Buffer chamber for cold store ventilation

Abstract

The application relates to the field of low-temperature storage technology, and provides a buffer chamber for cold storage ventilation, which comprises a chamber body arranged on the wall of a cold storage, and an air inlet chamber and an air outlet chamber are arranged in the chamber body; one side of the air inlet chamber is communicated with the cold storage, the other side of the air inlet chamber is connected with air inlet equipment, so that external air is sent into the cold storage through the air inlet chamber; one side of the air outlet chamber is communicated with the cold storage, and the other side of the air outlet chamber is connected with air outlet equipment, so that air in the cold storage is discharged through the air outlet chamber. The chamber body is arranged on the wall of the cold storage, so that the cold storage is indirectly communicated with the outside world through the air inlet chamber and the air outlet chamber, then the external air enters the cold storage through the air inlet chamber, and the air in the cold storage is discharged to the outside world through the air outlet chamber; when the cold storage is ventilated, the chamber body forms a buffer chamber, the defects of dew condensation and icing of the air inlet pipeline and the air outlet are effectively avoided, and the normal ventilation work of the cold storage is ensured.

Description

Technical Field

[0001] This invention relates to the field of low-temperature storage technology, and more particularly to a buffer room for ventilation in cold storage. Background Technology

[0002] Cold storage facilities require ventilation when storing certain items, such as fruits, flowers, and vegetables. This is because these items will undergo anaerobic respiration in an oxygen-deficient storage environment, consuming their own organic matter and producing harmful substances such as ethanol and acetaldehyde. Excessive accumulation of these harmful substances can lead to physiological imbalances, causing the items to discolor, develop an off-flavor, and spoil, thus shortening their refrigerated storage period.

[0003] Current cold storage ventilation methods involve introducing fresh outside air into the cold storage through air intake equipment and expelling the air from the cold storage through exhaust equipment. While this method achieves the purpose of ventilation, the significant temperature difference between the inside and outside of the cold storage can easily lead to a "cold bridge effect" at the junctions of the air intake and exhaust ducts with the cold storage. This means that cold air from inside the cold storage can cross the cold bridge and enter the outside, causing condensation or even rapid freezing at the locations of the air intake and exhaust ducts due to the temperature difference, thus affecting the normal operation of the ventilation system. Summary of the Invention

[0004] This invention provides a buffer room for cold storage ventilation. The buffer room indirectly connects the air inlet duct and the air outlet to the outside of the cold storage, which can effectively avoid the "cold bridge effect" at the junction of the air inlet duct and the air outlet with the cold storage, so as to achieve normal ventilation of the cold storage.

[0005] This invention provides a buffer room for cold storage ventilation, comprising:

[0006] The compartment body is installed in the wall of the cold storage, and the internal structure of the compartment body includes an air intake compartment and an exhaust compartment;

[0007] One side of the air intake chamber is connected to the cold storage, and the other side of the air intake chamber is connected to the air intake equipment to send outside air into the cold storage through the air intake chamber;

[0008] One side of the exhaust chamber is connected to the cold storage, and the other side of the exhaust chamber is connected to the exhaust ventilation equipment to exhaust the air inside the cold storage through the exhaust chamber.

[0009] According to an embodiment of the present invention, a buffer chamber for cold storage ventilation is provided, wherein the air intake chamber is provided with an air intake interface and an air intake door, the air intake chamber is connected to the air intake equipment through the air intake interface, and the air intake chamber is connected to the cold storage through the air intake door.

[0010] According to an embodiment of the present invention, a buffer chamber for cold storage ventilation is provided, wherein the air inlet is a flange interface and the air inlet is disposed opposite to the air inlet door.

[0011] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, wherein the side wall of the exhaust room is provided with an exhaust port and an exhaust door, the exhaust room is connected to the exhaust equipment through the exhaust port, and the exhaust room is connected to the cold storage through the exhaust door.

[0012] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, wherein the exhaust port is a flange port and the exhaust port is disposed opposite to the exhaust door.

[0013] According to an embodiment of the present invention, a buffer chamber for cold storage ventilation is provided, wherein the air inlet chamber and the air outlet chamber are arranged side by side along the width direction of the chamber body;

[0014] Alternatively, the intake chamber and the exhaust chamber are stacked along the height direction of the chamber body.

[0015] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, wherein the side wall of the air inlet room is provided with an air inlet room maintenance door, and the side wall of the exhaust room is provided with an exhaust room maintenance door.

[0016] When the intake chamber and the exhaust chamber are stacked along the height direction of the chamber body, the chamber body is provided with ladders corresponding to the positions of the intake chamber access door and / or the exhaust chamber access door.

[0017] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, which penetrates the wall of the cold storage and is provided with a first insulation pipe and a second insulation pipe;

[0018] The first end of the first insulation pipe is connected to the air inlet pipe installed in the cold storage, and the second end of the first insulation pipe is connected to the air inlet valve.

[0019] The first end of the second insulation pipe is connected to the exhaust vent of the cold storage, and the second end of the second insulation pipe is connected to the exhaust valve.

[0020] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, wherein the air inlet duct is provided with a slope section at one end near the air inlet door, and the slope section is inclined downward from the air inlet duct toward the air inlet door.

[0021] According to an embodiment of the present invention, a buffer room for cold storage ventilation is provided, wherein a water collection container is provided at the lowest point of the slope section;

[0022] The water collection container is connected to a drain pipe, and the end of the drain pipe away from the water collection container is connected to a water storage container.

[0023] The buffer chamber for cold storage ventilation provided by this invention, by setting the chamber body at the door, allows the cold storage to be indirectly connected to the air intake equipment through the air intake chamber and indirectly connected to the exhaust equipment through the exhaust chamber. Outside air enters the cold storage through the air intake chamber, and the air in the cold storage is discharged to the outside through the exhaust chamber. This design creates a buffer chamber when the cold storage is ventilated, effectively blocking the "cold bridge effect" and avoiding the defects of condensation and icing at the air intake duct and exhaust vent, so as to enable the cold storage to ventilate normally. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram showing the location and installation of the buffer room for cold storage ventilation provided by the present invention;

[0026] Figure 2 This is a partial structural schematic diagram of the buffer room for cold storage ventilation provided by the present invention;

[0027] Figure 3 This is a partial structural diagram of the exhaust chamber in the buffer room for cold storage ventilation provided by the present invention;

[0028] Figure 4 This is a schematic diagram of the stacked buffer chamber arrangement for cold storage ventilation provided by the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the buffer rooms for cold storage ventilation provided by the present invention, arranged side by side;

[0030] Figure 6 This is one of the installation diagrams of the side-by-side arrangement of buffer rooms for cold storage ventilation provided by the present invention;

[0031] Figure 7 This is the second schematic diagram of the installation of the buffer rooms for cold storage ventilation provided by the present invention, which are arranged side by side.

[0032] Figure label:

[0033] 100. Main chamber body; 101. Intake chamber; 1011. Intake interface; 1012. Intake valve; 1013. Intake chamber access door; 102. Exhaust chamber; 1021. Exhaust interface; 1022. Exhaust valve; 1023. Exhaust chamber access door;

[0034] 200. Cold storage; 201. Air inlet duct; 2011. Slope section; 202. Exhaust vent; 2021. Fire damper; 204. Water collection container; 205. Drain pipe; 2051. Ball valve; 206. Water storage container; 207. First insulation pipe; 208. Second insulation pipe;

[0035] 300. Passageway; 301. Air inlet duct; 302. Air inlet fan; 303. Exhaust duct; 304. Exhaust fan;

[0036] 400. Expansion joint. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0039] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] The following is combined Figures 1 to 3 The embodiments of the present invention will be described below. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any limitation on the present invention.

[0042] See Figures 1 to 7 This invention provides a buffer room for ventilation of a cold storage facility. The buffer room includes a room body 100, which is disposed on the wall of a cold storage facility 200. A door opening is reserved in the wall of the cold storage facility 200, and the room body 100 is positioned corresponding to the door opening.

[0043] like Figure 4 and Figure 5 As shown, the internal structure of the compartment body 100 includes an air intake compartment 101 and an exhaust compartment 102. One side of the air intake compartment 101 is connected to the cold storage 200 through a doorway pre-reserved in the wall of the cold storage 200, and the other side of the air intake compartment 101 is connected to an air intake device, which can send outside air into the cold storage 200 through the air intake compartment 101. One side of the exhaust compartment 102 is connected to the cold storage 200 through another doorway pre-reserved in the wall of the cold storage 200, and the other side of the exhaust compartment 102 is connected to an exhaust device, which can exhaust the air inside the cold storage 200 to the outside of the cold storage 200 through the exhaust compartment 102.

[0044] It is understood that by setting a compartment body 100 on the wall of the cold storage 200, the cold storage 200 is indirectly connected to the air intake equipment through the air intake compartment 101, and then indirectly connected to the exhaust equipment through the exhaust compartment 102. This is equivalent to the cold storage 200 being able to connect to the outside world through the space buffer of the air intake compartment 101 and the exhaust compartment 102. This can effectively avoid the formation of a "cold bridge effect" at the crossing point when the pipes in the cold storage 200 pass through the inner wall of the cold storage 200, that is, the occurrence of condensation and icing at the air intake pipe 201 and the exhaust port 202. This reduces the number of defrosting times of the cooling equipment, improves the cooling effect of the cooling equipment, and maintains the high efficiency and stability of the cooling equipment.

[0045] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the cold storage 200 can be a three-dimensional shape composed of prefabricated insulation panels or a three-dimensional shape composed of civil engineering walls and insulation layers.

[0046] In some embodiments, the compartment body 100 may be made of at least one of PU sandwich panels, EPS sandwich panels, XPS sandwich panels, rock wool sandwich panels, PIR sandwich panels, PF sandwich panels, RW sandwich panels, and foamed metal sandwich panels, so that the air intake compartment 101 and the exhaust compartment 102 can form a low-temperature buffer room for pre-cooling and cold preservation, preventing fresh air and exhaust air from disrupting the temperature uniformity within the cold storage 200. The length, width, and height of the compartment body 100 are determined based on the dimensions of the door openings made in the walls of the cold storage 200, and are not specifically limited herein.

[0047] Specifically, such as Figure 4 and Figure 5 As shown, the side wall of the air intake chamber 101 is provided with an air intake interface 1011 and an air intake door 1012. The air intake chamber 101 is connected to the air intake equipment through the air intake interface 1011 and is connected to the cold storage 200 through the air intake door 1012.

[0048] Among them, the air inlet interface 1011 is a flange interface. The flange interface can not only ensure the sealing and reliability of the connection between the air inlet equipment and the air inlet chamber 101, but also facilitate the connection of pipelines in the air inlet equipment.

[0049] Furthermore, the air inlet 1011 and the air inlet door 1012 are arranged opposite each other to shorten the gas flow path. This allows the gas to enter the air inlet chamber 101 from the air inlet 101 and then directly enter the cold storage 200 through the open air inlet door 1012. In other words, the air entering the air inlet chamber 101 from the air inlet 101 can directly enter the cold storage 200 through the air inlet door 1012, avoiding air volume loss and effectively improving air intake efficiency.

[0050] Of course, the air inlet 1011 can also be set on the top wall of the air inlet chamber 101 or on any side wall of the air inlet chamber 101, as long as it can ensure that the air supplied by the air inlet equipment into the air inlet chamber 101 can smoothly enter the cold storage 200 through the air inlet door 1012.

[0051] Specifically, such as Figure 4 and Figure 5 As shown, the side wall of the exhaust chamber 102 is provided with an exhaust port 1021 and an exhaust door 1022. The exhaust chamber 102 is connected to the exhaust equipment through the exhaust port 1021 and is connected to the cold storage 200 through the exhaust door 1022.

[0052] Similar to the air inlet 1011 mentioned above, the exhaust port 1021 is also a flange port. The flange port not only ensures the sealing and reliability of the connection between the exhaust equipment and the exhaust chamber 102, but also facilitates the connection of pipelines in the exhaust equipment.

[0053] Furthermore, the exhaust port 1021 is arranged opposite to the exhaust door 1022 so that the gas flow path is shorter, which facilitates the gas to enter the exhaust chamber 102 from the open exhaust door 1022 and then be quickly discharged from the interior of the cold storage 200. That is, the air entering the exhaust chamber 102 from the exhaust door 1022 can be directly discharged from the exhaust port 1021, which can avoid air volume loss and effectively improve exhaust efficiency.

[0054] Of course, the exhaust port 1021 can also be set on the top wall of the exhaust chamber 102 or any side wall of the exhaust chamber 102, as long as the air entering the exhaust chamber 102 from the exhaust door 1022 can be smoothly discharged by the exhaust equipment.

[0055] The buffer chamber for cold storage ventilation provided in this embodiment of the invention can be connected to or isolated from the cold storage 200 by the opening and closing states of the air inlet door 1012 and the exhaust door 1022. When the cold storage 200 needs ventilation, the air inlet door 1012 and the exhaust door 1022 are opened simultaneously, the air inlet chamber 101 is connected to the cold storage 200, and the fresh air entering the air inlet chamber 101 can enter the cold storage 200; the exhaust door 1022 is connected to the cold storage 200, and the exhaust gas in the cold storage 200 can be discharged to the outside of the cold storage 200 through the exhaust door 1022.

[0056] When the cold storage 200 does not require ventilation, both the intake valve 1012 and the exhaust valve 1022 are closed to prevent the loss of cold air from the cold storage 200. The intake valve 1012 and the exhaust valve 1022 can be configured to open manually, push-pull manually, or push-pull electrically, meaning they can be controlled electrically or manually to open or close.

[0057] In some embodiments of the present invention, such as Figure 4 As shown, the intake chamber 101 and the exhaust chamber 102 are stacked along the height direction of the chamber body 100.

[0058] In some embodiments of the present invention, such as Figure 5 As shown, the intake chamber 101 and the exhaust chamber 102 can be arranged side by side along the width direction of the chamber body 100.

[0059] For example, when the door openings in the wall of the cold storage 200 are stacked along the height direction of the cold storage 200, the air intake chamber 101 and the exhaust chamber 102 can be stacked along the height direction of the chamber body 100, so as to avoid increasing the floor space of the chamber body 100 and improve the space utilization of the cold storage 200.

[0060] To improve access to the intake chamber 101 or exhaust chamber 102, a ladder can be installed on the outer wall of the chamber body 100 when performing maintenance on the intake chamber 101 or exhaust chamber 102.

[0061] For example, when the door openings in the wall of the cold storage 200 are arranged side by side along the width of the cold storage 200, the air intake chamber 101 and the exhaust chamber 102 can be arranged side by side along the width of the chamber body 100 to avoid the chamber body 100 being too tall, which would make maintenance inconvenient.

[0062] When the intake chamber 101 and the exhaust chamber 102 are arranged side by side along the width direction of the chamber body 100, it is not necessary to install a ladder on the outer wall of the chamber body 100 when maintaining the intake chamber 101 or the exhaust chamber 102.

[0063] In some embodiments of the present invention, such as Figures 1 to 4 As shown, when the air intake chamber 101 and the exhaust chamber 102 are stacked along the height direction of the chamber body 100, the air intake chamber 101 can be located above the exhaust chamber 102. Since one side of the air intake chamber 101 is connected to the air intake equipment and the other side is connected to the cold storage 200, hot air from the outside is sent into the cold storage 200; one side of the exhaust chamber 102 is connected to the exhaust equipment and the other side is connected to the cold storage 200, exhausting waste gases such as carbon dioxide from the cold storage 200 to the outside.

[0064] Because hot air rises and cold air sinks, by positioning the air intake chamber 101 above the exhaust chamber 102, it is convenient for the replacement gas in the air intake chamber 101 to enter the cold storage 200. Simultaneously, it facilitates the rapid discharge of waste gases such as carbon dioxide from the cold storage 200 to the outside. Furthermore, the carbon dioxide and other substances produced by the fruits and vegetables stored in the cold storage 200 are denser than air and will accumulate at the bottom of the cold storage 200, further facilitating the rapid discharge of waste gases from the cold storage 200 to the outside.

[0065] like Figures 3 to 5As shown, in some embodiments of the present invention, both the intake chamber 101 and the exhaust chamber 102 are provided with maintenance doors. Specifically, an intake chamber maintenance door 1013 is provided on the side wall of the intake chamber 101, located in an area of ​​the intake chamber 101 with a relatively large space, facilitating access to the intake chamber 101 for maintenance and component replacement. Similarly, an exhaust chamber maintenance door 1023 is provided on the side wall of the exhaust chamber 102, also located in an area of ​​the exhaust chamber 102 with a relatively large space, facilitating access to the exhaust chamber 102 for maintenance and component replacement.

[0066] Among them, the air intake compartment inspection door 1013 and the exhaust compartment inspection door 1023 are normally closed. They can be opened when maintenance or manual ventilation is required. Maintenance is usually carried out during non-ventilation periods, so it will not affect the ventilation of the cold storage 200.

[0067] like Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the air intake chamber 101 and the exhaust chamber 102 can be arranged between the cold storage 200 and the passageway 300, and the air intake equipment and the exhaust equipment can be arranged along the top of the passageway 300.

[0068] The air intake equipment includes an air intake fan 302 and a corresponding air intake duct 301. The air intake duct 301 is connected to the air intake chamber 101 via an air intake interface 1011. The air intake fan 302 is installed on the air intake duct 301 to deliver outside air into the air intake chamber 101 through the air intake duct 301. The air intake duct 301 can be arranged along the top of the passageway 300 to avoid obstructing passage within the passageway 300.

[0069] The exhaust system includes an exhaust fan 304 and a corresponding exhaust duct 303. The exhaust duct 303 is connected to the exhaust chamber 102 via an exhaust port 1021. The exhaust fan 304 is installed on the exhaust duct 303 to exhaust the exhaust gas inside the cold storage 200 outside the cold storage 200. The exhaust duct 303 is arranged parallel to the air inlet duct 301 and runs along the top of the passageway 300.

[0070] Furthermore, in order to improve the sealing between the air inlet duct 301 and the air inlet interface 1011, butyl tape can be wrapped around the connection between the air inlet duct 301 and the air inlet interface 1011 for sealing. Waterproofing can also be done at the location of the air inlet interface 1011, or a 4mm to 6mm rubber gasket can be installed for sealing.

[0071] Similarly, to improve the sealing between the exhaust duct 303 and the exhaust port 1021, the same method as described above can be used, which will not be elaborated here.

[0072] like Figure 2 As shown, in some embodiments of the present invention, a first doorway and a second doorway are provided along the height of the wall of the cold storage 200. A first insulation pipe 207 is installed in the first doorway, and a second insulation pipe 208 is installed in the second doorway. Both the first insulation pipe 207 and the second insulation pipe 208 are made of rubber fiberglass cloth. For example, fireproof insulation pipes made of silicone rubber cloth or EPDM rubber cloth.

[0073] Since the thermal conductivity of sheet metal ducts is 80 W / mK, while that of silicone rubber cloth and EPDM rubber cloth is 0.03–0.3 W / mK, this embodiment of the invention uses silicone rubber cloth and EPDM rubber cloth as the first insulation pipe 207 and the second insulation pipe 208. This reduces the thermal conductivity at the connection point, thereby increasing the thermal resistance at the connection point and effectively preventing the cold air from escaping from the cold storage. Furthermore, since silicone rubber cloth and EPDM rubber cloth are flexible components, they can adapt to the deformation caused by foundation settlement of the compartment body 100, thus improving the stability of the compartment body 100.

[0074] The first end of the first insulation pipe 207 can be connected to the door frame of the intake valve 1012 in the intake chamber 101. Specifically, the first insulation pipe 207 can be bonded to the door frame of the intake valve 1012, or it can be attached to the door frame of the intake valve 1012, pressed with a pressure strip, and then fixed with fasteners such as rivets. In addition, any connection method is acceptable as long as it can ensure the sealing between the first insulation pipe 207 and the intake valve 1012.

[0075] The second end of the first insulation pipe 207 can be connected to the air inlet pipe 201 inside the cold storage 200 via a flange. That is, a flange is connected to the second end of the first insulation pipe 207, and the air inlet pipe inside the cold storage 200 is quickly connected to the first insulation pipe 207 via the flange. Of course, any connection method is acceptable as long as it can ensure the airtightness between the first insulation pipe 207 and the air inlet pipe.

[0076] The first end of the second insulation pipe 208 is connected to the door frame of the exhaust door 1022. The specific connection method is the same as that of the first insulation pipe 207, and will not be described in detail here. The second end of the second insulation pipe 208 can be connected to louvers through flanges or other connectors to form an exhaust vent 202. A 70°C fire damper 2021 is installed within 200mm of the exhaust vent 202. When a fire occurs and the smoke temperature reaches 70°C, the smoke is already ignited, and the fire damper automatically closes to prevent the fire from spreading.

[0077] In some embodiments of the present invention, the height of the exhaust vent 202 from the ground is less than or equal to 300 mm to meet the standard setting of the exhaust vent. Additionally, an insect screen can be installed at the exhaust vent 202.

[0078] like Figure 1 and Figure 6 As shown, in order to facilitate the discharge of condensate and prevent it from accumulating inside the air intake duct 201, a slope section 2011 is provided at one end of the air intake duct 201 near the air intake valve 1012. The slope section 2011 slopes downward from the air intake duct 201 towards the air intake valve 1012.

[0079] Furthermore, in order to better achieve the effect of condensate collection, the slope of slope section 2011 is not less than 0.003 degrees.

[0080] like Figure 1 and Figure 6 As shown, in some embodiments of the present invention, a water collection container 204 is provided at the lowest point of the slope section 2011 to collect condensate discharged from the air intake pipe 201; a drain pipe 205 is connected to the water collection container 204, and the end of the drain pipe 205 away from the water collection container 204 is connected to a water storage container 206 or a drain floor drain.

[0081] The drain pipe 205 can be a DN20 condensate drain pipe 205, through which condensate flows into the water storage container 206 or a floor drain, and then is discharged to the outside. The water storage container 206 can be a drain funnel.

[0082] To further prevent condensation, insulation components can be installed on the outside of the air inlet duct 301, the air outlet duct 303, and the air inlet pipe 201. The insulation components can be made of materials with good thermal insulation properties, such as rock wool, glass wool, rubber and plastic, and polyurethane.

[0083] The buffer room for cold storage ventilation provided by this invention can be applied to variable temperature cold storage 200. Variable temperature cold storage 200 can switch between two internal temperature conditions: 0℃~5℃ and -25℃~-30℃. It can also be adjusted according to season and market demand, making it more convenient to use.

[0084] For example, when the temperature inside the cold storage 200 is between 0℃ and 5℃, and the cold storage 200 is used to store refrigerated items such as fruits, flowers, and vegetables, these foods will produce waste gases such as carbon dioxide through respiration. These gases need to be promptly discharged from the cold storage 200. Ventilation of the cold storage 200 can be achieved through a buffer chamber. This is done by simultaneously opening the air inlet door 1012 and the exhaust door 1022 of the buffer chamber, connecting the air inlet chamber 101 and the exhaust chamber 102 to the cold storage 200, and simultaneously activating the air intake and exhaust systems. At this time, fresh outside air is introduced into the cold storage 200 through the air inlet chamber 101, and the waste gases inside the cold storage 200 are discharged outside through the exhaust chamber 102, thus achieving ventilation of the cold storage 200.

[0085] For example, when the temperature inside the cold storage 200 is -25℃ to -30℃, the cold storage 200 is used to store frozen items such as meat and seafood. At this time, the cold storage 200 does not need ventilation. The air inlet door 1012 and the exhaust door 1022 are closed at the same time, and the air intake and exhaust equipment are also turned off. The cold storage 200 is in a sealed storage state.

[0086] This invention, through the installation of buffer chambers in the walls of the cold storage 200, prevents the formation of a "cold bridge effect" in the ventilation ducts as they pass through the inner walls of the cold storage 200 under two internal temperature conditions: 0℃~5℃ and -25℃~-30℃. This effectively avoids condensation and icing at the ventilation ducts, preventing increased energy consumption in the refrigeration system and thus affecting its normal operation. Simultaneously, when the cold storage 200 is ventilated under storage conditions of 0℃~5℃, cold air leakage is effectively prevented, while also preventing hot air from entering the cold storage 200.

[0087] It should be noted that the technical solutions in the various embodiments of the present invention can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of the present invention.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A buffer room for ventilation in cold storage, characterized in that, include: The compartment body is installed in the wall of the cold storage, and the internal structure of the compartment body includes an air intake compartment and an exhaust compartment; One side of the air intake chamber is connected to the cold storage, and the other side of the air intake chamber is connected to the air intake equipment to send outside air into the cold storage through the air intake chamber; One side of the exhaust chamber is connected to the cold storage, and the other side of the exhaust chamber is connected to the exhaust equipment to exhaust the air inside the cold storage through the exhaust chamber. The air intake chamber is equipped with an air intake interface and an air intake door. The air intake chamber is connected to the air intake equipment through the air intake interface and is connected to the cold storage through the air intake door. The side wall of the exhaust chamber is equipped with an exhaust interface and an exhaust door. The exhaust chamber is connected to the exhaust ventilation equipment through the exhaust interface and is connected to the cold storage through the exhaust door. The intake chamber and the exhaust chamber are arranged side by side along the width direction of the chamber body; or, the intake chamber and the exhaust chamber are stacked along the height direction of the chamber body. A first insulation pipe and a second insulation pipe are installed through the wall of the cold storage. The first end of the first insulation pipe is connected to the air inlet pipe installed in the cold storage, and the second end of the first insulation pipe is connected to the air inlet valve. The first end of the second insulation pipe is connected to the air outlet of the cold storage, and the second end of the second insulation pipe is connected to the exhaust valve. The air intake duct has a sloped section at one end near the air intake valve, and the sloped section slopes downward from the air intake duct toward the air intake valve; a water collection container is provided at the lowest point of the sloped section, and a drain pipe is connected to the water collection container, with the end of the drain pipe away from the water collection container connected to a water storage container.

2. The buffer room for cold storage ventilation according to claim 1, characterized in that, The air intake interface is a flange interface, and the air intake interface is arranged opposite to the air intake valve.

3. The buffer room for cold storage ventilation according to claim 1, characterized in that, The exhaust port is a flange port, and the exhaust port is positioned opposite to the exhaust valve.

4. The buffer room for cold storage ventilation according to claim 1, characterized in that, The side wall of the air intake chamber is provided with an air intake chamber inspection door, and the side wall of the exhaust chamber is provided with an exhaust chamber inspection door. When the intake chamber and the exhaust chamber are stacked along the height direction of the chamber body, the chamber body is provided with ladders corresponding to the positions of the intake chamber access door and / or the exhaust chamber access door.

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