Fixing and purging device for tank car unloading hose

Abstract

The utility model discloses a fixing and purging device for a tank car unloading hose, belongs to the technical field of dangerous chemical tank car equipment, and is used for fixing and purging the unloading hose of a dangerous chemical tank car. According to the technical scheme, the lower end of a stand column is perpendicularly connected with a base, the upper end of the stand column is connected with a horizontal purging pipe, the front end of the purging pipe is provided with an unloading hose connector, the unloading hose connector is connected with an unloading hose in a matched mode, the rear end of the purging pipe is connected with a purging valve, and the purging valve is connected with an air supply connector through an air supply connecting pipe. The air supply connector is connected with a purging air supply hose in a matched mode, the bottom of the purging pipe is connected with a pressure relief and deflation pipe, the lower end of the pressure relief and deflation pipe is connected with a pressure relief and deflation valve, and the lower end of the pressure relief and deflation valve is connected with a rotary deflation pipe. The device is simple in structure and convenient to operate, the unloading hose can be fixed and purged, the unloading hose is convenient to disassemble and assemble, materials are prevented from being scattered, the safety of purging work is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a device for fixing and purging an unloading hose of a hazardous chemical tank truck, belonging to the technical field of hazardous chemical tank truck equipment. Background Art

[0002] During the unloading process, hazardous chemical tankers need to use unloading hoses to connect to the lower unloading port of the vehicle for unloading. After unloading, the unloading hoses have no fixing devices, which makes the unloading hoses randomly placed at the work site, posing a risk of being crushed by vehicles and making it inconvenient for the tankers to dock at the site. At the same time, the unloading hoses need to be cleaned and sealed after unloading. If the unloading hoses are not cleaned or there is leakage in the unloading valves, hazardous materials may leak, pollute the environment, and cause safety accidents. Cleaning requires blowing the unloading pump and hoses. During the blowing, the DN80 quick connector of the unloading hose needs to be connected to the DN50 hose of the gas pipe through a DN80-DN50 reducer. During the blowing process, the unloading hoses are not fixed and may swing significantly, posing a safety risk. During the blowing process, the workload of on-site personnel is high and the operation efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fixing and purging device for a tank truck unloading hose. This fixing and purging device can fix the unloading hose and at the same time can be connected to a nitrogen pipeline to realize the purging of the machine pump and the hose, thereby improving operation safety and improving operation efficiency.

[0004] The technical solution to the above technical problems is:

[0005] A device for fixing and purging a tank truck unloading hose, comprising a base, a column, a purge pipe, an unloading hose connector, a purge valve, an air supply connecting pipe, an air supply connector, a pressure relief pipe, a pressure relief valve, and a rotating air relief pipe. The base is a square steel plate, and the base is placed on the ground. The lower end of the column is vertically connected to the base, and the upper end of the column is connected to a horizontal purge pipe. The front end of the purge pipe is equipped with an unloading hose connector, and the unloading hose connector is matched and connected to the unloading hose. The rear end of the purge pipe is connected to the purge valve, and the purge valve is connected to the air supply connector through the air supply connecting pipe. The air supply connector is matched and connected to the purge air supply hose. The bottom of the purge pipe is connected to the pressure relief pipe, and the lower end of the pressure relief pipe is connected to the pressure relief valve, and the lower end of the pressure relief valve is connected to the rotating air relief pipe.

[0006] The above-mentioned fixing and purging device for the tank truck unloading hose is characterized in that a column rotating shaft is connected between the base and the column. The column rotating shaft is a flat disc damping rotating shaft. The lower end edge of the column rotating shaft is welded to the base, and the upper end of the column rotating shaft is welded to the lower end of the column.

[0007] The fixing and purging device for the tank truck unloading hose, the unloading connecting pipe connected to the purge valve is a 45-degree steel pipe inclined downward.

[0008] The fixing and purging device of the above-mentioned tank truck unloading hose, the rotary vent pipe at the lower end of the pressure relief and air release valve is composed of a venting rotary joint and a vent pipe, the venting rotary joint is a straight-through rotary joint, the middle of the straight-through rotary joint of the venting rotary joint is a cylindrical shell, and there are rotating shafts at both ends respectively, the outer wall of the rotating shaft is threaded, and the center of the rotating shaft is a through hole, the pressure relief and air release valve is connected to the rotating shaft at one end of the venting rotary joint by a thread, and the rotating shaft at the other end of the venting rotary joint is connected to the vent pipe by a thread, and the vent pipe is inclined downward by 60 degrees.

[0009] The beneficial effects of the utility model are:

[0010] The base, column, purge pipe and unloading hose connector of the utility model can fix the unloading hose; the purge valve, air supply connecting pipe and air supply connector can be connected to the purge air supply hose to supply air to the unloading hose for purge; the pressure relief pipe, pressure relief valve and rotary air relief pipe are connected to the lower part of the purge pipe, the purge pipe is connected to the pressure relief pipe, the pressure relief pipe is connected to the pressure relief valve, and the pressure relief valve is connected to the rotary air relief pipe, so as to facilitate pressure relief in the downwind direction.

[0011] The utility model has a novel design, a simple structure and is easy to operate. It can not only fix the hose but also purge the hose pump, making it convenient for the driver to disassemble and unload the hose, thus avoiding spillage of materials. At the same time, it improves the safety of the pump pipeline purge work and improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] The markings in the figure are as follows: unloading hose 1, purge air supply hose 2, base 3, column 4, column rotating shaft 5, purge pipe 6, air supply hose connector 7, purge valve 8, unloading connecting pipe 9, unloading hose connector 10, pressure relief and air release pipe 11, pressure relief and air release valve 12, air release rotary joint 13, air release pipe 14. DETAILED DESCRIPTION

[0014] The utility model is composed of a base 3, a column 4, a column rotating shaft 5, a purge pipe 6, a vehicle unloading hose joint 7, a purge valve 8, an air supply connecting pipe 9, an air supply joint 10, a pressure relief and air release pipe 11, a pressure relief and air release valve 12, a air release rotary joint 13, and an air release pipe 14.

[0015] Figure 1As shown, the base 3 is a square steel plate, the base 3 is placed on the ground, the column 4 is a round steel pipe, and the lower end of the column 4 is vertically connected to the upper surface of the base 3 through the column rotation axis 5. The column 4 can rotate through the column rotation axis 5.

[0016] Figure 1 It is shown that the column rotating shaft 5 is a plane disc damping rotating shaft. The plane disc damping rotating shaft is a universal component. The upper and lower parts can rotate freely. The base 3 is welded to the bottom of the column rotating shaft 5, and the lower end of the column 4 is welded to the upper part of the column rotating shaft 5.

[0017] Figure 1 As shown, the upper end of the column 4 is connected to a horizontal purge pipe 6, the front end of which is fitted with an air supply hose connector 7, which mates with the air supply hose 1. The rear end of the purge pipe 6 is connected to a purge valve 8, which is connected to the unloading hose air connector 10 via an unloading connection pipe 9. The air supply connection pipe 9 is a steel pipe inclined downward at a 45-degree angle. The air supply connector 10 mates with the purge unloading hose 2. The purge unloading hose 2 is supplied with air through the air supply hose 1, with gas passing through the air supply hose connector 7, the purge pipe 6, the purge valve 8, the unloading connection pipe 9, and the unloading hose connector 10, thereby purging the unloading hose 2.

[0018] Figure 1 The bottom of the purge pipe 6 is connected to a pressure relief and air vent pipe 11, the lower end of which is connected to a pressure relief and air vent valve 12. The lower end of the pressure relief and air vent valve 12 is connected to a rotary air vent pipe. The rotary air vent pipe consists of a air vent rotary joint 13 and an air vent pipe 14. The air vent rotary joint 13 is connected to the pressure relief and air vent valve 12, and the air vent pipe 14 is connected below the air vent rotary joint 15.

[0019] Figure 1 The venting rotary joint 13 of the rotating vent pipe is a straight-through rotary joint. A straight-through rotary joint is a movable joint used for swinging or low-speed continuous rotation of rigid pipes. It rotates smoothly, has strong support, and has a long service life of specialized seals, meeting the requirements of spatial rotation transmission media. The straight-through rotary joint used in this device has a cylindrical shell in the middle, with a rotating shaft at each end. The outer wall of the rotating shaft is threaded, and the center of the rotating shaft is a through hole. The pressure relief valve 12 is connected to the rotating shaft at one end of the venting rotary joint 13 by a thread, and the rotating shaft at the other end of the venting rotary joint 13 is connected to the venting pipe 14 by a thread. The venting pipe 14 is tilted downward at 60 degrees.

[0020] The use process of this utility model is as follows:

[0021] When the operation is completed and the unloading hose 2 needs to be fixed, the operator connects the unloading hose 2 to the unloading hose connector 10 and closes the purge valve 8;

[0022] When purging is required, connect the air supply connector 7 to the purge air supply hose 1. Close the pressure relief valve 12, open the purge valve 8, and open the purge air source pipeline valve to purge. After the purge is completed, close the purge air source pipeline valve.

[0023] Adjust the bleed pipe 14 at the bottom of the rotating bleed pipe to face downwind, then open the pressure relief bleed valve 12 to relieve pressure. After pressure relief, close the purge valve 8, remove the purge air supply hose 1, and seal the air supply connector 7 with a pipe cap.

[0024] An embodiment of the present invention is as follows:

[0025] The base 3 has a length of 400 mm, a width of 400 mm, and a thickness of 5 mm;

[0026] The diameter of column 4 is 50 mm and the height is 1100 mm;

[0027] The column rotation axis 5 is a flat disc damping rotation axis 5N.m (the wire hole is 50mm);

[0028] The diameter of the purge pipe 6 is 50 mm and the length is 400 mm;

[0029] Air supply hose connector 7 is type A DN80 quick connector;

[0030] The purge valve 8 model is a DN80 stainless steel ball valve;

[0031] The diameter of the unloading connecting pipe 9 is 50mm and the length is 150mm;

[0032] The model of the unloading hose connector 10 is a DN80 type A quick connector;

[0033] The diameter of the deflation rotary joint 13 is DN15 Wanxiang straight-through rotary joint;

[0034] The diameter of the vent tube 14 is 15 mm and the length is 100 mm.

Claims

1. A fixing and purging device for a tank truck unloading hose, characterized in that: It comprises a base (3), a column (4), a purge pipe (6), a truck unloading hose connector (7), a purge valve (8), an air supply connecting pipe (9), an air supply connector (10), a pressure relief air pipe (11), a pressure relief air valve (12), and a rotating air pipe. The base (3) is a square steel plate. The base (3) is placed on the ground. The lower end of the column (4) is vertically connected to the base (3). The upper end of the column (4) is connected to the horizontal purge pipe (6). The front end of the purge pipe (6) is equipped with a truck unloading hose connector ( 7), the unloading hose connector (7) is matched and connected with the unloading hose (1), the rear end of the purge pipe (6) is connected with the purge valve (8), the purge valve (8) is connected with the air supply connector (10) through the air supply connecting pipe (9), the air supply connector (10) is matched and connected with the purge air supply hose (2), the bottom of the purge pipe (6) is connected with the pressure relief air pipe (11), the lower end of the pressure relief air pipe (11) is connected with the pressure relief air valve (12), and the lower end of the pressure relief air valve (12) is connected with the rotating air release pipe.

2. The fixing and purging device for the tank truck unloading hose according to claim 1 is characterized in that: A column rotating shaft (5) is connected between the base (3) and the column (4); the column rotating shaft (5) is a plane disc damping rotating shaft; the lower end edge of the column rotating shaft (5) is welded to the base (3); and the upper end of the column rotating shaft (5) is welded to the lower end of the column (4).

3. The fixing and purging device for the tank truck unloading hose according to claim 1 is characterized in that: The unloading connection pipe (9) connected to the purge valve (8) is a steel pipe inclined at 45 degrees in a downward direction.

4. The fixing and purging device for the tank truck unloading hose according to claim 1 is characterized in that: The rotary air release pipe at the lower end of the pressure relief air release valve (12) is composed of an air release rotary joint (13) and an air release pipe (14). The air release rotary joint (13) is a straight-through rotary joint. The middle of the straight-through rotary joint of the air release rotary joint (13) is a cylindrical shell, and the two ends are respectively provided with a rotating shaft body. The outer wall of the rotating shaft body is threaded, and the center of the rotating shaft body is a through hole. The pressure relief air release valve (12) is connected to the rotating shaft body at one end of the air release rotary joint (13) through a thread, and the rotating shaft body at the other end of the air release rotary joint (13) is connected to the air release pipe (14) through a thread. The air release pipe (14) is inclined downward by 60 degrees.

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