CN112665230A - Novel liquid storage device for compressor and preparation process thereof - Google Patents
Novel liquid storage device for compressor and preparation process thereof Download PDFInfo
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- CN112665230A CN112665230A CN202011517730.0A CN202011517730A CN112665230A CN 112665230 A CN112665230 A CN 112665230A CN 202011517730 A CN202011517730 A CN 202011517730A CN 112665230 A CN112665230 A CN 112665230A
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Abstract
The invention discloses a novel liquid accumulator for a compressor and a preparation process thereof, relates to refrigeration accessories, and aims to solve the problem that the service life of a compressor is influenced because unvaporized refrigerant flows to the compressor through an air outlet pipe because the unvaporized refrigerant is sucked and pressed by air flow flowing outwards at the air outlet pipe, and the technical scheme is as follows: including upper cover and low head, be equipped with the jar body that is the tubular structure between upper cover and the low head, fixedly connected with intake pipe and outlet duct on the upper cover, be equipped with the flexion that is located the jar body on intake pipe and the outlet duct, adjacent flexion is kept away from the one end that is located outside the upper cover and is set up dorsad each other, and the upper end of jar body is located to the upper cover, is equipped with seal structure between the upper cover and the jar body. The outlet at one end of the tank body, which is provided with the air outlet pipe and the air inlet pipe, is arranged oppositely, so that the refrigerating fluid entering the tank body through the air inlet pipe can be stored in the tank body for a short time and is fully vaporized.
Description
Technical Field
The invention relates to a refrigeration accessory, in particular to a novel liquid storage device for a compressor and a preparation process thereof.
Background
The accumulator is installed in the air conditioner evaporator and the air suction pipe of the compressor and is a protecting part for preventing liquid refrigerant from flowing into the compressor to produce liquid impact.
During the operation of the air conditioning system, the refrigerant can not be completely vaporized; namely, the liquid refrigerant can enter the liquid storage device from the refrigerant coming out of the evaporator, the liquid refrigerant which is not vaporized can directly fall on the cylinder bottom of the liquid storage device because the refrigerant is heavier than gas, and the vaporized refrigerant enters the compressor from the outlet of the liquid storage device, so that the liquid impact caused by the liquid refrigerant sucked by the compressor is prevented.
However, the air inlet pipe and the air outlet pipe of the liquid storage device are not properly arranged, when the unvaporized refrigerating fluid is input into the liquid storage device through the air inlet pipe under the action of air flow and air pressure, the unvaporized refrigerant is sucked and pressed by the air flow flowing outwards at the air outlet pipe, so that the unvaporized refrigerant flows to the compressor through the air outlet pipe, and the service life of the compressor is influenced.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a novel liquid storage device for a compressor and a preparation process thereof.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a novel reservoir for compressor, includes upper cover and low head, be equipped with the jar body that is tubular structure between upper cover and the low head, fixedly connected with intake pipe and outlet duct on the upper cover, be equipped with the flexion that is located the jar body on intake pipe and the outlet duct, it is adjacent the flexion is kept away from the one end that is located outside the upper cover and is set up dorsad each other, the upper end of the jar body is located to the upper cover, be equipped with seal structure between the upper cover and the jar body.
Through adopting above-mentioned technical scheme, through the upper cover, holistic reservoir is constituteed with jar body to the low head, and through seal structure's setting, can strengthen the gas tightness between the upper cover and the jar body, and intake pipe and outlet duct are located jar internal one end and form the flexion, make when the refrigerant fluid through the evaporimeter lets in to the reservoir, the route is longer, it makes the refrigerant fluid fully vaporize to provide sufficient time, and the end of flexion sets up dorsad on intake pipe and the outlet duct, avoid having the refrigerant fluid of tiny particle drop of water directly to let in the outlet duct under the atmospheric pressure effect, thereby the buffering effect of reservoir has been improved, effectively protect the life of compressor.
The invention is further configured to: the bent portion is U-shaped, one end of the bent portion, which is located in the tank body, faces the upper end enclosure, straight pipe portions adjacent to the bent portion are arranged on the air inlet pipe and the air outlet pipe, and an included angle of 90-120 degrees is formed between each straight pipe portion and one end of the bent portion.
By adopting the technical scheme, the refrigerating fluid flowing through the air inlet pipe or the air outlet pipe can play a role in buffering through the included angle formed between the straight pipe part and the bent part.
The invention is further configured to: the bent parts located in the air inlet pipe are arranged in a staggered mode and bypass the bent parts located in the air outlet pipe.
Through adopting above-mentioned technical scheme, the flexion on intake pipe and the outlet duct can crisscross the setting each other, can reduce intake pipe and outlet duct and occupy the internal space size of jar, reduces the holistic volume of reservoir.
The invention is further configured to: the sealing structure comprises an annular convex edge positioned on the inner peripheral wall of the upper end enclosure, and an annular groove used for accommodating the annular convex edge is formed in the outer peripheral wall of the tank body.
Through adopting above-mentioned technical scheme, through the setting of cyclic annular bead and annular for the preliminary joint is realized through the mode of joint to the upper cover and jar body, the operation of the people's equipment of being convenient for, and the structure of joint has good area of contact, can improve the leakproofness of upper cover and jar body junction.
The invention is further configured to: the longitudinal section of the annular convex edge is triangular, and the right-angle side of the annular convex edge is arranged towards the direction of the inner concave part of the upper end enclosure.
Through adopting above-mentioned technical scheme, through adopting the triangle-shaped cross-section, when last head installation, can play the guide effect, and inlay to the annular in through its right-angle side, realize being connected of upper head and jar body.
The invention is further configured to: the top end of the tank body is bonded with a rubber ring for extruding the inner wall of the upper end enclosure.
By adopting the technical scheme, the rubber ring is arranged, so that when the upper sealing head is sleeved outside the tank body, the end face of the tank body extrudes the rubber ring and the upper sealing head, and the air tightness between the upper sealing head and the tank body is further improved.
A process for preparing a novel compressor accumulator, which is used for preparing the novel compressor accumulator as claimed in any one of claims 1 to 6, and comprises the following process steps:
s1, preparing materials, selecting an upper end enclosure and a lower end enclosure with the same specification according to a drawing, selecting a tank body made of a cold-rolled steel plate, and checking that the outer wall and the inner wall of the upper end enclosure, the lower end enclosure and the tank body have no cracks or damages;
s2 rough machining is conducted, an annular convex rib is fixed on the inner circumferential wall of the upper end enclosure in a welding mode, and a ring groove for accommodating the annular convex rib is formed on the outer circumferential wall of the tank body through a numerical control milling machine;
s3, cleaning, namely, putting the upper end enclosure and the lower end enclosure into a pickling tank for pickling and phosphating, and then washing and drying the upper end enclosure and the lower end enclosure by using clear water;
s4, electroplating, namely placing the upper end enclosure, the lower end enclosure and the tank body which are finished in the step S2 into an electroplating pool, and electroplating a 4-6mm zinc coating on the outer surfaces of the upper end enclosure, the lower end enclosure and the tank body;
s5, performing cold treatment, namely placing the upper end enclosure, the lower end enclosure and the tank body in a freezer and performing cold treatment by vapor liquid nitrogen, wherein the temperature is-60 ℃, and the heat preservation time is 1 hour;
s6, pipe installation, namely, enabling a straight pipe part of a red copper air inlet pipe and a straight pipe part of a red copper air outlet pipe to penetrate through an upper end enclosure, and then fixedly connecting the air inlet pipe and the air outlet pipe with the upper end enclosure in a gas welding mode;
s7, assembling, namely bonding rubber rings on two end faces of the tank body, respectively sleeving an upper seal head and a lower seal head on two ends of the tank body, and embedding annular convex edges into annular grooves in the outer peripheral wall of the tank body;
s8, welding, namely continuously welding the joints of the upper end enclosure and the lower end enclosure with the tank body;
s9 detection, namely detecting the upper end enclosure, the lower end enclosure and the tank body by an ultrasonic flaw detector without hidden damage and cracks, immersing the lower end enclosure, the upper end enclosure and the tank body into a water pool, and detecting the air tightness of the tank body by ventilating an air inlet pipe and an air outlet pipe;
s10, plastic packaging, spraying epoxy resin paint on the surfaces of the tank body, the upper end enclosure and the lower end enclosure which are processed in the step S9, and packaging after drying.
Through adopting above-mentioned technical scheme, can increase the corrosion resisting property of reservoir through the mode of electroplating to through cold treatment, can improve the intensity of reservoir, improve the life of reservoir, through subsequent plastic envelope operation, can further protect the surface of reservoir, synthesize the life who improves the reservoir simultaneously.
The invention is further configured to: the step of cold processing in step S5 includes: the liquid storage device of step S4 is first cooled with cold water, and after gradually cooled, the liquid storage device is placed in a freezer for cold preservation at a constant temperature for 1 hour.
By adopting the technical scheme, the liquid storage device can be slowly cooled in a manner of pre-cooling cold water, so that resources are saved, and meanwhile, the yield of the liquid storage device is improved and the quality of the liquid storage device is improved during subsequent cold treatment.
In conclusion, the invention has the following beneficial effects:
through the upper cover, holistic reservoir is constituteed with the jar body to the low head, and through seal structure's setting, can strengthen the gas tightness between the upper cover and the jar body, and intake pipe and outlet duct are located jar internal one end and form the flexion, make the refrigerant liquid through the evaporimeter let in to the reservoir in the time, the route is longer, it makes the abundant vaporization of refrigerant liquid to provide sufficient time, and the end of flexion sets up dorsad on intake pipe and the outlet duct, avoid having the refrigerant liquid of tiny particle drop of water directly to let in the outlet duct under atmospheric pressure, thereby the buffering effect of reservoir has been improved, effectively protect the life of compressor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the structure of the inlet and outlet tubes of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure: 1. an upper end enclosure; 2. a lower end enclosure; 3. a tank body; 4. an air inlet pipe; 5. an air outlet pipe; 6. a bending section; 7. a straight tube portion; 8. an annular rib; 9. a ring groove; 10. a rubber ring.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
The first embodiment is as follows: the utility model provides a novel reservoir for compressor, as shown in fig. 1 and fig. 2, including upper cover 1 and low head 2, the jar body 3 that is the tubular structure is established to the cover between upper cover 1 and the low head 2, fixedly connected with intake pipe 4 and outlet duct 5 on the upper cover 1, form the flexion 6 that is located jar body 3 through the bending machine clod wash on intake pipe 4 and the outlet duct 5, adjacent flexion 6 is kept away from the one end that is located the upper cover 1 outer and is set up dorsad each other, the upper end of jar body 3 is located to 1 cover of upper cover, be equipped with seal structure between upper cover 1 and the jar body 3.
As shown in fig. 3, the bending portion 6 is U-shaped, the bending portion 6 of the inlet pipe 4 is staggered around the bending portion 6 of the outlet pipe 5, one end of the bending portion 6 in the tank body 3 is arranged towards the upper end enclosure 1, the inlet pipe 4 and the outlet pipe 5 are integrally formed into a straight pipe portion 7 adjacent to the bending portion 6, and an included angle of 90-120 degrees is formed between the straight pipe portion 7 and one end of the bending portion 6.
As shown in fig. 4 and 5, the sealing structure includes an annular protruding edge 8 located on the inner peripheral wall of the upper end enclosure 1, an annular groove 9 for accommodating the annular protruding edge 8 is formed on the outer peripheral wall of the tank body 3, the longitudinal section of the annular protruding edge 8 is triangular, the right-angle side of the annular protruding edge 8 is arranged towards the inner concave part of the upper end enclosure 1, a rubber ring 10 for extruding the inner wall of the upper end enclosure 1 is bonded to the top end of the tank body 3, and specifically, the rubber ring 10 is integrally processed by butadiene rubber.
The working principle is as follows: the evaporimeter evaporates the refrigerator and lets in the reservoir through pipe fitting and intake pipe 4, because intake pipe 4 and outlet duct 5 comprise straight tube portion 7 and flexion 6, and form 90 ~ 120 contained angle before straight tube portion 7 and flexion 6, enable gentle the flowing to the flexion 6 of the refrigerant liquid of straight tube portion 7 of flowing through, through the flexion 6 that is the U-shaped, can fully vaporize when enabling the refrigerant liquid to flow through flexion 6, and outlet duct 5 and intake pipe 4 are located the one end export of jar body 3 and set up dorsad each other, make the refrigerant liquid that gets into jar body 3 through intake pipe 4 can short-term storage in jar body 3, carry out abundant vaporization, and the refrigerant liquid of abundant vaporization can be carried to the compressor from outlet duct 5 under the effect of atmospheric pressure, improve the stock solution effect of reservoir, and guarantee the life of compressor.
Example two: a process for preparing a novel compressor accumulator, which is used for preparing the novel compressor accumulator as claimed in any one of claims 1 to 6, and comprises the following process steps:
s1, preparing materials, selecting an upper end enclosure 1 and a lower end enclosure 2 with the same specification according to a drawing, selecting a tank body 3 made of a cold-rolled steel plate, and checking that no crack or damage is displayed on the outer wall and the inner wall of the upper end enclosure 1, the lower end enclosure 2 and the tank body 3;
s2 rough machining is carried out, the annular convex rib 8 is fixed on the inner circumferential wall of the upper end enclosure 1 in a welding mode, and a ring groove 9 for accommodating the annular convex rib 8 is formed on the outer circumferential wall of the tank body 3 through a numerical control milling machine;
s3, cleaning, namely, putting the upper end enclosure 1 and the lower end enclosure 2 into a pickling tank for pickling and phosphating, and then washing and drying the two in the air by using clear water;
s4, electroplating, namely placing the upper end socket 1, the lower end socket 2 and the tank body 3 which are finished in the step S2 into an electroplating pool, and electroplating 4-6mm of zinc coating on the outer surfaces of the upper end socket 1, the lower end socket 2 and the tank body 3;
s5, performing cold treatment, namely placing the upper sealing head 1, the lower sealing head 2 and the tank body 3 in a refrigerator, performing cold treatment by vapor liquid nitrogen, wherein the temperature is-60 ℃, and keeping the temperature for 1 hour, specifically, firstly, cooling the liquid storage device subjected to the step S4 by cold water, gradually cooling, then placing the liquid storage device in the refrigerator for cold preservation at constant temperature for 1 hour, keeping the temperature for 1 hour, taking out the liquid storage device, and placing the liquid storage device in a room-temperature environment;
s6, pipe installation, namely, enabling a red copper inlet pipe 4 and a straight pipe part 7 of an outlet pipe 5 to penetrate through the upper end enclosure 1, and then fixedly connecting the inlet pipe 4 and the outlet pipe 5 with the upper end enclosure 1 in a gas welding mode;
s7, assembling, namely bonding the rubber rings 10 on two end faces of the tank body 3, respectively sleeving the upper seal head 1 and the lower seal head 2 on two ends of the tank body 3, and embedding the annular convex edge 8 into the annular groove 9 on the outer peripheral wall of the tank body 3;
s8, welding, namely continuously welding the joints of the upper end enclosure 1, the lower end enclosure 2 and the tank body 3;
s9 detection, namely detecting the upper end enclosure 1, the lower end enclosure 2 and the tank body 3 through an ultrasonic flaw detector without hidden damage and cracks, immersing the lower end enclosure 2, the upper end enclosure 1 and the tank body 3 into a water pool, and detecting the air tightness of the tank body 3 through ventilation of the air inlet pipe 4 and the air outlet pipe 5;
and S10, plastic packaging, namely spraying epoxy resin paint on the surfaces of the tank body 3, the upper end enclosure 1 and the lower end enclosure 2 which are processed in the step S9, and packaging after drying.
The mode of adopting pickling bonderizing can detach spot and grease on upper cover 1, lower cover 2 and jar internal and external surface of body 3, reduce the erosion of spot to jar body 3 and upper cover 1, lower cover 2, and at the assembly part, carry out cold processing through the liquid nitrogen of vaporization, can change the intensity and the characteristic of cold pricking steel material, improve the anti deformability of reservoir, cold water cools down simultaneously, can reduce the quantity of liquid nitrogen, and can slowly make the reservoir cool down through cold water, reduce the abrupt change of temperature when liquid nitrogen cold processing, improve the finished product quality of reservoir, improve the yields, and the operation of electroplating can protect the interior external surface of reservoir, improve the life of reservoir, in storage and use, reduce the corruption to the reservoir. .
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a novel reservoir for compressor which characterized in that: including upper cover (1) and low head (2), be equipped with the jar body (3) that are the tubular structure between upper cover (1) and low head (2), fixedly connected with intake pipe (4) and outlet duct (5) on upper cover (1), be equipped with on intake pipe (4) and outlet duct (5) and be located jar flexion (6) of body (3), it is adjacent flexion (6) are kept away from each other and are located the outer one end of upper cover (1) and set up dorsad, the upper end of jar body (3) is located to upper cover (1) cover, be equipped with seal structure between upper cover (1) and the jar body (3).
2. The accumulator of claim 1, wherein: the bent portion (6) is U-shaped, one end of the bent portion (6) located in the tank body (3) is arranged towards the upper end socket (1), a straight pipe portion (7) adjacent to the bent portion (6) is arranged on the air inlet pipe (4) and the air outlet pipe (5), and an included angle of 90-120 degrees is formed between the straight pipe portion (7) and one end of the bent portion (6).
3. The accumulator of claim 1, wherein: the bending part (6) located in the air inlet pipe (4) bypasses the bending part (6) located in the air outlet pipe (5) and is arranged in a staggered mode.
4. The accumulator of claim 1, wherein: the sealing structure comprises an annular convex edge (8) located on the inner peripheral wall of the upper end enclosure (1), and an annular groove (9) used for containing the annular convex edge (8) is formed in the outer peripheral wall of the tank body (3).
5. The novel accumulator for compressor of claim 4, characterized in that: the longitudinal section of the annular convex edge (8) is triangular, and the right-angle side of the annular convex edge (8) is arranged towards the direction of the inner concave part of the upper end enclosure (1).
6. The novel accumulator for compressor of claim 5, characterized in that: the top end of the tank body (3) is bonded with a rubber ring (10) for extruding the inner wall of the upper seal head (1).
7. A process for producing a novel compressor receiver, which is used for producing the novel compressor receiver according to any one of claims 1 to 6, characterized in that: the process comprises the following steps:
s1, preparing materials, selecting an upper end enclosure (1) and a lower end enclosure (2) with the same specification according to a drawing, selecting a tank body (3) made of a cold-rolled steel plate, and checking that no crack or damage is displayed on the outer wall and the inner wall of the upper end enclosure (1), the lower end enclosure (2) and the tank body (3);
s2 rough machining is carried out, an annular convex rib (8) is fixed on the inner circumferential wall of the upper end enclosure (1) in a welding mode, and a ring groove (9) for accommodating the annular convex rib (8) is formed on the outer circumferential wall of the tank body (3) through a numerical control milling machine;
s3, cleaning, namely, putting the upper end enclosure (1) and the lower end enclosure (2) into a pickling tank for pickling and phosphating, and then washing and airing the two by using clear water;
s4, electroplating, namely placing the upper end enclosure (1), the lower end enclosure (2) and the tank body (3) which are finished in the step S2 into an electroplating pool, and electroplating the outer surfaces of the upper end enclosure (1), the lower end enclosure (2) and the tank body (3) with a zinc coating of 4-6 mm;
s5, performing cold treatment, namely placing the upper end enclosure (1), the lower end enclosure (2) and the tank body (3) in a freezer, and performing cold treatment by vapor liquid nitrogen at the temperature of-60 ℃ for 1 hour;
s6, pipe installation, namely, enabling a red copper air inlet pipe (4) and a straight pipe part (7) of an air outlet pipe (5) to penetrate through the upper end enclosure (1), and then fixedly connecting the air inlet pipe (4) and the air outlet pipe (5) with the upper end enclosure (1) in a gas welding mode;
s7, assembling, namely bonding rubber rings (10) on two end faces of the tank body (3), respectively sleeving an upper seal head (1) and a lower seal head (2) on two ends of the tank body (3), and embedding an annular convex edge (8) into an annular groove (9) on the outer peripheral wall of the tank body (3);
s8, welding, namely continuously welding the connection parts of the upper end enclosure (1), the lower end enclosure (2) and the tank body (3);
s9 detection, namely detecting the upper end enclosure (1), the lower end enclosure (2) and the tank body (3) through an ultrasonic flaw detector without hidden damage or cracks, immersing the lower end enclosure (2), the upper end enclosure (1) and the tank body (3) into a water pool, and detecting the air tightness of the tank body (3) through ventilation of an air inlet pipe (4) and an air outlet pipe (5);
and S10, plastic packaging, namely spraying epoxy resin paint on the surfaces of the tank body (3), the upper end enclosure (1) and the lower end enclosure (2) in the step S9, and packaging after drying.
8. The process for preparing a novel liquid accumulator for a compressor, according to claim 7, is characterized in that: the step of cold processing in step S5 includes: the liquid storage device of step S4 is first cooled with cold water, and after gradually cooled, the liquid storage device is placed in a freezer for cold preservation at a constant temperature for 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517730.0A CN112665230A (en) | 2020-12-21 | 2020-12-21 | Novel liquid storage device for compressor and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517730.0A CN112665230A (en) | 2020-12-21 | 2020-12-21 | Novel liquid storage device for compressor and preparation process thereof |
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| Publication Number | Publication Date |
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| CN112665230A true CN112665230A (en) | 2021-04-16 |
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| CN202011517730.0A Pending CN112665230A (en) | 2020-12-21 | 2020-12-21 | Novel liquid storage device for compressor and preparation process thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032288B3 (en) * | 2004-07-02 | 2005-09-01 | Hansa Metallwerke Ag | Accumulator for air conditioning system, especially for vehicle, has essentially U-shaped tube with inlet and outlet sections whose axes span plane essentially parallel to but at distance from axis of housing |
| KR20080050156A (en) * | 2006-12-01 | 2008-06-05 | 주식회사 대우일렉트로닉스 | An accumulator of noise reduction type for refrigerator |
| CN107655243A (en) * | 2017-09-30 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Knockout and compressor |
| CN109539643A (en) * | 2018-11-05 | 2019-03-29 | 广东美的暖通设备有限公司 | A kind of gas-liquid separator and air conditioner |
| CN110369959A (en) * | 2019-07-30 | 2019-10-25 | 东光县鑫圣电子有限公司 | Integral type stretches liquid storage device manufacture craft |
| CN211823296U (en) * | 2020-03-26 | 2020-10-30 | 新昌县日菱冷冻股份有限公司 | Durable liquid storage device assembly |
-
2020
- 2020-12-21 CN CN202011517730.0A patent/CN112665230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032288B3 (en) * | 2004-07-02 | 2005-09-01 | Hansa Metallwerke Ag | Accumulator for air conditioning system, especially for vehicle, has essentially U-shaped tube with inlet and outlet sections whose axes span plane essentially parallel to but at distance from axis of housing |
| KR20080050156A (en) * | 2006-12-01 | 2008-06-05 | 주식회사 대우일렉트로닉스 | An accumulator of noise reduction type for refrigerator |
| CN107655243A (en) * | 2017-09-30 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Knockout and compressor |
| CN109539643A (en) * | 2018-11-05 | 2019-03-29 | 广东美的暖通设备有限公司 | A kind of gas-liquid separator and air conditioner |
| CN110369959A (en) * | 2019-07-30 | 2019-10-25 | 东光县鑫圣电子有限公司 | Integral type stretches liquid storage device manufacture craft |
| CN211823296U (en) * | 2020-03-26 | 2020-10-30 | 新昌县日菱冷冻股份有限公司 | Durable liquid storage device assembly |
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Application publication date: 20210416 |