Liquid tank body structure

Abstract

The utility model discloses a liquid tank body structure which comprises a liquid tank body, a plurality of second swash plates are coaxially and fixedly connected to the inner circumference of a vehicle head section, a plurality of first swash plates are coaxially and fixedly connected to the inner circumference of a vehicle tail section, and a cleaning ring assembly is fixedly connected to the position, behind the first swash plates, in the vehicle tail section in a combined mode. And meanwhile, the cleaning ring assembly is also combined and fixedly connected to the position, at the rear part of the swash plate II, in the vehicle head section. The cleaning device has the beneficial effects that the annular fixing ring of the cleaning ring assembly is fixedly connected with the whole peripheries of the rear parts of the first swash plate and the second swash plate, so that the rear peripheral edges of the first swash plate and the second swash plate can be shielded, sealed and isolated by means of the annular fixing ring; and then the rear peripheral edges of the first swash plate and the second swash plate are prevented from being in direct contact with the medium in a manner that the annular fixing ring is in contact with the medium, and the situation that the rear peripheral edges of the first swash plate and the second swash plate are not easy to clean after the medium remains is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of liquid tank body auxiliary assembly, concretely relates to a liquid tank body structure. BACKGROUND

[0002] The liquid tank truck is a vehicle for transporting liquid materials, and the tank body is generally made of carbon steel plate, and can also be made of glass fiber reinforced plastic, stainless steel, plastic and other materials. The liquid tank truck is widely used, for example, it can be used for transporting dangerous chemicals, fuel, milk and other liquid substances. After transporting a certain medium and arriving at the unloading site, the tank body will have some residual medium on the inner wall. If the vehicle transports the same medium next time, the tank body does not need to be cleaned in general. However, if the vehicle transports a different medium next time, the tank body needs to be cleaned to avoid pollution of the residual medium.

[0003] However, when the current liquid tank body is designed, the inner part is cleaned. Since the circumferential ring of the wave breaker is fixed to the inner circumference of the tank body by full-circle welding, and the wave breaker is usually designed in an arc shape to buffer the liquid, the medium is easy to remain at the weld position and difficult to clean, so the medium is easy to remain, which causes the residual medium in the tank body to easily deteriorate and pollute the medium transported next time. UTILITY MODEL CONTENTS

[0004] The utility model discloses a liquid tank body structure, which can shield and seal the rear outer peripheral edge position of the wave breaker one and the wave breaker two by means of the annular fixing ring, and prevent the rear outer peripheral edge of the wave breaker one and the wave breaker two from directly contacting the medium by the annular fixing ring contacting the medium.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a liquid tank body structure, which comprises a liquid tank body, the liquid tank body is divided into two sections and is a vehicle head section and a vehicle tail section respectively, a plurality of wave breaker two is fixedly connected with the inner circumferential ring of the vehicle head section coaxially, a plurality of wave breaker one is fixedly connected with the inner circumferential ring of the vehicle tail section coaxially.

[0007] The wave breaker one and the wave breaker two are concave panels concave from the vehicle head section to the vehicle tail section direction, and the vehicle tail section is combined and fixedly connected with a cleaning ring assembly at the position of the rear part of the wave breaker one, and the vehicle head section is also combined and fixedly connected with the cleaning ring assembly at the position of the rear part of the wave breaker two.

[0008] As preferred, the middle side of the first and second wave breakers are provided with a pipe passing hole for passing through a heating pipe, and the lowermost position of the first and second wave breakers are provided with a liquid passing opening for smoothly flowing liquid medium.

[0009] As preferred, the top of the liquid tank body is provided with a manhole cover for maintenance on the side of the first and second wave breakers, and the top of the liquid tank body is provided with a breather valve on the side of the manhole cover.

[0010] As preferred, the top of the liquid tank body is provided with a liquid accumulation box for temporarily storing liquid medium overflowed through the breather valve on the periphery of the manhole cover and the breather valve, and the top periphery of the liquid accumulation box is outwardly flanged.

[0011] As preferred, the front and rear sections of the liquid tank body are externally provided with a positioning reinforcing ring, and the butt joint of the positioning reinforcing ring is located at the top and is reinforced by adding a C-shaped reinforcing member.

[0012] As preferred, the second wave breaker is provided with an inspection hole on the side of the pipe passing hole.

[0013] As preferred, the outer diameter of the first wave breaker is 1900mm, and the outer diameter of the second wave breaker is 2050mm.

[0014] As preferred, the cleaning ring assembly is specifically that the rear periphery of the first and second wave breakers is integrally and fixedly provided with a ring-shaped fixing ring for shielding and sealing the rear periphery of the first and second wave breakers, the lower part of the ring-shaped fixing ring is provided with a liquid passing gap corresponding to the front and rear of the liquid passing opening, and the break of the ring-shaped fixing ring on both sides of the liquid passing gap is shielded and fixedly provided with a blocking plate for sealing the break.

[0015] As preferred, the cross section of the ring-shaped fixing ring is in the shape of an L-shaped angle steel, the two parts of the ring-shaped fixing ring are an edge connecting part and a back connecting part, the edge connecting part and the back connecting part correspond to the two edge parts of the L-shaped ring-shaped fixing ring, the outer end surface of the edge connecting part and the outer end surface of the back connecting part are an edge contact surface and a back contact surface, the edge contact surface is fixedly connected with the corresponding position of the inner wall of the liquid tank body, the back contact surface is an arc surface capable of seamlessly abutting the corresponding contact position of the first or second wave breaker, and the edge contact surface and the back contact surface are integrally and fixedly connected by seamlessly abutting the corresponding contact position.

[0016] Preferably, the blocking plate is fixed to the annular fixing ring at the breakage position on both sides of the liquid passing gap by full welding, and the edge contact surface and the back contact surface are seamlessly attached to the corresponding contact position by full welding.

[0017] In the actual use of the liquid tank body, the rear part of the first wave breaker is combined and fixed with the cleaning ring assembly, and the rear part of the second wave breaker is also combined and fixed with the cleaning ring assembly. The annular fixing ring of the cleaning ring assembly is fixed to the rear part of the first wave breaker and the second wave breaker, respectively. The annular fixing ring can shield and isolate the rear part of the first wave breaker and the second wave breaker. The annular fixing ring can prevent the rear part of the first wave breaker and the second wave breaker from being in direct contact with the medium, and the rear part of the first wave breaker and the second wave breaker can be easily cleaned. The cross-section of the annular fixing ring is in the shape of an L-shaped angle steel. The edge connecting part and the back connecting part correspond to the two sides of the L-shaped annular fixing ring, respectively. The outer end surface of the edge connecting part and the outer end surface of the back connecting part are the edge contact surface and the back contact surface, respectively. The edge contact surface is fixed to the corresponding position of the inner wall of the liquid tank body, and the back contact surface is an arc surface that can seamlessly contact the corresponding position of the first wave breaker or the second wave breaker. The edge contact surface and the back contact surface are fixed by whole-circle welding. The rear part of the first wave breaker or the second wave breaker can be stably shielded, isolated, and contacted. The shielded and isolated position of the rear part of the first wave breaker or the second wave breaker is simple to implement. The cleaning ring assembly can easily clean the rear part of the first wave breaker and the second wave breaker. The lower part of the annular fixing ring is provided with a liquid passing gap corresponding to the front and rear of the liquid passing opening. The annular fixing ring is sealed by welding the blocking plate on both sides of the liquid passing gap. The medium cannot enter the annular fixing ring from the breakage position on both sides of the liquid passing gap, so that the cleaning ring body can be smoothly matched with the first wave breaker and the second wave breaker.

[0018] The beneficial effects are as follows: 1. The utility model is combined with a cleaning ring assembly fixedly connected to the rear position of the wave-breaking plate 1 inside the rear section of the vehicle, and is also combined with a cleaning ring assembly fixedly connected to the rear position of the wave-breaking plate 2 inside the front section, so that the annular fixing ring of the cleaning ring assembly is respectively fixedly connected to the rear outer peripheral rings of the wave-breaking plate 1 and the wave-breaking plate 2 in a whole circle, so that the annular fixing ring can be used to shield and seal the rear outer peripheral edge positions of the wave-breaking plate 1 and the wave-breaking plate 2, and then the annular fixing ring is in contact with the medium to prevent the rear outer peripheral edges of the wave-breaking plate 1 and the wave-breaking plate 2 from direct contact with the medium, thereby preventing the rear outer peripheral edges of the wave-breaking plate 1 and the wave-breaking plate 2 from being difficult to clean after residual medium is left on the rear peripheral edges of the wave-breaking plate 1 and the wave-breaking plate 2;

[0019] 2. The cross-sectional shape of the annular fixing ring is in the style of an L-shaped angle steel, and the edge connection part and the back connection part of the annular fixing ring respectively correspond to the two sides of the annular fixing ring of the L-shaped style, and the outer end surface of the edge connection part and the outer end surface of the back connection part are respectively the edge contact surface and the back contact surface, and the edge contact surface is fit and fixedly connected to the corresponding position of the inner wall of the tank, and the back contact surface is an arc surface that can seamlessly fit with the corresponding contact position of the wave-breaking plate 1 or the wave-breaking plate 2. Then, by welding and fixing the edge contact surface and the back contact surface in a whole circle, stable shielding, sealing and isolation of the rear peripheral edge position of the wave-breaking plate 1 or the wave-breaking plate 2 can be achieved. The shielding, sealing and isolation method for the rear peripheral edge position of the wave-breaking plate 1 or the wave-breaking plate 2 is simple and easy to achieve, and it is convenient to use the cleaning ring assembly to achieve the effect of easy cleaning of the rear peripheral edge position of the wave-breaking plate 1 and the wave-breaking plate 2;

[0020] 3. The lower part of the annular fixing ring is provided with a liquid-passing notch corresponding to the front and rear liquid-passing openings. At the same time, the fractures of the annular fixing ring on both sides of the liquid-passing notch are sealed by welding and installing sealing plates, thereby ensuring that the medium will not enter the interior of the annular fixing ring from the fractures of the annular fixing ring on both sides of the liquid-passing notch, thereby ensuring that the cleaning ring body can be smoothly matched with the wave-breaking plate 1 and the wave-breaking plate 2 for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the interior of the utility model from the front;

[0023] Figure 2 This is a schematic diagram of the interior of the utility model from a top view;

[0024] Figure 3 is the overall front external schematic diagram of the present application;

[0025] Figure 4 is the A-A sectional schematic diagram of the present application Figure 1 ;

[0026] Figure 5 is the B-B sectional schematic diagram of the present application Figure 1 ;

[0027] Figure 6 is the overall schematic diagram of the first wave shield of the present application Figure 1 ;

[0028] Figure 7 is the sectional schematic diagram of the present application Figure 6 ;

[0029] Figure 8 is the overall schematic diagram of the second wave shield of the present application Figure 1 ;

[0030] Figure 9 is the sectional schematic diagram of the present application Figure 8 .

[0031] The sign explanation of the drawing is as follows:

[0032] 1, the first wave shield; 2, the liquid tank body; 201, the tail section; 202, the head section; 203, the liquid accumulation box; 204, the breathing valve; 205, the manhole cover; 206, the lifting lug; 207, the C-shaped reinforcing part; 208, the positioning reinforcing ring; 3, the second wave shield; 4, the cleaning ring assembly; 401, the back connecting part; 402, the annular fixing ring; 403, the edge connecting part; 404, the edge contact surface; 405, the liquid passing gap; 406, the back contact surface; 407, the plugging plate; 5, the pipe passing hole; 6, the liquid passing opening; 7, the inspection hole. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0034] Referring to Figures 1-9As shown, the utility model provides a kind of liquid tank body structure, including liquid tank body 2, liquid tank body 2 is divided into two sections and is respectively car head section 202 and tail section 201, the inside perimeter of car head section 202 is coaxially fixed with several wave-breaker two 3, the inside perimeter of tail section 201 is coaxially fixed with several wave-breaker one 1, wave-breaker one 1 and wave-breaker two 3 are all concave panel that recess from car head section 202 to tail section 201 direction, and the inside of tail section 201 is combined and fixed with cleaning ring assembly 4 at the position of rear portion of wave-breaker one 1, while the inside of car head section 202 is also combined and fixed with cleaning ring assembly 4 at the position of rear portion of wave-breaker two 3, specifically, cleaning ring assembly 4 is specifically, the rear portion of wave-breaker one 1 and wave-breaker two 3 is all fixed with annular fixed ring 402, to shield and seal the rear portion of wave-breaker one 1 and wave-breaker two 3 with the aid of annular fixed ring 402, the lower part of annular fixed ring 402 is all provided with liquid passing gap 405 compared with liquid passing opening 6, and the break of annular fixed ring 402 is all shielded and fixed with plugging plate 407 for sealing the break, the purpose of this arrangement is, the rear portion of wave-breaker one 1 and wave-breaker two 3 is shielded and sealed with the aid of annular fixed ring 402 by the mode that annular fixed ring 402 is fixed with the rear portion of wave-breaker one 1 and wave-breaker two 3, then the rear portion of wave-breaker one 1 and wave-breaker two 3 is prevented from directly contacting with medium by the mode that annular fixed ring 402 contacts with medium, while the medium is also ensured not to enter the inside of annular fixed ring 402 from the break of annular fixed ring 402 at the position of both sides of liquid passing gap 405 with the aid of plugging plate 407.

[0035] Referring to Figures 1-5 As shown, wave-breaker one 1, wave-breaker two 3, liquid tank body 2 and cleaning ring assembly 4 are optimized as follows, specifically to wave-breaker one 1, wave-breaker two 3 and liquid tank body 2, the middle one side of wave-breaker one 1 and wave-breaker two 3 is all provided with pass-through hole 5 for passing heating pipeline, the lowermost position of wave-breaker one 1 and wave-breaker two 3 is all provided with liquid passing opening 6 for smoothly flowing liquid medium, so that heating pipeline can pass through pass-through hole 5 and be smoothly arranged in liquid tank body 2, and liquid medium can flow smoothly in liquid tank body 2 through liquid passing opening. Optionally, manhole cover 205 for entering tank body for maintenance is combined and fixed at the position above the side of wave-breaker one 1 and wave-breaker two 3 on the top of liquid tank body 2, and breather valve 204 is combined and installed at the position beside manhole cover 205 on the top of liquid tank body 2, so that liquid tank body 2 can be conveniently cleaned and maintained subsequently by setting manhole cover 205, and the pressure in liquid tank body 2 can be conveniently stabilized by setting breather valve 204.

[0036] Referring toFigures 1-5 As shown, further, the top of the liquid tank body 2 is fixedly connected with a liquid accumulation box 203 for temporarily storing the liquid medium overflowed through the breathing valve 204 at the position outside the periphery of the manhole cover 205 and the breathing valve 204, and the top periphery of the liquid accumulation box 203 is outwardly turned up, so that the liquid medium overflowed and evaporated can be collected through the liquid accumulation box 203, and the liquid medium is prevented from flowing around and dirtying the surface of the liquid tank body 2. Further, the head section 202 and the tail section 201 of the liquid tank body 2 are externally welded with a positioning reinforcing ring 208, the butt joint of the positioning reinforcing ring 208 is located at the top and is reinforced by additionally arranging a C-shaped reinforcing member 207, so that the whole tank body of the liquid tank body 2 is reinforced by the positioning reinforcing ring 208. Meanwhile, the wave breaker 3 is provided with an inspection hole 7 beside the pipe hole 5, so that the different positions in the liquid tank body 2 can be viewed by arranging the inspection hole 7. The outer diameter of the wave breaker 1 is 1900 mm, and the outer diameter of the wave breaker 3 is 2050 mm, so that the design specifications of the wave breaker 1 and the wave breaker 3 can be adapted to the use requirements of the tail section 201 and the head section 202, respectively.

[0037] Referring to Figures 1-9As shown, and specific to the cleaning ring assembly 4, the cross-sectional shape of the annular fixing ring 402 is in the shape of an L-shaped steel, and the two parts of the annular fixing ring 402 are respectively the edge connecting part 403 and the back connecting part 401, while the edge connecting part 403 and the back connecting part 401 correspond to the two edge parts of the L-shaped annular fixing ring 402 respectively. The outer end surface of the edge connecting part 403 and the outer end surface of the back connecting part 401 are respectively the edge contact surface 404 and the back contact surface 406, and the edge contact surface 404 is attached and fixed to the corresponding position of the inner wall of the liquid tank body 2. The back contact surface 406 is an arc surface that can seamlessly fit the contact position of the corresponding wave board one 1 or wave board two 3, and the edge contact surface 404 and the back contact surface 406 are both fixed by seamlessly fitting in the corresponding contact position. In this way, by means of the edge contact surface 404 and the back contact surface 406 being seamlessly fitted in the corresponding wave board one 1 or wave board two 3 rear part and then being fixed by whole circle welding, the rear outer peripheral edge position of the wave board one 1 or wave board two 3 can be stably shielded, sealed and isolated. The shielding, sealing and isolating method for the rear outer peripheral edge position of the wave board one 1 or wave board two 3 is simple and easy to implement, and the cleaning ring assembly 4 can be used to realize the easy-to-clean effect of the rear outer peripheral edge position of the wave board one 1 and the wave board two 3. At the same time, the sealing plate 407 and the annular fixing ring 402 are fixed by full welding at the break of the two sides of the liquid passing gap 405. The edge contact surface 404 and the back contact surface 406 are fixed by full welding after being seamlessly fitted in the corresponding contact position. In this way, the sealing plate 407 can be stably and firmly sealed at the break of the annular fixing ring 402 by full welding, and the edge contact surface 404 and the back contact surface 406 of the annular fixing ring 402 can be stably and firmly combined with the corresponding contact position by full welding.

[0038] With the above structure, specifically in the actual use of the liquid tank body 2, since the rear position of the anti-wave plate 1 inside the rear section 201 is combined and fixedly connected with the cleaning ring assembly 4, and the rear position of the anti-wave plate 2 3 inside the front section 202 is also combined and fixedly connected with the cleaning ring assembly 4, the annular fixing ring 402 of the cleaning ring assembly 4 is respectively fixedly connected with the rear outer peripheral ring of the anti-wave plate 1 and the anti-wave plate 2 3. The annular fixing ring 402 can be used to shield and seal the rear outer peripheral edge position of the anti-wave plate 1 and the anti-wave plate 2 3, and then the annular fixing ring 402 is used to fix the cleaning ring assembly 4 to the rear outer peripheral edge position of the anti-wave plate 1 and the anti-wave plate 2 3. The contact with the medium prevents the rear peripheral edges of the wave-breaking plates 1 and 2 3 from directly contacting the medium, and prevents the residual medium from being difficult to clean after the rear peripheral edges of the wave-breaking plates 1 and 2 3 are formed. Since the cross-sectional shape of the annular fixing ring 402 is an L-shaped angle steel style, and the edge connection part 403 and the back connection part 401 of the annular fixing ring 402 respectively correspond to the two sides of the L-shaped annular fixing ring 402, the outer end surface of the edge connection part 403 and the outer end surface of the back connection part 401 are the edge contact surface 404 and the back contact surface 406 respectively. The edge contact surface 404 is fixedly connected to the corresponding position of the inner wall of the liquid tank body 2, and the back contact surface 406 is an arc surface that can be seamlessly fitted with the corresponding contact position of the wave-breaking plate 1 or the wave-breaking plate 2 3. Then, by welding the edge contact surface 404 and the back contact surface 406 in a whole circle, the rear peripheral edge position of the wave-breaking plate 1 or the wave-breaking plate 2 3 can be stably shielded and sealed. The shielding and sealing isolation method for the rear peripheral edge position of the wave-breaking plate 1 or the wave-breaking plate 2 3 is simple and easy to implement, and it is convenient to use the cleaning ring assembly 4 to realize the shielding and sealing isolation of the wave-breaking plate 1 and the wave-breaking plate 2 The rear peripheral edge of plate 2 3 is easy to clean, and since the lower part of the annular fixing ring 402 is provided with a liquid-passing notch 405 which is aligned with the front and rear liquid-passing opening 6, the fractures of the annular fixing ring 402 on both sides of the liquid-passing notch 405 are sealed by welding and adding sealing plates 407, thereby ensuring that the medium will not enter the interior of the annular fixing ring 402 from the fractures of the annular fixing ring 402 on both sides of the liquid-passing notch 405, thereby ensuring that the cleaning ring assembly 4 can be smoothly matched with the wave-breaking plate 1 and the wave-breaking plate 2 3 for use.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A liquid tank body structure comprising a liquid tank body (2), characterized by: The liquid tank body (2) is divided into two sections, namely the head section (202) and the tail section (201), the inner periphery of the head section (202) is coaxially fixed with a plurality of wavebreakers II (3), and the inner periphery of the tail section (201) is coaxially fixed with a plurality of wavebreakers I (1); The wavebreakers I (1) and the wavebreakers II (3) are concave panels recessed from the head section (202) to the tail section (201), and the tail section (201) is combined and fixed with a cleaning ring assembly (4) at a position behind the wavebreakers I (1), and the head section (202) is also combined and fixed with the cleaning ring assembly (4) at a position behind the wavebreakers II (3).

2. The liquid tank structure according to claim 1, characterized by: The wavebreakers I (1) and the wavebreakers II (3) are each provided with a pipe passing hole (5) at one side of the middle part for passing a heating pipe, and each is provided with a liquid passing opening (6) at the lowest position for smoothly flowing liquid medium.

3. The liquid tank structure according to claim 2, characterized by: The top of the liquid tank body (2) is combined and fixed with a manhole cover (205) above the wavebreakers I (1) and the wavebreakers II (3) on both sides, and is combined and installed with a breather valve (204) at a position beside the manhole cover (205).

4. The liquid tank structure according to claim 3, wherein: The top of the liquid tank body (2) is combined and installed with an effusion box (203) at a position outside the periphery of the manhole cover (205) and the breather valve (204) for temporarily storing effusion liquid medium volatilized through the breather valve (204), and the top periphery of the effusion box (203) is outwardly flanged.

5. The liquid tank structure according to claim 2, wherein: The head section (202) and the tail section (201) of the liquid tank body (2) are each welded with a positioning reinforcing ring (208) on the outside, the butt joint position of the positioning reinforcing ring (208) is at the top and is reinforced by additionally installing a C-shaped reinforcing member (207).

6. The liquid tank structure according to claim 2, wherein: The wavebreakers II (3) are each provided with an access hole (7) beside the pipe passing hole (5).

7. The liquid tank structure according to claim 2, wherein: The outer diameter specification of the wavebreakers I (1) is 1900mm, and the outer diameter specification of the wavebreakers II (3) is 2050mm.

8. The liquid tank structure according to any one of claims 2 to 7, characterized in that: The cleaning ring assembly (4) is specifically that the rear periphery of the wavebreakers I (1) and the wavebreakers II (3) is each fixed with an annular fixing ring (402) for shielding and sealing the rear periphery edge of the wavebreakers I (1) and the wavebreakers II (3), the lower part of the annular fixing ring (402) is provided with a liquid passing gap (405) opposite to the liquid passing opening (6) in front and behind, and the gap on both sides of the liquid passing gap (405) is shielded and fixed with a plugging plate (407) for sealing the gap.

9. The liquid tank structure according to claim 8, wherein: The section shape of the annular fixing ring (402) is in the form of L-shaped angle steel, two parts of the annular fixing ring (402) are respectively edge connecting part (403) and back connecting part (401), meanwhile the edge connecting part (403) and the back connecting part (401) correspond to two edge parts of the annular fixing ring (402) in L-shaped form respectively, the outer end surface of the edge connecting part (403) and the outer end surface of the back connecting part (401) are respectively edge contact surface (404) and back contact surface (406), and the edge contact surface (404) is attached and fixed with the corresponding position of the inner wall of the liquid tank body (2), the back contact surface (406) is an arc surface which can be seamlessly attached with the contact position of the corresponding wave board one (1) or the wave board two (3), meanwhile the edge contact surface (404) and the back contact surface (406) are all fixed by full welding after being seamlessly attached in the corresponding contact position.

10. The liquid tank structure according to claim 9, wherein: The plugging plate (407) and the annular fixing ring (402) are fixed by full welding at the break of the position on both sides of the liquid passing gap (405), and the fixed way of the edge contact surface (404) and the back contact surface (406) after being seamlessly attached in the corresponding contact position is full welding.

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