CN216896711U - Lubricating system of plunger pump - Google Patents
Lubricating system of plunger pump Download PDFInfo
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- CN216896711U CN216896711U CN202123061802.8U CN202123061802U CN216896711U CN 216896711 U CN216896711 U CN 216896711U CN 202123061802 U CN202123061802 U CN 202123061802U CN 216896711 U CN216896711 U CN 216896711U
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Abstract
The utility model discloses a lubricating system of a plunger pump, which is used for introducing lubricating oil into the plunger pump and comprises an oil tank, a circulating oil pump, a controller, a detection assembly, a filtering device and a heat exchange device, wherein the oil tank is connected with the circulating oil pump; the oil tank is provided with oil-out and oil inlet, the oil-out pass through filter equipment circulating oil pump with heat transfer device with the lubricating oil import of plunger pump is linked together, the oil inlet with the lubricating oil export of plunger pump is linked together, filter equipment is used for filtering particulate matter in the lubricating oil, heat transfer device is used for right the lubricating oil heat transfer, detection module is used for detecting the data parameter of lubricating oil, detection module with controller control connection, the controller is used for receiving detection module's data parameter, and carry out the early warning when the data parameter exceedes the early warning threshold value. The problem that the lubricating effect of plunger pump is relatively poor can be solved to above-mentioned scheme.
Description
Technical Field
The utility model relates to the technical field of plunger pump lubrication, in particular to a lubricating system of a plunger pump.
Background
The plunger pump is the main equipment for pumping the fracturing medium under high pressure in the fracturing process of oil and gas fields. During the operation of the plunger pump, the key parts of the plunger pump, such as a crankshaft, a pull rod, a plunger and the like, need to be lubricated.
In the related technology, the lubricating system comprises an oil tank and a connecting pipeline, the oil tank is used for storing lubricating oil, an oil outlet of the oil tank is communicated with a lubricating liquid inlet of the plunger pump through the connecting pipeline, an oil inlet of the oil tank is communicated with a lubricating liquid outlet of the plunger pump through the connecting pipeline, the lubricating oil in the oil tank is introduced into the plunger pump through the connecting pipeline and then returns to the oil tank through the plunger pump, so that the lubricating oil circulates in the lubricating system.
However, after the lubricating oil works for a period of time, the quality of the lubricating oil is reduced, so that the lubricating effect is easily reduced, and the lubricating effect of the plunger pump is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a lubricating system of a plunger pump, which aims to solve the problem of poor lubricating effect of the plunger pump.
In order to solve the problems, the utility model adopts the following technical scheme:
a lubricating system of a plunger pump is used for introducing lubricating oil into the plunger pump and comprises an oil tank, a circulating oil pump, a controller, a detection assembly, a filtering device and a heat exchange device;
the oil tank is provided with an oil outlet and an oil inlet, the oil outlet is communicated with a lubricating oil inlet of the plunger pump through the filtering device, the circulating oil pump and the heat exchange device, the oil inlet is communicated with a lubricating oil outlet of the plunger pump, the filtering device is used for filtering particles in lubricating oil, the heat exchange device is used for exchanging heat with the lubricating oil, the detection assembly is used for detecting data parameters of the lubricating oil, the detection assembly is in control connection with the controller, and the controller is used for receiving the data parameters of the detection assembly and carrying out early warning when the data parameters exceed an early warning threshold value.
The technical scheme adopted by the utility model can achieve the following beneficial effects:
in the lubricating system disclosed by the utility model, the detection assembly is used for detecting the data parameters of the lubricating oil of the lubricating system, the detection assembly is in control connection with the controller, and the controller is used for receiving the data parameters of the detection assembly and giving an early warning when the data parameters exceed an early warning threshold. In this scheme, detecting element can detect the data parameter of lubricating oil, and the controller can carry out the early warning when the data parameter surpasss the early warning threshold value, and operating personnel can change lubricating oil after receiving the early warning that comes from the controller for lubricating oil in the lubricating system keeps the high-quality all the time, and then makes the lubricated effect of plunger pump better.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a lubrication system disclosed in an embodiment of the present invention.
Description of reference numerals:
110-oil tank, 120-circulating oil pump, 131-first filter, 132-second filter, 140-heat exchange device, 151-liquid level sensor, 1521-first pressure sensor, 1522-second pressure sensor, 1523-third pressure sensor, 1524-fourth pressure sensor, 153-first temperature sensor, 154-viscosity sensor, 155-flow sensor, 156-water content sensor, 157-second temperature sensor, 1581-first granularity sensor, 1582-second granularity sensor,
200-plunger pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the present invention discloses a lubrication system of a plunger pump 200, which is used for introducing lubricating oil into the plunger pump 200. The disclosed lubrication system includes an oil tank 110, a circulation oil pump 120, a controller, a detection assembly, a filtering device, and a heat exchanging device 140.
The oil tank 110 is used for storing lubricating oil, the oil tank 110 is provided with an oil outlet and an oil inlet, and the oil outlet can be communicated with the lubricating oil inlet of the plunger pump 200 through a filtering device, the circulating oil pump 120 and the heat exchange device 140. The oil inlet is communicated with the lubricating oil outlet of the plunger pump 200. Specifically, two adjacent components of the lubricating system can be connected through a pipeline, and the pipeline can be a flexible pipe or a union straight pipe.
In a specific working process, the circulating oil pump 120 provides circulating pressure for the lubricating oil, the circulating oil pump 120 pumps the lubricating oil out of the oil tank 110, then the lubricating oil passes through the filtering device and the heat exchange device 140 and then is introduced into the plunger pump 200, and then the lubricating oil returns to the oil tank 110 through the plunger pump 200, so that the lubricating oil circularly flows.
After the lubricating oil enters the plunger pump 200, impurities in the plunger pump 200 or wear particles generated by mechanical transmission flow together with the lubricating oil, so that the quality of the lubricating oil is reduced, and the lubricating effect of the plunger pump 200 is affected. For this reason, be provided with filter equipment in this embodiment, filter equipment is arranged in filtering the particulate matter in the lubricating oil, consequently can improve the quality of lubricating oil, and then improves the lubricated effect of plunger pump 200, in addition, can also prolong the life of lubricating oil.
After the lubricant oil enters the plunger pump 200, part of heat generated by mechanical transmission of the plunger pump 200 is transferred to the lubricant oil, which causes temperature increase of the lubricant oil and affects quality of the lubricant oil. The lubricating oil causes the lubricating effect of the plunger pump 200 to decrease during circulation. For this reason, be provided with heat transfer device 140 in this embodiment, heat transfer device 140 is used for the heat transfer to lubricating oil to make the temperature of lubricating oil reduce, improve the quality of lubricating oil, and then improve plunger pump 200's lubricated effect. In addition, the service life of the lubricating oil can be prolonged.
Optionally, the heat exchanging device 140 may adopt a water cooling heat exchanging manner or an air cooling heat exchanging manner, which is not limited herein.
The detection assembly is used for detecting data parameters of the lubricating oil, the detection assembly is in control connection with the controller, and the controller is used for receiving the data parameters of the detection assembly and giving an early warning when the data parameters exceed an early warning threshold value. Optionally, the data parameter detected by the detection component comprises at least one of temperature, viscosity, particle content, pressure of the lubricating oil.
In the embodiment disclosed in the application, the detection component can detect the data parameter of lubricating oil, and the controller can carry out the early warning when the data parameter surpasses the early warning threshold value, and operating personnel can change lubricating oil after receiving the early warning from the controller for lubricating oil in the lubricating system keeps the high-quality all the time, and then makes plunger pump 200's lubricated effect better.
In addition, the controller in the application is early-warning instead of alarming, and the early-warning shows that the data parameters of the lubricating oil are not abnormal and only approach abnormal data, so that risks are avoided in advance, and the phenomenon that the lubricating oil is damaged more after the data are abnormal is avoided.
In order to further improve the cleanliness of the lubricating oil, in another alternative embodiment, the filtering device may include a first filter 131 and a second filter 132, the first filter 131 may be located between the oil outlet and the circulating oil pump 120, and the first filter 131 is used for filtering the lubricating oil at the oil outlet. The second filter 132 is located between the circulating oil pump 120 and the heat exchanging device 140, and the second filter 132 is used for filtering the lubricating oil at the circulating oil pump 120. The filtering accuracy of the second filter 132 may be higher than that of the first filter 131.
In this scheme, carry out the two-stage filtration to lubricating oil among the lubricating system, first filter 131 is used for coarse filtration, just filters large granule impurity, and second filter 132 is used for the fine filtration, just also filters small granule impurity to reduce the impurity content of lubricating oil, improve the cleanliness factor of lubricating oil, thereby further improve plunger pump 200's lubricated effect.
In addition, the service life of the lubricating oil can be further prolonged through two-stage filtration, the frequency of replacing the lubricating oil is reduced, and the economic benefit is improved.
In another alternative embodiment, the detection assembly may include a liquid level sensor 151 and a pressure sensor, and the liquid level sensor 151 may be disposed at the oil tank 110 for detecting the level of the lubricant in the oil tank 110. The pressure sensor may be disposed between the oil outlet and the lubricant oil inlet for detecting a pressure of the lubricant oil.
And when the detection value of the pressure sensor exceeds the pressure early warning threshold value, the controller sends out a pressure early warning signal. The pressure early warning threshold value can be a maximum early warning pressure value or a minimum early warning pressure value.
When the detection value of the liquid level sensor 151 exceeds the liquid level early warning threshold value, the controller sends out a liquid level early warning signal. The liquid level early warning threshold value can be the lowest liquid level early warning threshold value or the highest liquid level early warning threshold value.
In this scheme, lubricating system can detect the early warning to the pressure and the liquid level of lubricating oil to the data of further having avoided lubricating oil takes place unusually.
In addition, in the above embodiment, the liquid level sensor 151 and the pressure sensor can not only realize early warning, but also find out a fault caused by insufficient pressure for an operator. Specifically, when the detection value of the pressure sensor exceeds the pressure warning threshold, it indicates that the suction pressure in the lubrication system is insufficient. There are many factors such as the clogging of the line and the decrease of the amount of lubricating oil. Therefore, when the detection value of the pressure sensor exceeds the pressure warning threshold, the detection value of the liquid level sensor 151 may be combined to determine whether the lubricating oil is at a low liquid level. If the lubricating oil level is low, the operator can fill the lubricating oil. If the level of the lubricating oil is normal, the pipeline can be blocked, and the corresponding pipeline is cleaned.
In another alternative embodiment, the detection assembly may further include a first temperature sensor 153, a viscosity sensor 154, and a flow sensor 155, and the first temperature sensor 153, the viscosity sensor 154, and the flow sensor 155 may be located between the heat exchanging device 140 and the lubricant inlet. The first temperature sensor 153 is for detecting the temperature of the lubricating oil at the lubricating oil inlet, the flow rate sensor 155 is for detecting the flow rate of the lubricating oil, and the viscosity sensor 154 is for detecting the viscosity of the lubricating oil.
The controller is connected to the circulation oil pump 120, and the controller may control the rotation speed of the circulation oil pump 120 based on the detected values of the first temperature sensor 153, the viscosity sensor 154, the flow sensor 155, and the pressure sensor.
In this scheme, the controller can control the rotational speed of the recycle oil pump 120 according to the detection values of the first temperature sensor 153, the viscosity sensor 154, the flow sensor 155 and the pressure sensor, and the controller adjusts the rotational speed of the recycle oil pump 120 according to the temperature, the viscosity or the flow of the lubricating oil at this time to improve the pumping pressure thereof, so that the lubricating oil has sufficient pressure for lubrication, thereby improving the stability of the lubrication system and further improving the lubrication effect of the plunger pump 200.
For example, when the lubrication system is initially operated, i.e., turned on, the temperature of the lubricating oil is low, the viscosity of the lubricating oil is high, the controller compensates the flow rate of the lubricating oil according to the detection data of the first temperature sensor 153, the viscosity sensor 154, the flow rate sensor 155 and the pressure sensor, and increases the flow rate of the lubricating oil by increasing the rotation speed of the circulating oil pump 120, so as to ensure that the plunger pump 200 can have a sufficient flow rate of the lubricating oil for lubrication at a low temperature.
For another example, when the lubricating system is operated for a period of time, the temperature of the lubricating oil rises, the viscosity of the lubricating oil decreases, and the controller compensates the pressure of the lubricating oil according to the detection data of the first temperature sensor 153, the viscosity sensor 154, the flow sensor 155 and the pressure sensor, so as to ensure that the plunger pump 200 can have enough pressure of the lubricating oil for lubrication at high temperature.
In an alternative embodiment, the controller issues a viscosity warning signal in the event that the value detected by the viscosity sensor 154 exceeds a warning viscosity threshold. This scheme can further monitor the viscosity of lubricating oil to can avoid because the risk that the viscosity of lubricating oil reduces and cause.
In the above embodiment, the water content of the lubricating oil is also an important index, and a high water content of the lubricating oil indicates that the quality of the lubricating oil is degraded, thereby degrading the lubricating effect of the plunger pump 200.
To this end, in another alternative embodiment, the detection assembly may further include a water cut sensor 156, and the water cut sensor 156 may be disposed at the oil tank 110 for detecting the water content of the lubricating oil in the oil tank 110.
When the detection value of the water content sensor 156 exceeds the water content pre-warning threshold, the controller sends out a water content over-standard pre-warning signal. This scheme can further monitor the water content of lubricating oil to can avoid because the risk that the water content of lubricating oil exceeds standard and causes.
In another alternative embodiment, the detection assembly may include a second temperature sensor 157, the second temperature sensor 157 may be located between the oil inlet and the lubricant outlet, the second temperature sensor 157 is configured to detect a temperature of the lubricant at the lubricant outlet, and the controller sends a temperature warning signal when a detected value of the second temperature sensor 157 exceeds a warning temperature threshold.
In this embodiment, the second temperature sensor 157 is used to detect the temperature of the lubricating oil at the lubricating oil outlet. When abnormality such as bush burning occurs in the plunger pump 200, the temperature of the lubricating oil at the lubricating oil outlet is raised, so that the abnormality such as bush burning can be warned by the temperature of the lubricating oil at the lubricating oil outlet, thereby avoiding major accidents and improving the safety of the plunger pump 200.
In another optional embodiment, the detection assembly may further include a particle level sensor, the particle level sensor may be configured to detect a cleanliness of the lubricating oil, and the controller sends out a cleanliness early warning signal when a detection value of the particle level sensor exceeds a cleanliness early warning threshold. This scheme can further monitor the cleanliness factor of lubricating oil to can avoid because the risk that the particulate matter of lubricating oil exceeds standard and causes.
Optionally, the number of the particle size sensors is two, and the first particle size sensor 1581 and the second particle size sensor 1582 are provided, the first particle size sensor 1581 may be located between the heat exchanging device 140 and the filtering device, and the second particle size sensor 1582 is located between the oil inlet and the lubricating oil outlet. At this moment, the particulate matter of the lubricating oil entering the plunger pump 200 can be detected, and the particulate matter of the lubricating oil discharging the plunger pump 200 can also be detected, so that the risk caused by the standard exceeding of the particulate matter of the lubricating oil is further avoided.
In addition, second particle size sensor 1582 is located between oil inlet and the lubricating oil export, when the particulate matter content early warning of the lubricating oil at lubricating oil exit, whether take place unusually in need detecting plunger pump 200 to can avoid the part damage in the plunger pump 200, improve plunger pump 200's security.
In the above embodiment, the oil passage of the lubrication system is long, and only one pressure sensor is provided, so that the detection accuracy is low. To this end, in another alternative embodiment, the number of the pressure sensors may be plural, and the plural pressure sensors may be provided at intervals between the oil outlet and the lubricating oil inlet. In this scheme, pressure sensor's quantity is more, consequently can detect the pressure of whole transmission oil circuit, and then improves and detect the precision.
In addition, each pressure sensor represents the pressure value of one section of pipeline, and the position of pressure reduction can be confirmed more accurately through a plurality of pressure sensors, so that the fault discharge efficiency is improved.
In another optional embodiment, pressure sensors may be disposed on both sides of the filtering device, and the controller performs the warning when a difference between detection values of the pressure sensors on both sides of the filtering device exceeds a warning pressure difference. In this scheme, because filter equipment's import is blockked up by the granule, consequently cause filter equipment's import and export the pressure differential to exceed early warning pressure difference, explain this moment that filter equipment is blockked up, can't filter, consequently need operating personnel to change filter equipment. Or more particles in the lubricating oil cause the pressure difference between the inlet and the outlet of the filtering device to exceed the early warning pressure difference, so that all the lubricating oil needs to be more slippery. This solution further improves the reliability of the lubrication system.
Specifically, the pressure sensors described above may be disposed on both sides of the second filter 132.
In another alternative embodiment, the detection assembly may include the above-mentioned liquid level sensor 151, a plurality of pressure sensors, which may be a first pressure sensor 1521, a second pressure sensor 1522, a third pressure sensor 1523 and a fourth pressure sensor 1524, respectively, and a first temperature sensor 153, a viscosity sensor 154, a flow sensor 155, a viscosity sensor 154, a water content sensor 156, a second temperature sensor 157, a first particle size sensor 1581 and a second particle size sensor 1582.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A lubricating system of a plunger pump is used for introducing lubricating oil into the plunger pump (200), and is characterized by comprising an oil tank (110), a circulating oil pump (120), a controller, a detection assembly, a filtering device and a heat exchange device (140);
the oil tank (110) is provided with an oil outlet and an oil inlet, the oil outlet is communicated with a lubricating oil inlet of the plunger pump (200) through the filtering device, the circulating oil pump (120) and the heat exchange device (140), the oil inlet is communicated with a lubricating oil outlet of the plunger pump (200), the filtering device is used for filtering particles in the lubricating oil, the heat exchange device (140) is used for exchanging heat of the lubricating oil, the detection assembly is used for detecting data parameters of the lubricating oil, the detection assembly is in control connection with the controller, and the controller is used for receiving the data parameters of the detection assembly and giving an early warning when the data parameters exceed an early warning threshold value.
2. The lubrication system according to claim 1, wherein said filtering means comprises a first filter (131) and a second filter (132), said first filter (131) being located between said oil outlet and said circulation oil pump (120), said second filter (132) being located between said circulation oil pump (120) and said heat exchanging means (140), the filtering accuracy of said second filter (132) being higher than the filtering accuracy of said first filter (131).
3. The lubrication system according to claim 1, wherein the detection assembly comprises a liquid level sensor (151) and a pressure sensor, the liquid level sensor (151) being arranged at the oil tank (110) for detecting a level of the lubricating oil within the oil tank (110), the pressure sensor being arranged between the oil outlet and the lubricating oil inlet for detecting a pressure of the lubricating oil.
4. The lubrication system according to claim 3, wherein the detection assembly further comprises a first temperature sensor (153), a viscosity sensor (154) and a flow sensor (155), the first temperature sensor (153), the viscosity sensor (154) and the flow sensor (155) being located between the heat exchanging device (140) and the lubricant oil inlet, the first temperature sensor (153) being configured to detect a temperature of the lubricant oil at the lubricant oil inlet, the flow sensor (155) being configured to detect a flow rate of the lubricant oil, the viscosity sensor (154) being configured to detect a viscosity of the lubricant oil;
the controller is connected with the circulating oil pump (120), and the controller can control the rotating speed of the circulating oil pump (120) according to detection values of the first temperature sensor (153), the viscosity sensor (154), the flow sensor (155) and the pressure sensor.
5. The lubrication system according to claim 4, wherein the detection assembly further comprises a water cut sensor (156), the water cut sensor (156) being provided to the oil tank (110) for detecting a water content of the lubricating oil in the oil tank (110).
6. The lubrication system according to claim 4, wherein the detection assembly comprises a second temperature sensor (157), the second temperature sensor (157) being located between the oil inlet and the lubrication oil outlet, the second temperature sensor (157) being configured to detect a temperature of the lubrication oil at the lubrication oil outlet.
7. The lubrication system according to claim 4, wherein the detection assembly further comprises a particle size sensor for detecting cleanliness of the lubricating oil.
8. The lubrication system according to claim 3, wherein the pressure sensor is plural in number, and the plural pressure sensors are provided at intervals between the oil outlet and the lubricating oil inlet.
9. The lubrication system according to claim 8, wherein the pressure sensor is provided on both sides of the filter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123061802.8U CN216896711U (en) | 2021-12-07 | 2021-12-07 | Lubricating system of plunger pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123061802.8U CN216896711U (en) | 2021-12-07 | 2021-12-07 | Lubricating system of plunger pump |
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| CN216896711U true CN216896711U (en) | 2022-07-05 |
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| CN202123061802.8U Active CN216896711U (en) | 2021-12-07 | 2021-12-07 | Lubricating system of plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977942A (en) * | 2022-12-16 | 2023-04-18 | 山东尤科斯石油装备有限公司 | An oil circuit detection system at the power end of a fracturing plunger pump |
-
2021
- 2021-12-07 CN CN202123061802.8U patent/CN216896711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977942A (en) * | 2022-12-16 | 2023-04-18 | 山东尤科斯石油装备有限公司 | An oil circuit detection system at the power end of a fracturing plunger pump |
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