Tank container

Abstract

The present invention provides a tank container. The tank container includes a tank body, a frame, a sewage suction pipeline, a sewage discharge pipeline and a vacuum pumping pipeline. A sewage suction port, a sewage discharge port and a vacuum pumping interface are formed on the tank body, and the vacuum pumping interface is communicated with the gas phase space of the tank body; the frame is arranged outside the tank body and supports the tank body; the sewage suction pipeline has a sewage suction inlet end and a sewage suction outlet end, the sewage suction inlet end is used for communicating with the outside, and the sewage suction outlet end is communicated with the sewage suction port so as to be able to suck substances from the outside into the tank body; the sewage discharge pipeline has an external interface end and a tank body interface end, the tank body interface end is communicated with the sewage discharge port, and the external interface end is used for communicating with the outside so as to be able to discharge the substances in the tank body to the outside; the vacuum pumping pipeline has a gas inlet end and a gas outlet end, the gas inlet end is used for communicating with the outside, and the gas outlet end is communicated with the vacuum pumping interface so as to be able to pump vacuum in the tank body to generate negative pressure in the tank body and suck substances from the outside into the tank body.

Description

Technical Field

[0001] The present invention relates to the field of containers, and particularly to a tank container. Background Art

[0002] A vacuum sewage suction truck is a special vehicle used for sucking, transporting, and moving sludge and sewage in sewers, rainwater wells, and sedimentation wells. It can greatly reduce the labor intensity of the heavy and dangerous sewer construction operations of municipal workers and protect them from harmful toxic gases.

[0003] Currently, a vacuum sewage suction truck mainly consists of a vehicle head, a tank body, pipelines, a vehicle body, and accessories. Among them, the tank body and the vehicle body are generally of a fixed structure, which is difficult to disassemble and has poor flexibility. Summary of the Invention

[0004] The purpose of the present invention is to provide a tank container to solve the problem of poor flexibility of the existing vacuum sewage suction truck in the prior art.

[0005] To solve the above technical problems, the present invention provides a tank container, including: a tank body, on which a sewage suction port, a sewage discharge port, and a vacuum pumping interface are provided, and the vacuum pumping interface is communicated with the gas phase space of the tank body; a frame, arranged outside the tank body and supporting the tank body; a sewage suction pipeline, connected and fixed to the frame or the tank body, the sewage suction pipeline having a sewage suction inlet end and a sewage suction outlet end, the sewage suction inlet end being used for communicating with the outside, and the sewage suction outlet end being communicated with the sewage suction port of the tank body so as to be able to suck substances from the outside into the tank body; a sewage discharge pipeline, connected and fixed to the frame or the tank body, the sewage discharge pipeline having an external interface end and a tank body interface end, the tank body interface end being communicated with the sewage discharge port of the tank body, and the external interface end being used for communicating with the outside so as to be able to discharge the substances in the tank body to the outside; a vacuum pumping pipeline, connected and fixed to the frame or the tank body, the vacuum pumping pipeline having a gas inlet end and a gas outlet end, the gas inlet end being used for communicating with the outside, and the gas outlet end being communicated with the vacuum pumping interface of the tank body so as to be able to pump vacuum in the tank body to generate negative pressure in the tank body and suck substances from the outside into the tank body.

[0006] In one embodiment, there is a height difference between the sewage suction inlet end and the sewage suction outlet end, and the sewage suction inlet end is located below the sewage suction outlet end.

[0007] In one embodiment, the sewage suction pipeline includes a vertical pipe section and a horizontal pipe section connected to the vertical pipe section, the horizontal pipe section extends along the axial direction of the tank body, the sewage suction outlet end is located at the free end of the horizontal pipe section, the vertical pipe section is located at the first end of the tank body, and the sewage suction inlet end is located at the free end of the vertical pipe section.

[0008] In one embodiment, the tank body is offset towards one end of the frame, so as to form a receiving space between the tank body and the other end of the frame, and the receiving space is used for receiving the sewage suction pipeline, the sewage discharge pipeline and the vacuum pumping pipeline.

[0009] In one embodiment, the sewage discharge pipeline is arranged at the bottom of the tank body and extends along the axial direction of the tank body, and the external interface end of the sewage discharge pipeline is located in the receiving space.

[0010] In one embodiment, the vacuum pumping pipeline includes a first pipe section, a third pipe section and a second pipe section connecting the first pipe section and the third pipe section. The first pipe section is located in the receiving space, the second pipe section and the third pipe section are located at the top of the tank body, the gas inlet end is located at the free end of the first pipe section, and the gas outlet end is located at the free end of the third pipe section.

[0011] In one embodiment, an overcharge protection device is provided on the vacuum pumping pipeline, and the overcharge protection device is used for disconnecting the connection between the vacuum pumping pipeline and the interior of the tank body when the liquid in the tank body reaches the highest allowable filling liquid level.

[0012] In one embodiment, a pressurizing port is further opened on the tank body, and the pressurizing port is communicated with the gas phase space of the tank body; the tank container further includes a pressurizing pipeline, the pressurizing pipeline has a pressurizing inlet end and a pressurizing outlet end, the pressurizing outlet end is communicated with the pressurizing port, and the pressurizing inlet end is communicated with the outside to be able to pressurize the interior of the tank body.

[0013] In one embodiment, an end manhole is provided on the tank body, and the end manhole and the sewage discharge pipeline are respectively located at opposite ends of the tank body.

[0014] In one embodiment, the tank container further includes: a safety valve, which is arranged at the top of the tank body and is communicated with the gas phase space in the tank body, and a pressure value is preset for the safety valve, and when the pressure in the tank body reaches the pressure value, the safety valve opens; a walkway, which is arranged at the top of the tank body and extends along the axial direction of the tank body; a liquid level gauge, which is arranged on one side of the tank body and is communicated with the interior of the tank body; a baffle plate, which is fixed on the inner wall of the tank body.

[0015] As can be seen from the above technical solutions, the advantages and positive effects of the present invention are as follows: The tank container of the present invention includes a tank body, a frame, a sewage suction pipeline, a sewage discharge pipeline, and a vacuum pumping pipeline. The tank body is evacuated through the vacuum pumping pipeline to generate negative pressure in the tank body, so that substances from the outside are transported into the tank body, or the substances in the tank body are discharged outward through the sewage discharge pipeline, thereby realizing the vacuum sewage suction and storage and transportation functions of the tank container. Moreover, the tank container can cooperate with general-purpose tank container transportation equipment, so that the storage and transportation functions of the tank container can be independent of each other, and the flexibility is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The front view of one embodiment of the tank container in the present invention;

[0017] Figure 2 The top view of one embodiment of the tank container in the present invention;

[0018] Figure 3 The front view of one embodiment of the tank container in the present invention;

[0019] Figure 4 The rear view of one embodiment of the tank container in the present invention;

[0020] Figure 5 The front view of one embodiment of the end manhole in the present invention;

[0021] Figure 6 The side view of one embodiment of the end manhole in the present invention;

[0022] Figure 7 The side view of one embodiment of the vacuum pumping pipeline in the present invention;

[0023] Figure 8 The front view of one embodiment of the sewage discharge pipeline in the present invention;

[0024] Figure 9 The side view of one embodiment of the sewage discharge pipeline in the present invention;

[0025] Figure 10 The front view of one embodiment of the sewage suction pipeline in the present invention;

[0026] Figure 11 The top view of one embodiment of the sewage suction pipeline in the present invention;

[0027] Figure 12 The side view of one embodiment of the sewage suction pipeline in the present invention;

[0028] Figure 13 The front view of one embodiment of the vacuum pumping pipeline in the present invention;

[0029] Figure 14 This is a top view of one embodiment of the vacuum pumping pipeline in the present invention.

[0030] Among them, the reference numerals are explained as follows: 1. Tank container; 11. Tank body; 111. Cylindrical body; 112. Head; 113. Reinforcing ring; 115. End manhole; 116. Top manhole; 12. Frame; 121. End frame; 122. Side beam; 13. Vacuum pumping pipeline; 131. Gas inlet end; 132. First valve member; 133. Gas outlet end; 134. Float ball; 135. Pressure gauge; 136. First pipe section; 137. Second pipe section; 138. Third pipe section; 14. Sewage suction pipeline; 141. Sewage suction inlet end; 142. Second valve member; 143. Sewage suction outlet end; 144. Vertical pipe section; 145. Horizontal pipe section; 146. Flange; 15. Sewage discharge pipeline; 151. External interface end; 152. Third valve member; 153. Tank body interface end; 16. Pressurization pipeline; 171. Liquid level gauge; 172. Safety valve; 173. Walkway; 174. Baffle plate. Detailed implementation manners

[0031] Typical implementation manners embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different implementation manners, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0032] In order to further illustrate the principle and structure of the present invention, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] Refer to Figures 1-4 , the present invention provides a tank container 1, which specifically includes a tank body 11, a frame 12, a vacuum pumping pipeline 13, a sewage suction pipeline 14, and a sewage discharge pipeline 15. This tank container can be used to collect, store, and transport liquid substances such as feces, mud, and crude oil. The tank container 1 in this embodiment is a standard tank container 1 (ISO), which can cooperate with general-purpose tank container 1 transportation equipment, and thus the storage and transportation functions of the tank container are independent of each other and have good flexibility. For the convenience of description, it is stipulated that the length direction of the tank container 1 is the longitudinal direction and the width direction is the transverse direction.

[0034] The frame 12 includes two end frames 121 arranged at intervals, side beams 122 connected between the two end frames 121, and corner members connecting the end frames and the side beams. The frame 12 facilitates the transportation and stacking of the tank container 1.

[0035] The tank body 11 is disposed within the framework 12. In this embodiment, the tank body 11 is offset towards one end of the framework 12, creating a receiving space between the tank body 11 and the other end of the framework 12. In this embodiment, the tank body 11 is offset towards the right end of the framework 12, creating a receiving space between the tank body 11 and the left end of the framework 12. Herein, the left end and the right end are with reference to Figure 1 the viewing direction, facing the tank body 11, the left end is the side on the left of the central line of the tank body 11, and the right end is the side on the right.

[0036] Specifically, the tank body 11 has a first end and a second end. Along the longitudinal direction of the framework 12, the distance between the first end and the longitudinal center line of the framework 12 is less than the distance between the second end and the longitudinal center line of the framework 12. Thus, a receiving space is formed between the first end of the tank body 11 and the framework 12.

[0037] Specifically, the tank body 11 includes a cylindrical body 111, end heads 112 connected to both ends of the cylindrical body 111, and a plurality of reinforcing rings 113. The reinforcing rings 113 are protruded circumferentially along the outer wall of the tank body 11 and are spaced axially along the tank body 11. The reinforcing rings 113 are disposed on the cylindrical body 111 of the tank body 11 to increase the strength of the tank body 11.

[0038] The tank body 11 is provided with a sewage suction port, a sewage discharge port, and a vacuum pumping interface.

[0039] Specifically, the sewage suction port is opened at the top of the tank body 11.

[0040] The vacuum pumping interface is opened at the top of the tank body 11 and is communicated with the gas phase space of the tank body 11. In other embodiments, the vacuum pumping interface may also be opened at other positions above the highest allowable filling liquid level inside the tank body 11, which is set according to actual needs.

[0041] The sewage discharge port is opened at the bottom of the tank body 11 to facilitate the discharge of the substances inside the tank body 11 to the outside. In this embodiment, the sewage discharge port is opened at the first end of the tank body 11. In other embodiments, the opening position of the sewage discharge port can be set according to actual needs.

[0042] Refer to Figure 1 、 Figure 5 and Figure 6 , an end manhole 115 is provided at the second end of the tank body 11 to allow the staff to enter the tank body 11 to clean the solids deposited inside the tank body 11 after long-term use, thereby enabling the smooth discharge of the liquid inside the tank body 11. Specifically, the end manhole 115 is located at the bottom of the second end of the tank body 11, facilitating the entry and exit of the staff. In other embodiments, along the height direction of the tank container 1, the height of the end manhole 115 can also be set in the middle, and the height position of the end manhole 115 can be set according to actual needs.

[0043] The top of the tank body 11 is provided with a top manhole 116 for staff to enter the tank body 11 for cleaning and maintenance work.

[0044] Refer to Figure 7 and Figure 8 The vacuum pumping pipeline 13 has a gas inlet end 131 and a gas outlet end 133. The gas inlet end 131 is communicated with the outside, and the gas outlet end 133 is communicated with the vacuum pumping interface of the tank body 11, and then is communicated with the inside of the tank body 11 to vacuum the tank body 11, so that a pressure difference is generated between the inside of the tank body 11 and the outside, and then substances from the outside are sucked into the tank body 11 through the sewage suction pipeline 14.

[0045] Specifically, the vacuum pumping pipeline 13 includes a first pipe section 136, a second pipe section 137 and a third pipe section 138. The second pipe section 137 connects the first pipe section 136 and the third pipe section 138. Among them, the first pipe section 136 is located in the accommodating space and extends from the bottom of the frame 12 to the corner at the top of the frame 12. The second pipe section 137 is connected to the first pipe section 136 at the corner at the top of the frame 12, and the second pipe section 137 extends along the direction from the first end to the second end of the tank body 11. The third pipe section 138 extends along the transverse direction of the tank body 11. The gas inlet end 131 is located at the free end of the first pipe section 136, and the gas outlet end 133 is located at the free end of the third pipe section 138.

[0046] Among them, the first pipe section 136 has a bent portion that bends towards the tank body 11. A first valve member 132 for controlling the on-off between the vacuum pumping pipeline 13 and the inside of the tank body 11 is provided on the first pipe section 136. The first valve member 132 is provided on the bent portion to avoid the frame 12 and save space. When the tank container 1 is performing vacuum pumping work, the first valve member 132 is opened, and the vacuum pumping pipeline 13 is communicated with the inside of the tank body 11 to be able to perform vacuum pumping work, and then a negative pressure is generated inside the tank body 11.

[0047] A pressure gauge 135 is provided on the vacuum pumping pipeline 13 for observing the pressure value inside the tank body 11.

[0048] Please combine Figure 3 and Figure 9 Along the transverse direction of the tank body 11, the vacuum pumping pipeline 13 and the sewage suction pipeline 14 are respectively located on opposite sides of the transverse central axis of the tank body 11. With this design, the vacant space between the frame 12 and the tank body 11 is fully utilized, and reasonable layout is adopted to save space.

[0049] An overcharge protection device is also provided on the vacuum pumping pipeline 13. When the liquid in the tank body 11 reaches the highest allowable filling liquid level, the overcharge protection device disconnects the connection between the vacuum pumping pipeline 13 and the inside of the tank body 11, and stops vacuuming the tank body 11, and then stops continuously transporting substances from the outside into the tank body 11.

[0050] In this embodiment, the overcharge protection device is a float ball 134 disposed inside the tank body 11. When the liquid level in the tank body 11 reaches the maximum allowable filling level, the float ball 134 blocks the vacuum pumping pipeline 13, stops vacuum pumping, the sewage suction pipeline 14 loses the sewage suction power, and stops liquid inlet. Since the vacuum pumping pipeline 13 is always connected to the gas phase space, the overcharge protection device is arranged at a position on the vacuum pumping pipeline 13 that is convenient for personnel to observe, and the positive and negative pressure gauges 135 are connected. In this way, the internal pressure condition of the tank body 11 can be understood at any time, which is convenient for operation and protects the tank body 11. In other embodiments, the overcharge protection device can also be arranged on the sewage suction pipeline 14. For example, closing the sewage suction pipeline 14 when it is full can also play a role in overcharge protection.

[0051] In other implementations, the overcharge protection device can also be other than the float ball 134, which is not limited herein.

[0052] The sewage suction pipeline 14 is fixedly connected to the frame 12. Refer to Figures 10-12 , the sewage suction pipeline 14 has a sewage suction inlet end 141 and a sewage suction outlet end 143. The sewage suction inlet end 141 is used to communicate with the outside, and the sewage suction outlet end 143 is communicated with the sewage suction port of the tank body 11 so as to suck substances from the outside into the tank body 11. Specifically, the sewage suction pipeline 14 includes a vertically connected vertical pipe section 144 and a horizontal pipe section 145. Among them, the horizontal pipe section 145 extends along the axial direction of the tank body 11, and the free end of the horizontal pipe section 145 is the sewage suction outlet end. The vertical pipe section 144 is located in the accommodation space, and the free end of the vertical pipe section 144 is the sewage suction inlet end 141.

[0053] Refer to Figure 11 , the horizontal pipe section 145 is located at the top of the tank body 11, the vertical pipe section 144 is located in the accommodation space, and the sewage suction inlet end 141 is located at the bottom of the tank body 11, so that the sewage suction inlet end 141 of the sewage suction pipeline 14 is lower than the sewage suction outlet end 143. Therefore, the liquid in the sewage suction pipeline 14 will flow back to the outside without pressure, so that there is no residual liquid in the sewage suction pipeline 14 after the work is completed, reducing the risk of the liquid solidifying and blocking the sewage suction pipeline 14. Further, the sewage suction outlet end 143 is arranged at the top of the tank body 11, so it is located above the maximum allowable filling level in the tank body 11, avoiding the phenomenon that the liquid in the tank body 11 flows back into the pipeline due to splashing or the like.

[0054] Specifically, the vertical section extends to the corner of the frame 12 and is connected to the horizontal section. That is, the vertical section and the horizontal section of the sewage suction pipeline 14 are connected at the corner of the frame 12, making full use of the space of the frame 12 and reducing the overall volume of the tank container 1.

[0055] Refer to Figure 12, a second valve member 142 for controlling the connection and disconnection between the sewage suction pipeline 14 and the interior of the tank body 11 is provided on the sewage suction pipeline 14. When the tank container 1 performs sewage suction work, the second valve member 142 is opened, and the sewage suction pipeline 14 is communicated with the interior of the tank body 11 so as to be able to transport external substances into the tank body 11.

[0056] In this embodiment, the material of the sewage suction pipeline 14 is steel pipe, and the sewage suction outlet end 143 is connected to the tank body 11 through a flange 146.

[0057] The sewage discharge pipeline 15 is fixedly connected to the tank body 11. Refer to Figure 13 , the sewage discharge pipeline 15 has an external interface end 151 and a tank body interface end 153. The tank body interface end 153 is communicated with the sewage discharge port of the tank body 11, and the external interface end 151 is used to communicate with the outside so as to be able to discharge the substances in the tank body 11 to the outside. In this embodiment, the sewage discharge pipeline 15 is arranged in the accommodation space and extends along the axial direction of the tank body 11.

[0058] Refer to Figure 14 , along the transverse direction of the tank body 11, the sewage discharge pipeline 15 is arranged in the middle of the tank body 11. In other embodiments, the position where the sewage discharge pipeline 15 is arranged on the tank body 11 can also be set according to actual needs.

[0059] A second valve member 142 for controlling the connection and disconnection between the sewage discharge pipeline 15 and the interior of the tank body 11 is provided on the sewage discharge pipeline 15. When the tank container 1 performs sewage discharge work, the second valve member 142 is opened, and the sewage discharge pipeline 15 is communicated with the interior of the tank body 11 so as to be able to discharge the substances in the tank body 11 outward.

[0060] The sewage discharge pipeline 15 is arranged at the first end of the tank body 11, and the end manhole 115 is arranged at the second end of the tank body 11, making full use of the space at both ends of the tank body 11, reducing the difficulty of design and manufacture, and the usage requirements and frequencies of the end manhole 115 and the sewage discharge pipeline 15 are different. Setting them at both ends of the tank body 11 respectively is safer to use.

[0061] Please refer to again Figures 1-4 , the tank container 1 in this embodiment further includes a pressurization pipeline 16, a liquid level gauge 171, a safety valve 172, a walkway 173 and a wave baffle 174.

[0062] The pressurization pipeline 16 is used to increase the pressure in the gas phase space when discharging substances outward, thereby accelerating the sewage discharge speed. Specifically, refer to Figure 4 , the external interface end 151 of the pressurization pipeline 16 is located at the first end of the tank body 11 and at the bottom of the tank body 11, and the tank body interface end of the pressurization pipeline 16 is communicated with the gas phase space of the tank body 11.

[0063] In other embodiments, the pressurization pipeline 16 may not be provided separately. When it is necessary to accelerate the sewage discharge speed, this function can be achieved through the vacuum extraction pipeline 13.

[0064] The liquid level gauge 171 is arranged on one side of the tank body 11. In this embodiment, the liquid level gauge 171 and the vacuum extraction pipeline 13 are on the same side. The liquid level gauge 171 is used to display the liquid level height of the substance in the tank body 11.

[0065] Refer to Figure 2 , the safety valve 172 is arranged on the top of the tank body 11. When the pressure in the tank body 11 reaches the preset pressure value of the safety valve 172, the safety valve 172 automatically opens to discharge gas to ensure the safety inside the tank body 11.

[0066] Refer to Figure 2 , the walkway 173 is arranged on the top of the tank body 11, which is convenient for the staff to walk and operate on the top of the tank body 11.

[0067] Participate in Figure 1 , the anti-wave baffle 174 is fixed on the inner wall of the tank body 11 to reduce the surging of the liquid in the tank body 11 during transportation. In this embodiment, two anti-wave baffles 174 are arranged at intervals along the axial direction of the tank body 11. In other embodiments, the number of anti-wave baffles 174 can be set according to actual needs.

[0068] Working principle of the tank container 1:

[0069] Connect the gas inlet end 131 of the vacuum extraction pipeline 13 to the vacuum pump, connect the sewage suction inlet end 141 of the sewage suction pipeline 14 to the outside, open the first valve member 132 on the vacuum extraction pipeline 13 and the second valve member 142 on the sewage suction pipeline 14, keep the third valve member 152 on the sewage discharge pipeline 15 closed, evacuate the tank body 11 to generate negative pressure inside the tank body 11 to suck the external substances into the tank body 11, that is, the sewage suction process. Observe the liquid level in the tank body 11 through the liquid level gauge 171. When the liquid level in the tank body 11 reaches the maximum allowable filling liquid level or close the first valve member 132 on the vacuum extraction pipeline 13 according to actual needs, stop evacuating and stop sewage suction, and then close the second valve member 142 on the sewage suction pipeline 14. When sewage discharge is required, connect the external interface end 151 of the sewage discharge pipeline 15 to the outside, open the third valve member 152 on the sewage discharge pipeline 15, and pressurize the tank body 11 through the pressurization pipeline 16 to discharge the substances inside the tank body 11 outward.

[0070] As can be seen from the above technical solutions, the advantages and positive effects of the present invention are as follows:

[0071] The tank container of the present invention includes a tank body, a frame, a sewage suction pipeline, a sewage discharge pipeline and a vacuum pumping pipeline. By pumping vacuum into the tank body through the vacuum pumping pipeline, negative pressure is generated in the tank body, so that substances from the outside are transported into the tank body, or the substances in the tank body are discharged outward through the sewage discharge pipeline, thereby realizing the vacuum sewage suction and storage and transportation functions of the tank container. Moreover, this tank container can cooperate with general-purpose tank container transportation equipment, so that the storage and transportation functions of the tank container can be independent of each other, with relatively good flexibility.

[0072] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be construed broadly within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank container, characterized in that, it comprises: a tank body, on which a sewage suction port, a sewage discharge port and a vacuum pumping interface are provided, and the vacuum pumping interface is communicated with the gas phase space of the tank body; a frame, arranged outside the tank body and supporting the tank body; a sewage suction pipeline, connected and fixed to the frame or the tank body, the sewage suction pipeline having a sewage suction inlet end and a sewage suction outlet end, the sewage suction inlet end being used for communicating with the outside, and the sewage suction outlet end being communicated with the sewage suction port of the tank body so as to be able to suck substances from the outside into the tank body; a sewage discharge pipeline, connected and fixed to the frame or the tank body, the sewage discharge pipeline having an external interface end and a tank body interface end, the tank body interface end being communicated with the sewage discharge port of the tank body, and the external interface end being used for communicating with the outside so as to be able to discharge the substances in the tank body to the outside; a vacuum pumping pipeline, connected and fixed to the frame or the tank body, the vacuum pumping pipeline having a gas inlet end and a gas outlet end, the gas inlet end being used for communicating with the outside, and the gas outlet end being communicated with the vacuum pumping interface of the tank body so as to be able to pump vacuum in the tank body to generate negative pressure in the tank body and suck substances from the outside into the tank body; one end of the tank body deviates towards the frame, so that a receiving space is formed between the tank body and the other end of the frame, and the receiving space is used for receiving the sewage suction pipeline, the sewage discharge pipeline and the vacuum pumping pipeline; the sewage discharge pipeline is arranged at the bottom of the tank body and extends along the axial direction of the tank body, and the external interface end of the sewage discharge pipeline is located in the receiving space; along the transverse direction of the tank body, the vacuum pumping pipeline and the sewage suction pipeline are respectively located on two opposite sides of the transverse central axis of the tank body.

2. The tank container according to claim 1, characterized in that, there is a height difference between the sewage suction inlet end and the sewage suction outlet end, and the sewage suction inlet end is located below the sewage suction outlet end.

3. The tank container according to claim 2, characterized in that, the sewage suction pipeline comprises a vertical pipe section and a horizontal pipe section connected to the vertical pipe section, the horizontal pipe section extends along the axial direction of the tank body, the sewage suction outlet end is located at the free end of the horizontal pipe section, the vertical pipe section is located at the first end of the tank body, and the sewage suction inlet end is located at the free end of the vertical pipe section.

4. The tank container according to claim 1, characterized in that, the vacuum pumping pipeline comprises a first pipe section, a third pipe section and a second pipe section connecting the first pipe section and the third pipe section, the first pipe section is located in the receiving space, the second pipe section and the third pipe section are located at the top of the tank body, the gas inlet end is located at the free end of the first pipe section, and the gas outlet end is located at the free end of the third pipe section.

5. The tank container according to claim 1, characterized in that, an overcharge protection device is provided on the vacuum pumping pipeline, and the overcharge protection device is used for disconnecting the communication between the vacuum pumping pipeline and the inside of the tank body when the liquid in the tank body reaches the highest allowable filling liquid level.

6. The tank container according to claim 1, characterized in that, A pressure inlet is further provided on the tank body, and the pressure inlet is communicated with the gas phase space of the tank body; The tank container further includes a pressure pipeline, the pressure pipeline has a pressure inlet end and a pressure outlet end, the pressure outlet end is communicated with the pressure inlet, and the pressure inlet end is communicated with the outside to be able to pressurize the inside of the tank body.

7. The tank container according to claim 1, characterized in that an end manhole is provided on the tank body, and the end manhole and the sewage pipeline are respectively located at opposite ends of the tank body.

8. The tank container according to claim 1, characterized in that the tank container further includes: a safety valve, which is arranged on the top of the tank body and is communicated with the gas phase space inside the tank body, the safety valve is preset with a pressure value, and when the pressure inside the tank body reaches the pressure value, the safety valve opens; a walkway, which is arranged on the top of the tank body and extends along the axial direction of the tank body; a liquid level gauge, which is arranged on one side of the tank body and is communicated with the inside of the tank body; a baffle plate, which is fixed on the inner wall of the tank body.

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