CN217125784U

CN217125784U - Alarm device for preventing negative pressure in tank

Info

Publication number: CN217125784U
Application number: CN202120910328.2U
Authority: CN
Inventors: 吴攀攀; 王永彬; 靳晓龙; 朱天一; 彭涛
Original assignee: Wuhu CIMC Ruijiang Automobile Co Ltd
Current assignee: Wuhu CIMC Ruijiang Automobile Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-08-05
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a prevent alarm device of jar interior negative pressure, including a jar body, the subsea valve is installed in one side of jar body bottom, just the subsea valve is linked together with the inner chamber of the jar body, and the protection valves group, the protection valves group is installed in one side at jar body top, the protection valves group includes the breather valve, the bottom of breather valve is linked together with the inner chamber of the jar body, breather valve and subsea valve are through same way gas source control, the protection valves group still includes the vacuum valve, the vacuum valve set up in one side of breather valve, and with the breather valve is linked together, the opposite side of breather valve is connected with the manometer. The utility model discloses a ventilative valve at subsea valve and top is with the same air supply control all the way to and the cooperation between subsea valve and the protection valves is used, guarantees that the valve body can normally work, thereby protects the fluid reservoir that loads the easy crystallization of normal atmospheric temperature effectively.

Description

Alarm device for preventing negative pressure in tank

Technical Field

The utility model belongs to the technical field of the tank car, specifically speaking, the utility model relates to a prevent alarm device of jar interior negative pressure.

Background

The tank body is mounted at the tail part above the tank truck, is usually made of carbon steel lining rotational molding or stainless steel tank, aluminum tank and other materials, is widely applied to loading acid, alkali, salt and other corrosive and dangerous media, and is usually provided with a vacuum valve, a vacuum breaking valve and the like to ensure the normal negative pressure in the tank.

The conventional vacuum valve or vacuum break valve operates in such a manner that when negative pressure is generated in the sealed container and reaches a set value, the vacuum valve or vacuum break valve is turned on, thereby preventing the container from being damaged.

The above-mentioned working method has the following disadvantages:

when the tank body is loaded with caprolactam or other media which are easy to crystallize at normal temperature, the vacuum valve arranged at the top of the liquid tank is easy to be blocked by crystals in the transportation process, so that the valve body cannot work, and the effect of preventing negative pressure cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent alarm device of jar interior negative pressure has solved the problem that proposes among the above-mentioned background art.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: an alarm device for preventing negative pressure in a tank comprises a tank body,

the sea bottom valve is arranged on one side of the bottom of the tank body and communicated with the inner cavity of the tank body;

the protection valve group is installed on one side of the top of the tank body and comprises a vent valve, the bottom of the vent valve is communicated with the inner cavity of the tank body, the vent valve and the subsea valve are controlled through the same air source, the protection valve group further comprises a vacuum valve, the vacuum valve is arranged on one side of the vent valve and communicated with the vent valve, and the other side of the vent valve is connected with a pressure gauge.

Preferably, the tank body comprises a front tank body and a rear tank body, the front tank body is connected with the rear tank body through an annular fixing piece, the front tank body is communicated with the rear tank body, a fixing structure is installed at the bottom of the front tank body, and a supporting structure is installed at the bottom of the rear tank body.

Preferably, including wave-proof board group, wave-proof board group includes the mounting panel, the mounting panel laminating is connected in the inner wall of the jar body, and the mounting panel is the arc, wave-proof board base plate is installed through the fastener to the internal surface of mounting panel.

Preferably, fixed knot constructs including two I-shaped steel, two I-shaped steel all sets up in the below of preceding jar of body, two install a plurality of first arc pieces between the top of I-shaped steel.

Preferably, a circular ring piece is installed on one side of the top of the I-shaped steel, the circular ring piece is located on one side of the first arc-shaped piece, and the inner walls of the first arc-shaped piece and the first circular ring piece are attached to the outer wall of the front tank body.

Preferably, the supporting structure comprises a base, the base is arranged at the bottom of the rear tank body, a second circular ring piece and a second arc-shaped piece are respectively arranged on two sides of the base, and the second circular ring piece and the second arc-shaped piece are attached to the outer wall of the rear tank body.

Preferably, the sealing heads are arranged on the separated sides of the front tank body and the rear tank body.

Preferably, the top of the front tank body is provided with a filling port.

The beneficial effect of adopting above technical scheme is:

during transportation, fluctuation and impact of liquid in the tank body are reduced through the wave-proof plate group, the running stability of the vehicle is improved, when the subsea valve is opened for unloading, the vent valve acts to push a crystallization layer on the top of the tank, the pressure gauge connected to the vent valve can monitor the pressure in the tank at the moment, when the nitrogen filling port is insufficient in air inlet, the pressure in the tank is reduced along with the unloading time, when the pressure is reduced to be below a set value of the pressure gauge, the alarm starts to give an alarm, at the moment, an operator timely closes the subsea valve, when the operator fails to timely close the subsea valve, the pressure in the tank can be continuously reduced, when the working pressure of the vacuum valve is reached, the vacuum valve starts to work so as to reach the effect of protecting the tank body, the valve body can normally work, the effect of preventing negative pressure normally works, and the liquid tank which is easy to crystallize at normal temperature is effectively protected.

Drawings

FIG. 1 is an assembly view of the present invention providing an alarm device for preventing negative pressure in a tank;

FIG. 2 is an assembly view of the can body;

FIG. 3 is an assembly view of the protection valve block;

fig. 4 is an enlarged view at a in fig. 2.

Wherein:

1. a tank body; 11. a front tank body; 12. a rear tank body; 2. a wave guard group; 21. mounting a plate; 22. a wave-proof substrate; 3. a subsea valve; 4. a protection valve group; 41. a vent valve; 42. a vacuum valve; 43. a pressure gauge; 5. a fixed structure; 51. i-shaped steel; 52. a first arcuate member; 53. a circular ring member; 6. a support structure; 61. a base; 62. a second circular ring member; 63. a second arcuate member; 7. sealing the end; 8. and a filling port.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.

As shown in figures 1 to 4, the utility model relates to an alarm device for preventing negative pressure in a tank, which can ensure that a valve body can work normally, so that the effect of preventing negative pressure works normally, and the liquid tank which is loaded with normal temperature and easy to crystallize is effectively protected.

Specifically, as shown in fig. 1 to 4, includes a can body 1,

the sea bottom valve 3 is arranged on one side of the bottom of the tank body 1, and the sea bottom valve 3 is communicated with the inner cavity of the tank body 1;

the protection valve group 4 is installed on one side of the top of the tank body 1, the protection valve group 4 comprises a vent valve 41, the bottom of the vent valve 41 is communicated with an inner cavity of the tank body 1, the vent valve 41 and the subsea valve 3 are controlled through the same air source, the protection valve group 4 further comprises a vacuum valve 42, the vacuum valve 42 is arranged on one side of the vent valve 41 and communicated with the vent valve 41, and the other side of the vent valve 41 is connected with a pressure gauge 43.

The tank body 1 comprises a front tank body 11 and a rear tank body 12, the front tank body 11 is connected with the rear tank body 12 through an annular fixing piece, the front tank body 11 is communicated with the rear tank body 12, a fixing structure 5 is installed at the bottom of the front tank body 11, and a supporting structure 6 is installed at the bottom of the rear tank body 12.

Including wave guard group 2, wave guard group 2 includes mounting panel 21, the laminating of mounting panel 21 is connected in the inner wall of jar body 1, and mounting panel 21 is the arc, wave guard base plate 22 is installed through the fastener to mounting panel 21's internal surface.

Fixed knot constructs 5 includes two I-shaped steel 51, two I-shaped steel 51 all sets up in the below of preceding jar of body 11, two install a plurality of first arc 52 between the top of I-shaped steel 51.

A circular ring piece 53 is arranged on one side of the tops of the two I-shaped steels 51, the circular ring piece 53 is positioned on one side of the first arc-shaped piece 52, and the inner walls of the first arc-shaped piece 52 and the first circular ring piece 53 are attached to the outer wall of the front tank body 11.

The supporting structure 6 comprises a base 61, the base 61 is arranged at the bottom of the rear tank 12, a second circular ring part 62 and a second arc-shaped part 63 are respectively arranged on two sides of the base 61, and the second circular ring part 62 and the second arc-shaped part 63 are attached to the outer wall of the rear tank 12.

And the sealing heads 7 are arranged on the separated sides of the front tank body 11 and the rear tank body 12.

The top of the front tank body 11 is provided with a filling opening 8.

The following specific working modes are illustrated by specific examples:

example 1:

firstly, a tank body 1 is arranged on a tank truck, the direction of a front tank body 11 is ensured to be the same as the front direction of the tank truck in the installation process, the front tank body 11 is fixed with the tank truck through a fixing structure 5 at the bottom, then materials are injected into the tank body 1 through a filling port 8 and then transported, in the transportation process, the fluctuation and impact of liquid in the tank body 1 are reduced through a wave-proof plate group 2, the running stability of the truck is improved, when a subsea valve 3 is opened for unloading, a gas-permeable valve 41 acts to push open a crystallization layer at the top of the tank, at the moment, a pressure gauge 43 connected to the gas-permeable valve 41 can monitor the pressure in the tank, when the gas inlet of a nitrogen filling port is insufficient, the pressure in the tank is reduced along with the unloading time, when the pressure is reduced below the set value of the pressure gauge 43, an alarm starts to alarm, at the moment, an operator can timely close the subsea valve 3, and when the operator cannot timely close the subsea valve 3, at this time, the pressure in the tank will continue to decrease, and when the working pressure of the vacuum valve 42 is reached, the vacuum valve 42 starts to work, so that the function of protecting the tank body 1 is achieved.

The present invention has been described in detail with reference to the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments, but is intended to cover various insubstantial modifications, including those made by the method and technical solutions of the present invention; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims

1. The utility model provides a prevent alarm device of jar interior negative pressure which characterized in that: comprises a tank body (1),

the sea bottom valve (3) is arranged on one side of the bottom of the tank body (1), and the sea bottom valve (3) is communicated with the inner cavity of the tank body (1);

the protection valve group (4), the protection valve group (4) is installed in one side at the top of the tank body (1), the protection valve group (4) includes a vent valve (41), the bottom of the vent valve (41) is communicated with the inner cavity of the tank body (1), the vent valve (41) and the seabed valve (3) are controlled through the same air source, the protection valve group (4) further comprises a vacuum valve (42), the vacuum valve (42) is arranged on one side of the vent valve (41) and communicated with the vent valve (41), and the other side of the vent valve (41) is connected with a pressure gauge (43).

2. The alarm device for preventing negative pressure in a tank of claim 1, wherein: the jar body (1) is including preceding jar body (11) and the back jar body (12), preceding jar body (11) is connected with the back jar body (12) through annular mounting, and just preceding jar body (11) is linked together with the back jar body (12), fixed knot constructs (5) are installed to the bottom of preceding jar body (11), bearing structure (6) are installed to the bottom of the back jar body (12).

3. The alarm device for preventing negative pressure in a tank of claim 1, wherein: including wave-proof board group (2), wave-proof board group (2) includes mounting panel (21), mounting panel (21) laminating is connected in the inner wall of jar body (1), and mounting panel (21) are the arc, wave-proof board base plate (22) are installed through the fastener to the internal surface of mounting panel (21).

4. The alarm device for preventing negative pressure in a tank of claim 2, wherein: fixed knot constructs (5) and includes two I-shaped steel (51), two I-shaped steel (51) all set up in the below of preceding jar body (11), two install a plurality of first arc (52) between the top of I-shaped steel (51).

5. An alarm device for preventing negative pressure in a tank as claimed in claim 4, wherein: a circular ring piece (53) is installed on one side of the tops of the two I-shaped steels (51), the circular ring piece (53) is located on one side of a first arc-shaped piece (52), and the inner walls of the first arc-shaped piece (52) and the first circular ring piece (53) are attached to the outer wall of the front tank body (11).

6. The alarm device for preventing negative pressure in a tank of claim 2, wherein: the supporting structure (6) comprises a base (61), the base (61) is arranged at the bottom of the rear tank body (12), a second circular ring piece (62) and a second arc-shaped piece (63) are respectively installed on two sides of the base (61), and the second circular ring piece (62) and the second arc-shaped piece (63) are attached to the outer wall of the rear tank body (12).

7. The alarm device for preventing negative pressure in a tank of claim 2, wherein: and end enclosures (7) are arranged on the separated sides of the front tank body (11) and the rear tank body (12).

8. The alarm device for preventing negative pressure in a tank of claim 7, wherein: the top of the front tank body (11) is provided with a filling port (8).