Improved large refrigeration house with defrosting function

Abstract

The invention relates to the field of refrigeration houses, in particular to an improved large refrigeration house with a defrosting function, which comprises an outer wall body, an inner wall body is arranged in the outer wall body, a thermal insulation layer is arranged between the outer wall body and the inner wall body, and a plurality of evaporators are mounted at the upper part in the refrigeration house. Defrosters are installed at the bottoms of the evaporators, the evaporators are connected with a compressor, the compressor is connected with a condenser, the condenser is connected with a liquid storage device and a throttling device, and each defroster comprises a wall breaking assembly, a defrosting assembly and a defrosting assembly. A traditional defrosting mode is broken through, the problem that the temperature difference is suddenly changed due to the fact that the evaporation pipe makes direct contact with external high-temperature gas is effectively avoided, the temperature difference between the interior and the exterior of the evaporation pipe is controlled within a safety threshold value, the structural strength of the evaporation pipe is remarkably improved, and the service life of the evaporation pipe is remarkably prolonged. The refrigerator is especially suitable for professional refrigerator environments with extremely high requirements on temperature stability.

Description

Technical Field

[0001] The present invention relates to the field of cold storage, in particular to an improved large-scale cold storage with a defrosting function. Background Art

[0002] In the cold chain logistics and food storage industries, the efficient operation of large cold storage facilities is crucial to ensuring product quality. However, frost on the evaporator surface can significantly reduce heat exchange efficiency, increase energy consumption, and even cause equipment failure. Currently, traditional defrosting technologies mainly use electric heating or hot fluorine defrosting. Although defrosting can be achieved, they have disadvantages such as high energy consumption, easy damage to the evaporator tube due to temperature difference stress, and the need for downtime, which affects the continuous use of the cold storage. Although mechanical defrosting methods can be performed online, a single purge or scraping method is difficult to completely remove the stubborn frost layer and is prone to damage the surface of the evaporator tube. In addition, the existing defrosting system lacks an effective treatment mechanism for defrost water, and the accumulated water residue is prone to breed bacteria and corrode the equipment. With the increasing demand for intelligent and energy-saving cold storage, the development of a new defrosting technology that takes into account efficient defrosting, equipment protection, and energy saving and consumption reduction has become an urgent problem to be solved in the industry. Therefore, we propose an improved large cold storage with defrosting function to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an improved large-scale cold storage with a defrosting function.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an improved large-scale cold storage with a defrosting function, comprising a cold storage, wherein the cold storage comprises an outer wall, an inner wall is arranged inside the outer wall, an insulation layer is arranged between the outer wall and the inner wall, a plurality of evaporators are installed in the upper part of the cold storage, a defroster is installed at the bottom of each evaporator, the evaporator is connected to a compressor, the compressor is connected to a condenser, the condenser is connected to a liquid reservoir and a throttling device, and the defroster comprises a wall breaking component, a defrosting component and a defrosting component; The wall breaking assembly includes a receiving frame, which is sleeved on the outer periphery of the straight rod heat absorbing part of the evaporator inside the cold storage, the top of the receiving frame is installed on the top of the cold storage, and an electric heating wire is installed inside the receiving frame. Fixed ring seats are fixedly connected on both sides of the receiving frame, and the bottom of the outer periphery of the fixed ring seat is provided with a through opening, and a valve body is installed inside the through opening. A rotating ring is rotatably connected to the inner side of the fixed ring seat, and a hollow motor is installed on the side where the two rotating rings are close to each other. A cross pipe is fixedly connected to the inner side of the rotating part of the hollow motor, and a fixed rod is fixedly connected to the middle part of the upper and lower sides of the outer periphery of the cross pipe, and a rotating sleeve is rotatably connected to the middle part of the outer periphery of the fixed rod, and the outer periphery of the rotating sleeve is fixedly connected to evenly distributed impeller 2 and a crushing wheel, and the crushing wheel is arranged on one side of impeller 2.

[0005] Preferably, the defrosting assembly includes a horizontal pipe, through holes evenly distributed are penetrated through both the upper and lower parts of the horizontal pipe, guide plates evenly distributed are fixedly connected to both the upper and lower parts of the outer periphery of the horizontal pipe, the guide plates are all arranged on one side of the through holes, the second impellers are all arranged on one side of the end of the guide plates, the horizontal pipes are all communicated with the inside of the rotating rings, the inside of the rotating rings are all communicated with the inside of the fixed ring seats, tooth rings are fixedly connected to one ends of the rotating rings away from the horizontal pipes, gears are meshed and connected to the lower parts of the outer peripheries of the tooth rings, and wheel chambers are arranged on the sides of the gears away from the rotating rings.

[0006] Preferably, conduits are installed and communicated with the opposite ends of the rotating rings, the bottoms of the wheel chambers are all communicated with the inside of the conduits, the ends of the conduits away from the rotating rings all penetrate through the inner wall, connecting pipes are fixedly connected to the ends of one of the conduits, and the conduits are all communicated with the inside of the connecting pipes.

[0007] Preferably, the defrosting assembly includes fixed shafts, the fixed shafts are fixedly connected to both sides inside the horizontal pipe, a cam disk and a third impeller are rotatably connected to the middle parts of the outer peripheries of the fixed shafts, the third impellers are all arranged on the upper and lower parts of the cam disk, guide rods are slidably connected to both sides of the outer periphery of the cam disk, and scraping frames are fixedly connected to the ends of the guide rods away from the cam disk.

[0008] Preferably, rotating shafts are fixedly connected to the middle parts of the gears, first impellers are fixedly connected to the middle parts of the outer peripheries of the rotating shafts, and the first impellers are all arranged inside the wheel chambers.

[0009] Preferably, through pipes are installed and communicated with both sides of the wheel chambers, side pipes are fixedly connected to the ends of the through pipes away from the wheel chambers, and the ends of the side pipes are all communicated with the inside of the rotating rings.

[0010] Preferably, pump bodies are installed at the ends of the connecting pipes, ventilation sleeves are communicated with the input ends of the pump bodies, and the ventilation sleeves are all sleeved on the outer peripheries of the ends of the evaporation pipes of the evaporator.

[0011] Preferably, the ends of the scraping frames penetrate through the side walls of the horizontal pipe, and the ends of the guide rods penetrate through the side walls of the horizontal pipe.

[0012] Preferably, the guide rods and the scraping frames are both slidably connected to the horizontal pipe, and limiting rings are fixedly connected to the outer peripheries of the ends of the guide rods close to the cam disk.

[0013] Preferably, reset springs are arranged on the sides of the limiting rings away from the cam disk, and the reset springs are all sleeved on one side of the outer periphery of the guide rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts an innovatively designed intelligent defrost system, which accurately extracts the peripheral air of the end of the evaporator tube of the evaporator through the pump body, and pre-cools the air through the insulation layer, the ventilation sleeve and the evaporator tube, thereby constructing a unique air pre-cooling circulation path. After being transported to the rotating ring, the fixed ring seat and the cross pipe through the connecting pipe and the duct, the cold air is blown directionally through the through hole at a controllable flow rate to the frost layer on the surface of the evaporator tube, thereby achieving efficient defrosting. This technology breaks through the traditional defrost mode, effectively avoids the problem of sudden temperature difference caused by direct contact between the evaporator tube and the external high-temperature gas, controls the temperature difference between the inside and outside of the evaporator tube within the safety threshold, significantly improves its structural strength and service life, and can defrost without shutting down the evaporator. It is particularly suitable for professional cold storage environments with extremely high requirements for temperature stability.

[0015] The present invention adopts the integrated design of self-circulating defrost and heat dissipation, and utilizes the original receiving frame to integrate electric defrost and diversion heat dissipation functions. When the frost naturally falls off to the receiving frame, the built-in heating wire starts quickly to melt the frost rapidly; the synchronously opened port valve body guides the melted water to be discharged through the thermal insulation layer to avoid residual water accumulation. The auxiliary airflow formed by the through holes on both sides of the horizontal pipe not only accelerates the melting and discharge of frost, but also can accurately take away the excess heat generated by the heating wire, forming a closed-loop system of "defrosting-heat dissipation-protection", which not only ensures the stable operation of the evaporator tube, but also reduces energy consumption and optimizes the overall operating efficiency of the equipment.

[0016] The present invention has the dual functions of airflow guidance and protection: the innovatively arranged guide plate has the dual functions of airflow guidance and through-hole protection. On the one hand, through the scientifically designed guide surface, the airflow is accurately guided to blow to the frost layer fracture after treatment by the crushing wheel, thereby accelerating the peeling of frost blocks; on the other hand, the guide plate builds a physical protection barrier to effectively intercept falling frost and ice, prevent the through-hole from being blocked, ensure the stable output of the defrost airflow, and provide reliable guarantee for the continuous and efficient operation of the defrost system.

[0017] The present invention realizes the efficient conversion of airflow energy and mechanical energy through a breakthrough gas-driven mechanical transmission design. After the gas enters the duct, the branch drives the impeller 1 in the wheel compartment, which drives the rotating ring and the cross tube to rotate around the evaporator tube through the rotating shaft, gears, and gear ring transmission chain, realizing 360° all-round defrosting; the airflow ejected from the through hole drives the impeller 2, which rotates the sleeve and the crushing wheel in conjunction to break the frost layer into small pieces that are easy to fall off; the hollow motor at the end of the cross tube and the impeller 3, the cam, the guide rod, and the scraper constitute a dynamic scraping mechanism. During the rotation of the cross tube, the scraper is periodically driven to extend and retract by the cam, forming a multi-dimensional coordinated defrosting mode of "rotational blowing-mechanical crushing-dynamic scraping", which greatly improves the defrosting efficiency and quality, and lays a solid foundation for the subsequent efficient heat absorption of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an improved large-scale cold storage with a defrosting function according to the present invention; Figure 2Schematic diagram of the partial structure at the defroster of an improved large cold storage with defrosting function according to the present invention; Figure 3 Schematic diagram of the partial structure at the evaporation pipe of an improved large cold storage with defrosting function according to the present invention; Figure 4 Schematic diagram of the partial structure at the receiving rack of an improved large cold storage with defrosting function according to the present invention; Figure 5 Schematic diagram of the partial structure at the conduit of an improved large cold storage with defrosting function according to the present invention; Figure 6 Schematic diagram of the partial structure at the fixed ring seat of an improved large cold storage with defrosting function according to the present invention; Figure 7 Schematic diagram of the partial structure at the horizontal pipe of an improved large cold storage with defrosting function according to the present invention; Figure 8 Schematic diagram of the partial structure at the convex disk of an improved large cold storage with defrosting function according to the present invention.

[0019] 1. Cold storage; 101. Outer wall; 102. Inner wall; 103. Thermal insulation layer; 2. Evaporator; 3. Defroster; 301. Receiving rack; 302. Pump body; 303. Connecting pipe; 304. Conduit; 305. Swivel ring; 306. Fixed ring seat; 307. Horizontal pipe; 308. Tooth ring; 309. Through pipe; 310. Wheel chamber; 311. Rotating shaft; 312. Side pipe; 313. Gear; 314. Scraping rack; 315. Guide plate; 316. Guide rod; 317. Impeller I; 318. Fixed rod; 319. Crushing wheel; 320. Rotating sleeve; 321. Impeller II; 322. Through hole; 323. Return spring; 324. Limit ring; 325. Convex disk; 326. Impeller III; 327. Fixed shaft; 328. Through port; 4. Compressor; 5. Condenser. Detailed implementation manners

[0020] 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 in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0021] As Figures 1-8An improved large cold storage with a defrosting function as shown includes a cold storage 1, which comprises an outer wall 101. An inner wall 102 is arranged inside the outer wall 101, and a heat insulation layer 103 is arranged between the outer wall 101 and the inner wall 102. A plurality of evaporators 2 are installed in the upper part of the cold storage 1, and defrosters 3 are installed at the bottoms of the evaporators 2. The evaporators 2 are connected to a compressor 4, the compressor 4 is connected to a condenser 5, and the condenser 5 is connected to a liquid storage device, a throttling device, an expansion valve, a pressure controller, a dryer, an oil separator and other equipment related to the refrigeration system to ensure the smooth operation of the refrigeration system. The above-mentioned equipment is all installed inside the equipment bin of the cold storage 1. The defroster 3 includes a wall-breaking component, a defrosting component and a defrosting component; Further, in specific implementation, when the cold storage is operating, the frosting on the surface of the evaporator 2 due to low temperature will reduce the heat exchange efficiency. At this time, the control system triggers the defroster 3 to start. The pump body 302 extracts the air in the heat insulation layer 103 through the ventilation sleeve, transports it through the connecting pipe 303 and the conduit 304 to the rotating ring 305 and the fixed ring seat 306, then enters the horizontal pipe 307, and finally sprays it onto the surface of the evaporation pipe of the evaporator 2 through the through hole 322 to achieve defrosting. At the same time, the high-temperature air flow drives the movement of each component to complete auxiliary defrosting actions such as wall-breaking and frost scraping.

[0022] Among them, the defrosting component includes a horizontal pipe 307. Uniformly distributed through holes 322 penetrate through the upper and lower parts of the horizontal pipe 307. Guide plates 315 are fixedly connected to the upper and lower parts of the outer periphery of the horizontal pipe 307. The guide plates 315 are all arranged on one side of the through hole 322. The second impellers 321 are all arranged on one side of the end of the guide plate 315. The horizontal pipes 307 are all connected to the inside of the rotating ring 305, and the inside of the rotating ring 305 is all connected to the inside of the fixed ring seat 306. Tooth rings 308 are fixedly connected to one end of the rotating ring 305 away from the horizontal pipe 307. Lower parts of the outer peripheries of the tooth rings 308 are meshed with gears 313. Wheel bins 310 are arranged on one side of the gears 313 away from the rotating ring 305. Shafts 311 are fixedly connected to the middles of the gears 313. First impellers 317 are fixedly connected to the middles of the outer peripheries of the shafts 311. The first impellers 317 are all arranged inside the wheel bins 310. Through pipes 309 are installed and communicated on both sides of the wheel bins 310. Side pipes 312 are fixedly connected to one ends of the through pipes 309 away from the wheel bins 310. Ends of the side pipes 312 are all connected to the inside of the rotating ring 305. On one end of the rotating ring 305 away from each other, conduits 304 are installed and communicated. Bottoms of the wheel bins 310 are all connected to the inside of the conduits 304. One ends of the conduits 304 away from the rotating ring 305 penetrate through the inner wall 102. One ends of the conduits 304 on one side are fixedly connected to connecting pipes 303. The conduits 304 are all connected to the inside of the connecting pipes 303. Pump bodies 302 are installed at the ends of the connecting pipes 303. Input ends of the pump bodies 302 are all communicated with ventilation sleeves, and the ventilation sleeves are all sleeved on the outer peripheries of the ends of the evaporation pipes of the evaporator 2; Further, in specific implementation, the defroster 3 can be started. The pump body 302 can extract the air outside the end of the evaporation tube on the evaporator 2. The air inside the heat insulation layer 103 will enter the ventilation sleeve and come into contact with the evaporation tube. The air inside the ventilation sleeve can be preliminarily cooled by the evaporation tube. Then, the gas will enter the inside of the conduit 304 through the connecting pipe 303, and is transported to the swivel 305 and the fixed ring seat 306 through the connecting pipe 303 and the conduit 304, and then enters the inside of the horizontal pipe 307. Finally, the gas will be sprayed onto the surface of the evaporation tube of the evaporator 2 through the through hole 322, so as to realize the blowing of the frosting part on the surface of the evaporation tube, and thus can avoid the direct contact between the evaporation tube and the external high-temperature gas, resulting in too large temperature difference between the inside and outside of the evaporation tube, and effectively avoid the damage of the evaporation tube due to excessive temperature difference and the decrease of strength, which is beneficial to the actual defrosting of the cold storage. The falling frost can be received by the receiving frame 301. Then, the heating wire inside the receiving frame 301 will start to work, so as to quickly melt the frost inside. At the same time, the valve body in the through port 328 is opened, and the melted ice water will flow out through the through ports 328 on both sides and enter the inside of the heat insulation layer 103 and be further discharged. By opening the through holes 322 on both sides of the horizontal pipe 307, part of the gas can be blown onto the falling frost, so as to effectively accelerate the melting and outflow of the frost, and at the same time, dissipate the heat generated by the heating wire inside the receiving frame 301, avoiding its influence on the evaporation tube. Through the setting of the guide plate 315, the air flow can be guided, so that the air flow can blow to the fracture after being broken by the breaking wheel 319, so as to accelerate the peeling of the frost block on the evaporation tube, which is beneficial to the defrosting work. At the same time, through the guide plate 315, the protection of the through hole 322 can be realized, avoiding the frost ice falling and blocking the through hole 322, which is not conducive to the defrosting work.

[0023] Among them, the defrosting assembly includes a fixed shaft 327. The fixed shafts 327 are fixedly connected to both sides inside the horizontal pipe 307. In the middle of the outer periphery of the fixed shaft 327, a convex disk 325 and an impeller three 326 are rotatably connected. The impellers three 326 are arranged above and below the convex disk 325. On both sides of the outer periphery of the convex disk 325, a guide rod 316 is slidably connected. One end of the guide rod 316 away from the convex disk 325 is fixedly connected with a scraping frame 314. The ends of the scraping frames 314 all penetrate the side wall of the horizontal pipe 307. The ends of the guide rods 316 all penetrate the side wall of the horizontal pipe 307. The guide rods 316 and the scraping frames 314 are both slidably connected to the horizontal pipe 307. On the outer periphery of one end of the guide rod 316 close to the convex disk 325, a limit ring 324 is fixedly connected. On one side of the limit ring 324 away from the convex disk 325, a return spring 323 is arranged. The return springs 323 are all sleeved on the outer periphery of one side of the guide rod 316; Further, during the defrosting process in specific implementation, the hollow motor at the end of the horizontal pipe 307 can drive the horizontal pipe 307 to rotate slowly. During this process, when the gas passes through the horizontal pipe 307, the gas will encounter the third impeller 326, which will drive the third impeller 326 and the convex disk 325 to rotate. During the contact process of the convex disk 325, the convex disk 325 can drive the contacting guide rod 316 to move, thereby driving the scraping frame 314 to extend outward. During this process, the reset spring 323 can reset the scraping frame 314, enabling the scraping frame 314 to continuously contract and expand, thus effectively improving the efficiency of breaking and peeling the ice and frost on the evaporation pipe, which is beneficial for actual use.

[0024] Among them, the wall-breaking component includes a receiving frame 301. The receiving frames 301 are all sleeved on the outer periphery of the straight rod heat-absorbing part of the evaporator 2 inside the cold storage 1. The tops of the receiving frames 301 are all installed on the inner top of the cold storage 1. Electric heating wires are installed inside the receiving frames 301. Fixed ring seats 306 are fixedly connected to both sides inside the receiving frames 301. Through openings 328 are provided at the bottoms of the outer peripheries of the fixed ring seats 306. Valves are installed inside the through openings 328. Rotating rings 305 are rotatably connected to the inner sides of the fixed ring seats 306. Hollow motors are installed on the sides of the two rotating rings 305 close to each other. The inner sides of the rotating parts of the hollow motors are fixedly connected to horizontal pipes 307. Fixed rods 318 are fixedly connected to the middle parts of the upper and lower sides of the outer peripheries of the horizontal pipes 307. Rotating sleeves 320 are rotatably connected to the middle parts of the outer peripheries of the fixed rods 318. Second impellers 321 and crushing wheels 319 are fixedly connected to the outer peripheries of the rotating sleeves 320 and are evenly distributed. The crushing wheels 319 are all arranged on one side of the second impellers 321. Further, in specific implementation, after the gas enters the inside of the conduit 304, part of the gas will enter the inside of the wheel chamber 310, which will drive the first impeller 317 inside the wheel chamber 310 to rotate. Through the first impeller 317, the rotating shaft 311 and the gear 313 fixed to it can be driven to rotate. Through the gear 313, the rotating ring 305 can be driven to rotate through the toothed ring 308 meshing with it. Through the rotating ring 305, the horizontal pipe 307 can be driven to rotate around the evaporation pipe of the evaporator 2, so as to defrost the circumference of the evaporation pipe together, which is beneficial for the subsequent cooling and heat absorption work of the evaporation pipe. When the gas is ejected through the through hole 322, under the guidance of the guide plate 315, the air flow will encounter the second impeller 321. Through the second impeller 321, the rotating sleeve 320 can be driven to rotate. The crushing wheels 319 installed on the rotating sleeve 320 can break the ice and frost on the outer periphery of the evaporation pipe in contact, so as to break the complete ice and frost shell, effectively accelerating the ice and frost shedding and facilitating the subsequent defrosting work. Further, during actual use.

[0025] Working principle: During actual use, the defroster 3 can be started. Through the pump body 302, air can be extracted from the outer periphery of the end of the evaporation tube on the evaporator 2. The air inside the heat insulation layer 103 will enter the ventilation sleeve and come into contact with the evaporation tube. The air inside the ventilation sleeve can be preliminarily cooled through the evaporation tube. Then, the gas will enter the inside of the conduit 304 through the connecting pipe 303, and is transported to the swivel 305 and the fixed ring seat 306 through the connecting pipe 303 and the conduit 304, and then enters the inside of the horizontal pipe 307. Finally, the gas will be sprayed onto the surface of the evaporation tube of the evaporator 2 through the through hole 322, so as to realize the blowing of the frosted part on the surface of the evaporation tube, and thus while realizing defrosting, it can avoid the direct contact between the evaporation tube and the external high-temperature gas, resulting in too large a temperature difference between the inside and outside of the evaporation tube, so as to effectively avoid the damage of the evaporation tube due to excessive temperature difference and the resulting strength decline, which is beneficial to the actual defrosting of the cold storage. The falling ice and frost can be received through the receiving frame 301. Then, the heating wire inside the receiving frame 301 will start to work, so as to quickly melt the ice and frost inside. At the same time, the valve body in the through port 328 is opened, and the melted ice water will flow out through the through ports 328 on both sides and enter the inside of the heat insulation layer 103 and be further discharged. By opening the through holes 322 on both sides of the horizontal pipe 307, part of the gas can be blown onto the falling ice and frost, so as to effectively accelerate the melting and outflow of the ice and frost, and at the same time, the heat generated by the heating wire inside the receiving frame 301 can be dissipated, avoiding its influence on the evaporation tube, which is beneficial to actual use. Through the setting of the guide plate 315, the airflow can be guided, so that the airflow can blow to the fracture of the broken ice block by the crushing wheel 319, so as to accelerate the peeling of the frost block on the evaporation tube, which is beneficial to the defrosting work. At the same time, through the guide plate 315, the protection of the through hole 322 can be realized, avoiding the frost and ice falling and blocking the through hole 322, which is not conducive to the defrosting work. At the same time, during actual use, after the gas enters the inside of the conduit 304, part of the gas will enter the wheel chamber 310, thus driving the impeller one 317 inside the wheel chamber 310 to rotate. Through the impeller one 317, the rotating shaft 311 and the gear 313 fixed to it can be driven to rotate. Through the gear 313, the swivel 305 can be driven to rotate through the toothed ring 308 engaged with it. Through the swivel 305, the horizontal pipe 307 can be driven to rotate around the evaporation tube of the evaporator 2, so as to defrost the entire circumference of the evaporation tube together, which is beneficial to the subsequent cooling and heat absorption work of the evaporation tube. When the gas is sprayed out through the through hole 322, under the guidance of the guide plate 315, the airflow will encounter the impeller two 321. Through the impeller two 321, the rotating sleeve 320 can be driven to rotate. The crushing wheel 319 installed on the rotating sleeve 320 can realize the crushing of the frost on the outer periphery of the evaporation tube in contact, so as to break the complete frost shell, effectively accelerating the falling of the frost, which is convenient for the subsequent defrosting work. Further, during actual use, during the defrosting process, the hollow motor at the end of the horizontal pipe 307 can drive the horizontal pipe 307 to rotate slowly.During this process, when the gas passes through the horizontal pipe 307, the gas will encounter the third impeller 326, which drives the third impeller 326 and the convex disk 325 to rotate. During the contact process of the convex disk 325, the contacting guide rod 316 can be driven by the convex disk 325 to move, so that the scraping frame 314 can be driven to extend outward. During this process, the reset spring 323 can reset the scraping frame 314, enabling the scraping frame 314 to continuously contract and expand, thereby effectively improving the efficiency of breaking and peeling the frost on the evaporation pipe, which is beneficial for practical use.

[0026] 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 by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved large cold storage with a defrosting function, including a cold storage (1), characterized in that: The cold storage (1) includes an outer wall (101), an inner wall (102) is arranged inside the outer wall (101), a heat insulation layer (103) is arranged between the outer wall (101) and the inner wall (102), a plurality of evaporators (2) are installed in the upper part of the cold storage (1), defrosters (3) are installed at the bottoms of the evaporators (2), the evaporators (2) are connected to a compressor (4), the compressor (4) is connected to a condenser (5), the condenser (5) is connected to a liquid storage device and a throttling device, and the defroster (3) includes a wall-breaking component, a defrosting component and a defrosting component; The wall-breaking component includes a receiving frame (301), the receiving frames (301) are sleeved on the outer circumference of the straight rod heat-absorbing part of the evaporator (2) inside the cold storage (1), the tops of the receiving frames (301) are installed on the inner top of the cold storage (1), electric heating wires are installed inside the receiving frames (301), fixed ring seats (306) are fixedly connected to both sides inside the receiving frames (301), through openings (328) are opened at the bottoms of the outer circumferences of the fixed ring seats (306), valves are installed inside the through openings (328), rotary rings (305) are rotatably connected to the inner sides of the fixed ring seats (306), hollow motors are installed on the sides of the two rotary rings (305) close to each other, horizontal pipes (307) are fixedly connected to the inner sides of the rotating parts of the hollow motors, fixing rods (318) are fixedly connected to the middle parts of the upper and lower sides of the outer circumferences of the horizontal pipes (307), rotating sleeves (320) are rotatably connected to the middle parts of the outer circumferences of the fixing rods (318), uniformly distributed impellers II (321) and crushing wheels (319) are fixedly connected to the outer circumferences of the rotating sleeves (320), and the crushing wheels (319) are arranged on one side of the impellers II (321).

2. An improved large cold storage with a defrosting function according to claim 1, characterized in that: The defrosting component includes a horizontal pipe (307), uniformly distributed through holes (322) penetrate through the upper and lower parts of the horizontal pipe (307), uniformly distributed guide plates (315) are fixedly connected to the upper and lower parts of the outer circumference of the horizontal pipe (307), the guide plates (315) are arranged on one side of the through holes (322), the impellers II (321) are arranged on one side of the ends of the guide plates (315), the horizontal pipes (307) are connected to the inside of the rotary rings (305), the inside of the rotary rings (305) is connected to the inside of the fixed ring seats (306), tooth rings (308) are fixedly connected to the ends of the rotary rings (305) away from the horizontal pipes (307), gears (313) are meshed and connected to the lower parts of the outer circumferences of the tooth rings (308), and wheel bins (310) are arranged on the sides of the gears (313) away from the rotary rings (305).

3. An improved large cold storage with a defrosting function according to claim 2, characterized in that: Conduits (304) are installed and connected to the ends of the rotary rings (305) away from each other, the bottoms of the wheel bins (310) are connected to the inside of the conduits (304), the ends of the conduits (304) away from the rotary rings (305) penetrate through the inner wall (102), connecting pipes (303) are fixedly connected to the ends of one side of the conduits (304), and the conduits (304) are connected to the inside of the connecting pipes (303).

4. An improved large cold storage with a defrosting function according to claim 1, characterized in that: The defrosting component includes a fixed shaft (327), and the fixed shafts (327) are fixedly connected to both sides inside the horizontal pipe (307). In the middle of the outer periphery of the fixed shafts (327), a cam disk (325) and an impeller three (326) are rotatably connected. The impellers three (326) are arranged above and below the cam disk (325). On both sides of the outer periphery of the cam disk (325), guide rods (316) are slidably connected. One end of each guide rod (316) far from the cam disk (325) is fixedly connected to a scraping frame (314).

5. An improved large cold storage with a defrosting function according to claim 2, characterized in that: In the middle of each of the gears (313), a rotating shaft (311) is fixedly connected. In the middle of the outer periphery of the rotating shafts (311), impellers one (317) are fixedly connected. The impellers one (317) are arranged inside the wheel chamber (310).

6. An improved large cold storage with a defrosting function according to claim 5, characterized in that: On both sides of the wheel chamber (310), a through pipe (309) is installed and communicated. One end of each through pipe (309) far from the wheel chamber (310) is fixedly connected to a side pipe (312). The ends of the side pipes (312) are communicated with the inside of the rotating ring (305).

7. An improved large cold storage with a defrosting function according to claim 3, characterized in that: At the ends of the connecting pipes (303), a pump body (302) is installed. The input ends of the pump bodies (302) are communicated with an air vent sleeve, and the air vent sleeves are sleeved on the outer periphery of the ends of the evaporation pipes of the evaporator (2).

8. An improved large cold storage with a defrosting function according to claim 4, characterized in that: The ends of the scraping frames (314) penetrate through the side wall of the horizontal pipe (307), and the ends of the guide rods (316) penetrate through the side wall of the horizontal pipe (307).

9. An improved large cold storage with a defrosting function according to claim 8, characterized in that: The guide rods (316) and the scraping frames (314) are both slidably connected to the horizontal pipe (307). On the outer periphery of one end of each guide rod (316) close to the cam disk (325), a limiting ring (324) is fixedly connected.

10. An improved large cold storage with a defrosting function according to claim 9, characterized in that: On one side of each limiting ring (324) far from the cam disk (325), a return spring (323) is arranged. The return springs (323) are sleeved on one side of the outer periphery of the guide rods (316).

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