CN217030845U - Pneumatic type drilling fluid conveying system - Google Patents
Pneumatic type drilling fluid conveying system Download PDFInfo
- Publication number
- CN217030845U CN217030845U CN202123337422.2U CN202123337422U CN217030845U CN 217030845 U CN217030845 U CN 217030845U CN 202123337422 U CN202123337422 U CN 202123337422U CN 217030845 U CN217030845 U CN 217030845U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- drilling fluid
- switch valve
- controller
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a pneumatic drilling fluid conveying system.A first pipeline and a second pipeline are communicated with the top of a feed tank, the two pipelines are communicated with an instrument air source through a three-way pipe, a vacuum generator is arranged on the second pipeline, a four-way pipe is arranged at the bottom of the feed tank, and four pipe orifices of the four-way pipe are respectively communicated with a transfusion pipeline of a drilling fluid tank, a bottom outlet of the feed tank, an output pipeline and a waste discharge pipeline; the first pipeline is provided with a first switch valve, the second pipeline is provided with a second switch valve and a third switch valve at two ends of the vacuum generator, and the transfusion pipeline, the output pipeline and the waste discharge pipeline are respectively provided with a fourth switch valve, a fifth switch valve and a sixth switch valve; the controller is used for controlling the whole system. The system realizes the conveying of the drilling fluid in a pneumatic mode, can well overcome the defects of blockage, low suction stroke, large outlet pulsation and incapability of joint control, and can easily deal with the conveying and sampling of the drilling fluid.
Description
Technical Field
The utility model relates to the field of drilling fluid performance detection, in particular to a pneumatic type drilling fluid conveying system.
Background
The drilling fluid belongs to non-Newtonian fluid and has the characteristics of high viscosity, strong shear stress and high specific gravity. At present, the mainstream power equipment suitable for conveying the drilling fluid only comprises a diaphragm pump and a screw pump; the starting of the screw pump needs manual assistance, so that the motor is easily burnt due to rotation blockage, and the application in an unattended scene is not facilitated; although the diaphragm pump has strong adaptability to the drilling fluid, if the diaphragm pump is used for lifting and conveying the drilling fluid, when the diaphragm pump conveys the drilling fluid to a high place through the lift stroke of the pump at a low place, the outlet pulsation is too large, remote power supply and linkage control are required, and automatic control is not facilitated; and when the diaphragm pump conveys the drilling fluid to a high place at the high place through the suction stroke of the pump, and the density of the drilling fluid is high, the lifting height is extremely limited, and the engineering application cannot be realized. Therefore, the existing methods for realizing the lifting and conveying of the drilling fluid by adopting the power pump have the defects of poor adaptability, difficult realization of automatic control and high failure rate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pneumatic type drilling fluid conveying system, which can realize conveying of drilling fluid in a pneumatic mode, well overcome the defects of blockage, low suction stroke, large outlet pulsation and incapability of joint control, and can easily cope with conveying and sampling of the drilling fluid.
The technical scheme of the utility model is as follows:
a pneumatic drilling fluid conveying system comprises a feed liquid tank, an instrument air source, a vacuum generator, a drilling liquid tank and a controller;
the top of the feed tank is communicated with a first pipeline and a second pipeline, the first pipeline and the second pipeline are communicated with the instrument air source through a three-way pipe, the vacuum generator is arranged on the second pipeline, a four-way pipe is arranged at the bottom of the feed tank, a first pipe orifice of the four-way pipe is communicated with a transfusion pipeline of the drilling fluid tank, a second pipe orifice of the four-way pipe is communicated with an outlet at the bottom of the feed tank, a third pipe orifice of the four-way pipe is communicated with an output pipeline, and a fourth pipe orifice of the four-way pipe is communicated with a waste discharge pipeline;
a first switch valve is arranged on the first pipeline, a second switch valve and a third switch valve are respectively arranged at two ends of the vacuum generator on the second pipeline, and a fourth switch valve, a fifth switch valve and a sixth switch valve are respectively arranged on the infusion pipeline, the output pipeline and the waste discharge pipeline;
the controller is electrically connected with the instrument air source, the vacuum generator and all the switch valves.
When the drilling fluid is pumped and stored, the vacuum generator is used for vacuumizing the feeding tank, so that the pressure intensity in the tank is smaller than the external pressure intensity to form negative pressure, and the drilling fluid in the drilling fluid tank is sucked into the feeding tank to be stored by utilizing the siphon principle; when the drilling fluid is output, the feeding tank is pressurized through the instrument air source, so that the pressure in the feeding tank is greater than the external pressure, the drilling fluid in the feeding tank is pressed and output to the bottom, and finally the drilling fluid is lifted and conveyed to the outside through the output pipeline. The controller is used for controlling the on-off of the switch valve and the starting of the equipment, and the control process is realized through the on-off of the switch valve.
Further, the top of the liquid feeding tank is also communicated with a pressure relief pipeline, a seventh switch valve is arranged on the pressure relief pipeline, and the seventh switch valve is electrically connected with the controller.
The pressure relief pipeline is used for preventing the feeding liquid tank from being excessively high in internal pressure and relieving pressure through the switch valve when necessary, so that the safety of conveying the drilling fluid is improved.
Further, one side of the feed liquid tank close to the top is provided with a liquid level meter, and the liquid level meter is electrically connected with the controller.
The liquid level meter is used for monitoring the real-time liquid level height of the drilling fluid stored in the feed tank, and when the liquid level of the drilling fluid triggers the liquid level meter or the set time for allowing the drilling fluid to be sucked is reached, the controller controls the on-off of the corresponding switch valve to stop the suction of the drilling fluid.
Furthermore, one side of the feed tank close to the top is also communicated with an overflow pipe, an eighth switch valve is arranged on the overflow pipe, and the eighth switch valve is electrically connected with the controller.
Further, the height of the installation position of the overflow pipe is higher than that of the liquid level meter.
The controller controls the on-off of the switch valve to enable the overflow pipe to overflow excessive drilling fluid in the feeding fluid tank, and the feeding fluid tank is prevented from sucking the drilling fluid too fast to exceed the set liquid level height.
Furthermore, be equipped with the transmitter of pressing absolutely on the output pipeline, the transmitter of pressing absolutely is located the exit of output pipeline, the transmitter of pressing absolutely with controller electric connection.
The absolute pressure transmitter matched with the outlet of the output pipeline can sense the air pressure change at the outlet, and when the fifth switch valve is closed, the signal transmission can be realized by influencing the air pressure at the outlet, so that the linkage control without cable connection is realized. The specific principle is as follows: when the outlet of the output pipeline is connected with the inlet of the upper-level equipment, the upper-level equipment only needs to evacuate air in the pipeline at the inlet to enable the absolute pressure transmitter to feel the change of the vertical pressure when liquid needs to be supplied, a signal of the absolute pressure transmitter is transmitted to the controller, the controller can react according to the characteristic of the change of the air pressure, and the operations of vacuum liquid pumping → pressurization → opening of the fifth switch valve for liquid conveying are started, so that the operation of linkage liquid supply is completed.
Furthermore, the bottom of the feed tank is arc-shaped, so that the drilling fluid in the tank can be output from an outlet at the bottom more quickly.
Further, the controller comprises a PLC with a control panel. The controller can also be equipment such as an industrial personal computer which can control and display, is convenient for carry out master control on all equipment and switch valves, is convenient and intelligent, can realize the intelligent monitoring operation of the whole system by only one person, and can effectively improve the working efficiency.
Furthermore, the feed liquid tank is made of stainless steel materials, so that the storage strength of the feed liquid tank is improved, the service life is prolonged, and the safety is improved.
Furthermore, all switch valves in the conveying system adopt electromagnetic valves, so that the controller can be electrically connected with all the switch valves through leads respectively, the on-off of the switch valves can be controlled by an electric coupler, and the liquid suction and liquid filling processes of the system can be realized.
The utility model has the beneficial effects that:
the pneumatic drilling fluid conveying system disclosed by the utility model ingeniously utilizes the negative pressure during gas vacuum pumping to realize pumping storage in the liquid feeding tank, utilizes the positive pressure during gas pressurization to realize lifting conveying, and has the characteristics of safety, easiness in control and easiness in circulation because the gas pressure is in a controllable range, so that the defects of blockage, low suction stroke, large outlet pulsation and incapability of joint control can be well overcome when the pneumatic drilling fluid conveying system is applied to conveying of drilling fluid, and long-term stable commercial operation is realized.
The pneumatic drilling fluid conveying system is simple and effective, the size of the whole system is set according to needs, the pneumatic drilling fluid conveying system is easy to distribute on a drilling site, fixed-point quantitative sampling and fixed-point quantitative conveying of drilling fluid are realized, the use and operation are simple, the pneumatic drilling fluid conveying system can continuously and automatically operate without human intervention after normal installation/debugging, and the maintenance is simple.
Drawings
Fig. 1 is a schematic structural diagram of a pneumatic drilling fluid delivery system in example 1;
fig. 2 is a schematic structural view of a pneumatic drilling fluid conveying system in example 2;
fig. 3 is a schematic structural view of a pneumatic drilling fluid conveying system in example 3;
in the figure: the device comprises a feed liquid tank 1, an instrument wind source 2, a vacuum generator 3, a drilling liquid tank 4, a first pipeline 5, a second pipeline 6, a four-way pipe 7, a transfusion pipeline 8, an output pipeline 9, a waste discharge pipeline 10, a first switch valve 11, a second switch valve 12, a third switch valve 13, a fourth switch valve 14, a fifth switch valve 15, a sixth switch valve 16, a pressure release pipeline 17, a seventh switch valve 18, a liquid level meter 19, an overflow pipe 20, an eighth switch valve 21 and an absolute pressure transmitter 22.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.
Example 1:
as shown in fig. 1, a pneumatic drilling fluid conveying system comprises a feed tank 1, an instrument air source 2, a vacuum generator 3, a drilling fluid tank 4 and a controller (not shown in the figure);
the top of the feed tank 1 is communicated with a first pipeline 5 and a second pipeline 6, the first pipeline 5 and the second pipeline 6 are communicated with an instrument air source 2 through a three-way pipe, a vacuum generator 3 is arranged on the second pipeline 6, the bottom of the feed tank 1 is provided with a four-way pipe 7, a first pipe orifice of the four-way pipe 7 is communicated with a transfusion pipeline 8 of the drilling fluid tank 4, a second pipe orifice of the four-way pipe 7 is communicated with a bottom outlet of the feed tank 1, a third pipe orifice of the four-way pipe 7 is communicated with an output pipeline 9, and a fourth pipe orifice of the four-way pipe 7 is communicated with a waste discharge pipeline 10;
a first switch valve 11 is arranged on the first pipeline 5, a second switch valve 12 and a third switch valve 13 are respectively arranged at two ends of the vacuum generator 3 of the second pipeline 6, and a fourth switch valve 14, a fifth switch valve 15 and a sixth switch valve 16 are respectively arranged on the transfusion pipeline 8, the output pipeline 9 and the waste discharge pipeline 10;
the controller is electrically connected with the instrument air source 2, the vacuum generator 3 and all the switch valves.
When the drilling fluid is pumped for storage, the vacuum generator 3 is used for vacuumizing the feed tank 1, so that the pressure in the tank is smaller than the external pressure to form negative pressure, and the drilling fluid in the drilling fluid tank 4 is sucked into the feed tank 1 for storage by utilizing the siphon principle; when the drilling fluid is output, the feeding tank 1 is pressurized through the instrument air source 2, the pressure in the tank is larger than the external pressure, the drilling fluid in the feeding tank 1 is pressed and output to the bottom, and finally the drilling fluid is lifted and conveyed to the outside through the output pipeline 9. The controller is used for controlling the on-off of the switch valve and the starting of the equipment, and the control process is realized through the on-off of the switch valve.
In this embodiment, the top of the liquid feeding tank 1 is further communicated with a pressure relief pipeline 17, a seventh switch valve 18 is arranged on the pressure relief pipeline 17, and the seventh switch valve 18 is electrically connected with the controller. The pressure relief pipeline 17 is used for preventing the charging pressure in the liquid feeding tank 1 from being too high, and the pressure is relieved through a switch valve when necessary, so that the safety of conveying the drilling fluid is improved.
In this embodiment, a liquid level meter 19 is disposed on one side of the feed liquid tank 1 near the top, and the liquid level meter 19 is electrically connected to the controller. The liquid level meter 19 is used for monitoring the real-time liquid level height of the drilling fluid stored in the feed tank 1, and when the liquid level of the drilling fluid triggers the liquid level meter 19 or the set time for allowing the drilling fluid to be sucked is reached, the controller controls the on-off of the corresponding switch valve to stop the suction of the drilling fluid in the feed tank 1.
In this embodiment, the bottom of the feed tank 1 is curved, so that the drilling fluid in the tank can be output from the outlet at the bottom more quickly.
In this embodiment, the feed tank 1 is made of stainless steel, so as to improve the storage strength of the feed tank 1, prolong the service life and improve the safety.
In this embodiment, all the switch valves in the conveying system all adopt solenoid valves, so that the controller can be electrically connected with all the switch valves through wires respectively, the on-off of the switch valves is controlled by the electric coupler, and the liquid suction and liquid filling processes of the system are realized.
In this embodiment, the controller can be for the PLC controller that has the control panel, also can be for the equipment that can control the demonstration such as industrial computer, is convenient for carry out total control to all equipment and ooff valve, and convenient intelligence only needs alone can realize entire system's intelligent monitoring operation, can effectively improve work efficiency.
The wireless module can be set in the controller, the wireless module is communicated with the rear end, different pneumatic drilling fluid conveying systems can be controlled by different controllers in the same rear end to form a huge linkage type conveying hub, drilling fluid sampling or conveying of multiple systems can be synchronously performed, and the working efficiency is improved.
The operating principle of the utility model is as follows:
the system is prepared for power-on operation every time, residual liquid in the feed tank 1 needs to be discharged once, accumulation of residual liquid in the feed tank 1 caused by abnormal power failure is prevented, and influences on the purpose of detection of the performance of the drilling fluid are eliminated; the process of discharging the raffinate is as follows: firstly, opening a first switch valve 11 and a sixth switch valve 16 through a controller, closing a second switch valve 12, a third switch valve 13, a fourth switch valve 14, a fifth switch valve 15 and a seventh switch valve 18, and simultaneously starting an instrument air source 2; the instrument air source 2 inflates the tank, and sweeps the residual liquid in the feed liquid tank 1 according to the set time of the system, so that the residual liquid is discharged from the waste discharge pipeline 10 to prepare for liquid suction;
during liquid suction, the controller closes the first switch valve 11, the fifth switch valve 15, the sixth switch valve 16 and the seventh switch valve 18, opens the second switch valve 12, the third switch valve 13 and the fourth switch valve 14, and simultaneously starts the vacuum generator 3; at the moment, the vacuum generator 3 vacuumizes the feed tank 1, negative pressure generated inside the feed tank 1 is close to the opposite value of the external environment atmospheric pressure, and the drilling fluid in the drilling fluid tank 4 can be sucked into the feed tank 1 for storage by utilizing the siphon principle; when the liquid level of the drilling fluid triggers the liquid level meter 19 or reaches the allowable drilling fluid suction time set by the system, the related switch valve and equipment are closed through the controller, the drilling fluid suction is stopped, and preparation is made for the drilling fluid conveying;
during transfusion, the first switch valve 11 and the fifth switch valve 15 are opened through the controller, the second switch valve 12, the third switch valve 13, the fourth switch valve 14, the sixth switch valve 16 and the seventh switch valve 18 are closed, and the instrument air source 2 is started; at the moment, the pressure of the instrument air source 2 is adjusted as required, so that the instrument air source 2 pressurizes the feed tank 1, the pressure in the feed tank is greater than the atmospheric pressure of the external environment, the drilling fluid stored in the feed tank 1 can be conveyed to the output pipeline 9 through the outlet at the bottom, and the drilling fluid is conveyed to corresponding equipment or a sampling point through the output pipeline 9.
The pneumatic drilling fluid conveying system of the utility model ingeniously utilizes the negative pressure in the process of gas vacuum pumping to realize liquid pumping in the liquid feeding tank 1, utilizes the positive pressure in the process of gas pressurization to realize lifting conveying, and has the characteristics of safety, easy control and easy circulation because the gas pressure is in a controllable range, so that the pneumatic drilling fluid conveying system can well overcome the defects of blockage, low suction stroke, large outlet pulsation and incapability of joint control when being applied to the conveying of drilling fluid, and realizes long-term stable commercial operation.
The pneumatic drilling fluid conveying system is simple and effective, the size of the whole system is set according to needs, the pneumatic drilling fluid conveying system is easy to distribute on a drilling site, fixed-point quantitative sampling and fixed-point quantitative conveying of drilling fluid are realized, the use and operation are simple, the pneumatic drilling fluid conveying system can continuously and automatically operate without human intervention after normal installation/debugging, and the maintenance is simple.
Example 2:
as shown in fig. 2, this embodiment is similar to embodiment 1, except that an overflow pipe 20 is further communicated with a side of the feed tank 1 near the top, an outflow port of the overflow pipe 20 faces downward, the height of the overflow pipe 20 is higher than that of the liquid level gauge 19, an eighth switch valve 21 is disposed on the overflow pipe 20, and the eighth switch valve 21 is electrically connected to the controller. The eighth switch valve 21 is in a normally closed state, and the overflow pipe 20 overflows excessive drilling fluid in the feed tank 1 by controlling the on-off state of the switch valve through the controller, so that the situation that the drilling fluid is sucked into the feed tank 1 too fast and exceeds a set liquid level height is avoided.
Example 3:
as shown in fig. 3, this embodiment is similar to embodiment 2, except that an absolute pressure transmitter 22 is disposed on the output pipe 9, the absolute pressure transmitter 22 is disposed at the outlet of the output pipe 9, and the absolute pressure transmitter 22 is electrically connected to the controller.
The absolute pressure transmitter 22 matched at the outlet of the output pipeline 9 can sense the air pressure change at the outlet, and when the fifth switch valve 15 is closed, the signal transmission can be realized by influencing the air pressure at the outlet, so that the linkage control without cable connection is realized. The specific principle is as follows: when the outlet of the output pipeline 9 is connected to the inlet of the upper-level device, when the upper-level device needs to supply liquid, only the air in the pipeline at the inlet needs to be pumped out, so that the absolute pressure transmitter 22 senses the change of the vertical pressure, the signal of the absolute pressure transmitter 22 is transmitted to the controller, the controller can react according to the characteristic of the change of the air pressure, and the operations of vacuum liquid pumping → pressurization → opening of the fifth switch valve 15 for liquid conveying are started, and linkage liquid supply operation is completed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The pneumatic drilling fluid conveying system is characterized by comprising a fluid feeding tank (1), an instrument air source (2), a vacuum generator (3), a drilling fluid tank (4) and a controller;
the top of the feed tank (1) is communicated with a first pipeline (5) and a second pipeline (6), the first pipeline (5) and the second pipeline (6) are communicated with the instrument air source (2) through a three-way pipe, the vacuum generator (3) is arranged on the second pipeline (6), a four-way pipe (7) is arranged at the bottom of the feed tank (1), a first pipe orifice of the four-way pipe (7) is communicated with an infusion pipeline (8) of the drilling fluid tank (4), a second pipe orifice of the four-way pipe (7) is communicated with a bottom outlet of the feed tank (1), a third pipe orifice of the four-way pipe (7) is communicated with an output pipeline (9), and a fourth pipe orifice of the four-way pipe (7) is communicated with a waste discharge pipeline (10);
a first switch valve (11) is arranged on the first pipeline (5), a second switch valve (12) and a third switch valve (13) are respectively arranged at two ends of the vacuum generator (3) of the second pipeline (6), and a fourth switch valve (14), a fifth switch valve (15) and a sixth switch valve (16) are respectively arranged on the liquid conveying pipeline (8), the output pipeline (9) and the waste discharge pipeline (10);
the controller is electrically connected with the instrument air source (2), the vacuum generator (3) and all the switch valves.
2. The pneumatic drilling fluid conveying system according to claim 1, wherein the top of the feed tank (1) is further communicated with a pressure relief pipeline (17), a seventh switch valve (18) is arranged on the pressure relief pipeline (17), and the seventh switch valve (18) is electrically connected with the controller.
3. The pneumatic drilling fluid conveying system according to claim 1, wherein a liquid level meter (19) is arranged on one side of the feed tank (1) close to the top, and the liquid level meter (19) is electrically connected with the controller.
4. The pneumatic type drilling fluid conveying system according to claim 3, wherein an overflow pipe (20) is further communicated with one side, close to the top, of the feeding tank (1), an eighth switch valve (21) is arranged on the overflow pipe (20), and the eighth switch valve (21) is electrically connected with the controller.
5. Pneumatic drilling fluid transfer system according to claim 4, characterized in that the overflow pipe (20) is arranged at a higher level than the level gauge (19).
6. The pneumatic type drilling fluid conveying system as claimed in claim 1, wherein an absolute pressure transmitter (22) is arranged on the output pipeline (9), the absolute pressure transmitter (22) is arranged at an outlet of the output pipeline (9), and the absolute pressure transmitter (22) is electrically connected with the controller.
7. A pneumatic drilling fluid delivery system according to claim 1, characterized in that the bottom of the feed tank (1) is arc-shaped.
8. The pneumatic drilling fluid delivery system of claim 1, wherein the controller comprises a PLC controller with a control panel.
9. A pneumatic drilling fluid delivery system according to claim 1, characterized in that the feed tank (1) is of stainless steel.
10. The pneumatic drilling fluid delivery system of claim 1, wherein all the on-off valves are solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337422.2U CN217030845U (en) | 2021-12-28 | 2021-12-28 | Pneumatic type drilling fluid conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337422.2U CN217030845U (en) | 2021-12-28 | 2021-12-28 | Pneumatic type drilling fluid conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217030845U true CN217030845U (en) | 2022-07-22 |
Family
ID=82443556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123337422.2U Active CN217030845U (en) | 2021-12-28 | 2021-12-28 | Pneumatic type drilling fluid conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217030845U (en) |
-
2021
- 2021-12-28 CN CN202123337422.2U patent/CN217030845U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111608965A (en) | Fracturing manifold connects device soon | |
| CN105057292A (en) | Servo hydraulic flushing system | |
| CN107131164A (en) | The hydraulic control system and method for elevating mechanism | |
| CN217030845U (en) | Pneumatic type drilling fluid conveying system | |
| CN206488054U (en) | A kind of pressure release reflux for pump discharge | |
| CN204692203U (en) | A kind of hydraulic lifting and automatic controller | |
| CN206339442U (en) | Hydraulic pressure intelligently loads detection means | |
| CN215166051U (en) | Pressure-stabilizing water supply system | |
| CN212565327U (en) | Negative pressure pipe network monitoring station | |
| CN212455006U (en) | Fracturing manifold connects device soon | |
| CN207454022U (en) | A kind of underground coal mine water pump without bottom valve drainage system | |
| CN209352596U (en) | A kind of reflux regulator | |
| CN109372734B (en) | Liquid supply system based on multiple pump stations | |
| CN209212527U (en) | A kind of intelligent control device for small and medium-sized pumping station | |
| CN207362923U (en) | A kind of rural area lift pumping station Simple Control System | |
| CN217950811U (en) | Remote hydraulic control system for fracturing operation | |
| CN206929096U (en) | A kind of parallel water pump device | |
| CN205977644U (en) | Remote control system of water pump | |
| CN220450991U (en) | Novel frequency conversion booster water supply equipment | |
| CN210068486U (en) | Novel efficient energy-saving vacuum jet diversion device of underground main drainage pump | |
| CN218088956U (en) | A system of falling material for neopentyl glycol tank field | |
| CN213235480U (en) | Press-in type water pump and suction type water pump combined starting device | |
| CN216653533U (en) | Intelligent feeding system of filter press | |
| CN211544665U (en) | Pressure control device for oil tank sealed by machine | |
| CN217354689U (en) | Remote water pump control integrated device for well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |