CN216668015U

CN216668015U - Low-temperature refrigeration system for multistage automatic overlapping

Info

Publication number: CN216668015U
Application number: CN202123083768.4U
Authority: CN
Inventors: 郁序卫; 徐俊; 包建彬
Original assignee: Wuxi Kangdi Air Conditioner Co ltd
Current assignee: Wuxi Kangdi Air Conditioner Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-03
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a multi-stage automatic overlapping type low-temperature refrigeration system, in particular to the technical field of low-temperature refrigeration systems, which comprises refrigeration guide sheets, wherein one side of the refrigeration guide sheets for dissipating heat is fixedly connected with an overlapping mechanism, one end of the overlapping mechanism, which is far away from the refrigeration guide sheets, is movably connected with a fixing mechanism, the overlapping mechanism comprises first fixing blocks, the bottoms of the first fixing blocks are fixedly connected with the four corners of one side of the refrigeration guide sheets and are uniformly distributed, one side of the refrigeration guide sheets, which is close to the first fixing blocks, is provided with a group of first limiting grooves, the refrigeration guide sheets have small occupied area and are convenient to use, direct current is used for refrigeration and have no noise, the other end of a connecting plate starts to be close to or far away under the limiting of a second rotating rod, the horizontal length of the connecting plate is further changed, the position of the refrigeration guide sheets is changed, and a whole system is fixed by bolts through fixing holes on one side of a third fixing plate, the position of the refrigerating system is changed, and the using effect is improved.

Description

Low-temperature refrigeration system for multistage automatic overlapping

Technical Field

The utility model relates to the technical field of low-temperature refrigeration systems, in particular to a multi-stage automatic cascade low-temperature refrigeration system.

Background

The evaporation temperature must be above the freezing point of the refrigerant or the refrigerant cannot be circulated. When the evaporation temperature of the refrigeration cycle is lower than the freezing point of the refrigerant, the refrigerant is frozen and does not flow, thereby losing the circulating flow characteristics. For example: the freezing point of R717 is-77.7 ℃, the limit temperature of the R717 refrigeration cycle is-77.7 ℃, when the evaporation temperature is very low, the evaporation pressure of the refrigerant is very low, the specific volume is very large, so the refrigerating capacity of the refrigerant per unit volume is very small, and the size of the compressor is too large. For example, in the case of conventional refrigerants R22 and R17, the refrigeration capacities per unit volume at t k ═ 40 ℃ and t 0 ═ 70 ℃ were only 6.9% and 5.2% respectively at t k ═ 40 ℃ and t 0 ═ 15 ℃. The possibility of air permeating into a refrigerant system is increased due to the excessively low evaporation pressure, meanwhile, the gas transmission system of the compressor is reduced due to the increase of the interstage pressure, the running performance of the system is reduced, the requirement on the sealing performance of the system in installation is high, and in the modern industry, low-temperature technology is applied more and more;

the prior art for cryogenic refrigeration systems has the following problems:

1. the existing low-temperature refrigeration systems adopt a compressor to compress cold air or liquid nitrogen to physically cool, so that the occupied area is large, the movement is inconvenient, and the noise is large;

2. the existing low-temperature refrigeration system does not have a mechanism capable of changing the position of a refrigerator, the position of the refrigerator cannot be changed along with the change of the position in use, and a certain influence is caused on the refrigeration effect.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a multi-stage auto-cascade cryogenic refrigeration system that solves the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: a low-temperature refrigeration system for a multistage automatic overlapping type comprises a refrigeration guide vane, wherein a overlapping mechanism is fixedly connected to one side, which is used for heat dissipation, of the refrigeration guide vane, and a fixing mechanism is movably connected to one end, which is far away from the refrigeration guide vane, of the overlapping mechanism;

the overlapping mechanism comprises a first fixing block, the bottom of the first fixing block is fixedly connected to four corners of one side of the refrigeration guide sheet and is uniformly distributed, and one side, close to the first fixing block, of the refrigeration guide sheet is provided with a set of first limiting grooves.

Preferably, the inner surface of the first limiting groove is in sliding connection with one side, close to the refrigeration guide sheet, of the first fixing block, the end faces, close to each other, of the first fixing block are rotatably connected with a first rotating rod, and the first rotating rod penetrates through the first fixing block and extends outwards.

Preferably, first pivot pole surface swing joint has first fixed plate, one side that first fixed plate is close to the refrigeration guide vane and refrigeration guide vane fixed connection, first fixed plate top fixedly connected with second fixed plate, second fixed plate and first pivot pole in close contact with and sliding connection.

Preferably, first rotation pole both ends fixedly connected with first limiting plate, be provided with even board between first limiting plate and the first fixed block, first rotation pole runs through even board, even board.

Preferably, the central point swing joint that even board is close to each other has the second dwang, the second dwang runs through a set of even board, second dwang both ends fixedly connected with second limiting plate.

Preferably, the fixed establishment includes a set of third fixed plate, the third fixed plate sets up and keeps away from refrigeration guide one side in overlapping mechanism, a set of fixed orifices has been seted up on the third fixed plate surface, one side fixedly connected with threading board that the third fixed plate is close to overlapping mechanism, a set of second spacing groove has been seted up on the threading board surface, second spacing inslot surface with link the board and keep away from the one end sliding connection of refrigeration guide, threading board both sides fixedly connected with dead lever, the dead lever runs through the threading board and links the board, link the board and be connected with the dead lever rotation, threading board internal thread is connected with the lead screw, and is a set of threading board internal thread opposite direction, the wheel is twisted to lead screw top fixedly connected with.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the refrigeration guide vane is arranged, one side of the refrigeration guide vane, which is used for dissipating heat, is fixedly connected with the overlapping mechanism, and one end of the overlapping mechanism, which is far away from the refrigeration guide vane, is movably connected with the fixing mechanism, so that the refrigeration guide vane has small occupied area and is convenient to use, and the refrigeration guide vane is refrigerated by direct current and has no noise;

2. according to the utility model, the overlapping mechanism is arranged, the other end of the connecting plate starts to be close to or far away from the connecting plate under the limit of the second rotating rod, so that the horizontal length of the connecting plate is changed, the position of the refrigeration guide sheet is changed, and after the connecting plate reaches a designated position, the whole system is fixed by using bolts through the fixing holes on one side of the third fixing plate, so that the position of the refrigeration system is changed, and the use effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the whole of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic structural diagram of the whole of the present invention.

In the figure: 1. a refrigeration guide vane; 2. a cascade mechanism; 21. a first fixed block; 22. a first limit groove; 23. a first rotating lever; 231. a first fixing plate; 232. a second fixing plate; 24. a first limit plate; 25; connecting plates; 26. a second rotating lever; 27. a second limiting plate; 3. a fixing mechanism; 31. a third fixing plate; 311. a fixing hole; 32. a thread plate; 33. a second limit groove; 34. fixing the rod; 35. a screw rod; 36. and (4) screwing the wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is as follows: as shown in fig. 1-3, the present invention provides a multi-stage automatic overlapping type low-temperature refrigeration system, which comprises a refrigeration guide vane 1, wherein a overlapping mechanism 2 is fixedly connected to a heat-dissipating side of the refrigeration guide vane 1, and a fixing mechanism 3 is movably connected to one end of the overlapping mechanism 2 away from the refrigeration guide vane 1;

the overlapping mechanism 2 comprises first fixing blocks 21, the bottoms of the first fixing blocks 21 are fixedly connected to four corners of one side of the refrigeration guide sheet 1 and are uniformly distributed, and one side, close to the first fixing blocks 21, of the refrigeration guide sheet 1 is provided with a first limiting groove 22.

Further, the inner surface of the first limiting groove 22 is slidably connected to one side of the first fixing block 21 close to the refrigeration guide piece 1, the end surface of the first fixing block 21 close to each other is rotatably connected with a first rotating rod 23, the first rotating rod 23 penetrates through the first fixing block 21 and extends outwards, the refrigeration guide piece 1 is electrified with direct current to start refrigeration, the outer surface of the first rotating rod 23 is movably connected with a first fixing plate 231, one side of the first fixing plate 231 close to the refrigeration guide piece 1 is fixedly connected with the refrigeration guide piece 1, the top of the first fixing plate 231 is fixedly connected with a second fixing plate 232, the second fixing plate 232 is tightly contacted with the first rotating rod 23 and is slidably connected with first limiting plates 24 at two ends of the first rotating rod 23, a connecting plate 25 is arranged between the first limiting plate 24 and the first fixing block 21, the first rotating rod 23 penetrates through the connecting plate 25, the central point of the connecting plate 25 close to each other is movably connected with a second rotating rod 26, the second dwang 26 runs through a set of even board 25, and second dwang 26 both ends fixedly connected with second limiting plate 27, and even board 25 of screw plate 32 one side begins to rotate, and even board 25 is under the spacing of second dwang 26, and even the board 25 other end begins to be close to or keeps away from, and then changes even board 25's horizontal length, has changed the position of refrigeration guide vane 1

Further, the fixing mechanism 3 includes a set of third fixing plate 31, the third fixing plate 31 is disposed on one side of the stacking mechanism 2 away from the refrigeration guide piece 1, a set of fixing holes 311 is disposed on the surface of the third fixing plate 31, a threaded plate 32 is fixedly connected to one side of the third fixing plate 31 close to the stacking mechanism 2, a set of second limiting groove 33 is disposed on the surface of the threaded plate 32, an inner surface of the second limiting groove 33 is slidably connected to one end of the connecting plate 25 away from the refrigeration guide piece 1, fixing rods 34 are fixedly connected to two sides of the threaded plate 32, the fixing rods 34 penetrate through the threaded plate 32 and the connecting plate 25, the connecting plate 25 is rotatably connected to the fixing rods 34, a lead screw 35 is threadedly connected to the inside of the threaded plate 32, the directions of internal threads of the set of threaded plates 32 are opposite, a screwing wheel 36 is fixedly connected to the top of the lead screw 35, a screwing wheel 36 is moved, the screwing wheel 36 starts to rotate so that the lead screw 35 at the bottom of the screwing wheel 36 starts to rotate, and further the upper and the lower threaded plate 32 are close to or far away from each other.

The working principle is as follows: when the device is used, the refrigeration guide sheet 1 is electrified with direct current to start refrigeration, the screwing wheel 36 is screwed, the screwing wheel 36 starts to rotate, so that the screw rod 35 at the bottom of the screwing wheel 36 starts to rotate, the upper threaded plate 32 and the lower threaded plate 32 are close to or far away from each other, the connecting plate 25 on one side of the threaded plate 32 starts to rotate, the connecting plate 25 is limited by the second rotating rod 26, the other end of the connecting plate 25 starts to be close to or far away from, the horizontal length of the connecting plate 25 is changed, the position of the refrigeration guide sheet 1 is changed, and after the specified position is reached, the fixing hole 311 on one side of the third fixing plate 31 is used for fixing through a bolt.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A cryogenic refrigeration system for multistage auto-cascade comprising a refrigeration vane (1), characterized in that: a cascade mechanism (2) is fixedly connected to one side of the refrigeration guide vane (1) for heat dissipation, and a fixing mechanism (3) is movably connected to one end, far away from the refrigeration guide vane (1), of the cascade mechanism (2);

overlapping mechanism (2) are including first fixed block (21), and are a set of first fixed block (21) bottom fixed connection in refrigeration guide piece (1) one side four corners, and evenly distributed, a set of first spacing groove (22) have been seted up to one side that refrigeration guide piece (1) is close to first fixed block (21).

2. A cryogenic refrigeration system for a multiple stage auto-cascade as claimed in claim 1 wherein: first spacing groove (22) internal surface and one side sliding connection that first fixed block (21) are close to refrigeration guide vane (1), the terminal surface that first fixed block (21) are close to each other rotates and is connected with first rotation pole (23), first rotation pole (23) pass first fixed block (21) and outwards extend.

3. A cryogenic refrigeration system for a multiple stage auto-cascade as claimed in claim 2 wherein: first pivot pole (23) surface swing joint has first fixed plate (231), one side and the refrigeration guide vane (1) fixed connection that first fixed plate (231) are close to refrigeration guide vane (1), first fixed plate (231) top fixedly connected with second fixed plate (232), second fixed plate (232) and first pivot pole (23) in close contact with and sliding connection.

4. A cryogenic refrigeration system for a multi-stage auto-cascade as claimed in claim 3 wherein: first stopper plate (24) of first bull stick (23) both ends fixedly connected with, be provided with between first stopper plate (24) and first fixed block (21) and link board (25), first bull stick (23) run through even board (25), link board (25).

5. A cryogenic refrigeration system for a multi-stage auto-cascade as claimed in claim 4 wherein: even central point swing joint that board (25) are close to each other has second dwang (26), a set of even board (25) is run through in second dwang (26), second dwang (26) both ends fixedly connected with second limiting plate (27).

6. A cryogenic refrigeration system for a multiple stage auto-cascade as claimed in claim 1 wherein: the fixing mechanism (3) comprises a set of third fixing plate (31), the third fixing plate (31) is arranged on one side, far away from the refrigeration guide sheet (1), of the overlapping mechanism (2), a set of fixing hole (311) is formed in the surface of the third fixing plate (31), a threaded plate (32) is fixedly connected to one side, close to the overlapping mechanism (2), of the third fixing plate (31), a set of second limiting groove (33) is formed in the surface of the threaded plate (32), the inner surface of the second limiting groove (33) is in sliding connection with one end, far away from the refrigeration guide sheet (1), of the connecting plate (25), fixing rods (34) are fixedly connected to two sides of the threaded plate (32), the fixing rods (34) penetrate through the threaded plate (32) and the connecting plate (25), the connecting plate (25) is in rotating connection with the fixing rods (34), and a lead screw (35) is in threaded connection with the threaded plate (32), the internal thread directions of the thread plates (32) are opposite, and the top of the screw rod (35) is fixedly connected with a screwing wheel (36).