CN216157836U - Water injection pump intelligence management and control device with protect function - Google Patents

Water injection pump intelligence management and control device with protect function Download PDF

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Publication number
CN216157836U
CN216157836U CN202121528571.4U CN202121528571U CN216157836U CN 216157836 U CN216157836 U CN 216157836U CN 202121528571 U CN202121528571 U CN 202121528571U CN 216157836 U CN216157836 U CN 216157836U
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China
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injection pump
water injection
plate
water
management
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CN202121528571.4U
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Chinese (zh)
Inventor
柏宗宪
柏宗翰
伍志敏
姚江龙
王腾飞
马涛
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China University of Petroleum East China
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China University of Petroleum East China
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Abstract

The application discloses water injection pump intelligence management and control device with protect function, including limiting plate, roof, clamp plate, management and control case, transmission module, management and control module, curb plate, bracket, bracing piece, power module, telescopic link, base, card strip, fixed plate, snap ring, connecting pipe, bottom plate, place board, water tank, L type pipe, regulating block, drain pipe, water injection pump shell, adjusting baffle, fixed stop, gag lever post, the lantern ring and water pump. The telescopic rod can adjust the height of the placing plate, the clamping strip and the lantern ring can limit and protect the shell of the water injection pump, and the limiting plate and the fixing plate can reduce collision damage when the shell of the water injection pump is used; the support rod and the bracket can support the bottom of the control box, the pressure plate and the side plate are favorable for buffer protection of the control box, the power supply module and the control box are favorable for control of electrical elements, and the mechanization degree of the device is improved; the adjusting baffle can be used for buffering and adjusting water flow, so that the water flow is guided conveniently, the water storage of the whole device can be realized by the water tank, and the use of a shell of the water injection pump is facilitated.

Description

Water injection pump intelligence management and control device with protect function
Technical Field
The application relates to the field of oil exploitation, in particular to an intelligent water injection pump management and control device with a protection function.
Background
The coal seam water injection pump is mainly used for coal seam water injection in coal mines. Through water injection, the coal body can be moistened, gas is discharged, dust is prevented from being raised, and safe production is guaranteed. Meanwhile, the coal bed is loosened, and the coal mining efficiency is improved.
The great difficult removal of management and control device volume is used, when installing the water injection pump on the management and control device, lack the spacing protection architecture to the water injection pump, the water injection pump shell is collision damage in the use easily, when the water injection pump relies on the manual work to control, degree of mechanization is lower, be difficult for realizing the management and control of water injection pump, the management and control structure lacks the buffering protection architecture, and the water injection pump is inconvenient to rivers buffering regulation, be difficult for the water storage on the management and control device, also be difficult to connect and the direction to rivers, influence the use of water injection pump. Therefore, a water injection pump intelligent management and control device with a protection function is provided aiming at the problems.
Disclosure of Invention
The water injection pump intelligence management and control device with protect function is provided in this embodiment for solving among the prior art that the management and control device is difficult for spacing protection, the management and control structure lacks protective structure to the water injection pump, and the difficult water storage of management and control device is connected the direction to rivers, influences the problem that the water injection pump used.
According to one aspect of the application, the intelligent water injection pump management and control device with the protection function comprises a placing plate, a limiting protection mechanism and a buffer adjusting mechanism, wherein a base is clamped at the top of the placing plate, and a water injection pump shell is fixedly connected to the base;
the limiting protection mechanism comprises a limiting plate, a bracket and a fixing plate, the limiting plate is fixedly connected to the top of the fixing plate, the fixing plate is clamped on the placing plate, the fixing plate is penetrated through by a limiting rod, one end of the limiting rod is fixedly connected with a sleeve ring, the bracket is fixedly connected to the top of the supporting rod, and a control box is installed inside the bracket;
the buffer adjusting mechanism is arranged on the right side of the connecting pipe, the bottom of the placing plate is provided with a bottom plate through a telescopic rod, wheels are sleeved on two sides of the bottom plate, and the thickness of the bottom plate is smaller than that of the placing plate.
Further, the bracing piece rigid coupling is placing the board top, it has power module to place the gomphosis on the board, power module is located the bracket below, adopt electric connection between power module and the management and control case, management and control case both sides all overlap joint has the curb plate, the curb plate passes through the arc shell fragment rigid coupling inboard at the bracket.
Furthermore, the top of the bracket is clamped with a top plate, the inner side of the top plate is fixedly connected with a pressing plate, the pressing plate is lapped above the control box, the inside of the control box is fixedly connected with a transmission module, one side of the transmission module is fixedly connected with a control module, and the control module is fixedly connected to the inner wall of the control box.
Further, the gomphosis has the drain pipe on the limiting plate, the drain pipe is located water injection pump shell top, the card strip is installed to water injection pump shell bottom, card strip block is at water injection pump shell and place between the board, the card strip is totally two.
Further, the lantern ring is arc-shaped, the lantern ring is clamped on one side of the water injection pump shell, a clamping ring is arranged above the lantern ring, the clamping ring is sleeved outside the water drainage pipe, and the clamping ring is clamped on the fixing plate.
Further, place board right side top block and have the water tank, the inside rigid coupling of water tank has the filter screen, just the water tank is located the board of placing and keeps away from one side of fixed plate.
Further, buffering adjustment mechanism includes regulating block, adjusting baffle and fixed stop, regulating block inner chamber bottom rigid coupling has fixed stop, adjusting baffle is installed to the fixed stop top, adjusting baffle cup joints on the regulating block, rotate between adjusting baffle and the regulating block and be connected, adjusting baffle left side rigid coupling has the output shaft of motor.
Furthermore, the left side of the adjusting block is sleeved on a connecting pipe, the connecting pipe is fixedly connected to the right side of the shell of the water injection pump, a motor is fixedly connected to the connecting pipe, the diameter of the connecting pipe is larger than that of the L-shaped pipe, and the left end of the L-shaped pipe is sleeved in the adjusting block.
Further, a water pump is fixedly connected to the placing plate and located on one side of the water tank, an L-shaped pipe is fixedly connected to the top of the placing plate, and the water pump is connected with the water tank through a water pipe.
Further, install the telescopic link between placing board and the bottom plate, pass through threaded connection between interior pole and the outer pole of telescopic link, the outer pole rigid coupling is in placing the board bottom, interior pole bottom cup joints on the bottom plate.
Through the above-mentioned embodiment of this application, adopted spacing protection mechanism and buffering adjustment mechanism, solved the management and control device and be difficult for spacing protection to the water injection pump, the management and control structure lacks protective structure, and the difficult water storage of management and control device is connected the direction to rivers, influences the problem that the water injection pump used, has gained that it is effectual to the spacing protection of water injection pump, to management and control structure buffering protection, the management and control device realizes the connection direction to rivers, does benefit to the effect that the water injection pump used.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;
fig. 3 is a schematic view of an internal structure of a management and control box according to an embodiment of the present application;
FIG. 4 is a schematic view of an embodiment of an adjustable baffle according to the present application;
fig. 5 is a schematic structural diagram of a water pump according to an embodiment of the present application.
In the figure: 1. limiting plate, 2, the roof, 3, the clamp plate, 4, the management and control case, 401, transmission module, 402, the management and control module, 5, the curb plate, 6, the bracket, 7, the bracing piece, 8, power module, 9, the telescopic link, 10, the base, 11, the card strip, 12, the fixed plate, 1201, the snap ring, 13, the connecting pipe, 14, the bottom plate, 15, place the board, 16, the water tank, 17, the L type pipe, 18, the regulating block, 19, the drain pipe, 20, the water injection pump shell, 21, adjusting stop, 22, fixed stop, 23, the gag lever post, 24, the lantern ring, 25, the water pump.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The intelligent management and control device in this embodiment may be applicable to various water injection pumps, for example, the following water injection pump is provided in this embodiment, and the intelligent management and control device in this embodiment may be used to manage and control the following water injection pump.
The water injection pump comprises a motor, a tire coupler, a gear box, a safety valve, a crankcase, a pump head, an overflow valve and a bottom bracket.
The motor and the crankcase are fixed on the bottom bracket, and the crankcase is connected with the gear box and then is connected with the motor through a tire coupler;
the crankcase comprises a crankshaft assembly and a high-pressure steel bushing assembly which are connected through a sliding block assembly, the high-pressure steel bushing assembly is connected with a high-pressure liquid collecting block through a pump head assembly, and the sliding block assembly and the crankshaft assembly are arranged in the box body.
The high-pressure steel sleeve assembly comprises a plunger, a high-pressure cylinder sleeve and a guide sleeve, wherein the plunger penetrates through the high-pressure cylinder sleeve and the guide sleeve, the high-pressure cylinder sleeve and the guide sleeve are fixedly connected through a locking nut and a nut, and the diameter of the plunger is 37 mm.
In the prior art, the pressure of a coal seam deep water injection pump can not reach 50MPa, the pressure of a swash plate type coal seam deep water injection pump is 16MPa under the general condition, the flow rate is 75L/min, and the problem of deep hard coal mining can not be solved.
The pump head is connected with the crankcase, and the overflow valve is installed on the pump head, and the relief valve is installed on the pump head upright, and the relief valve port is downward. The safety valve is an overload protection element of the pump, protects equipment when the pressure is too high, is vertically installed, can avoid injury to personnel and articles due to the fact that a valve port of the safety valve is downward once pressure is abnormal, and effectively improves the safety of the equipment due to the fact that the safety valve is vertically installed.
The overflow valve is a pressure regulating control valve of a clear water or high water-based medium hydraulic system, and the pressure of the system is kept stable through the constant pressure overflow function of the overflow valve.
The oil pump is arranged on the gear box, and the crankshaft in the gear box is forcibly lubricated by the oil pump.
Of course, the present embodiment may also be used to control water injection pumps of other configurations. Here, details are not repeated, and the following describes the intelligent management and control device according to the embodiment of the present application.
Referring to fig. 1-5, an intelligent water injection pump management and control device with a protection function includes a placement plate 15, a limiting protection mechanism and a buffer adjustment mechanism, wherein a base 10 is fastened on the top of the placement plate 15, and a water injection pump housing 20 is fixedly connected to the base 10, so as to facilitate the installation of the base 10 on the placement plate 15;
the limiting protection mechanism comprises a limiting plate 1, a bracket 6 and a fixing plate 12, wherein the limiting plate 1 is fixedly connected to the top of the fixing plate 12, the fixing plate 12 is clamped on the placing plate 15, the fixing plate 12 is penetrated through by a limiting rod 23, one end of the limiting rod 23 is fixedly connected with a sleeve ring 24, the bracket 6 is fixedly connected to the top of a supporting rod 7, and a control box 4 is arranged in the bracket 6, so that the bracket 6 is favorable for supporting and protecting the bottom of the control box 4;
the buffer adjusting mechanism is arranged on the right side of the connecting pipe 13, the bottom of the placing plate 15 is provided with a bottom plate 14 through a telescopic rod 9, wheels are sleeved on two sides of the bottom plate 14, and the thickness of the bottom plate 14 is smaller than that of the placing plate 15, so that the whole device can be moved conveniently.
The support rod 7 is fixedly connected to the top of the placing plate 15, the placing plate 15 is embedded with the power supply module 8, the power supply module 8 is located below the bracket 6, the power supply module 8 is electrically connected with the control box 4, the side plates 5 are respectively lapped on two sides of the control box 4, the side plates 5 are fixedly connected to the inner side of the bracket 6 through arc-shaped elastic sheets, and the side plates 5 are convenient for buffer protection on two sides of the control box 4; a top plate 2 is clamped at the top of the bracket 6, a pressing plate 3 is fixedly connected to the inner side of the top plate 2, the pressing plate 3 is lapped over a control box 4, a transmission module 401 is fixedly connected to the inside of the control box 4, a control module 402 is fixedly connected to one side of the transmission module 401, and the control module 402 is fixedly connected to the inner wall of the control box 4, so that the control box 4 can conveniently control electrical components; a drain pipe 19 is embedded in the limiting plate 1, the drain pipe 19 is positioned above a water injection pump shell 20, the bottom of the water injection pump shell 20 is provided with two clamping strips 11, the clamping strips 11 are clamped between the water injection pump shell 20 and the placing plate 15, and the two clamping strips 11 facilitate the limitation of the base 10 by the clamping strips 11; the lantern ring 24 is arc-shaped, the lantern ring 24 is clamped on one side of the water injection pump shell 20, a clamping ring 1201 is arranged above the lantern ring 24, the clamping ring 1201 is sleeved outside the drain pipe 19, and the clamping ring 1201 is clamped on the fixing plate 12, so that the clamping ring 1201 can support the drain pipe 19 conveniently; a water tank 16 is clamped at the top of the right side of the placing plate 15, a filter screen is fixedly connected inside the water tank 16, and the water tank 16 is positioned on one side of the placing plate 15, which is far away from the fixing plate 12, so that the water tank 16 can store water flow conveniently; the buffer adjusting mechanism comprises an adjusting block 18, an adjusting baffle 21 and a fixed baffle 22, the fixed baffle 22 is fixedly connected to the bottom of the inner cavity of the adjusting block 18, the adjusting baffle 21 is installed above the fixed baffle 22, the adjusting baffle 21 is sleeved on the adjusting block 18, the adjusting baffle 21 is rotatably connected with the adjusting block 18, and the output shaft of a motor is fixedly connected to the left side of the adjusting baffle 21, so that the adjusting baffle 21 can rotate conveniently; the left side of the adjusting block 18 is sleeved on the connecting pipe 13, the connecting pipe 13 is fixedly connected to the right side of the water injection pump shell 20, the connecting pipe 13 is fixedly connected with a motor, the diameter of the connecting pipe 13 is larger than that of the L-shaped pipe 17, and the left end of the L-shaped pipe 17 is sleeved in the adjusting block 18, so that the L-shaped pipe 17 can be conveniently connected; a water pump 25 is fixedly connected to the placing plate 15, the water pump 25 is positioned on one side of the water tank 16, an L-shaped pipe 17 is fixedly connected to the top of the placing plate 15, and the water pump 25 is connected with the water tank 16 through a water pipe so as to facilitate drainage of water flow in the water tank 16; the telescopic rod 9 is installed between the placing plate 15 and the bottom plate 14, the inner rod and the outer rod of the telescopic rod 9 are connected through threads, the outer rod is fixedly connected to the bottom of the placing plate 15, and the bottom end of the inner rod is sleeved on the bottom plate 14, so that the height of the bottom plate 14 can be adjusted conveniently.
When the utility model is used, electrical elements appearing in the application are externally connected with a power supply and a control switch when in use, firstly, a base 10 with a water injection pump shell 20 is arranged on a placing plate 15, a clamping strip 11 is clamped to limit the base 10, a fixed plate 12 and a limiting plate 1 are arranged on one side of the placing plate 15, the water injection pump casing 20 is supported and protected, the water outlet pipe is connected on the water discharge pipe 19, water flow in the water tank 16 enters the adjusting block 18 through the water pump 25 and the L-shaped pipe 17, the adjusting baffle 21 is driven by the motor to rotate so as to buffer the water flow and realize flow adjustment of the water flow, the water flow enters the water injection pump casing 20 through the connecting pipe 13 and is discharged through the water discharge pipe 19 to realize water injection, the control module 402 in the control box 4 is a PLC controller, the work of electrical elements on the whole device can be controlled, and the bracket 6 and the top plate 2 can wrap and protect the control box 4, so that the use of the control box 4 is facilitated.
The application has the advantages that:
1. the water injection pump shell 20 is simple to operate, the bottom plate 14 is convenient for the whole device to move, the telescopic rod 9 can adjust the height of the placing plate 15, the clamping strips 11 and the lantern rings 24 can limit and protect the water injection pump shell 20, and the limiting plate 1 and the fixing plate 12 can reduce collision damage of the water injection pump shell 20 in use;
2. the water injection pump has a reasonable structure, the supporting rod 7 and the bracket 6 can support the bottom of the control box 4, the pressing plate 3 and the side plate 5 are beneficial to buffer protection of the control box 4, the power module 8 and the control box 4 are beneficial to control of electrical elements, water injection of the water injection pump shell 20 is realized, and the mechanization degree of the device is improved;
3. the adjusting block 18 and the adjusting baffle 21 can buffer and adjust water flow, the L-shaped pipe 17 and the water pump 25 are favorable for connection of the adjusting block 18 and the water tank 16, water flow guiding is facilitated, water storage of the whole device can be realized by the water tank 16, and the water injection pump shell 20 can be used conveniently.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a water injection pump intelligence management and control device with protect function which characterized in that: the water injection pump comprises a placing plate (15), a limiting protection mechanism and a buffer adjusting mechanism, wherein a base (10) is clamped at the top of the placing plate (15), and a water injection pump shell (20) is fixedly connected to the base (10);
the limiting protection mechanism comprises a limiting plate (1), a bracket (6) and a fixing plate (12), wherein the limiting plate (1) is fixedly connected to the top of the fixing plate (12), the fixing plate (12) is clamped on the placing plate (15), the fixing plate (12) is penetrated through by a limiting rod (23), one end of the limiting rod (23) is fixedly connected with a sleeve ring (24), the bracket (6) is fixedly connected to the top of a supporting rod (7), and a control box (4) is installed inside the bracket (6);
buffering adjustment mechanism installs on connecting pipe (13) right side, place board (15) bottom and install bottom plate (14) through telescopic link (9), wheel has all been cup jointed to bottom plate (14) both sides, the thickness of bottom plate (14) is less than places board (15).
2. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: bracing piece (7) rigid coupling is placing board (15) top, it has power module (8) to place gomphosis on board (15), power module (8) are located bracket (6) below, adopt electric connection between power module (8) and management and control case (4), management and control case (4) both sides all overlap joint have curb plate (5), curb plate (5) are inboard at bracket (6) through the arc shell fragment rigid coupling.
3. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: bracket (6) top block has roof (2), roof (2) inboard rigid coupling has clamp plate (3), clamp plate (3) overlap joint is in management and control case (4) top, the inside rigid coupling of management and control case (4) has transmission module (401), transmission module (401) one side rigid coupling has management and control module (402), management and control module (402) rigid coupling is on management and control case (4) inner wall.
4. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: the embedded water draining pipe (19) is embedded in the limiting plate (1), the water draining pipe (19) is located above the water injection pump shell (20), the clamping strips (11) are installed at the bottom of the water injection pump shell (20), the clamping strips (11) are clamped between the water injection pump shell (20) and the placing plate (15), and the clamping strips (11) are totally two.
5. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: the water injection pump is characterized in that the lantern ring (24) is arc-shaped, the lantern ring (24) is clamped on one side of a water injection pump shell (20), a clamping ring (1201) is arranged above the lantern ring (24), the clamping ring (1201) is sleeved outside the water discharge pipe (19), and the clamping ring (1201) is clamped on the fixing plate (12).
6. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: place board (15) right side top block and have water tank (16), the inside rigid coupling of water tank (16) has the filter screen, just water tank (16) are located place board (15) and keep away from one side of fixed plate (12).
7. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: buffering adjustment mechanism includes regulating block (18), adjusting stop (21) and fixed stop (22), regulating block (18) inner chamber bottom rigid coupling has fixed stop (22), adjusting stop (21) are installed to fixed stop (22) top, adjusting stop (21) cup joint on regulating block (18), rotate between adjusting stop (21) and regulating block (18) and be connected, adjusting stop (21) left side rigid coupling has the output shaft of motor.
8. The intelligent management and control device with the protection function for the water injection pump according to claim 7 is characterized in that: adjusting block (18) left side cup joints on connecting pipe (13), connecting pipe (13) rigid coupling is on water injection pump shell (20) right side, the rigid coupling has the motor on connecting pipe (13), the diameter of connecting pipe (13) is greater than L type pipe (17), L type pipe (17) left end cup joints in adjusting block (18).
9. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: the water pump (25) is fixedly connected to the placing plate (15), the water pump (25) is located on one side of the water tank (16), the L-shaped pipe (17) is fixedly connected to the top of the placing plate (15), and the water pump (25) is connected with the water tank (16) through a water pipe.
10. The intelligent management and control device with the protection function for the water injection pump, according to claim 1, is characterized in that: the novel multifunctional electric heating table is characterized in that a telescopic rod (9) is installed between the placing plate (15) and the bottom plate (14), an inner rod and an outer rod of the telescopic rod (9) are connected through threads, the outer rod is fixedly connected to the bottom of the placing plate (15), and the bottom end of the inner rod is sleeved on the bottom plate (14).
CN202121528571.4U 2021-07-06 2021-07-06 Water injection pump intelligence management and control device with protect function Active CN216157836U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121528571.4U CN216157836U (en) 2021-07-06 2021-07-06 Water injection pump intelligence management and control device with protect function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121528571.4U CN216157836U (en) 2021-07-06 2021-07-06 Water injection pump intelligence management and control device with protect function

Publications (1)

Publication Number Publication Date
CN216157836U true CN216157836U (en) 2022-04-01

Family

ID=80836091

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121528571.4U Active CN216157836U (en) 2021-07-06 2021-07-06 Water injection pump intelligence management and control device with protect function

Country Status (1)

Country Link
CN (1) CN216157836U (en)

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