CN210345994U

CN210345994U - Evaporator module for ice crushing and making machine

Info

Publication number: CN210345994U
Application number: CN201921318457.1U
Authority: CN
Inventors: 熊继承; 熊志承; 余彭木
Original assignee: Shanghai Mingying Refrigeration Equipment Co Ltd
Current assignee: Shanghai Mingying Refrigeration Equipment Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-17
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses an evaporator module for ice crushing and making machine, include: the top of the evaporator round pipe is provided with an ice outlet, the bottom of the evaporator round pipe is provided with a water inlet, and the outer side of the round pipe is provided with a heat exchange mechanism; the top end of the worm is sleeved in the top of the circular tube, the bottom end of the worm penetrates out of the bottom of the circular tube, and the worm is provided with spiral teeth; the upper worm fixing piece is sleeved on the inner side of the top of the circular tube, and the top end of the worm is sleeved on the middle parts of the first sealing piece and the first bearing in the fixing piece and is fixedly connected with the first sealing piece and the first bearing through a fastening bolt and a corresponding screw hole; the lower worm fixing piece is sleeved on the inner side of the bottom of the circular tube, two second bearings and a second sealing piece are sleeved on the lower worm fixing piece, a sealing ring is arranged between the fixing piece and the bottom of the circular tube, and the bottom of the circular tube is arranged on an installation seat through the fixing piece; and the ice crushing knives are arranged at the bottom of the fixing piece on the worm. The structure is reasonable and the performance is stable.

Description

Evaporator module for ice crushing and making machine

Technical Field

The utility model belongs to the ice machine field specifically is an evaporator module for garrulous ice machine.

Background

An ice maker is a device that cools water into ice through an evaporator. Ice making machines can be classified into a pellet ice machine, a flake ice machine, a tube ice machine, and the like according to the form of ice.

For example, in the pellet ice making apparatus of CN206387159U, the specific form of the produced pellet ice is columnar ice. Wherein, the crushed ice is scraped off by the helical reamer on the inner wall of the evaporator, and then is pressed and formed by the extrusion action at the ice outlet, thereby obtaining the columnar ice.

Such as the evaporator of model D of snowflake ice maker with the publication number CN204757470U, wherein the ice layer formed on the inner wall of the evaporator needs to be scraped off by a spiral scraper and then conveyed to the ice outlet.

The prior art ice making machines similar to the ice making process described above all suffer from the following disadvantages: since the ice-producing form of these types of ice-making machines is not fluid ice, the crushed ice is pressed to harden to different degrees during being scraped by the scraper and being conveyed to the ice outlet, i.e. the hardening or freezing of the ice particles leads to poor uniformity of the ice particles and also to blockage of the ice particle discharge channel.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcomings of the prior art, the utility model provides an evaporator module for ice crushing and making machine.

The utility model provides a technical scheme that its technical problem adopted is: an evaporator module for a crushed ice maker comprising:

the bottom of the evaporator round tube is provided with a water inlet, the top of the evaporator round tube is provided with an ice outlet, the bottom end of the evaporator round tube is provided with a base, and the top end of the evaporator round tube is provided with a cover plate;

the worm is sleeved inside the circular evaporator tube, the bottom end of the worm extends out of the circular evaporator tube, and the top end of the spiral tooth of the worm is close to the inner wall of the circular evaporator tube but is not completely attached to the inner wall of the circular evaporator tube so as to form a spiral ice making channel between the spiral tooth of the worm and the circular evaporator tube;

and the heat exchange mechanism is arranged around the evaporator round tube between the water inlet and the ice outlet and is used for exchanging heat with water flowing into the spiral ice making channel so as to make the water into ice.

The top pipe of the circular pipe of the evaporator is internally provided with a fixing part on the worm, the fixing part on the worm is a cup-shaped component with a through hole at the bottom, the top end of the worm is sleeved with the fixing part, and the top end of the worm in the cup-shaped component is sequentially sleeved with a first sealing element and a first bearing and fixed at the top end of the worm through the fixing part.

The fixing piece for fixing the first sealing piece and the first bearing comprises a fixing gasket and a bolt, the top end of the worm is provided with a screw hole, and the first sealing piece and the first bearing are fixed at the top end of the worm by penetrating the bolt through the fixing gasket covered on the first bearing and then screwing the bolt into the screw hole at the top end of the worm.

And an ice crushing blade is arranged at the bottom of the fixing piece on the worm and is used for crushing ice discharged from the ice outlet.

The ice crushing knife comprises two cutting edges, wherein one cutting edge is a triangular sharp knife, and the other cutting edge is a blunt knife similar to a four-corner frustum.

The outer diameter of the opening at the upper end of the upper fixing piece of the worm is slightly larger to form a step, so that the upper end of the upper fixing piece of the worm protrudes out of the top end of the circular tube of the evaporator, the top end of the upper fixing piece of the worm is provided with a fixing hole, and the cover plate is fixed at the top end of the upper fixing piece of the worm through the fixing piece.

The side wall of the fixing piece on the worm is provided with a plurality of limiting holes, the inner wall of the circular tube of the evaporator is also provided with corresponding limiting holes, and the fixing piece is inserted into the limiting holes of the fixing piece and the limiting holes to limit and fix the fixing piece on the worm.

The bottom pipe of the evaporator round pipe is internally provided with a lower worm fixing piece which is a cylindrical component sleeved at the bottom of the worm, a circle of boss with a smaller inner diameter is arranged inside the cylindrical component, a second sealing piece is arranged above the boss, a second bearing is arranged below the boss, and an installation base is fixedly connected with a base at the bottom end of the evaporator round pipe through the fixing piece, so that the lower worm fixing piece, the second sealing piece and the second bearing are fixed at the bottom of the evaporator round pipe.

The bottom of the lower worm fixing piece extends outwards horizontally to form a circle of protruding platform, and the protruding platform is located between the mounting base and the base at the bottom end of the circular tube of the evaporator, so that the lower worm fixing piece is limited and fixed.

The second sealing element is a mechanical seal and comprises a static module and a movable module, and the static module and the movable module are used for realizing sealing between the lower fixed part of the worm and the worm.

Furthermore, a circle of sealing ring or a sealing gasket is arranged between the outwards extending protruding platform of the lower worm fixing piece and the base of the circular tube, and is used for realizing sealing between the lower worm fixing piece and the circular tube of the evaporator.

The second bearing comprises two bearings which are arranged vertically and adjacently.

Compare with the evaporimeter module of the granule ice maker among the prior art, the beneficial effects of the utility model are that: it is more reasonable to have a more stable performance and better trash ice effect, can guarantee to go out ice stably, continuously, specifically as follows:

1. the mechanical friction between the worm and the non-rotating part is effectively avoided, the operation is more stable, and the service life of the corresponding part is prolonged.

2. The rigidity of the spiral teeth of the worm is far stronger than that of a common scraper with a fin-shaped structure, the worm is not easy to damage, the service life is long, and the maintenance cost is reduced.

3. The ice crushing cutter structure of the fixing piece on the worm can crush ice more uniformly, so that ice particles are more uniform, the ice outlet is not easy to block, and continuous ice discharging is realized.

Drawings

Fig. 1 is a perspective view schematically illustrating an evaporator module for an ice crusher and an ice maker according to an embodiment.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a schematic view of the upper fixture of the worm of fig. 2.

Fig. 4 is a perspective view of fig. 3.

Fig. 5 is a schematic view of the lower worm mount, the seal ring and the worm shaft with a portion of the rod omitted in fig. 2.

Description of the figure numbers:

10. an evaporator round tube, 11, an ice outlet, 12, a water inlet, 13, a heat exchange mechanism,

14. a round tube base 140, a fixing hole of the round tube base,

20. a worm, 200, spiral teeth, 201, a fixed gasket, 202, a third limit step,

21. a fixing piece on the worm 210, an ice crushing blade 211, a second limit step 212, a through hole at the bottom of the cup,

213. the fixing hole of the fixing piece on the worm, 214, the first limit step, 215, the limit hole,

216. sharp knife 217, blunt knife 22, cover plate 220, fixing hole of cover plate,

23. a first seal, 24, a first bearing, 25, a threaded bore in the tip of the worm,

26. a worm lower fixture, 260, a boss in the worm lower fixture, 261, a raised platform, 27, a second bearing,

28. the second sealing element, 280. the movable module, 281. the static module, 30. the sealing ring, 40. the installation base.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

In the present invention, the definition of "slightly larger" or "slightly smaller" is to make a proper gap exist between the related components, and mechanical friction can be avoided, and the definition does not mean absolute limitation or preference for the size of the corresponding component/structure.

As shown in fig. 1, the evaporator module for an ice crusher/maker of the present embodiment includes:

the bottom of the evaporator round tube 10 is provided with a water inlet 12, the top of the evaporator round tube is provided with an ice outlet 11, the bottom end of the evaporator round tube 10 is provided with a base 14, and the top end of the evaporator round tube is provided with a cover plate 22;

the worm 20 is sleeved inside the circular evaporator tube 10, the bottom end of the worm extends out of the circular evaporator tube 10, and the top end of the spiral tooth 200 of the worm 20 is close to the inner wall of the circular evaporator tube 10 but is not completely attached to form a spiral ice making channel between the top end and the circular evaporator tube 10;

and the heat exchange mechanism 13 is arranged around the evaporator round pipe 10 between the water inlet 12 and the ice outlet 11 and is used for exchanging heat with the water flowing into the spiral ice making channel so as to make the water into ice. Heat exchange mechanism 13 is any one among the prior art, for example through the heat exchange tube that the welding set up, through the heat transfer passageway etc. that the welding obtained, consequently the utility model discloses do not carry out concrete description to this heat exchange mechanism 13.

The water for ice making is cooled into ice in the ice making passage between the worm 20 and the circular tube 10, and then is upwardly transferred to the ice outlet 11 by the rotation of the worm 20.

As shown in fig. 2 and 3, an upper worm fixing member 21 is disposed in the top tube of the circular tube 10 of the evaporator, the upper worm fixing member 21 is a cup-shaped member having a through hole 212 at the bottom, and is sleeved on the top end of the worm 20, and the top end of the worm 20 in the cup-shaped member is sequentially sleeved with a first sealing member 23 and a first bearing 24 and is fixed to the top end of the worm 20 through a fixing member.

The inner diameter of the worm fixing part 21 is matched with the first bearing 24 and the first sealing part 23, and the aperture of the through hole 212 at the bottom of the worm fixing part is slightly larger than the outer diameter of the corresponding position on the worm 20, so that the mechanical friction is avoided during the rotation process. And the through hole 212 at the bottom of the worm upper fixing member 21 has a slightly smaller hole diameter at its inner side edge, so that a ring of first limiting step 214 extending horizontally inwards is formed at the through hole, and the shape of the worm 20 corresponding to the first limiting step 214 is matched with the first limiting step 214, so as to prevent the worm 20 from being excessively moved upwards to jack up when the evaporator is in a non-working state, such as during installation or maintenance.

The fixing member for fixing the first sealing member 23 and the first bearing 24 comprises a fixing gasket 201 and a bolt, the top end of the worm 20 is provided with a screw hole 25, and the first sealing member 23 and the first bearing 24 are fixed on the top end of the worm 20 by passing the bolt through the fixing gasket 201 covered on the first bearing 24 and then screwing the bolt into the screw hole 25 at the top end of the worm 20. The fixing washer 201 is different from a general washer in that its outer diameter should be larger than the inner diameter of the top of the first bearing 24, instead of being fitted between the bolt and the worm 20.

As shown in fig. 4, the bottom of the worm upper fixture 21 is provided with an ice crushing blade 210 for crushing the ice discharged from the ice outlet 11.

The ice crushing blade 210 comprises two blades, wherein one blade is a sharp blade 216 similar to a triangle, and the other blade is a blunt blade 217 similar to a quadrangular frustum. The worm 20 scrapes off and conveys the ice layer adhered to the inner wall of the circular tube 10 upward during the rotation, and the scraped ice may be hardened together by being pressed by force during the process. The hardened ice blocks are broken up or broken up mainly by the sharp knife 216 of the ice breaking knife 210 at the bottom of the fixing piece 21 on the worm, so that the ice blocks are changed into required broken ice, and the broken ice is easier to discharge from the ice outlet 11, so that blockage is avoided; the blunt blade 217 is relatively small, but when the ice making speed is high, that is, the amount of crushed ice conveyed to the ice outlet 11 in unit time is large, the blunt blade 217 can break the upper ice layer, and the possibility that a large amount of crushed ice accumulates in front of the blade edge of the sharp blade 216 is avoided.

The outer diameter of the upper opening of the upper worm fixing member 21 is slightly larger to form a second limiting step 211, so that the upper end of the upper worm fixing member 21 protrudes out of the top end of the evaporator round tube 10, that is, the upper worm fixing member 21 is clamped and sleeved at the top end of the round tube 10 through the second limiting step 211 at the upper opening of the upper worm fixing member, the top end of the upper worm fixing member 21 is provided with a fixing hole 213, and the cover plate 22 is fixed at the top end of the upper worm fixing member 21 through a fixing member, such as a screw.

The side wall of the worm upper fixing member 21 is provided with a limiting hole 215, the inner wall of the evaporator round tube 10 is also provided with a corresponding limiting hole (not shown in the figure), and the worm upper fixing member 21 is limited and fixed by inserting a fixing member, such as a screw, into the limiting holes of the fixing member and the evaporator round tube. The first bearing 24 ensures the rotating installation of the top of the worm 21, but the first bearing 24 and the first sealing member 23 may drive the fixing member 21 on the worm to rotate, which may affect the stable operation of the ice maker. Therefore, the main function of the limiting hole 215 is to prevent the rotation of the fixing member 21 on the worm. There is no particular requirement or limitation on the number of the limiting holes 215, and in this embodiment, the number of the limiting holes 215 formed in the side wall of the worm upper fixing member 21 is two.

As shown in fig. 5, a worm lower fixing member 26 is disposed in the bottom tube of the evaporator round tube 10, the worm lower fixing member 26 is a cylindrical member, and is sleeved on the bottom of the worm 20, a circle of boss 260 with a smaller inner diameter is disposed inside the cylindrical member, a second sealing member 28 is disposed above the boss 260, a second bearing 37 is disposed below the boss, a mounting base 40 is connected and fixed with the base 14 at the bottom end of the evaporator round tube 10 through a fixing member, such as a bolt and a nut, a fixing hole 140 is disposed on the base 14 of the round tube 10, and a fixing hole corresponding to the fixing hole 140 is disposed on the mounting base 40, so that the worm lower fixing member 26, the second sealing member 28, and the second bearing 27 are fixed at the bottom of the evaporator round tube 10.

The outer diameter of the section of the rod body on the worm 20 corresponding to the boss 260 in the worm lower fixing member 26 is slightly smaller than the inner diameter of the boss 260 to avoid mechanical friction, and the outer diameter of the section of the rod body is larger than the inner diameter of the second bearing 27, so that the worm 20 forms a third limit step 202 above the top of the second bearing 27 to avoid excessive downward movement of the worm 20.

The bottom end of the lower worm fixing piece 26 extends horizontally outwards to form a ring of protruding platform 261, and the protruding platform 261 is located between the mounting base 40 and the base 14 at the bottom end of the evaporator round tube 10, so that the lower worm fixing piece 26 is limited and fixed.

The second sealing element 28 is a mechanical seal, and includes a static module 281 and a movable module 280 for sealing between the worm lower fixing element 26 and the worm 20. The mechanical seal is a mature product in the prior art, the detailed structure of the mechanical seal is not described in detail, the mechanical seal mainly comprises two modules, a static module 281 and a movable module 280 can realize rotary seal, the static module 281 is sleeved above a boss 260 in the worm lower fixing piece 26, the movable module 280 is sleeved above the static module 281, and the outer diameter of a worm 20 above the top of the movable module 280 is slightly larger, so that the movable module 280 is limited and contact seal is realized. During the rotation of the worm 20, the static module 281 and the worm lower fixing member 26 are not moved, and the movable module 280 rotates with the worm 20.

Further, a ring of sealing ring 30 is provided between the outwardly extending raised platform 260 of the worm lower fixture 26 and the base 14 of the tube 10 for sealing the worm lower fixture 26 with the evaporator tube 10.

Further, the second bearing 27 includes two bearings disposed adjacent to each other up and down to improve the rotational stability of the worm 20.

When the evaporator module for the ice crushing and making machine works, the heat exchange mechanism 13 is connected with a refrigeration working medium, the bottom of the worm 20 is connected with the driving mechanism, and the driving mechanism drives the worm to rotate so as to start working. Water for ice making flows in from the water inlet 11 and is cooled into ice on the inner wall of the round tube 10. The worm 20 rotates, the spiral teeth 200 scrape the ice on the inner wall of the circular tube 10 and convey the ice upwards to the lower part of the worm upper fixing piece 21, during the conveying process, the ice particles or small ice blocks on the spiral teeth 200 may be hardened or frozen together, and then the ice particles or small ice blocks are broken by the ice breaking blade 210 and discharged from the ice outlet 12.

Claims

1. An evaporator module for a crushed ice maker, comprising:

the heat exchange mechanism is arranged around the evaporator round pipe between the water inlet and the ice outlet and is used for exchanging heat with water flowing into the spiral ice making channel so as to make the water into ice;

the upper worm fixing piece is a cup-shaped component with a through hole at the bottom and is sleeved at the top end of the worm, and the top end of the worm in the cup-shaped component is sequentially sleeved with a first sealing element and a first bearing and is fixed at the top end of the worm through the fixing piece;

the lower worm fixing piece is a cylindrical component which is sleeved at the bottom of the worm, a circle of boss with smaller inner diameter is arranged inside the cylindrical component, a second sealing piece is arranged above the boss, a second bearing is arranged below the boss, and an installation base is fixedly connected with a base at the bottom end of the circular evaporator pipe through the fixing piece, so that the lower worm fixing piece, the second sealing piece and the second bearing are fixed at the bottom of the circular evaporator pipe;

and the ice crushing blade is arranged at the bottom of the fixing piece on the worm and is used for crushing ice blocks discharged from the ice outlet.

2. The evaporator module as recited in claim 1, wherein the fixing member for fixing the first sealing member and the first bearing comprises a fixing washer and a bolt, the top end of the worm is provided with a threaded hole, and the first sealing member and the first bearing are fixed to the top end of the worm by passing the bolt through the fixing washer covered on the first bearing and then screwing the bolt into the threaded hole of the top end of the worm.

3. The evaporator module of claim 1, wherein the ice crusher comprises two blades, one blade being a "triangular-like" sharp blade and the other blade being a "quadrangular frustum-like" blunt blade.

4. The evaporator module as recited in claim 1, wherein the outer diameter of the opening of the upper end of the upper fixing member of the worm is slightly larger to form a step so that the upper end of the upper fixing member of the worm protrudes from the top end of the evaporator tube, and the top end of the upper fixing member of the worm is provided with a fixing hole through which the cover plate is fixed to the top end of the upper fixing member of the worm.

5. The evaporator module as recited in claim 1, wherein a plurality of limiting holes are formed on the side wall of the worm upper fixing member, and a corresponding limiting hole is also formed on the inner wall of the evaporator circular tube, and the worm upper fixing member is limited and fixed by inserting the fixing member into the limiting holes of the worm upper fixing member and the fixing member.

6. The evaporator module as recited in claim 1, wherein said bottom end of said worm lower mount extends horizontally outwardly with a raised ledge between said mounting base and said base of said bottom end of said evaporator tube to hold said worm lower mount in place.

7. The evaporator module of claim 1, wherein said second seal is a mechanical seal comprising a static module and a moving module for effecting a seal between said worm lower mount and the worm.

8. The evaporator module as recited in claim 1, wherein a ring of sealing rings or gaskets is provided between the outwardly extending raised platform of the lower worm mount and the base of the tube for sealing the lower worm mount to the evaporator tube.

9. The evaporator module of claim 1, wherein the second bearing comprises two bearings disposed adjacent one another.