An anti-icing and frost regulating system

Abstract

The present invention discloses an anti-icing and frost regulating system, comprising an external regulating system, a cold storage and an internal regulating system, wherein the external regulating system is arranged outside the cold storage, and the internal regulating system is arranged inside the cold storage, wherein the external regulating system comprises a controller, an air compressor, an air storage tank, a refrigerated air dryer, a first control valve, a differential pressure sensor and the cold storage, and the internal regulating system comprises an air storage device, a second control valve and a first gas pressure sensor. The technical scheme uses the internal and external regulating systems to store the compressed air compressed by the air compressor in the air storage tank first, and the air storage tank has a natural cooling process, and then the air storage tank is connected to the refrigerated air dryer for drying and refrigeration, thereby greatly reducing energy consumption and improving economy, and the stored gas in the air storage device in the internal regulating system is always balanced and tends to be consistent with the internal working temperature of the cold storage, so that the low-temperature dry air released by the air storage device will not or minimally affect the temperature of the cold storage.

Description

Technical Field

[0001] The invention relates to the field of refrigeration technology, in particular to an anti-icing and frost regulating system. Background Art

[0002] In the field of medical device industry, relevant policies and laws require that blood samples should be processed as soon as possible after collection and stored at a specified temperature of 2-8°C. At present, if relevant testing experiments cannot be carried out immediately after blood samples are collected, the common practice is to place the blood samples in a refrigerator (or freezer) and store them at a temperature of 2-8°C. When the samples need to be tested, they are manually taken out of the refrigerator (or freezer) for testing. If the blood sample assembly line operation is required, ordinary refrigerators (or freezers) cannot realize automatic storage and retrieval, which obviously cannot meet the requirements.

[0003] With the development of science and technology, automated cold storage is gradually being introduced to the market. Automated cold storage faces two important problems: First, the temperature fluctuations in the cold storage cause the stored items to undergo a solid freezing and thawing process, especially the large fluctuations in the temperature inside the cold storage caused by opening and closing the cold storage door during the storage and retrieval of items. The quality of the stored items in the cold storage is easily affected; Second, in the area where the low-temperature environment inside the cold storage is combined with the relatively high-temperature environment outside, heat exchange is likely to occur, causing frost or mist condensation, thereby affecting the continuous and effective operation of the automated device. For example, the automated device at the insulated door of the automated cold storage is most prone to frost or mist, causing the corresponding automated device to fail. In the prior art, such as in patents CN206019134U and CN106152679A, the temperature fluctuation range of the automated cold storage is controlled by designing a buffer chamber, and an air curtain is used at the cold storage door to block the outside air from entering the cold storage. However, the design of the air curtain will allow some air to bring in water vapor when entering the cold storage, and the water vapor will freeze when it encounters cold. Therefore, at present, there is still a lot of room for technical improvement in the problem of frost or fog condensation at the automated cold storage door when opening and closing the cold storage door during the process of storing and retrieving items. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present invention provides an anti-icing and frost regulating system.

[0005] The present invention is achieved through the following technical solutions:

[0006] An anti-icing and frost regulating system comprises an external regulating system, a cold storage and an internal regulating system, wherein the external regulating system is arranged outside the cold storage, and the internal regulating system is arranged inside the cold storage, wherein:

[0007] The external adjustment system includes a controller, an air compressor, an air storage tank, a refrigerated air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected to the air compressor, the air compressor is connected to the air storage tank, the air storage tank is connected to the refrigerated air dryer, the cold storage is connected to the differential pressure sensor, the differential pressure sensor is connected to the controller, the controller is connected to the first control valve, and the first control valve is connected to the refrigerated air dryer;

[0008] The internal regulating system comprises an air storage device, a second control valve and a first pressure sensor, wherein the first control valve is connected to the air storage device, the air storage device is connected to the second control valve, the second control valve is connected to the controller, the air storage device is connected to the first pressure sensor, and the first pressure sensor is connected to the controller;

[0009] The air storage tank is used to store compressed air compressed by the air compressor;

[0010] The refrigerated air dryer is used to cool and dry the compressed air in the air storage tank to ensure that the compressed air entering the cold storage is dry to avoid bringing water vapor into the cold storage;

[0011] Usually, the temperature of air compressed by an air compressor is around 50°C, and the outside temperature is usually around 30°C. In the above technical solution, the compressed air compressed by the air compressor is first stored in an air tank. The air tank has a natural cooling process, and then the air tank is connected to a refrigerated air dryer for drying and refrigeration, which greatly reduces energy consumption and improves economy.

[0012] The differential pressure sensor is used to detect the internal pressure of the cold storage and the external pressure of the cold storage;

[0013] The gas storage device is used to store low-temperature dry compressed air that has been cooled and dried by a refrigerated air dryer. The gas storage device in this technical solution is arranged inside the cold storage, and the gas in the gas storage device is always balanced and consistent with the working temperature inside the cold storage, so that the low-temperature dry air released by the gas storage device will not or minimally affect the temperature of the cold storage, will not affect the normal operation of the cold storage, and can also stably store the low-temperature dry air in the gas storage device.

[0014] The controller is used to calculate the pressure difference according to the current internal pressure and external pressure of the cold storage; when the pressure difference reaches a first set value, the controller generates a first instruction, and sends the first instruction to the second control valve to open the second control valve, at which time the low-temperature dry air stored in the air storage device is replenished into the cold storage; when the pressure difference is not less than the first balance value, the controller generates a second instruction, and sends the second instruction to the second control valve to close the second control valve;

[0015] The second control valve is used to receive the first instruction and the second instruction sent by the controller; according to the first instruction and the second instruction, the second control valve is selectively opened so that the low-temperature dry air in the air storage device can be transmitted to the inside of the cold storage, so that the pressure inside the cold storage is greater than the pressure outside the cold storage or the pressure inside and outside the cold storage is balanced, thereby destroying the conditions for exchanging heat inside and outside the cold storage.

[0016] The first pressure sensor is used to monitor the pressure of the gas storage device and feed back to the controller, and the controller receives the current pressure value of the gas storage device;

[0017] When the current pressure value of the air storage device reaches the second set value, the controller generates a third instruction and sends the third instruction to the first control valve to open the first control valve. At this time, the low-temperature dry air passing through the refrigerated air dryer is supplemented into the air storage device; when the current pressure value of the air storage device reaches the third set value, the controller generates a fourth instruction and sends the fourth instruction to the first control valve to close the first control valve.

[0018] The first control valve is used to receive the third instruction and the fourth instruction sent by the controller; according to the third instruction and the fourth instruction, the first control valve is selectively opened so that the low-temperature dry air passing through the refrigerated air dryer is supplemented into the air storage device to ensure that the low-temperature dry air in the air storage device is always sufficient, and to ensure that when cold air needs to be transported to the inside of the cold storage, the low-temperature dry air in the air storage device can fully supply the cold air transportation demand.

[0019] The above technical solution monitors the pressure in the air storage device in real time through the first pressure sensor to ensure that the compressed air in the air storage device is always sufficient, and to ensure that when cold air needs to be transported to the cold storage, the compressed air in the air storage device can fully supply the cold air transportation needs.

[0020] Furthermore, the gas storage device is a gas storage pipeline, and the arrangement of the gas storage pipeline inside the cold storage can be a straight pipe type, a coil type, a ring pipe type, a composite type, a spiral type, etc.

[0021] Furthermore, the gas storage pipeline is provided with at least one gas outlet and a second control valve matching the number of the gas outlets; the controller controls the opening and closing of the second control valve, thereby controlling the opening and closing of the gas outlets of the gas storage pipeline.

[0022] It should be noted that the straight pipe type in the arrangement of the gas storage pipeline in the above technical solution refers to the gas storage pipeline being arranged in the cold storage in a straight pipe structure, and the installation of the pipe structure is simple; the coil type refers to the gas storage pipeline being arranged in the cold storage in a disc-shaped, serpentine, "Z-shaped" or other pipe structure, and the pipe structure can evenly cover the cold storage space, and can save the space occupied by the pipe while increasing the volume of gas stored in the pipe. In addition, as needed, air outlets can be opened at corresponding positions such as the periphery and center of the disc-shaped pipe, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the inside of the cold storage through the periphery and center of the air outlets at the same time, so that the gas inside the cold storage can quickly reach a predetermined state, and the predetermined state means that the pressure inside the cold storage is greater than the pressure outside the cold storage or the cold storage pressure is greater than the pressure outside the cold storage pressure. The pressure inside and outside the cold storage is kept in a balanced state; the annular pipe type refers to the gas storage pipeline being arranged in the cold storage in the form of an annular or quasi-annular pipeline structure. According to needs, air outlets can be opened at corresponding positions around the annular pipeline, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the inside of the cold storage through the air outlets around it at the same time, so that the gas inside the cold storage can quickly reach a predetermined state, reducing the time required for the gas to diffuse and mix inside the cold storage. Compared with the coil type structure, this pipeline structure is simple to install and can also achieve more efficient gas release, diffusion and mixing; the composite type refers to the pipeline structure of the gas storage pipeline showing both annular and disc-shaped characteristics; the spiral type refers to the pipeline structure of the gas storage pipeline being set in a spiral type, further increasing the volume of gas stored in the pipeline and the range of positions where the pipeline outlet can be set.

[0023] Furthermore, the internal regulation system further comprises a heating device, the gas storage device is connected to the heating device, and the heating device is connected to the controller;

[0024] The controller is used to store the start time and the set time;

[0025] The starting time is set to T0, the set time is set to T, and the current time is set to T1. When T1=T0+NT, where N is a natural number greater than 0, the controller controls the heating device to work;

[0026] In this technical solution, the heating device is used to heat the gas storage device, and the frost that may be generated on the gas storage device is heated to prevent the gas storage device from frosting. The main purpose is to solve the following situations that may cause frost: the controller calculates the pressure difference according to the current internal pressure and external pressure of the cold storage. When the pressure difference reaches the first set value, the controller generates a first instruction and sends a first instruction to the second control valve to open the second control valve. At this time, the low-temperature dry air stored in the gas storage device is supplemented to the inside of the cold storage, and the gas storage device releases the supplementary low-temperature dry compressed air to the inside of the cold storage so that the compressed air reaches the inside of the cold storage. It takes a certain amount of time for the pressure inside the cold storage to be greater than the pressure outside the cold storage or for the pressure inside and outside the cold storage to maintain a balance. Before the above state is reached, the pressure inside the cold storage is still lower than the pressure outside the cold storage. Therefore, before the above state is reached, there is still a problem of hot air from outside the cold storage entering the cold storage and causing ice or frost inside the cold storage. Therefore, in this technical solution, the controller "intermittently" controls the heating device to heat the gas storage device (the intermittent means that when the condition of T1=T0+NT is reached, the controller controls the heating device to work) to further prevent the gas storage device from frosting.

[0027] Furthermore, the gas storage device is also connected to a drainage device for discharging water generated when the gas storage pipeline is heated out of the cold storage. The above technical solution, through the operation of the heating device, intermittently heats the gas storage device, heats the frost or ice on the gas storage pipeline, and the water generated after heating is discharged to the outside of the cold storage through the drainage device, thereby ensuring the normal operation of the gas storage device.

[0028] Furthermore, the drainage device is connected to a heating device. In this technical solution, the heating device heats the gas storage device and the drainage device at the same time, and frost that may be generated on the gas storage device and the drainage device is heated to prevent frost on the gas storage device and the drainage device.

[0029] Furthermore, at least one oil mist separator is connected between the air compressor and the air storage tank, which is used to remove and purify the oil mist of the compressed air compressed by the air compressor before it enters the air storage tank for storage. After the oil mist is collected, what is discharged is relatively clean compressed air, thereby purifying the compressed air.

[0030] Furthermore, at least one filtering device is connected between the first control valve and the refrigerated air dryer. The compressed air in the air storage tank is filtered through the filtering device to remove impurities in the compressed air to ensure that the compressed air entering the cold storage is clean. The filtering device can be a plurality of groups, which filter particles of different sizes respectively to obtain the required clean gas.

[0031] Furthermore, the external adjustment system further includes a second pressure sensor, the controller is connected to the second pressure sensor, and the second pressure sensor is connected to the gas storage tank;

[0032] The second pressure sensor is used to monitor the pressure of the gas storage tank and feed back to the controller, and the controller receives the current pressure value of the gas storage tank;

[0033] When the current pressure value of the air storage tank reaches the fourth set value, the controller generates a seventh instruction and sends the seventh instruction to the air compressor to turn on the air compressor to replenish the compressed air to the air storage tank, that is, the air compressor delivers compressed air to the air storage tank to replenish the compressed air in the air storage tank;

[0034] When the current pressure value of the air storage tank reaches the fifth set value, the controller generates an eighth instruction and sends the eighth instruction to the air compressor to turn off the air compressor. The above technical solution monitors the pressure in the air storage tank in real time through the second pressure sensor to ensure that the compressed air in the air storage tank is always sufficient, and ensures that when cold air needs to be transported to the cold storage, the compressed air in the air storage tank can fully supply the cold air transportation demand.

[0035] Further, the cold storage includes a storage body, and a hatch and an inspection door are provided on the storage body. The hatch is used for refrigerated items to enter and exit the storage, and the inspection door is used to enter the cold storage by opening the inspection door when manual entry into the cold storage for maintenance is required. The hatch is connected to a first sensing device, and the inspection door is connected to a second sensing device. The first sensing device and the second sensing device are connected to a controller;

[0036] The first sensing device is used to sense the opening and closing of the door, and feed back the opening and closing signals of the door to the controller;

[0037] The second sensing device is used to sense the opening and closing of the inspection door, and feed back the opening and closing signals of the inspection door to the controller;

[0038] The controller is used to receive signals fed back by the first sensing device and the second sensing device, and the controller selectively controls the opening and closing of the second control valve according to the received signals.

[0039] When the controller receives a signal from the first sensing device or the second sensing device that the hatch or the inspection door is open, the controller generates a ninth instruction and sends the ninth instruction to the second control valve to open the second control valve. At this time, the low-temperature dry air stored in the air storage device is added to the interior of the cold storage. When the controller receives a signal from the first sensing device or the second sensing device that the hatch or the inspection door is closed, and the controller calculates that the pressure difference is not less than the first balance value according to the current internal pressure and external pressure of the cold storage, the controller generates a tenth instruction and sends the tenth instruction to the second control valve to close the second control valve. The first sensing device and the second sensing device are used to sense the opening and closing states of the hatch and the inspection door respectively. When the first sensing device and the second sensing device sense that the hatch or the inspection door is in the open state, the signal of the opening state of the hatch or the inspection door is fed back to the controller. The controller controls the second control valve to open and add the low-temperature dry air stored in the air storage device to the interior of the cold storage, so that the pressure inside the cold storage is greater than the pressure outside the cold storage or the pressure inside and outside the cold storage is balanced.

[0040] In combination with the structural features of the present invention, compared with the prior art, the present invention provides an anti-frost adjustment system, including an external adjustment system, a cold storage and an internal adjustment system, wherein the external adjustment system is arranged outside the cold storage, and the internal adjustment system is arranged inside the cold storage, and the external adjustment system includes a controller, an air compressor, an air storage tank, a refrigerated air dryer, a first control valve, a differential pressure sensor and a cold storage, wherein the controller is connected to the air compressor, the air compressor is connected to the air storage tank, the air storage tank is connected to the refrigerated air dryer, the cold storage is connected to the differential pressure sensor, the differential pressure sensor is connected to the controller, the controller is connected to the first control valve, the first control valve is connected to the refrigerated air dryer, and the first control valve is connected to the cold storage; the internal adjustment system includes an air storage device, a second control valve and a first pressure sensor , the first control valve is connected to the air storage device, the air storage device is connected to the second control valve, the second control valve is connected to the controller, the air storage device is connected to the first pressure sensor, and the first pressure sensor is connected to the controller; in this technical solution, the compressed air compressed by the air compressor is first stored in the air tank by designing the internal and external adjustment systems, and the air tank has a natural cooling process, and then the air tank is connected to the refrigerated air dryer for drying and refrigeration, which greatly reduces energy consumption and improves economy. The stored gas in the air storage device in the internal adjustment system is always balanced and consistent with the internal working temperature of the cold storage, so that the low-temperature dry air released by the air storage device will not or minimally affect the temperature of the cold storage, will not affect the normal operation of the cold storage, and can also make the low-temperature dry air in the air storage device stably stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 A schematic diagram of an anti-icing and frost adjustment system provided in Embodiment 1 of the present invention.

[0043] Figure 2 and Figure 3 A schematic diagram of the arrangement of the coil-type gas storage pipeline provided in the second embodiment of the present invention.

[0044] Figure 4 A schematic diagram of the arrangement of the annular gas storage pipeline provided in the second embodiment of the present invention.

[0045] Figure 5 This is a schematic diagram of the layout of the composite gas storage pipeline provided in the second embodiment of the present invention.

[0046] Figure 6 A schematic diagram of an anti-icing and frost adjustment system provided in Embodiment 3 of the present invention.

[0047] Figure 7 A schematic diagram of an anti-icing and frost adjustment system provided in Embodiment 4 of the present invention.

[0048] Figure 8 A schematic diagram of an anti-icing and frost adjustment system provided in Embodiment 5 of the present invention.

[0049] Fig. 9 A schematic diagram of an anti-icing and frost adjustment system provided in Example 6 of the present invention.

[0050] Fig.10 A schematic diagram of an anti-icing and frost adjustment system provided in Embodiment 7 of the present invention. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] Embodiment 1

[0054] The present invention is achieved through the following technical solutions:

[0055] like Figure 1 As shown, an anti-icing and frost regulating system includes an external regulating system, a cold storage and an internal regulating system, wherein the external regulating system is arranged outside the cold storage, and the internal regulating system is arranged inside the cold storage, wherein:

[0056] The external adjustment system includes a controller, an air compressor, an air storage tank, a refrigerated air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected to the air compressor, the air compressor is connected to the air storage tank, the air storage tank is connected to the refrigerated air dryer, the cold storage is connected to the differential pressure sensor, the differential pressure sensor is connected to the controller, the controller is connected to the first control valve, and the first control valve is connected to the refrigerated air dryer;

[0057] The internal regulating system comprises an air storage device, a second control valve and a first pressure sensor, wherein the first control valve is connected to the air storage device, the air storage device is connected to the second control valve, the second control valve is connected to the controller, the air storage device is connected to the first pressure sensor, and the first pressure sensor is connected to the controller;

[0058] The air storage tank is used to store compressed air compressed by the air compressor;

[0059] The refrigerated air dryer is used to cool and dry the compressed air in the air storage tank to ensure that the compressed air entering the cold storage is dry to avoid bringing water vapor into the cold storage;

[0060] The differential pressure sensor is used to detect the internal pressure of the cold storage and the external pressure of the cold storage;

[0061] The gas storage device is used to store low-temperature dry compressed air that has been cooled and dried by a refrigerated air dryer. The gas storage device in this technical solution is arranged inside the cold storage, and the gas in the gas storage device is always balanced and consistent with the working temperature inside the cold storage, so that the low-temperature dry air released by the gas storage device will not or minimally affect the temperature of the cold storage, will not affect the normal operation of the cold storage, and can also stably store the low-temperature dry air in the gas storage device.

[0062] The controller is used to calculate the pressure difference according to the current internal pressure and external pressure of the cold storage; when the pressure difference reaches a first set value, the controller generates a first instruction, and sends the first instruction to the second control valve to open the second control valve, at which time the low-temperature dry air stored in the air storage device is replenished into the cold storage; when the pressure difference is not less than the first balance value, the controller generates a second instruction, and sends the second instruction to the second control valve to close the second control valve;

[0063] The controller is used to calculate the pressure difference according to the current internal pressure and external pressure of the cold storage, set the current internal pressure of the cold storage to P1, set the current external pressure of the cold storage to P2, and set the pressure difference to ΔP, wherein ΔP=(P1-P2); when the pressure difference ΔP reaches a first set value, it should be noted that the first set value is a preset value, when the pressure difference between the inside and outside of the cold storage reaches the preset first set value, the controller generates a first instruction, and sends a first instruction to the second control valve to open the second control valve, at which time the low-temperature dry air stored in the air storage device is supplemented to the inside of the cold storage; when the pressure difference ΔP is not less than the first set value, the controller generates a first instruction, and sends a first instruction to the second control valve to open the second control valve, at which time the low-temperature dry air stored in the air storage device is added ... When the first balance value is reached, the controller generates a second instruction and sends a second instruction to the second control valve to close the second control valve. It should be noted that the first balance value is a preset value, which can be 0 or greater than 0. When the first balance value is 0, the pressure difference ΔP is not less than the first balance value. In this condition, the pressure difference ΔP inside and outside the cold storage is 0 to maintain balance or the internal pressure of the cold storage is greater than the external pressure. When the first balance value is greater than 0, the pressure difference ΔP is not less than the first balance value. In this condition, the pressure difference ΔP inside and outside the cold storage is greater than 0, that is, the internal pressure of the cold storage remains greater than the external pressure.

[0064] The second control valve is used to receive the first instruction and the second instruction sent by the controller; according to the first instruction and the second instruction, the second control valve selectively opens so that the low-temperature dry air in the gas storage device can be transmitted to the interior of the cold storage, so that the pressure inside the cold storage is greater than the pressure outside the cold storage or the pressure inside and outside the cold storage is balanced, thereby destroying the conditions for the cold and heat exchange between the inside and outside of the cold storage. It should be noted that the second control valve selectively opens, which means that when the second control valve receives the first instruction sent by the controller, the second control valve opens, and the low-temperature dry air stored in the gas storage device is supplemented to the interior of the cold storage, and when the second control valve receives the second instruction sent by the controller, the second control valve closes.

[0065] The first pressure sensor is used to monitor the pressure of the gas storage device and feed back to the controller, and the controller receives the current pressure value of the gas storage device;

[0066] When the current pressure value of the air storage device reaches the second set value, the controller generates a third instruction and sends the third instruction to the first control valve to open the first control valve. At this time, the low-temperature dry air passing through the refrigerated air dryer is supplemented into the air storage device; when the current pressure value of the air storage device reaches the third set value, the controller generates a fourth instruction and sends the fourth instruction to the first control valve to close the first control valve.

[0067] The first control valve is used to receive the third instruction and the fourth instruction sent by the controller; according to the third instruction and the fourth instruction, the first control valve is selectively opened so that the low-temperature dry air passing through the refrigerated air dryer is supplemented into the air storage device to ensure that the low-temperature dry air in the air storage device is always sufficient, and to ensure that when cold air needs to be transported to the inside of the cold storage, the low-temperature dry air in the air storage device can fully supply the cold air transportation demand.

[0068] It should be noted that the second set value is a pre-set value. When the current pressure value of the air storage device reaches the second set value, it indicates that the low-temperature dry air in the air storage device is insufficient and needs to be supplemented. Then the controller generates a third instruction and sends the third instruction to the first control valve to open the first control valve. At this time, the low-temperature dry air passing through the refrigerated air dryer is supplemented into the air storage device to supplement the low-temperature dry air to the air storage device.

[0069] When the current pressure value of the gas storage tank reaches a third set value, the controller generates a fourth instruction and sends the fourth instruction to the first control valve to close the first control valve.

[0070] It should be noted that the third set value is a pre-set value. When the current pressure value of the air storage device reaches the third set value, it indicates that the low-temperature dry air in the air storage device is sufficient. The controller generates a fourth instruction and sends the fourth instruction to the first control valve to close the first control valve and stop replenishing the low-temperature dry air to the air storage device.

[0071] The above technical solution monitors the pressure in the gas tank in real time through the first pressure sensor. When it is detected that the pressure in the gas tank is insufficient, timely feedback is given to the controller, and the controller sends a command to the air compressor to turn on the air compressor to replenish compressed air to the gas tank, so as to ensure that the compressed air in the gas tank can always be kept sufficient, and ensure that when cold air needs to be transported to the cold storage, the compressed air in the gas tank can fully supply the cold air transportation demand.

[0072] Usually, the temperature of air compressed by an air compressor is around 50°C, and the outside temperature is usually around 30°C. In the above technical solution, the compressed air compressed by the air compressor is first stored in an air tank, and the air tank undergoes a natural cooling process. Then, the air tank is connected to a refrigerated air dryer for drying and refrigeration. The air tank is first cooled naturally, and then dried and refrigerated, which greatly reduces energy consumption and improves economy.

[0073] Embodiment 2

[0074] like Figures 2 to 4 As shown, the gas storage device is a gas storage pipeline, and the arrangement of the gas storage pipeline inside the cold storage can be a straight pipe type, a coil type, a ring pipe type, a compound type, a spiral type, etc.

[0075] The gas storage pipeline is provided with at least one gas outlet and a second control valve matching the number of the gas outlets; the controller controls the opening and closing of the second control valve, thereby controlling the opening and closing of the gas outlets of the gas storage pipeline.

[0076] It should be noted that the straight pipe type in the arrangement of the gas storage pipeline in the above technical solution means that the gas storage pipeline is arranged in the cold storage in a straight pipe structure. The pipe structure is simple to install and is not shown in the structure diagram; the coil type, such as Figure 2 and Figure 3 As shown, it means that the gas storage pipeline is arranged in the cold storage in a disc-shaped, serpentine, "Z-shaped" and other pipeline structures. The pipeline structure can evenly cover the cold storage space, increase the volume of gas stored in the pipeline, and save the space occupied by the pipeline. In addition, according to needs, air outlets can be opened at corresponding positions such as the periphery and center of the disc-shaped pipeline, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the inside of the cold storage through the periphery and center of the air outlets at the same time, so that the gas inside the cold storage can quickly reach a predetermined state, which means that the pressure inside the cold storage is greater than the pressure outside the cold storage or the pressure inside and outside the cold storage is balanced; annular pipe type, such as Figure 4 As shown, the gas storage pipeline is arranged in the cold storage in a ring or quasi-ring pipeline structure. According to the needs, air outlets can be opened at corresponding positions around the ring pipeline, so that the low-temperature dry air in the gas storage pipeline can release the low-temperature dry gas to the inside of the cold storage through the air outlets around, so that the gas inside the cold storage can quickly reach a predetermined state, reducing the time required for the gas to diffuse and mix inside the cold storage. Compared with the coil structure, this pipeline structure is simple to install and can also achieve a higher efficiency of gas release, diffusion and mixing; composite type, such as Figure 5 The structure shown in the figure refers to the pipeline structure of the gas storage pipeline showing both annular and disc-shaped features; the spiral type refers to the pipeline structure of the gas storage pipeline being arranged in a spiral type, further increasing the gas storage volume of the pipeline and the position range of the pipeline outlet, which is not shown in the structure diagram. (It should be noted that the attached Figures 2 to 4 This is a schematic diagram of the layout of the gas storage pipeline, which does not represent the actual installation method. The rectangular frame in the figure represents the cold storage, and the serpentine, "Z"-like, rounded rectangular, and composite lines inside it represent the gas storage pipeline.)

[0077] Embodiment 3

[0078] like Figure 6 As shown, the internal regulation system further includes a heating device, the gas storage device is connected to the heating device, and the heating device is connected to the controller;

[0079] The controller is used to store the start time and the set time;

[0080] The start time can be understood as the time when the cold storage starts working. The start time can be a numerical value or a clock value consistent with the received current time. For example, the numerical value can be an integer or non-integer value such as 0, 1, 2, 0.1, 0.2, 1.1, 1.2, etc., and the clock value can be a clock value such as 08:00, 08:30, 09:02, etc.;

[0081] The start time is set to T0, the set time is T, and the current time is T1. When T1=T0+NT, where N is a natural number greater than 0, the controller controls the heating device to work;

[0082] In this technical solution, the heating device is used to heat the gas storage device, and the frost that may be generated on the gas storage device is heated to prevent the gas storage device from frosting. The main purpose is to solve the following situations that may cause frost: the controller calculates the pressure difference according to the current internal pressure and external pressure of the cold storage. When the pressure difference reaches the first set value, the controller generates a first instruction and sends a first instruction to the second control valve to open the second control valve. At this time, the low-temperature dry air stored in the gas storage device is supplemented to the inside of the cold storage, and the gas storage device releases the supplementary low-temperature dry compressed air to the inside of the cold storage so that the compressed air reaches the inside of the cold storage. It takes a certain amount of time for the pressure inside the cold storage to be greater than the pressure outside the cold storage or for the pressure inside and outside the cold storage to maintain a balance. Before the above state is reached, the pressure inside the cold storage is still lower than the pressure outside the cold storage. Therefore, before the above state is reached, there is still a problem of hot air from outside the cold storage entering the cold storage and causing ice or frost inside the cold storage. Therefore, in this technical solution, the controller "intermittently" controls the heating device to heat the gas storage device (the intermittent means that when the condition of T1=T0+NT is reached, the controller controls the heating device to work) to further prevent the gas storage device from frosting.

[0083] Embodiment 4

[0084] like Figure 7As shown, the gas storage device is also connected to a drainage device for discharging the water generated when the gas storage pipeline is heated out of the cold storage. This technical solution, through the operation of the heating device, intermittently heats the gas storage device, heats the frost or ice on the gas storage pipeline, and the water generated after heating is discharged to the outside of the cold storage through the drainage device, thereby ensuring the normal operation of the gas storage device.

[0085] Embodiment 5

[0086] like Figure 8 As shown, the drainage device is connected to the heating device. In this technical solution, the heating device is operated to heat the gas storage device and the drainage device at the same time, and the frost that may be generated on the gas storage device and the drainage device is heated to prevent the gas storage device and the drainage device from frosting.

[0087] Embodiment 6

[0088] like Fig. 9 As shown, at least one oil mist separator is connected between the air compressor and the air storage tank, which is used to remove and purify the oil mist of the compressed air compressed by the air compressor before it enters the air storage tank for storage. After the oil mist is collected, what is discharged is relatively clean compressed air, thereby purifying the compressed air.

[0089] At least one filter device is also connected between the first control valve and the refrigerated air dryer. The compressed air in the gas tank is filtered through the filter device to remove impurities in the compressed air to ensure that the compressed air entering the cold storage is clean. The filter device can be multiple groups, which filter particles of different sizes respectively to obtain the required clean gas. When the controller sends a first instruction to the first control valve and opens the first control valve, the compressed air in the gas tank is cooled and dried by the refrigerated air dryer, and then filtered by the filter device to remove impurities and then transported to the cold storage.

[0090] Embodiment 7

[0091] like Fig.10 As shown, the external regulation system further includes a second pressure sensor, the controller is connected to the second pressure sensor, and the second pressure sensor is connected to the gas storage tank;

[0092] The second pressure sensor is used to monitor the pressure of the gas storage tank and feed back to the controller, and the controller receives the current pressure value of the gas storage tank;

[0093] When the current pressure value of the air storage tank reaches the fourth set value, the controller generates a seventh instruction and sends the seventh instruction to the air compressor to turn on the air compressor to replenish the compressed air to the air storage tank, that is, the air compressor delivers compressed air to the air storage tank to replenish the compressed air in the air storage tank;

[0094] When the current pressure value of the air storage tank reaches the fifth set value, the controller generates an eighth instruction and sends the eighth instruction to the air compressor to turn off the air compressor. The above technical solution monitors the pressure in the air storage tank in real time through the second pressure sensor to ensure that the compressed air in the air storage tank is always sufficient, and ensures that when cold air needs to be transported to the cold storage, the compressed air in the air storage tank can fully supply the cold air transportation demand.

[0095] Embodiment 8

[0096] This embodiment is not shown in the figure. The cold storage comprises a storage body, on which a hatch and an inspection door are arranged, the hatch is used for the entry and exit of refrigerated goods, and the inspection door is used for entering the cold storage by opening the inspection door when manual entry into the cold storage is required for maintenance, the hatch is connected to a first sensing device, the inspection door is connected to a second sensing device, and the first sensing device and the second sensing device are connected to a controller;

[0097] The first sensing device is used to sense the opening and closing of the door, and feed back the opening and closing signals of the door to the controller;

[0098] The second sensing device is used to sense the opening and closing of the inspection door, and feed back the opening and closing signals of the inspection door to the controller;

[0099] The controller is used to receive signals fed back by the first sensing device and the second sensing device, and the controller selectively controls the opening and closing of the second control valve according to the received signals.

[0100] When the controller receives a signal from the first sensing device or the second sensing device that the hatch or the inspection door is open, the controller generates a ninth instruction and sends the ninth instruction to the second control valve to open the second control valve. At this time, the low-temperature dry air stored in the air storage device is added to the interior of the cold storage. When the controller receives a signal from the first sensing device or the second sensing device that the hatch or the inspection door is closed, and the controller calculates that the pressure difference is not less than the first balance value according to the current internal pressure and external pressure of the cold storage, the controller generates a tenth instruction and sends the tenth instruction to the second control valve to close the second control valve. The first sensing device and the second sensing device are used to sense the opening and closing states of the hatch and the inspection door respectively. When the first sensing device and the second sensing device sense that the hatch or the inspection door is in the open state, the signal of the opening state of the hatch or the inspection door is fed back to the controller. The controller controls the second control valve to open and add the low-temperature dry air stored in the air storage device to the interior of the cold storage, so that the pressure inside the cold storage is greater than the pressure outside the cold storage or the pressure inside and outside the cold storage is balanced.

[0101] Therefore, the technical solution senses the opening and closing states of the hatch and the inspection door respectively through the first sensing device and the second sensing device. When the first sensing device and the second sensing device sense that the hatch or the inspection door is in the open state, the signal of the opening state of the hatch or the inspection door is fed back to the controller, and the second control valve is controlled by the controller to open, and the low-temperature dry air stored in the air storage device is replenished into the cold storage, and the low-temperature dry compressed air is automatically replenished into the cold storage, and the pressure inside the storage is increased to be greater than the external pressure of the cold storage or the internal and external pressures of the cold storage are kept balanced, so as to prevent the heat exchange between the inside and outside of the cold storage due to the opening of the hatch or the inspection door, and prevent the external hot air from entering the cold storage, thereby avoiding ice or frost inside the cold storage, the hatch, the inspection door and other connecting parts inside and outside the storage.

[0102] The applicant declares that the above-described embodiments only express 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-described embodiments, and the above-described embodiments and the specification only describe the principles of the present invention. For those skilled in the art, various changes and improvements can be made without departing from the concept and scope of the present invention, and these changes and improvements all fall within the scope of the present invention to be protected.

[0103] The present invention is not limited to the above-mentioned embodiments, and all embodiments that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims

1. An anti-icing and frost regulating system, characterized in that: It includes an external regulating system, a cold storage and an internal regulating system, wherein the external regulating system is arranged outside the cold storage, and the internal regulating system is arranged inside the cold storage, wherein: The external adjustment system includes a controller, an air compressor, an air storage tank, a refrigerated air dryer, a first control valve and a differential pressure sensor, wherein the controller is connected to the air compressor, the air compressor is connected to the air storage tank, the air storage tank is connected to the refrigerated air dryer, the cold storage is connected to the differential pressure sensor, the differential pressure sensor is connected to the controller, the controller is connected to the first control valve, and the first control valve is connected to the refrigerated air dryer; The internal regulating system comprises an air storage device, a second control valve and a first pressure sensor, wherein the first control valve is connected to the air storage device, the air storage device is connected to the second control valve, the second control valve is connected to the controller, the air storage device is connected to the first pressure sensor, and the first pressure sensor is connected to the controller; The air storage tank is used to store compressed air compressed by the air compressor; The refrigerated air dryer is used to cool and dry the compressed air in the gas storage tank; The differential pressure sensor is used to detect the internal pressure of the cold storage and the external pressure of the cold storage; The air storage device is used to store low-temperature dried compressed air after being cooled and dried by a refrigerated air dryer; The controller is used to calculate the pressure difference according to the current internal pressure and external pressure of the cold storage; when the pressure difference reaches a first set value, the controller generates a first instruction, and sends the first instruction to the second control valve to open the second control valve; when the pressure difference is not less than a first balance value, the controller generates a second instruction, and sends the second instruction to the second control valve to close the second control valve; The second control valve is used to receive the first instruction and the second instruction sent by the controller; according to the first instruction and the second instruction, the second control valve is selectively opened; The first pressure sensor is used to monitor the pressure of the gas storage device and feed back to the controller, and the controller receives the current pressure value of the gas storage device; when the current pressure value of the gas storage device reaches the second set value, the controller generates a third instruction, and sends the third instruction to the first control valve to open the first control valve; when the current pressure value of the gas storage device reaches the third set value, the controller generates a fourth instruction, and sends the fourth instruction to the first control valve to close the first control valve; The first control valve is used to receive a third instruction and a fourth instruction sent by the controller; according to the third instruction and the fourth instruction, the first control valve is selectively opened; The cold storage comprises a storage body, and the storage body is provided with a cabin door and an inspection door; The internal regulation system also includes a heating device, the gas storage device is connected to the heating device, and the heating device is connected to the controller.

2. An anti-icing and frost regulating system according to claim 1, characterized in that: The gas storage device is a gas storage pipeline, and the arrangement of the gas storage pipeline inside the cold storage can be any one of a straight pipe type, a coil type, a ring pipe type, a composite type or a spiral type.

3. An anti-icing and frost regulating system according to claim 2, characterized in that: The gas storage pipeline is provided with at least one gas outlet and a second control valve matching the number of the gas outlets.

4. The anti-icing and frost regulating system according to claim 1, characterized in that: The internal regulation system further comprises a heating device, the gas storage device is connected to the heating device, and the heating device is connected to the controller; The controller is used to store the start time and the set time; Set the start time to T0, set the set time to T, and set the current time to T1; When T1= T0+NT, where N is a natural number greater than 0, the controller controls the heating device to operate.

5. An anti-icing and frost regulating system according to claim 4, characterized in that: The gas storage device is also connected with a drainage device.

6. An anti-icing and frost regulating system according to claim 5, characterized in that: The drainage device is connected to the heating device.

7. The anti-icing and frost regulating system according to claim 4, characterized in that: At least one oil mist separator is also connected between the air compressor and the air storage tank.

8. An anti-icing and frost regulating system according to claim 7, characterized in that: At least one filter device is also connected between the first control valve and the refrigerated air dryer.

9. An anti-icing and frost regulating system according to any one of claims 4, 7 or 8, characterized in that: The external adjustment system further includes a second pressure sensor, the controller is connected to the second pressure sensor, and the second pressure sensor is connected to the gas storage tank; The second pressure sensor is used to monitor the pressure of the air tank and feed back to the controller, and the controller receives the current pressure value of the air tank; when the current pressure value of the air tank reaches a fourth set value, the controller generates a seventh instruction, and sends the seventh instruction to the air compressor to turn on the air compressor; when the current pressure value of the air tank reaches a fifth set value, the controller generates an eighth instruction, and sends the eighth instruction to the air compressor to turn off the air compressor.

10. The anti-icing and frost regulating system according to claim 1, characterized in that: The cold storage comprises a storage body, a hatch and an inspection door are arranged on the storage body, a first sensing device is connected to the hatch, a second sensing device is connected to the inspection door, and the first sensing device and the second sensing device are connected to a controller; The first sensing device is used to sense the opening and closing of the door, and feed back the opening and closing signals of the door to the controller; The second sensing device is used to sense the opening and closing of the inspection door, and feed back the opening and closing signals of the inspection door to the controller; The controller is used to receive signals fed back by the first sensing device and the second sensing device, and the controller selectively controls the opening and closing of the second control valve according to the received signals.

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