An automatic control device for water curtain holes in a water-sealed underground storage and the water-sealed underground storage

Abstract

The present invention discloses an automatic control device for a water curtain hole of a water-sealed cavern and a water-sealed cavern, comprising: a control box, provided with an installation cavity, a measurement and control pipeline provided in the installation cavity, the measurement and control pipeline being connected to a water distribution pipe; a regulating valve, a flow meter and a water pressure sensor being installed on the measurement and control pipeline; a connecting protrusion being provided at the rear of the control box; a mounting plate, located at the rear side of the control box, provided with a mounting hole; a connecting and fixing component, which is passed through the mounting hole, and one end away from the control box is used to be embedded in and fixed to a wall hole, and the other end is provided with a connector; a connecting branch pipe, one end of which is connected to the water distribution pipe, and the other end is connected to the water curtain hole, and a first control valve is installed; a drainage branch pipe, one end of which is connected to the water distribution pipe, and a second control valve is installed. The present invention integrates the regulating valve, the flow meter and the water pressure sensor into the control box, thereby improving the reliability and stability of the system. The quick installation and fixation of the control box can be achieved through the cooperation of the connector and the connecting protrusion, and the integrated design is also convenient for later maintenance and overhaul.

Description

Technical Field

[0001] The present invention relates to the technical field of water curtain hole control, and in particular, to an automatic control device for water curtain holes in a water-sealed underground storage and the water-sealed underground storage. Background Art

[0002] As a special underground oil storage facility, the safety and stability of a water-sealed underground storage are of crucial importance. The water curtain system is an important part of the water-sealed underground storage. By forming a stable water curtain in the water curtain holes, it can effectively isolate the contact between oil and gas and air, preventing the volatilization of oil and gas and the occurrence of fire accidents. The precise control of the water curtain holes is the key to ensuring the stable operation of the water curtain system. When the pressure in the water curtain holes is small, water needs to be injected into the water curtain holes. When the pressure in the water curtain holes is large, drainage is required to reduce the water pressure. In traditional methods, components such as pressure sensors, flow meters, and regulating valves are installed dispersedly, lacking integrated protection and being easily affected by environmental factors, resulting in a reduction in the reliability of the system. And if the components such as pressure sensors, flow meters, and regulating valves are integrated, their overall installation and fixation are rather troublesome. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an automatic control device for water curtain holes in a water-sealed underground storage.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] An automatic control device for water curtain holes in a water-sealed underground storage, comprising: a control box provided with an installation cavity, in which a measurement and control pipeline is arranged. One end of the measurement and control pipeline extends out of the control box for communicating with a water supply pipe, and the other end extends out of the control box and is connected with a distribution pipe; a regulating valve, a flow meter, and a water pressure sensor are installed on the measurement and control pipeline; a connecting protrusion is provided at the rear of the control box; a mounting plate is located at the rear side of the control box and is provided with mounting holes; a connecting and fixing component passes through the mounting holes, and the end away from the control box is used for being embedded and fixed in a wall hole, and the other end is provided with a connecting head, and the connecting head cooperates with the connecting protrusion to realize the limitation of the control box; a communicating branch pipe, one end of which is communicated with the end of the distribution pipe away from the measurement and control pipeline, and the other end is communicated with the water curtain hole, and a first control valve is installed on the communicating branch pipe; a drainage branch pipe, one end of which is communicated with the end of the distribution pipe away from the measurement and control pipeline, and a second control valve is installed on the drainage branch pipe.

[0006] Further, it further comprises a locking member, which is installed between the mounting plate and the control box and is used for keeping the connecting head and the connecting protrusion in cooperation.

[0007] Further, the locking member has a locking state and an unlocking state; the locking member is movably installed between the mounting plate and the control box to realize the switching between the locking state and the unlocking state.

[0008] Furthermore, the connection and fixing assembly includes a fixed insert and a threaded rod; a tension block is connected to the rear end peripheral wall of the fixed insert, the tension block is hinged to the fixed insert, and the tension block can shrink inward so as to be inserted into the wall hole with the fixed insert; the threaded rod is threadedly connected to the fixed insert, and the threaded rod can push the tension block to expand outward so as to be in close contact with the inner wall of the wall hole.

[0009] Furthermore, the connecting head includes a connecting column, a shrinkage column and an expansion column arranged in sequence forward, and the diameter of the shrinkage column is smaller than that of the connecting column and the expansion column; the connecting protrusion is provided with an embedding groove, and the bottom of the embedding groove is provided with an opening for the expansion column to be embedded; the rear side of the embedding groove is provided with an avoidance notch, the bottom of the avoidance notch is opened and the width of the avoidance notch is adapted to the diameter of the shrinkage column; when the connecting head and the connecting protrusion are matched, the shrinkage column is embedded in the avoidance notch, and the expansion column is embedded in the embedding groove; the locking piece is a limiting cylinder, and the limiting cylinder is slidably sleeved on the connecting and fixing assembly; a spring is provided between the limiting cylinder and the mounting plate, and the spring is used to push the limiting cylinder to wrap the connecting head and the connecting protrusion so that the connecting head and the connecting protrusion remain matched.

[0010] Furthermore, a locking protrusion is provided on the inner ring at the front end of the limiting cylinder, and the locking protrusion can pass through the avoidance gap into the embedding groove or be offset from the avoidance gap and abut against the front end surface of the connecting protrusion under the action of a spring.

[0011] Furthermore, a guide cylinder is provided on the front side of the mounting plate and is arranged around the mounting hole, and the rear end of the spring is sleeved on the guide cylinder.

[0012] Furthermore, an embedding cylinder is provided at the rear end of the limiting cylinder, and the outer diameter of the embedding cylinder is larger than that of the limiting cylinder; the front end of the spring extends into the embedding cylinder; and a clamping block extending radially inward is provided at the rear end of the embedding cylinder.

[0013] Furthermore, the mounting plate is provided with a support plate, and the support plate is used to contact the bottom of the control box; the support plate and the bottom of the mounting plate are provided with reinforcing ribs.

[0014] The present invention also provides a water-sealed cavern, comprising a plurality of water-sealed cavern water curtain hole automatic control devices.

[0015] The present invention has the following beneficial effects:

[0016] The regulating valve, flowmeter, and water pressure sensor are integrated into the control box, avoiding the problem that components in the traditional decentralized installation method are vulnerable to environmental factors, and improving the reliability and stability of the system. Through the cooperation of the connector and the connecting protrusion, the rapid installation and fixation of the control box are realized, and the integrated design is also convenient for later maintenance and overhaul. By monitoring the pressure and flow in the water curtain holes in real time through the water pressure sensor and flowmeter, and combining with the precise adjustment of the regulating valve, the precise control of the water curtain holes is achieved; through the communicating branch pipe, drainage branch pipe, first control valve, and second control valve, the switching control of water injection and drainage in the water curtain holes is ensured.

[0017] In addition to the purposes, features, and advantages described above, the present invention has other purposes, features, and advantages. The following will refer to the drawings for a further detailed description of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of the control box in a disassembled state;

[0021] Figure 3 is a schematic diagram of the working principle of an embodiment of the present invention;

[0022] Figure 4 is Figure 1 the disassembled state structural diagram of

[0023] Figure 5 is Figure 4 the enlarged view at A of

[0024] Figure 6 is a schematic structural diagram of the installation plate and the connection and fixing assembly in a disassembled state;

[0025] Figure 7 is a schematic connection structure diagram of the fixed insertion cylinder and the tensioning block;

[0026] Figure 8 is a partial cross-sectional view of the connection and fixing assembly of an embodiment of the present invention;

[0027] Figure 9 is a partial cross-sectional view of the locking member in the locked state;

[0028] Figure 10 is a partial cross-sectional view of the locking member in the unlocked state.

[0029] LEGEND DESCRIPTION:

[0030] Water supply pipe 101, water curtain holes 102;

[0031] Control box 100, installation cavity 110, measurement and control pipeline 120, regulating valve 121, flowmeter 122, water pressure sensor 123, connecting protrusion 130, embedding groove 131, avoidance notch 132, box body 140, box cover 150, water distribution pipe 160;

[0032] Mounting plate 200, mounting holes 210, guiding cylinder 220, supporting plate 230, reinforcing ribs 231;

[0033] Connecting and fixing assembly 300, connecting head 310, connecting column 311, shrinking column 312, expanding column 313, stud 314, fixed insertion cylinder 320, limiting head 321, mounting opening 322, limiting inclined surface 323, threaded rod 330, first cylindrical section 331, threaded hole 332, multi - prism section 333, tensioning block 340, pushing arm 341, tensioning arm 342;

[0034] Locking member 400, clamping protrusion 410, spring 420, embedding cylinder 430, clamping block 431;

[0035] Connecting branch pipe 500, first control valve 510;

[0036] Drainage branch pipe 600, second control valve 610. Detailed implementation manners

[0037] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0040] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Please refer to Figures 1 to 3 , an automatic control device for water curtain holes in a water-sealed cavern provided in a preferred embodiment of the present invention includes a control box 100, a mounting plate 200, a connection and fixing assembly 300, a communicating branch pipe 500, and a drainage branch pipe 600.

[0042] The control box 100 is provided with a mounting cavity 110. A measurement and control pipeline 120 is arranged in the mounting cavity 110. One end of the measurement and control pipeline 120 extends out of the control box 100 for communicating with a water supply pipe 101, and the other end extends out of the control box 100 and is connected to a water distribution pipe 160. A regulating valve 121, a flowmeter 122, and a water pressure sensor 123 are installed on the measurement and control pipeline 120. A connection protrusion 130 is provided at the rear of the control box 100. Refer to Figure 2 , the control box 100 includes a box body 140 and a box cover 150. The box cover 150 is hinged to one side of the box body 140 to realize the opening and closing of the mounting cavity 110. The mounting plate 200 is located at the rear side of the control box 100, and the mounting plate 200 is provided with mounting holes 210. It can be understood that a communication module and a PCB control board are usually installed in the mounting cavity 110, and wire passing holes are also provided on the peripheral wall of the mounting cavity 110 for wire harnesses to enter to realize signal transmission and power input with the outside. It can be understood that the connection between the measurement and control pipeline 120 and the pipeline outside the control box 100 is a detachable connection to facilitate the overall disassembly and assembly of the control box 100 and the components inside the control box 100.

[0043] The connection and fixing assembly 300 passes through the mounting holes 210. One end of the connection and fixing assembly 300 away from the control box 100 is used to be embedded and fixed in a wall hole. The other end is provided with a connection head 310. The wall hole is the mounting hole position provided on the cavern wall for the connection and fixing assembly 300 to be inserted and fixed to facilitate the installation of the control box 100. The connection head 310 cooperates with the connection protrusion 130 to realize the limitation of the control box 100. Usually, multiple groups of the connection and fixing assembly 300, the mounting holes 210, and the connection protrusion 130 are provided. Through the cooperation between the connection and fixing assembly 300 and the mounting holes 210, the positioning of the connection and fixing assembly 300 is realized, so that when installing, multiple groups of connection heads 310 and connection protrusions 130 can achieve connection and cooperation simultaneously.

[0044] One end of the connecting branch pipe 500 is connected to one end of the water distribution pipe 160 away from the measurement and control pipeline 120, and the other end is connected to the water curtain hole 102. A first control valve 510 is installed on the connecting branch pipe 500; the measurement and control pipeline 120 and the water curtain hole 102 are connected through the connecting branch pipe 500 and the water distribution pipe 160. One end of the drainage branch pipe 600 is connected to one end of the water distribution pipe 160 away from the measurement and control pipeline 120, and a second control valve 610 is installed on the drainage branch pipe 600. The water pressure sensor 123 can measure the water pressure at the water curtain hole. When it is detected that the water pressure at the water curtain hole 102 is insufficient, the regulating valve 121 and the first control valve 510 can be opened, and the second control valve 610 can be closed to convey the water in the water supply pipe 101 to the water curtain hole 102. When it is detected that the water pressure at the water curtain hole 102 exceeds the set value, the regulating valve 121 and the first control valve 510 can be closed, and the second control valve 610 can be opened to realize the drainage and pressure reduction of the water curtain hole 102.

[0045] In an automatic control device for a water curtain hole in a water-sealed underground storage provided in a preferred embodiment of the present invention, the regulating valve 121, the flow meter 122, and the water pressure sensor 123 are integrated in the control box 100, avoiding the problem that components in the traditional decentralized installation method are easily affected by environmental factors, and improving the reliability and stability of the system. Through the cooperation of the connecting head 310 and the connecting protrusion 130, the quick installation and fixation of the control box 100 are realized, and the integrated design is also convenient for later maintenance and overhaul. By the real-time monitoring of the pressure and flow in the water curtain hole by the water pressure sensor 123 and the flow meter 122, combined with the precise adjustment of the regulating valve 121, the precise control of the water curtain hole is realized. Through the connecting branch pipe 500, the drainage branch pipe 600, the first control valve 510, and the second control valve 610, the switching control of water injection and drainage of the water curtain hole is ensured.

[0046] Refer to Figure 1 and Figure 2 In some embodiments of the present invention, a locking member 400 is further included. The locking member 400 is installed between the mounting plate 200 and the control box 100 and is used to limit the connecting protrusion 130 that cooperates with the connecting head 310, so that the connecting head 310 and the connecting protrusion 130 remain in cooperation, thereby realizing the stable limiting and fixing of the control box 100.

[0047] Refer to Figure 9 and Figure 10, in some embodiments of the present invention, the locking member 400 has a locked state and an unlocked state; the locking member 400 is movably installed between the mounting plate 200 and the control box 100 to realize the switching between the locked state and the unlocked state; in the locked state, the locking member 400 limits the connecting protrusion 130 that cooperates with the connecting head 310; in the unlocked state, the locking member 400 avoids the connecting protrusion 130 and disengages from the movement path of the connecting head 310, so as not to hinder the connecting protrusion 130 from disengaging from the connecting head 310, realizing the unlocking of the connecting protrusion 130, and thus realizing the disassembly of the control box 100. The unlocking is realized by the movement of the locking member 400, reducing the use of fasteners and making the disassembly and assembly more convenient and fast.

[0048] Referring to Figure 4 , Figure 5 and Figure 6 , in a further embodiment of the present invention, the connection and fixing assembly 300 includes a fixed insertion cylinder 320 and a threaded rod 330; a tensioning block 340 is connected to the peripheral wall of the rear end of the fixed insertion cylinder 320, the tensioning block 340 is hinged to the fixed insertion cylinder 320, and the tensioning block 340 can contract inward to be inserted into the wall hole along with the fixed insertion cylinder 320; the threaded rod 330 is threadedly connected inside the fixed insertion cylinder 320, and in order to facilitate screwing, a multi-prismatic section 333 is provided at the front end of the threaded rod 330. Specifically, the center of the fixed insertion cylinder 320 is hollow, and a threaded hole section is provided in the center of the fixed insertion cylinder 320 for the threaded connection of the threaded rod 330. The threaded rod 330 can push the tensioning block 340 to expand outward to be in close contact with the inner wall of the wall hole. That is, the tensioning block 340 can contract inward until it does not protrude from the peripheral wall of the fixed insertion cylinder 320 to facilitate the insertion of the fixed insertion cylinder 320 into the wall hole. After the fixed insertion cylinder 320 is inserted into the wall hole, the threaded rod 330 is tightened, so that the threaded rod 330 pushes the tensioning block 340 to expand outward to be in close contact with the inner wall of the wall hole, realizing the tight connection between the fixed insertion cylinder 320 and the wall hole, and making the control box 100 stably fixed on the wall. It can be understood that in order to achieve the stability of installation, multiple groups of connection and fixing assemblies 300, connecting protrusions 130 and mounting holes 210 are provided.

[0049] It can be understood that, such as Figure 7As shown, a plurality of tensioning blocks 340 are arranged in a surrounding manner to achieve tensioning and fixing through multi-position expansion, improving the stability of installation. The tensioning block 340 specifically includes a pushing arm 341 and a tensioning arm 342. The pushing arm 341 and the tensioning arm 342 are connected at a certain angle. In this embodiment, the pushing arm 341 and the tensioning arm 342 are perpendicularly arranged. A first hinge hole is provided at the connection between the pushing arm 341 and the tensioning arm 342. An installation port 322 is provided at the rear end of the fixed insertion cylinder 320. A second hinge hole is provided on the side wall of the installation port 322. The first hinge hole and the second hinge hole are aligned and installed with a hinge shaft to achieve hinge connection. The pushing arm 341 is used to contact the threaded rod 330, and the tensioning arm 342 is used to contact the inner wall of the wall hole. And in order to prevent the pushing arm 341 from contracting too much and not being able to be pushed by the threaded rod 330, a limiting inclined surface 323 is provided inside the installation port 322. When the pushing arm 341 contacts the limiting inclined surface 323, the tensioning arm 342 contracts inwards to not protrude from the outer peripheral wall of the fixed insertion cylinder 320, while the pushing arm 341 is on the advancing path of the threaded rod 330 and can thus be pushed by the threaded rod 330.

[0050] Referring to Figure 5 and Figure 8In a further embodiment of the present invention, the connector 310 includes a connecting column 311, a shrinking column 312 and an expanding column 313 arranged in sequence in the front direction, the connecting column 311, the shrinking column 312 and the expanding column 313 are arranged coaxially, and the diameter of the shrinking column 312 is smaller than that of the connecting column 311 and the expanding column 313; the connecting protrusion 130 is provided with an embedding groove 131, and an opening is provided at the bottom of the embedding groove 131 for the expanding column 313 to be embedded; an avoidance notch 132 is provided at the rear side of the embedding groove 131, and the avoidance notch 132 is provided. The bottom of the opening 132 is opened and the width of the avoidance gap 132 is adapted to the diameter of the shrinkage column 312; when the connecting head 310 and the connecting protrusion 130 are matched, the shrinkage column 312 is embedded in the avoidance gap 132, and the expansion column 313 is embedded in the embedding groove 131, thereby realizing the front and rear direction limitation and left and right direction limitation of the connecting protrusion 130, and then cooperating with the action of the locking piece 400, the vertical direction limitation is realized, thereby realizing the fixed installation of the connecting protrusion 130 and the control box 100. The locking member 400 is a limiting cylinder, which is slidably sleeved on the connection and fixing assembly 300. Specifically, a center hole is provided in the center of the limiting cylinder, and a first cylindrical section 331 is provided at the front end of the threaded rod 330. The limiting cylinder is slidably sleeved on the first cylindrical section 331, so as to realize movable limiting. It can be understood that a sleeve hole adapted to the first cylindrical section 331 is provided in the limiting cylinder; a spring 420 is provided between the limiting cylinder and the mounting plate 200, and the spring 420 can be a compression spring. The spring 420 is used to push the limiting cylinder to wrap the connector 310 and the connecting protrusion 130 so that the connector 310 and the connecting protrusion 130 keep matching; that is, the spring 420 can push the limiting cylinder to move from the unlocking state to the locking state. When the limiting cylinder reaches the locking state, the limiting cylinder wraps the connector 310 and the connecting protrusion 130 so that the connector 310 and the connecting protrusion 130 keep matching. The limiting cylinder wraps the connector 310 and the connecting protrusion 130 so that the two cannot be separated and remain matched, thereby achieving stable limiting fixation of the connecting protrusion 130 and the control box 100. Figure 8 and Figure 9 When in the locked state, the spring 420 will continue to exert force on the limit cylinder, so that the limit cylinder will not leave the locked state when not subjected to a large external force, thereby maintaining the locked state and achieving the limit fixation of the control box 100. Figure 10 The limit cylinder in the unlocked state is staggered with the connecting protrusion 130 in the front-to-back direction, so that the connecting protrusion 130 can move upward to disengage from the connection head 310, release the limit, and realize the disassembly of the control box 100.

[0051] Reference Figures 8 to 10 In a further embodiment of the present invention, the inner ring of the front end of the limiting cylinder is provided with a positioning protrusion 410, and the positioning protrusion 410 can pass through the avoidance notch 132 and enter the embedding groove 131 or stagger with the avoidance notch 132 and abut against the front end surface of the connecting protrusion 130 under the action of the spring 420. Figure 9As shown, in the locked state, the locking protrusion 410 is in the embedding groove 131. Figure 10 As shown, the locking protrusion 410 in the unlocked state can be offset from the avoidance notch 132 and abut against the front end surface of the connecting protrusion 130 under the action of the spring 420, so that after letting go, the locking protrusion 410 can remain abutted against the front end surface of the connecting protrusion 130, so that the limit cylinder in the unlocked state and the connecting protrusion 130 remain staggered in the front and rear directions, without the need to manually operate the limit cylinder all the time, so that the limit cylinder can be switched to the unlocked state and then rotated manually, so that the locking protrusion 410 is offset from the avoidance notch 132 and then let go, and after operating all the limit cylinders one by one, the control box 100 is moved upward to complete the disassembly.

[0052] Reference Figure 6 and Figure 8 In a further embodiment of the present invention, a guide cylinder 220 is provided on the front side of the mounting plate 200 and is arranged around the mounting hole 210. The rear end of the spring 420 is sleeved on the guide cylinder 220. The fixed insert cylinder 320 is inserted through the guide cylinder 220. The size of the center hole of the guide cylinder 220 is consistent with the mounting hole 210. The guide cylinder 220 can increase the contact length with the fixed insert cylinder 320 and improve the positioning stability of the fixed insert cylinder 320. In addition, the guide cylinder 220 can also play a positioning role on the rear end of the spring 420, so that the installation position of the spring 420 is stable. A stopper 321 with a profile larger than the center hole of the guide cylinder 220 is provided at the front end of the fixed insert cylinder 320, so as to prevent the mounting plate 200 from moving forward and disengaging from the fixed insert cylinder 320.

[0053] The connector 310 is connected to the front end of the threaded rod 330. Since the screw-in depth of each threaded rod 330 is different, the position of the connector 310 on the threaded rod 330 is not flush, thereby affecting the simultaneous connection and cooperation of multiple connection protrusions 130 with the connector 310. To this end, in a further embodiment of the present invention, a threaded hole 332 is provided at the front end of the threaded rod 330, and a connecting column 311 is provided with a stud 314 adapted to the threaded hole 332, and the stud 314 is threadedly connected to the threaded hole 332, so that the connector 310 can be adjusted by the threaded connection of the stud 314 and the threaded hole 332, so that multiple connectors 310 can be adjusted to an aligned position to facilitate the simultaneous connection and cooperation of multiple connection protrusions 130. Of course, in order to facilitate screwing, a section of multi-prism can be set on the connector 310. In addition, in order to increase the range of sliding guidance of the limit cylinder, the diameter of the connecting column 311 is the same as the first cylindrical section 331, which can be provided for the limit cylinder to slide and set.

[0054] Reference Figure 5In a further embodiment of the present invention, an embedded cylinder 430 is provided at the rear end of the limiting cylinder, and the outer diameter of the embedded cylinder 430 is larger than the outer diameter of the limiting cylinder, so that the outer periphery of the embedded cylinder 430 protrudes from the outer periphery of the limiting cylinder, so that during operation, it is convenient to operate the embedded cylinder 430 to drive the limiting cylinder to move backward. The front end of the spring 420 extends into the embedded cylinder 430 to position and limit the front end of the spring 420 to prevent the front end of the spring 420 from deviating. A block 431 extending radially inward is provided at the rear end of the embedded cylinder 430, and the block 431 is embedded in the spring 420, so that after the control box is disassembled, the block 431 can hook the spring 420, and the limiting cylinder will not rebound and fall due to the rebound force of the spring 420, and the embedding of the block 431 in the spring 420 will not prevent the limiting cylinder from rotating a certain angle so that the positioning protrusion 410 and the avoidance notch 132 are staggered. There are multiple blocks 431 arranged around.

[0055] Reference Figure 1 In some embodiments of the present invention, the mounting plate 200 is provided with a support plate 230, and the support plate 230 is used to contact the bottom of the control box 100, so that most of the gravity of the control box 100 is supported by the support plate 230, and the gravity load is not concentrated on the connection protrusion 130, which makes the connection at the connection protrusion 130 easily damaged, so that the connection protrusion 130 is mainly responsible for limiting. The support plate 230 and the bottom of the mounting plate 200 are provided with reinforcing ribs 231, so as to improve the structural strength of the support plate 230.

[0056] The present invention also provides a water-sealed cavern, comprising a plurality of water-sealed cavern water curtain hole automatic control devices, so as to realize one-to-one corresponding measurement and control of the plurality of water curtain holes.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic control device for water curtain holes in a water-sealed underground storage, characterized in that include: A control box (100) is provided with an installation cavity (110), wherein a measurement and control pipeline (120) is provided in the installation cavity (110); one end of the measurement and control pipeline (120) extends out of the control box (100) for communicating with a water supply pipe (101), and the other end extends out of the control box (100) and is connected to a water distribution pipe (160); a regulating valve (121), a flow meter (122) and a water pressure sensor (123) are installed on the measurement and control pipeline (120); and a connection protrusion (130) is provided at the rear of the control box (100); A mounting plate (200) located at the rear side of the control box (100) and provided with a mounting hole (210); A connecting and fixing component (300) is inserted into the mounting hole (210), one end of which is away from the control box (100) and is used to be embedded in and fixed to the wall hole, and the other end of which is provided with a connecting head (310), wherein the connecting head (310) cooperates with the connecting protrusion (130) to achieve position limiting of the control box (100); A connecting branch pipe (500), one end of which is connected to an end of the water distribution pipe (160) away from the measurement and control pipeline (120), and the other end of which is connected to the water curtain hole (102); a first control valve (510) is installed on the connecting branch pipe (500); A drainage branch pipe (600), one end of which is in communication with an end of the water distribution pipe (160) away from the measurement and control pipeline (120), and a second control valve (610) is installed on the drainage branch pipe (600); The device also comprises a locking member (400), the locking member (400) being installed between the mounting plate (200) and the control box (100) and being used to keep the connection head (310) and the connection protrusion (130) in cooperation; the connection head (310) comprises a connection column (311), a contraction column (312) and an expansion column (313) arranged in sequence facing forward, the contraction column (312) having a smaller diameter than the connection column (311) and the expansion column (313); the connection protrusion (130) is provided with an embedding groove (131), the bottom of the embedding groove (131) being provided with an opening for the expansion column (313) to be embedded; a rear side of the embedding groove (131) is provided with an avoidance notch (132), the avoidance notch ( The bottom of the connecting head (310) and the connecting protrusion (130) are provided with an opening, and the width of the avoidance gap (132) is adapted to the diameter of the shrinkage column (312); when the connecting head (310) and the connecting protrusion (130) are matched, the shrinkage column (312) is embedded in the avoidance gap (132), and the expansion column (313) is embedded in the embedding groove (131); the locking member (400) is a limiting cylinder, and the limiting cylinder is slidably sleeved on the connecting and fixing component (300); a spring (420) is provided between the limiting cylinder and the mounting plate (200), and the spring (420) is used to push the limiting cylinder to wrap the connecting head (310) and the connecting protrusion (130) so that the connecting head (310) and the connecting protrusion (130) remain matched.

2. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1, characterized in that, The locking member (400) has a locking state and an unlocking state; the locking member (400) is movably installed between the mounting plate (200) and the control box (100) to achieve switching between the locking state and the unlocking state.

3. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1 or 2, characterized in that, The connection fixing assembly (300) comprises a fixing insert (320) and a threaded rod (330); a tension block (340) is connected to the rear end peripheral wall of the fixing insert (320); the tension block (340) is hinged to the fixing insert (320); the tension block (340) can be retracted inwardly so as to be inserted into the wall hole along with the fixing insert (320); the threaded rod (330) is threadedly connected to the fixing insert (320); the threaded rod (330) can push the tension block (340) to expand outwardly so as to be in close contact with the inner wall of the wall hole.

4. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1, wherein The inner ring at the front end of the limiting cylinder is provided with a locking protrusion (410), and the locking protrusion (410) can pass through the avoidance notch (132) and enter the embedding groove (131) or be offset from the avoidance notch (132) and abut against the front end surface of the connecting protrusion (130) under the action of the spring (420).

5. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1, characterized in that, A guide cylinder (220) is provided on the front side of the mounting plate (200) and is arranged around the mounting hole (210). The rear end of the spring (420) is sleeved on the guide cylinder (220).

6. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1, characterized in that, An embedding cylinder (430) is provided at the rear end of the limiting cylinder, and the outer diameter of the embedding cylinder (430) is larger than the outer diameter of the limiting cylinder; the front end of the spring (420) extends into the embedding cylinder (430); and a clamping block (431) extending radially inward is provided at the rear end of the embedding cylinder (430).

7. The automatic control device for the water curtain holes of the water-sealed underground storage according to claim 1, wherein, The mounting plate (200) is provided with a support plate (230), and the support plate (230) is used to contact the bottom of the control box (100); the support plate (230) and the bottom of the mounting plate (200) are provided with reinforcing ribs (231).

8. A water-sealed underground storage, characterized in that, It comprises a plurality of automatic control devices for water curtain holes of a water-sealed cavern as described in any one of claims 1 to 7.

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