Ethylene oxide vacuum tail gas storage tank

Abstract

The utility model belongs to the technical field of chemical storage tanks, particularly relates to an ethylene oxide vacuum tail gas storage tank, and aims to solve the problems that in the background technology, the risk of tank body breakage exists, and the maintenance difficulty is large, the ethylene oxide vacuum tail gas storage tank comprises a tank body, a top bin is welded to the outer wall of the top of the tank body, and a ladder is fixedly connected to the outer wall of one side of the tank body. The ladder, the stand column and the protective ring are arranged on the tank body, an operator can go to the top of the tank body along the ladder, the top bin is surrounded by the stand column and the protective ring, safety protection can be provided for the operator during maintenance, the maintenance difficulty is reduced, the safety coefficient is high, a set of safety accessories is additionally arranged outside the tank body, and the maintenance cost is reduced. Under the mutual cooperation of the safety pipe, the three-way pipe, the joint, the safety valve, the explosion pipe and the explosion disc, a dual-safety explosion-proof structure taking the safety valve as a main part and taking the explosion disc as an auxiliary part is provided, so that the tank body is ensured to be absolutely damaged on site, and the problem that the tank body is broken is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical storage tanks, in particular to an ethylene oxide vacuum tail gas storage tank. Background Art

[0002] Ethylene oxide is an organic compound and a toxic carcinogen, previously used to manufacture fungicides. Ethylene oxide is flammable and explosive, making it difficult to transport over long distances and, therefore, highly localized. It is widely used in the laundry, pharmaceutical, and printing and dyeing industries. In the chemical industry, it can be used as a starter for cleaning agents.

[0003] The tail gas generated after the use of ethylene oxide needs to be collected and treated uniformly. The conventional collection method is tank storage. The tank is generally placed vertically and at a very high height, which makes maintenance difficult and risky. After the vacuum is drawn, the ethylene oxide tail gas is transported into the tank. However, the air pressure of ethylene oxide stored inside the tank is very high, and there are few safety and explosion-proof structures, so there is a risk of tank rupture. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the utility model provides an ethylene oxide vacuum tail gas storage tank, which overcomes the deficiencies of the existing technology and effectively solves the problems of the risk of tank body rupture and the difficulty in maintenance.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An ethylene oxide vacuum tail gas storage tank comprises a tank body, a top bin is welded to the top outer wall of the tank body, a ladder is fixedly connected to the outer wall of one side of the tank body, and columns are welded to the top outer wall of the tank body at equal distances outside the top bin, and protective rings are welded to the outer walls of the columns;

[0007] A safety tube is fixedly connected to the outer wall of the other side of the tank body, and a tee is installed on the outer wall of one end of the safety tube. A joint is fixedly connected to the outer wall of the bottom of the tee, and a safety valve is installed on the outer wall of the joint. A bursting tube is fixedly connected to the outer wall of one side of the tee, and a bursting disc is fixedly connected to the outer wall of one end of the bursting tube.

[0008] Preferably, an inspection panel is hinged on the outer wall of the top of the top bin.

[0009] Preferably, an exhaust pipe is fixedly connected to the outer wall of one side of the tank body, and an exhaust pump is installed on the outer wall of one end of the exhaust pipe, and a pressure relief valve is installed on the outer wall of the exhaust pipe of the exhaust pump.

[0010] Preferably, an air intake pipe is fixedly connected to the outer wall of the other side of the tank body, and an air intake pump is fixedly connected to the outer wall of one end of the air intake pipe.

[0011] Preferably, a sampling tube with a valve is fixedly connected to the bottom of the outer wall on the other side of the tank body.

[0012] Preferably, an observation tube with protective glass is welded to the outer wall of the other side of the tank body.

[0013] The beneficial effects of the utility model are:

[0014] 1. The ethylene oxide vacuum tail gas storage tank of this design is equipped with a ladder, columns and protective ring on the tank body. Operators can climb up to the top of the tank along the ladder, and the top compartment is surrounded by columns and protective rings, which can provide safety protection for operators during maintenance, thereby reducing the difficulty of maintenance and increasing the safety factor.

[0015] 2. The ethylene oxide vacuum tail gas storage tank of this design has added a set of safety accessories on the outside of the tank body. With the cooperation of the safety pipe, tee pipe, joint, safety valve, bursting pipe and bursting disc, it has a double safety explosion-proof structure with the safety valve as the main part and the bursting disc as the auxiliary part, ensuring that the tank body is safe on site and avoiding the problem of tank rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the overall structure of an ethylene oxide vacuum tail gas storage tank proposed by the utility model;

[0017] Figure 2 This is a rear view of the overall structure of an ethylene oxide vacuum tail gas storage tank proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the safety pipe connection structure of an ethylene oxide vacuum tail gas storage tank proposed by the utility model.

[0019] In the figure: 1. Tank body; 2. Ladder; 3. Column; 4. Protective ring; 5. Safety pipe; 6. Tee pipe; 7. Connector; 8. Safety valve; 9. Bursting pipe; 10. Bursting disc; 11. Top chamber; 12. Inspection panel; 13. Exhaust pipe; 14. Exhaust pump; 15. Pressure relief valve; 16. Inlet pipe; 17. Inlet pump; 18. Sampling tube; 19. Observation tube. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1, refer to Figure 2An ethylene oxide vacuum tail gas storage tank includes a tank body 1, a top bin 11 is welded to the top outer wall of the tank body 1, and an escalator 2 is fixedly connected to the outer wall of one side of the tank body 1, and columns 3 distributed at equal distances are welded to the top outer wall of the tank body 1 outside the top bin 11, and a protective ring 4 is welded to the outer wall of the column 3.

[0022] In this embodiment, by arranging the escalator 2, the column 3 and the protective ring 4 on the tank body 1, the operator can climb up to the top of the tank body 1 along the escalator 2, and rely on the column 3 and the protective ring 4 to surround the top bin 11, which can provide safety protection for the operator during maintenance, thereby reducing the difficulty of maintenance and having a high safety factor.

[0023] Example 2, refer to Figure 3 , an ethylene oxide vacuum tail gas storage tank, a safety tube 5 is fixedly connected to the outer wall of the other side of the tank body 1, and a tee pipe 6 is installed on the outer wall of one end of the safety tube 5, a joint 7 is fixedly connected to the outer wall of the bottom of the tee pipe 6, and a safety valve 8 is installed on the outer wall of the joint 7, a bursting tube 9 is fixedly connected to the outer wall of one side of the tee pipe 6, and a bursting disc 10 is fixedly connected to the outer wall of one end of the bursting tube 9.

[0024] In this embodiment, a set of safety accessories is added to the outside of the tank body 1. With the mutual cooperation of the safety pipe 5, the tee pipe 6, the joint 7, the safety valve 8, the bursting pipe 9 and the bursting disc 10, a double safety and explosion-proof structure is provided with the safety valve 8 as the main component and the bursting disc 10 as the auxiliary component, ensuring that the tank body 1 is foolproof on site and avoiding the problem of the tank body 1 being ruptured.

[0025] Reference Figure 2 An inspection plate 12 is hinged on the outer wall of the top of the top bin 11.

[0026] Reference Figure 1 An exhaust pipe 13 is fixedly connected to the outer wall of one side of the tank body 1, and an exhaust pump 14 is installed on the outer wall of one end of the exhaust pipe 13, and a pressure relief valve 15 is installed on the outer wall of the exhaust pipe of the exhaust pump 14.

[0027] Reference Figure 1 An air intake pipe 16 is fixedly connected to the outer wall of the other side of the tank body 1, and an air intake pump 17 is fixedly connected to the outer wall of one end of the air intake pipe 16.

[0028] Reference Figure 1 The bottom of the outer wall on the other side of the tank body 1 is fixedly connected to a sampling tube 18 with a valve.

[0029] Reference Figure 1 An observation tube 19 with protective glass is welded to the outer wall of the other side of the tank body 1.

[0030] Working principle: The tank body 1 is first evacuated through the vacuum pump 14, and then the ethylene oxide tail gas is transported into the tank body 1 through the air intake pump 17. A set of safety accessories is added to the outside of the tank body 1. The safety pipe 5, tee pipe 6, joint 7, safety valve 8, bursting pipe 9 and bursting disc 10 are used to form a double safety explosion-proof structure with the safety valve 8 as the main component and the bursting disc 10 as the auxiliary component, ensuring that the tank body 1 is foolproof on site. During the maintenance process, the operator can go up to the top of the tank body 1 along the escalator 2, and rely on the column 3 and the protective ring 4 to surround the top warehouse 11 to provide safety protection for the operator.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ethylene oxide vacuum tail gas storage tank, comprising a tank body (1), characterized in that: A top bin (11) is welded to the outer wall of the top of the tank body (1), and a ladder (2) is fixedly connected to the outer wall of one side of the tank body (1); columns (3) distributed at equal distances are welded to the outer wall of the top of the tank body (1) outside the top bin (11), and a protective ring (4) is welded to the outer wall of the column (3); A safety tube (5) is fixedly connected to the outer wall of the other side of the tank body (1), and a tee tube (6) is installed on the outer wall of one end of the safety tube (5). A joint (7) is fixedly connected to the outer wall of the bottom of the tee tube (6), and a safety valve (8) is installed on the outer wall of the joint (7). A bursting tube (9) is fixedly connected to the outer wall of one side of the tee tube (6), and a bursting disc (10) is fixedly connected to the outer wall of one end of the bursting tube (9).

2. An ethylene oxide vacuum tail gas storage tank according to claim 1, characterized in that: An inspection plate (12) is hingedly connected to the outer wall of the top of the top bin (11).

3. The ethylene oxide vacuum tail gas storage tank according to claim 1, characterized in that: An air extraction pipe (13) is fixedly connected to the outer wall of one side of the tank body (1), and an air extraction pump (14) is installed on the outer wall of one end of the air extraction pipe (13), and a pressure relief valve (15) is installed on the outer wall of the air outlet pipe of the air extraction pump (14).

4. The ethylene oxide vacuum tail gas storage tank according to claim 1, characterized in that: An air intake pipe (16) is fixedly connected to the outer wall of the other side of the tank body (1), and an air intake pump (17) is fixedly connected to the outer wall of one end of the air intake pipe (16).

5. The ethylene oxide vacuum tail gas storage tank according to claim 1, characterized in that: A sampling tube (18) with a valve is fixedly connected to the bottom of the outer wall on the other side of the tank body (1).

6. The ethylene oxide vacuum tail gas storage tank according to claim 1, characterized in that: An observation tube (19) with protective glass is welded to the outer wall of the other side of the tank body (1).

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