Remote control system and shunting manifold pry

Abstract

The utility model discloses a remote control system and a shunting manifold pry, and relates to the technical field of fracturing construction, the remote control system comprises an oil tank, an oil inlet path, an oil return path, an electromagnetic directional valve, a hydraulic valve, a controller and a hydraulic control platform, the oil return path is communicated with the oil tank; the electromagnetic reversing valve can connect or disconnect the oil inlet path and the hydraulic valve, and can connect or disconnect the oil return path and the hydraulic valve; the oil inlet path comprises a hydraulic pump and a check valve which are connected in series, an oil inlet of the hydraulic pump is communicated with the oil tank, and the hydraulic pump and the hydraulic console are both in electric signal connection with the controller; the controller can transmit a start-stop signal to the hydraulic pump to drive the hydraulic pump to start and stop, and can transmit a control signal to the hydraulic console to drive the electromagnetic reversing valve to change positions; according to the technical scheme, the safety of workers can be ensured, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing construction, in particular to a remote control system and a diversion manifold skid. Background Art

[0002] The diversion manifold is mainly used in platform wells and is an essential equipment for zipper-type fracturing construction. During the operation, the high-pressure fracturing fluid pumped from multiple fracturing vehicles is collected into the high- and low-pressure manifolds through the discharge manifold, and then diverted through the diversion manifold and injected into each fracturing wellhead. Among them, the opening and closing of the diversion pipe is mainly driven by a hydraulic valve. The existing hydraulic valve is mainly operated on-site using a hydraulic control console. The distance between the hydraulic control console and the hydraulic gate valve is relatively close, which has the problems of inconvenient operation and high safety risks.

[0003] Therefore, it is necessary to provide a new remote control system and a diversion manifold skid to solve the above technical problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a remote control system and a shunt manifold skid, aiming to solve the problems of inconvenient operation and high safety risks in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model proposes a remote control system, comprising an oil tank, an oil inlet oil circuit, an oil return oil circuit, an electromagnetic reversing valve, a hydraulic valve, a controller and a hydraulic control console, wherein the oil return oil circuit is connected to the oil tank; the electromagnetic reversing valve can connect or disconnect the oil inlet oil circuit and the hydraulic valve, and can connect or disconnect the oil return oil circuit and the hydraulic valve;

[0006] The oil inlet circuit includes a hydraulic pump and a check valve arranged in series, the oil inlet of the hydraulic pump is connected to the oil tank, and the hydraulic pump and the hydraulic control panel are both connected to the controller via electrical signals; the controller can transmit a start / stop signal to the hydraulic pump to drive the hydraulic pump to start and stop, and can transmit a control signal to the hydraulic control panel to drive the electromagnetic reversing valve to change position.

[0007] In one embodiment, the remote control system further comprises a relief valve, an oil inlet of the relief valve is communicated with an oil outlet of the hydraulic pump, and an oil outlet of the relief valve is communicated with the oil tank.

[0008] In one embodiment, the remote control system further comprises a monitoring module, which is disposed in the oil inlet circuit and is electrically connected to the controller, and is used for monitoring the oil pressure of the hydraulic oil after passing through the check valve in real time.

[0009] In one embodiment, the monitoring module includes a pressure sensor and an accumulator. The pressure sensor is arranged in the oil inlet circuit and is electrically connected to the controller. The pressure sensor is used to detect the oil pressure of the hydraulic oil after passing through the check valve. The oil inlet of the accumulator is connected to the oil outlet of the check valve, and the oil outlet of the accumulator is connected to the oil tank.

[0010] In one embodiment, the number of the monitoring modules is two, the two monitoring modules are arranged in parallel in the oil inlet circuit, and a pressure reducing valve is arranged between the two monitoring modules.

[0011] In one embodiment, the electromagnetic reversing valve has a left position, a middle position and a right position; when the electromagnetic reversing valve is in the left position, the oil inlet circuit is connected to the rod chamber of the hydraulic valve, and the oil return circuit is connected to the rodless chamber of the hydraulic valve; when the electromagnetic reversing valve is in the middle position, the oil inlet circuit and the oil return circuit are both disconnected from the hydraulic valve; when the electromagnetic reversing valve is in the right position, the oil inlet circuit is connected to the rodless chamber of the hydraulic valve, and the oil return circuit is connected to the rod chamber of the hydraulic valve.

[0012] In one embodiment, the electromagnetic reversing valve is connected to the hydraulic valve through an oil pipe, and both the oil pipe and the oil inlet circuit are provided with pressure gauges.

[0013] In addition, the utility model also provides a flow distribution manifold skid, comprising:

[0014] Base;

[0015] A manual gate valve and a hydraulic gate valve, wherein the manual gate valve and the hydraulic gate valve are both arranged on the base;

[0016] In the remote control system as described above, the hydraulic valve is arranged on the hydraulic gate valve and is used to control the opening or closing of the hydraulic gate valve.

[0017] In one embodiment, the branch manifold skid further includes a support leg, and the support leg is movably disposed on the base.

[0018] In one embodiment, the manual gate valve and the hydraulic gate valve are both provided with sand cleaning holes, and the sand cleaning holes are provided with sealing covers.

[0019] The technical solution of the utility model is that the worker can transmit a signal to the hydraulic pump and the hydraulic control station through the controller at the far end of the hydraulic valve, thereby controlling the extension and contraction of the hydraulic valve to open or close the hydraulic gate valve, which enables the worker to open or close the hydraulic gate valve without moving to the vicinity of the hydraulic gate valve, thereby ensuring the safety of the worker and improving the convenience of operation. In an embodiment of the utility model, the controller is installed at the far end of the hydraulic valve, and the hydraulic pump and the hydraulic control station are both connected to the controller by electrical signals, and the extension and contraction of the hydraulic valve is controlled by the control oil circuit composed of the oil inlet oil circuit, the oil return oil circuit and the electromagnetic reversing valve; during operation, the worker can transmit a start signal to the hydraulic pump through the controller installed at the far end of the hydraulic valve to start the hydraulic pump, and at the same time transmit a control signal to the hydraulic control station to drive the electromagnetic reversing valve to shift, so that the oil inlet oil circuit and the oil return oil circuit are simultaneously connected to the hydraulic valve, and the hydraulic valve can be extended and contracted under the action of hydraulic oil to open or close the hydraulic gate valve. The opening and closing of the hydraulic gate valve is controlled by a controller installed at a distance from the hydraulic valve, which enables workers to open and close the hydraulic gate valve without having to move close to the hydraulic valve, thereby ensuring the safety of the workers and improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A control schematic diagram of the remote control system provided by the utility model;

[0022] Figure 2 A schematic diagram of the structure of the flow distribution manifold skid provided by the utility model;

[0023] Figure 3 A side view of the manifold skid (without the cover) provided by the utility model;

[0024] Figure 4 This is a cross-sectional view of the connection between the hydraulic gate valve and the hydraulic valve provided by the utility model.

[0025] Description of Figure Numbers:

[0026] 100. Remote control system;

[0027] 110, oil tank; 120, oil inlet circuit; 121, hydraulic pump; 122, check valve; 123, pressure reducing valve; 130, oil return circuit; 140, solenoid reversing valve; 141, oil pipe; 142, pressure gauge; 150, hydraulic valve; 160, controller; 170, hydraulic control console; 180, overflow valve; 190, monitoring module; 191, pressure sensor; 192, accumulator;

[0028] 200. Diversion manifold skid;

[0029] 210, base; 220, manual gate valve; 221, sand cleaning hole; 230, hydraulic gate valve; 231, valve body; 2311, diversion channel; 232, blocking block; 240, support leg.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] In the related art, the opening and closing of the diverter pipe is mainly driven by a hydraulic valve. The existing hydraulic valve is mainly operated on-site by a hydraulic control panel, that is, it is controlled by a hydraulic control panel installed near the hydraulic valve. This will cause the distance between the hydraulic control panel and the hydraulic gate valve to be closer. When workers control the extension and retraction of the hydraulic valve through the hydraulic control panel, there is a safety hazard. Moreover, when workers need to control the extension and retraction of the hydraulic valve, they need to move to the side of the hydraulic control panel every time, which makes the operation less convenient.

[0036] The utility model provides a remote control system and a flow distribution manifold skid, aiming to solve the problems of inconvenient operation and high safety risk in the prior art.

[0037] See also Figure 1 In one embodiment of the utility model, the remote control system 100 includes an oil tank 110, an oil inlet circuit 120, an oil return circuit 130, an electromagnetic reversing valve 140, a hydraulic valve 150, a controller 160 and a hydraulic control station 170, the oil return circuit 130 is connected to the oil tank 110; the electromagnetic reversing valve 140 can connect or disconnect the oil inlet circuit 120 and the hydraulic valve 150, and can connect or disconnect the oil return circuit 130 and the hydraulic valve 150; the oil inlet circuit 120 includes a hydraulic pump 121 and a check valve 122 arranged in series, the oil inlet of the hydraulic pump 121 is connected to the oil tank 110, and the hydraulic pump 121 and the hydraulic control station 170 are both connected to the controller 160 by electrical signals; the controller 160 can transmit a start / stop signal to the hydraulic pump 121 to drive the hydraulic pump 121 to start and stop, and can transmit a control signal to the hydraulic control station 170 to drive the electromagnetic reversing valve 140 to change position. The hydraulic control console 170 is installed near the hydraulic valve 150 , and the controller 160 is installed far from the hydraulic valve 150 . For example, the controller 160 can be installed in a central control room, a remote terminal device, or the like.

[0038] The technical solution of the utility model is to set up a controller 160 and a control oil circuit far away from the hydraulic valve 150. Workers can transmit start and stop signals to the hydraulic pump 121 through the controller 160 at a distance from the hydraulic valve 150, and transmit control signals to the hydraulic control console 170 to control the extension and retraction of the hydraulic valve 150, and then open or close the hydraulic gate valve 230. This makes it possible for workers to open or close the hydraulic gate valve 230 without moving to the vicinity of the hydraulic gate valve 230, thereby ensuring the safety of workers and improving the convenience of operation. In an embodiment of the utility model, the controller 160 is installed at a distance from the hydraulic valve 150, and the hydraulic pump 121 and the hydraulic control console 170 are both connected to the controller 160 by electrical signals; the electromagnetic reversing valve 140 can connect the oil inlet circuit 120 and the hydraulic valve 150, and at the same time connect the oil return circuit 130 and the hydraulic valve 150. At this time, the hydraulic pump 121 can pump hydraulic oil to drive the hydraulic valve 150 to retract and retract, and the electromagnetic reversing valve 140 can disconnect the oil inlet circuit 120 and the hydraulic valve 150, and at the same time disconnect the oil return circuit 130 and the hydraulic valve 150. At this time, the hydraulic pump 121 cannot pump hydraulic oil, and the hydraulic valve 150 stops running. During operation, the worker can transmit a start signal to the hydraulic pump 121 through the controller 160 installed at a distance from the hydraulic valve 150 to start the hydraulic pump 121, and at the same time transmit a control signal to the hydraulic control console 170 to drive the electromagnetic reversing valve 140 to change position, so that the oil inlet oil circuit 120 and the oil return oil circuit 130 are simultaneously connected to the hydraulic valve 150. At this time, the hydraulic pump 121 can pump hydraulic oil to drive the hydraulic valve 150 to retract and retract, thereby opening or closing the hydraulic gate valve 230; and the worker can transmit a stop signal to the hydraulic pump 121 through the controller 160 installed at a distance from the hydraulic valve 150 to stop the hydraulic pump 121, and at the same time transmit a control signal to the hydraulic control console 170 to drive the electromagnetic reversing valve 140 to change position, so that the oil inlet oil circuit 120 and the oil return oil circuit 130 are simultaneously disconnected from the hydraulic valve 150. At this time, the hydraulic pump 121 cannot pump hydraulic oil, and the hydraulic valve 150 stops running. The opening and closing of the hydraulic gate valve 230 is controlled by the controller 160 installed at a distance from the hydraulic valve 150, so that workers do not need to move close to the hydraulic valve 150 when opening and closing the hydraulic gate valve 230, thereby ensuring the safety of workers and improving the convenience of operation. In a specific embodiment, the controller 160 may be a programmable logic controller 160 (abbreviated as: PLC).

[0039] See also Figure 1In one embodiment of the utility model, the remote control system 100 further includes a relief valve 180, the oil inlet of the relief valve 180 is connected to the oil outlet of the hydraulic pump 121, and the oil outlet of the relief valve 180 is connected to the oil tank 110. The relief valve 180 plays a role in protecting the control oil circuit. When the oil pressure in the control oil circuit exceeds a preset value, the relief valve 180 conducts the hydraulic pump 121 and the oil tank 110, so that the hydraulic oil pumped by the hydraulic pump 121 directly flows back to the oil tank 110. In a specific embodiment, the maximum oil pressure that the relief valve 180 can withstand is 22Mpa, that is, when the oil pressure in the control oil circuit exceeds 22Mpa, the relief valve 180 conducts the hydraulic pump 121 and the oil tank 110, so that the hydraulic oil pumped by the hydraulic pump 121 directly flows back to the oil tank 110.

[0040] See also Figure 1 In one embodiment of the utility model, the remote control system 100 further includes a monitoring module 190, which is disposed in the oil inlet circuit 120 and is electrically connected to the controller 160. The monitoring module 190 is used to monitor the oil pressure of the hydraulic oil after the check valve 122 in real time. The monitoring module 190 can monitor the oil pressure of the hydraulic oil after the check valve 122 in real time and transmit the oil pressure signal to the controller 160. The controller 160 can control the hydraulic pump 121 according to the oil pressure signal monitored by the monitoring module 190, so that the hydraulic pump 121 remains on or is turned off, thereby causing the hydraulic valve 150 to retract or stop the hydraulic valve 150. In a specific embodiment, during operation, a worker transmits a start signal to the hydraulic pump 121 through the controller 160. After the hydraulic pump 121 is started, when the oil pressure of the hydraulic oil detected by the monitoring module 190 is between 16Mpa and 20Mpa, the controller 160 still transmits a start signal to the hydraulic pump 121 to keep the hydraulic pump 121 turned on; when the oil pressure of the hydraulic oil detected by the monitoring module 190 is higher than 20Mpa, the controller 160 transmits a stop signal to the hydraulic pump 121 to stop the hydraulic pump 121.

[0041] See also Figure 1In one embodiment of the utility model, the monitoring module 190 includes a pressure sensor 191 and an accumulator 192. The pressure sensor 191 is arranged in the oil inlet circuit 120 and is electrically connected to the controller 160. The pressure sensor 191 is used to detect the oil pressure of the hydraulic oil after passing through the check valve 122. The oil inlet of the accumulator 192 is connected to the oil outlet of the check valve 122, and the oil outlet of the accumulator 192 is connected to the oil tank 110. The pressure sensor 191 can detect the oil pressure of the hydraulic oil after passing through the check valve 122 and transmit the oil pressure signal to the controller 160. The accumulator 192 plays a role in protecting the control oil circuit. Its principle is similar to that of a capacitor. Specifically, when the oil pressure in the control oil circuit exceeds a preset value, the accumulator 192 can directly connect the oil inlet circuit 120 and the oil tank 110, so that the hydraulic oil in the oil inlet circuit 120 directly flows back to the oil tank 110.

[0042] See also Figure 1 In one embodiment of the utility model, the number of monitoring modules 190 is two, and the two monitoring modules 190 are arranged in parallel in the oil inlet circuit 120, and a pressure reducing valve 123 is arranged between the two monitoring modules 190. The controller 160 can simultaneously receive the oil pressure monitored by the two monitoring modules 190, and control the hydraulic pump 121 to keep the hydraulic pump 121 turned on or turn off the hydraulic pump 121. Specifically, the pressure sensor 191 of the monitoring module 190 arranged between the check valve 122 and the pressure reducing valve 123 is used to detect the oil pressure of the hydraulic oil after passing through the check valve 122, and the pressure sensor 191 of the monitoring module 190 arranged between the pressure reducing valve 123 and the electromagnetic reversing valve 140 is used to detect the oil pressure of the hydraulic oil after passing through the pressure reducing valve 123. In a specific embodiment, the number of accumulators 192 of the monitoring module 190 arranged between the check valve 122 and the pressure reducing valve 123 is four, and the inflation pressure of the four accumulators 192 is 10Mpa; the number of accumulators 192 of the monitoring module 190 arranged between the pressure reducing valve 123 and the electromagnetic reversing valve 140 is two, and the inflation pressure of the two accumulators 192 is 6Mpa.

[0043] In one embodiment of the utility model, the electromagnetic reversing valve 140 has a left position, a middle position and a right position; when the electromagnetic reversing valve 140 is in the left position, the oil inlet circuit 120 is connected with the rod chamber of the hydraulic valve 150, and the oil return circuit 130 is connected with the rodless chamber of the hydraulic valve 150; when the electromagnetic reversing valve 140 is in the middle position, the oil inlet circuit 120 and the oil return circuit 130 are both disconnected from the hydraulic valve 150; when the electromagnetic reversing valve 140 is in the right position, the oil inlet circuit 120 is connected with the rodless chamber of the hydraulic valve 150, and the oil return circuit 130 is connected with the rod chamber of the hydraulic valve 150. When the electromagnetic reversing valve 140 is in the left position, that is, the electromagnetic reversing valve 140 is connected to the control oil circuit, the hydraulic oil in the oil tank 110 enters the rod chamber of the hydraulic valve 150 through the oil inlet oil circuit 120 and the electromagnetic reversing valve 140 in turn under the pumping of the hydraulic pump 121, and the hydraulic oil in the rodless chamber of the hydraulic valve 150 returns to the oil tank 110 through the oil return oil circuit 130; when the electromagnetic reversing valve 140 is in the middle position, that is, the middle position of the electromagnetic reversing valve 140 is connected to the control oil circuit, the hydraulic oil in the oil tank 110 enters the rod chamber of the hydraulic valve 150 through the oil inlet oil circuit 120 and the electromagnetic reversing valve 140 in turn under the pumping of the hydraulic pump 121, and the hydraulic oil in the rodless chamber of the hydraulic valve 150 returns to the oil tank 110 through the oil return oil circuit 130. When the oil circuit is controlled, the oil inlet circuit 120 and the oil return circuit 130 are both disconnected from the hydraulic valve 150; when the electromagnetic reversing valve 140 is in the right position, that is, when the right position of the electromagnetic reversing valve 140 is connected to the control oil circuit, the hydraulic oil in the oil tank 110 enters the rodless chamber of the hydraulic valve 150 through the oil inlet circuit 120 and the electromagnetic reversing valve 140 in sequence under the pumping of the hydraulic pump 121, and the hydraulic oil in the rod chamber of the hydraulic valve 150 flows back to the oil tank 110 through the oil return circuit 130. In a specific embodiment, the electromagnetic reversing valve 140 can be a three-position four-way electromagnetic reversing valve.

[0044] See also Figure 1 In one embodiment of the utility model, the electromagnetic reversing valve 140 is connected to the hydraulic valve 150 through the oil pipe 141, and the oil pipe 141 and the oil inlet oil circuit 120 are both provided with a pressure gauge 142. The pressure gauge 142 provided on the oil pipe 141 connecting the electromagnetic reversing valve 140 and the hydraulic valve 150 can detect the oil pressure in the oil pipe 141 in real time, so that the workers can observe and confirm whether the oil pressure is within the safe range; the pressure gauge 142 provided on the oil inlet oil circuit 120 can detect the oil pressure in the oil inlet oil circuit 120 in real time, so that the workers can observe and confirm whether the oil pressure is within the safe range.

[0045] See also Figure 2 The utility model also proposes a shunt manifold skid 200, which includes a base 210, a manual gate valve 220, a hydraulic gate valve 230 and the remote control system 100 as described above. The manual gate valve 220 and the hydraulic gate valve 230 are both arranged on the base 210, and the hydraulic valve 150 is arranged on the hydraulic gate valve 230 and is used to control the opening or closing of the hydraulic gate valve 230.

[0046] The specific structure of the remote control system 100 refers to the above embodiment. Since the shunt manifold skid 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. In addition, the setting of the manual gate valve 220 enables the shunt manifold skid 200 to manually open or close the shunt pipe. When the hydraulic gate valve 230 fails, the manual gate valve 220 can be manually operated to manually open or close the shunt pipe.

[0047] See also Figure 2 and Figure 3 In one embodiment of the utility model, the shunt manifold skid 200 further includes a leg 240, which is escalably disposed on the base 210. By means of the leg 240 escalably disposed on the base 210, the height of the shunt manifold skid 200 can be adjusted to facilitate workers to connect the manifolds, and the shunt manifold skid 200 can also be adapted to different regular environments to improve the scope of application. In a specific embodiment, a drive motor is disposed on the base 210, and the drive motor drives the leg 240 to rise and fall through a screw rod; and the number of the leg 240 is multiple, and each leg 240 can be raised and lowered individually.

[0048] See also Figure 3 In one embodiment of the utility model, the manual gate valve 220 and the hydraulic gate valve 230 are both provided with a sand cleaning hole 221, and a cover is provided at the sand cleaning hole 221. When cleaning sand and gravel, the worker can remove the cover and clean the sand and gravel in the manual gate valve 220 and the hydraulic gate valve 230 through the sand cleaning port, which can realize online sand cleaning, improve work efficiency, and clean out the sand and gravel in time, which can better protect the diversion manifold skid 200 and increase its service life.

[0049] See also Figure 4 In a specific embodiment, the hydraulic valve 150 is installed on the hydraulic gate valve 230, the hydraulic gate valve 230 includes a valve body 231 and a blocking block 232, the valve body 231 is provided with a diversion channel 2311, the blocking block 232 is connected to the telescopic rod of the hydraulic valve 150, and the hydraulic valve 150 can drive the blocking block 232 to move to block the diversion channel 2311 or make the diversion channel 2311 conductive.

[0050] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A remote control system, characterized in that: The invention comprises an oil tank (110), an oil inlet oil circuit (120), an oil return oil circuit (130), an electromagnetic reversing valve (140), a hydraulic valve (150), a controller (160) and a hydraulic control console (170); the oil return oil circuit (130) is connected to the oil tank (110); the electromagnetic reversing valve (140) can connect or disconnect the oil inlet oil circuit (120) and the hydraulic valve (150), and can connect or disconnect the oil return oil circuit (130) and the hydraulic valve (150); The oil inlet circuit (120) comprises a hydraulic pump (121) and a check valve (122) which are arranged in series. The oil inlet of the hydraulic pump (121) is in communication with the oil tank (110). The hydraulic pump (121) and the hydraulic control panel (170) are both electrically connected to the controller (160). The controller (160) can transmit a start / stop signal to the hydraulic pump (121) to drive the hydraulic pump (121) to start and stop, and can transmit a control signal to the hydraulic control panel (170) to drive the electromagnetic reversing valve (140) to change position.

2. The remote control system according to claim 1, characterized in that: The remote control system further comprises a relief valve (180), the oil inlet of the relief valve (180) being in communication with the oil outlet of the hydraulic pump (121), and the oil outlet of the relief valve (180) being in communication with the oil tank (110).

3. The remote control system according to claim 1, characterized in that: The remote control system further comprises a monitoring module (190), wherein the monitoring module (190) is arranged on the oil inlet circuit (120) and is electrically connected to the controller (160), and the monitoring module (190) is used to monitor the oil pressure of the hydraulic oil after passing through the check valve (122) in real time.

4. The remote control system according to claim 3, characterized in that: The monitoring module (190) comprises a pressure sensor (191) and an accumulator (192); the pressure sensor (191) is arranged in the oil inlet circuit (120) and is electrically connected to the controller (160); the pressure sensor (191) is used to detect the oil pressure of the hydraulic oil after passing through the check valve (122); the oil inlet of the accumulator (192) is connected to the oil outlet of the check valve (122); and the oil outlet of the accumulator (192) is connected to the oil tank (110).

5. The remote control system according to claim 3, characterized in that: The number of the monitoring modules (190) is two, the two monitoring modules (190) are arranged in parallel on the oil inlet circuit (120), and a pressure reducing valve (123) is arranged between the two monitoring modules (190).

6. The remote control system according to claim 1, characterized in that: The electromagnetic reversing valve (140) has a left position state, a middle position state and a right position state; when the electromagnetic reversing valve (140) is in the left position state, the oil inlet circuit (120) is connected to the rod chamber of the hydraulic valve (150), and the oil return circuit (130) is connected to the rodless chamber of the hydraulic valve (150); when the electromagnetic reversing valve (140) is in the middle position state, the oil inlet circuit (120) and the oil return circuit (130) are both disconnected from the hydraulic valve (150); when the electromagnetic reversing valve (140) is in the right position state, the oil inlet circuit (120) is connected to the rodless chamber of the hydraulic valve (150), and the oil return circuit (130) is connected to the rod chamber of the hydraulic valve (150).

7. The remote control system according to any one of claims 1 to 6, characterized in that: The electromagnetic reversing valve (140) is connected to the hydraulic valve (150) via an oil pipe (141), and both the oil pipe (141) and the oil inlet circuit (120) are provided with a pressure gauge (142).

8. A manifold skid, characterized in that: include: Base (210); A manual gate valve (220) and a hydraulic gate valve (230), wherein the manual gate valve (220) and the hydraulic gate valve (230) are both arranged on the base (210); According to the remote control system as described in any one of claims 1 to 7, the hydraulic valve (150) is arranged on the hydraulic gate valve (230) and is used to control the opening or closing of the hydraulic gate valve (230).

9. The flow manifold skid according to claim 8, characterized in that: The branch manifold skid further includes a support leg (240), and the support leg (240) is movably disposed on the base (210).

10. The flow manifold skid according to claim 8, characterized in that: The manual gate valve (220) and the hydraulic gate valve (230) are both provided with a sand cleaning hole (221), and a sealing cover is provided at the sand cleaning hole (221).

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