LNG tank safety monitoring device

Abstract

The utility model discloses an LNG (Liquefied Natural Gas) tank safety monitoring device, which relates to the technical field of natural gas storage and comprises a carrier, an LNG tank body is fixedly connected to the inner side of the carrier, a shell is arranged on one side of the carrier, and a lead screw transmission component is arranged in the shell. When the outer side of the LNG tank body deforms, the ball bearing is pushed to move, the abutting plate drives the movable guide rod to push the contact piece to move towards the contact base, due to diagonal elastic supporting of the two sets of elastic supporting pieces, when displacement exceeds a preset threshold value, the contact piece makes contact with the contact base, a signal transmission end loop is conducted, and an electric signal is sent to an external controller for early warning. Signal transmission and safety monitoring functions which are conducted only through mechanical contact are achieved, and the problem that the assembly difficulty is increased due to the fact that power supply cables need to be laid for electrical equipment monitoring is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas storage technical field, concretely is a LNG tank safety monitoring device. BACKGROUND

[0002] LNG tank as the core equipment of storing liquefied natural gas, mainly stores natural gas, realizes efficient storage, and then is convenient for long-distance transportation, plays a key role in the field such as energy reserve peak shaving, industrial and civilian fuel supply, cross-border energy trade, when using LNG tank to store natural gas, need to use safety monitoring device to carry out safety early warning to LNG tank to ensure the safe state of LNG tank use.

[0003] When monitoring LNG tank by electrical equipment, it is easy to be limited by power line, needs to lay out electrical equipment power cable, increases the assembly device difficulty problem, therefore, urgently needs to develop a kind of LNG tank safety monitoring device to solve these practical problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a LNG tank safety monitoring device to solve the above problems.

[0005] To achieve the above object, the utility model provides a LNG tank safety monitoring device, which comprises a carrier, the carrier is fixed with an LNG tank body on the inner side, a shell is arranged on one side of the carrier, and a lead screw transmission assembly is arranged inside the shell.

[0006] It further comprises a contact early warning mechanism, the contact early warning mechanism comprises a mounting sleeve seat arranged on one side of the lead screw transmission assembly, two groups of elastic supporting pieces are fixed in the mounting sleeve seat and are arranged in diagonal lines, a contact seat is fixed in the mounting sleeve seat, and the contact seat is located at the center of the diagonal lines of the two groups of elastic supporting pieces, a signal transmission end is fixed at one end of the contact seat for transmitting the current signal of the contact seat, a plurality of movable guide rods are installed in the mounting sleeve seat, a contact piece corresponding to the contact seat is fixed at one end of the movable guide rod, and a contact resisting assembly is fixed at the other end of the movable guide rod.

[0007] Preferably, the contact resisting assembly comprises a contact resisting plate arranged at one end of the movable guide rod, the contact resisting plate is located inside the mounting sleeve seat, and a rotatable ball bearing is installed on the mounting surface of the contact resisting plate.

[0008] Preferably, all the ball bearings are distributed in a rectangular array mode aligned by rows and columns in the plane of the contact resisting plate.

[0009] Preferably, the contact resisting plate is semicircular in shape.

[0010] Preferably, the coating maintenance mechanism is fixed to the fixed plate through the adjusting assembly, two sets of vibration motors are arranged on one side of the fixed plate and horizontally aligned and correspondingly arranged, a cleaning plate is fixed to the other side of the fixed plate, and the cleaning plate is a steel wire brush plate.

[0011] Preferably, the adjusting assembly comprises a plurality of connecting seats arranged at the bottom of the mounting sleeve, and a supporting rod is slidably arranged in the connecting seat.

[0012] Preferably, a locking piece is threadedly mounted on one side of the connecting seat, and the end of the locking piece extends into the connecting seat and can abut against the side of the supporting rod to fix the position of the supporting rod.

[0013] Preferably, an electromagnetic valve pipe is fixed to one side of the top of the LNG tank body.

[0014] The utility model provides a kind of LNG tank safety monitoring device.Compared with prior art, it has the following beneficial effects

[0015] 1, screw rod transmission assembly is driven to abut plate synchronous movement by mounting sleeve, in turn drive ball bearing to abut and move along the outside of LNG tank body, when the outside of LNG tank body is deformed, ball bearing is pushed to move, abut plate drives movable guide rod to push contact piece to move to contact point seat, because two sets of elastic supports are supported by diagonal line elasticity, when displacement exceeds preset threshold, contact piece is contacted with contact point seat, and signal transmission end loop is guided to send electric signal warning to external controller, realize only through mechanical contact signal transmission and safety monitoring function of conduction, avoid the problem that electrical equipment monitoring needs to lay power cable and increases assembly difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the appearance schematic view of the utility model;

[0017] Figure 2 It is the contact early warning mechanism installation position schematic view of the utility model;

[0018] Figure 3 It is the contact early warning mechanism overhead schematic view of the utility model;

[0019] Figure 4 It is the contact early warning mechanism enlarged schematic view of the utility model;

[0020] Figure 5 It is the coating maintenance mechanism local schematic view of the utility model.

[0021] In the figure: 1, carrier; 101, LNG tank body; 2, shell; 201, screw transmission assembly; 3, contact early warning mechanism; 301, mounting sleeve; 302, elastic support; 303, contact seat; 304, movable guide rod; 305, contact piece; 306, contact plate; 307, ball bearing; 308, signal transmission end; 4, coating maintenance mechanism; 401, connecting seat; 402, support rod; 403, locking piece; 404, fixed plate; 405, vibration motor; 406, cleaning plate; 5, electromagnetic valve pipe. DETAILED DESCRIPTION

[0022] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The first embodiment is as follows:

[0024] Reference Figures 1-5 A LNG tank safety monitoring device, comprising a carrier 1, an LNG tank body 101 is fixedly connected to the inner side of the carrier 1, a shell 2 is arranged on one side of the carrier 1, and a screw transmission assembly 201 is arranged in the shell 2;

[0025] The device further comprises a contact early warning mechanism 3, the contact early warning mechanism 3 comprises a mounting sleeve 301 arranged on one side of the screw transmission assembly 201, two groups of elastic supports 302 are fixedly connected to the inside of the mounting sleeve 301 and are arranged in a diagonal line, a contact seat 303 is fixedly connected to the inside of the mounting sleeve 301, and the contact seat 303 is located at the center of the diagonal line of the two groups of elastic supports 302, a signal transmission end 308 is fixedly connected to one end of the contact seat 303, for transmitting the current signal of the contact seat 303, a plurality of movable guide rods 304 are arranged through the inside of the mounting sleeve 301, a contact piece 305 corresponding to the contact seat 303 is fixedly connected to one end of the movable guide rod 304, and the other end of the movable guide rod 304 is fixedly connected to a contact plate 306;

[0026] The contact plate 306 is located on the inner side of the mounting sleeve 301, the ball bearings 307 are rotatably arranged on the mounting surface of the contact plate 306, all the ball bearings 307 are arranged in a rectangular array mode in rows and columns on the plane of the contact plate 306, and the contact plate 306 has a semicircular shape

[0027] An electromagnetic valve pipe 5 is fixedly connected to one side of the top of the LNG tank body 101, and the electromagnetic valve pipe 5 is connected with the signal transmission end 308 through a controller.

[0028] The screw rod transmission assembly 201 drives the mounting sleeve 301 to vertically displace, the displaced mounting sleeve 301 drives the abutting plate 306 to synchronously move through the movable guide rod 304, the abutting plate 306 drives the ball bearing 307 to abut and move outside the LNG tank body 101;

[0029] When the LNG tank body 101 outside is deformed, the ball bearing 307 is moved by abutting the deformation of the LNG tank body 101 outside, the moved abutting plate 306 drives the movable guide rod 304 to move, the movable guide rod 304 drives the contact piece 305 to move towards the contact seat 303, and when the displacement exceeds the preset threshold, the contact piece 305 contacts the contact seat 303, the loop of the signal transmission end 308 is conducted, an electric signal is sent to the external controller to realize early warning, and the function of signal transmission and early warning safety monitoring is realized only through mechanical contact conduction, and the problem that the electrical equipment for monitoring the LNG tank body 101 is easily limited by the power line, and the power cable of the electrical equipment needs to be laid, increasing the assembly difficulty of the device is avoided.

[0030] After the controller receives the electromagnetic signal transmitted by the signal transmission end 308, the electromagnetic valve pipe 5 is controlled to operate, the natural gas stored in the LNG tank body 101 is conveyed and discharged to the external storage equipment through the electromagnetic valve pipe 5, and the emergency function of discharging natural gas in linkage after safety early warning is realized.

[0031] The second embodiment is as follows:

[0032] Because the water-based acrylic coating on the outside of the LNG tank body 101 is easily faded and powdered under the erosion of ultraviolet rays and rainwater, the coating needs to be regularly sprayed in whole, and when the coating on the outside of the LNG tank body 101 is regularly sprayed in whole, part of the coating that has not fallen off is easy to cause uneven spraying of the coating, and further cause the coating at the overlapping position to be easy to crack and separate;

[0033] Reference Figure 1 、 2 、5, in the second embodiment of the utility model, still include coating maintenance mechanism 4, coating maintenance mechanism 4 is fixedly connected through adjusting assembly fixed plate 404, two groups of vibration motors 405 are set up in one side of fixed plate 404, and two groups of vibration motors 405 are horizontally aligned and correspondingly set up, and the other side of fixed plate 404 is fixedly connected with cleaning plate 406, and the cleaning plate 406 adopts steel wire brush plate;

[0034] The adjusting assembly comprises a plurality of connecting seats 401, the connecting seat 401 is arranged at the bottom of the mounting sleeve 301, a support rod 402 that can slide up and down is arranged in the connecting seat 401, a locking piece 403 is screw-mounted on one side of the connecting seat 401, and the end of the locking piece 403 extends into the connecting seat 401 and can abut against the side of the support rod 402 to fix the position of the support rod 402.

[0035] The operator pushes the supporting rod 402 to drive the fixed plate 404 to displace, so that the cleaning plate 406 is attached to the outside of the LNG tank body 101, then the lead screw transmission assembly 201 drives the cleaning plate 406 to vertically synchronize displacement, the vibration motor 405 operates to generate vibration force and transmit to the inside of the cleaning plate 406, so that the steel wire brush plate vibrates and moves against the coating on the outside of the LNG tank body 101, thereby separating the coating on the outside of the LNG tank body 101, facilitating subsequent spraying and maintenance of the coating on the outside of the LNG tank body 101, solving the problem that when the coating on the outside of the LNG tank body 101 is periodically sprayed as a whole, part of the coating that has not fallen off is easy to cause uneven spraying of the coating, thereby causing the coating at the overlapping part to be easy to crack and separate.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An LNG tank safety monitoring device, comprising a carrier (1), wherein an LNG tank body (101) is fixedly connected to the inner side of the carrier (1), characterized in that: The carrier (1) has a housing (2) on one side, and a screw drive assembly (201) is provided inside the housing (2). It also includes a contact warning mechanism (3), which includes a mounting sleeve (301) disposed on one side of the screw drive assembly (201), two sets of elastic support members (302) fixed inside the mounting sleeve (301) and arranged diagonally, a contact seat (303) fixed inside the mounting sleeve (301), and the contact seat (303) is located at the center of the diagonal of the two sets of elastic support members (302), one end of the contact seat (303) is fixed to a signal transmission end (308) for transmitting the current signal of the contact seat (303), and multiple sets of movable guide rods (304) are installed through the mounting sleeve (301), one end of the movable guide rod (304) is fixed to a contact piece (305) corresponding to the contact seat (303), and the other end of the movable guide rod (304) is fixed to an abutment component.

2. The LNG tank safety monitoring device according to claim 1, characterized in that: The abutment assembly includes an abutment plate (306) disposed at one end of the movable guide rod (304). The abutment plate (306) is located inside the mounting sleeve (301), and a rotatable ball bearing (307) is mounted on the mounting surface of the abutment plate (306).

3. The LNG tank safety monitoring device according to claim 2, characterized in that: All the ball bearings (307) are arranged in a rectangular array with rows and columns aligned in the plane of the contact plate (306).

4. The LNG tank safety monitoring device according to claim 3, characterized in that: The contact plate (306) has a semi-circular shape.

5. The LNG tank safety monitoring device according to claim 1, characterized in that: It also includes a coating maintenance mechanism (4), which is fixed to a fixed plate (404) via an adjustment component. Two sets of vibration motors (405) are set on one side of the fixed plate (404), and the two sets of vibration motors (405) are horizontally aligned and correspondingly set. A cleaning plate (406) is fixed to the other side of the fixed plate (404), and the cleaning plate (406) is a wire brush plate.

6. The LNG tank safety monitoring device according to claim 5, characterized in that: The adjustment assembly includes multiple sets of connecting seats (401), which are located at the bottom of the mounting sleeve (301), and a support rod (402) that can slide up and down passes through the inside of the connecting seat (401).

7. The LNG tank safety monitoring device according to claim 6, characterized in that: A locking element (403) is threadedly installed on one side of the connecting seat (401). The end of the locking element (403) extends into the interior of the connecting seat (401) and can abut against the side of the support rod (402) to fix its position.

8. The LNG tank safety monitoring device according to claim 1, characterized in that: The LNG tank body (101) is fixedly connected to a solenoid valve pipe (5) on one side of the top.

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