Energy-saving vegetable storage refrigerator with internal air circulation and purification function

Abstract

The application relates to the technical field of air purification of refrigeration storage, in particular to an energy-saving vegetable storage refrigeration storage with internal air circulation and purification function, which comprises a refrigeration storage body, an adsorption device and a pipeline system behind the refrigeration storage body, the refrigeration storage body is divided into a purification chamber, a first cooling chamber and a rear cooling chamber, the pipeline system comprises a dirty gas pipe and a multifunctional on-off valve, the multifunctional on-off valve comprises a first through pipe, a closed disc and a circular valve. When the refrigeration storage is uniformly controlled, the first through pipe is connected with all the dirty gas pipes, all the adjacent cooling chambers are connected, and internal circulation of the whole refrigeration storage body is realized; when a single cooling chamber is adjusted, the multifunctional on-off valve is adjusted, corresponding circular valves are aligned and connected with the cooling chamber, and purified gas is input, so that the refrigeration storage can adjust the gas concentration of any one or more adjacent cooling chambers, the capacity of the refrigeration storage for storing different kinds of vegetables is enhanced, and the cost of setting multiple separate purification devices is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification of refrigeration house, in particular to an energy-saving vegetable storage refrigeration house with internal air circulation and purification functions. BACKGROUND

[0002] As a key warehouse facility, the refrigeration house plays an important role in the field of food preservation and storage. Its main function is to create a low-temperature environment with the help of a refrigeration system, effectively inhibiting the growth and reproduction of microorganisms, slowing down the rate of food spoilage, prolonging the preservation period, and ensuring food safety and quality. The production of carbon dioxide and ethylene by vegetables is a natural response to their normal physiological activities and environmental changes. Ethylene promotes the aging of vegetables, induces physiological disorders, and increases the susceptibility to diseases; carbon dioxide can inhibit vegetable respiration, slow down cell respiration rate, and reduce organic matter consumption, thereby delaying aging and decay, and also inhibiting the growth and reproduction of microorganisms, reducing the risk of decay and spoilage, while maintaining the color, taste and nutritional content of vegetables.

[0003] The patent with application number CN202421051048 discloses an air circulation type refrigeration house, which comprises a refrigeration house body, an openable refrigeration house door and a mounting port provided on one side wall of the refrigeration house body; a refrigeration box provided inside the refrigeration house body; a rotating cylinder rotatably connected to the outlet of the refrigeration box and communicating with the refrigeration box, the rotating cylinder being located above the refrigeration house door, and an air outlet being formed in the rotating cylinder, the rotating cylinder being rotatable to make the air outlet downwardly face the refrigeration house door. By rotating the rotating plate, the internal circulation and external ventilation state of the refrigeration house are changed. When the rotating plate is horizontal, the gas inside the refrigeration house body is discharged to the outside, thereby avoiding the accumulation of harmful gas inside the refrigeration house body. When the rotating plate is vertical, the cold air circulates in the refrigeration house body, ensuring the storage temperature inside the refrigeration house body. When goods are transported in and out of the refrigeration house, the air guide port faces downwardly to the refrigeration house door, forming an air curtain, thereby effectively preventing external hot air from entering the refrigeration house body.

[0004] By rotating the rotating plate, the internal circulation and external ventilation state of the refrigeration house are changed, which can indeed make the relatively dirty gas inside the refrigeration house body discharged to the outside, thereby avoiding the accumulation of harmful gas inside the refrigeration house body. However, it is difficult to ensure that the incoming external gas is sterile, and it is also impossible to control the appropriate carbon dioxide concentration to benefit the storage of vegetables. Moreover, different vegetables have different storage temperature and gas concentration requirements, so scientific regulation of ethylene and carbon dioxide can effectively prolong the preservation period of vegetables, maintain their quality and nutritional value, reduce losses, and ensure the market supply and food quality of vegetables. SUMMARY

[0005] In order to overcome the defects in the prior art, the purpose of the present application is to provide an energy-saving vegetable storage refrigeration house with internal air circulation and purification functions to solve the problems raised in the background art.

[0006] To achieve the above objectives, the present invention provides an energy-saving vegetable storage cold storage with internal air circulation and purification function, including a cold storage room body, an adsorption device for purifying gas is provided on the right side of the cold storage room body, and a pipeline system is provided on the rear side of the cold storage room body.

[0007] The bottom of the cold storage room is vertically spaced with several short baffles. The rightmost short baffle has a first partition parallel to its left side, and the remaining short baffles have rear partitions parallel to their left sides. The interior of the cold storage room is divided into several working chambers from right to left: a clean room, a first cold room, and two rear cold rooms.

[0008] The piping system includes a waste gas pipe, several exhaust boxes connected to the waste gas pipe and embedded in the rear wall of several working chambers, a clean gas pipe for outputting gas to several working chambers, several gas delivery boxes connected to the clean gas pipe, and a multi-functional on / off valve that is rotatably connected to the exhaust box and the nearest gas delivery box.

[0009] The multi-functional on / off valve includes a closed disc rotatably connected to the left side wall of the exhaust box, a first through pipe, a second through pipe, and a third through pipe vertically inserted into the right side wall of the closed disc, a circular valve rotatably connected to the air delivery box, and a rotating shaft connecting the closed disc and the circular valve; the closed disc has a through hole.

[0010] As a further improvement to this technical solution, the cold storage room body includes a base plate, a surrounding plate vertically installed at the outer edge of the top surface of the base plate, and a top plate set on the top of the surrounding plate. Cold storage doors are provided on the front side wall of the surrounding plate corresponding to the first cold room and several adjacent rear cold rooms.

[0011] Each of the exhaust boxes is connected between the short baffle and the corresponding nearby rear partition; one end of the clean air pipe is connected to the right end of the cold storage body, and the other end is closed; an upper air outlet is provided on the first partition, and an electric air valve for closing the clean air pipe or the upper air outlet is provided at the connection point of the clean air pipe on the first partition; a lower air outlet is provided on the rear partition for aligning with and connecting the through hole.

[0012] As a further improvement of the technical solution, the adsorption device comprises a supporting block fixed at the front side of the bottom plate, a supporting plate fixed at the front side of the top plate, a plurality of cylindrical rollers rotationally connected between the supporting block and the supporting plate, an ethylene adsorption plate and a carbon dioxide adsorption plate slidingly connected on the front side wall of the enclosing plate; the ethylene adsorption plate and the carbon dioxide adsorption plate are both in the shape of a flat rectangular block and are perpendicular to the front side wall of the enclosing plate, and a half number of the cylindrical rollers are symmetrically arranged on both sides of the ethylene adsorption plate and are in rolling contact with the ethylene adsorption plate, and the other half number of the cylindrical rollers are symmetrically arranged on both sides of the carbon dioxide adsorption plate and are in rolling contact with the carbon dioxide adsorption plate.

[0013] As a further improvement of the technical solution, the first partition plate is provided with an extension block at the upper gas inlet hole for extending the upper gas inlet hole; when the electric air valve rotates backward to close the clean gas pipe, the upper gas inlet hole is opened at the same time; when the electric air valve rotates forward to close the upper gas inlet hole, the clean gas pipe is opened at the same time.

[0014] A plurality of front partition plates are vertically fixed on the rear inner side wall of the enclosing plate, and all the front partition plates are located in the purification chamber; the right end of the dirty gas pipe is communicated between the rightmost front partition plate and the enclosing plate; a Roots blower for sucking gas from the dirty gas pipe is installed in the purification chamber, and another Roots blower for supplying gas to the clean gas pipe or the primary cooling chamber is also installed in the purification chamber.

[0015] As a further improvement of the technical solution, a refrigeration machine is correspondingly installed on the inner side wall of the primary cooling chamber and each of the rear cooling chambers; a carbon dioxide concentration detector and an ethylene concentration detector are correspondingly installed on the inner side wall of the primary cooling chamber and each of the rear cooling chambers; the materials of the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 are activated carbon.

[0016] As a further improvement of the technical solution, the lengths of the first partition plate and the rear partition plate are equal to the inner width of the cold storage room body, and the lengths of the front partition plate and the short baffle plate are less than the inner width of the cold storage room body; in the purification chamber, the front partition plate, the short baffle plate, the ethylene adsorption plate and the carbon dioxide adsorption plate are staggered on the front and rear inner side walls of the enclosing plate, so as to divide the purification chamber into continuous S-shaped air passages.

[0017] As a further improvement of the technical solution, the cylindrical rollers are two in a group, and a first gear is coaxially connected to the upper end of each of the two groups of cylindrical rollers corresponding to the ethylene adsorption plate and the carbon dioxide adsorption plate, and two corresponding first gears are meshed with each other; a first servo motor for driving the ethylene adsorption plate and the carbon dioxide adsorption plate to slide forward and backward is installed on the supporting plate through an L-shaped plate.

[0018] As a further improvement of the technical solution, the left and right inner groove surfaces of the exhaust box and the gas conveying box are circular and coaxial, each exhaust box is communicated between the corresponding short baffle and the rear baffle, the communication position of the same exhaust box with the exhaust pipe is an exhaust port, and the two exhaust ports on the same exhaust box are symmetrical to each other, the exhaust port, the lower gas conveying hole, the first through pipe, the second through pipe, the third through pipe and the through hole are on the same circle; the right side of the closure disc is coaxially connected with a main shaft, the center line of the first through pipe and the third through pipe passes through the center of the closure disc, and the second through pipe and the through hole are on one side of the center line of the first through pipe and the third through pipe.

[0019] The middle part of the rotating shaft is coaxially connected with a large gear, a second servo motor for rotating the multifunctional on-off valve is installed on the inner wall of the back wall of the surrounding plate through bolts, and a small gear is coaxially connected with the output shaft of the second servo motor.

[0020] As a further improvement of the technical solution, the closure disc is in the shape of a circular disc; a branch pipe is communicated between the clean gas pipe and the corresponding gas conveying box, the circular ring valve is in the shape of a cylindrical cylinder, a hole is formed in the circular arc curved wall of the circular ring valve corresponding to the communication position of the branch pipe, and crescent baffles are fixedly installed on the two sides of the circular ring valve; the gas conveying box is provided with an expansion port for facilitating gas output corresponding to the through hole of the crescent baffle.

[0021] In the same multifunctional on-off valve, the closure disc rotates, when the second through pipe communicates with the corresponding two exhaust ports, the closure disc closes the lower gas conveying hole, and the circular ring valve rotates to the position where the hole is aligned with the branch pipe at the same time; when the third through pipe communicates with the corresponding two exhaust ports, the closure disc closes the lower gas conveying hole, and the hole is not communicated with the branch pipe; when the closure disc rotates to simultaneously block the corresponding left exhaust port and the lower gas conveying hole, the corresponding right exhaust port is communicated between the corresponding first baffle and the corresponding rear baffle, and the hole is not communicated with the branch pipe; when the first through pipe communicates with the corresponding two exhaust ports, the through hole is aligned and communicated with the lower gas conveying hole, and the hole is not communicated with the branch pipe.

[0022] As a further improvement of the technical solution, the Roots blower comprises a shell, two impellers always abutting each other and rotatingly connected between the bottom plate and the top plate, and matched leaf shafts, second gears are coaxially connected to the two leaf shafts, and a rotating motor for driving the Roots blower to operate is installed on the top plate through an installation cover plate; the length of the impeller is equal to the internal height of the cold storage room body.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1. The energy-saving vegetable storage refrigerator with internal air circulation and purification function, through the pipeline system, when the refrigerator is uniformly controlled, the gas enters the purification chamber from the right end of the dirty gas pipe, then passes through the first cooling chamber and the rear cooling chamber, and finally returns to the dirty gas pipe to form internal circulation and purification; and the gas is supplied to a single cooling chamber through the multi-functional on-off valve, so that a single purification chamber adjusts the temperature or gas concentration of any one or more adjacent cooling chambers, thereby enhancing the ability of the refrigerator to store different types of vegetables and avoiding the high cost of setting up multiple separate purification devices.

[0025] 2. The energy-saving vegetable storage refrigerator with internal air circulation and purification function, through the vertical sliding connection of the carbon dioxide concentration detector and the ethylene concentration detector on the ethylene adsorption plate and the carbon dioxide adsorption plate, the length of the adsorption plate sliding into the purification chamber can be controlled, so that the adsorption rate of the adsorption plate for carbon dioxide or ethylene is controlled during internal air circulation and purification, the concentration of carbon dioxide and ethylene in the refrigerator room is precisely controlled, the efficiency of internal air circulation and purification is increased, and the service life of the refrigerator is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportions of the components in the drawings are only illustrative and are used to help understand the present invention, and are not specific limitations on the shapes and proportions of the components of the present invention. Those skilled in the art can select various possible shapes and proportions to implement the present invention according to specific circumstances under the guidance of the present invention.

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the overall structure of the present invention after the top plate is removed;

[0029] Figure 3 is a schematic diagram of the rear view structure of the present invention; Figure 1

[0030] Figure 4 is a schematic diagram of the rear view structure of the present invention; Figure 2

[0031] Figure 5 is a schematic diagram of the rear view structure of the present invention;

[0032] Figure 6 is a schematic diagram of the rear view structure of the present invention; Figure 5

[0033] Figure 7 ​​​Figure 1 is a schematic diagram of the inner side of the partial structure of the enclosure plate in the present application;

[0034] Figure 8 Figure 2 is a schematic diagram of the inner side of the partial structure of the enclosure plate in the present application;

[0035] Figure 9 Figure 3 is a schematic diagram of the outer side of the partial structure of the enclosure plate in the present application;

[0036] Figure 10 Figure 4 is a schematic diagram of the structure of the multifunctional on-off valve in the present application;

[0037] Figure 11 Figure 5 is a schematic diagram of the structure of the closing plate in the present application;

[0038] Figure 12 Figure 6 is a schematic diagram of the split structure of the circular ring valve in the present application;

[0039] Figure 13 Figure 7 is a schematic diagram of the split structure of the Roots blower in the present application;

[0040] Figure 14 Figure 8 is a schematic diagram of the transverse cross section of the Roots blower in the present application;

[0041] Figure 9 is a schematic diagram of the transverse cross section of the Roots blower in the present application;

[0042] 1, cold storage room body; 10, bottom plate; 100, purification chamber; 101, first cooling chamber; 102, rear cooling chamber; 11, enclosure plate; 110, cold storage door; 111, front partition plate; 12, top plate; 120, mounting cover plate; 13, short baffle; 14, first partition plate; 140, upper air inlet; 141, extension block; 142, electric air valve; 15, rear partition plate; 150, lower air inlet;

[0043] 2, adsorption device; 20, supporting block; 21, supporting plate; 210, L-shaped plate; 22, cylindrical roller; 220, first gear; 221, first servo motor; 23, ethylene adsorption plate; 24, carbon dioxide adsorption plate;

[0044] 3, pipeline system; 30, dirty gas pipe; 31, exhaust box; 310, exhaust port; 32, clean gas pipe; 320, branch pipe; 33, air supply box; 330, expansion port; 34, multifunctional on-off valve; 341, closing plate; 3411, through hole; 342, main shaft; 343, first through pipe; 344, second through pipe; 345, third through pipe; 346, circular ring valve; 3460, hole; 3461, crescent baffle; 347, rotating shaft; 3470, large gear; 348, second servo motor; 3480, small gear;

[0045] 4, Roots blower; 40, shell; 41, impeller; 410, blade shaft; 42, second gear; 43, rotating motor;

[0046] 5, refrigerator; 6, ethylene concentration detector. DETAILED DESCRIPTION

[0047] The above detailed description of the application is only used to explain the application and should not be understood as a limitation to the application. Based on the teaching of the application, any possible modification of the application can be conceived by the skilled person, which should be considered as falling within the scope of the application. The terms "mounting", "connecting" should be interpreted broadly, which can be direct connection or indirect connection through an intermediate medium.

[0048] The terms "central axis", "vertical", "horizontal", "front", "back", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the application. In addition, in the description of the application, the meaning of "several" is two or more, unless otherwise explicitly and specifically limited.

[0049] Please refer to Figures 1-14 As shown in the drawings, the application provides an energy-saving vegetable storage refrigerator with internal air circulation and purification function, which comprises a refrigerator house body 1, an adsorption device 2 for purifying gas is arranged at the right of the refrigerator house body 1, and a pipeline system 3 is arranged at the back side of the refrigerator house body 1;

[0050] The bottom of the refrigerator house body 1 is vertically and spacedly provided with a plurality of short baffles 13, and a first baffle 14 is arranged in parallel at the left side of the rightmost short baffle 13, and a rear baffle 15 is arranged in parallel at the left side of the remaining short baffles 13; the inside of the refrigerator house body 1 is sequentially divided into a plurality of working chambers from right to left, i.e. a purification chamber 100, a first cooling chamber 101 and two rear cooling chambers 102;

[0051] The pipeline system 3 comprises a dirty gas pipe 30, a plurality of exhaust boxes 31 communicated with the dirty gas pipe 30 and embedded in the rear walls of the plurality of working chambers, a clean gas pipe 32 for outputting gas into the plurality of working chambers, a plurality of gas supply boxes 33 communicated with the clean gas pipe 32, and a multifunctional on-off valve 34 rotatably connected in the exhaust box 31 and the closer gas supply box 33;

[0052] The multifunctional on-off valve 34 comprises a closing disc 341 rotatably connected to the left side wall of the exhaust box 31, a first through pipe 343 vertically inserted on the right side wall of the closing disc 341, a second through pipe 344, a third through pipe 345, a circular ring valve 346 rotatably connected in the gas conveying box 33, and a rotating shaft 347 connected between the closing disc 341 and the circular ring valve 346; a through hole 3411 is formed in the closing disc 341.

[0053] The cold storage room body 1 comprises a bottom plate 10, a surrounding plate 11 vertically installed at the top surface outer edge of the bottom plate 10, and a top plate 12 arranged at the top of the surrounding plate 11, and a cold storage door 110 is arranged on the front side wall of the surrounding plate 11 corresponding to the first cold room 101 and a plurality of adjacent rear cold rooms 102.

[0054] Each exhaust box 31 is correspondingly connected between the short baffle 13 and the corresponding adjacent rear partition plate 15; one end of the clean gas pipe 32 is connected to the right end of the cold storage room body 1, and the other end is closed; the first partition plate 14 is provided with an upper gas conveying hole 140, and the first partition plate 14 is provided with an electric air valve 142 for closing the clean gas pipe 32 or closing the upper gas conveying hole 140 at the connection of the clean gas pipe 32; the rear partition plate 15 is provided with a lower gas conveying hole 150 for aligning and connecting the through hole 3411, so as to cooperate with the multifunctional on-off valve 34 to open or close the connection between the adjacent two cold rooms.

[0055] Each exhaust box 31 is correspondingly connected between the short baffle 13 and the corresponding adjacent rear partition plate 15; the first partition plate 14 is provided with an upper gas conveying hole 140, and the first partition plate 14 is provided with an electric air valve 142 for closing the clean gas pipe 32 or closing the upper gas conveying hole 140 at the connection of the clean gas pipe 32; the rear partition plate 15 is provided with a lower gas conveying hole 150 for aligning and connecting the through hole 3411, so as to cooperate with the multifunctional on-off valve 34 to open or close the connection between the adjacent two cold rooms.

[0056] Specifically, the adsorption device 2 comprises a supporting block 20 fixed at the front side of the bottom plate 10, a supporting plate 21 fixed at the front side of the top plate 12, a plurality of cylindrical rollers 22 rotatably connected between the supporting block 20 and the supporting plate 21, an ethylene adsorption plate 23 and a carbon dioxide adsorption plate 24 slidably connected to the front side wall of the surrounding plate 11; the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 are both in the shape of a flat rectangular block and are perpendicular to the front side wall of the surrounding plate 11, half of the number of cylindrical rollers 22 are symmetrically arranged on both sides of the ethylene adsorption plate 23 and are in rolling contact with the ethylene adsorption plate 23, and the other half of the number of cylindrical rollers 22 are symmetrically arranged on both sides of the carbon dioxide adsorption plate 24 and are in rolling contact with the carbon dioxide adsorption plate 24, so as to facilitate the sliding of the two kinds of adsorption plates and the extension of the appropriate length into the purification chamber 100, thereby controlling the efficiency of adsorbing ethylene or carbon dioxide.

[0057] Further, the first partition plate 14 is provided with an extension block 141 at the upper gas outlet 140 for extending the upper gas outlet 140; when the electric gas valve 142 rotates backward to close the clean gas pipe 32, the upper gas outlet 140 is opened at the same time; when the electric gas valve 142 rotates forward to close the upper gas outlet 140, the clean gas pipe 32 is opened at the same time; so that the electric gas valve 142 can determine whether the gas purified by the purification chamber 100 enters the clean gas pipe 32 or the first cooling chamber 101.

[0058] The rear inner wall of the surrounding plate 11 is vertically fixed with a plurality of front partition plates 111, and all the front partition plates 111 are located in the purification chamber 100; the right end of the dirty gas pipe 30 is communicated between the rightmost front partition plate 111 and the surrounding plate 11; the purification chamber 100 is provided with a Roots blower 4 for sucking gas from the dirty gas pipe 30, and the purification chamber 100 is also provided with another Roots blower 4 for supplying gas to the clean gas pipe 32 or the first cooling chamber 101, thereby providing power for air circulation inside the cold storage house 1, and avoiding backflow of gas when the Roots blower 4 is stationary to act as a check valve.

[0059] In addition, the inner wall of the first cooling chamber 101 and each rear cooling chamber 102 is correspondingly provided with a refrigeration machine 5, so that the temperature in a specific cooling chamber can be individually controlled; the inner wall of the first cooling chamber 101 and each rear cooling chamber 102 is correspondingly provided with a carbon dioxide concentration detector and an ethylene concentration detector 6, so that the concentrations of carbon dioxide and ethylene in each cooling chamber can be conveniently detected, and the user can install specific gas detectors or adsorption plates as needed; the materials of the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 are activated carbon.

[0060] Specifically, the lengths of the first partition plate 14 and the rear partition plate 15 are equal to the inner width of the cold storage house 1, and the lengths of the front partition plate 111 and the short baffle 13 are less than the inner width of the cold storage house 1, so that the gas can only flow through the front gap, thereby prolonging the residence time of the gas in the corresponding chamber; in the purification chamber 100, the front partition plate 111, the short baffle 13, the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 are arranged alternately on the front and rear inner walls of the surrounding plate 11, so as to divide the purification chamber 100 into continuous S-shaped gas channels, thereby enabling the gas sucked into the purification chamber 100 from the dirty gas pipe 30 to fully contact the two adsorption plates to efficiently reduce the concentrations of carbon dioxide or ethylene.

[0061] Specifically, the two groups of cylindrical rollers 22 are coaxially connected with first gears 220 at the upper ends of the two groups of cylindrical rollers 22 corresponding to the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24, the two corresponding first gears 220 are engaged with each other, and the first servo motor 221 for driving the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 to slide back and forth is installed on the supporting plate 21 through the L-shaped plate 210, thereby providing power for the sliding of the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24.

[0062] Specifically, the left and right inner groove surfaces of the exhaust box 31 and the gas conveying box 33 are circular and coaxial, each exhaust box 31 is communicated between the corresponding short baffle 13 and the rear baffle 15, the communication position of the same exhaust box 31 with the exhaust pipe 30 is the exhaust port 310, the two exhaust ports 310 on the same exhaust box 31 are symmetrical to each other, the exhaust port 310, the lower gas conveying hole 150, the first through pipe 343, the second through pipe 344, the third through pipe 345 and the through hole 3411 are on the same circumference; the right side of the closure disc 341 is coaxially connected with the main shaft 342, so as to better bear the first through pipe 343, the second through pipe 344 and the third through pipe 345 on the closure disc 341; the center line of the first through pipe 343 and the third through pipe 345 passes through the center of the closure disc 341, and the second through pipe 344 and the through hole 3411 are on one side of the center line of the first through pipe 343 and the third through pipe 345.

[0063] The middle part of the rotating shaft 347 is coaxially connected with a large gear 3470, and the second servo motor 348 for rotating the multifunctional on-off valve 34 is installed in the inner wall of the back side of the surrounding plate 11 through bolts, and the output shaft of the second servo motor 348 is coaxially connected with a small gear 3480, and the large gear 3470 is engaged with the corresponding small gear 3480.

[0064] Specifically, the closure disc 341 is in the shape of a circular disc; the branch pipe 320 is communicated between the clean gas pipe 32 and the corresponding gas conveying box 33, the circular ring valve 346 is in the shape of a cylindrical cylinder, the hole 3460 is formed in the circular arc curved surface wall of the circular ring valve 346 corresponding to the communication position of the branch pipe 320, and only when the circular ring valve 346 is rotated to align the hole 3460 with the branch pipe 320, the gas in the clean gas pipe 32 can be output to the corresponding cold chamber through the gas conveying box 33; the two sides of the circular ring valve 346 are fixedly installed with crescent baffles 3461, so that when the hole 3460 is not aligned with the branch pipe 320, the crescent baffles can close the gas conveying box 33 to prevent the gas conveying box 33 from leaking into the corresponding cold chamber, and the gas conveying box 33 is provided with an expansion opening 330 corresponding to the through part of the crescent baffle 3461.

[0065] In the same multifunctional on-off valve 34, the closing disc 341 rotates, when the second through pipe 344 connects the corresponding two exhaust ports 310, the closing disc 341 closes the lower gas inlet hole 150, the ring valve 346 rotates to the position where the hole 3460 is aligned with the branch pipe 320 at the same time, at this time, the dirty gas pipe 30 is connected at the second through pipe 344, while the two adjacent cold rooms on the left are not connected, and the clean gas pipe 32 can be connected to the left cold room at this position; when the third through pipe 345 connects the corresponding two exhaust ports 310, the closing disc 341 closes the lower gas inlet hole 150, and the hole 3460 is not connected with the branch pipe 320; when the closing disc 341 rotates to block the corresponding left exhaust port 310 and the lower gas inlet hole 150 at the same time, the corresponding right exhaust port 310 is connected between the corresponding first partition plate 14 and the corresponding rear partition plate 15, at this time, the gas in the right cold room at this position can be sucked into the right exhaust port 310 at this position, and the hole 3460 is not connected with the branch pipe 320; when the first through pipe 343 connects the corresponding two exhaust ports 310, the through hole 3411 is aligned and connected with the lower gas inlet hole 150, at this time, the two adjacent cold rooms at this position are connected, but the two adjacent cold rooms at this position are not directly connected with the dirty gas pipe 30 at this position, and the hole 3460 is not connected with the branch pipe 320.

[0066] In addition, the Roots blower 4 comprises a shell 40, two impellers 41 always abutting each other and rotatingly connected between the bottom plate 10 and the top plate 12, and a matching impeller shaft 410, the second gear 42 is coaxially connected on the two impeller shafts 410, and the rotating motor 43 for driving the Roots blower 4 to operate is installed on the top plate 12 through the installation cover plate 120; the length of the impeller 41 is equal to the inner height of the cold storage house 1, so as to completely block the connection between the purification chamber 100 and the dirty gas pipe 30 and the clean gas pipe 32 when it is stopped, thereby maintaining different temperatures or different gas concentrations in each cold room.

[0067] The working principle of the present application: according to the need to adjust the set temperature of each refrigerator 5. When the carbon dioxide concentration detector and ethylene concentration detector 6 detects the corresponding concentration is too high, if you want to unify the temperature, carbon dioxide concentration and ethylene concentration in the cold storage room body 1, the control electric air valve 142 is rotated back to close the right end of the clean gas pipe 32, open the upper gas hole 140, and then control all the second servo motor 348 to drive all the closing disc 341 to rotate to all the first through pipe 343 to connect the corresponding two exhaust port 310, at the same time all the through hole 3411 and the corresponding lower gas hole 150 are aligned to communicate, at this time, open all the roots blower 4, then the left front of the leftmost back cooling room 102 is sucked into the left end of the dirty gas pipe 30, and the gas enters the purification chamber 100 from the right end of the dirty gas pipe 30. According to the concentration, start the first servo motor 221 to control the sliding length of the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24, then the gas is adsorbed by the ethylene adsorption plate 23 and the carbon dioxide adsorption plate 24 and enters the first cooling chamber 101 through the upper gas hole 140, then enters the back cooling room 102 through the nearest lower gas hole 150, and then enters the adjacent back cooling room through the subsequent lower gas hole 150, and finally returns to the left end of the dirty gas pipe 30 to complete the internal circulation of the cold storage room body 1.

[0068] If you want to adjust the temperature and gas concentration in the first cooling chamber 101 alone, control the electric air valve 142 to rotate back to close the right end of the clean gas pipe 32, open the upper gas hole 140, and drive the first cooling chamber 101 corresponding closing disc 341 to rotate to block the corresponding left exhaust port 310 and lower gas hole 150 at the same time, and the corresponding right exhaust port 310 is connected to the corresponding first cooling chamber 101, and the other annular valve 346 is rotated to the hole 3460 not aligned with the branch pipe 320. At this time, open the roots blower 4 to suck the gas in the first cooling chamber 101 into the right exhaust port 310, and the gas enters the first cooling chamber 101 through the purification chamber 100 from the upper gas hole 140 to complete the internal circulation of the gas in the first cooling chamber 101.

[0069] If the temperature and gas concentration of any back cooling chamber 102 are to be adjusted separately, the control electric air valve 142 is turned to the left to open the right end of the clean gas pipe 32, close the upper gas inlet hole 140, and by controlling the second servo motor 348, the first second through pipe 344 on the right of the back cooling chamber 102 is connected to the corresponding two exhaust ports 310, and the two exhaust ports on the other exhaust boxes 31 on the right of the back cooling chamber 102 are connected to the corresponding two exhaust ports 310 through the third through pipe 345, while the left sealing plate 341 of the back cooling chamber 102 simultaneously seals the lower gas inlet hole 150 and the left exhaust port 310 on the exhaust box 31. At this time, the Roots blower 4 is turned on, and the gas in the back cooling chamber 102 enters the right exhaust port 310 on the left exhaust box 31, so that the gas enters the purification chamber 100, and the purified gas enters the back cooling chamber 102 through the clean gas pipe 32 and the aligned hole 3460 of the branch pipe 320 to complete the internal circulation of the gas in the back cooling chamber.

[0070] Furthermore, it should be noted that the electric air valve 142, the first servo motor 221, the second servo motor 348, the Roots blower 4, the rotating motor 43, the refrigeration machine 5, the carbon dioxide concentration detector, the ethylene concentration detector 6 and the matching controller involved in the present application are all general standard parts or components known to those skilled in the art, the structure and principle of which can be known by technical personnel through technical manuals or through conventional experimental methods. In the idle place of the device, all the above-mentioned electrical components, power elements, electrical components and matching controllers and power sources are connected by wires. The specific connection means should refer to the working principle in the present application. The electrical components are connected in the order of working sequence, and the detailed connection means are all known in the art.

[0071] Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. An energy-saving vegetable storage cold storage with internal air circulation and purification function, comprising a cold storage room (1), characterized in that: An adsorption device (2) for purifying gas is provided on the right side of the cold storage body (1), and a pipeline system (3) is provided on the rear side of the cold storage body (1). The bottom of the cold storage room (1) is provided with several short baffles (13) arranged vertically at intervals. The rightmost short baffle (13) has a first partition (14) arranged parallel to its left side, and the remaining short baffles (13) have rear partitions (15) arranged parallel to their left sides. The interior of the cold storage room (1) is divided into several working rooms from right to left: a purification room (100), a first cold room (101), and two rear cold rooms (102). The piping system (3) includes a waste gas pipe (30), a number of exhaust boxes (31) connected to the waste gas pipe (30) and embedded in the rear wall of a number of chambers, a clean gas pipe (32) for outputting gas to a number of chambers, a number of gas delivery boxes (33) connected to the clean gas pipe (32), and a multi-functional on / off valve (34) that is rotatably connected to the exhaust box (31) and the nearest gas delivery box (33). The multi-functional on / off valve (34) includes a closed disc (341) rotatably connected to the left side wall of the exhaust box (31), a first through pipe (343), a second through pipe (344), a third through pipe (345) vertically inserted into the right side wall of the closed disc (341), a circular valve (346) rotatably connected to the gas delivery box (33), and a rotating shaft (347) connecting the closed disc (341) and the circular valve (346); the closed disc (341) is provided with a through hole (3411); The cold storage room body (1) includes a base plate (10), a partition plate (11) vertically installed at the outer edge of the top surface of the base plate (10), and a top plate (12) provided on the top of the partition plate (11). The front side wall of the partition plate (11) is provided with cold storage doors (110) corresponding to the first cold room (101) and several adjacent rear cold rooms (102). Each of the exhaust boxes (31) is connected between the short baffle (13) and the corresponding nearby rear partition (15); one end of the clean air pipe (32) is connected to the right end of the cold storage body (1), and the other end is closed; the first partition (14) is provided with an upper air outlet (140), and the first partition (14) is provided with an electric air valve (142) at the connection of the clean air pipe (32) for closing the clean air pipe (32) or closing the upper air outlet (140); the rear partition (15) is provided with a lower air outlet (150) for aligning with and connecting the through hole (3411). The adsorption device (2) includes a support block (20) fixed to the front side of the base plate (10), a support plate (21) fixed to the front side of the top plate (12), a plurality of cylindrical rollers (22) rotatably connected between the support block (20) and the support plate (21), and an ethylene adsorption plate (23) and a carbon dioxide adsorption plate (24) slidably connected to the front side wall of the enclosure plate (11). The ethylene adsorption plate (23) and the carbon dioxide adsorption plate (24) are both flat rectangular blocks and are both perpendicular to the front side wall of the enclosure plate (11). Half of the cylindrical rollers (22) are symmetrically arranged on both sides of the ethylene adsorption plate (23) and roll in contact with the ethylene adsorption plate (23). The other half of the cylindrical rollers (22) are symmetrically arranged on both sides of the carbon dioxide adsorption plate (24) and roll in contact with the carbon dioxide adsorption plate (24).

2. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 1, characterized in that: The first partition (14) is equipped with an extension block (141) for extending the upper air inlet (140) at the upper air inlet (140); when the electric air valve (142) rotates backward to close the clean air pipe (32), the upper air inlet (140) is opened at the same time; when the electric air valve (142) rotates forward to close the upper air inlet (140), the clean air pipe (32) is opened at the same time. Several front partitions (111) are vertically fixed on the inner side wall of the rear of the enclosure (11), and all of the front partitions (111) are located in the purification chamber (100); the right end of the waste gas pipe (30) is connected between the rightmost front partition (111) and the enclosure (11); a Roots blower (4) for drawing air from the waste gas pipe (30) is installed in the purification chamber (100), and another Roots blower (4) for supplying air to the clean air pipe (32) or to the first cooling chamber (101) is also installed in the purification chamber (100).

3. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 2, characterized in that: A refrigeration unit (5) is installed on the inner wall of the first cooling chamber (101) and each of the subsequent cooling chambers (102); a carbon dioxide concentration detector and an ethylene concentration detector (6) are installed on the inner wall of the first cooling chamber (101) and each of the subsequent cooling chambers (102); the ethylene adsorption plate (23) and the carbon dioxide adsorption plate (24) are made of activated carbon.

4. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 3, characterized in that: The lengths of the first partition (14) and the rear partition (15) are both equal to the inner width of the cold storage room body (1), and the lengths of the front partition (111) and the short baffle (13) are both less than the inner width of the cold storage room body (1). In the purification chamber (100), the front partition (111), the short baffle (13), the ethylene adsorption plate (23) and the carbon dioxide adsorption plate (24) are staggered on the front and rear inner sidewalls of the enclosure (11), thereby dividing the purification chamber (100) into a continuous S-shaped air passage.

5. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 4, characterized in that: The cylindrical rollers (22) are arranged in pairs. The upper ends of the two sets of cylindrical rollers (22) corresponding to the ethylene adsorption plate (23) and the carbon dioxide adsorption plate (24) are coaxially connected with a first gear (220). The two corresponding first gears (220) mesh with each other. A first servo motor (221) for driving the ethylene adsorption plate (23) and the carbon dioxide adsorption plate (24) to slide back and forth is installed on the support plate (21) through an L-shaped plate (210).

6. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 5, characterized in that: The left and right inner grooves of the exhaust box (31) and the air supply box (33) are circular and coaxial. Each exhaust box (31) is connected to the corresponding short baffle (13) and the rear partition (15). The connection between the same exhaust box (31) and the waste gas pipe (30) is the exhaust port (310). The two exhaust ports (310) on the same exhaust box (31) are symmetrical to each other. The exhaust port (310), the lower air supply hole (150), and the first through pipe (343) are also connected. The second through pipe (344), the third through pipe (345), and the through hole (3411) are all on the same circumference; the main shaft (342) is coaxially connected to the right side of the closed disk (341); the line connecting the centers of the first through pipe (343) and the third through pipe (345) passes through the center of the closed disk (341); the second through pipe (344) and the through hole (3411) are both located on one side of the line connecting the centers of the first through pipe (343) and the third through pipe (345); A large gear (3470) is coaxially connected to the middle of the rotating shaft (347). A second servo motor (348) for rotating the multi-functional on / off valve (34) is installed in the rear side wall of the enclosure (11) by bolts. A small gear (3480) is coaxially connected to the output shaft of the second servo motor (348). The large gear (3470) and the corresponding small gear (3480) mesh with each other.

7. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 6, characterized in that: The closed disc (341) is in the shape of a disc; a branch pipe (320) is connected between the clean air pipe (32) and the corresponding gas delivery box (33); the annular valve (346) is in the shape of a cylinder; a hole (3460) is opened on the arc-shaped wall of the annular valve (346) corresponding to the connection of the branch pipe (320); crescent baffles (3461) are fixedly installed on both sides of the annular valve (346); and an expansion port (330) is opened in the gas delivery box (33) corresponding to the through-hole of the crescent baffle (3461) to facilitate the output of gas. In the same multi-functional on / off valve (34), when the closing disc (341) rotates, and the second pipe (344) connects to the two corresponding exhaust ports (310), the closing disc (341) closes the lower air inlet (150), and the annular valve (346) simultaneously rotates to the position where the hole (3460) aligns with the branch pipe (320); when the third pipe (345) connects to the two corresponding exhaust ports (310), the closing disc (341) closes the lower air inlet (150), and the hole (3460) is not connected to the branch pipe (320). When the sealing disc (341) rotates to simultaneously block the corresponding left-side exhaust port (310) and the lower air outlet (150), the corresponding right-side exhaust port (310) is connected to the corresponding first partition (14) and the corresponding rear partition (15), and the hole (3460) is not connected to the branch pipe (320); when the first through pipe (343) is connected to the corresponding two exhaust ports (310), the through hole (3411) is aligned and connected to the lower air outlet (150), and the hole (3460) is not connected to the branch pipe (320).

8. The energy-saving vegetable storage cold storage with internal air circulation and purification function according to claim 7, characterized in that: The Roots blower (4) includes a housing (40), two impellers (41) that are always connected to each other and rotatably connected between the bottom plate (10) and the top plate (12), and matching impeller shafts (410). A second gear (42) is coaxially connected to each of the two impeller shafts (410). A rotating motor (43) for driving the Roots blower (4) is installed on the top plate (12) through a cover plate (120). The length of the impeller (41) is equal to the inner height of the cold storage room body (1).

Images