Shell and tube evaporator for snow melting machine

Abstract

The present invention relates to the technical field of shell and tube evaporators, and in particular to a shell and tube evaporator for a snow melting machine, comprising a body and a coupling, a flow diversion assembly being provided on the body, two first rotating seats and two second rotating seats being respectively provided in the body, the eccentric positions of the first rotating seat and the second rotating seat being rotatably connected with an eccentric rotating seat, each eccentric rotating seat being fixedly connected to the coupling, a group of evaporation components distributed in a circular array being provided in the body, each evaporation component comprising two evaporation modules, the two evaporation modules being linked by a belt, and the evaporation module comprising a heat exchange tube rotatably connected to the eccentric rotating seat. The shell and tube evaporator changes the static structure of the traditional heat exchange tube into a dynamic structure, and when the evaporator is working, the heat exchange tube can rotate at a set speed on the one hand, and reciprocate along the axial direction on the other hand, and the heat exchange tube can also undergo eccentric revolution when reciprocating, thereby cyclically changing the position of the heat exchange tube in the body.

Description

Technical Field

[0001] The invention relates to the technical field of shell and tube evaporators, and in particular to a shell and tube evaporator for a snow melting machine. Background Art

[0002] There are two types of evaporators in existing snow melters. One is the copper tube type. The refrigerant phase change refrigeration process is completed in the copper tube, and the cold is then transferred to the evaporator tube. There are multiple layers of thermal resistance in the cold transfer process, resulting in heat loss, which affects heat exchange. At the same time, the cross-section of the copper tube is elliptical after forming, and the elliptical shape cannot fit perfectly with the inner surface of the evaporator tube, resulting in a loss of heat exchange area, which affects heat exchange. The other type is the full liquid type. The full liquid type also has an inner and outer tube structure, but there is no spiral piping. The advantage is that there is no loss of heat exchange area and a large amount of heat exchange. The disadvantage is that there is a problem of poor oil return. The oil cannot return to the compressor, which will cause oil accumulation in the evaporator. It affects heat exchange. At the same time, the heat exchange tubes in the existing evaporators mostly adopt a dynamic structure. Due to the limitations of the static structure, on the one hand, it is not convenient to increase the contact rate between the heat exchange element and the heat exchange fluid through the rotation, vibration displacement and yaw displacement of the heat exchange element, and then the heat exchange efficiency of the heat exchange element cannot be effectively improved. On the other hand, it is not convenient to reduce the adhesion rate of impurities in the heat exchange fluid on the heat exchange element and realize the automatic brushing of impurities in the heat exchange fluid on the heat exchange element, and then it is impossible to effectively maintain the high heat exchange area of ​​the heat exchange element and maintain the surface cleanliness of the heat exchange element. Based on this, we proposed a shell and tube evaporator for snow melting machine. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a shell and tube evaporator for a snow melting machine.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a shell and tube evaporator for a snow melting machine, including a body and a coupling, a flow dividing assembly is arranged on the body, two first rotating seats and two second rotating seats are respectively arranged in the body, the eccentric positions of the first rotating seat and the second rotating seat are both rotatably connected with an eccentric rotating seat, each of the eccentric rotating seats is fixedly connected to the coupling, a group of evaporation parts distributed in a circumferential array are arranged in the body, each of the evaporation parts includes two evaporation modules, the two evaporation modules are linked by a belt, and the evaporation module includes a converter rotatably connected to the eccentric rotating seat A heat pipe, wherein two groups of symmetrically arranged liquid-permeable holes are provided on the heat exchange tube, a flow control shaft is rotatably connected between the inner surfaces of the heat exchange tube, the flow control shaft and the heat exchange tube are coaxially and reversely linked through a differential module, a spiral flow control sheet is installed on the flow control shaft and at a position corresponding to the inner side of the heat exchange tube, a transmission component is installed on the device body, the first rotating seat, the second rotating seat and the eccentric rotating seat are all driven by the transmission component, a group of baffle modules are provided on the inner side of the device body, a reciprocating drive assembly is provided in the device body, the first rotating seat and the second rotating seat are driven by the reciprocating drive assembly and reciprocate along the axial direction of the device body.

[0005] Preferably, the flow diversion component includes an evaporant inlet pipe, an evaporant outlet pipe, a fluid inlet pipe and a fluid outlet pipe, the fluid inlet pipe and the fluid outlet pipe are both connected to the inner cavity of the device body, the inner wall of the device body and the position corresponding to the position between the two first rotary seats and the position between the two second rotary seats are provided with evaporant sub-cavities, the evaporant inlet pipe and the evaporant outlet pipe are respectively connected to the two evaporant sub-cavities, the positions of the two groups of liquid-permeable holes correspond to the positions of the two evaporant sub-cavities, and each of the liquid-permeable holes is connected to the evaporant sub-cavity at the corresponding position.

[0006] Preferably, guide sleeves are rotatably provided on the first rotating seat and the second rotating seat, and the guide sleeves are slidably connected to the device body.

[0007] Preferably, the differential module includes a central shaft rotatably connected to an eccentric rotating seat, an intermediate bevel gear is installed on the central shaft, side bevel gears are installed on the heat exchange tube and the flow control shaft, two side bevel gears are transmission-connected to the intermediate bevel gear, and the two side bevel gears are respectively arranged on both sides of the intermediate bevel gear.

[0008] Preferably, the transmission component includes a motor installed on the device body, a top shaft rotatably connected to the device body and a passive gear installed on the heat exchange tube, the output shaft end of the motor is equipped with a driving gear and is transmission-connected with a chain belt, an outer gear sleeve is installed on the first rotating seat, an upper gear is installed on the top shaft, the upper gear is transmission-connected with the outer gear sleeve, a bracket is installed on the eccentric rotating seat, a hollow shaft is rotatably provided on the coupling shaft, the hollow shaft is rotationally connected to the bracket, the hollow shaft is transmission-connected with the coupling shaft through an anti-linkage module, a transmission gear is installed on the hollow shaft, the transmission gear is transmission-connected with a passive gear on the heat exchange tube in the evaporation component, a side shaft is rotatably connected to the bracket, linkage gears are installed on the side shaft and the coupling shaft, the two linkage gears are meshed with each other, an inner gear sleeve is also installed on the side shaft, and the driving gear is transmission-connected with the inner gear sleeve.

[0009] Preferably, the reverse linkage module includes a reverse gear shaft rotatably connected to the inner wall of the bracket, the reverse gear shaft is equipped with reverse bevel teeth, the coupling shaft and the hollow shaft are both equipped with positive bevel teeth, the two positive bevel teeth are both transmission-connected to the reverse bevel teeth, and the two positive bevel teeth are respectively arranged on both sides of the reverse bevel teeth.

[0010] Preferably, the tooth length of the inner gear sleeve is 6 to 9 times the tooth length of the driving gear, and the tooth length of the outer gear sleeve is 6 to 9 times the tooth length of the upper gear.

[0011] Preferably, the baffle module includes an eccentric partition, which is provided with a plurality of brush sleeves adapted to be connected to the heat exchange tubes, and a liquid opening is provided on the eccentric partition, a sliding sleeve is installed at the axial position of the eccentric partition, a through groove with openings at both ends is fixedly provided inside the sliding sleeve, a linkage section is provided on the coupling shaft, the through groove is slidably connected to the linkage section, and the cross-sections of the through groove and the linkage section are both regular polygons, and a driven rotary plate is provided on the rotating sleeve of the eccentric partition, the driven rotary plate is coaxially arranged with the first rotary seat, and the driven rotary plate is rotatably connected to the device body.

[0012] Preferably, the number of the baffle modules is three, and the liquid-passing openings on the adjacent eccentric baffles are arranged in staggered mirror images.

[0013] Preferably, the reciprocating drive assembly includes a lower shaft rotatably connected to the device body, the lower shaft is connected to the chain belt transmission, the inner wall of the device body is rotatably connected to the reciprocating shaft, a group of half-tooth gears are installed on the reciprocating shaft, the reciprocating shaft and the lower shaft are both installed with bevel gears, the two bevel gears are meshed with each other, a reciprocating tooth plate is installed on a sliding sleeve, each of the half-tooth gears is transmission connected to the reciprocating tooth plate, and a return spring is installed between the device body and an adjacent sliding sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The shell and tube evaporator changes the static structure of the traditional heat exchange tube into a dynamic structure. When the evaporator is working, the heat exchange tube can rotate at a set speed on the one hand, and reciprocate along the axial direction on the other hand. When the heat exchange tube reciprocates, it can also revolve eccentrically, thereby cyclically changing the position of the heat exchange tube in the body. By realizing the above-mentioned dynamic motion effect, the heat exchange efficiency of the heat exchange element of the evaporator is effectively improved and the fouling rate of the heat exchange element in the evaporator is reduced.

[0016] 2. After the flow control shaft in the present invention rotates, it drives the spiral flow control plate to rotate. Through the rotation of the spiral flow control plate, on the one hand, the evaporant can flow in the heat exchange tube. On the other hand, through the rotation structure setting of the spiral flow control plate, the heat exchange time of the evaporant in the heat exchange tube can be effectively controlled, and then the heat exchange efficiency and heat exchange effect of the evaporator can be adjusted.

[0017] 3. In the present invention, during the reciprocating movement of the first rotary seat and the second rotary seat along the axial direction of the device body, the heat exchange tube slides back and forth on the inner wall of the brush sleeve. After the heat exchange tube slides back and forth on the inner wall of the brush sleeve, the fluid impurities or dirt adhered to the outer surface of the heat exchange tube are automatically cleaned and scraped off. By achieving the above-mentioned effects, the heat exchange efficiency and heat exchangeable area of ​​the heat exchange tube are maintained, and when the heat exchange tube performs heat exchange operation, the heat exchange tube rotates at a set speed. After the heat exchange tube rotates, the renewal contact rate between the heat exchange tube and the heat exchange medium is effectively improved. By improving the renewal contact rate between the heat exchange tube and the heat exchange medium, the heat exchange efficiency between the heat exchange tube and the heat exchange medium is effectively improved, thereby improving the use effect of the evaporator.

[0018] 4. In the present invention, when the motor is working, the half-tooth gear, the reciprocating tooth plate and the return spring are arranged to drive the first rotating seat and the second rotating seat to move back and forth along the axial direction of the device body. After the first rotating seat and the second rotating seat move back and forth, the heat exchange tube can move back and forth along the axial direction of the device body during the rotation process. The above-mentioned double-effect motion of the heat exchange tube can effectively reduce the adhesion rate of impurities in the heat exchange fluid on the outer surface of the heat exchange tube. The eccentric structure of the eccentric rotating seat can cyclically switch the position of the heat exchange tube in the device body, and make the heat exchange tube collide laterally with the heat exchange fluid. The heat exchange efficiency between the heat exchange fluid and the heat exchange tube can be effectively improved through the occurrence of the lateral collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a shell and tube evaporator for a snow melting machine of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of;

[0021] Figure 3 It is a schematic diagram of the structure of the top shaft and the lower shaft of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the guide sleeve and the heat exchange tube of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 6 It is a structural schematic diagram of the inverted gear shaft and the hollow shaft of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the spiral flow control sheet and the flow control shaft of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the guide sleeve and the eccentric swivel seat of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the brush cover and the liquid-passing opening of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of the liquid permeable hole and the heat exchange tube of the present invention;

[0029] Fig.11 For the present invention Fig.10 Schematic diagram of the local enlarged structure at point B in the middle.

[0030] 1. Body; 2. Coupling; 3. First rotating seat; 4. Second rotating seat; 5. Eccentric rotating seat; 6. Heat exchange tube; 7. Liquid permeable hole; 8. Flow control shaft; 9. Spiral flow control plate; 10. Evaporant outlet pipe; 11. Fluid inlet pipe; 12. Fluid outlet pipe; 13. Guide sleeve; 14. Middle shaft; 15. Motor; 16. Top shaft; 17. Passive gear; 18. Driving gear; 19. External gear sleeve; 20. Upper gear; 21. Bracket; 22. Hollow shaft; 23. Transmission gear; 24. Side shaft; 25. Linkage gear; 26. Internal gear sleeve; 27. Counter gear shaft; 28. Eccentric partition; 29. ​​Brush sleeve; 30. Liquid opening; 31. Sliding sleeve; 32. Linkage section; 33. Driven rotary plate; 34. Lower shaft; 35. Reciprocating shaft; 36. Half-tooth gear; 37. Reciprocating gear plate; 38. Return spring; 39. Evaporant inlet pipe. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1-Figure 11 A shell and tube evaporator for a snow melting machine is shown, comprising a body 1 and a coupling 2, a flow dividing assembly is arranged on the body 1, and two first rotary seats 3 and two second rotary seats 4 are arranged in the body 1;

[0033] A guide sleeve 13 is rotatably sleeved on the first rotating seat 3 and the second rotating seat 4, and the guide sleeve 13 is slidably connected to the body 1;

[0034] like Figure 1 and Figure 2 As shown, the flow splitter assembly includes an evaporant inlet pipe 39, an evaporant outlet pipe 10, a fluid inlet pipe 11 and a fluid outlet pipe 12, the fluid inlet pipe 11 and the fluid outlet pipe 12 are both connected to the inner cavity of the body 1, and the inner wall of the body 1 and the positions corresponding to the positions between the two first rotating seats 3 and the positions between the two second rotating seats 4 are provided with evaporant sub-cavities, and the evaporant inlet pipe 39 and the evaporant outlet pipe 10 are respectively connected to the two evaporant sub-cavities;

[0035] The eccentric positions of the first rotating seat 3 and the second rotating seat 4 are both rotatably connected with an eccentric rotating seat 5, and each eccentric rotating seat 5 is fixedly connected to the coupling shaft 2;

[0036] A group of evaporation components distributed in a circular array are arranged in the body 1, each evaporation component includes two evaporation modules, and the two evaporation modules are linked by a belt;

[0037] The evaporation module comprises a heat exchange tube 6 rotatably connected to the eccentric rotating seat 5, and the heat exchange tube 6 is provided with two groups of symmetrically arranged liquid permeable holes 7;

[0038] like Figure 1 and Figure 2 As shown, the positions of the two groups of liquid-permeable holes 7 correspond to the positions of the two evaporant chambers, respectively, and each liquid-permeable hole 7 is connected to the evaporant chamber at the corresponding position;

[0039] The evaporant entering the two evaporant chambers is conducted through the heat exchange tube 6. When the evaporant flows in the heat exchange tube 6, heat exchange operation is then performed;

[0040] like Figure 3-Figure 11 As shown, a flow control shaft 8 is rotatably connected between the inner surfaces of the heat exchange tube 6, and the flow control shaft 8 and the heat exchange tube 6 are coaxially and reversely linked through a differential module;

[0041] The differential module includes a central shaft 14 rotatably connected to the eccentric rotating seat 5, the central shaft 14 is equipped with a middle bevel gear, the heat exchange tube 6 and the flow control shaft 8 are both equipped with side bevel gears, the two side bevel gears are both transmission-connected to the middle bevel gear, and the two side bevel gears are respectively arranged on both sides of the middle bevel gear;

[0042] By setting the middle bevel gear and the two side bevel gears, the heat exchange tube 6 and the flow control shaft 8 can rotate coaxially and in opposite directions.

[0043] By coaxially rotating the heat exchange tube 6 and the flow control shaft 8 in opposite directions, the residual rate of D in the heat exchange tube 6 can be effectively reduced, thereby improving the cleanliness of the inner wall of the heat exchange tube 6;

[0044] A spiral flow control sheet 9 is installed on the flow control shaft 8 and at a position corresponding to the inner side of the heat exchange tube 6;

[0045] After the flow control shaft 8 rotates, the spiral flow control piece 9 is driven to rotate. Through the rotation of the spiral flow control piece 9, on the one hand, the evaporant can flow in the heat exchange tube 6, and on the other hand, through the rotation structure setting of the spiral flow control piece 9, the heat exchange time of the evaporant in the heat exchange tube 6 can be effectively controlled, and then the heat exchange efficiency and heat exchange effect of the evaporator can be adjusted;

[0046] The body 1 is provided with a transmission component, and the first rotating seat 3, the second rotating seat 4 and the eccentric rotating seat 5 are all driven by the transmission component;

[0047] like Figure 1-Figure 11As shown, the transmission component includes a motor 15 mounted on the body 1, a top shaft 16 rotatably connected to the body 1, and a passive gear 17 mounted on the heat exchange tube 6;

[0048] The output shaft end of the motor 15 is equipped with a driving gear 18 and is connected to a chain belt in a transmission manner. An outer gear sleeve 19 is installed on the first rotating seat 3, and an upper gear 20 is installed on the top shaft 16. The upper gear 20 is connected to the outer gear sleeve 19 in a transmission manner.

[0049] The tooth length of the outer gear sleeve 19 is 8 times the tooth length of the upper gear 20;

[0050] By setting the ratio of the tooth length of the outer gear sleeve 19 to the tooth length of the upper gear 20, the upper gear 20 can continuously drive the outer gear sleeve 19 during the process of the first rotating seat 3 and the second rotating seat 4 moving back and forth along the axial direction of the body 1;

[0051] A bracket 21 is installed on an eccentric rotating seat 5, a hollow shaft 22 is rotatably sleeved on the coupling 2, the hollow shaft 22 is rotatably connected to the bracket 21, and the hollow shaft 22 is transmission-connected to the coupling 2 through a reverse linkage module;

[0052] The reverse linkage module includes a reverse gear shaft 27 rotatably connected to the inner wall of the bracket 21, and a reverse bevel gear is installed on the reverse gear shaft 27. Both the coupling shaft 2 and the hollow shaft 22 are equipped with positive bevel gears, and the two positive bevel gears are both transmission-connected with the reverse bevel gears. The two positive bevel gears are respectively arranged on both sides of the reverse bevel gears.

[0053] By setting the counter-gear shaft 27, when the coupling 2 rotates, the hollow shaft 22 can coaxially and reversely link with the coupling 2. After the coupling 2 and the hollow shaft 22 coaxially and reversely link with each other, the heat exchange tube 6 is effectively driven.

[0054] A transmission gear 23 is mounted on the hollow shaft 22, and the transmission gear 23 is transmission-connected to a passive gear 17 on a heat exchange tube 6 in the evaporation component;

[0055] The bracket 21 is rotatably connected with a side shaft 24, and linkage gears 25 are installed on the side shaft 24 and the coupling shaft 2, and the two linkage gears 25 are meshed with each other;

[0056] An inner gear sleeve 26 is also mounted on the side shaft 24, and the driving gear 18 is transmission-connected to the inner gear sleeve 26;

[0057] The tooth length of the inner gear sleeve 26 is 8 times the tooth length of the driving gear 18;

[0058] By setting the tooth length ratio between the inner gear sleeve 26 and the driving gear 18, the driving gear 18 can continuously drive the inner gear sleeve 26 during the reciprocating movement of the first rotating seat 3 and the second rotating seat 4 along the axial direction of the body 1;

[0059] A group of baffle modules are provided on the inner side of the body 1, and the number of baffle modules is three;

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig. 9 As shown, the baffle module includes an eccentric baffle 28, and the eccentric baffle 28 is provided with a plurality of brush sleeves 29 adapted to be connected to the heat exchange tubes 6;

[0061] During the reciprocating movement of the first rotary seat 3 and the second rotary seat 4 along the axial direction of the body 1, the heat exchange tube 6 slides back and forth on the inner wall of the brush sleeve 29. After the heat exchange tube 6 slides back and forth on the inner wall of the brush sleeve 29, the fluid impurities or dirt adhering to the outer surface of the heat exchange tube 6 are automatically cleaned and scraped off. By achieving the above effect, the heat exchange efficiency and heat exchangeable area of ​​the heat exchange tube 6 are maintained.

[0062] When the heat exchange tube 6 performs heat exchange operation, the heat exchange tube 6 rotates at a set speed. After the heat exchange tube 6 rotates, the renewal contact rate between the heat exchange tube 6 and the heat exchange medium is effectively improved. By improving the renewal contact rate between the heat exchange tube 6 and the heat exchange medium, the heat exchange efficiency between the heat exchange tube 6 and the heat exchange medium is effectively improved, thereby improving the use effect of the evaporator.

[0063] The eccentric partition plate 28 is provided with a liquid opening 30, a sliding sleeve 31 is installed at the axial position of the eccentric partition plate 28, a through groove with two ends of openings is fixedly opened inside the sliding sleeve 31, a linkage section 32 is provided on the coupling shaft 2, the through groove is slidably connected with the linkage section 32, and the cross sections of the through groove and the linkage section 32 are both regular polygons;

[0064] When the first rotating seat 3 and the second rotating seat 4 rotate, the eccentric partition plate 28 rotates at the same speed as the first rotating seat 3 and the second rotating seat 4, and the flow direction of the heat exchange fluid and the residence time and flow direction of the heat exchange fluid in the body 1 are controlled by setting the liquid opening 30;

[0065] A driven rotary plate 33 is rotatably sleeved on the eccentric partition plate 28. The driven rotary plate 33 is coaxially arranged with the first rotary seat 3, and the driven rotary plate 33 is rotatably connected with the body 1.

[0066] The liquid-passing openings 30 on the two adjacent eccentric partitions 28 are arranged in a staggered mirror image;

[0067] A reciprocating drive assembly is provided in the body 1 , and the first rotating seat 3 and the second rotating seat 4 are driven by the reciprocating drive assembly to reciprocate along the axial direction of the body 1 .

[0068] The reciprocating drive assembly includes a lower shaft 34 rotatably connected to the body 1, the lower shaft 34 is connected to the chain belt transmission, the inner wall of the body 1 is rotatably connected to a reciprocating shaft 35, a group of half-tooth gears 36 are installed on the reciprocating shaft 35, and bevel gears are installed on the reciprocating shaft 35 and the lower shaft 34, the two bevel gears are meshed with each other, a reciprocating tooth plate 37 is installed on a sliding sleeve 31, each half-tooth gear 36 is connected to the reciprocating tooth plate 37, and a return spring 38 is installed between the body 1 and an adjacent sliding sleeve 31.

[0069] When the motor 15 is working, the first rotating seat 3 and the second rotating seat 4 are driven to move back and forth along the axis direction of the body 1 through the arrangement of the half-toothed gear 36, the reciprocating toothed plate 37 and the return spring 38;

[0070] After the first rotating seat 3 and the second rotating seat 4 are moved back and forth, the heat exchange tube 6 can then be moved back and forth along the axial direction of the device body 1 during the rotation process. The above-mentioned double-effect movement of the heat exchange tube 6 can effectively reduce the adhesion rate of impurities in the heat exchange fluid on the outer surface of the heat exchange tube 6. The eccentric structure of the eccentric rotating seat 5 can cyclically switch the position of the heat exchange tube 6 in the device body 1, and make the heat exchange tube 6 collide laterally with the heat exchange fluid. The occurrence of the lateral collision can effectively improve the heat exchange efficiency between the heat exchange fluid and the heat exchange tube 6.

[0071] The working principle of the present invention is: when the motor 15 is working, the half-tooth gear 36, the reciprocating tooth plate 37 and the return spring 38 are set to drive the first rotating seat 3 and the second rotating seat 4 to move back and forth along the axial direction of the device body 1. After the first rotating seat 3 and the second rotating seat 4 move back and forth, the heat exchange tube 6 can be moved back and forth along the axial direction of the device body 1 during the rotation process. The above-mentioned double-effect movement of the heat exchange tube 6 can effectively reduce the adhesion rate of impurities in the heat exchange fluid on the outer surface of the heat exchange tube 6. The eccentric structure of the eccentric rotating seat 5 can cyclically switch the position of the heat exchange tube 6 in the device body 1, and make the heat exchange tube 6 collide laterally with the heat exchange fluid. The occurrence of the lateral collision can effectively improve the heat exchange fluid and the heat exchange The heat exchange efficiency of the tube 6 is improved. During the reciprocating movement of the first rotary seat 3 and the second rotary seat 4 along the axial direction of the device body 1, the heat exchange tube 6 slides back and forth on the inner wall of the brush sleeve 29. After the heat exchange tube 6 slides back and forth on the inner wall of the brush sleeve 29, the fluid impurities or dirt adhered to the outer surface of the heat exchange tube 6 are automatically cleaned and scraped off. By achieving the above-mentioned effects, the heat exchange efficiency and heat exchange area of ​​the heat exchange tube 6 are maintained. When the heat exchange tube 6 performs heat exchange operation, the heat exchange tube 6 rotates at a set speed. After the heat exchange tube 6 rotates, the renewal contact rate between the heat exchange tube 6 and the heat exchange medium is effectively improved. By improving the renewal contact rate between the heat exchange tube 6 and the heat exchange medium, the heat exchange efficiency between the heat exchange tube 6 and the heat exchange medium is effectively improved, thereby improving the use effect of the evaporator.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A shell and tube evaporator for a snow melt machine, comprising a body (1) and a coupling (2), wherein a flow splitter assembly is provided on the body (1), characterized in that: Two first rotating seats (3) and two second rotating seats (4) are respectively arranged in the body (1); the eccentric positions of the first rotating seats (3) and the second rotating seats (4) are both rotatably connected to an eccentric rotating seat (5); each of the eccentric rotating seats (5) is fixedly connected to the coupling shaft (2); a group of evaporation components distributed in a circular array is arranged in the body (1); each of the evaporation components includes two evaporation modules; the two evaporation modules are linked by a belt; the evaporation modules include a heat exchange tube (6) rotatably connected to the eccentric rotating seat (5); the heat exchange tube (6) is provided with two groups of symmetrically arranged liquid permeable holes (7); the heat exchange tube (6) A flow control shaft (8) is rotatably connected between the inner surfaces of the heat exchange tube (6), the flow control shaft (8) and the heat exchange tube (6) are coaxially linked in opposite directions through a differential module, a spiral flow control plate (9) is installed on the flow control shaft (8) and at a position corresponding to the inner side of the heat exchange tube (6), a transmission component is installed on the device body (1), the first rotating seat (3), the second rotating seat (4) and the eccentric rotating seat (5) are all driven by the transmission component, a group of baffle modules are provided on the inner side of the device body (1), and a reciprocating drive component is provided in the device body (1), and the first rotating seat (3) and the second rotating seat (4) are driven by the reciprocating drive component and reciprocate along the axial direction of the device body (1).

2. A shell and tube evaporator for a snow melter according to claim 1, characterized in that: The flow splitting component comprises an evaporant inlet pipe (39), an evaporant outlet pipe (10), a fluid inlet pipe (11) and a fluid outlet pipe (12); the fluid inlet pipe (11) and the fluid outlet pipe (12) are both in communication with the inner cavity of the device body (1); an evaporant sub-cavity is provided on the inner wall of the device body (1) at a position corresponding to the position between the two first rotary seats (3) and the position between the two second rotary seats (4); the evaporant inlet pipe (39) and the evaporant outlet pipe (10) are respectively in communication with the two evaporant sub-cavities; the positions of the two groups of liquid permeable holes (7) respectively correspond to the positions of the two evaporant sub-cavities; and each of the liquid permeable holes (7) is in communication with the evaporant sub-cavity at the corresponding position.

3. The shell and tube evaporator for a snow melter according to claim 1, characterized in that: A guide sleeve (13) is rotatably mounted on both the first rotating seat (3) and the second rotating seat (4), and the guide sleeve (13) is slidably connected to the device body (1).

4. The shell and tube evaporator for a snow melter according to claim 1, characterized in that: The differential module comprises a central shaft (14) rotatably connected to an eccentric rotating seat (5), the central shaft (14) being provided with a middle bevel gear, the heat exchange tube (6) and the flow control shaft (8) being provided with side bevel gears, the two side bevel gears being transmission-connected to the middle bevel gear, and the two side bevel gears being respectively arranged on both sides of the middle bevel gear.

5. The shell and tube evaporator for a snow melter according to claim 1, characterized in that: The transmission component comprises a motor (15) mounted on the body (1), a top shaft (16) rotatably connected to the body (1), and a passive gear (17) mounted on the heat exchange tube (6); a driving gear (18) is mounted on the output shaft end of the motor (15) and is transmission-connected to a chain belt; an outer gear sleeve (19) is mounted on the first rotating seat (3); an upper gear (20) is mounted on the top shaft (16); the upper gear (20) is transmission-connected to the outer gear sleeve (19); a bracket (21) is mounted on the eccentric rotating seat (5); a hollow shaft (22) is provided on the rotating sleeve of the coupling shaft (2); the hollow shaft (22) The hollow shaft (22) is rotatably connected to the bracket (21); the hollow shaft (22) is transmission-connected to the coupling shaft (2) via a counter-linkage module; a transmission gear (23) is mounted on the hollow shaft (22); the transmission gear (23) is transmission-connected to a driven gear (17) on a heat exchange tube (6) in the evaporation component; a side shaft (24) is rotatably connected to the bracket (21); linkage gears (25) are mounted on both the side shaft (24) and the coupling shaft (2); the two linkage gears (25) are meshed with each other; an internal gear sleeve (26) is also mounted on the side shaft (24); the driving gear (18) is transmission-connected to the internal gear sleeve (26).

6. The shell and tube evaporator for a snow melter according to claim 5, characterized in that: The reverse linkage module comprises a reverse gear shaft (27) rotatably connected to the inner wall of the bracket (21), the reverse gear shaft (27) being provided with reverse bevel gears, the coupling shaft (2) and the hollow shaft (22) being provided with positive bevel gears, the two positive bevel gears being transmission-connected to the reverse bevel gears, and the two positive bevel gears being respectively arranged on both sides of the reverse bevel gears.

7. A shell and tube evaporator for a snow melter according to claim 6, characterized in that: The tooth length of the inner gear sleeve (26) is 6 to 9 times the tooth length of the driving gear (18), and the tooth length of the outer gear sleeve (19) is 6 to 9 times the tooth length of the upper gear (20).

8. The shell and tube evaporator for a snow melter according to claim 7, characterized in that: The baffle module comprises an eccentric baffle (28), the eccentric baffle (28) is provided with a plurality of brush sleeves (29) adapted to be connected to the heat exchange tube (6), the eccentric baffle (28) is provided with a liquid opening (30), a sliding sleeve (31) is installed at the axial position of the eccentric baffle (28), a through groove with two ends open is fixedly provided inside the sliding sleeve (31), a linkage section (32) is provided on the coupling shaft (2), the through groove is slidably connected to the linkage section (32), and the cross-sections of the through groove and the linkage section (32) are both regular polygons, and a driven rotary plate (33) is rotatably sleeved on the eccentric baffle (28), the driven rotary plate (33) is coaxially arranged with the first rotary seat (3), and the driven rotary plate (33) is rotatably connected to the device body (1).

9. A shell and tube evaporator for a snow melter according to claim 8, characterized in that: The number of the baffle modules is three, and the liquid-passing openings (30) on the two adjacent eccentric partitions (28) are arranged in a staggered mirror image.

10. The shell and tube evaporator for a snow melter according to claim 8, characterized in that: The reciprocating drive assembly comprises a lower shaft (34) rotatably connected to the device body (1), the lower shaft (34) being connected to the chain belt transmission, the inner wall of the device body (1) being rotatably connected to a reciprocating shaft (35), a group of half-toothed gears (36) being mounted on the reciprocating shaft (35), bevel gears being mounted on both the reciprocating shaft (35) and the lower shaft (34), the two bevel gears being meshed with each other, a reciprocating toothed plate (37) being mounted on a sliding sleeve (31), each of the half-toothed gears (36) being connected to the reciprocating toothed plate (37), and a return spring (38) being mounted between the device body (1) and an adjacent sliding sleeve (31).

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