Freezing type drying system

Abstract

The embodiment of the utility model provides a freezing type drying system. The system comprises a base, at least one heat exchange module, an air inlet main pipeline, an air outlet main pipeline and at least one refrigeration module. The top of the base is provided with a first area and a second area, and the second area is located on one side of the first area in the first direction. The at least one heat exchange module is arranged in the first area, and the at least one heat exchange module is arranged in the second direction; the air inlet main pipeline and the air outlet main pipeline are arranged above at least one heat exchange module and are respectively connected with the air inlet and the air outlet of each heat exchange module; the at least one refrigeration module is arranged on the base in the second direction, the at least one refrigeration module is connected with the at least one heat exchange module through a refrigerant conveying pipeline, and at least part of the structure of each refrigeration module is arranged in the second area. The freezing type drying system is regular in arrangement and compact in layout, and the size and the occupied area of the freezing type drying system can be reduced.

Description

Technical Field

[0001] The exemplary embodiments of the present application generally relate to the technical field of dryers, and particularly to a refrigerated drying system. Background Art

[0002] A refrigerated drying system is a system that uses a refrigerant to exchange heat with a gas (such as compressed air), cools the gas below the dew point temperature, condenses the water vapor in the gas into liquid water, and separates the liquid water from the gas to achieve the purpose of drying the gas. However, conventional refrigerated drying systems generally have problems such as small processing capacity and large floor area, and there is still room for improvement in terms of processing efficiency and maintenance convenience for refrigerated drying systems with large processing capacities. Summary of the Utility Model

[0003] The purpose of the present application is to provide a refrigerated drying system to solve or at least partially solve the above problems and / or other potential problems existing in traditional refrigerated drying systems.

[0004] The present application provides a refrigerated drying system. The refrigerated drying system includes: a base having a first area and a second area at the top, and the second area is located on one side of the first area in a first direction; at least one heat exchange module disposed in the first area, and at least one heat exchange module is arranged along a second direction perpendicular to the first direction; an intake main pipe and an outlet main pipe disposed above at least one heat exchange module, the intake main pipe and the outlet main pipe are respectively connected to the intake ports and outlet ports of each heat exchange module, and at least one refrigeration module is disposed on the base along the second direction, and at least one refrigeration module is connected to at least one heat exchange module through a refrigerant delivery pipe, and at least part of the structure of each refrigeration module is disposed in the second area.

[0005] In some embodiments, the base further includes a third area located on the other side of the first area in the first direction; a part of the structure of each refrigeration module is located in the second area, and another part of the structure of each refrigeration module is located in the third area.

[0006] In some embodiments, the refrigeration module includes a refrigeration compressor, a condenser, a dryer filter, a throttling device, and a gas-liquid separator, and a refrigerant circulation pipeline is formed by connecting the refrigeration compressor, the hot side channel of the condenser, the dryer filter, the throttling device, the cold side channel of the heat exchange module, and the gas-liquid separator.

[0007] In some embodiments, the dryer filter and the throttling device are disposed in the third area, and the refrigeration compressor, the condenser, and the gas-liquid separator are disposed in the second area.

[0008] In some embodiments, at least one refrigeration module includes a plurality of refrigeration modules that share the same condenser, and the condenser extends in a second direction.

[0009] In some embodiments, the condenser is located near the first region on the second region.

[0010] In some embodiments, at least one heat exchange module and at least one refrigeration module are connected in a one-to-one correspondence.

[0011] In some embodiments, the heat exchange module includes a plurality of heat exchangers arranged in the second direction.

[0012] In some embodiments, an air inlet and an air outlet are provided at the top of each heat exchanger. The air inlet of the heat exchanger is connected to the main air inlet pipe through an air inlet branch pipe, and the air outlet of the heat exchanger is connected to the main air outlet pipe through an air outlet branch pipe.

[0013] In some embodiments, at least one refrigeration module includes a plurality of refrigeration modules connected in parallel, and / or at least one heat exchange module includes a plurality of heat exchange modules connected in parallel.

[0014] In some embodiments, a control module is further included, and the control module is disposed at one end of the second region in the second direction.

[0015] In some embodiments, a box body is further included. The box body covers the base and together with the base encloses an accommodation space. The main air inlet pipe, the main air outlet pipe, at least one heat exchange module, and at least one refrigeration module are located in the accommodation space.

[0016] In the freeze-drying system according to the embodiments of the present application, the base includes at least a first region and a second region. The at least one heat exchange module is disposed in the first region and arranged in the second direction. The main air inlet pipe and the main air outlet pipe are disposed above the at least one heat exchange module. The at least one refrigeration module is arranged in the second direction, and at least a part of the structure of each refrigeration module is disposed in the second region. In this way, the arrangement of the freeze-drying system is regular and the layout is compact, which is beneficial to reducing the size and floor area of the freeze-drying system while increasing the gas processing capacity of the freeze-drying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In combination with the accompanying drawings and with reference to the following detailed description, the above and other features, advantages, and aspects of the embodiments of the present application will become more apparent. In the drawings, the same or similar reference numerals represent the same or similar elements, where:

[0018] Figure 1 FIG. shows a perspective view of a freeze-drying system according to some embodiments of the present application;

[0019] Figure 2 Shows a perspective view of another angle of the freeze-drying system according to some embodiments of the present application;

[0020] Figure 3 Shows a side view of the freeze-drying system according to some embodiments of the present application;

[0021] Figure 4 Shows a top view of the freeze-drying system according to some embodiments of the present application;

[0022] Figure 5 Shows a schematic diagram of the freeze-drying system according to some embodiments of the present application; and

[0023] Figure 6 Shows a partial schematic diagram of the freeze-drying system according to some embodiments of the present application.

[0024] Description of reference numerals:

[0025] 100 - Base; 110 - First region; 120 - Second region; 130 - Third region;

[0026] 200 - Heat exchange module; 210 - Heat exchanger; 211 - Pre-cooler; 212 - Evaporator; 213 - Water separator; 214 - Drain valve; 221 - Inlet branch pipe; 222 - Outlet branch pipe;

[0027] 300 - Refrigeration module; 311 - Refrigeration compressor; 312 - Condenser; 313 - Valve; 314 - Drying filter; 315 - Throttling device; 316 - Gas-liquid separator; 317 - Pressure switch; 318 - Bypass valve; 321 - Monitoring point; 322, 323 - Pressure sensors; 324, 325, 326 - Temperature sensors;

[0028] 410 - Inlet main pipe; 420 - Outlet main pipe; 430 - Control module. Detailed description of the specific embodiments

[0029] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] As used herein, the term "comprising" and variations thereof mean an open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "an exemplary embodiment" and "an embodiment" mean "at least one exemplary embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0031] An embodiment of the present application provides a freeze-drying system. Refer to Figures 1 to 5 As shown, the freeze-drying system of the embodiment of the present application includes a base 100, an intake main pipe 410, an outlet main pipe 420, at least one heat exchange module 200, and at least one refrigeration module 300.

[0032] The top of the base 100 has a first area 110 and a second area 120, and the second area 120 is located on one side of the first area 110 in the first direction. The base 100, as a supporting structure of the freeze-drying system, can be configured in any shape suitable for supporting other devices of the freeze-drying system. The first direction here can be any direction in the horizontal direction. Exemplarily, the base 100 can be formed in a rectangular flat plate structure, the top surface of the base 100 can be rectangular, and the first direction can be the extension direction of a short side of the rectangle. Alternatively or additionally, in order to facilitate the hoisting and transportation of the freeze-drying system, the base 100 can also be provided with a hoisting structure and / or a shipping structure (such as a forklift hole, etc.).

[0033] The at least one heat exchange module 200 is disposed in the first area 110, and the at least one first heat exchange module 200 is arranged in the second direction. Specifically, the at least one heat exchange module 200 can include one heat exchange module 200 or can include multiple heat exchange modules 200. In the case where the at least one heat exchange module 200 includes multiple heat exchange modules 200, the multiple heat exchange modules 200 can be arranged in the second direction in the first area 110. The heat exchange module 200 is configured to be able to use a refrigerant to cool the gas and separate the condensed water to dry the gas. Exemplarily, the heat exchange module 200 can have a cold side channel and a hot side channel. The refrigerant can be conveyed through the cold side channel, and the gas can be conveyed through the hot side channel. The refrigerant and the gas perform heat exchange in the heat exchange module 200, and the condensed water formed by condensation can be discharged through the hot side channel. The second direction here is the direction perpendicular to the first direction in the horizontal direction. Exemplarily, the top surface of the base 100 can be rectangular, and the second direction can be the extension direction of a long side of the rectangle. The multiple heat exchange modules 200 can be arranged in sequence along the extension direction of a long side of the rectangle.

[0034] The intake main pipeline 410 and the outlet main pipeline 420 are arranged above at least one heat exchange module 200. The intake main pipeline 410 and the outlet main pipeline 420 are respectively connected to the intake ports and outlet ports of each heat exchange module 200. The intake main pipeline is used to convey gas to the heat exchange module 200, and the gas can include various gases suitable for freeze-drying, such as compressed air. The outlet main pipeline is used to receive the freeze-dried gas and convey the freeze-dried gas downstream (such as to the gas-using terminal). Alternatively or additionally, in the case of having multiple heat exchange modules 200, the multiple heat exchange modules 200 can be connected in parallel between the intake main pipeline 410 and the outlet main pipeline 420. Alternatively or additionally, the intake main pipeline 410 and the outlet main pipeline 420 can extend along the second direction. In this way, the extending directions of the intake main pipeline 410 and the outlet main pipeline 420 are the same as the arranging direction of the at least one heat exchange module 200, which is beneficial to shortening the pipeline lengths between the intake main pipeline 410 and the outlet main pipeline 420 and the at least one heat exchange module 200.

[0035] The at least one refrigeration module 300 is arranged on the base 100 along the second direction, and the at least one refrigeration module 300 is connected to at least one heat exchange module 200 through a refrigerant conveying pipeline. Alternatively or additionally, the at least one refrigeration module 300 can include one refrigeration module 300 or multiple refrigeration modules 300. In the case of having multiple refrigeration modules 300, the multiple refrigeration modules 300 can be arranged on the base 100 along the second direction. Alternatively or additionally, in the case where the at least one heat exchange module includes multiple heat exchange modules, the multiple heat exchange modules are also connected in parallel.

[0036] At least part of the structure of each refrigeration module 300 is arranged in the second region 120. Specifically, for a single refrigeration module 300, in one example, all the structure of the refrigeration module 300 can be arranged in the second region 120. In another example, a part of the structure of the refrigeration module can be arranged in the second region 120, and another part of the structure of the refrigeration module can be arranged in other regions.

[0037] Alternatively or additionally, the base 100 can further include a third region 130, and the third region 130 can be located on the other side of the first region 110 in the first direction. In this way, in the first direction, the first region 110 is located between the second region 120 and the third region 130. Another part of the structure of the refrigeration module can be arranged in the third region 130. Thereby, the refrigeration module 300 can be assembled and maintained from opposite sides, which is beneficial to improving the maintenance convenience of the freeze-drying system. There can be obvious boundaries or no obvious boundaries between the first region 110, the second region 120, and the third region 130 here.

[0038] For example, the top surface of the base 100 can be rectangular, and a third region 130, a first region 110, and a second region 120 can be demarcated along the extension direction of a short side of the rectangle (e.g., Figure 1 the X-axis direction in Figure 1 ). A plurality of heat exchange modules 200 are arranged in the first region 110, that is, in the middle or near the middle of the top surface of the base 110 in the first direction. The plurality of heat exchange modules 200 can be arranged in sequence along the extension direction of a long side of the rectangle (e.g.,

[0039] the Y-axis direction in

[0040] ). The region occupied by the plurality of heat exchange modules 200 can be determined as the first region 110, and the regions on both sides of the first region 110 can be respectively determined as the third region 130 and the second region 120. The plurality of refrigeration modules 300 can be arranged in sequence along the Y-axis direction. For a single refrigeration module 300, a part of the structure of the refrigeration module 300 can be arranged in the second region 120, and another part of the structure can be arranged in the third region 130. Figure 6As shown, the multiple devices of the refrigeration module 300 include a refrigeration compressor 311, a condenser 312, a dryer filter 314, a throttling device 315, and a gas-liquid separator 316. The refrigeration compressor 311, the hot-side channel of the condenser 312, the dryer filter 314, the throttling device 315, the cold-side channel of the heat exchange module 200, and the gas-liquid separator 316 are connected to form a refrigerant circulation pipeline. Specifically, the refrigeration compressor 311, the hot-side channel of the condenser 312, the dryer filter 314, the throttling device 315, the cold-side channel of the heat exchange module 200, and the gas-liquid separator 316 can be connected in sequence along the flow direction of the refrigerant to form a refrigerant circulation pipeline. Here, the refrigeration compressor 311 is used to compress the refrigerant into a high-temperature and high-pressure gaseous refrigerant, and the condenser 312 is used to condense the high-temperature and high-pressure gaseous refrigerant into a medium-temperature and high-pressure liquid refrigerant. The dryer filter 314 can filter out the moisture and impurities in the refrigerant, which is beneficial to maintaining the quality of the refrigerant. After the medium-temperature and high-pressure liquid refrigerant flows through the throttling device 315, it is converted into a low-temperature and low-pressure two-phase refrigerant. Then, it exchanges heat with the gas in the heat exchange module 200 to achieve the purpose of freeze-drying the gas. After the refrigerant absorbs heat and is separated from the liquid refrigerant by the gas-liquid separator 316, the gaseous refrigerant flows back to the refrigeration compressor 311 to form a refrigerant cycle. Alternatively or additionally, the throttling device 315 can include, but is not limited to, an expansion valve, a capillary tube, a throttle valve, etc.

[0041] Alternatively or additionally, the refrigeration module 300 can further include a pressure switch 317 disposed at the outlet of the refrigeration compressor 311. The pressure switch 317 can be electrically connected to the refrigeration compressor 311. The pressure switch 317 can be configured to shut down the refrigeration compressor 311 when the outlet pressure of the refrigeration compressor 311 exceeds the pressure threshold. In this way, it is beneficial to improve the safety of the refrigeration module 300.

[0042] Alternatively or additionally, the refrigeration module 300 can further include a bypass valve 318. The outlet of the refrigeration compressor 311 can be connected to the inlet of the gas-liquid separator 316 through the bypass valve 318. A small circulation loop can be formed between the outlet of the refrigeration compressor 311 and the inlet of the gas-liquid separator 316 through the bypass valve 318. When the refrigeration capacity generated by the refrigeration compressor 311 at the lowest speed is still greater than the refrigeration capacity required by the heat exchange module 200, the small circulation loop is enabled through the bypass valve 318 to ensure that the evaporation temperature of the heat exchange module 200 is not lower than the set value and prevent the condensate water in the heat exchange module 200 from freezing due to low temperature, which affects the normal operation of the heat exchange module 200. In this way, it is beneficial to improve the operation stability of the freeze-drying system.

[0043] Alternatively or additionally, the refrigeration module 300 may further include one or more sensors. In one example, a pressure sensor 323 may be disposed between the outlet of the gas-liquid separator 316 and the inlet of the refrigeration compressor 311, and the inlet pressure of the refrigeration compressor 311 can be detected through the pressure sensor 323. In another example, a temperature sensor 324 may be disposed between the outlet of the refrigeration compressor 311 and the pressure switch 317, and the outlet temperature of the refrigeration compressor 311 can be detected through the temperature sensor 324. In yet another example, a pressure sensor 322 may be disposed near the hot-side inlet of the condenser 312, and the hot-side inlet pressure of the condenser 312 can be detected through the pressure sensor 322. It can be understood that the positions and types of the above sensors are only exemplary. In actual applications, any type of sensor can be disposed at any position in the refrigerant circulation loop according to actual needs.

[0044] In some embodiments, the drying filter 314 and the throttling device 315 may be disposed in the third region 130, and the refrigeration compressor 311, the condenser 312, and the gas-liquid separator 316 are disposed in the second region 120. In this way, the relatively large-sized refrigeration compressor 311, condenser 312, and gas-liquid separator 316 are centrally arranged on one side of the heat exchange module 200, and the relatively small-sized drying filter 314 and throttling device 315 are arranged on the other side of the heat exchange module 200, which can make full use of the space on the base 100 and make the overall layout of the refrigerated drying system compact. Moreover, since the drying filter 314 and the throttling device 315 are relatively small in size, the side of the heat exchange module 200 close to the third region 130 can facilitate maintenance personnel to perform maintenance on each component of the refrigerated drying system from opposite sides.

[0045] In some embodiments, at least one refrigeration module 300 includes a plurality of refrigeration modules 300, and the plurality of refrigeration modules 300 share the same condenser 312, and the condenser 312 extends along the second direction. Alternatively or additionally, the condenser 312 may have a cold-side channel and a plurality of hot-side channels, and the plurality of hot-side channels of the condenser 312 are respectively connected to the refrigerant circulation loops of the plurality of refrigeration modules 300.

[0046] Exemplarily, such as Figure 4 and Figure 5As shown, the condenser 312 may include a cylindrical or approximately cylindrical housing, an inlet pipe and an outlet pipe. A plurality of refrigerant pipes for forming a hot-side channel may be provided inside the housing. Both ends of the refrigerant pipes may extend out from the circumferential side of the housing and be respectively connected to the refrigeration compressors 311 and the dryer filters 314 of a plurality of refrigeration modules 300. The inlet pipe and the outlet pipe may be provided at one end of the housing. A cold source medium may be conveyed into the inner cavity of the housing through the inlet pipe, and the cold source medium (such as water) in the inner cavity of the housing may flow out through the outlet pipe. It can be understood that in actual applications, an appropriate medium may be selected as the cold source medium according to actual needs, and the specific composition of the cold source medium is not limited herein.

[0047] Alternatively or additionally, in the case where the at least one refrigeration module 300 includes a plurality of refrigeration modules 300, the plurality of refrigeration modules 300 share one condenser 312, that is, the plurality of hot-side channels of the condenser 312 are connected in parallel, and the cold-side channels of the condenser 312 are shared, that is, the liquid paths are in series.

[0048] Alternatively or additionally, valves 313 may be provided on the inlet pipe and / or the outlet pipe of the condenser 312. The flow rate of the cold source medium can be accurately controlled through the valves 313, and thus the hot-side outlet temperature of the condenser 312 can be accurately controlled.

[0049] In some embodiments, the condenser 312 is located on the second region 120 near the first region 110. In this way, it is beneficial to shorten the pipeline length between the condenser 312 and the dryer filter 314, and thus beneficial to simplify the pipeline structure of the freeze-drying system; at the same time, the heat exchange module 200 is spaced apart from the refrigeration compressor 311 to avoid the influence of high-temperature components on the heat exchange module 200 and ensure the stability of the heat exchange module 200. Exemplarily, the condenser 312 may be provided at the bottom end near the heat exchange module 200 and extend along, for example Figure 4 the Y-axis direction as shown.

[0050] In some embodiments, the at least one heat exchange module 200 and the at least one refrigeration module 300 are connected in a one-to-one correspondence. In this way, a cold-drying unit can be formed by one heat exchange module 200 and one refrigeration module 300, realizing the modular design of the freeze-drying system. One cold-drying unit or multiple cold-drying units can be selected and set according to the gas flow rate. In the case of setting multiple cold-drying units, the multiple cold-drying units may be arranged in sequence along the second direction on the base 100.

[0051] In some embodiments, as Figure 3 and Figure 4As shown, the heat exchange module 200 may include one or more heat exchangers 210. In the case where the heat exchange module 200 includes a plurality of heat exchangers 210, the plurality of heat exchangers 210 may be arranged along the second direction. In this way, the heat exchangers 210 of each heat exchange module 200 can also be arranged regularly and compactly.

[0052] Alternatively or additionally, an air inlet and an air outlet are provided at the top of the heat exchanger 210. The air inlet of the heat exchanger 210 is connected to the air inlet main pipe 410 through the air inlet branch pipe 221, and the air outlet of the heat exchanger 210 is connected to the air outlet main pipe 420 through the air outlet branch pipe. In this way, it is beneficial to miniaturize the refrigerated drying system and is beneficial to reducing the production cost of the refrigerated drying system.

[0053] Exemplarily, as Figure 1 and Figure 2 shown, the air inlet and the air outlet of the heat exchanger 210 may be respectively arranged at both ends of the top surface of the heat exchanger 210 in the first direction, and the air inlet and the air outlet of the heat exchanger 210 may be respectively located below the air inlet main pipe 410 and the air outlet main pipe 420. The bottom end of the air inlet branch pipe 221 may be connected to the air inlet of the heat exchanger 210, and the air inlet branch pipe 221 may extend vertically (i.e., Figure 1 the Z-axis direction in ), the top end of the air inlet branch pipe 221 is connected to the air inlet main pipe 410. The bottom end of the air outlet branch pipe 222 is connected to the air outlet of the heat exchanger 210, the air outlet branch pipe may extend vertically, and the top end of the air outlet branch pipe 222 is connected to the air outlet main pipe 420. In this way, it is beneficial to shorten the lengths of the air inlet branch pipe 221 and the air outlet branch pipe 222.

[0054] In some embodiments, such as Figure 6As shown, the heat exchanger 210 can be a three-in-one heat exchanger. Specifically, the heat exchanger 210 can include a precooler 212, an evaporator 211, and a water separator 213. The hot-side channel of the precooler 212 can be connected to the air inlet of the heat exchanger 210, and the cold-side channel of the precooler 212 can be connected to the air outlet of the heat exchanger 210. The precooler 212 can use the outlet air flow to precool the inlet air flow, reduce the temperature of the inlet air flow, and increase the temperature of the outlet air flow. The hot-side channel of the evaporator 211 can be connected to the hot-side channel of the precooler 212, and the cold-side channels of the evaporator 211 can be respectively connected to a throttling device 315 and a gas-liquid separator 316. The evaporator 211 can use the refrigerant to cool down the precooled gas. The air inlet of the water separator 213 can be connected to the hot-side channel of the evaporator 211, and the air outlet of the water separator 213 can be connected to the cold-side channel of the precooler 212. The water separator 213 can separate condensed water from the cooled gas. A drain pipe for draining water can be connected to the water outlet of the water separator 213, and a drain valve 214 can be provided on the drain pipe. By separating condensed water from the gas, the purpose of cooling and drying the gas is achieved. The gas after gas-water separation flows into the cold-side channel of the precooler 212, and then is discharged into the outlet main pipe 420 via the outlet branch pipe 222.

[0055] Alternatively or additionally, a temperature sensor 325 can be provided at the air inlet of the heat exchanger 210, and a temperature sensor 326 can be provided at the air outlet of the heat exchanger 210. The inlet air temperature of the heat exchanger 210 can be detected by the temperature sensor 325, and the outlet air temperature of the heat exchanger 210 can be detected by the temperature sensor 326.

[0056] Alternatively or additionally, a monitoring point 321 can be provided at the refrigerant outlet of the cold-side channel of the evaporator 211. In actual application, one or more sensors can be provided at the monitoring point 321 according to actual needs to monitor one or more parameters of the refrigerant outlet of the cold-side channel of the evaporator 211. Exemplarily, at least one of a temperature sensor, a pressure sensor, and a flow sensor can be provided at the monitoring point 321.

[0057] In some embodiments, the refrigeration module 300 includes a plurality of throttling devices 315. The dryer filter 314 is respectively connected to the plurality of throttling devices 315, and the plurality of throttling devices 315 are connected to the plurality of heat exchangers 210 in a one-to-one correspondence. In this way, it is beneficial to accurately control the refrigerant temperature flowing into each heat exchanger 210, and thus the cold drying effect of each heat exchanger 210 can be ensured. Exemplarily, the outlet of the dryer filter 314 can be connected to a main refrigerant pipeline, and the main refrigerant pipeline can extend along the second direction. At positions corresponding to the plurality of heat exchangers 210, a plurality of refrigerant branch pipelines can be respectively connected to the main refrigerant pipeline, and the plurality of refrigerant branch pipelines are respectively connected to the inlets of the plurality of throttling devices 315 in a one-to-one correspondence. The outlets of the plurality of throttling devices 315 can be respectively connected to the refrigerant inlets of the heat exchangers 210 through another refrigerant branch pipeline.

[0058] In some embodiments, the refrigerated drying system may further include a control module 430, and the control module 430 is disposed at one end of the second region 120 in the second direction. By using one control module 430 to control the plurality of heat exchange modules 200 and the plurality of refrigeration modules 300, in this way, the integration and compactness of the refrigerated drying system can be further improved. Alternatively or additionally, the control module 430 may include an electric control box, a power supply circuit, and a controller. The power supply circuit and the controller are disposed inside the electric control box. The power supply circuit can be respectively connected to the heat exchange module 200 and the refrigeration module 300 to supply power to the heat exchange module 200 and the refrigeration module 300. The controller can also be respectively connected to the heat exchange module 200 and the refrigeration module 300 to control the operation of the heat exchange module 200 and the refrigeration module 300.

[0059] In some embodiments, the refrigerated drying system may further include a box body (not shown in the figure). The box body covers the base 100 and jointly encloses a receiving space with the base 100. The main intake pipeline 410, the main outlet pipeline 420, at least one heat exchange module 200, and at least one refrigeration module 300 are located inside the receiving space. The box body can provide protection for structures such as pipelines, heat exchange modules 200, and refrigeration modules 300, which is beneficial to improving the safety, stability, and robustness of the refrigerated drying system.

[0060] Exemplarily, the base 100 can be formed by a rectangular plate-like structure, and the box body can be formed by a hollow and open-bottomed cuboid structure. The dimensions in the length direction and width direction of the box body can be the same as or close to the long side dimension and short side dimension of the base 100. The box body covering the base 100 can jointly form a cuboid structure with the base 100. Alternatively or additionally, on one side of the box body close to the second region 120 and on one side close to the third region 120, a maintenance door or a maintenance window can be respectively provided to facilitate the maintenance of the refrigerated drying system.

[0061] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A freeze drying system, characterized in that: include: A base, wherein the top has a first area and a second area, and the second area is located on one side of the first area in the first direction; At least one heat exchange module is disposed in the first area, and the at least one heat exchange module is arranged along a second direction, and the second direction is perpendicular to the first direction; An air inlet main pipeline and an air outlet main pipeline are arranged above the at least one heat exchange module, and the air inlet main pipeline and the air outlet main pipeline are respectively connected to the air inlet and the air outlet of each heat exchange module, and At least one refrigeration module is arranged on the base along the second direction, the at least one refrigeration module is connected to the at least one heat exchange module through a refrigerant delivery pipeline, and at least part of the structure of each refrigeration module is arranged in the second area.

2. The freeze drying system according to claim 1, characterized in that: The base further includes a third area, which is located on the other side of the first area in the first direction; a portion of the structure of each refrigeration module is located in the second area, and another portion of the structure of each refrigeration module is located in the third area.

3. The freeze drying system according to claim 2, characterized in that: The refrigeration module includes a refrigeration compressor, a condenser, a drying filter, a throttling device, and a gas-liquid separator. The refrigeration compressor, the hot side channel of the condenser, the drying filter, the throttling device, the cold side channel of the heat exchange module and the gas-liquid separator are connected to form a refrigerant circulation pipeline.

4. The freeze drying system according to claim 3, characterized in that: The drying filter and the throttling device are arranged in the third area, and the refrigeration compressor, the condenser, and the gas-liquid separator are arranged in the second area.

5. The freeze drying system according to claim 4, characterized in that: The at least one refrigeration module includes a plurality of refrigeration modules, and the plurality of refrigeration modules share a condenser, which extends along the second direction.

6. The freeze drying system according to claim 5, characterized in that: The condenser is located on the second area close to the first area.

7. The freeze drying system according to claim 1, characterized in that: The at least one heat exchange module and the at least one refrigeration module are connected in a one-to-one correspondence.

8. The freeze drying system according to claim 7, characterized in that: The heat exchange module includes a plurality of heat exchangers, and the plurality of heat exchangers are arranged along the second direction.

9. The freeze drying system according to claim 8, characterized in that: An air inlet and an air outlet are provided at the top of each heat exchanger. The air inlet of the heat exchanger is connected to the air inlet main pipe through an air inlet branch pipe, and the air outlet of the heat exchanger is connected to the air outlet main pipe through an air outlet branch pipe.

10. The freeze drying system according to claim 1, characterized in that: The at least one refrigeration module includes a plurality of refrigeration modules and the plurality of refrigeration modules are connected in parallel, and / or the at least one heat exchange module includes a plurality of heat exchange modules and the plurality of heat exchange modules are connected in parallel.

11. The freeze drying system according to claim 1, characterized in that: A control module is also included, and the control module is arranged at one end of the second area in the second direction.

12. The freeze drying system according to claim 1, characterized in that: It also includes a box body, which is covered on the base and together with the base forms a storage space, and the air inlet main pipeline, the air outlet main pipeline, the at least one heat exchange module and the at least one refrigeration module are located in the storage space.

Images