Leakage-proof device for unloading based on liquid tank transport vehicle

Abstract

The invention relates to the technical field of liquid transport vehicle unloading leakage prevention, and discloses a liquid tank transport vehicle unloading leakage-proof device which comprises a transport vehicle body, a connecting mechanism is arranged at the top of the transport vehicle body, a pressure relief mechanism is arranged on the inner wall of the connecting mechanism, and a sealing mechanism is arranged on the inner wall of the connecting mechanism. The connecting mechanism comprises an outer tank body, the outer portion of the outer tank body is installed on the top of the transport vehicle body, an inner tank body is fixedly connected to the inner portion of the outer tank body, a transport pipeline is installed on the inner wall of the inner tank body, and a discharging pipeline is fixedly connected to the end, away from the inner tank body, of the transport pipeline. Liquid is conveyed through the conveying pipeline on the inner wall, through cooperation of the splicing pipeline and the sealing ring, the sealing ring enters the sealing groove and is extruded, the sealing ring and the sealing groove are attached in a sealed mode, the problem that sealing is not tight in the high-pressure discharging process is effectively solved, it is ensured that the liquid does not leak, and safety and reliability in the discharging process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anti - leakage for liquid transport vehicle unloading, and particularly to an anti - leakage device for liquid tank transport vehicle unloading. Background Art

[0002] Liquid tank transport vehicles are widely used in various liquid transports, especially in industrial and chemical transports. These vehicles are designed to transport liquids safely and efficiently to the destination, ensuring that the liquids do not leak during transportation and avoiding pollution of the external environment. However, with the changes in the types, temperature, and pressure of liquids during transportation, the requirements for sealing technology are constantly increasing, which poses higher challenges to the sealing performance and pressure management of traditional liquid tank transport vehicles.

[0003] Existing liquid tank transport vehicles generally adopt traditional sealing rings and simple unloading systems. These systems usually rely on single - material sealing rings to prevent leakage, and the unloading pipelines mainly control the liquid flow through mechanical means. The pressure relief devices mostly adopt single - pipeline designs to cope with the possible pressure fluctuations during liquid transportation.

[0004] However, the existing sealing rings are prone to leakage in high - pressure environments, and after long - term use, the sealing effect gradually decreases. The existing sealing devices usually fail to effectively combine multiple characteristics of wear resistance, high - temperature resistance, and corrosion resistance, resulting in poor sealing effects and easy failure when facing high - temperature or corrosive liquids. Most of the existing unloading pipelines lack effective flow - regulating devices, making it difficult to ensure a smooth unloading process with large flow fluctuations, further increasing the risk of leakage. Therefore, the present invention provides an anti - leakage device for liquid tank transport vehicle unloading to solve the deficiencies existing in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an anti - leakage device for liquid tank transport vehicle unloading, which solves the problems of insufficient sealing performance, unstable flow control, untimely pressure relief, and loose splicing in the existing liquid tank transport vehicle unloading system.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A leak-proof device for discharging liquid tank trucks includes a transport vehicle body. A connection mechanism is provided on the top of the transport vehicle body. A pressure relief mechanism is provided on the inner wall of the connection mechanism. A sealing mechanism is provided on the inner wall of the connection mechanism. The connection mechanism includes an outer tank body. The outside of the outer tank body is installed on the top of the transport vehicle body. An inner tank body is fixedly connected inside the outer tank body. A transport pipeline is installed on the inner wall of the inner tank body. One end of the transport pipeline away from the inner tank body is fixedly connected to a discharge pipeline. A splicing pipeline is provided inside the discharge pipeline. A first flange is fixedly connected to the outside of the splicing pipeline. A second flange is fixedly connected to the outside of the discharge pipeline. The first flange and the second flange are mutually attached.

[0007] Preferably, the sealing mechanism includes a sealing ring. The outside of the sealing ring is fixedly connected to one end of the splicing pipeline. A plurality of springs are fixedly connected to the inside of the sealing ring. A sealing groove is opened on the inner side of the discharge pipeline. The sealing ring and the sealing groove are mutually attached.

[0008] Preferably, the pressure relief mechanism includes a pressure relief pipeline. One end of the pressure relief pipeline is installed on the inner wall of the inner tank body. The end of the pressure relief pipeline away from the inner tank body is fixedly connected to a discharge pipeline. The end of the discharge pipeline away from the combined safety valve is arranged outside the outer tank body.

[0009] Preferably, a maintenance pipeline is installed on the top of the outer tank body. A protective cover is installed at the tail end of the outer tank body.

[0010] Preferably, a wear-resistant layer is provided on the outside of the sealing ring. A high-temperature resistant layer is provided on the inside of the wear-resistant layer. A corrosion-resistant layer is provided on the inside of the high-temperature resistant layer.

[0011] Preferably, the wear-resistant layer is made of nitrile rubber material. The high-temperature resistant layer is made of fluororubber material. The corrosion-resistant layer is made of polytetrafluoroethylene material.

[0012] Preferably, a valve is installed inside the discharge pipeline. A combined safety valve is installed on the outside of the pressure relief pipeline.

[0013] Preferably, a plurality of slots are penetrated through the outside of the first flange and the second flange. The slot openings of the first flange and the second flange correspond to each other one by one. The first flange and the second flange are fixedly connected by bolts.

[0014] The present invention provides a leak-proof device for discharging liquid tank trucks. It has the following beneficial effects: 1. The present invention is fixedly installed on the top of a transport vehicle body through an outer tank body, and an inner tank body is fixed within the outer tank body. The liquid is transported through a transport pipeline on the inner wall. Through the cooperation of a splicing pipeline and a sealing ring, the sealing ring enters the sealing groove and is squeezed, causing the sealing ring to be in sealing fit with the sealing groove, effectively solving the problem of poor sealing during high-pressure discharging, ensuring that the liquid does not leak, and enhancing the safety and reliability of the discharging process.

[0015] 2. Through the wear-resistant layer, high-temperature resistant layer, and corrosion-resistant layer of the sealing ring, the present invention effectively improves the sealing performance. The wear-resistant layer made of nitrile rubber bears friction, the high-temperature resistant layer of fluororubber copes with high temperatures, and the corrosion-resistant layer of polytetrafluoroethylene ensures resistance to corrosive liquids. The flow rate of the discharging pipeline is controlled by a valve, and the pressure relief pipeline and the safety valve jointly ensure that excessive pressure is released in a timely manner, thereby ensuring a safe and stable discharging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present invention; Figure 2 is a schematic structural view of the inner tank body of the present invention; Figure 3 is a schematic structural view of the pressure relief pipeline of the present invention; Figure 4 is a schematic structural view of the sealing groove of the present invention; Figure 5 is a schematic structural view of the first flange of the present invention; Figure 6 is Figure 4 an enlarged view of part A in Figure 7 is a schematic view of the wear-resistant layer of the present invention.

[0017] Wherein, 1. Transport vehicle body; 2. Connecting mechanism; 201. Outer tank body; 202. Inner tank body; 203. Transport pipeline; 204. Discharging pipeline; 205. Valve; 206. First flange; 207. Splicing pipeline; 208. Bolt; 209. Second flange; 3. Pressure relief mechanism; 301. Pressure relief pipeline; 302. Combined safety valve; 303. Discharge pipeline; 4. Protective cover; 5. Maintenance pipeline; 6. Sealing mechanism; 601. Sealing ring; 602. Spring; 603. Sealing groove; 7. Wear-resistant layer; 8. High-temperature resistant layer; 9. Corrosion-resistant layer. DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0019] Please refer to the attached Figure 1 - attached Figure 6 , an anti-leakage device for discharging liquid from a liquid tank truck according to an embodiment of the present invention includes a transport vehicle body 1. A connection mechanism 2 is provided on the top of the transport vehicle body 1. A pressure relief mechanism 3 is provided on the inner wall of the connection mechanism 2. The pressure relief mechanism 3 can effectively release the excess pressure in the inner tank 202. A sealing mechanism 6 is provided on the inner wall of the connection mechanism 2. The sealing mechanism 6 ensures that the liquid will not leak during the discharging process. The connection mechanism 2 includes an outer tank 201. The outside of the outer tank 201 is installed on the top of the transport vehicle body 1. The outer tank 201 plays a supporting role in accommodating the inner tank 202. An inner tank 202 is fixedly connected inside the outer tank 201. The inner tank 202 is used to store liquid. A transport pipeline 203 is installed on the inner wall of the inner tank 202. The transport pipeline 203 is responsible for transporting the liquid to the discharging pipeline 204. One end of the transport pipeline 203 far from the inner tank 202 is fixedly connected to the discharging pipeline 204. The discharging pipeline 204 is responsible for smoothly discharging the liquid. A splicing pipeline 207 is provided inside the discharging pipeline 204. The splicing pipeline 207 can be connected to a flange. A flange one 206 is fixedly connected to the outside of the splicing pipeline 207. The flange one 206 provides a firm connection structure. A flange two 209 is fixedly connected to the outside of the discharging pipeline 204. The flange two 209 and the flange one 206 jointly ensure the stable connection of the discharging pipeline 204. The flange one 206 and the flange two 209 are mutually attached and fixedly connected by bolts 208. The bolts 208 ensure the firm connection between the two. An inspection pipeline 5 is installed on the top of the outer tank 201. The inspection pipeline 5 facilitates the inspection and maintenance of the outer tank 201. A protective cover 4 is installed at the tail end of the outer tank 201. The protective cover 4 prevents foreign objects from entering the outer tank 201. A plurality of grooves are respectively formed through the outside of the flange one 206 and the flange two 209. The notches of the flange one 206 and the flange two 209 are in one-to-one correspondence. The matching of the notches ensures the accuracy of the installation process. The flange one 206 and the flange two 209 are fixedly connected by bolts 208.

[0020] Please refer to the attached Figure 4 - attached Figure 7, the sealing mechanism 6 includes a sealing ring 601. The outside of the sealing ring 601 is fixedly connected to one end of the splicing pipeline 207. A plurality of springs 602 are fixedly connected to the inside of the sealing ring 601. The springs 602 enhance the adhesion force between the sealing ring 601 and the sealing groove 603 by providing uniform pressure. A sealing groove 603 is provided inside the discharging pipeline 204. The sealing groove 603 and the sealing ring 601 are mutually fitted to form a tight sealing interface. A wear-resistant layer 7 is provided on the outside of the sealing ring 601. The wear-resistant layer 7 can effectively withstand the friction of the pipeline during the discharging process. A high-temperature resistant layer 8 is provided on the inside of the wear-resistant layer 7. The high-temperature resistant layer 8 can maintain the sealing performance in a high-temperature environment. A corrosion-resistant layer 9 is provided on the inside of the high-temperature resistant layer 8. The corrosion-resistant layer 9 ensures that the sealing ring 601 is not damaged when transporting corrosive liquids. The wear-resistant layer 7 is made of nitrile rubber material, and nitrile rubber has good wear resistance. The high-temperature resistant layer 8 is made of fluororubber material, and fluororubber is high-temperature resistant and anti-aging, adapting to more demanding working environments. The corrosion-resistant layer 9 is made of polytetrafluoroethylene material, and polytetrafluoroethylene has excellent corrosion resistance.

[0021] Please refer to the attached Figure 2 - attached Figure 3 , the pressure relief mechanism 3 includes a pressure relief pipeline 301. One end of the pressure relief pipeline 301 is installed on the inner wall of the inner tank 202 to ensure that when the pressure in the inner tank 202 is too high, the pressure can be safely released through the pressure relief pipeline 301. The end of the pressure relief pipeline 301 far from the inner tank 202 is fixedly connected to a discharge pipeline 303. The discharge pipeline 303 discharges the excess pressure to the outside to prevent damage to the pipeline or the tank due to excessive pressure. The end of the discharge pipeline 303 far from the combined safety valve 302 is arranged outside the outer tank 201. A valve 205 is installed inside the discharging pipeline 204. The valve 205 controls the liquid flow during the discharging process. A combined safety valve 302 is installed outside the pressure relief pipeline 301. The combined safety valve 302 automatically opens when the pressure in the inner tank 202 exceeds the set value to release the excess pressure and ensure that the pressure control during transportation is within a safe range.

[0022] Working principle: When using this device, it is fixedly installed on the top of the transport vehicle body 1 through the outer tank 201. The inner tank 202 is fixedly installed inside the outer tank 201, and the liquid is transported in cooperation with the transport pipeline 203 on the inner wall of the inner tank 202. When the transport vehicle is in the discharging state, the liquid enters the discharging pipeline 204 through the transport pipeline 203. By approaching and splicing the discharging pipeline 204 and the splicing pipeline 207 to each other, the sealing ring 601 at one end of the splicing pipeline 207 enters the sealing groove 603 and is extruded, so that during the process of the sealing ring 601 being subjected to the extrusion force, the plurality of springs 602 are simultaneously provided with pressure, and then the plurality of springs 602 extrude the sealing ring 601, so that the sealing ring 601 is in sealing fit with the sealing groove 603, effectively preventing liquid leakage.

[0023] A wear-resistant layer 7 is provided on the outer side of the sealing ring 601, and its inner side is a high-temperature resistant layer 8 and a corrosion-resistant layer 9. The wear-resistant layer 7 is made of nitrile rubber to withstand long-term friction and wear. The high-temperature resistant layer 8 is made of fluororubber to meet the transportation requirements in high-temperature environments. The corrosion-resistant layer 9 uses polytetrafluoroethylene material to ensure good resistance to corrosive liquids. When the liquid passes through the discharge pipeline 204, the valve 205 controls the flow rate of the liquid to ensure the smooth progress of the discharging process. In addition, the pressure relief pipeline 301 and the combined safety valve 302 work together. When the pressure in the inner tank 202 is too high, the excess pressure is released through the pressure relief pipeline 301 to avoid pipeline damage caused by excessive pressure. One end of the pressure relief pipeline 301 far from the inner tank 202 is connected to the discharge pipeline 303 to ensure that the pressure is effectively discharged to the outside.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof device for discharging liquid tank trucks, comprising a transport vehicle body (1), characterized in that, A connection mechanism (2) is provided at the top of the transport vehicle body (1). A pressure relief mechanism (3) is provided on the inner wall of the connection mechanism (2), and a sealing mechanism (6) is provided on the inner wall of the connection mechanism (2). The connection mechanism (2) includes an outer tank body (201). The outside of the outer tank body (201) is installed on the top of the transport vehicle body (1). An inner tank body (202) is fixedly connected inside the outer tank body (201). A transport pipeline (203) is installed on the inner wall of the inner tank body (202). One end of the transport pipeline (203) away from the inner tank body (202) is fixedly connected to a discharge pipeline (204). A splicing pipeline (207) is provided inside the discharge pipeline (204). A first flange (206) is fixedly connected to the outside of the splicing pipeline (207). A second flange (209) is fixedly connected to the outside of the discharge pipeline (204). The first flange (206) and the second flange (209) are mutually attached.

2. The anti-leakage device for discharging of a liquid tank truck according to claim 1, characterized in that, The sealing mechanism (6) includes a sealing ring (601). The outside of the sealing ring (601) is fixedly connected to one end of the splicing pipeline (207). A plurality of springs (602) are fixedly connected to the inside of the sealing ring (601). A sealing groove (603) is formed inside the discharge pipeline (204). The sealing ring (601) and the sealing groove (603) are mutually attached.

3. The anti-leakage device for unloading a liquid tank truck according to claim 1, characterized in that, The pressure relief mechanism (3) includes a pressure relief pipeline (301). One end of the pressure relief pipeline (301) is installed on the inner wall of the inner tank body (202). One end of the pressure relief pipeline (301) away from the inner tank body (202) is fixedly connected to a discharge pipeline (303). One end of the discharge pipeline (303) away from the combined safety valve (302) is arranged outside the outer tank body (201).

4. A leak-proof device for discharging a liquid tank truck according to claim 1, characterized in that, An inspection pipeline (5) is installed on the top of the outer tank body (201). A protective cover (4) is installed at the tail end of the outer tank body (201).

5. The anti-leakage device for discharging of a liquid tank truck according to claim 2, characterized in that, A wear-resistant layer (7) is provided on the outside of the sealing ring (601). A high-temperature resistant layer (8) is provided on the inside of the wear-resistant layer (7). A corrosion-resistant layer (9) is provided on the inside of the high-temperature resistant layer (8).

6. The anti-leakage device for unloading a liquid tank truck according to claim 5, characterized in that, The wear-resistant layer (7) is made of nitrile rubber material. The high-temperature resistant layer (8) is made of fluororubber material. The corrosion-resistant layer (9) is made of polytetrafluoroethylene material.

7. The anti-leakage device for discharging of a liquid tank truck according to claim 3, characterized in that, A valve (205) is installed inside the discharge pipeline (204). A combined safety valve (302) is installed on the outside of the pressure relief pipeline (301).

8. A leak-proof device for discharging a liquid tank truck according to claim 1, characterized in that, A plurality of slots are penetrated through the outsides of the first flange (206) and the second flange (209). The slot openings of the first flange (206) and the second flange (209) correspond to each other one by one. The first flange (206) and the second flange (209) are fixedly connected by bolts (208).

Images