High-reliability direct injection type continuous ice evaporator and ice maker

Abstract

A high-reliability direct injection type mein ice evaporator comprises a roller and a refrigerant pipe, the end portion of one end of the roller is sleeved with a first supporting portion on the periphery of a first section, the end portion of the other end of the roller is further sleeved with a second supporting portion on the periphery of a second section, and a first sealing ring is arranged in an annular interval between the first supporting portion and the first section. A second sealing ring is arranged in an annular interval between the second supporting part and the second section, the first sealing ring and the second sealing ring are both special-shaped sealing rings, and each special-shaped sealing ring comprises an O-shaped main body, a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring; the inner peripheral walls of the first supporting part and the second supporting part are attached to the first sealing ring and the second sealing ring in a sealed mode, and the outer peripheral walls of the first section and the second section are attached to the third sealing ring and the fourth sealing ring in a sealed mode. The reliability of the high-reliability direct injection type mein ice evaporator is further improved by improving the sealing design; 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 maker technical field, concretely relates to a kind of high reliability direct-injection type continuous ice evaporator and ice maker. BACKGROUND

[0002] Continuous ice evaporator includes ice-making roller and scraper located at the circumference of ice-making roller, when ice-making roller rotates, the ice layer on the outer peripheral wall of ice-making roller is cut by scraper to obtain continuous ice, to improve ice-making efficiency and reliability, the applicant proposes a new direct-injection type continuous ice evaporator, which reduces mutual interference by passing through the inside of roller directly, which is conducive to improving ice-making efficiency. The new direct-injection type continuous ice evaporator includes a roller, the outer periphery of the roller is used for ice formation, and further includes a refrigerant pipe for circulating refrigerant. The refrigerant pipe extends from one end of the roller to the other end. The refrigerant pipe sequentially includes a first section, an inner section and a second section from one end of the roller to the other end. The first section is rotatably connected to the end of the roller. The second section is rotatably connected to the other end of the roller. The inner section is located in the roller. The inner section includes a first part and a second part that are not directly connected. 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 has an outlet. The second part has an outlet. For more details, please refer to the technical solutions of the applicant's prior Chinese utility model patent application No. 2024211747972 and patent application No. 2024219128082.

[0003] From the above, the first section and the end of one end of the roller are rotatably sleeved, and the second section and the end of the other end of the roller are rotatably sleeved. Therefore, in operation, the first section and the end of one end of the roller are in a state of having a gap for a long time, and the second section and the end of the other end of the roller are in a state of having a gap for a long time. In order to seal, the end of one end of the roller is sleeved with a first supporting part on the outer periphery of the first section, and the end of the other end of the roller is sleeved with a second supporting part on the outer periphery of the second section. The first supporting part and the second supporting part are used to support the roller to rotate together. At the same time, a first sealing ring is arranged in the annular space between the first supporting part and the first section, and a second sealing ring is arranged in the annular space between the second supporting part and the second section. When the first supporting part, the second supporting part and the roller rotate together, the assembly composed of the first supporting part, the second supporting part and the roller rotates relative to the refrigerant pipe, and the refrigerant pipe does not rotate. Therefore, the sealing purpose is achieved through the first sealing ring and the second sealing ring. However, in operation, the first supporting part and the first section are always in a relative rotating state, and the second supporting part and the second section are always in a relative rotating state. The outer periphery of the first sealing ring and the second sealing ring is affected by the friction of the inner wall of the first supporting part and the second supporting part. The outer periphery of the first sealing ring and the second sealing ring is affected by the friction of the inner wall of the first supporting part and the second supporting part. If a common O-ring is used, there is still a risk of leakage. Therefore, how to improve the sealing performance, that is, how to improve the reliability, needs further research.

[0004] The applicant further proposes a high-reliability direct-injection continuous-ice evaporator and an ice maker. The sealing design is improved to further improve the reliability. In the present application, the technical solutions of 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

[0005] The technical problem to be solved by the present application is to provide a high-reliability direct-injection continuous-ice evaporator, and to improve the sealing design to further improve the reliability. The present application also proposes an ice maker using the aforementioned continuous-ice evaporator.

[0006] The technical solution of the utility model is: a continuous ice evaporator, which comprises a roller, the outer peripheral wall of the roller is used for icing, further comprises a refrigerant pipe, the refrigerant pipe is used for circulating refrigerant, the refrigerant pipe is made of a whole continuous circulation pipe or multiple pipes, the refrigerant pipe extends from one end of the roller to the other end, the refrigerant pipe is sequentially divided into a first section, an inner side part and a second section from one end of the roller to the other end, 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 is sequentially divided into a first part and a second part which are not directly connected or is provided with a separation part, under the separation of the separation part, the inner side part is sequentially divided into the first part and the second part which are not directly connected along the axial direction, the first section is communicated with the first part to form an inlet channel, the second part is communicated with the second section to form an outlet channel, the first part is provided with an outlet, and the second part is provided with a discharge outlet.

[0007] The non-direct connection means that the refrigerant is directly sprayed into the roller through the inlet channel and the outlet, the refrigerant is vaporized after absorbing heat, and then enters the outlet channel through the discharge outlet to be discharged from the roller.

[0008] The end of one end of the roller is further provided with a first support part outside the periphery of the first section, the end of the other end of the roller is further provided with a second support part outside the periphery of the second section, the first support part and the second support part are used for supporting the roller to rotate together, meanwhile, a first sealing ring is arranged in the annular space between the first support part and the first section, a second sealing ring is arranged in the annular space between the second support part and the second section, when the first support part, the second support part and the roller rotate together, the assembly composed of the first support part, the second support part and the roller rotates relative to the refrigerant pipe, and the refrigerant pipe does not rotate.

[0009] The first sealing ring and the second sealing ring are both special-shaped sealing rings, the special-shaped sealing ring comprises an O-shaped body, the outer peripheral wall of the O-shaped body is provided with a first annular groove which is radially recessed, the outer peripheral wall of the O-shaped body forms a first sealing ring and a second sealing ring on the front side and the rear side of the first annular groove respectively, the inner peripheral wall of the O-shaped body is provided with a second annular groove which is radially recessed, the inner peripheral wall of the O-shaped body forms a third sealing ring and a fourth sealing ring on the front side and the rear side of the second annular groove respectively, the inner peripheral wall of the first support part and the second support part is sealed with the first sealing ring and the second sealing ring, and the outer peripheral wall of the first section and the second section is sealed with the third sealing ring and the fourth sealing ring.

[0010] After the above structure is adopted, the utility model has the following advantages:

[0011] The first sealing ring and the second sealing ring each include a first sealing ring and a second sealing ring at the outer periphery and a third sealing ring and a fourth sealing ring at the inner periphery, so that more sealing paths are provided. In addition, the outer peripheral wall of the O-shaped body forms the first sealing ring and the second sealing ring at the front and back of the first annular groove, and the inner peripheral wall of the O-shaped body forms the third sealing ring and the fourth sealing ring at the front and back of the second annular groove. Therefore, in the initial state, the first sealing ring and the second sealing ring are pressed by the inner peripheral wall of the first support part and the second support part, and the first sealing ring and the second sealing ring are elastically pressed to the front and back of the first annular groove, so that the first elastic force is provided. The first elastic force acts on the first sealing ring and the second sealing ring to press the inner peripheral wall of the first support part and the second support part. In addition, the third sealing ring and the fourth sealing ring are pressed by the outer peripheral wall of the first section and the second section, and the third sealing ring and the fourth sealing ring are elastically pressed to the front and back of the second annular groove, so that the second elastic force is provided. The second elastic force acts on the third sealing ring and the fourth sealing ring to press the outer peripheral wall of the first section and the second section. Therefore, better sealing performance is provided. In addition, if wear occurs over time, the automatic compensation can be achieved under the action of the corresponding elastic force.

[0012] As can be seen from the above, the improved sealing design is beneficial to further improve the reliability.

[0013] Preferably, the front side wall of the special-shaped sealing ring is further provided with an axially recessed third annular groove, the rear side wall of the special-shaped sealing ring is further provided with an axially recessed fourth annular groove, the first annular groove and the third annular groove form the first sealing ring, the first annular groove and the fourth annular groove form the second sealing ring, the second annular groove and the third annular groove form the third sealing ring, and the second annular groove and the fourth annular groove form the fourth sealing ring.

[0014] Preferably, the front side wall of the special-shaped sealing ring is provided with a first axial end part which can abut against the first sealing ring and the third sealing ring, and the rear side wall of the special-shaped sealing ring is provided with a second axial end part which can abut against the second sealing ring and the fourth sealing ring.

[0015] Preferably, the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove are each an arc-shaped groove.

[0016] Preferably, gaskets are arranged on the front and rear sides of the first sealing ring and the second sealing ring, and the sealing ring is accommodated between the two gaskets.

[0017] Preferably, the outer side end of the first support part is connected with a first end cover, the first section passes through the first end cover to the outer side and is rotatably connected, and / or the outer side end of the second support part is connected with a second end cover, and the second section passes through the second end cover to the outer side and is rotatably connected.

[0018] As preferred, the first section is provided with a first limiting step, the second section is provided with a second limiting step, after the first end cover is connected with the outer side end of the first support part, the first limiting step forms a first axial limitation, after the second end cover is connected with the outer side end of the second support part, the second limiting step forms a second axial limitation, 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.

[0019] As preferred, the annular space between the first support part and the first section is further provided with a first axial limiting part, the first axial limiting part is used for limiting the axial movement of the first sealing ring, the annular space between the second support part and the second section is further provided with a second axial limiting part, the second axial limiting part is used for limiting the axial movement of the second sealing ring.

[0020] As preferred, for the case with the gasket, the first axial limiting part is used as the gasket of the outermost first sealing ring, and the second axial limiting part is used as the gasket of the outermost second sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of a direct-injection continuous-ice evaporator.

[0022] Figure 2 It is a perspective view of a refrigerant pipe.

[0023] Figure 3 It is a top view of a direct-injection continuous-ice evaporator.

[0024] Figure 4 It is a sectional view along A-A direction.

[0025] Figure 5 It is a top view of a direct-injection continuous-ice evaporator with a scraper arranged in the circumferential direction.

[0026] Figure 6 It is a perspective view of a direct-injection continuous-ice evaporator rotatably arranged on an ice-making support.

[0027] 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 axial direction).

[0028] 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.

[0029] Figure 9 It is a sectional view along B-B direction.

[0030] Figure 10A three-dimensional schematic view of a spiral-shaped arrangement of a main display energy storage structure of a high-reliability direct-injection continuous-ice evaporator of the present disclosure.

[0031] Figure 11 A front view of a high-reliability direct-injection continuous-ice evaporator of the present disclosure.

[0032] Figure 12 A C-C cross-sectional view.

[0033] Figure 13 A three-dimensional schematic view of a special-shaped sealing ring of the present disclosure.

[0034] Figure 14 A front view of a special-shaped sealing ring of the present disclosure.

[0035] Figure 15 A D-D cross-sectional view.

[0036] As shown in the drawings, 1 is a roller, 2 is a refrigerant pipe, 3 is a first section, 4 is an inner side part, 4.1 is a first part, 4.2 is a second part, 5 is a second section, 6 is a first support part, 7 is a second support part, 8 is a first sealing ring, 9 is a second sealing ring, 10 is a first limiting step, 11 is a second limiting step, 12 is a separation part, 13 is a first end cover, 14 is a second end cover, 15 is a first gasket, 16 is a second gasket, 17 is a scraper, 18 is a transmission gear, 19 is an ice making support, 20 is a first bearing, 21 is a second bearing, 22 is an inlet flow channel, 23 is an outlet flow channel, 24 is an outlet, 25 is a discharge outlet, 26 is a sleeving hole, 27 is a transverse opening, 28 is a first axial limiting part, 29 is a second axial limiting part, 30 is a first containing interval, 31 is a second containing interval, 32 is a blocking piece, 33 is a first annular groove, 34 is a first sealing ring, 35 is a second sealing ring, 36 is a second annular groove, 37 is a third sealing ring, 38 is a fourth sealing ring, 39 is a third annular groove, 40 is a fourth annular groove, and 41 is a gasket. DETAILED DESCRIPTION

[0037] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, like reference numerals refer to like elements.

[0038] In the drawings, the thickness, size, and shape of objects have been slightly exaggerated for ease of explanation. The drawings are merely examples and are not strictly drawn to scale.

[0039] It should also be understood that the words "comprise", "comprising", "include", "including", "contain", "containing", when used in this specification, indicate the presence of the stated features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0040] The high-reliability direct-injection continuous-ice evaporator of the present disclosure can be based on the prior technical solution of the present applicant, that is, the first sealing ring 8 and the second sealing ring 9 are adopted as special-shaped sealing rings based on the prior technical solution of the present applicant. In order to better understand, the prior technical solution of the present applicant will be described in detail first.

[0041] As shown in Figures 1 to 9 , a direct-injection continuous-ice evaporator of the present applicant is disclosed, which can be used in an ice maker. The continuous-ice evaporator includes a roller 1 and a refrigerant pipe 2. The refrigerant pipe 2 is used for circulating refrigerant and extends from one end of the roller 1 to the other end. The refrigerant pipe 2 is made of a whole continuous circulation pipe, such as a whole stainless steel seamless pipe or a plurality of stainless steel seamless pipes sequentially spliced in the axial direction. When the plurality of stainless steel seamless pipes are sequentially spliced, the transverse space between adjacent stainless steel seamless pipes can be used to set a blocking piece 32, such as a blocking piece 32 bridging between adjacent stainless steel seamless pipes, so that the blocking piece 32 connects the adjacent stainless steel seamless pipes together, thereby forming a partition 12. Of course, from the perspective of manufacturing convenience, it is preferable to use a whole stainless steel seamless pipe as the refrigerant pipe 2.

[0042] In some embodiments, in order to block a whole stainless steel seamless pipe to form a partition 12, the following structure can be adopted, as shown in Figure 2 , a transverse opening 27 is formed on the whole continuous circulation pipe, and the transverse opening 27 is matched with a blocking piece 32 to form a partition 12.

[0043] As shown in Figure 2 , 4 , the refrigerant pipe 2 sequentially includes a first section 3, an inner side 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 the roller 1 through a sleeving hole 26. The sleeving hole 26 can be referred to Figure 9, the end of the other end of the roller 1 is rotatably sleeved with the end of the second section 5 through the sleeving hole 26, and the inner side part 4 is located in the roller 1; the end of one end of the roller 1 is further sleeved with the first supporting 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 the second supporting part 7 on the outer periphery of the second section 5, the first supporting part 6 and the second supporting part 7 are used for supporting the roller 1 to rotate together, meanwhile, the annular space 12 between the first supporting part 6 and the first section 3 is provided with the first sealing ring 8 and the 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 space 12 between the second supporting part 7 and the second section 5 is provided with the second sealing ring 9 and the second axial limiting part 29, the second axial limiting part 29 is used for limiting the axial movement of the second sealing ring 9, when the first supporting part 6, the second supporting part 7 and the roller 1 rotate together, the assembly composed of the first supporting part 6, the second supporting part 7 and the roller 1 rotates relative to the refrigerant pipe 2, while the refrigerant pipe 2 does not rotate, so that the refrigerant oil is not easy to leak.

[0044] Therefore, when the present disclosure is produced and manufactured, the assembly process can refer to the following, the refrigerant pipe 2 sequentially passes through the assembly composed of the first supporting part 6, the second supporting part 7 and the roller 1, and then the first sealing ring 8 and the first axial limiting part 28 and the second sealing ring 9 and the second axial limiting part 29 are sleeved on both ends respectively, and then the first end cover 13 and the second end cover 14 are connected, which is convenient and efficient to install. Since the refrigerant pipe 2 is made of a whole continuous flow pipe, the axial structure is stable, and also has good strength and support.

[0045] In some embodiments, in order to be more convenient for axial limiting and installation, as shown in Figure 2 , the first section 3 is provided with the first limiting step 10, and the second section 5 is provided with the 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 limiting, 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 limiting, and 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 first 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 supporting part 6, and the second end cover 14 is threadedly connected with the outer side end of the second supporting part 7.

[0046] Further, as shown in Figure 4 , the first limiting step 10 and the first end cover 13 are provided with the first gasket 15, and the second limiting step 11 and the second end cover 14 are provided with the second gasket 16. In this way, contact occurs through the gasket, avoiding wear to the first limiting step 10 and the second limiting step 11.

[0047] The first gasket 15 and the second gasket 16 preferably adopt oil-containing gaskets, thereby being beneficial to reducing friction.

[0048] As shown in Figure 9 , the first axial position limiting member 28 and the second axial position limiting member 29 are preferably in the form of a sleeve, and the first axial position limiting member 28 can be tightly fitted on the first section 3 in the form of a sleeve, or further fitted and then welded, so as to be firmly combined on the first section 3. Of course, the first axial position limiting member 28 can also 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 position limiting member 28 and the second axial position limiting member 29 can also not be in the form of a sleeve, but can also be other structures, as long as they can be applied in this disclosure and achieve the purpose of axial position limiting.

[0049] In addition to the idea of manufacturing separate parts, it can also be integrally provided, for example, the first axial position limiting member 28 can be machined or cast on the first section 3, and similarly, the second section 5 can also be similarly provided.

[0050] In some embodiments, as shown in Figure 4 , the number of first sealing rings 8 is one or more, the first sealing ring 8 is fitted on the first section 3 and is arranged close to the side of the roller 1, the first axial position limiting member 28 is arranged on the first section 3 and is arranged away from the side of the roller 1, and the first sealing ring 8 is axially limited between the first axial position limiting member 28 and the roller 1; the number of second sealing rings 9 is one or more, the second sealing ring 9 is arranged on the second section 5 and is arranged close to the side of the roller 1, the second axial position limiting member 29 is fitted on the second section 5 and is arranged away from the side of the roller 1, and the second sealing ring 9 is axially limited between the second axial position limiting member 29 and the roller 1. In this way, better sealing performance is achieved, preventing refrigerant from entering the position where the first axial position limiting member 28 and the second axial position limiting member 29 are located, and at the same time, the part of the first support portion 6 and the second support portion 7 away from the side of the roller 1 is not easily at a lower temperature.

[0051] In some embodiments, as shown in Figure 4 , 9 , a first containing interval 30 is formed between the first axial position limiting member 28 and the roller 1, 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; a second containing interval 31 is formed between the second axial position limiting member 29 and the roller 1, 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.

[0052] In this disclosure, as shown in Figure 2 , 4As shown, the inner portion 4 is provided with a partition 12, and under the partition of the partition 12, the inner portion 4 is sequentially divided into a first portion 4.1 and a second portion 4.2 which are not directly communicated in the axial direction. The first portion 4.1 is communicated with the first section 3 to form an inflow channel 22, and the second portion 4.2 is communicated with the second section 5 to form an outflow channel 23. The first portion 4.1 is provided with an outlet 24, and the second portion 4.2 is provided with a discharge outlet 25. The non-direct communication means that, under the partition of the partition 12, the refrigerant is directly sprayed into the drum 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 drum 1. Figure 4 The arrows shown represent the approximate direction of the flow of the refrigerant.

[0053] Of course, other structures are also possible, for example, the refrigerant pipe 2 is made of multiple pipes, and 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 spaced apart, so that a non-direct communication state is naturally formed. In this case, the inner portion 4 is spaced apart to form the first portion 4.1 and the second portion 4.2 which are not directly communicated.

[0054] In order to better diffuse the refrigerant, the inner end of one of the two stainless steel pipes which introduces the refrigerant is sealed, and then a plurality of outlets 24 are sequentially formed on the peripheral wall of the one stainless steel pipe in the axial direction, and the inner end of the other stainless steel pipe which recovers the refrigerant is not sealed, and the inner end is the discharge outlet 25.

[0055] In some embodiments, as shown Figure 2 , 4 As shown, the outlet 24 is provided as a plurality of through holes which are sequentially arranged in the axial direction of the first portion 4.1, and the through holes are arranged on the pipe wall of the first portion 4.1, so that the refrigerant is more evenly distributed in the drum 1 to improve the refrigeration efficiency, and in addition, there is no need to additionally provide the capillary structure such as the capillary tube mentioned in the prior art.

[0056] The discharge outlet 25 is provided as a through hole on the pipe wall of the second portion 4.2, and the discharge outlet 25 is arranged close to the end of the other end of the drum 1, so that the refrigerant is more evenly distributed in the drum 1 to further improve the refrigeration efficiency.

[0057] The number and flow aperture size of the outlet 24 and the number and flow aperture size of the discharge outlet 25 can be set according to the flow demand of the refrigerant. At present, the number of outlets 24 is set to 5, and the number of discharge outlets 25 is set to 1.

[0058] Of course, the specific structure and number of the outlet 24 and the specific structure and number of the discharge outlet 25 can also be other structures, which cannot be listed one by one.

[0059] In some embodiments, as shownFigure 4 As shown, the drum 1 can be obtained by a seamless stainless steel pipe with both ends open, and then the first support part 6 and the second support part 7 are welded at both ends of the drum body respectively, so as to cover the both ends open, so that the first support part 6, the second support part 7 and the drum 1 form an assembly, and the first support part 6 and the second support part 7 can support the drum 1 to rotate together, and in addition, the production and manufacturing are simple, which is beneficial to improve the production efficiency.

[0060] The length of the drum 1 is different, and different lengths of ice making surfaces can be formed, such as Figure 1 As shown, the length of the drum 1 is short, and as shown in Figure 5 、 6 , 8, 9, the length of the drum 1 is long.

[0061] The present disclosure also provides an ice maker, which comprises a compressor, a scraper 17 and the endless ice evaporator, as shown in Figure 5 As shown, 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.

[0062] The refrigerant is circulated by the compressor, and the refrigerant sprayed from the inner part 4 rapidly cools the drum 1, and the outer peripheral surface of the drum 1 is cooled and then contacts the liquid to form an ice layer. As the ice layer thickens, the scraper 17 will contact the ice layer, and under the rotation of the drum 1, the scraper 17 cuts the ice layer to obtain the endless ice.

[0063] In some embodiments, as shown in Figure 6 It also comprises an ice making support 19, and the direct injection type endless ice evaporator is installed on the ice making support 19, and the first support part 6 of the direct injection type endless ice evaporator is provided with a first bearing 20 between the ice making support 19, and the second support part 7 of the direct injection type endless ice evaporator is provided with a second bearing 21 between the ice making support 19, and the direct injection type endless 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 part 6, the second support part 7 and the drum 1 form a more stable assembly through the first bearing 20 and the second bearing 21.

[0064] As shown in Figure 6 In order to drive the drum 1 to rotate, in this example, the second support part 7 is provided with a transmission gear 18, which can be driven by an electric motor and then by a gear transmission structure, so as to further drive the second support part 7, so that the first support part 6, the second support part 7 and the drum 1 form an assembly and rotate together.

[0065] By the above, the prior technical solution of the applicant can be clearly understood. The first sealing ring 8 and the second sealing ring 9 of the prior technical solution are provided as the special-shaped sealing ring of the present disclosure. Specifically, the first sealing ring 8 and the second sealing ring 9 are both special-shaped sealing rings. The special-shaped sealing ring includes an O-shaped body. The outer peripheral wall of the O-shaped body is provided with a radially recessed first annular groove 33. The outer peripheral wall of the O-shaped body forms a first sealing ring 34 and a second sealing ring 35 on the front side and the rear side of the first annular groove 33, respectively. The inner peripheral wall of the O-shaped body is provided with a radially recessed second annular groove 36. The inner peripheral wall of the O-shaped body forms a third sealing ring 37 and a fourth sealing ring 38 on the front side and the rear side of the second annular groove 36, respectively. The inner peripheral wall of the first support part 6 and the second support part 7 is in close contact with the first sealing ring 34 and the second sealing ring 35 for sealing. The outer peripheral wall of the first section 3 and the second section 5 is in close contact with the third sealing ring 37 and the fourth sealing ring 38 for sealing. Thus, the high-reliability direct-injection type continuous-ice evaporator of the present disclosure is obtained, as shown in Figure 10 、 11 , 12, 13, 14, 15.

[0066] In some embodiments, as shown in Figure 15 , the front side wall of the special-shaped sealing ring is further provided with an axially recessed third annular groove 39. The rear side wall of the special-shaped sealing ring is further provided with an axially recessed fourth annular groove 40. The first annular groove 33 and the third annular groove 39 form the first sealing ring 34. The first annular groove 33 and the fourth annular groove 40 form the second sealing ring 35. The second annular groove 36 and the third annular groove 39 form the third sealing ring 37. The second annular groove 36 and the fourth annular groove 40 form the fourth sealing ring 38. In this way, the first sealing ring 34, the second sealing ring 35, the third sealing ring 37, and the fourth sealing ring 38 are more likely to swing, thereby adapting to the state of being pressed after installation.

[0067] Further, as shown in Figure 12 , the front side wall of the special-shaped sealing ring is provided with a first axial end portion that can abut against the first sealing ring 34 and the third sealing ring 37. The rear side wall of the special-shaped sealing ring is provided with a second axial end portion that can abut against the second sealing ring 35 and the fourth sealing ring 38. In this way, the first axial end portion and the second axial end portion can limit the swing amplitude, thereby providing the first axial end portion and the second axial end portion as adjustment means, which is beneficial to optimizing the sealing performance. At the same time, the mutual influence between adjacent sealing rings is avoided.

[0068] In this example, the front and rear sides of the first sealing ring 8 and the second sealing ring 9 are both provided with washers 41, and the sealing ring is accommodated between the two washers 41. The first axial end portion and the second axial end portion are provided by the washers 41.

[0069] Further, as shown in Figure 12As shown, for the case with the gasket 41, the first axial position-limiting member 28 serves as the gasket 41 of the outermost first sealing ring 8, and the second axial position-limiting member 29 serves as the gasket 41 of the outermost second sealing ring 9. In this way, the structure is more conducive to simplification.

[0070] In understanding the present application, if necessary, the above structure can refer to other embodiments / appendices Figure 1 And it is understood that here is not redundant.

[0071] The above-described is only the embodiment of the present application for illustration, therefore, equivalent changes or modifications made to the structure, features and principles described in the scope of the present application patent protection range, are included in the scope of the present application patent protection range.

Claims

1. A high-reliability direct-impact continuous ice evaporator comprising a drum (1) having a peripheral wall for ice formation, characterized in that: The application also comprises a refrigerant pipe (2) for circulating refrigerant, which is made of a whole continuous pipe or multiple pipes and extends from one end of the drum (1) to the other end. The refrigerant pipe (2) is sequentially divided into a first section (3), an inner part (4) and a second section (5) from one end of the drum (1) to the other end. The first section (3) is rotatably sleeved with the end of one end of the drum (1), the second section (5) is rotatably sleeved with the end of the other end of the drum (1), and the inner part (4) is located in the drum (1). The inner part (4) is divided into 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 part (4) is sequentially divided into the first part (4.1) and the second part (4.2) along the axial direction. The first section (3) and the first part (4.1) form an inlet channel (22), the second part (4.2) and the second section (5) 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 refrigerant is directly sprayed into the drum (1) through the inlet channel (22) and the outlet (24), and then is discharged from the drum (1) through the discharge outlet (25) after being heated and vaporized. The end of one end of the drum (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 drum (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 for supporting the drum (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), 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 drum (1) rotate together, the assembly composed of the first support part (6), the second support part (7) and the drum (1) rotates relative to the refrigerant pipe (2), and the refrigerant pipe (2) does not rotate. The first sealing ring (8) and the second sealing ring (9) are both special-shaped sealing rings, which comprise an O-shaped body, the outer peripheral wall of the O-shaped body is provided with a first annular groove (33) which is radially recessed, the outer peripheral wall of the O-shaped body forms a first sealing ring (34) and a second sealing ring (35) on the front side and the rear side of the first annular groove (33) respectively, the inner peripheral wall of the O-shaped body is provided with a second annular groove (36) which is radially recessed, the inner peripheral wall of the O-shaped body forms a third sealing ring (37) and a fourth sealing ring (38) on the front side and the rear side of the second annular groove (36) respectively, the inner peripheral wall of the first support part (6) and the second support part (7) is sealed with the first sealing ring (34) and the second sealing ring (35), and the outer peripheral wall of the first section (3) and the second section (5) is sealed with the third sealing ring (37) and the fourth sealing ring (38).

2. A high-reliability direct-impact endless ice evaporator according to claim 1, characterized in that: The front side wall of the special-shaped sealing ring is further provided with an axially recessed third annular groove (39), the rear side wall of the special-shaped sealing ring is further provided with an axially recessed fourth annular groove (40), the first annular groove (33) and the third annular groove (39) are a first sealing ring (34), the first annular groove (33) and the fourth annular groove (40) are a second sealing ring (35), the second annular groove (36) and the third annular groove (39) are a third sealing ring (37), and the second annular groove (36) and the fourth annular groove (40) are a fourth sealing ring (38).

3. A high-reliability direct-impact fibrous ice evaporator according to claim 1 or 2, characterized in that: The front side wall of the special-shaped sealing ring is provided with a first axial end portion capable of abutting against the first sealing ring (34) and the third sealing ring (37), and the rear side wall of the special-shaped sealing ring is provided with a second axial end portion capable of abutting against the second sealing ring (35) and the fourth sealing ring (38).

4. A high-reliability direct-impact fibrous ice evaporator according to claim 2, characterized in that: The first annular groove (33), the second annular groove (36), the third annular groove (39) and the fourth annular groove (40) are all arc-shaped grooves in cross section.

5. A high-reliability direct-impact fibrous ice evaporator according to claim 1, characterized in that: The front and rear sides of the first sealing ring (8) and the second sealing ring (9) are both provided with a gasket (41), and the sealing ring is accommodated between the two gaskets (41).

6. A high-reliability direct-impact endless ice evaporator according to claim 1 or 5, characterized in that: The outer side end of the first support portion (6) is connected with a first end cover (13), the first section (3) passes through the first end cover (13) outward and is rotatably matched, and / or the outer side end of the second support portion (7) is connected with a second end cover (14), the second section (5) passes through the second end cover (14) outward and is rotatably matched.

7. A high-reliability direct-impact fibrous ice evaporator according to claim 6, characterized in that: The first section (3) is provided with a first limiting step (10), the second section (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 support portion (6), the first limiting step (10) constitutes a first axial limiting, after the second end cover (14) is connected with the outer side end of the second support portion (7), the second limiting step (11) constitutes a second axial limiting, and 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 first axial limiting.

8. A high-reliability direct-impact fibrous ice evaporator according to claim 7, characterized in that: The annular space between the first support portion (6) and the first section (3) is further provided with a first axial limiting member (28), the first axial limiting member (28) is used for limiting the axial movement of the first sealing ring (8), the annular space between the second support portion (7) and the second section (5) is further provided with a second axial limiting member (29), and the second axial limiting member (29) is used for limiting the axial movement of the second sealing ring (9).

9. A high-reliability direct-impact fibrous ice evaporator according to claim 8, characterized in that: For the case with the gasket (41), the first axial limiting member (28) is the gasket (41) of the outermost first sealing ring (8), and the second axial limiting member (29) is the gasket (41) of the outermost 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-reliability direct-injection type continuous-ice evaporator of any one of claims 1 to 9.

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