CN218863291U - Emergency closing device for tank car - Google Patents

Abstract

The utility model relates to an emergency closing device for tank car for when the tank car emergent correspondence when the in-process of unloading meets accident, improve the security. The emergency cut-off valve is installed below a tank body of the tank car, the emergency cut-off valve is connected with a discharge pipe, the discharge pipe is connected with a common screw type cut-off valve, and the common screw type cut-off valve is communicated with a discharge port. The utility model discloses not only provide quick effectual operation solution for the risk condition of the in-process of unloading, also can ensure operating personnel comparatively convenient accomplish in daily work and close the trip valve through labour saving and time saving's operation mode moreover, and then ensure the security of tank car fortune year in-process.

Description

Emergency closing device for tank car

[ technical field ] A

The utility model relates to an emergency closing device for tank car for when the tank car urgent reply of unloading in-process emergence accident, improve the security.

[ background ] A method for producing a semiconductor device

Generally, tank trucks are special equipment for storage and transportation, and belong to chemical liquid transport vehicles. Under normal conditions, toxic, harmful, flammable and explosive materials are transported, so that the tank car needs to be provided with obvious marks to indicate transported articles and emergency treatment modes so as to avoid accidents. Under some circumstances, the accident of tank car takes place at the vehicle in-process of traveling, thereby has taken place traffic accident and has leaded to taking place serious accident, but under most circumstances, the in-process of unloading when the vehicle is static takes place accident such as leakage more easily, but among the present prior art, the security guarantee of tank car in-process of unloading is still not enough, consequently, based on this kind of consideration, the utility model discloses relevant part to the tank car has been improved.

[ summary of the invention ]

In order to solve the problems, the utility model provides an emergency closing device for a tank car, in particular to an emergency closing device which comprises an emergency stop valve arranged below a tank body of the tank car, wherein the emergency stop valve is connected with a discharge pipe, the discharge pipe is connected with a common screw type stop valve, and the common screw type stop valve is communicated with a discharge port; the emergency cut-off valve is provided with a valve body, a valve, a spring and a ring seat; a guide valve rod is fixed at the center of the valve, one end of the guide valve rod is arranged in the valve body, and the other end of the guide valve rod protrudes out of the valve body; the guide valve rod penetrates through the spring and the ring seat, so that the valve can be subjected to the elastic force of the spring to close the valve body; the side of the valve body is provided with a sleeve, and a rotating shaft penetrates through the sleeve.

Furthermore, the valve is provided with an inclined conical ring surface, and a sealing ring is arranged on the inclined conical ring surface in a matching mode.

Further, the rotating shaft drives the guide valve rod through a cam, and the rotating shaft is connected with a rotating handle outside the valve body.

[ description of the drawings ]

Figure 1 is a schematic view of a prior art tank car discharge apparatus.

Fig. 2 is a schematic view of a tank car tripper with an emergency shutdown device of the present invention.

Fig. 3 is a schematic view of the quick action emergency valve of the present invention.

Fig. 4 is a schematic view of the closed state of the quick action emergency valve of the present invention.

Fig. 5 is a schematic diagram of the open state of the quick action emergency valve of the present invention.

Fig. 6 is an assembly diagram of the present invention.

Description of reference numerals:

1-tank body

8-emergency cut-off valve

3-discharge pipe

4-cut-off valve

5-discharge port

80-valve body

81-valve

82-sealing ring

83-guide valve rod

84-spring

85-ring seat

86-pressing plate

87-support

88-sleeve

89-rotating shaft

90-cam

91-rotating handle

[ detailed description ] embodiments

Next, the technical solution according to the present invention will be described in detail with reference to the drawings.

As shown in figure 1, which is a schematic diagram of a tank car unloading device in the prior art, a cut-off valve 2 is installed below a tank body 1 of the tank car, and the cut-off valve 2 is connected with an unloading pipe 3, then connected with a cut-off valve 4 and finally connected with a discharge port 5. Because the shut-off valve 2 and the shut-off valve 4 are opened and closed by rotating the screw 6 and the screw 7, the screw 6 and the screw 7 must be respectively rotated to open the shut-off valve 2 and the shut-off valve 4 to discharge materials through the pipeline when discharging. Although discharge conduit 3 has two trip valves 2, 4 as safeguard measure, but this kind of pivoted trip valve is consuming time hard, so in the actual work, operating personnel often can't accomplish according to the safety standard and close two trip valves simultaneously, and regular only closes one, has lead to very big potential safety hazard. Meanwhile, the operation process of the two cut-off valves which wastes time and labor can lead to the situation that the pipeline cannot be cut off quickly in a short time or even the valve cannot be approached in a short distance when an accident happens, and the accident is easily enlarged. Therefore, in view of the situation, the utility model relates to a tank car emergency shutdown device when unexpected the emergence, can cut off the valve with the shortest time, falls to the minimum with the risk.

Specifically, as shown in fig. 2-6, the emergency closing device for the tank truck is characterized in that an emergency cut-off valve 8 is arranged below a tank body 1, and the emergency cut-off valve 8 is connected with a discharge pipe 3 and then connected with a common screw type cut-off valve 4 and a discharge port 5.

As shown in fig. 3, the quick action emergency valve 8 is opened in a tapered shape above the valve body 80, and a tapered valve 81 is fitted, and the tapered surface of the valve 81 is fitted with a seal ring 82. The valve 81 has a guide stem 83 fixed at its center, one end in the valve body 80 and the other end protruding out of the valve body 80, and passes through a spring 84 and a ring seat 85, and the spring 84 and the ring seat 85 are fixed by a pressing plate 86 and a support 87. The valve 81 is biased by a spring 84 to close the valve body 80. A sleeve 88 is provided on the side of the valve body 80, and a rotating shaft 89 passes through the sleeve 88 and drives a guide stem 83 in the valve body via a cam 90, so that the valve can be opened. The rotating shaft 89 is connected to a stem 91 outside the valve body. The valve remains closed while the stem remains non-rotating, as shown in fig. 4. When the quick action emergency valve 8 needs to be opened, the rotating handle 91 is rotated to drive the rotating shaft 89, the pressing cam 90 compresses the spring 84 through the guide valve rod 83 in the valve body, and the valve 81 is pushed open, so that the valve body 80 is in an open state, as shown in fig. 5.

Meanwhile, as shown in fig. 6, the emergency cut-off valve 8 is arranged below the tank body, and the discharge pipe 3 is connected with the common cut-off valve 4 and the discharge port 5. The handle 91 of the quick action emergency valve 8 is pulled by a cable 92 to a pull block 94 of a control handle 93 outside the frame 9. When the control handle 93 is rotated, the pull block 94 pulls the cable 92, causing the rotation handle 91 to rotate, and the cam 90 drives the guide valve rod 83 in the valve body to push the valve 81 open, so as to open the valve body and open the pipeline in a time-saving and labor-saving manner.

In the unloading operation process, if an accident happens, an operator can quickly release the control handle 93, after the valve 81 is separated from the jacking force of the cam 90, the valve 81 automatically recovers to a closed state by the force of the spring, the valve body 8 is closed in a time-saving and labor-saving manner, and the unloading process is cut off.

And after the daily tank truck finishes the unloading operation, the operator can close the emergency cut-off valve 8 only by easily releasing the control handle 93 after laboriously closing the common cut-off valve 4. Therefore, the utility model discloses not only provide quick effectual operation solution for the risk condition of the in-process of unloading, but also can ensure operating personnel comparatively convenient accomplish in daily work and close twice trip valve through labour saving and time saving's operation mode moreover, and then ensure the security of tank car transport in-process.

The above are the technical points of the present invention, and although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can derive various similar enlightenment and changes without departing from the spirit and the claims of the present invention, and make corresponding simple changes and modifications, and such changes are all within the protection scope of the present invention.

Claims (3)

1. An emergency closing device for a tank truck comprises an emergency stop valve (8) arranged below a tank body of the tank truck, wherein the emergency stop valve (8) is connected with a discharge pipe (3), the discharge pipe (3) is connected with a common screw type stop valve (4), and the common screw type stop valve (4) is communicated with a discharge hole (5); the emergency cut-off valve (8) is provided with a valve body (80), a valve (81), a spring (84) and a ring seat (85); the valve is characterized in that a guide valve rod (83) is fixed at the center of the valve (81), one end of the guide valve rod (83) is arranged in the valve body (80), and the other end of the guide valve rod (83) protrudes out of the valve body (80); the guide valve rod (83) penetrates through the spring (84) and the ring seat (85) so that the valve (81) can be subjected to the elastic force of the spring (84) to close the valve body (80); the side of valve body (80) is provided with sleeve pipe (88), a rotation axis (89) wears to establish in sleeve pipe (88).

2. An emergency shutdown device for a tank truck according to claim 1, characterized in that: the valve (81) is provided with a conical ring surface, and a sealing ring (82) is arranged on the conical ring surface in a matching way.

3. An emergency shutdown device for a tank truck according to claim 1, characterized in that: the rotating shaft (89) drives the guide valve rod (83) through a cam (90), and the rotating shaft (89) is connected with a rotating handle (91) outside the valve body (80).

Images