Evaporative cooling device of snowflake ice machine

Abstract

The present application relates to the technical field of ice flake machine, and particularly to an evaporative cooling device of ice flake machine, which comprises a refrigerant conveying sleeve, a hollow adapter and an evaporator roller, one end of the hollow adapter is fixedly connected with the evaporator roller, and the other end of the hollow adapter is fixedly provided with a sealing assembly, the sealing assembly comprises a first sealing ring and a second sealing ring, the first sealing ring is sleeved on the hollow adapter through a bearing, the second sealing ring is fixedly connected to the outer side surface of the first sealing ring, and the first sealing ring and the second sealing ring are sealingly arranged; the refrigerant conveying sleeve comprises a refrigerant inlet pipe and a refrigerant return pipe, the gas inlet end of the refrigerant return pipe extends into the evaporator roller after penetrating through the second sealing ring and the hollow adapter, and the second sealing ring and the refrigerant return pipe are sealingly arranged; the outer diameter of the refrigerant inlet pipe is smaller than the inner diameter of the refrigerant return pipe, and the refrigerant inlet pipe is sleeved in the refrigerant return pipe.

Description

Technical Field

[0001] The invention relates to the technical field of flake ice machines, in particular to an evaporative cooling device of a flake ice machine. Background Art

[0002] A slush machine rapidly freezes liquid into ice and then uses a blade to cut it into fine, delicate slush, allowing for immediate consumption. The main components of a slush machine are a refrigeration unit and a snowmaking unit. The snowmaking unit typically includes a liquid bottle, a liquid feeder, a drive motor, an evaporator cylinder, and a snowmaking blade assembly, with the evaporator cylinder being the core component.

[0003] When the evaporator cylinder is working, it is driven to rotate by the driving motor. At the same time, the refrigeration compressor inputs the high-temperature and high-pressure liquid refrigerant into the evaporator cylinder through the refrigerant inlet passage. The gaseous refrigerant after the evaporator cylinder absorbs heat and evaporates is transported back to the refrigeration compressor through the refrigerant return passage. After being compressed, it becomes a high-temperature and high-pressure liquid refrigerant again, and the cycle works. Due to the rapid change of the thermodynamic working conditions inside the evaporator cylinder, the temperature of the outer surface of the evaporator cylinder will drop rapidly to below -30℃, causing the liquid to quickly freeze and hang on the surface of the evaporator cylinder.

[0004] Commercially available flake ice machines typically seal the refrigerant using a sealing assembly installed on one side of the evaporator cylinder. For example, Chinese invention patent publication number CN217275001U discloses an evaporator drum for a flake ice machine, comprising an evaporator drum body. A drive shaft is fixed to the center of the left side of the evaporator drum body, and a right bearing seat is mounted to the center of the right side of the evaporator drum body. A deep groove ball bearing with dust covers on both sides is embedded in the right side of the right bearing seat. The inner ring of the deep groove ball bearing with dust covers is equipped with an air intake copper rod, and an A-type elastic retaining ring is installed on the right side of the deep groove ball bearing with dust covers. This existing technology still has structural defects: 1) An elastic retaining ring is used through the A-type hole to seal the inner hole on the right side of the right bearing seat and the outer wall of the air intake copper rod, and its sealing effect is not ideal; 2) The refrigerant return air pipeline and the refrigerant air intake pipeline are arranged in parallel at intervals inside the air intake copper rod, which occupies the installation space and has low space utilization. Moreover, since the refrigerant air intake pipeline dissipates heat and the refrigerant return air pipeline absorbs heat, the refrigerant return air pipeline and the refrigerant air intake pipeline are arranged in parallel at intervals, the energy efficiency utilization rate is low, and the heat dissipation effect is not ideal.

[0005] Therefore, there is still room for improvement in the prior art. Summary of the Invention

[0006] In view of the defects of the prior art, the present invention provides an evaporative cooling device for a snowflake ice machine, which effectively solves the problems in the prior art.

[0007] In order to achieve the above object, the technical solutions applied by the present invention are as follows:

[0008] An evaporative cooling device for a snowflake ice machine includes a refrigerant delivery sleeve, a hollow connector and an evaporator roller. One end of the hollow connector is fixedly connected to the evaporator roller, and the other end of the hollow connector is fixed with a sealing assembly. The sealing assembly includes a first sealing ring and a second sealing ring. The first sealing ring is arranged on the hollow connector through a bearing sleeve, and the second sealing ring is fixedly connected to the outer surface of the first sealing ring. A sealing arrangement is provided between the first sealing ring and the second sealing ring; the refrigerant delivery sleeve includes a refrigerant liquid inlet pipe and a refrigerant return pipe. The air inlet end of the refrigerant return pipe passes through the second sealing ring and the hollow connector and then extends into the evaporator roller. A seal is provided between the second sealing ring and the refrigerant return pipe. Setting; the outer diameter of the refrigerant inlet pipe is smaller than the inner diameter of the refrigerant return pipe, and the refrigerant inlet pipe is inserted into the refrigerant return pipe; a hollow nut is embedded in the second sealing ring, and the air inlet end of the refrigerant return pipe passes through the hollow nut and the hollow connector and extends into the evaporator roller, and a seal is set between the hollow nut and the refrigerant return pipe; a first sealing ring is provided between the first sealing ring and the hollow connector, a second sealing ring is provided between the second sealing ring and the first sealing ring, and a third sealing ring is provided between the hollow nut and the second sealing ring; a mounting seat is provided on the evaporator roller, one end of the hollow connector is fixedly connected to the mounting seat, and a fourth sealing ring is provided between the hollow connector and the mounting seat.

[0009] According to the above scheme, a first guide mounting groove is provided on the side of the first sealing ring close to the second sealing ring, and the first sealing ring is installed in the first guide mounting groove; a second guide mounting groove is provided on the side of the second sealing ring close to the first sealing ring, and the second sealing ring is installed in the second guide mounting groove; a third guide mounting groove is provided on the outer wall of the hollow nut, and the third sealing ring is installed in the third guide mounting groove.

[0010] According to the above solution, a fourth guide installation groove is provided at one end of the hollow connector close to the mounting seat, and the fourth sealing ring is installed in the fourth guide installation groove.

[0011] According to the above solution, the second sealing ring is provided with a first limiting step on the side close to the first sealing ring for limiting the position with the end of the hollow connecting piece, and the second sealing ring is provided with a second limiting step on the side close to the hollow nut for limiting the position with the hollow nut.

[0012] According to the above scheme, the inner hole of the first sealing ring is provided with a bearing accommodating groove for accommodating the bearing, and the two sides of the bearing are limited by the first retaining spring and the second retaining spring respectively. A first retaining spring installation groove is provided on the outer wall of the hollow connecting piece, and the first retaining spring is clamped in the first retaining spring installation groove. A second retaining spring installation groove is provided at one end of the first sealing ring close to the hollow connecting piece, and the second retaining spring is clamped in the second retaining spring installation groove.

[0013] According to the above scheme, the air inlet end of the refrigerant return pipe is opened, the air outlet end of the refrigerant return pipe is provided with a sealing surface, the sealing surface is provided with an inner hole, the air outlet of the refrigerant return pipe is provided on the pipe wall of the air outlet end, the liquid inlet end and the liquid outlet end of the refrigerant inlet pipe are opened, the liquid inlet end of the refrigerant inlet pipe passes through the inner hole of the sealing surface and extends out of the sealing surface, and a seal is provided between the inner wall of the inner hole and the outer wall of the refrigerant inlet pipe.

[0014] According to the above scheme, the liquid outlet end of the refrigerant liquid inlet pipe is extended out of the air inlet end of the refrigerant return pipe, and the part of the liquid outlet end of the refrigerant liquid inlet pipe extending out of the air inlet end of the refrigerant return pipe is bent so that the end face of the liquid outlet end of the refrigerant liquid inlet pipe and the end face of the air inlet end of the refrigerant return pipe are arranged at an angle.

[0015] According to the above scheme, it also includes a three-way pipe, on which a first pipeline, a second pipeline and a third pipeline are provided. The second pipeline and the third pipeline are arranged in a straight line. The outlet end of the refrigerant return pipe passes through the third pipeline and is fixed in the second pipeline. The pipe walls of the second pipeline and the third pipeline are sealed with the outer wall of the refrigerant return pipe, and the outlet of the refrigerant return pipe is connected to the first pipeline.

[0016] According to the above scheme, the refrigerant return air pipe includes a third straight pipe section, a third curved pipe section and a fourth straight pipe section fixedly connected in sequence, the fourth straight pipe section is provided with an air inlet, and the air outlet is provided on the third straight pipe section; the refrigerant liquid inlet pipe includes a first straight pipe section, a second curved pipe section, a second straight pipe section and a first curved pipe section fixedly connected in sequence, the first straight pipe section is provided with a liquid inlet, and the first curved pipe section is provided with a liquid outlet; the first straight pipe section is passed through the third straight pipe section, the second curved pipe section is passed through the third curved pipe section, and the second straight pipe section is passed through the fourth straight pipe section.

[0017] Beneficial effects of the present invention:

[0018] 1) The first sealing ring is used to seal the hollow connector and the first sealing ring; the second sealing ring is used to seal the first and second sealing rings; the third sealing ring is used to seal the hollow nut and the second sealing ring; the fourth sealing ring is used to seal the evaporator roller and the hollow connector; and the inner wall of the inner hole of the hollow nut is sealed with the outer wall of the refrigerant return pipe. This provides a better sealing effect and can effectively prevent refrigerant leakage in the evaporator roller.

[0019] 2) The refrigerant liquid inlet pipe is arranged inside the refrigerant return pipe, which saves the installation space of the refrigerant delivery casing and rationally utilizes the internal space of the refrigerant return pipe, with high space utilization rate. Since the refrigerant liquid inlet pipe dissipates heat and the refrigerant return pipe absorbs heat, arranging the refrigerant liquid inlet pipe inside the refrigerant return pipe helps to dissipate heat from the refrigerant liquid inlet pipe. The heat is taken away by the cold air in the refrigerant return pipe, which has high energy efficiency and more ideal heat dissipation effect. The layout of the refrigerant delivery casing is more beautiful and reduces the number of lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the overall structure of the present invention;

[0021] Figure 2 Is a sectional view of the overall structure of the present invention;

[0022] Figure 3 yes Figure 2 A magnified view of position A in the middle;

[0023] Figure 4 This is a cross-sectional view of the hollow connector and the sealing assembly assembly of the present invention;

[0024] Figure 5 Is a cross-sectional view of the second sealing ring of the present invention;

[0025] Figure 6 This is a schematic diagram of the refrigerant delivery casing of the present invention;

[0026] Figure 7 This is the refrigerant delivery sleeve and evaporator roller assembly diagram of the present invention;

[0027] Figure 8 yes Figure 7 Enlarged view of position B in the middle;

[0028] Figure 9 Is the present invention, the liquid inlet passage and the outlet passage working state diagram;

[0029] Figure 10 This is a diagram of the refrigerant return pipe structure of the present invention;

[0030] Figure 11 It is a structural diagram of the refrigerant liquid inlet pipe of the present invention.

[0031] In the figure: 1. First sealing ring; 2. Second sealing ring; 3. Third sealing ring; 4. Fourth sealing ring; 5. First retaining spring; 6. Bearing; 7. Second retaining spring; 10. Refrigerant delivery sleeve; 11. Refrigerant liquid inlet pipe; 111. Liquid inlet passage; 112. First curved pipe section; 113. First straight pipe section; 114. Second curved pipe section; 115. Second straight pipe section; 116. Liquid inlet end; 117. Liquid outlet end; 12. Refrigerant return pipe; 121. Air outlet; 122. Air outlet passage; 123. Third straight pipe section; 124. Third curved pipe section; 125. Fourth straight pipe section; 126. Air inlet end; 127. Air outlet end; 13. Tee; 131, first pipeline; 132, second pipeline; 133, third pipeline; 20, sealing assembly; 21, first sealing ring; 211, first guide mounting groove; 212, bearing accommodating groove; 213, second retaining spring mounting groove; 22, second sealing ring; 221, second guide mounting groove; 222, first limiting step; 223, second limiting step; 23, hollow nut; 231, third guide mounting groove; 24, bolt; 30, hollow connector; 301, fourth guide mounting groove; 302, first retaining spring mounting groove; 40, evaporator roller; 41, mounting seat; 50, driving shaft; 60, blocking ring. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is described below with reference to the accompanying drawings and embodiments.

[0033] like Figures 1 to 11As shown, the evaporative cooling device of the snow ice machine described in the present invention includes a refrigerant delivery sleeve 10, a hollow connector 30 and an evaporator roller 40, one end of the hollow connector 30 is fixedly connected to the evaporator roller 40 (in actual application, a driving shaft 50 is fixed to the side of the evaporator roller 40 away from the hollow connector 30, and the driving shaft 50 is used to connect the driving component, and the driving component drives the driving shaft 50 to drive the evaporator roller 40 to rotate), and the other end of the hollow connector 30 is fixed with a sealing component 20, and the sealing component 20 includes a first sealing ring 21 and a second sealing ring 22. The first sealing ring 21 is sleeved on the hollow connector 30 through a bearing 6, and the second sealing ring 22 is fixedly connected to the outer surface of the first sealing ring 21 (it should be noted that the side of the first sealing ring 21 close to the evaporator roller 40 is the inner side, and the first sealing ring 21 is fixed to the outer surface of the first sealing ring 21 (it should be noted that the side of the first sealing ring 21 close to the evaporator roller 40 is the inner side, and the first sealing ring 21 is fixed to the inner side). The side of the ring 21 close to the second sealing ring 22 is the outer side), a seal is set between the first sealing ring 21 and the second sealing ring 22; more specifically, a hollow nut 23 is embedded in the second sealing ring 22, and the air inlet end 126 of the refrigerant return pipe 12 passes through the hollow nut 23 and the hollow connector 30 and extends into the evaporator roller 40, and a seal is set between the inner wall of the inner hole of the hollow nut 23 and the outer wall of the refrigerant return pipe 12; a first sealing ring 1 is provided between the first sealing ring 21 and the hollow connector 30, a second sealing ring 2 is provided between the second sealing ring 22 and the first sealing ring 21, and a third sealing ring 3 is provided between the hollow nut 23 and the second sealing ring 22; a mounting seat 41 is provided on the evaporator roller 40, one end of the hollow connector 30 is fixedly connected to the mounting seat 41, and a fourth sealing ring 4 is provided between the hollow connector 30 and the mounting seat 41. After the present invention is assembled, the first sealing ring 1 is located between the first sealing ring 21 and the outer wall of the hollow connector 30 to achieve sealing between the hollow connector 30 and the first sealing ring 21; the second sealing ring 2 is located between the second sealing ring 22 and the first sealing ring 21 to achieve sealing between the first sealing ring 21 and the second sealing ring 22; the third sealing ring 3 is located between the hollow nut 23 and the second sealing ring 22 to achieve sealing between the hollow nut 23 and the second sealing ring 22, and the inner wall of the inner hole of the hollow nut 23 is in contact with the refrigerant return pipe. 12 is sealed between the outer walls, and its sealing effect is better, which can effectively prevent the refrigerant in the evaporator roller 40 from leaking, thereby effectively solving the problem of unsatisfactory sealing effect in the prior art; wherein, after the hollow connector 30 described in the present invention is fixedly connected to the mounting seat 41, the fourth sealing ring 4 is used to seal the outer wall of the hollow connector 30 and the inner wall of the inner hole of the mounting seat 41, and its sealing effect is good, which can effectively prevent the refrigerant in the evaporator roller 40 from leaking from between the outer wall of the hollow connector 30 and the inner wall of the inner hole of the mounting seat 41.

[0034] In this embodiment, a first guide installation groove 211 is provided on a side of the first sealing ring 21 adjacent to the second sealing ring 22, and the first sealing ring 1 is installed in the first guide installation groove 211. The present invention utilizes the first guide installation groove 211 for guiding the installation of the first sealing ring 1, making assembly more convenient and quicker. After assembly, the inner wall of the inner hole of the first sealing ring 1 abuts against the outer wall of the hollow connector 30, and the two sides of the first sealing ring 1 abut against the first sealing ring 21 and the second sealing ring 22, respectively. In other words, the first sealing ring 1 is located between the first sealing ring 21, the second sealing ring 22, and the outer wall of the hollow connector 30.

[0035] In this embodiment, a second guide groove 221 is provided on a side of the second sealing ring 22 adjacent to the first sealing ring 21, and the second sealing ring 2 is installed in the second guide groove 221. The present invention utilizes the second guide groove 221 for guiding the installation of the second sealing ring 2, making assembly more convenient and quick. After assembly, the two sides of the second sealing ring 2 abut against the first sealing ring 21 and the second sealing ring 22, respectively.

[0036] In this embodiment, a third guide groove 231 is provided on the outer wall of the hollow nut 23, and the third sealing ring 3 is installed in the third guide groove 231. The third guide groove 231 is used to guide the installation of the third sealing ring 3, making assembly more convenient and quick. After assembly, the outer wall of the third sealing ring 3 abuts the inner wall of the inner hole of the second sealing ring 22.

[0037] In this embodiment, a fourth guide groove 301 is defined at one end of the hollow connector 30, proximate the mounting seat 41, and the fourth sealing ring 4 is mounted within the fourth guide groove 301. The present invention utilizes the fourth guide groove 301 to guide the installation of the fourth sealing ring 4, making assembly more convenient and quick. After assembly, the outer wall of the fourth sealing ring 4 abuts the inner wall of the inner hole of the mounting seat 41.

[0038] In this embodiment, a first limiting step 222 is provided on the side of the second sealing ring 22 proximate to the first sealing ring 21 for abutting against the end of the hollow connector 30. A second limiting step 223 is provided on the side of the second sealing ring 22 proximate to the hollow nut 23 for abutting against the hollow nut 23. After assembly of the present invention, the end of the hollow connector 30 passes through the first sealing ring 21 and abuts against the first limiting step 222, and the hollow nut 23 abuts against the second limiting step 223.

[0039] In this embodiment, the inner hole of the first sealing ring 21 is provided with a bearing accommodating groove 212 for accommodating the bearing 6, and the two sides of the bearing 6 are limited by the first retaining spring 5 and the second retaining spring 7 respectively. The outer wall of the hollow connecting piece 30 is provided with a first retaining spring installation groove 302, and the first retaining spring 5 is clamped in the first retaining spring installation groove 302. The end of the first sealing ring 21 close to the hollow connecting piece 30 is provided with a second retaining spring installation groove 213, and the second retaining spring 7 is clamped in the second retaining spring installation groove 213. After the assembly of the present invention is completed, the inner hole of the bearing 6 is sleeved on the outer wall of the hollow connecting piece 30, and the outer wall of the bearing 6 abuts against the inner wall of the inner hole of the first sealing ring 21; the present invention can make the first sealing ring 21 rotate relative to the hollow connecting piece 30 through the bearing 6, and the first retaining spring 5 and the second retaining spring 7 can limit the bearing 6 to prevent axial displacement of the bearing 6; the first retaining spring mounting groove 302 is used for guiding installation of the first retaining spring 5; the second retaining spring mounting groove 213 is used for guiding installation of the second retaining spring 7; the assembly is more convenient and quick.

[0040] It should be noted that the axes of the mounting seat 41, the hollow connector 30, the first sealing ring 21, the second sealing ring 22 and the hollow nut 23 are on the same straight line, and the mounting seat 41, the hollow connector 30, the first sealing ring 21, the second sealing ring 22 and the hollow nut 23 are all provided with through holes for facilitating the passage of the refrigerant delivery sleeve 10.

[0041] In this embodiment, the refrigerant delivery sleeve 10 includes a refrigerant liquid inlet pipe 11 and a refrigerant return air pipe 12. The air inlet end 126 of the refrigerant return air pipe 12 passes through the second sealing ring 22 and the hollow connecting piece 30 and extends into the evaporator roller 40. The second sealing ring 22 and the refrigerant return air pipe 12 are sealed; the outer diameter of the refrigerant liquid inlet pipe 11 is smaller than the inner diameter of the refrigerant return air pipe 12, and the refrigerant liquid inlet pipe 11 is passed through the refrigerant return air pipe 12. The present invention arranges the refrigerant liquid inlet pipe 11 in the refrigerant return air pipe 12, which saves the installation space of the refrigerant delivery sleeve and rationally utilizes the internal space of the refrigerant return air pipe 12, with high space utilization rate; it should be noted that, since the refrigerant liquid inlet pipe 11 dissipates heat and the refrigerant return air pipe 12 absorbs heat, arranging the refrigerant liquid inlet pipe 11 in the refrigerant return air pipe 12 helps the refrigerant liquid inlet pipe 11 to dissipate heat, and the heat is taken away by the cold air of the refrigerant return air pipe 12, so the energy efficiency utilization rate is high and the heat dissipation effect is more ideal.

[0042] More specifically, the liquid inlet of the refrigerant liquid inlet pipe 11 of the present invention is connected to the liquid outlet of the refrigeration compressor, and the air outlet 121 of the refrigerant return pipe 12 is connected to the air inlet of the refrigeration compressor; more specifically, a liquid inlet passage 111 is provided in the refrigerant liquid inlet pipe 11, and the refrigerant is sent into the evaporator cylinder 40 through the liquid inlet passage 111, absorbs heat and evaporates into a gaseous refrigerant, so as to achieve the purpose of rapidly cooling the evaporator cylinder 40; an air outlet passage 122 is provided between the outer wall of the refrigerant liquid inlet pipe 11 and the inner wall of the refrigerant return pipe 12, and the gaseous refrigerant returns to the refrigeration compressor through the air outlet passage 122 and becomes a liquid refrigerant after being compressed.

[0043] In this embodiment, the air inlet end 126 of the refrigerant return pipe 12 is open, the air outlet end 127 of the refrigerant return pipe 12 is provided with a sealing surface 60, the sealing surface 60 is provided with an inner hole, the air outlet 121 of the refrigerant return pipe 12 is provided on the pipe wall of the air outlet end 127, the liquid inlet end 116 and the liquid outlet end 117 of the refrigerant liquid inlet pipe 11 are open, the liquid inlet end 116 of the refrigerant liquid inlet pipe 11 passes through the inner hole of the sealing surface 60 and extends out of the sealing surface 60, and a seal is provided between the inner wall of the inner hole and the outer wall of the refrigerant liquid inlet pipe 11. This arrangement can effectively realize the separate arrangement of the liquid inlet end 116 of the refrigerant liquid inlet pipe 11 and the air outlet end 127 of the refrigerant return pipe 12, making assembly more convenient.

[0044] In this embodiment, the liquid outlet end 117 of the refrigerant liquid inlet pipe 11 is arranged to extend out of the air inlet end 126 of the refrigerant return pipe 12. The portion of the liquid outlet end 117 of the refrigerant liquid inlet pipe 11 extending out of the air inlet end 126 of the refrigerant return pipe 12 is bent so that the end surface of the liquid outlet end 117 of the refrigerant liquid inlet pipe 11 and the end surface of the air inlet end 126 of the refrigerant return pipe 12 are arranged at an angle. This arrangement can avoid interference between the liquid outlet end 117 of the refrigerant liquid inlet pipe 11 when discharging liquid and the air inlet end 126 of the refrigerant return pipe 12 when taking air.

[0045] In this embodiment, the present invention also includes a three-way pipe 13, on which a first pipeline 131, a second pipeline 132 and a third pipeline 133 are provided. The second pipeline 132 and the third pipeline 133 are arranged in a straight line. The outlet end 127 of the refrigerant return pipe 12 passes through the third pipeline 133 and is fixed in the second pipeline 132. The pipe walls of the second pipeline 132 and the third pipeline 133 are sealed with the outer wall of the refrigerant return pipe 12. The outlet 121 of the refrigerant return pipe 12 is connected to the first pipeline 131. More specifically, the first pipeline 131 is connected to the air inlet of the refrigeration compressor; the end plane of the second pipeline 132 is flush with the end plane of the outlet end 127 of the refrigerant return pipe 12, and the appearance of the assembled refrigerant delivery sleeve is more beautiful.

[0046] In this embodiment, the refrigerant return pipe 12 is L-shaped and includes a third straight pipe section 123, a third curved pipe section 124, and a fourth straight pipe section 125 that are fixedly connected in sequence. The fourth straight pipe section 125 is provided with an air inlet, and the air outlet 121 is provided on the third straight pipe section 123. The refrigerant liquid inlet pipe 11 is L-shaped and includes a first straight pipe section 113, a second curved pipe section 114, a second straight pipe section 115, and a first curved pipe section 112 that are fixedly connected in sequence. The first straight pipe section 113 is provided with a liquid inlet, and the first curved pipe section 112 is provided with a liquid outlet. More specifically, the first straight pipe section 113 of the present invention is passed through the third straight pipe section 123, the second curved pipe section 114 is passed through the third curved pipe section 124, and the second straight pipe section 115 is passed through the fourth straight pipe section 125. During assembly, the assembly is performed in sections, which is convenient and quick.

[0047] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. An evaporative cooling device for a flake ice machine, comprising a refrigerant delivery sleeve, a hollow connector, and an evaporator drum, wherein one end of the hollow connector is fixedly connected to the evaporator drum, and the other end of the hollow connector is fixedly secured to a sealing assembly, characterized in that: The sealing assembly includes a first sealing ring and a second sealing ring, the first sealing ring is provided on the hollow connector through a bearing sleeve, the second sealing ring is fixedly connected to the outer surface of the first sealing ring, and a sealing arrangement is provided between the first sealing ring and the second sealing ring; The refrigerant delivery sleeve includes a refrigerant liquid inlet pipe and a refrigerant return pipe, the inlet end of the refrigerant return pipe passes through the second sealing ring and the hollow connector and extends into the evaporator roller, and a seal is set between the second sealing ring and the refrigerant return pipe; The outer diameter of the refrigerant liquid inlet pipe is smaller than the inner diameter of the refrigerant gas return pipe, and the refrigerant liquid inlet pipe is arranged inside the refrigerant gas return pipe; The second sealing ring is embedded with a hollow nut, the air inlet end of the refrigerant return pipe passes through the hollow nut and the hollow connector and extends into the evaporator drum, and a seal is set between the inner wall of the inner hole of the hollow nut and the outer wall of the refrigerant return pipe; A first sealing ring is provided between the first sealing ring and the hollow connecting piece, a second sealing ring is provided between the second sealing ring and the first sealing ring, and a third sealing ring is provided between the hollow nut and the second sealing ring; A mounting seat is provided on the evaporator roller, one end of the hollow connecting piece is fixedly connected to the mounting seat, and a fourth sealing ring is provided between the hollow connecting piece and the mounting seat.

2. The evaporative cooling device of the flake ice machine according to claim 1, characterized in that: A first guide mounting groove is provided on a side of the first sealing ring close to the second sealing ring, and the first sealing ring is installed in the first guide mounting groove; a second guide mounting groove is provided on a side of the second sealing ring close to the first sealing ring, and the second sealing ring is installed in the second guide mounting groove; a third guide mounting groove is provided on the outer wall of the hollow nut, and the third sealing ring is installed in the third guide mounting groove.

3. The evaporative cooling device of the flake ice machine according to claim 1, characterized in that: A fourth guide installation groove is provided on one end of the hollow connector close to the installation seat, and the fourth sealing ring is installed in the fourth guide installation groove.

4. The evaporative cooling device of a flake ice machine according to claim 1, characterized in that: The second sealing ring is provided with a first limiting step on the side close to the first sealing ring for limiting the position with the end of the hollow connector, and the second sealing ring is provided with a second limiting step on the side close to the hollow nut for limiting the position with the hollow nut.

5. The evaporative cooling device of the flake ice machine according to claim 1, characterized in that: The inner hole of the first sealing ring is provided with a bearing accommodating groove for accommodating a bearing, and the two sides of the bearing are limited by a first retaining spring and a second retaining spring respectively. A first retaining spring mounting groove is provided on the outer wall of the hollow connecting piece, and the first retaining spring is clamped in the first retaining spring mounting groove. A second retaining spring mounting groove is provided at one end of the first sealing ring close to the hollow connecting piece, and the second retaining spring is clamped in the second retaining spring mounting groove.

6. The evaporative cooling device of a flake ice machine according to claim 1, characterized in that: The air inlet end of the refrigerant return pipe is opened, the air outlet end of the refrigerant return pipe is provided with a sealing surface, the sealing surface is provided with an inner hole, the air outlet of the refrigerant return pipe is provided on the pipe wall of the air outlet end, the liquid inlet end and the liquid outlet end of the refrigerant inlet pipe are opened, the liquid inlet end of the refrigerant inlet pipe passes through the inner hole of the sealing surface and extends out of the sealing surface, and a seal is provided between the inner wall of the inner hole and the outer wall of the refrigerant inlet pipe.

7. The evaporative cooling device of a flake ice machine according to claim 6, characterized in that: The liquid outlet end of the refrigerant liquid inlet pipe extends out of the air inlet end of the refrigerant return pipe, and the part of the liquid outlet end of the refrigerant liquid inlet pipe extending out of the air inlet end of the refrigerant return pipe is bent so that the end face of the liquid outlet end of the refrigerant liquid inlet pipe and the end face of the air inlet end of the refrigerant return pipe are arranged at an angle.

8. The evaporative cooling device of a flake ice machine according to claim 6, characterized in that: It also includes a tee pipe, on which a first pipeline, a second pipeline and a third pipeline are provided. The second pipeline and the third pipeline are arranged in a straight line. The outlet end of the refrigerant return pipe passes through the third pipeline and is fixed in the second pipeline. The pipe walls of the second pipeline and the third pipeline are sealed with the outer wall of the refrigerant return pipe, and the outlet of the refrigerant return pipe is connected to the first pipeline.

9. The evaporative cooling device of a flake ice machine according to claim 6, characterized in that: The refrigerant return air pipe includes a third straight pipe section, a third curved pipe section and a fourth straight pipe section which are fixedly connected in sequence, the fourth straight pipe section is provided with an air inlet, and the air outlet is provided on the third straight pipe section; the refrigerant liquid inlet pipe includes a first straight pipe section, a second curved pipe section, a second straight pipe section and a first curved pipe section which are fixedly connected in sequence, the first straight pipe section is provided with a liquid inlet, and the first curved pipe section is provided with a liquid outlet; the first straight pipe section is passed through the third straight pipe section, the second curved pipe section is passed through the third curved pipe section, and the second straight pipe section is passed through the fourth straight pipe section.

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