CN220883107U - Tank heat-insulating foaming structure - Google Patents
Tank heat-insulating foaming structure Download PDFInfo
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- CN220883107U CN220883107U CN202322538030.5U CN202322538030U CN220883107U CN 220883107 U CN220883107 U CN 220883107U CN 202322538030 U CN202322538030 U CN 202322538030U CN 220883107 U CN220883107 U CN 220883107U
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- flat plate
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- 238000005187 foaming Methods 0.000 title claims abstract description 132
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 238000000748 compression moulding Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 239000002985 plastic film Substances 0.000 description 7
- 229920006255 plastic film Polymers 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000010412 perfusion Effects 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a tank heat-insulating foaming structure, which comprises a compression molding module for foaming and a clamping and fixing module for fixing the compression molding module; the pressing forming module comprises a flat plate connected with the tank, an arc plate arranged on the flat plate and a connecting plate used for connecting the flat plate and the arc plate, and a foaming space is formed between the arc plate and the tank; the clamping and fixing module comprises a fixing frame for fixing the flat plate, a pressing rod for fastening the fixing frame and a connecting piece for connecting the pressing rod with the tank; after the fixed frame is connected with the compression molding module, the fixed frame is fastened on the tank through the compression rod, and the compression rod is connected with the tank through the connecting piece; after the connection is completed, foaming materials are filled into the foaming space for foaming treatment.
Description
Technical Field
The utility model relates to the technical field of tank heat preservation, and is particularly suitable for a tank heat preservation foaming structure.
Background
Most of the tank types in the current tank industry have heat preservation requirements, and the heat preservation types have various: rock wool filling, PU plate laying and the like, and conventionally adopts rock wool filling and heat preservation for tank containers, and is applied to media insensitive to environmental temperature, wherein flaky rock wool heat preservation materials are wrapped on a cylinder, and the outer layer is wrapped by glass fiber reinforced plastic plates, so that the tank containers have a heat preservation effect when in box-type conventional steam heating; however, with respect to the heat preservation requirement, a good heat preservation effect cannot be achieved.
For the heat preservation of the tank with higher heat preservation requirement, a foaming heat preservation method can be adopted, but the foaming process is complicated, and foaming materials can jack up a foaming mold under severe reaction, so that the foaming mold is damaged, the foaming materials flow out of the foaming mold, and the tank cannot be well preserved.
Disclosure of Invention
The utility model aims to solve the problems and provides a tank heat-insulating foaming structure.
In order to achieve the above object, the present utility model provides a tank insulation foaming structure, comprising a compression molding module for foaming, and a clamping and fixing module for fixing the compression molding module;
The pressing forming module comprises a flat plate connected with the tank, an arc plate arranged on the flat plate and a connecting plate used for connecting the flat plate with the arc plate, wherein a foaming space is formed between the arc plate and the tank;
the clamping and fixing module comprises a fixing frame for fixing the flat plate, a pressing rod for fastening the fixing frame and a connecting piece for connecting the pressing rod with the tank;
After the fixed frame is connected with the compression molding module, the fixed frame is fastened on the tank through the compression rod, and the compression rod is connected with the tank through the connecting piece; after connection is completed, foaming materials are filled into the foaming space for foaming treatment.
Further specifically, fastening reinforcing ribs are provided on the fixing frame.
Further specifically, the fastening reinforcing ribs are at least two and are uniformly arranged on the flat plate.
Further specifically, the fixing frame comprises a plurality of fixing rods arranged on the flat plate, and the fixing rods are arranged around the periphery of the flat plate in an end-to-end connection mode.
Further specifically, eight fixing rods are arranged.
Further specifically, the pressing rods are arranged in a plurality, and the pressing rods are uniformly arranged on the fixed frame.
Further specifically, the connecting piece comprises a first plate connected with the pressing rod and a second plate connected with the first plate, and the second plate is connected with the tank.
Further specifically, a first bolt hole is formed in the compression rod, a second bolt hole is formed in the second plate, and the first bolt hole and the second bolt hole are connected through bolts.
Further specifically, connecting pieces are arranged at two ends of the pressing rod.
Further specifically, both ends of the fastening reinforcing rib are connected with the fixed frame.
According to the tank heat-insulating foaming structure, the foaming space is formed by arranging the compression molding module, the foaming material foams in the foaming space to form the heat-insulating layer, and the heat-insulating layer is consistent with the tank seal head in shape, so that the tank seal head is better insulated; the clamping and fixing module is arranged to press the compression molding module tightly and is connected with the tank frame, so that the foaming reaction in the foaming process is prevented from being too large, the compression molding module deforms, or the compression molding module is jacked up, and the foaming reaction cannot be performed well.
Drawings
Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, and it should be understood that the embodiments described below are only for explaining the present application, and do not limit the scope of the present application, wherein:
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of the main view body structure of the present utility model;
FIG. 3 is a schematic diagram of the foaming structure at the tank closure of the present utility model;
In the figure: 1. a flat plate; 2. an arc-shaped plate; 3. a connecting plate; 4. a fixed frame; 41. a fixed rod; 5. fastening the reinforcing ribs; 6. a pressing rod; 71. a first plate; 72. a second plate; 8. a tank frame; 9. a tank; 10. foaming space.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model become more apparent, the technical solutions in the embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings in the embodiments of the present utility model. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
It should be understood that the drawings are for illustrative purposes only.
The tank heat-insulating foaming structure comprises a compression molding module for foaming and a clamping and fixing module for fixing the compression molding module, and is connected with a sealing head of a tank 9 for foaming operation as shown in figures 1-3;
The compression molding module comprises a flat plate 1 connected with a tank 9, an arc plate 2 arranged on the flat plate 1 and a connecting plate 3 used for connecting the flat plate 1 and the arc plate 2, wherein a foaming space 10 is formed between the arc plate 2 and the tank 9;
The flat plate 1 is connected with the tank sealing head, the flat plate 1 is arranged according to the structure of frames at two ends of the tank and the shape of an outer wrapping plate, a connecting hole which is convenient for arranging the arc plate 2 is formed in the flat plate 1, the connecting hole is matched with the arc plate 2, and the arc plate 2 is convenient for arranging. When the arc plate 2 is arranged on the flat plate 1, the arc plate 2 is provided with a part which cannot be completely connected with the flat plate 1, a gap is reserved between the arc plate 2 and the flat plate 1, foaming operation cannot be carried out, and therefore the flat plate 1 is connected with the arc plate 2 by the connecting plate 3, and foaming is facilitated. After the flat plate 1, the arc plate 2 and the connecting plate 3 are connected, a sealed foaming space 10 is formed between the flat plate and the tank end socket, and foaming materials react in the foaming space 10 to form an insulating layer. The heat preservation forms the back closely laminating with jar case head, guarantees the heat preservation effect to jar case head, dull and stereotyped 1 with the setting of arc 2 adapts to the jar case 9 of different models for the heat preservation that forms also adapts to the jar case 9 of different models, guarantees the heat preservation effect to jar case head.
The clamping and fixing module comprises a fixing frame 4 for fixing the flat plate 1, a pressing rod 5 for fastening the fixing frame 4 and a connecting piece for connecting the pressing rod 5 with the tank 9;
The fixing frame 4 comprises a plurality of fixing rods which are arranged around the flat plate 1, the number of the fixing rods is further set according to the shape of the flat plate 1, and eight fixing rods are arranged around the periphery of the flat plate 1 in an end-to-end connection mode. The dead lever all with dull and stereotyped 1 is connected, and the optional paste of connected mode, welding or integrated into one piece set up, in this scheme, the dead lever welding is in dull and stereotyped 1 is gone up, supports dull and stereotyped 1's periphery. In order to prevent the flat plate 1 from being locally deformed due to the extrusion in the foaming process, fastening reinforcing ribs 5 are arranged on the flat plate 1 to strengthen the strength of the flat plate 1.
Because of can exothermic in foaming material reaction process, volume expansion can cause outside impact force to dull and stereotyped 1, if the compression molding module takes place plastic deformation, probably causes the leakage of foaming material to pollute paint, for further reinforcing compression molding module's intensity set up hold-down bar 6 on fixed frame 4, hold-down bar 6 sets up a plurality of according to fixed frame 4's size hold-down bar 6 parallel arrangement just all is connected with fixed frame 4, and the connected mode can select to paste, welding or integrated into one piece setting, in this scheme, hold-down bar 6 welds on the fixed frame 4, sets up hold-down bar 6 and can further strengthen compression molding module's intensity, effectively prevents at the in-process of foaming, compression molding module's deformation. The length of the pressing rod 6 is set to ensure that the pressing rod can be fixed with the frame of the tank 9 after being connected with a connecting piece.
The connecting piece comprises a first plate 71 connected with the pressing rod 6 and a second plate 72 connected with the first plate 71, the first plate 71 and the pressing rod 6 are welded together, the first plate 71 and the second plate 72 are welded together, and the tank heat-insulating foaming structure and the tank 9 are connected together through the second plate 72.
The tank heat-insulating foaming structure is hung on the tank 9 by using a crane, the pressing rod 6 is in contact with the tank frame 8, a first bolt hole is formed in the pressing rod 6, a second bolt hole is formed in the tank frame 8, a third bolt hole is formed in the second plate 72, and the bolts sequentially penetrate through the first bolt hole, the second bolt hole and the third bolt hole, so that the pressing rod 6, the tank frame 8 and the second plate 72 are connected, and the tank heat-insulating foaming structure is arranged on the tank 9.
The concrete installation steps of the tank heat-insulating foaming structure are as follows:
Connecting the arc-shaped plate 2 with the flat plate 1, and connecting the arc-shaped plate 2 with the flat plate 1 by the connecting plate 3, so that a closed foaming space 10 is formed among the flat plate 1, the arc-shaped plate 2, the connecting plate 3 and the tank 9; a plurality of fixing rods are arranged on the periphery of the flat plate 1, and the fixing rods are connected end to form a fixing frame 4 and connected to the flat plate 1 to support the flat plate 1; fastening reinforcing ribs 5 are arranged on the flat plate 1, so that the strength of the flat plate 1 is increased; a pressing rod 6 is connected to the fixed frame 4, a first plate 71 is connected to the pressing rod 6, a second plate 72 is connected to the first plate 71, and the tank heat-insulating foaming structure is installed; after the tank heat-insulating foaming structure is installed, the tank heat-insulating foaming structure is hung on the tank 9 by using a crane, and then the tank heat-insulating foaming structure is connected with the tank frame 8 through bolts and is pressed; after the connection is completed, foaming material is filled into the foaming space 10 for foaming treatment.
A tank heat preservation foaming method comprises the following steps:
S1, simply cleaning the seal heads at the front end and the rear end of the tank 9, then pasting tinfoil paper on the seal heads at the front end and the rear end of the tank 9, pasting the contact surfaces of the seal heads and the tinfoil paper by adopting sealant, and enabling the tinfoil paper to extend to the inner side of the collar as much as possible and be firmly pasted;
The tinfoil paper is not removed after foaming is finished, and can prevent high temperature and block condensed water, so as to protect foaming materials;
S2, a plastic film is respectively arranged on the outer surfaces of the two sealing heads, the plastic film wraps the sealing heads of the tank as much as possible, the tank heat-insulation foaming structure is lifted by using a crane, a release agent is coated in a foaming space 10 of the tank heat-insulation foaming structure, then the crane moves the tank heat-insulation foaming structure to the frames at the two ends respectively, and the tank heat-insulation foaming structure is connected with the tank frame 8 through bolts;
The plastic film and the release agent are arranged for the purpose of conveniently disassembling the tank heat-insulating foaming structure subsequently, and only one of the plastic film and the release agent can be arranged, but if only the plastic film is arranged, the plastic film is easy to damage in the foaming process, and the foaming material can flow out and adhere to the tank heat-insulating foaming structure to pollute the tank heat-insulating foaming structure, so that the plastic film needs to be replaced all the time, waste is caused, and the cost is high; if the release agent is only provided, the release agent at the upper part of the foaming space 10 will flow to the lower part when the release agent is not completely dried, the upper part will not be covered with the release agent, and good release of the upper part of the tank heat insulation foaming structure will not be performed, but if the release agent is completely dried, the tank heat insulation foaming structure will be mounted, the foaming material will still adhere to the tank heat insulation foaming structure, and the tank heat insulation foaming structure will not be conveniently released.
S3, a foaming material injection hole is formed in the position, deviating from the welding line, of the top of the collar, the size of the foaming material injection hole is the same as that of a material injection hole of a foaming machine, and the foaming machine moves to the foaming material injection hole to inject foaming material into the foaming space;
S4, calculating the time for injecting the foaming material according to the volume of the foaming space, the density of the heat-insulating layer formed by foaming and the pouring flow rate;
volume of foaming space: v Body ;
density of the heat-insulating layer: ρ;
Perfusion flow rate: v Quick speed ;
Time of foam injection: t is;
The weight of the foaming material is as follows: m;
Since m=v Body ρ, t=m/V, it can be derived that: t= (V Body *ρ)/v Quick speed ;
The perfusion flow rate was determined from room temperature, and the specific perfusion flow rate was as follows:
Room temperature < 0 ℃, v Quick speed = 1.9kg/s;
The room temperature is more than or equal to 0 ℃ and less than or equal to 30 ℃, v Quick speed = 2kg/s;
30 ℃ < room temperature, v Quick speed = 2.1kg/s;
For example: after the tank heat-insulating foaming structure is compressed by three-dimensional software, the volume V Body of the foaming space 10 is calculated to be 0.8m 3, the density rho of the heat-insulating layer is obtained to be 42kg/m 3, the total weight m of the required foaming material is 33.6kg, the filling flow rate V Quick speed is 2kg/s, and the required time t is calculated to be 16.8s;
The higher the density of the heat-insulating layer is, the better the heat-insulating effect is, the faster the flow rate of pouring into the foaming space 10 is, the lower the density of the heat-insulating layer is, the worse the heat-insulating effect is, and the slower the flow rate of pouring into the foaming space 10 is;
When the filling flow rate is too high, the foaming material at the bottom is unreacted, new foaming material is filled, the foaming material at the bottom is expanded outwards while reacting, and is continuously accumulated upwards, leaked outwards and pollutes the tank body, so that the fluidity of the filling raw material is affected, and when the filling flow rate is too high, the density is not well controlled; when the pouring flow rate is too slow, the foaming material at the bottom is reacted, the new foaming material is not poured yet, and the foaming effect is poor;
The perfusion flow rate at higher room temperature is slower than the perfusion flow rate at lower temperature;
the volume and the pouring density of the foaming space are determined, and the faster the pouring flow speed is, the shorter the time for pouring the foaming material is.
S5, injecting foaming materials into the tank heat-insulating foaming structure, wherein the foaming materials are a mixture of combined polyether and isocyanate, the ratio of the combined polyether to the isocyanate is 1:1.2, and the required amounts of the combined polyether and the isocyanate are obtained according to the amount of the foaming materials required to be filled;
S6, standing and foaming for 90 minutes at the room temperature of more than 20 ℃; standing and foaming for 120 minutes at room temperature of less than 20 ℃; after foaming is completed, the tank heat-insulating foaming structure is disassembled;
S7, checking the quality and appearance molding effect of the surface of the heat-insulating layer, ensuring that the heat-insulating layer is free from damage or flaws, and ensuring the heat-insulating effect on the tank;
s8, installing a glass fiber reinforced plastic end socket outer wrapping plate on the heat preservation layer, wherein the surface of the outer wrapping plate is defect-free, and after line drawing and plate cutting, the periphery is required to be flat and free of flash burrs, and the gaps among the periphery, the frames at the two ends and the outer wrapping support are uniform;
S9, sequentially drilling rivet holes from the center of the straight edge of the outer wrapping plate to the edge, requiring the outer wrapping plate to have no wave wrinkles, drilling the rivet holes to fix the outer wrapping plate and the heat insulation layer on the tank, preventing the outer wrapping plate from falling off during transportation, damaging the heat insulation layer, and affecting the heat insulation effect on the tank seal head;
S10, sealing glue is selected for gluing, the outer wrapping plate is connected with the tank seal head, when only rivets are arranged, the outer wrapping plate cannot completely cover the heat insulation layer, the heat insulation layer is still exposed and is easy to damage, and therefore the sealing glue is arranged to enable the outer wrapping plate to fully cover the heat insulation layer, and damage to the heat insulation layer is prevented.
According to the tank heat-insulating foaming structure, the foaming space 10 is formed by arranging the compression molding module, the foaming material foams in the foaming space 10 to form the heat-insulating layer, and the heat-insulating layer is consistent with the shape of the tank sealing head, so that the tank sealing head is better insulated; the clamping and fixing module is arranged to press the compression molding module and is connected with the tank frame 8, so that the excessive foaming reaction in the foaming process is prevented, the compression molding module deforms, or the compression molding module is jacked up, and the foaming reaction cannot be performed well; according to tank insulation foaming structure to the foaming of tank case head, compare in prior art, the step is comparatively simple, and can reach better effect, and the heat preservation that forms can satisfy the demand.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (10)
1. The utility model provides a jar case heat preservation foaming structure which characterized in that: the device comprises a compression molding module for foaming and a clamping and fixing module for fixing the compression molding module;
The pressing forming module comprises a flat plate (1) connected with the tank (9), an arc-shaped plate (2) arranged on the flat plate (1) and a connecting plate (3) used for connecting the flat plate (1) and the arc-shaped plate (2), wherein a foaming space (10) is formed between the arc-shaped plate (2) and the tank (9);
The clamping and fixing module comprises a fixing frame (4) for fixing the flat plate (1), a pressing rod (6) for fastening the fixing frame (4) and a connecting piece for connecting the pressing rod (6) with the tank (9);
After the fixed frame (4) is connected with the compression molding module, the fixed frame (4) is fastened on the tank (9) through the compression rod (6), and the compression rod (6) is connected with the tank (9) through a connecting piece; after the connection is completed, foaming material is filled into the foaming space (10) for foaming treatment.
2. The tank heat preservation foaming structure according to claim 1, wherein: fastening reinforcing ribs (5) are arranged on the flat plate (1).
3. The tank heat preservation foaming structure according to claim 2, wherein: the fastening reinforcing ribs (5) are at least two and are uniformly arranged on the flat plate (1).
4. The tank heat preservation foaming structure according to claim 1, wherein: the fixing frame (4) comprises a plurality of fixing rods arranged on the flat plate (1), and the fixing rods are arranged around the periphery of the flat plate (1) in an end-to-end connection mode.
5. The tank heat preservation foaming structure according to claim 4, wherein: eight fixing rods are arranged.
6. The tank heat preservation foaming structure according to claim 1, wherein: the compressing rods (6) are arranged in a plurality, and the compressing rods (6) are uniformly arranged on the fixed frame (4).
7. The tank heat preservation foaming structure according to claim 1, wherein: the connecting piece comprises a first plate (71) connected with the pressing rod (6) and a second plate (72) connected with the first plate (71), and the second plate (72) is connected with the tank (9).
8. The tank heat preservation foaming structure according to claim 7, wherein: a first bolt hole is formed in the compression rod (6), a second bolt hole is formed in the second plate (72), and the first bolt hole and the second bolt hole are connected through bolts.
9. The tank heat preservation foaming structure of claim 8, wherein: both ends of the pressing rod (6) are provided with connecting pieces.
10. A tank insulating foam structure according to claim 3, characterized in that: both ends of the fastening reinforcing ribs (5) are connected with the fixed frame (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322538030.5U CN220883107U (en) | 2023-09-18 | 2023-09-18 | Tank heat-insulating foaming structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322538030.5U CN220883107U (en) | 2023-09-18 | 2023-09-18 | Tank heat-insulating foaming structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220883107U true CN220883107U (en) | 2024-05-03 |
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ID=90873298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322538030.5U Active CN220883107U (en) | 2023-09-18 | 2023-09-18 | Tank heat-insulating foaming structure |
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| Country | Link |
|---|---|
| CN (1) | CN220883107U (en) |
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2023
- 2023-09-18 CN CN202322538030.5U patent/CN220883107U/en active Active
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