Efficient direct injection type continuous ice evaporator and ice maker

Abstract

An efficient direct injection type mein ice evaporator comprises a roller (1), the outer circumferential wall of the roller (1) is used for freezing, an energy storage structure (33) is arranged on the inner circumferential wall of the roller (1), and the energy storage structure (33) stores cold energy and conducts cold to the outer circumferential wall of the roller (1); the efficient direct injection type mein ice evaporator is provided with an energy storage structure, so that the ice making efficiency is further improved; the utility model further provides an ice making machine which adopts the soft ice evaporator.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice making machine technical field, concretely relates to a kind of high-efficiency direct-injection type cotton ice evaporator and ice maker. BACKGROUND

[0002] Cotton ice evaporator includes ice making roller and scraper located at the circumference of ice making roller, when ice making roller rotates, scraper cuts ice layer on the outer peripheral wall of ice making roller to obtain cotton ice, although the working principle is relatively simple, but it is very difficult to further improve efficiency, the applicant proposes a new type of direct-injection type cotton ice evaporator, refrigerant pipeline is directly through the inside of roller, reduce mutual interference, conducive to improving ice making efficiency.The new type of direct-injection type cotton ice evaporator includes roller, the outer peripheral wall of the roller is used for icing, and further includes refrigerant pipe, the refrigerant pipe is used to flow refrigerant, the refrigerant pipe is arranged from one end of the roller to the other end, the refrigerant pipe is sequentially provided with first section, inner side part and second section from one end of the roller to the other end direction, the first section is rotatably sleeved with the end of one end of the roller, the second section is rotatably sleeved with the end of the other end of the roller, and the inner side part is located in the roller;The inner side part includes first part and second part not directly connected, the first section is communicated with the first part to form inflow channel, the second part is communicated with the second section to form outflow channel, the first part is provided with outlet, and the second part is provided with discharge outlet.The detailed content can be seen from the prior Chinese utility model patent application No.2024211747972 and patent application No.2024219128082 proposed by the applicant.

[0003] The applicant further proposes a kind of high-efficiency direct-injection type cotton ice evaporator and ice maker, to further improve efficiency, and, in the present application, all contents of the technical scheme proposed in the aforementioned Chinese utility model patent application No.2024211747972 and Chinese utility model patent application No.2024219128082 are incorporated into the present application. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to propose a kind of high-efficiency direct-injection type cotton ice evaporator, with energy storage structure, conducive to further improving ice making efficiency;Also propose a kind of ice maker, using the aforementioned cotton ice evaporator.

[0005] The technical solution of the utility model is: a kind of cotton ice evaporator, including roller, the outer peripheral wall of the roller is used for icing, the inner peripheral wall of the roller is provided with energy storage structure, and the energy storage structure stores cold energy, and then guides cold to the outer peripheral wall of the roller.

[0006] After adopting the above structure, the utility model has the following advantages:

[0007] The energy storage structure essentially increases the surface area of the inner circumferential wall of the drum. In the case of a large surface area, it is beneficial to conduct the cold as quickly as possible to the energy storage structure and the inner circumferential wall of the drum, which is the first reason for improving efficiency. The second reason is that the energy storage structure increases the material and surface area, which can accommodate more cold and continuously conduct the cold to the outer circumferential wall of the drum. The combination of the two reasons is beneficial to further improve the ice making efficiency.

[0008] As a preferred, the energy storage structure is provided as fins and / or concave-convex structures.

[0009] As a preferred, the fins are spirally distributed along the axial direction of the drum on the inner circumferential wall of the drum.

[0010] As a preferred, it also includes a refrigerant pipe for circulating refrigerant. The refrigerant pipe sends refrigerant into the drum to release direct contact with the energy storage structure and recovers the refrigerant after heat exchange to send it out of the drum.

[0011] As a preferred, the refrigerant pipe is made of a whole continuous circulation pipe or multiple pipes, which extends from one end of the drum to the other end. The refrigerant pipe is sequentially divided into a first section, an inner portion and a second section from one end of the drum to the other end. The first section is rotatably sleeved with the end of one end of the drum, the second section is rotatably sleeved with the end of the other end of the drum, and the inner portion is located in the drum. The inner portion is spaced apart to form a first part and a second part that are not directly connected or is provided with a separation portion. Under the separation of the separation portion, the inner portion is sequentially divided into a first part and a second part that are not directly connected along the axial direction. The first section communicates with the first part to form an inlet channel, the second part communicates with the second section to form an outlet channel, the first part is provided with an outlet, and the second part is provided with an exhaust port.

[0012] The said non-direct connection means that the refrigerant is directly sprayed into the drum through the inlet channel and the outlet, and the refrigerant is vaporized after absorbing heat and enters the outlet channel to be discharged from the drum.

[0013] As a preferred, the end of one end of the drum is further sleeved with a first support portion on the outer periphery of the first section, and the end of the other end of the drum is further sleeved with a second support portion on the outer periphery of the second section. The first support portion and the second support portion are used to support the drum to rotate together. At the same time, a first sealing ring is arranged in the annular space between the first support portion and the first section, and a second sealing ring is arranged in the annular space between the second support portion and the second section. When the first support portion, the second support portion and the drum rotate together, the assembly composed of the first support portion, the second support portion and the drum rotates relative to the refrigerant pipe, while the refrigerant pipe does not rotate.

[0014] As a preferred, the outer end of the first support portion is connected with a first end cover, and the first section passes through the first end cover to the outside and is rotatably connected. And / or, the outer end of the second support portion is connected with a second end cover, and the second section passes through the second end cover to the outside and is rotatably connected.

[0015] As preferred, the first section is provided with a first limiting step, the second section is provided with a second limiting step, the first limiting step constitutes a first axial limitation after the first end cover is connected with the outer side end of the first support part, the second limiting step constitutes a second axial limitation after the second end cover is connected with the outer side end of the second support part, and the refrigerant pipe is axially limited between the first end cover and the second end cover under the action of the first axial limitation and the first axial limitation.

[0016] As preferred, a first axial limiting part is further arranged in the annular space between the first support part and the first section, the first axial limiting part is used for limiting the axial movement of the first sealing ring, a second axial limiting part is further arranged in the annular space between the second support part and the second section, and the second axial limiting part is used for limiting the axial movement of the second sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of a direct-injection type continuous-ice evaporator.

[0018] Figure 2 It is a perspective view of a refrigerant pipe.

[0019] Figure 3 It is a top view of a direct-injection type continuous-ice evaporator.

[0020] Figure 4 It is a sectional view along A-A direction.

[0021] Figure 5 It is a top view of a direct-injection type continuous-ice evaporator, which is provided with a scraper in the circumferential direction.

[0022] Figure 6 It is a perspective view of a direct-injection type continuous-ice evaporator, which is rotatably arranged on an ice-making support.

[0023] Figure 7 It is a perspective view mainly showing the positional relationship of the first axial limiting part, the second axial limiting part, the first sealing ring and the second sealing ring (the drum in the figure is arranged to be relatively short in the axial direction).

[0024] Figure 8 It is a top view of a component formed by welding a drum with a first support part and a second support part.

[0025] Figure 9 It is a sectional view along B-B direction.

[0026] Figure 10 It is a perspective view of a high-efficiency direct-injection type continuous-ice evaporator of the present disclosure, which mainly shows the spiral arrangement of the energy storage structure.

[0027] Figure 11A front view of a high-efficiency direct-injection continuous-ice evaporator of the present disclosure.

[0028] Figure 12 A C-C cross-sectional view.

[0029] As shown in the drawings: 1 - roller, 2 - refrigerant pipe, 3 - first section, 4 - inner part, 4.1 - first part, 4.2 - second part, 5 - second section, 6 - first support part, 7 - second support part, 8 - first sealing ring, 9 - second sealing ring, 10 - first limit step, 11 - second limit step, 12 - separation part, 13 - first end cover, 14 - second end cover, 15 - first gasket, 16 - second gasket, 17 - scraper, 18 - transmission gear, 19 - ice making support, 20 - first bearing, 21 - second bearing, 22 - inlet channel, 23 - outlet channel, 24 - outlet, 25 - discharge port, 26 - socket hole, 27 - transverse opening, 28 - first axial limiting piece, 29 - second axial limiting piece, 30 - first containing interval, 31 - second containing interval, 32 - blocking piece, 33 - energy storage structure. DETAILED DESCRIPTION

[0030] For a better understanding of the present application, various aspects of the present application will be described in more detail below with reference to the accompanying drawings. It should be understood that these detailed description is only a description of exemplary embodiments of the present application, and does not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0031] In the drawings, the thickness, size and shape of the objects have been slightly exaggerated for ease of illustration. The drawings are merely exemplary and not strictly drawn to scale.

[0032] It should also be understood that the terms "comprise", "include", "have", "contain", "contain", when used in the specification, mean that the features, whole, steps, operations, elements and / or components exist, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or combinations thereof.

[0033] The high-efficiency direct-injection continuous-ice evaporator of the present disclosure can be based on the prior technical solution of the present applicant, i.e. further setting the energy storage structure 33 on the basis of the prior technical solution of the present applicant, in order to better understand, first of all, the prior technical solution of the present applicant will be described in detail.

[0034] As Figures 1 to 9As shown, a straight injection type continuous ice evaporator of the applicant is disclosed, which can be used in an ice maker. The continuous ice evaporator comprises a roller 1 and a refrigerant pipe 2. The refrigerant pipe 2 is used for flowing refrigerant. The refrigerant pipe 2 extends from one end of the roller 1 to the other end. The refrigerant pipe 2 is made of a whole continuous flow pipe, for example, a whole pipe or a plurality of pipes connected in sequence. For example, the whole pipe is a whole stainless steel seamless pipe, and the plurality of pipes connected in sequence are a plurality of stainless steel seamless pipes connected in sequence along the axial direction. When the plurality of stainless steel seamless pipes are connected in sequence, the transverse space between the adjacent stainless steel seamless pipes can be used to set a plug 32. For example, the adjacent stainless steel seamless pipes can be bridged by the plug 32, so that the adjacent stainless steel seamless pipes are connected together by the plug 32, and then the partition 12 is formed. Of course, from the aspect of manufacturing convenience, the whole stainless steel seamless pipe is preferably used as the refrigerant pipe 2.

[0035] In some embodiments, in order to plug the whole stainless steel seamless pipe to form the partition 12, the following structure can be used, as shown in Figure 2 A transverse opening 27 is formed on the whole continuous flow pipe, and the transverse opening 27 is matched with the plug 32 to form the partition 12.

[0036] As shown in Figure 2 , 4 The refrigerant pipe 2 is sequentially provided with a first section 3, an inner side part 4 and a second section 5 from one end of the roller 1 to the other end. The first section 3 is rotatably sleeved with the end of one end of the roller 1 through a sleeving hole 26. The sleeving hole 26 can be referred to Figure 9 The second section 5 is rotatably sleeved with the end of the other end of the roller 1 through a sleeving hole 26. The inner side part 4 is located in the roller 1. The end of one end of the roller 1 is further sleeved with a first support part 6 on the outer periphery of the first section 3. The end of the other end of the roller 1 is further sleeved with a second support part 7 on the outer periphery of the second section 5. The first support part 6 and the second support part 7 are used to support the roller 1 to rotate together. At the same time, the first sealing ring 8 and the first axial limiting part 28 are arranged in the annular space between the first support part 6 and the first section 3. The first axial limiting part 28 is used to limit the axial movement of the first sealing ring 8. The second sealing ring 9 and the second axial limiting part 29 are arranged in the annular space between the second support part 7 and the second section 5. The second axial limiting part 29 is used to limit the axial movement of the second sealing ring 9. When the first support part 6, the second support part 7 and the roller 1 rotate together, the assembly composed of the first support part 6, the second support part 7 and the roller 1 rotates relative to the refrigerant pipe 2, while the refrigerant pipe 2 does not rotate, so that the refrigeration oil is not easy to leak.

[0037] Therefore, in the production and manufacturing of the present disclosure, the assembly process can refer to the following, the refrigerant pipe 2 sequentially passes through the assembly of the first support part 6, the second support part 7, and the roller 1, and then the first end cover 13 and the second end cover 14 are connected after the first sealing ring 8 and the first axial limiting part 28, the second sealing ring 9 and the second axial limiting part 29 are respectively sleeved on both ends, and the installation is convenient and efficient. Since the refrigerant pipe 2 is made of a whole continuous flow pipe, the axial structure is stable, and it also has good strength and support.

[0038] In some embodiments, in order to be more convenient for axial limiting and installation, as shown in the drawings, Figure 2 The first limiting step 10 is arranged on the first section 3, and the second limiting step 11 is arranged on the second section 5. After the first end cover 13 is connected with the outer side end of the first support part 6, the first limiting step 10 constitutes the first axial limiting. After the second end cover 14 is connected with the outer side end of the second support part 7, the second limiting step 11 constitutes the second axial limiting. The refrigerant pipe 2 is axially limited between the first end cover 13 and the second end cover 14 under the action of the first axial limiting and the second axial limiting. In order to be convenient for connection, the first end cover 13 is threadedly connected with the outer side end of the first support part 6, and the second end cover 14 is threadedly connected with the outer side end of the second support part 7.

[0039] Further, as shown in the drawings, Figure 4 The first gasket 15 is arranged between the first limiting step 10 and the first end cover 13, and the second gasket 16 is arranged between the second limiting step 11 and the second end cover 14. In this way, contact occurs through the gaskets, and the first limiting step 10 and the second limiting step 11 are avoided from being abraded.

[0040] The first gasket 15 and the second gasket 16 are preferably oil-containing gaskets, so as to be beneficial to reducing friction.

[0041] As shown in the drawings, Figure 9 The first axial limiting part 28 and the second axial limiting part 29 are preferably in the form of a sleeve. The first axial limiting part 28 in the form of a sleeve can be tightly fitted on the first section 3, or is further fitted and then welded, so as to be firmly combined on the first section 3. Of course, the first axial limiting part 28 can be loosely fitted on the first section 3 instead of being tightly connected, and the axial position is limited by the first gasket 15 described below. The first axial limiting part 28 and the second axial limiting part 29 can also not be in the form of a sleeve, but can also be other structures. Any structure that can be applied to the present disclosure and achieve the purpose of axial limiting can be used.

[0042] In addition to the idea of manufacturing separate parts, it can also be integrally arranged, for example, the first axial limiting part 28 is machined or cast on the first section 3. Similarly, the second section 5 can also be similarly arranged.

[0043] In some embodiments, as shown in the drawings, Figure 4As shown, the number of the first sealing rings 8 is one or more, the first sealing rings 8 are sleeved on the first section 3 and arranged close to the side of the roller 1, the first axial limiting member 28 is arranged on the first section 3 and arranged away from the side of the roller 1, and the first sealing ring 8 is axially limited between the first axial limiting member 28 and the side of the roller 1; the number of the second sealing rings 9 is one or more, the second sealing rings 9 are arranged on the second section 5 and arranged close to the side of the roller 1, the second axial limiting member 29 is sleeved on the second section 5 and arranged away from the side of the roller 1, and the second sealing ring 9 is axially limited between the second axial limiting member 29 and the side of the roller 1. In this way, better sealing performance is achieved, refrigerant is prevented from entering the positions where the first axial limiting member 28 and the second axial limiting member 29 are located, and the portions of the first support part 6 and the second support part 7 away from the side of the roller 1 are also less likely to be at a low temperature.

[0044] In some embodiments, as shown in Figure 4 、 9 the first axial limiting member 28 and the side of the roller 1 form a first containing interval 30, and the first sealing ring 8 is limited in the first containing interval 30 so that the first sealing ring 8 is arranged in a non-axially compressed state; the second axial limiting member 29 and the side of the roller 1 form a second containing interval 31, and the second sealing ring 9 is limited in the second containing interval 31 so that the second sealing ring 9 is arranged in a non-axially compressed state. In this way, the sealing ring is not in a compressed or dead state, so that the sealing ring is self-adapting according to the rotation condition, thereby achieving better sealing effect and sealing life.

[0045] In the present disclosure, as shown in Figure 2 、 4 the inner side part 4 is provided with a separation part 12, and under the separation of the separation part 12, the inner side part 4 is sequentially divided into a first part 4.1 and a second part 4.2 which are not directly communicated in the axial direction, the first section 3 communicates with the first part 4.1 to form an inflow channel 22, the second part 4.2 communicates with the second section 5 to form an outflow channel 23, the first part 4.1 is provided with an outlet 24, and the second part 4.2 is provided with a discharge outlet 25; the non-direct communication means that, under the separation of the separation part 12, the refrigerant is directly sprayed into the roller 1 through the inflow channel 22 and the outlet 24, and after the refrigerant absorbs heat and vaporizes, the refrigerant enters the outflow channel 23 through the discharge outlet 25 to be discharged from the roller 1. Figure 4 The arrows shown represent the general direction of the flow of the refrigerant.

[0046] Of course, other structures can also be used, for example, the refrigerant pipe 2 is made of a plurality of pipes, the refrigerant pipe 2 is composed of two stainless steel pipes, and the inner sides of the two ends of the two stainless steel pipes are arranged at intervals. In this way, a non-direct communication state is naturally formed, which means that the inner side part 4 is divided into the first part 4.1 and the second part 4.2 which are not directly communicated.

[0047] In order to better diffuse the refrigerant, the inner end of the stainless steel pipe for the refrigerant entering the middle is sealed, and a plurality of outlets 24 are sequentially formed on the circumferential wall of the stainless steel pipe in the axial direction. The inner end of the other stainless steel pipe for the refrigerant returning to the middle is not sealed, and the inner end is the discharge outlet 25.

[0048] In some embodiments, as shown in Figure 2 , 4 The outlets 24 are arranged as a plurality of through holes sequentially arranged in the axial direction of the first part 4.1, and the through holes are arranged on the pipe wall of the first part 4.1. In this way, the refrigerant is more evenly distributed in the drum 1 to improve the refrigeration efficiency. In addition, there is no need to additionally arrange the capillary structure such as the capillary tube mentioned in the prior art.

[0049] The discharge outlet 25 is arranged as a through hole on the pipe wall of the second part 4.2, and the discharge outlet 25 is arranged close to the end of the other end of the drum 1. In this way, the refrigerant is more evenly distributed in the drum 1 to further improve the refrigeration efficiency.

[0050] The number and flow aperture size of the outlets 24 and the number and flow aperture size of the discharge outlet 25 can be arranged according to the flow demand of the refrigerant. At present, the number of outlets 24 is 5, and the number of discharge outlets 25 is 1.

[0051] Of course, the specific structure and number of the outlets 24 and the specific structure and number of the discharge outlet 25 can also be other structures, which cannot be listed one by one.

[0052] In some embodiments, as shown in Figure 4 The drum 1 can be obtained by a seamless stainless steel pipe with both ends open. Then the first support part 6 and the second support part 7 are respectively welded on both ends of the drum body to cover the two open ends, so that the first support part 6, the second support part 7 and the drum 1 form an assembly. The first support part 6 and the second support part 7 can support the drum 1 to rotate together. In addition, the production and manufacturing are simple, which is conducive to improving the production efficiency.

[0053] The length of the drum 1 can be different to form ice-making surfaces of different lengths. As shown in Figure 1 The length of the drum 1 is relatively short, and as shown in Figure 5 , 6 , 8, 9, the length of the drum 1 is relatively long.

[0054] The disclosure also provides an ice maker, which comprises a compressor, a scraper 17 and the endless ice evaporator. As shown in Figure 5 The scraper 17 is arranged in the circumferential direction of the endless ice evaporator, and the compressor supplies refrigerant to the refrigerant pipe 2 of the endless ice evaporator.

[0055] The refrigeration machine sprayed from the inner portion 4 through the compressor cycle refrigerant rapidly cools the drum 1, and the outer circumferential surface of the drum 1 contacts the liquid to form an ice layer. As the ice layer thickens, the ice layer is contacted by the scraper 17, and under the rotation of the drum 1, the scraper 17 cuts the ice layer to obtain the soft ice.

[0056] In some embodiments, as shown in Figure 6 , further comprising an ice making support 19, the direct injection type soft ice evaporator is mounted on the ice making support 19, a first bearing 20 is arranged between the first support portion 6 of the direct injection type soft ice evaporator and the ice making support 19, a second bearing 21 is arranged between the second support portion 7 of the direct injection type soft ice evaporator and the ice making support 19, and the direct injection type soft ice evaporator rotates relative to the ice making support 19 through the first bearing 20 and the second bearing 21. In this way, the first support portion 6, the second support portion 7, and the drum 1 are more stably rotated through the first bearing 20 and the second bearing 21.

[0057] As shown in Figure 6 , in order to drive the drum 1 to rotate, the second support portion 7 is provided with a transmission gear 18, which is driven by an electric motor and then by a gear transmission structure, so as to further drive the second support portion 7, and then drive the first support portion 6, the second support portion 7, and the drum 1 to rotate together.

[0058] Through the above, it can be clearly understood that the prior technical solution of the applicant is that an energy storage structure 33 is arranged on the inner circumferential wall of the drum (1), the energy storage structure 33 stores cold energy, and then conducts the cold energy to the outer circumferential wall of the drum (1), so as to obtain the high-efficiency direct injection type soft ice evaporator of the present disclosure, as shown in Figure 10 , 11 , and 12.

[0059] In some embodiments, as shown in Figure 10 , 12 , the energy storage structure 33 is arranged as a fin. In this way, a larger energy storage area can be formed, and the cold energy conduction efficiency is higher.

[0060] Further, as shown in Figure 10 , 12 , the fin is spirally distributed on the inner circumferential wall of the drum 1 along the axial direction of the drum 1. In this way, a cold groove is formed between adjacent fins, and the energy storage performance is better. The spiral distribution can be continuous or discontinuous, and in this example, it is continuously arranged.

[0061] The energy storage structure 33 can also be other structures, such as a concave-convex structure, a concave pit in the concave-convex structure can realize a cold pit, and a spiral groove, a groove in the spiral groove realizes a cold groove.

[0062] In understanding the utility model, if necessary, the above structure can refer to other embodiments / appendix Figure 1 And understand, here not to repeat.

[0063] The above is only the embodiment of the utility model for example, therefore, the equivalent change or modification of the structure, features and principles described in the utility model patent protection scope is included in the utility model patent protection scope.

Claims

1. A high efficiency direct spray continuous ice evaporator comprising a drum (1) having a peripheral wall for ice formation, characterised in that: The inner circumferential wall of the roller (1) is provided with an energy storage structure (33), which stores cold energy and then conducts the cold energy to the outer circumferential wall of the roller (1).

2. A high efficiency direct spray fibrous ice evaporator as claimed in claim 1 wherein: The energy storage structure (33) is provided in the form of fins and / or concave-convex structures.

3. A high efficiency direct spray fibrous ice evaporator as claimed in claim 1 wherein: The fins are spirally distributed along the axial direction of the roller (1) on the inner circumferential wall of the roller (1).

4. A high efficiency direct spray fibrous ice evaporator as claimed in claim 1 or 2 or 3 wherein: Further comprising a refrigerant pipe (2) for circulating refrigerant, the refrigerant pipe (2) sends the refrigerant into the roller (1) to release direct contact with the energy storage structure (33), and recovers the refrigerant after heat exchange to send out of the roller (1).

5. A high efficiency direct spray fibrous ice evaporator according to claim 4 wherein: The refrigerant pipe (2) is made of a whole continuous circulation pipe or multiple pipes, which extends from one end of the roller (1) to the other end, and is sequentially divided into a first section (3), an inner portion (4) and a second section (5) from one end of the roller (1) to the other end. The first section (3) is rotatably sleeved with the end of one end of the roller (1), the second section (5) is rotatably sleeved with the end of the other end of the roller (1), and the inner portion (4) is located in the roller (1). The inner portion (4) is spaced apart to form a first part (4.1) and a second part (4.2) which are not directly connected or is provided with a separation part (12). Under the separation of the separation part (12), the inner portion (4) is sequentially divided into the first part (4.1) and the second part (4.2) along the axial direction. The first section (3) is in communication with the first part (4.1) to form an inlet channel (22), the second part (4.2) is in communication with the second section (5) to form an outlet channel (23), the first part (4.1) is provided with an outlet (24), and the second part (4.2) is provided with a discharge outlet (25). The said non-direct connection means that the refrigerant is directly sprayed into the roller (1) through the inlet channel (22) and the outlet (24), and after the refrigerant absorbs heat and vaporizes, it enters the outlet channel (23) through the discharge outlet (25) to be discharged from the roller (1).

6. A high efficiency direct spray fibrous ice evaporator according to claim 5 wherein: The end of one end of the roller (1) is further sleeved with a first support part (6) on the outer periphery of the first section (3), and the end of the other end of the roller (1) is further sleeved with a second support part (7) on the outer periphery of the second section (5). The first support part (6) and the second support part (7) are used to support the roller (1) to rotate together. At the same time, a first sealing ring (8) is arranged in the annular space between the first support part (6) and the first section (3), and a second sealing ring (9) is arranged in the annular space between the second support part (7) and the second section (5). When the first support part (6), the second support part (7) and the roller (1) rotate together, the assembly composed of the first support part (6), the second support part (7) and the roller (1) rotates relative to the refrigerant pipe (2), while the refrigerant pipe (2) does not rotate.

7. A high efficiency direct spray fibrous ice evaporator according to claim 6 wherein: The outer end of the first support part (6) is connected with a first end cover (13), and the first section (3) passes through the first end cover (13) outward and is rotatably connected. And / or, the outer end of the second support part (7) is connected with a second end cover (14), and the second section (5) passes through the second end cover (14) outward and is rotatably connected.

8. A high efficiency direct spray fibrous ice evaporator according to claim 7 wherein: The first segment (3) is provided with a first limiting step (10), the second segment (5) is provided with a second limiting step (11), after the first end cover (13) is connected with the outer side end of the first supporting part (6), the first limiting step (10) constitutes the first axial limitation, after the second end cover (14) is connected with the outer side end of the second supporting part (7), the second limiting step (11) constitutes the second axial limitation, the refrigerant pipe (2) is axially limited between the first end cover (13) and the second end cover (14) under the action of the first axial limitation and the first axial limitation.

9. A high efficiency direct spray fibrous ice evaporator according to claim 6 wherein: The annular interval between the first supporting part (6) and the first segment (3) is further provided with a first axial limiting part (28), the first axial limiting part (28) is used for limiting the axial movement of the first sealing ring (8), the annular interval between the second supporting part (7) and the second segment (5) is further provided with a second axial limiting part (29), the second axial limiting part (29) is used for limiting the axial movement of the second sealing ring (9).

10. An ice maker comprising a compressor, a scraper (17) and an evaporator, the scraper (17) being disposed in a circumferential direction of a drum (1) of the evaporator, the compressor supplying a refrigerant to a refrigerant pipe (2) of the evaporator, characterized in that: The evaporator adopts the high-efficiency direct-spraying type continuous-ice evaporator in any one of claims 1 to 9.

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