Thermal expansion protection device for metal hose of oil tank

Abstract

The utility model discloses a thermal expansion protection device for a metal hose of an oil tank, which relates to the technical field of oil tank hoses and comprises an oil tank body and a metal hose body, and the oil tank body is provided with a protection device convenient for pressure protection of the metal hose body. The protection device comprises an operation ball valve and a metal shell, an oil tank line is fixedly installed at the side end of the oil tank body, the metal hose body is fixedly installed on the oil tank line, the operation ball valve is fixedly installed on the oil tank line, a tank root valve is arranged on the oil tank line, and an operation valve is further arranged on the oil tank line. According to the utility model, the pressure gauge is arranged, the pressure gauge can play a role in alarming, and the requirement of protecting the metal hose body can be met by reading and judging digits on the pressure gauge and changing the volume of the metal shell, so that the effect of protecting the metal hose body is more matched.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank hoses, in particular to a thermal expansion protection device for a metal hose of an oil tank. Background Art

[0002] At present, the oil tank process pipeline of the oil depot is connected to the oil tank by a metal hose. The purpose is to ensure the elimination of stress between the oil pipe and the oil tank, to compensate for displacement, and to protect the pipeline. Valves are installed at both ends of the metal hose. Generally, the one close to the oil tank is called the tank root valve, and the one close to the process pipeline outlet is called the operating valve. At present, in actual operation, the two valves are basically closed at the same time. The purpose is to prevent a single valve from being sealed tightly and causing oil leakage. Closing at the same time can improve safety.

[0003] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems: when the existing metal hose body is in use, when the valves at both ends are closed at the same time, the volume of the metal hose and the enclosed space increases when the temperature rises, which causes the metal hose body to expand and pressurize. The expansion and pressure also acts on the tank root valve and the operating valve, and also has a certain impact on the opening and closing of the valve. Over time, the metal hose is deformed, extended, and redundantly lengthened, forming a visually visible bend. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a thermal expansion protection device for a metal hose of an oil tank, which solves the technical problem that when the temperature of the existing metal hose body rises during use, the volume expands, which causes expansion and pressure on the metal hose body, and the expansion and pressure also acts on the tank root valve and the operating valve, and has a certain influence on the opening and closing of the valve. In the long run, the metal hose is deformed, extended, has redundant length, and forms a visually visible bend.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A thermal expansion protection device for a metal hose of an oil tank comprises an oil tank body and a metal hose body. The oil tank body is provided with a protection device for facilitating pressure protection of the metal hose body. The protection device comprises an operating ball valve and a metal shell. An oil tank line is fixedly installed on the side end of the oil tank body. The metal hose body is fixedly installed on the oil tank line. The operating ball valve is fixedly installed on the oil tank line. A tank root valve is provided on the oil tank line. An operating valve is also provided on the oil tank line. A pipeline interface is fixedly installed on the lower end of the metal shell. The operating ball valve is fixedly installed on the lower end of the pipeline interface.

[0009] Preferably, a pressure gauge is fixedly mounted on the upper end of the metal shell.

[0010] Preferably, a flow guide tube is fixedly mounted on the inner side wall of the metal shell.

[0011] (III) Beneficial effects

[0012] 1. This device is equipped with a metal shell. When the volume of the metal hose expands due to temperature increase and pressure is generated, the pressure is introduced into the metal shell, compressing the airbag and alleviating the high pressure when it is filled with liquid. When the temperature drops, the volume of the airbag in the metal shell increases, compensating the volume of the liquid again, thus protecting the metal hose body, the operating valve and the tank root valve.

[0013] 2. This device is equipped with a pressure gauge, which can serve as an alarm. The numbers on the pressure gauge can be read and judged, and the volume of the metal shell can be replaced to meet the needs of protecting the metal hose body, making the effect of protecting the metal hose body more matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the pipeline structure of this utility model;

[0016] Figure 2 This is a structural diagram of the metal shell of the utility model;

[0017] Figure 3 This is a structural diagram of the flow guide pipe of the utility model;

[0018] Figure 4 This is a structural diagram of the pipeline interface of the utility model.

[0019] Legend: 1. Oil tank body; 11. Oil tank line; 12. Tank root valve; 13. Operating valve; 2. Metal hose body; 3. Operating ball valve; 4. Metal shell; 41. Pipeline interface; 42. Pressure gauge; 43. Flow guide pipe. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides a thermal expansion protection device for the metal hose of the oil tank, which effectively solves the problem that the existing metal hose body 2 expands in volume when the temperature rises during use, causing expansion and pressure on the metal hose body 2. The expansion and pressure also acts on the tank root valve 12 and the operating valve 13, which also has a certain impact on the opening and closing of the valve. In the long run, the metal hose is deformed, extended, and redundant in length is generated, and a visually visible bend is formed. The device is provided with a metal shell 4. When the volume of the metal hose body 2 expands due to the increase in temperature and pressure is generated, the pressure is introduced into the metal shell 4, compressing the airbag and relieving the high pressure when it is filled with liquid. When the temperature drops, the volume of the airbag in the metal shell 4 increases, and the volume of the liquid is compensated again, thereby producing a protective effect on the metal hose body 2, the operating valve 13, and the tank root valve 12.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As described above, the technical solution in the embodiment of the present application is to effectively solve the problem that when the temperature of the existing metal hose body 2 rises during use, its volume expands, which causes expansion and pressure on the metal hose body 2. The expansion and pressure also acts on the tank root valve 12 and the operating valve 13, and also has a certain impact on the opening and closing of the valve. In the long run, it causes the metal hose to deform, extend, generate redundant length, and form visually visible bends. The overall idea is as follows: A thermal expansion protection device for a metal hose of an oil tank, including an oil tank body 1 and a metal hose body 2. The oil tank body 1 is provided with a protection device for facilitating pressure protection of the metal hose body 2. The protection device includes an operating ball valve 3 and a metal shell 4. The side end of the oil tank body 1 is fixedly installed with an oil tank line 11. The metal hose body 2 is fixedly installed on the oil tank line 11. When the tank root valve 12 and the operating valve 13 are opened at the same time, a closed space is formed in the metal hose body 2. When the temperature rises, the volume expands, which causes expansion and pressure on the metal hose body 2.

[0023] The operating ball valve 3 is fixedly installed on the oil tank line 11. The oil tank line 11 is provided with a tank root valve 12. The oil tank line 11 is also provided with an operating valve 13. At present, the oil depot pipeline is connected to the oil tank body 1 by a metal hose body 2. The purpose is to ensure that the stress between the oil tank line 11 and the oil tank body 1 is eliminated, displacement compensation is performed, and the oil tank line 11 is protected. The tank root valve 12 and the operating valve 13 are installed at both ends of the metal hose body 2. In order to prevent a single tank root valve 12 or operating valve 13 from being poorly sealed and causing oil leakage, the tank root valve 12 and the operating valve 13 are generally in a closed state at the same time. Closing at the same time can improve safety;

[0024] The lower end of the metal shell 4 is fixedly installed with a pipeline interface 41, the operating ball valve 3 is fixedly installed at the lower end of the pipeline interface 41, and the upper end of the metal shell 4 is fixedly installed with a pressure gauge 42. The device vertically installs a metal shell 4 containing an air bag on the oil tank line 11. The air bag has pressure and fills the inner cavity of the metal shell 4. In order to ensure that the pressure can be transmitted at both ends, a guide pipe 43 is provided to guide and connect the two ends. The volume of the metal shell 4 is determined according to the sealed oil capacity of the oil tank line 11. When the volume of the metal hose body 2 expands due to the increase in temperature and generates pressure, it is introduced into the metal shell 4, compressing the air bag and relieving the high pressure when it is filled with liquid. When the temperature drops, the volume of the air bag in the metal shell 4 becomes larger, and the volume of the liquid is compensated again, thereby generating a protective effect on the metal hose body 2, the operating valve 13, and the tank root valve 12;

[0025] A guide tube 43 is fixedly installed on the inner wall of the metal shell 4. The guide tube 43 is inside the metal shell 4 to ensure that pressure can be transmitted at both ends. A pressure gauge 42 is connected at the back. The pressure gauge 42 can display the pressure in the oil tank line 11. By replacing the metal shell 4, different pipe diameters can be used. The pressure gauge 42 can generate a remote alarm after the remote alarm device is connected. The ball valve 3 is operated by remote control to achieve pressure release.

[0026] In view of the problems existing in the prior art, the utility model provides a thermal expansion protection device for a metal hose of an oil tank. The device is provided with a metal shell 4. When the volume of the metal hose body 2 expands due to the increase in temperature and pressure is generated, the pressure is introduced into the metal shell 4, compressing the airbag and alleviating the high pressure when it is filled with liquid. When the temperature drops, the volume of the airbag in the metal shell 4 becomes larger, compensating the volume of the liquid again, thereby producing a protective effect on the metal hose body 2, the operating valve 13, and the tank root valve 12.

[0027] Working principle:

[0028] At present, the oil depot pipeline is connected to the oil tank body 1 by a metal hose body 2. The purpose is to ensure that the stress between the oil tank line 11 and the oil tank body 1 is eliminated, displacement compensation is performed, and the oil tank line 11 is protected. Both ends of the metal hose body 2 are installed with a tank root valve 12 and an operating valve 13. In order to prevent a single tank root valve 12 or an operating valve 13 from being poorly sealed and causing oil cross-linking, the tank root valve 12 and the operating valve 13 are generally in a closed state at the same time. Closing at the same time can improve safety. When the tank root valve 12 and the operating valve 13 are closed at the same time, a closed space is formed in the metal hose body 2. When the temperature rises, the volume expands, which causes expansion and pressure on the metal hose body 2. The device vertically installs a metal shell 4 containing an air bag on the oil tank line 11. The air bag has pressure and fills the inner cavity of the metal shell 4. In order to ensure that the two ends can conduct pressure, a guide pipe 43 is provided inside to guide and connect the two ends. The volume of the metal shell 4 is determined according to the sealed oil capacity of the oil tank line 11. When the volume of the metal hose body 2 expands due to the increase in temperature and generates pressure, it is introduced into the metal shell 4, compressing the airbag and alleviating the high pressure when it is filled with liquid. When the temperature drops, the volume of the airbag in the metal shell 4 increases, and the volume of the liquid is compensated again, thus producing a protective effect on the metal hose body 2 and the operating valve 13 and the tank root valve 12. There is a guide tube 43 inside the metal shell 4 to ensure that pressure can be transmitted at both ends, and then a pressure gauge 42 is connected to the back. The pressure gauge 42 can display the pressure in the oil tank line 11. By replacing the metal shell 4, different pipe diameters can be applied. After the pressure gauge 42 can be used for remote transmission alarm device, a remote transmission alarm can be generated. The ball valve 3 can be operated by remote control to achieve pressure release. When the temperature of the existing metal hose body 2 rises during use, its volume expands, causing expansion and pressure on the metal hose body 2. The expansion and pressure also act on the tank root valve 12 and the operating valve 13 at the same time, which also has a certain influence on the opening and closing of the valve. Over time, the metal hose will be deformed and extended, and redundant length will be generated, forming a visually visible bend. The device is provided with a metal shell 4. When the volume of the metal hose body 2 expands due to the increase in temperature and generates pressure, the pressure is introduced into the metal shell 4, compressing the airbag and alleviating the high pressure when it is filled with liquid. When the temperature drops, the volume of the airbag in the metal shell 4 increases, and the volume of the liquid is compensated again, thereby protecting the metal hose body 2 and the operating valve 13 and the tank root valve 12. The device is provided with a pressure gauge 42, and the pressure gauge 42 can serve as an alarm. The number on the pressure gauge 42 can be read and judged, and the volume of the metal shell 4 can be changed to meet the need of protecting the metal hose body 2, so that the effect of protecting the metal hose body 2 is more matched.

[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A thermal expansion protection device for a metal hose of an oil tank, comprising an oil tank body (1) and a metal hose body (2), characterized in that: The oil tank body (1) is provided with a protection device for facilitating pressure protection of the metal hose body (2); The protection device comprises an operating ball valve (3) and a metal shell (4); an oil tank line (11) is fixedly mounted on the side end of the oil tank body (1); the metal hose body (2) is fixedly mounted on the oil tank line (11); and the operating ball valve (3) is fixedly mounted on the oil tank line (11).

2. The oil tank metal hose thermal expansion protection device according to claim 1, characterized in that: The oil tank line (11) is provided with a tank root valve (12); Wherein, an operating valve (13) is also provided on the oil tank line (11).

3. The oil tank metal hose thermal expansion protection device according to claim 2, characterized in that: A pipeline interface (41) is fixedly mounted on the lower end of the metal shell (4).

4. A thermal expansion protection device for a metal hose of an oil tank as claimed in claim 3, characterized in that: The operating ball valve (3) is fixedly mounted on the lower end of the pipeline interface (41).

5. The oil tank metal hose thermal expansion protection device according to claim 4, characterized in that: A pressure gauge (42) is fixedly mounted on the upper end of the metal shell (4).

6. The oil tank metal hose thermal expansion protection device according to claim 5, characterized in that: A flow guide tube (43) is fixedly mounted on the inner side wall of the metal shell (4).

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