatedly and influence the lubricated effect to the plunger pump.
Optionally, the treatment device comprises a condenser mounted on the treatment conduit.
Through adopting above-mentioned technical scheme, the condenser can cool down the lubricated liquid in the lubrication return circuit to guarantee the cooling performance of lubricated liquid.
Optionally, the condenser is a cooler of a coolant line.
Through adopting above-mentioned technical scheme, the cooling effect to the lubricated liquid is better.
Optionally, the treatment device comprises a filter mounted on the treatment conduit.
Through adopting above-mentioned technical scheme, the impurity of lubricated liquid in the treatment tube way can be filtered to the filter to when reducing lubricated liquid to the plunger pump lubrication, impurity in the lubricated liquid causes the damage to the plunger pump.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the lubricating pump control method and the lubricating pump control system, the variable frequency motor is adopted as the motor on one lubricating pump, and the rotating speed of the variable frequency motor can be automatically reduced when the pressure value on the lubricating loop is larger than a set value, so that the output flows of the two lubricating pumps are matched with the demand of the plunger pump, the overflow valve cannot damage the lubricating pump due to the fact that the overflow state is processed by the overflow valve for a long time, the damage to the lubricating pump when the plunger pump operates at a low speed is greatly reduced, and the service life of the lubricating pump is guaranteed;
2. the arrangement of the pressure sensor enables the rotating speed of the variable frequency motor to be automatically adjusted through the detection data of the pressure sensor, so that the automatic adjustment of the conveying of the lubricating liquid is realized;
3. the processing device is arranged, so that the lubricating liquid in the lubricating loop can be processed, and normal lubricating work is guaranteed.
Drawings
Fig. 1 is a schematic diagram for embodying the prior art.
Fig. 2 is a schematic view of the overall structure of the present application.
Description of reference numerals: 1. a plunger pump; 2. a lubrication circuit; 21. lubricating the pipeline; 22. a delivery conduit; 221. adjusting a valve; 23. processing the pipeline; 3. a lubrication pump; 31. a variable frequency motor; 4. a one-way valve; 5. an overflow valve; 6. a processing device; 61. a condenser; 62. a filter; 7. a pressure sensor.
Detailed Description
The present application is described in further detail below with reference to fig. 2.
The embodiment of the application discloses a lubricated compensating system of plunger pump bent axle. Referring to fig. 2, the plunger pump 1 crankshaft lubrication compensation system comprises a lubrication circuit 2 for providing lubrication fluid to the plunger pump 1. The lubrication circuit 2 includes a plurality of lubrication pipelines 21 connected in parallel and a delivery pipeline 22 connected to the plurality of lubrication pipelines 21, and one end of the delivery pipeline 22 away from the lubrication pipelines 21 is connected to the plunger pump 1, so as to deliver the lubrication liquid in the plurality of lubrication pipelines 21 to the plunger pump 1 at the same time. Each lubrication pipe 21 is provided with a lubrication pump 3 for supplying power to the lubrication liquid, and the driving motor of any lubrication pump 3 is selected as an inverter motor 31, and the inverter motor 31 is configured to automatically reduce the rotation of the lubrication circuit 2 when the pressure value in the lubrication circuit is larger than a set value. Under the normal state, the two lubricating pumps 3 can simultaneously provide lubricating liquid for the plunger pump 1 so as to meet the working requirement of the plunger pump 1. When the power of the plunger pump 1 is reduced, the amount of the lubricating liquid required by the plunger pump 1 is reduced, and the lubricating liquid delivered by the lubricating pump 3 is excessive, so that the pressure in the lubricating circuit 2 is increased, and when the pressure value in the lubricating circuit 2 is increased to be higher than a set value, the rotating speed of the variable frequency motor 31 is automatically reduced, so that the delivery flow of the lubricating pump 3 is reduced, the amount of the lubricating liquid delivered to the plunger pump 1 is reduced, and the requirement of the plunger pump 1 is met.
Wherein, pipeline 22 can be provided with one and also can be provided with many, and this application explains with pipeline 22 sets up two as the example, can realize the lubricated cooling to two positions of plunger pump 1. Meanwhile, each delivery pipe 22 is provided with a regulating valve 221 to control the flow of the lubricating liquid on the delivery pipe 22.
And in order to avoid the lubricating liquid in the two parallel lubricating pipelines 21 from flowing backwards due to the action of the other lubricating pump 3, a one-way valve 4 is arranged on each lubricating pipeline 21 to ensure that the lubricating liquid can only flow in one direction on the lubricating pipelines 21.
Meanwhile, each lubricating pipeline 21 is also provided with an overflow valve 5 connected with the lubricating pump 3 in parallel so as to ensure the pressure balance in the lubricating pipelines 21.
Referring to fig. 2, the lubrication circuit 2 further includes a processing pipeline 23 disposed between the lubrication pipelines 21 and the conveying pipelines 22, one end of the processing pipeline 23 is connected to the liquid outlets of the plurality of lubrication pipelines 21, and the other end of the processing pipeline 23 is connected to one end of the plurality of conveying pipelines 22 far away from the plunger pump 1. The processing pipeline 23 is provided with a processing device 6 for processing the lubricating liquid on the lubricating circuit 2, and the lubricating liquid in the lubricating circuit 2 can be processed through the processing device 6, so that the normal lubricating and cooling of the plunger pump 1 by the lubricating liquid can be ensured.
The processing device 6 comprises a condenser 61 arranged on the processing pipeline 23 and a filter 62 arranged on the processing pipeline 23, and when the plunger pump 1 is cooled and lubricated by the lubricating fluid, the lubricating fluid carries heat on the plunger pump 1, so that the temperature of the lubricating fluid is increased. The provision of the condenser 61 allows cooling of the lubricating fluid in the lubrication circuit 2 to reduce the heat of the lubricating fluid. Can filter the impurity in the lubricated liquid in the lubrication return circuit 2 through filter 62 to when reducing lubricated liquid and lubricating the cooling to plunger pump 1, the damage that the impurity in the lubricated liquid caused plunger pump 1.
Wherein, the condenser 61 can be selected from the condenser 61 with a coolant pipeline, and the cooling effect is better.
Referring to fig. 2, a pressure sensor 7 is further installed on the lubrication circuit 2, and the pressure sensor 7 may be installed at any position of the lubrication circuit 2 to detect the pressure on the lubrication circuit 2. The pressure sensor 7 is connected with the variable frequency motor 31 through the PLC controller, so that the PLC controller controls the rotating speed of the variable frequency motor 31 through a structure detected by the pressure sensor 7, and further automatic adjustment of the output flow of the lubricating pump 3 is realized.
The implementation principle of the plunger pump crankshaft lubrication compensation system in the embodiment of the application is as follows: under normal conditions, lubricating liquid can be provided for the plunger pump 1 through the two lubricating pumps 3 so as to ensure the normal work of the plunger pump 1. When the output flow of the plunger pump 1 decreases, resulting in an excessive flow of the lubricating fluid delivered by the lubricating pump 3 to the plunger pump 1, the lubricating fluid will accumulate in the lubricating circuit 2, resulting in an increase in pressure on the lubricating circuit 2. The pressure sensor 7 can monitor the pressure in the lubrication loop 2 in real time, and transmit the monitoring result to the PLC controller, and the PLC controller adjusts the rotating speed of the variable frequency motor 31 according to the detection result to adjust the output flow of the lubrication pumps 3, so that the amount of the lubrication liquid output by the two lubrication pumps 3 is consistent with the demand of the plunger pump 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a plunger pump crankshaft lubrication compensating system, includes lubrication circuit (2), lubrication circuit (2) are including many lubricated pipelines (21), every all install lubrication pump (3) on lubrication pipeline (21), every all install check valve (4) on lubrication pipeline (21), check valve (4) are located and are close to one side of lubrication pump (3) oil-out, its characterized in that: the lubricating device also comprises an inverter motor (31) arranged on one of the circuits and used for driving the lubricating pump (3) to operate, wherein the inverter motor (31) is configured to reduce the rotating speed of the lubricating circuit (2) when the pressure value on the lubricating circuit is larger than a set value.
2. The plunger pump crankshaft lubrication compensation system of claim 1, wherein: and a pressure sensor (7) is installed on the lubricating circuit (2), and the pressure sensor (7) is used for detecting a pressure value on the lubricating circuit (2).
3. The plunger pump crankshaft lubrication compensation system of claim 1, wherein: lubrication circuit (2) still including setting up lubrication pipe way (21) one end with pipeline (22) between plunger pump (1), pipeline (22) one end simultaneously with many lubrication pipe way (21) are close to the one end of lubrication pump (3) liquid outlet is connected, the pipeline (22) other end with plunger pump (1) are connected and are used for doing plunger pump (1) is lubricated the cooling.
4. The plunger pump crankshaft lubrication compensation system of claim 3, wherein: the conveying pipeline (22) is provided with a plurality of pipelines.
5. The plunger pump crankshaft lubrication compensation system of claim 4, wherein: each conveying pipeline (22) is provided with a throttling valve.
6. The plunger pump crankshaft lubrication compensation system of claim 3, wherein: lubricating circuit (2) still including connecting lubricating pipe way (21) with handle pipeline (23) between pipeline (22), install processing apparatus (6) that are arranged in handling lubricating liquid to lubricating circuit (2) on handling pipeline (23), handle pipeline (23) one end simultaneously with many lubricating pipe way (21) intercommunication, handle pipeline (23) other end simultaneously with many pipeline (22) intercommunication.
7. The plunger pump crankshaft lubrication compensation system of claim 6, wherein: the treatment device (6) comprises a condenser (61) mounted on the treatment conduit (23).
8. The plunger pump crankshaft lubrication compensation system of claim 7, wherein: the condenser (61) is a cooler of a coolant line.
9. The plunger pump crankshaft lubrication compensation system of claim 6, wherein: the treatment device (6) comprises a filter (62) mounted on the treatment conduit (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221345086.8U CN217682244U (en) | 2022-05-27 | 2022-05-27 | Plunger pump crankshaft lubrication compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221345086.8U CN217682244U (en) | 2022-05-27 | 2022-05-27 | Plunger pump crankshaft lubrication compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217682244U true CN217682244U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221345086.8U Active CN217682244U (en) | 2022-05-27 | 2022-05-27 | Plunger pump crankshaft lubrication compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217682244U (en) |
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2022
- 2022-05-27 CN CN202221345086.8U patent/CN217682244U/en active Active
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