Sea water tank sealing plug plugging device

Abstract

The utility model relates to the technical field of related equipment of a gasifier of a liquefied natural gas receiving station, in particular to a plugging device for a sealing plug of a seawater tank. The device comprises a supporting plate and a sliding rod which are vertically arranged, a fixing block is arranged on the outer side of the supporting plate, a sliding groove is vertically formed in the fixing block, the sliding rod can move up and down along the sliding groove, the bottom of the sliding rod is fixedly connected with the top of a sealing plug, and the top of the sliding rod is connected with an operating device through a transmission assembly. The control device is located on the inner side of the supporting plate. The transmission assembly is arranged above the sealing plug and used in cooperation with the sliding rod, power can be provided for the transmission assembly through the operating device, then the sliding rod is made to reciprocate up and down, and convenient plugging and unplugging of the sealing plug are achieved. According to the utility model, a worker does not need to climb over a seawater tank for manual plugging, the operation is safer and more convenient, and the operation efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment related to vaporizers in LNG receiving stations, and particularly relates to a plugging and unplugging device for a seawater tank sealing plug. Background Art

[0002] An open rack vaporizer (abbreviated as "ORV"), also known as a seawater open rack vaporizer, is one of the key equipment in an LNG (liquefied natural gas) receiving station. It uses seawater as a heat source and vaporizes LNG through the circulating temperature difference of seawater, thereby saving energy consumption and reducing operating costs. In an open rack vaporizer, a seawater tank is an important component for storing and circulating seawater. A drain port is provided at the bottom of the seawater tank, and this drain port is blocked by a plug during the operation of the ORV. When the ORV stops, the plug is manually pulled out to drain the seawater in the seawater tank and prevent the growth of microorganisms in the seawater tank. Currently, the seawater tank plug of the open rack vaporizer consists of a sealing plug and an operating rod. When pulling out or inserting the seawater tank plug, the operator needs to climb over from the side of the open rack vaporizer to directly above the seawater tank (with a height difference of about 1.5 meters), bend down to pull out or insert the seawater tank plug. In this process, there is not only a risk of the staff falling from a height, but also the operation is not easy, especially the operation risk and difficulty are more prominent in rainy days. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a plugging and unplugging device for a seawater tank sealing plug, which overcomes the above deficiencies, realizes the convenient plugging and unplugging of the seawater tank sealing plug of the open rack vaporizer, and has high use safety.

[0004] The utility model provides a plugging and unplugging device for a seawater tank sealing plug, which includes a vertically arranged support plate and a sliding rod. A fixed block is arranged outside the support plate, a vertical chute is opened in the fixed block, the sliding rod can move up and down along the chute, the bottom of the sliding rod is fixedly connected to the top of the sealing plug, and the top of the sliding rod is connected to a control device through a transmission component, and the control device is located inside the support plate.

[0005] Preferably, the control device is a control handle, one end of the control handle is fixedly connected to the transmission component, and the control handle is rotatably connected to the support plate.

[0006] Preferably, a rotating hole is opened on the support plate, the control handle passes through the rotating hole and is fixedly connected to the transmission component, and a bearing is arranged between the control handle and the rotating hole.

[0007] Preferably, the transmission component includes a first transmission rod fixedly connected to one end of the control handle, the other end of the first transmission rod is rotatably connected to one end of a second transmission rod, and the other end of the second transmission rod is rotatably connected to the top of the sliding rod.

[0008] Preferably, a first rotating shaft is provided between the first transmission rod and the second transmission rod, and a second rotating shaft is provided between the second transmission rod and the sliding rod.

[0009] Preferably, the sum of the lengths of the first transmission rod, the second transmission rod, and the sliding rod is greater than or equal to the distance between the operating handle and the sealing plug.

[0010] Preferably, an anti-corrosion layer is provided on the outer layers of the first transmission rod, the second transmission rod, the sliding rod, and the sealing plug.

[0011] Preferably, an anti-slip sleeve is sleeved on one end of the operating handle away from the support plate.

[0012] Preferably, the operating handle is a crank handle.

[0013] Preferably, an adapter plate is connected to the side wall of the support plate. The adapter plate is perpendicular to the support plate and is fixedly connected to the top guardrail of the open-frame vaporizer.

[0014] Advantageous Effects:

[0015] In the present utility model, a transmission assembly is arranged above the sealing plug and cooperates with the sliding rod. The operating device can provide power for the transmission assembly, so that the sliding rod reciprocates up and down, realizing the convenient plugging and unplugging of the sealing plug. The present utility model does not require workers to climb over the seawater tank for manual plugging and unplugging, the operation is safer and more convenient, and the operation efficiency is higher. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Description of the Reference Numerals:

[0019] 1 - Guardrail, 2 - Support Plate, 3 - Adapter Plate, 4 - Operating Handle, 5 - First Transmission Rod, 6 - First Rotating Shaft, 7 - Second Transmission Rod, 8 - Second Rotating Shaft, 9 - Fixed Block, 10 - Sliding Rod, 11 - Sealing Plug, 12 - Chute. Specific Embodiments

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying 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 one or more of the described features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Embodiment 1

[0024] As Figure 1 shown, a plugging and unplugging device for a seawater tank sealing plug includes a vertically arranged support plate 2. The support plate 2 is located above the sealing plug 11. A connecting plate 3 is connected to the side wall of the support plate 2. The connecting plate 3 is perpendicular to the support plate 2 and is fixedly connected to the top guardrail 1 of the open-type vaporizer. Welding can be used between the connecting plate 3 and the guardrail 1. Connecting the guardrail 1 through the connecting plate 3 can improve the stability of the support plate 2, and the support plate 2 can play a protective role. The staff only needs to operate inside the support plate 2.

[0025] There is a fixed block 9 provided at the lower part outside the support plate 2. A chute 12 is vertically opened in the fixed block 9. A slide rod 10 can move up and down along the chute 12. The bottom of the slide rod 10 is fixedly connected to the top of the sealing plug 11. The top of the slide rod 10 is connected to a control device through a transmission component. The control device is located inside the support plate 2. The sealing plug 11 is of a conical structure, which is convenient for plugging and unplugging. The control device is a control handle 4. One end of the control handle 4 is fixedly connected to the transmission component. A rotating hole is opened on the support plate 2. The control handle 4 passes through the rotating hole and is fixedly connected to the transmission component. There is a bearing between the control handle 4 and the rotating hole. The control handle 4 is rotatably connected to the support plate 2 through the bearing. The control handle 4 can adopt a crank handle. By rotating the control handle 4, power can be provided for the transmission component. A non-slip sleeve is sleeved on the end of the control handle 4 away from the support plate 2, making it easier for the staff to operate.

[0026] The transmission component includes a first transmission rod 5. One end of the control handle 4 passes through the rotating hole and is fixedly connected to one end of the first transmission rod 5. The other end of the first transmission rod 5 is rotatably connected to one end of a second transmission rod 7. The other end of the second transmission rod 7 is rotatably connected to the top of the slide rod 10. A first rotating shaft 6 is provided between the first transmission rod 5 and the second transmission rod 7. A second rotating shaft 8 is provided between the second transmission rod 7 and the slide rod 10. By setting the first rotating shaft 6 and the second rotating shaft 8, the rotation between the first transmission rod 5 and the second transmission rod 7, and between the second transmission rod 7 and the slide rod 10 is realized. Limiting rings are provided at both ends of the first rotating shaft 6 and the second rotating shaft 8 to prevent the first rotating shaft 6 and the second rotating shaft 8 from coming out. The staff can drive the first transmission rod 5 to rotate around one end of the control handle 4 by rotating the control handle 4, thereby changing the angle between the first transmission rod 5 and the second transmission rod 7, and driving the slide rod 10 to move up and down reciprocally.

[0027] The sum of the lengths of the first transmission rod 5, the second transmission rod 7 and the slide rod 10 is greater than or equal to the distance between the control handle 4 and the sealing plug 11, ensuring that the slide rod 10 can insert the sealing plug 11 into the drain opening at the bottom of the seawater tank.

[0028] When the sum of the lengths of the first transmission rod 5, the second transmission rod 7 and the slide rod 10 is greater than the distance between the control handle 4 and the sealing plug 11, the staff can rotate the control handle 4 back and forth within a certain angle to realize the plugging and unplugging of the sealing plug 11.

[0029] Preferably, the sum of the lengths of the first transmission rod 5, the second transmission rod 7 and the slide rod 10 is equal to the distance between the control handle 4 and the sealing plug 11. When the sealing plug 11 is pulled out, the angle between the first transmission rod 5 and the second transmission rod 7 is less than 180°; when the sealing plug 11 is inserted into the drain opening, the first transmission rod 5, the second transmission rod 7 and the slide rod 10 are on a straight line. When the staff plugs and unplugs the sealing plug 11, the control handle 4 can be continuously rotated, or the control handle 4 can be rotated back and forth within a certain angle.

[0030] An anticorrosive layer is provided on the outer layers of the first transmission rod 5, the second transmission rod 7, the sliding rod 10, and the sealing plug 11, effectively improving the service life of the above components.

[0031] Working process:

[0032] When it is necessary to pull out the sealing plug 11, rotate the operating handle 4 to drive the first transmission rod 5 to rotate, and then pull the second transmission rod 7 to make the sliding rod 10 rise along the sliding groove 12 to pull out the sealing plug 11.

[0033] When it is necessary to insert the sealing plug 11, rotate the operating handle 4 in the reverse direction to drive the first transmission rod 5 to rotate, and then press the second transmission rod 7 to make the sliding rod 10 descend along the sliding groove 12 to insert the sealing plug 11 and close the drainage at the bottom of the seawater tank.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seawater tank sealing plug insertion and extraction device, characterized in that: It includes a vertically arranged support plate and a slide rod, a fixed block is provided on the outer side of the support plate, a slide groove is vertically opened in the fixed block, the slide rod can move up and down along the slide groove, the bottom of the slide rod is fixedly connected to the top of the sealing plug, the top of the slide rod is connected to the operating device through a transmission component, and the operating device is located on the inner side of the support plate.

2. The seawater tank sealing plug insertion and extraction device according to claim 1, characterized in that: The operating device is an operating handle, one end of which is fixedly connected to the transmission assembly, and the operating handle is rotatably connected to the support plate.

3. The seawater tank sealing plug insertion and extraction device according to claim 2, characterized in that: The support plate is provided with a rotating hole, the operating handle passes through the rotating hole and is fixedly connected to the transmission assembly, and a bearing is provided between the operating handle and the rotating hole.

4. The seawater tank sealing plug insertion and extraction device according to claim 2, characterized in that: The transmission assembly includes a first transmission rod having one end fixedly connected to the operating handle, the other end of the first transmission rod being rotatably connected to one end of a second transmission rod, and the other end of the second transmission rod being rotatably connected to the top of the slide rod.

5. The seawater tank sealing plug insertion and extraction device according to claim 4, characterized in that: A first rotating shaft is arranged between the first transmission rod and the second transmission rod, and a second rotating shaft is arranged between the second transmission rod and the sliding rod.

6. The seawater tank sealing plug insertion and extraction device according to claim 4, characterized in that: The sum of the lengths of the first transmission rod, the second transmission rod and the sliding rod is greater than or equal to the distance between the operating handle and the sealing plug.

7. The seawater tank sealing plug insertion and extraction device according to claim 4, characterized in that: The outer layers of the first transmission rod, the second transmission rod, the sliding rod and the sealing plug are all provided with an anti-corrosion layer.

8. The seawater tank sealing plug insertion and extraction device according to claim 2, characterized in that: An anti-slip sleeve is sleeved on one end of the operating handle away from the support plate.

9. The seawater tank sealing plug insertion and extraction device according to claim 2, characterized in that: The operating handle is a crank handle.

10. The seawater tank sealing plug insertion and extraction device according to claim 1, characterized in that: The side wall of the support plate is connected to the connecting plate, the connecting plate is perpendicular to the support plate, and the connecting plate is fixedly connected to the top guardrail of the open-frame gasifier.

Images