CN218033807U - Freezing and drying multi-working-condition operation system - Google Patents
Freezing and drying multi-working-condition operation system Download PDFInfo
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- CN218033807U CN218033807U CN202222020500.4U CN202222020500U CN218033807U CN 218033807 U CN218033807 U CN 218033807U CN 202222020500 U CN202222020500 U CN 202222020500U CN 218033807 U CN218033807 U CN 218033807U
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Abstract
The utility model discloses a freezing and dry multiplex condition operating system, including compressor arrangement and expansion device, compressor arrangement and expansion device pass through the circulating line intercommunication, the circulating line has low temperature section and high temperature section, is equipped with condensing equipment on the high temperature section, and the circulating line communicates respectively through two exit ends of working medium switching-over device on the low temperature section and is parallelly connected first working condition pipeline entry end and second working condition pipeline entry end that sets up, the entry end of working medium switching-over device is linked together with the working medium exit end of expansion device, first working condition pipeline exit end and second working condition pipeline exit end converge into the circulating line and are linked together with the working medium entry end of compressor arrangement, and first evaporation plant and second evaporation plant set up respectively on first working condition pipeline and second working condition pipeline; in addition, the system also comprises a dry gas path system, and a plurality of gas paths are formed by combining the plurality of gas flow reversing devices and the gas flow channels to adjust the operation of the dry gas flow in the gas paths of the system.
Description
Technical Field
The utility model relates to an economizer system, concretely relates to freezing and dry multiplex condition operating system.
Background
At present, a freezing and refrigerating system is mostly adopted for storing perishable products such as agricultural and sideline products and the like, and heat absorption is carried out in a closed cold storage by utilizing a refrigerating cycle mode, so that the internal temperature of the cold storage is reduced, and the quality guarantee period of the agricultural and sideline products is prolonged. Considering that the refrigerating system releases heat at the condensing device when operating, in order to utilize the heat generated by the condensing device, it is a meaningful work to develop a corresponding waste heat recovery device, and perform a drying operation by recovering the heat to the drying chamber.
At present, a set of dry airflow channels are matched on a refrigerating system of a freezing warehouse, cold and heat are obtained through an evaporation device and a condensation device of gas in the dry airflow channels on the refrigerating system, the gas in the airflow channels is respectively dried and heated, and the dried and heated gas is conveyed to a drying chamber for drying operation. Because freezing and stoving often face the operating condition of multiplex condition, and ambient temperature changes complicatedly, therefore, how under the requirement of complicated operating condition, make freezing and drying system have more adaptability to the operating condition and have better answer mode, be worth studying.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a freezing and dry multiplex condition operating system, this system mainly comprises refrigerating system and dry airflow channel system to it is in the use to expect to solve current freezing and dry integrative system, in the face of complicated operating mode, the problem that current system is difficult for coping with.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a freezing and drying multi-working-condition operation system comprises a compression device and an expansion device, wherein the compression device and the expansion device are mutually communicated through a circulation pipeline, a working medium is arranged in the circulation pipeline, and the circulation pipeline is provided with a low-temperature section and a high-temperature section; the high-temperature section is provided with a condensing device, the low-temperature section is provided with a first evaporation device and a second evaporation device, the low-temperature section is also provided with a working medium reversing device, two outlet ends of the working medium reversing device are respectively communicated with an inlet end of a first working condition pipeline and an inlet end of a second working condition pipeline which are arranged in parallel, and the inlet end of the working medium reversing device is communicated with a working medium outlet end of an expansion device; the outlet end of the first working condition pipeline and the outlet end of the second working condition pipeline are converged and then communicated with the working medium inlet end of the compression device; specifically, two outlet ends of the working medium reversing device are respectively communicated with an inlet end of a first working condition pipeline and an inlet end of a second working condition pipeline which are arranged in parallel, the inlet end of the working medium reversing device is communicated with a circulating pipeline connected with the outlet end of the expansion device, and the outlet end of the first working condition pipeline and the outlet end of the second working condition pipeline are communicated with the circulating pipeline connected with the inlet end of the compression device after being converged. The first evaporation device is arranged on the first working condition pipeline, and the second evaporation device is arranged on the second working condition pipeline; the condensing device is arranged in a first air flow channel, a first gas conveying device is further arranged on the first air flow channel, the first air flow channel is communicated with the first gas conveying device, one end of the first air flow channel is communicated with the outside, and the other end of the first air flow channel is communicated with the drying chamber; the second evaporation device is arranged in a second airflow channel, a second gas conveying device is further arranged on the second airflow channel, and the second airflow channel is communicated with the second gas conveying device; one end of the second air flow channel is communicated with the outside, the other end of the second air flow channel is communicated with the first air flow channel through a first air flow reversing device, and the first air flow reversing device is arranged on the air flow inlet side of the condensing device on the first air flow channel.
Preferably, the first air flow channel is further communicated with one end of a fourth air flow channel through a third air flow reversing device, and the other end of the fourth air flow channel is communicated with the outside; the third airflow reversing device is arranged between the airflow outlet side of the condensing device on the first airflow channel and the drying chamber.
Preferably, the second airflow channel is also communicated with one end of a third airflow channel through a second airflow reversing device, and the other end of the third airflow channel is communicated with the outside; the second airflow reversing device is arranged between the airflow outlet side of the second evaporation device on the second airflow channel and the first airflow reversing device.
Preferably, the drying chamber is further communicated with a fifth airflow channel, the fifth airflow channel is used for outputting airflow of the drying chamber, the second airflow channel is further provided with a fourth airflow reversing device, the fourth airflow reversing device is arranged on the airflow inlet side of the second evaporation device on the second airflow channel, and the fifth airflow channel is communicated with the second airflow channel through the fourth airflow reversing device.
Preferably, a sixth air flow channel is arranged on the drying chamber, one end of the sixth air flow channel is communicated with the outside, the other end of the sixth air flow channel is communicated with the drying chamber, the sixth air flow channel is used for inputting air into the drying chamber, and an air flow stopping device is arranged on the sixth air flow channel.
Preferably, a seventh airflow channel is arranged on the drying chamber, one end of the seventh airflow channel is communicated with the drying chamber, the other end of the seventh airflow channel is communicated with the outside, the seventh airflow channel is used for outputting the air in the drying chamber, and an airflow stop device is arranged on the seventh airflow channel.
Preferably, the first working condition pipeline and the second working condition pipeline are both provided with one-way valves, and the one-way valves are used for conveying the working medium to the compression device in a one-way mode.
Preferably, a first detection point is arranged on the circulating pipeline adjacent to the inlet end of the compression device, and the first detection point is used for installing monitoring equipment and detecting the temperature and the pressure of the working medium in the circulating pipeline before the working medium enters the compression device. An electric heater is arranged on the circulating pipeline, is adjacent to the first detection point and flows in the upstream direction of the working medium flowing through the first detection point, and is used for heating the working medium entering the compression device. And a second detection point is arranged on the circulating pipeline adjacent to the inlet end of the expansion device and used for installing monitoring equipment and detecting the temperature and the pressure of the working medium before the working medium enters the expansion device.
According to a further technical scheme, a fourth gas conveying device is arranged on the fifth gas flow channel and used for pumping out gas in the drying chamber.
According to a further technical scheme, a fifth gas conveying device is arranged on the seventh gas flow channel and used for pumping out gas in the drying chamber.
According to a further technical scheme, a third gas conveying device is arranged on the sixth gas flow channel and used for inputting gas into the drying chamber.
Compared with the prior art, the beneficial effects of the utility model are one of following at least: the utility model discloses a design two evaporation plant in the system to insert the circulating line through working medium switching-over device with two evaporation plant through parallel mode, thereby accessible working medium switching-over device switches over the state of two evaporation plant work in the system, makes two evaporation plant of flow through alone or simultaneously of working medium, compares in the form of two evaporation plant series connections, can better satisfy the demand of multiplex condition.
In addition, the utility model forms a plurality of gas paths for adjusting the operation of the dry gas flow in the gas path of the system by combining a plurality of gas flow reversing devices and gas flow channels, so that the system can adapt to multiple working conditions for use, thereby realizing multiple purposes of one machine, saving investment and energy; meanwhile, the pressure and the temperature at the inlet of the expansion device and the inlet of the compression device are monitored, the supercooling degree and the superheat degree are calculated and correspondingly adjusted, and an electric heater is assisted to ensure the normal operation of the system; the freezing and drying integrated system for multiple working conditions is suitable for being used under multiple freezing and drying working conditions.
The utility model discloses still support the drying chamber to carry out the dry operating mode of semi-open semi-closed to make drying chamber stoving operation have more dry operating mode to select.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
101-a compression device, 102-an expansion device, 103-a condensation device, 104-a first evaporation device, 105-a second evaporation device, 106-a working medium reversing device, 107-a first working condition pipeline, 108-a second working condition pipeline, 109-a one-way valve, 201-a first air flow channel, 202-a second air flow channel, 203-a third air flow channel, 204-a fourth air flow channel, 205-a fifth air flow channel, 206-a sixth air flow channel, 207-a seventh air flow channel, 301-a first air flow reversing device, 302-a second air flow reversing device, 303-a third air flow reversing device, 304-a fourth air flow reversing device, 401-a first gas conveying device, 402-a second gas conveying device, 403-a third gas conveying device, 404-a fourth gas conveying device, 405-a fifth gas conveying device, 1-a circulating pipeline, 2-a refrigeration house, 3-a drying chamber, 4-an electric heater, 5-a first detection point and 6-a second detection point.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1:
referring to fig. 1, an embodiment of the present invention is a freezing and drying multi-operating-condition operation system, including a compression device 101 and an expansion device 102, where the compression device 101 and the expansion device 102 are communicated with each other through a circulation pipeline 1, and a working medium is in the circulation pipeline 1, where the working medium in the circulation pipeline 1 is a refrigerant of an existing refrigeration system, and the circulation pipeline 1 has a low-temperature section and a high-temperature section; the low-temperature section is provided with a first evaporation device 104 and a second evaporation device 105, the first evaporation device 104 and the second evaporation device 105 are both existing evaporation heat exchangers, and the low-temperature section is a pipeline part of a working medium flowing from the expansion device 102 to the compression device 101 through the evaporation heat exchangers; the first evaporation device 104 and the second evaporation device 105 are used for absorbing heat to the outside by working medium flowing through, and the working medium has relatively high heat energy after passing through the heat exchange effect of the first evaporation device 104 or the second evaporation device 105; the high-temperature section is provided with a condensing device 103, the condensing device 103 is an existing condensing heat exchanger, and the high-temperature section is a pipeline part of a working medium flowing from the compression device 101 to the expansion device 102 through the condensing heat exchanger; the condensing heat exchanger is mainly used for releasing heat in a working medium flowing through the condensing heat exchanger so as to discharge heat energy in the working medium, and the condensing device 103 is used for heating gas participating in drying in the freezing and drying multi-working-condition operation system; a working medium reversing device 106 is further arranged on the low-temperature section, two outlet ends of the working medium reversing device 106 are respectively communicated with an inlet end of a first working condition pipeline 107 and an inlet end of a second working condition pipeline 108 which are arranged in parallel, the inlet end of the working medium reversing device 106 is communicated with a working medium outlet end of the expansion device 102, and the outlet end of the first working condition pipeline 107 and the outlet end of the second working condition pipeline 108 converge into the circulating pipeline 1 and are communicated with a working medium inlet end of the compression device 101; the working medium reversing device 106 can adopt a three-way pipe structure, and flow control valves are arranged at the joints of the working medium reversing device 106 and the first working condition pipeline 107 and the second working condition pipeline 108 so as to adjust the working medium flow in the first working condition pipeline 107 and the second working condition pipeline 108; because the first working condition pipeline 107 and the second working condition pipeline 108 are connected to the working medium reversing device 106 in a parallel connection mode, the working medium can selectively enter the first working condition pipeline 107 or the second working condition pipeline 108 after flowing through the working medium reversing device 106, and can also enter the first working condition pipeline 107 and the second working condition pipeline 108 at the same time; the first evaporation device 104 is installed on the first working condition pipeline 107, the second evaporation device 105 is installed on the second working condition pipeline 108, working medium heat absorption processes entering the first working condition pipeline 107 and the second working condition pipeline 108 are respectively carried out, and mutual influence cannot be caused.
If the refrigeration house 2 needs to be refrigerated, the first evaporation device 104 needs to absorb heat from the refrigeration house, and in general, in order to ensure that the working medium in the circulation pipeline 1 flows through the first evaporation device 104, the working medium reversing device 106 regulates the working medium to flow into the first working condition pipeline 107. At this time, if the refrigeration house 2 needs higher refrigeration efficiency, the working medium in the circulation pipeline 1 only flows through the first evaporation device 104, at this time, the working medium reversing device 106 blocks the flow of the working medium to the second working condition pipeline 108, and the second evaporation device 105 stops cooling and drying the gas in the second airflow channel 202 in this state.
If the refrigeration house 2 is not refrigerated or is refrigerated in a small quantity temporarily, at this time, the working medium reversing device 106 can adjust the working medium to flow to the second working condition pipeline 108, the working medium flowing into the second working condition pipeline 108 flows through the second evaporation device 105, because the second evaporation device 105 absorbs heat to cool the gas in the second airflow channel 202, the moisture in the airflow is separated out due to the cooling, and the gas in the second airflow channel 202 becomes dry after flowing through the second evaporation device 105.
It should be noted that, in order to ensure that the air flows normally in the first air flow channel 201 and the second air flow channel 202, the first air flow reversing device 301 may be an existing three-way valve, three paths of the first air flow reversing device 301 are provided with switch assemblies, and the first air flow channel 201 can be switched on and off with the outside and the first air flow channel 201 can be switched on and off with the second air flow channel 202 by the first air flow reversing device 301.
The first gas delivery device 401 and the second gas delivery device 402 may be conventional fans.
Example 2:
based on the above embodiment, another embodiment of the present invention is that the first airflow channel 201 is further communicated with one end of the fourth airflow channel 204 through the third airflow reversing device 303, and the other end of the fourth airflow channel 204 is communicated with the outside; the third airflow diverter 303 is disposed between the airflow outlet side of the condensing unit 103 in the first airflow path 201 and the drying chamber 3. The third air flow reversing device 303 is a three-way valve with a switch assembly, which is the same as the first air flow reversing device 301. The third airflow reversing device 303 adjusts the on-off state of the first airflow channel 201 and the fourth airflow channel 204, so that not only can the airflow in the first airflow channel 201 be adjusted to be input into the drying chamber 3, but also the airflow in the first airflow channel 201 can be directly discharged to the outside through the fourth airflow channel 204 when necessary.
Example 3:
based on the above embodiment, another embodiment of the present invention is that the second airflow channel 202 is further communicated with one end of the third airflow channel 203 through the second airflow reversing device 302, the other end of the third airflow channel 203 is communicated with the outside, and the second airflow reversing device 302 is disposed between the airflow outlet side of the second evaporation device 105 on the second airflow channel 202 and the first airflow reversing device 301. The second air flow reversing device 302 is the same as the first air flow reversing device 301, and is a three-way valve with a switch assembly. The on-off state of the second airflow channel 202 and the third airflow channel 203 is adjusted by the second airflow reversing device 302, so that not only can the airflow in the second airflow channel 202 be effectively adjusted to be directly discharged to the outside through the third airflow channel 203, but also the first airflow reversing device 301 is adjusted to be communicated with the first airflow channel 201 in a matching manner when necessary, and the airflow in the second airflow channel 202 can be effectively adjusted to be input into the first airflow channel 201.
Example 4:
based on the above embodiment, another embodiment of the present invention is that the system further includes a fifth airflow channel 205, the drying chamber 3 is communicated with the fifth airflow channel 205, the fifth airflow channel 205 is used for outputting the airflow of the drying chamber 3, the second airflow channel 202 is further provided with a fourth airflow reversing device 304, the fourth airflow reversing device 304 is disposed on the airflow inlet side of the second evaporation device 105 on the second airflow channel 202, and the fifth airflow channel 205 is communicated with the second airflow channel 202 through the fourth airflow reversing device 304. The fifth air flow channel 205 may be provided with a shut-off valve; the fourth air flow reversing device 304 on the second air flow channel 202 is the same as the first air flow reversing device 301, and is a three-way valve with a switch assembly, and the air flow in the fifth air flow channel 205 and the second air flow channel 202 can be adjusted by the fourth air flow reversing device 304.
During operation, when the fourth airflow reversing device 304 regulates the fifth airflow channel 205 to communicate with the second airflow channel 202, the gas in the drying chamber 3 is output through the fifth airflow channel 205, the gas is reversed through the fourth airflow reversing device 304 via the fifth airflow channel 205 and enters the second airflow channel 202, then the gas is cooled and dried by the second evaporation device 105 on the second airflow channel 202, the dried gas is reversed through the first airflow reversing device 301 along the second airflow channel 202 and enters the first airflow channel 201, and is heated by the condensing device 103 in the first airflow channel 201 and then enters the drying chamber 3 for recycling.
If necessary, the air in the drying chamber 3 is output through the fifth airflow channel 205, the air is reversed by the fourth airflow reversing device 304 and enters the second airflow channel 202, then the air absorbs heat by the second evaporation device 105 in the second airflow channel 202, and the air losing heat energy is reversed by the second airflow reversing device 302 and directly discharged to the outside through the third airflow channel 203.
Example 5:
based on the above embodiment, the utility model discloses a another embodiment is, in order to directly input the drying chamber 3 with the outside air, be equipped with sixth airflow channel 206 on the drying chamber 3, the one end intercommunication external world of sixth airflow channel 206, the other end intercommunication drying chamber 3 of sixth airflow channel 206, sixth airflow channel 206 is used for to drying chamber 3 input gas, be equipped with the air current stop device on the sixth airflow channel 206. When the sixth air flow path 206 is opened, the air flow inputted from the sixth air flow path 206 can directly enter the drying chamber 3. When the sixth air flow channel 206 and the first air flow channel 201 simultaneously supply air to the drying chamber 3, the two air flows may produce a mixing effect of the air flows in the drying chamber 3. The gas flow shut-off device may be an existing shut-off valve.
Example 6:
based on the above embodiment, another embodiment of the present invention is that, a seventh airflow channel 207 is arranged on the drying chamber 3, one end of the seventh airflow channel 207 is communicated with the drying chamber 3, the other end of the seventh airflow channel 207 is communicated with the outside, the seventh airflow channel 207 is used for outputting the gas of the drying chamber 3, and an airflow stop device is arranged on the seventh airflow channel 207. When the gas of the drying chamber 3 is not circulated through the fifth gas flow path 205, the gas of the drying chamber 3 may be directly discharged to the outside through the seventh gas flow path 207.
Further, when the air in the drying chamber 3 is exhausted through the fifth air flow channel 205 and circulated for use, in order to reduce the hard-condensable volatile components generated in some objects to be dried to affect the drying effect, the sixth air flow channel 206 should cooperate with the fifth air flow channel 205 to exhaust the air which flows back through the second air flow channel 202 and the first air flow channel 201 for circulation use, and simultaneously convey the air to the drying chamber 3, and the seventh air flow channel 207 and the fifth air flow channel 205 output the air simultaneously, so that the concentration of the hard-condensable volatile components in the drying chamber 3 is reduced while ensuring higher drying efficiency.
Example 7:
based on the above-mentioned embodiment, the utility model discloses an another embodiment is, all be equipped with check valve 109 on first operating mode pipeline 107 and the second operating mode pipeline 108, check valve 109 is used for carrying working medium to compressor arrangement 101 one-way to make the working medium of circulating line 1 low temperature section only can one-way flow through by the evaporation plant heat absorption that working medium switching-over device 106 opened, can not appear in the working medium reverse entering is closed by working medium switching-over device 106 evaporation plant.
Example 8:
based on the above embodiment, another embodiment of the present invention is that, in order to make the refrigeration system have good working stability in the working process, a first detection point 5 is arranged on the circulation pipeline 1 near the working medium inlet end of the compression device 101, and the first detection point 5 is used for installing a monitoring device to detect the temperature and pressure before the working medium enters the compression device 101 in the circulation pipeline 1; an electric heater 4 is arranged on the upstream side of the circulating pipeline 1, which is close to the first detection point 5, and the electric heater 4 is used for heating the working medium entering the compression device 101; a second detection point 6 is arranged on the circulating pipeline 1 near the working medium inlet end of the expansion device 102, and the second detection point 6 is used for installing monitoring equipment to detect the temperature and the pressure of the working medium before the working medium enters the expansion device 102. The temperature and the pressure of the working medium in the circulating pipeline 1 before entering the compression device 101 are detected at the first detection point 5, so that the pressure value and the temperature value of the working medium are obtained, the temperature difference between the temperature value of the working medium at the inlet end of the compression device 101 and the saturation temperature corresponding to the pressure value is further calculated, and the superheat degree is obtained; if the superheat degree is too large, measures need to be taken to reduce the heat absorption capacity of the first evaporation device 104 or the second evaporation device 105; if the superheat degree is too small, measures are taken to increase the heat absorption capacity of the first evaporation device 104 or the second evaporation device 105, wherein the electric heater 4 is an existing electromagnetic heater, and the superheat degree is too small, so that the superheat degree can be increased by the aid of the electric heater 4. Through setting up second check point 6, through temperature and pressure before the medium gets into expansion device 102 in second check point 6 detection circulating line 1 to obtain the pressure value and the temperature value of medium, and then calculate the temperature difference between the saturation temperature that the temperature value of expansion device 102 entry end medium and pressure value correspond, thereby obtain the super-cooling degree and take measures to change condensing equipment's heat release and make the super-cooling degree at reasonable scope, the aperture of adjustment expansion device 102 is coordinated simultaneously, the even running of system is ensured.
Example 9:
based on the above embodiment 4, in order to make the gas flow better, the fifth gas flow channel 205 is provided with the fourth gas conveying device 404, and the fourth gas conveying device 404 is used for the fifth gas flow channel 205 to extract the gas in the drying chamber 3. The operation of the fourth gas delivery device 404 facilitates the rapid drawing of the gas from the drying chamber 3 by the fifth gas flow channel 205. The fourth gas delivery device 404 may be an existing blower.
Example 10:
based on the above embodiment 6, the seventh gas flow channel 207 is provided with the fifth gas delivery device 405, and the fifth gas delivery device 405 is used for pumping out the gas in the drying chamber 3. The fifth gas delivery device 405 may be an existing exhaust fan.
Example 11:
based on the above embodiment 5, the sixth gas flow channel 206 may be provided with a third gas delivery device 403, and the third gas delivery device 403 is used for inputting gas into the drying chamber 3; when the sixth air flow channel 206 is not needed to work, the third air delivery device 403 stops running, the air flow stopping device on the sixth air flow channel 206 blocks the air flow from entering the drying chamber 3, and the air in the drying chamber 3 can be input only through the first air flow channel 201. The third gas delivery device 403 may be an existing exhaust fan.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (10)
1. A freezing and drying multi-working-condition operation system comprises a compression device (101) and an expansion device (102), wherein the compression device (101) and the expansion device (102) are communicated with each other through a circulating pipeline (1), working media are arranged in the circulating pipeline (1), and the circulating pipeline (1) is provided with a low-temperature section and a high-temperature section; be equipped with condensing equipment (103) on the high temperature section, be equipped with first evaporation plant (104) and second evaporation plant (105) on the low temperature section, its characterized in that:
a working medium reversing device (106) is further arranged on the low-temperature section, two outlet ends of the working medium reversing device (106) are respectively communicated with an inlet end of a first working condition pipeline (107) and an inlet end of a second working condition pipeline (108) which are arranged in parallel, and the inlet end of the working medium reversing device (106) is communicated with a working medium outlet end of the expansion device (102); the outlet end of the first working condition pipeline (107) and the outlet end of the second working condition pipeline (108) converge into the circulating pipeline (1) and are communicated with the working medium inlet end of the compression device (101);
the first evaporation device (104) is arranged on a first working condition pipeline (107), and the second evaporation device (105) is arranged on a second working condition pipeline (108);
the condensing device (103) is arranged in a first air flow channel (201), a first gas conveying device (401) is further arranged on the first air flow channel (201), the first air flow channel (201) is communicated with the first gas conveying device (401), one end of the first air flow channel (201) is communicated with the outside, and the other end of the first air flow channel (201) is communicated with the drying chamber (3); the second evaporation device (105) is arranged in a second air flow channel (202), a second air conveying device (402) is further arranged on the second air flow channel (202), and the second air flow channel (202) is communicated with the second air conveying device (402); one end of the second air flow channel (202) is communicated with the outside, the other end of the second air flow channel (202) is communicated with the first air flow channel (201) through a first air flow reversing device (301), and the first air flow reversing device (301) is arranged on the air flow inlet side of the condensing device (103) on the first air flow channel (201).
2. The freezing and drying multi-condition operation system according to claim 1, wherein: the first air flow channel (201) is also communicated with one end of a fourth air flow channel (204) through a third air flow reversing device (303), and the other end of the fourth air flow channel (204) is communicated with the outside; the third air flow reversing device (303) is arranged between the air flow outlet side of the condensing device (103) on the first air flow channel (201) and the drying chamber (3).
3. The freezing and drying multi-condition operation system according to claim 1, wherein: the second air flow channel (202) is also communicated with one end of a third air flow channel (203) through a second air flow reversing device (302), the other end of the third air flow channel (203) is communicated with the outside, and the second air flow reversing device (302) is arranged between the air flow outlet side of the second evaporation device (105) on the second air flow channel (202) and the first air flow reversing device (301).
4. The freezing and drying multi-condition operation system according to claim 1, wherein: the drying chamber (3) is also communicated with a fifth airflow channel (205), the fifth airflow channel (205) is used for outputting airflow of the drying chamber (3), the second airflow channel (202) is also provided with a fourth airflow reversing device (304), the fourth airflow reversing device (304) is arranged on the airflow inlet side of the second evaporation device (105) on the second airflow channel (202), and the fifth airflow channel (205) is communicated with the second airflow channel (202) through the fourth airflow reversing device (304).
5. The freezing and drying multi-condition operation system according to claim 1, wherein: the drying chamber (3) is provided with a sixth air flow channel (206), one end of the sixth air flow channel (206) is communicated with the outside, the other end of the sixth air flow channel (206) is communicated with the drying chamber (3), the sixth air flow channel (206) is used for inputting air to the drying chamber (3), and the sixth air flow channel (206) is provided with an air flow stopping device.
6. The freezing and drying multi-condition operation system according to claim 1, wherein: the drying chamber (3) is provided with a seventh airflow channel (207), one end of the seventh airflow channel (207) is communicated with the drying chamber (3), the other end of the seventh airflow channel (207) is communicated with the outside, the seventh airflow channel (207) is used for outputting the air of the drying chamber (3), and the seventh airflow channel (207) is provided with an airflow stopping device.
7. The freezing and drying multi-condition operation system according to claim 1, wherein: and the first working condition pipeline (107) and the second working condition pipeline (108) are respectively provided with a one-way valve (109), and the one-way valves (109) are used for conveying the working medium to the compression device (101) in a one-way manner.
8. The freezing and drying multi-condition operation system according to claim 1, wherein: a first detection point (5) is arranged on the circulating pipeline (1) near the working medium inlet end of the compression device (101), and the first detection point (5) is used for installing monitoring equipment to detect the temperature and the pressure of the working medium in the circulating pipeline (1) before entering the compression device (101); an electric heater (4) is arranged on the upstream side of the circulating pipeline (1) close to the first detection point (5), and the electric heater (4) is used for heating working media entering the compression device (101); and a second detection point (6) is arranged on the circulating pipeline (1) adjacent to the working medium inlet end of the expansion device (102), and the second detection point (6) is used for installing monitoring equipment to detect the temperature and the pressure of the working medium before the working medium enters the expansion device (102).
9. The freeze and dry multi-condition operating system of claim 4, wherein: and a fourth gas conveying device (404) is arranged on the fifth gas flow channel (205), and the fourth gas conveying device (404) is used for pumping out gas in the drying chamber (3).
10. The freezing and drying multi-condition operation system according to claim 6, wherein: and a fifth gas conveying device (405) is arranged on the seventh gas flow channel (207), and the fifth gas conveying device (405) is used for pumping out the gas in the drying chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222020500.4U CN218033807U (en) | 2022-08-02 | 2022-08-02 | Freezing and drying multi-working-condition operation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222020500.4U CN218033807U (en) | 2022-08-02 | 2022-08-02 | Freezing and drying multi-working-condition operation system |
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