CN212362660U - Drying apparatus - Google Patents

Abstract

The utility model provides a drying device. The drying apparatus includes: the drying device is provided with an air inlet, a drying cavity and an air return opening, and the drying cavity is communicated with the air inlet and the air return opening; the first solution assembly is communicated with the air return opening and comprises a first filler and a first liquid distributor, the first liquid distributor is used for spraying a salt solution to the first filler, and gas discharged from the air return opening absorbs moisture in the salt solution; the cooling assembly is positioned on one side of the first solution assembly, which is far away from the air return inlet; the second solution assembly is positioned on one side, away from the air return opening, of the cooling assembly and comprises a second filler and a second liquid distributor, the second liquid distributor is used for spraying a salt solution to the second filler, and the salt solution positioned in the second filler absorbs moisture in the gas passing through the second filler; and the heating assembly is positioned on one side of the second solution assembly close to the air inlet. The utility model discloses the great problem of drying equipment's energy consumption among the prior art has been solved effectively.

Description

Drying apparatus

Technical Field

The utility model relates to a drying equipment technical field particularly, relates to a drying equipment.

Background

At present, the collagen casing is prepared by taking collagen fiber as a raw material, is used for preparing various sausages, and has the characteristics of easy use, good taste and uniform diameter. In the production process of the collagen casing, the surface of the casing needs to be sprayed with liquid, and then the casing needs to be dried so as to carry out the subsequent processes of folding and shrinking.

In the prior art, the sausage casing is dried mainly in two ways:

1) the casing is dried by adopting circulating air, low-humidity fresh air is supplemented to the circulating air, a part of high-temperature high-humidity air is discharged, and the circulating air is heated by utilizing a high-temperature heat source. However, the enthalpy value of the exhaust air in the drying mode is far higher than that of the fresh air, and the exhaust air exhausts a large amount of heat, so that the energy consumption is high. In addition, in summer, because the humidity of the fresh air is large and can not meet the dehumidification requirement, the production is stopped, and the enterprise benefit is influenced. In southern hot and humid areas, this drying process is not basically feasible.

2) The evaporator of the heat pump system is used for cooling and dehumidifying part of the circulating air, the condenser of the heat pump system is used for heating the circulating air, and finally the high-temperature heat source is used for supplementing heating. However, the drying method requires a large amount of cold energy consumed by the drying equipment to cool the temperature of the dry bulb to the dew point, and then dehumidification can be started, so that the utilization rate of the cold energy is low, and the energy consumption of the heat pump is large. Meanwhile, freeze dehumidification cannot be handled to a very low dew point due to the problem of frosting.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a drying apparatus to solve the problem of the prior art that the energy consumption of the drying apparatus is large.

In order to achieve the above object, the present invention provides a drying apparatus, comprising: the drying device is provided with an air inlet, a drying cavity and an air return opening, and the drying cavity is communicated with the air inlet and the air return opening; the first solution assembly is communicated with the air return opening and comprises a first filler and a first liquid distributor, the first liquid distributor is used for spraying a salt solution to the first filler, and gas discharged from the air return opening absorbs moisture in the salt solution; the cooling assembly is positioned on one side of the first solution assembly, which is far away from the air return inlet; the second solution assembly is positioned on one side, away from the air return opening, of the cooling assembly and comprises a second filler and a second liquid distributor, the second liquid distributor is used for spraying a salt solution to the second filler, and the salt solution positioned in the second filler absorbs moisture in the gas passing through the second filler; and the heating assembly is positioned on one side of the second solution assembly close to the air inlet.

Further, cooling subassembly includes first cooling structure, and drying equipment still includes: and the cold energy recovery device is positioned between the second solution component and the heating component and is communicated with the first cooling structure so as to be used for carrying out heat exchange with the first cooling structure.

Further, the first solution module further comprises: the first storage structure is used for storing the salt solution and is communicated with the bottom of the first filler; the first pump body structure is communicated with the first storage structure and the first liquid distributor so as to pump the salt solution in the first storage structure into the first liquid distributor.

Further, the second solution module further comprises: the second storage structure is used for storing the salt solution and is communicated with the bottom of the second filler; and the second pump body structure is communicated with the second storage structure and the second liquid distributor so as to pump the saline solution in the second storage structure into the second liquid distributor.

Further, the drying apparatus further includes: the first liquid outlet of the first storage structure is communicated with the first liquid inlet of the second storage structure through the first pipeline; the second liquid outlet of the second storage structure is communicated with the second liquid inlet of the first storage structure through a second pipeline; and the recovery device is arranged on the first pipeline and the second pipeline and is used for recovering heat and cold.

Further, the cooling subassembly still includes first evaporimeter, and heating element includes first condenser, and drying equipment still includes first heat exchange assemblies, and first heat exchange assemblies includes: the first compressor, the refrigerant after the first compressor compresses enters the first condenser, in order to heat the gas; the refrigerant discharged from the first condenser enters a first evaporator to cool the gas, and enters a first compressor through the first evaporator; the first evaporator is communicated with the first condenser through a third pipeline; and a first expansion valve disposed on the third pipeline.

Further, the heating assembly further comprises: the heating structure is arranged on one side of the first condenser close to the air inlet; wherein, the heating structure is a steam heating coil or a hot water heating coil.

Further, the cooling subassembly still includes the second evaporimeter, and drying equipment still includes second heat exchange assembly, and second heat exchange assembly includes: a second compressor; the second condenser is positioned between the second solution component and the heating component, and the refrigerant compressed by the second compressor enters the second condenser to heat gas; the refrigerant discharged from the second condenser enters a second evaporator to cool the gas, and enters a second compressor through the second evaporator; the second evaporator is communicated with the second condenser through a fourth pipeline; and the second expansion valve is arranged on the fourth pipeline.

Further, the drying apparatus further includes: the first fan is used for sucking the gas at the air return opening to the air inlet, and the first fan is positioned on one side of the heating assembly close to the air inlet; and the second fan is positioned between the second condenser and the heating assembly.

Further, the drying device includes: a drying body having a drying chamber; one end of the main return air duct extends into the drying body, and the other end of the main return air duct is provided with a return air inlet; one end of the branch return air duct is communicated with the main return air duct, and the other end of the branch return air duct extends to a position between the heating assembly and the second solution assembly.

Further, the drying apparatus further includes: and one end of the fifth pipeline is connected with the bottom of the first storage structure, and the other end of the fifth pipeline is connected with the bottom of the second storage structure.

Use the technical scheme of the utility model, when needs carry out the drying to the casing, put into dry chamber with the casing, gaseous through the air intake get into dry chamber to carry out the drying to the casing. Like this, the gaseous first solution subassembly of the air return flow direction of air-return inlet flow direction after accomplishing the drying to the casing, and the moisture that the gas absorption is located in the salt solution in the first filler to increase gaseous moisture content, reduced dry bulb temperature, the corresponding rising of dew point temperature is convenient for follow-up freezing dehumidification to gas, has reduced the use amount of cold volume, and then has solved the great problem of drying equipment's among the prior art energy consumption. Simultaneously, the concentration of the salt solution in the first filler is increased, and the salt solution is regenerated. And then, the gas passes through the cooling assembly, the cooling assembly cools and cools the gas to condense the moisture in the gas into condensed water to be discharged, the gas flows through the second solution assembly again, and the salt solution in the second filler absorbs the moisture in the gas to further dehumidify the gas. At the same time, the concentration of the salt solution in the second filler is reduced and the salt solution is diluted. And finally, the gas passes through the heating assembly and then enters the air inlet to dry the casing again, so that the circular flow of the gas is realized.

Compared with the drying mode in the prior art, the drying equipment in the application reduces the usage amount of cold energy and reduces energy consumption. Meanwhile, the drying equipment is not influenced by outdoor fresh air parameters, can be used in any season, and improves the use stability of the drying equipment.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a drying apparatus according to the invention.

Wherein the figures include the following reference numerals:

10. a drying device; 11. an air inlet; 12. a drying chamber; 13. an air return opening; 14. drying the body; 15. a main return air duct; 16. a return air duct is arranged; 20. a first solution component; 21. a first filler; 22. a first liquid distributor; 23. a first storage structure; 24. a first pump body structure; 30. a cooling assembly; 31. a first cooling structure; 32. a second evaporator; 33. a first evaporator; 40. a second solution component; 43. a second storage structure; 44. a second pump body structure; 50. a heating assembly; 51. a first condenser; 52. a heating structure; 60. a first fan; 70. a cold energy recovery device; 80. a first pipeline; 90. a second pipeline; 100. a recovery device; 110. a second compressor; 120. a second condenser; 130. a fourth pipeline; 140. a second expansion valve; 150. a first compressor; 160. a third pipeline; 170. a first expansion valve; 180. a fifth pipeline; 190. a second fan; 200. an air inlet duct; 300. casing for sausages; 400. and a third pump body structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In order to solve the great problem of drying equipment's energy consumption among the prior art, this application provides a drying equipment.

As shown in fig. 1, the drying apparatus includes a drying device 10, a first solution component 20, a temperature reduction component 30, a second solution component 40, and a heating component 50. The drying device 10 has an air inlet 11, a drying chamber 12 and an air return opening 13, wherein the drying chamber 12 is communicated with both the air inlet 11 and the air return opening 13. The first solution assembly 20 is communicated with the air return opening 13, the first solution assembly 20 comprises a first filling material 21 and a first liquid distributor 22, the first liquid distributor 22 is used for spraying a salt solution to the first filling material 21, and the gas discharged from the air return opening 13 absorbs the moisture in the salt solution. The temperature reducing assembly 30 is located on the side of the first solution assembly 20 away from the air return opening 13. The second solution assembly 40 is located on one side of the cooling assembly 30 far away from the air return opening 13, the second solution assembly 40 comprises a second filler and a second liquid distributor, the second liquid distributor is used for spraying a salt solution to the second filler, and the salt solution located in the second filler absorbs moisture in the gas passing through the second filler. The heating assembly 50 is located on a side of the second solution assembly 40 near the air inlet 11.

By applying the technical scheme of the embodiment, when the sausage casing 300 needs to be dried, the sausage casing 300 is placed into the drying cavity 12, and air enters the drying cavity 12 through the air inlet 11 to dry the sausage casing 300. Thus, the gas after drying the casing 300 flows to the first solution component 20 through the air return opening 13, the gas absorbs the moisture in the salt solution in the first filler 21 to increase the moisture content of the gas, reduce the temperature of the dry bulb, correspondingly raise the dew point temperature, facilitate subsequent freezing and dehumidifying of the gas, reduce the usage amount of cold energy, and further solve the problem of large energy consumption of drying equipment in the prior art. At the same time, the concentration of the salt solution in the first filler 21 increases and the salt solution is regenerated. Then, the gas passes through the temperature reduction assembly 30, the temperature reduction assembly 30 cools and reduces the temperature of the gas, so that moisture in the gas is condensed into condensed water to be discharged, the gas flows through the second solution assembly 40 again, and the salt solution in the second filler absorbs the moisture in the gas, so that the gas is further dehumidified. At the same time, the concentration of the salt solution in the second filler is reduced and the salt solution is diluted. Finally, the air passes through the heating assembly 50 and enters the air inlet 11, and the sausage casing 300 is dried again, so that the circular flow of the air is realized.

Compared with the drying mode in the prior art, the drying equipment in the embodiment reduces the usage amount of cold energy and reduces energy consumption. Meanwhile, the drying equipment is not influenced by outdoor fresh air parameters, can be used in any season, and improves the use stability of the drying equipment. Meanwhile, the first solution component 20 is utilized to improve the moisture content of the gas, reduce the temperature of the dry bulb, improve the dew point temperature, facilitate subsequent freezing and dehumidification, improve the proportion of cold energy for dehumidification, further reduce the total refrigerating capacity requirement and reduce the power consumption of the compressor.

As shown in fig. 1, the cooling assembly 30 includes a first cooling structure 31, and the drying apparatus further includes a cold recovering device 70. Wherein, the cold recovering device 70 is located between the second solution component 40 and the heating component 50, and the cold recovering device 70 is communicated with the first temperature reducing structure 31 for heat exchange of front and back gases. Specifically, the gas discharged from the air return opening 13 is a high-temperature low-humidity gas, and the high-temperature low-humidity gas absorbs moisture in the salt solution after flowing through the first solution assembly 20, so that the high-temperature low-humidity gas is subjected to isenthalpic humidification. Then, the high-temperature gas passes through the first cooling structure 31, the secondary refrigerant in the first cooling structure 31 primarily cools the gas, the gas enters the second evaporator 32 and the first evaporator 33 and then enters the second solution assembly 40, and the second filler performs isenthalpic dehumidification on the gas. Then, the gas having a low temperature flows through the cold recovery device 70, and the coolant in the cold recovery device 70 absorbs the cold in the gas to heat the gas. Thus, the refrigerating capacity of the compressor for temperature reduction can be reduced by the heat recovery of the secondary refrigerant.

As shown in fig. 1, a third pump structure 400 is provided between the first cooling structure 31 and the refrigeration recovery device 70, and the third pump structure 400 ensures that the coolant flows between the refrigeration recovery device 70 and the first cooling structure 31 to realize energy recovery.

As shown in fig. 1, the first solution assembly 20 further includes a first storage structure 23 and a first pump body structure 24. Wherein the first storage structure 23 is used for storing saline solution, and the first storage structure 23 is communicated with the bottom of the first packing 21. The first pump structure 24 is in communication with both the first storage structure 23 and the first dispenser 22 for pumping the saline solution in the first storage structure 23 into the first dispenser 22. Thus, the arrangement ensures that the first filler 21 has enough salt solution, so that the high-temperature low-humidity gas can absorb the moisture in the salt solution, the isenthalpic humidification is realized, the dry-bulb temperature is reduced, and the dew point temperature of the gas is increased.

Specifically, the first liquid distributor 22 is communicated with the first storage structure 23, the first pump structure 24 pumps the saline solution in the first storage structure 23 into the first liquid distributor 22, the saline solution sprayed from the first liquid distributor 22 is sprayed to the first filling 21, the gas flowing through the first filling 21 absorbs moisture in the saline solution, the concentration of the saline solution in the first storage structure 23 is increased, and the saline solution discharged from the bottom of the first filling 21 enters the first storage structure 23 again, so that the saline solution is recycled.

As shown in fig. 1, the second solution assembly 40 further includes a second storage structure 43 and a second pump body structure 44. Wherein the second storage structure 43 is used for storing the salt solution, and the second storage structure 43 is communicated with the bottom of the second filling material. The second pump body structure 44 is in communication with both the second storage structure 43 and the second sparger for pumping the saline solution in the second storage structure 43 into the second sparger. Thus, the arrangement ensures that the second filler has sufficient salt solution, so that the salt solution can absorb moisture in the low-temperature gas, the isenthalpic dehumidification is realized, and the moisture content of the gas is further reduced.

Specifically, the second liquid distributor is communicated with the second storage structure 43, the second pump body structure 44 pumps the salt solution in the second storage structure 43 into the second liquid distributor, the salt solution sprayed from the second liquid distributor is sprayed to the second filling material, the salt solution in the second filling material absorbs moisture in the gas flowing through the second filling material, the concentration of the salt solution in the second storage structure 43 is reduced, and the salt solution discharged from the bottom of the second filling material enters the second storage structure 43 again, so that the salt solution is recycled.

As shown in fig. 1, the drying apparatus further includes a first pipeline 80, a second pipeline 90, and a recovery device 100. Wherein the first liquid outlet of the first storage structure 23 is communicated with the first liquid inlet of the second storage structure 43 through a first pipeline 80. The second liquid outlet of the second storage structure 43 is communicated with the second liquid inlet of the first storage structure 23 through a second pipeline 90. Recovery means are provided on the first and second conduits 80, 90 for recovering heat and cold, the recovery means being a liquid-liquid heat exchanger. Thus, the above arrangement allows the saline solutions in the first and second storage structures 23 and 43 to flow through each other to prevent the saline solution in the first storage structure 23 from having too high a concentration and the saline solution in the second storage structure 43 from having too low a concentration, so as to maintain the saline solution concentrations in the first and second storage structures 23 and 43. Meanwhile, the recovery apparatus 100 can perform energy recovery on the high-temperature concentrated solution and the low-temperature dilute solution to reduce heat loss caused by solution exchange.

Specifically, because the gas discharged from the air return opening is high-temperature low-humidity gas, the high-temperature low-humidity gas is suitable for salt solution regeneration in the process of passing through the first filler 21, the regenerated salt solution enters the first liquid distributor 22 under the pumping of the first pump body structure 24, the first liquid distributor 22 sprays the regenerated salt solution to the first filler 21, the salt solution returns to the first storage structure 23 after isenthalpic regeneration, and the temperature of the salt solution in the first storage structure 23 is higher. The salt solution in the second storage structure 43 enters a second liquid distributor under the pumping of the second pump structure 44, the second liquid distributor sprays the salt solution to the second filler, the salt solution in the second filler performs isenthalpic dehumidification on the gas passing through the salt solution in the second filler and then flows back to the second storage structure 43, and the temperature of the salt solution in the second storage structure 43 is low. The above arrangement of the recovery apparatus 100 can reduce heat loss due to the exchange of the high and low temperature solutions.

As shown in fig. 1, the temperature reducing assembly 30 further includes a first evaporator 33, the heating assembly 50 includes a first condenser 51, and the drying apparatus further includes a first heat exchange assembly including a first compressor 150, a third pipeline 160, and a first expansion valve 170. Wherein, the refrigerant compressed by the first compressor 150 enters the first condenser 51 to heat the gas; the refrigerant discharged from the first condenser 51 is introduced into the first evaporator 33 to lower the temperature of the gas, and is introduced into the first compressor 150 through the first evaporator 33. The first evaporator 33 communicates with the first condenser 51 through a third line 160. A first expansion valve 170 is disposed on the third line 160. Thus, the above arrangement increases the COP value of the first compressor 150 after the first compressor 150 is started, improving the operation efficiency of the first compressor 150.

Specifically, after the first heat exchange assembly is started, the first condenser 51 releases heat for heating the gas passing through the first condenser, and the first evaporator 33 absorbs heat for cooling the gas passing through the first evaporator to condense moisture in the gas, so that the subsequent second solution assembly 40 can further dehumidify the gas.

As shown in fig. 1, the temperature decreasing assembly 30 further includes a second evaporator 32, and the drying apparatus further includes a second heat exchange assembly, where the second heat exchange assembly includes a second compressor 110, a second condenser 120, a fourth pipeline 130 and a second expansion valve 140. The refrigerant compressed by the second compressor 110 enters the second condenser 120 between the second solution module 40 and the heating module 50 to heat the gas. The refrigerant discharged from the second condenser 120 is throttled and introduced into the second evaporator 32 to cool the gas, and introduced into the second compressor 110 through the second evaporator 32. The second evaporator 32 communicates with the second condenser 120 through a fourth line 130. The second expansion valve 140 is provided on the fourth pipe 130.

Specifically, after the second heat exchange assembly is started, the second condenser 120 releases heat for heating the gas passing through it, and the second evaporator 32 absorbs heat for cooling the gas passing through it, so that moisture in the gas is condensed, and the subsequent second solution assembly 40 is convenient for dehumidifying the gas.

In this embodiment, the cooling assembly 30 includes the first cooling structure 31, the first evaporator 33 and the second evaporator 32 that set gradually to realize the gradient cooling of the cooling assembly 30 to gas, be favorable to improving the evaporation temperature of the preceding stage, improve the COP value of the first compressor 150 and the second compressor 110, reduce the power consumption of the cooling assembly 30. In this way, the first evaporator 33 and the second evaporator 32 are used for cooling the gas, and the first condenser 51 and the second condenser 120 are used for heating the gas, so that the working efficiency of the first compressor 150 and the second compressor 110 is improved, and the power consumption of the compressors is saved.

As shown in fig. 1, the drying apparatus further comprises a first fan 60 and a second fan 190. The first fan 60 is used for sucking the air at the air return opening 13 to the air inlet 11, and the first fan 60 is located at one side of the heating assembly 50 close to the air inlet 11. The second fan 190 is located between the second condenser 120 and the heating assembly 50. Wherein, the second fan 190 is used for blowing hot air to heat the gas. First fan 60 is arranged in with gas suction to air intake 11, ensures that the gas flow in the drying equipment is more unobstructed, has promoted drying equipment's drying efficiency and operational reliability.

As shown in fig. 1, the heating assembly 50 also includes a heating structure 52. Wherein, the heating structure 52 is disposed at a side of the first condenser 51 near the air inlet 11. Optionally, the heating structure 52 is a steam coil or a hot water coil. In this way, the heating structure 52 is used for heating the dehumidified gas, and after the gas is heated to a preset temperature, the first fan 60 sends the gas into the air inlet 11 to dry the casing 300.

As shown in fig. 1, the drying device 10 includes a drying body 14, a main return air duct 15, and a sub-return air duct 16. Wherein the drying body 14 has a drying chamber 12. One end of the main return air duct 15 extends into the drying body 14, and the other end of the main return air duct 15 is provided with a return air inlet 13. One end of the branch return air duct 16 communicates with the main return air duct 15, and the other end of the branch return air duct 16 extends between the heating unit 50 and the second solution unit 40. Thus, the high-temperature low-humidity gas discharged from the main return air duct 15 sequentially passes through the first solution component 20, the cooling component 30, the second solution component 40, the cold energy recovery device 70, the second condenser 120, the second fan 190 and the heating component 50, the gas discharged from the branch return air duct 16 is mixed with the gas in the main return air duct 15 between the heating component 50 and the second solution component 40, and after the mixing is completed, the mixed gas enters the air inlet 11 under the suction action of the first fan 60 so as to dry the casing 300 again.

As shown in fig. 1, the drying apparatus further includes a fifth pipe 180. Wherein one end of the fifth pipe 180 is connected to the bottom of the first storage structure 23, and the other end of the fifth pipe 180 is connected to the bottom of the second storage structure 43. Thus, the above arrangement of the fifth pipeline 180 enables the liquid level heights of the saline solutions in the first storage structure 23 and the second storage structure 43 to be consistent, so that the staff can monitor and control the amounts of the saline solutions in the first storage structure 23 and the second storage structure 43 conveniently, and the phenomenon that the flow imbalance in the first storage structure 23 and the second storage structure 43 causes liquid shortage or overflow is prevented.

As shown in fig. 1, the drying apparatus further includes an intake duct 200. Wherein, one end of the air inlet duct 200 is provided with an air inlet 11, and the other end of the air inlet duct 200 extends into the drying body 14.

Specifically, the working principle of the drying apparatus is as follows:

the high-temperature low-humidity gas discharged from the drying cavity 12 enters the main return air duct 15 and the branch return air duct 16 respectively, the high-temperature low-humidity gas discharged from the main return air duct 15 enters the first solution component 20 firstly, the salt solution is subjected to isenthalpic regeneration, the moisture in the salt solution is absorbed, the high-temperature low-humidity gas is subjected to isenthalpic humidification, the relative humidity is increased, and the dew point temperature is increased. Then the temperature is primarily reduced through the first temperature reducing structure 31, and then the temperature is reduced and the humidity is removed through the first evaporator 33 and the second evaporator 32 in sequence. Thereafter, the gas with a relative humidity close to 100% enters the second solution module 40 to be dehumidified in an isenthalpic manner, and the salt solution in the second packing is diluted. After the second filler completes the dehumidification process of the gas, the gas passes through the cold energy recovery device 70 and the second condenser 120 in sequence, and the second condenser 120 heats the gas. The gas passing through the second condenser 120 is mixed with the gas discharged from the branch return air duct 16, and then sequentially passes through the first condenser 51 and the heating structure 52, the gas is heated to a preset temperature, then is sent into the air inlet 11 through the first fan 60, finally enters the drying cavity 12 to dry the sausage casing 300, and is dehumidified and heated again through the return air inlet 13 after moisture absorption.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

when the sausage casing needs to be dried, the sausage casing is placed into the drying cavity, and air enters the drying cavity through the air inlet so as to dry the sausage casing. Like this, the gas after accomplishing the drying to the casing passes through the return air inlet, divide into two, and one flows to first solution subassembly, and the moisture that is located the salt solution in the first filler is absorbed to gas to increase gaseous moisture content, reduced the dry bulb temperature, the corresponding rising of dew point temperature is convenient for follow-up cooling dehumidification to gas, has reduced the use amount of cold volume, and then has solved the great problem of drying equipment's among the prior art energy consumption. And then, the gas passes through the cooling assembly, the cooling assembly cools and cools the gas to condense the moisture in the gas into condensed water to be discharged, the gas flows through the second solution assembly again, and the salt solution in the second filler absorbs the moisture in the gas to further dehumidify the gas. Finally, the first branch gas passes through the cold energy recovery device 70 and the second condenser 120 to be heated, then is mixed with the second branch gas, enters the heating assembly 50 to be heated, finally enters the air inlet to dry the sausage casing again, and the circular flow of the gas is realized.

Compared with the drying mode in the prior art, the drying equipment in the application reduces the usage amount of cold energy and reduces energy consumption. Meanwhile, the use of the drying equipment is not affected by seasons, and the drying equipment can be used in any season, so that the use stability of the drying equipment is improved.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. Drying apparatus, characterized in that it comprises:

the drying device (10) is provided with an air inlet (11), a drying cavity (12) and an air return opening (13), and the drying cavity (12) is communicated with the air inlet (11) and the air return opening (13);

a first solution assembly (20) communicated with the air return opening (13), wherein the first solution assembly (20) comprises a first filler (21) and a first liquid distributor (22), the first liquid distributor (22) is used for spraying a salt solution to the first filler (21), and gas exhausted from the air return opening (13) absorbs moisture in the salt solution;

the temperature reduction assembly (30) is positioned on one side, away from the air return opening (13), of the first solution assembly (20);

the second solution assembly (40) is positioned on one side, away from the air return opening (13), of the temperature reduction assembly (30), the second solution assembly (40) comprises a second filler and a second liquid distributor, the second liquid distributor is used for spraying a salt solution to the second filler, and the salt solution positioned in the second filler absorbs moisture in the gas passing through the second filler;

and the heating assembly (50) is positioned on one side of the second solution assembly (40) close to the air inlet (11).

2. Drying apparatus according to claim 1, wherein the temperature reducing assembly (30) comprises a first temperature reducing structure (31), the drying apparatus further comprising:

and the cold energy recovery device (70) is positioned between the second solution component (40) and the heating component (50), and the cold energy recovery device (70) is communicated with the first cooling structure (31) and is used for exchanging heat with the first cooling structure (31).

3. The drying apparatus according to claim 1, wherein the first solution assembly (20) further comprises:

a first storage structure (23) for storing a salt solution, the first storage structure (23) being in communication with the bottom of the first fill (21);

a first pump body structure (24), the first pump body structure (24) being in communication with both the first storage structure (23) and the first liquid distributor (22) for pumping the saline solution in the first storage structure (23) into the first liquid distributor (22).

4. The drying apparatus according to claim 3, wherein the second solution assembly (40) further comprises:

a second storage structure (43) for storing a salt solution, the second storage structure (43) being in communication with the bottom of the second fill;

a second pump body structure (44), the second pump body structure (44) being in communication with both the second storage structure (43) and the second dispenser for pumping the saline solution in the second storage structure (43) into the second dispenser.

5. The drying apparatus according to claim 4, further comprising:

a first conduit (80), through which a first outlet of the first storage structure (23) communicates with a first inlet of the second storage structure (43);

a second line (90) through which a second liquid outlet of the second storage structure (43) communicates with a second liquid inlet of the first storage structure (23);

-a recovery device (100) arranged on the first (80) and second (90) lines for recovering heat and cold.

6. Drying apparatus according to claim 1, wherein the desuperheating assembly (30) further comprises a first evaporator (33), the heating assembly (50) comprises a first condenser (51), the drying apparatus further comprises a first heat exchange assembly comprising:

a first compressor (150), wherein the refrigerant compressed by the first compressor (150) enters the first condenser (51) to heat the gas; the refrigerant discharged from the first condenser (51) enters the first evaporator (33) to cool the gas, and enters the first compressor (150) through the first evaporator (33);

a third line (160), through which the first evaporator (33) communicates with the first condenser (51);

a first expansion valve (170) disposed on the third conduit (160).

7. Drying apparatus according to claim 6, wherein the heating assembly (50) further comprises:

the heating structure (52) is arranged on one side, close to the air inlet (11), of the first condenser (51); wherein the heating structure (52) is a steam heating coil or a hot water heating coil.

8. Drying apparatus according to claim 1, wherein the desuperheating assembly (30) further comprises a second evaporator (32), the drying apparatus further comprising a second heat exchange assembly comprising:

a second compressor (110);

a second condenser (120) located between the second solution assembly (40) and the heating assembly (50), wherein the refrigerant compressed by the second compressor (110) enters the second condenser (120) to heat the gas; the refrigerant discharged from the second condenser (120) enters the second evaporator (32) to cool the gas, and enters the second compressor (110) through the second evaporator (32);

a fourth line (130), through which the second evaporator (32) communicates with the second condenser (120);

a second expansion valve (140) disposed on the fourth conduit (130).

9. The drying apparatus according to claim 8, further comprising:

a first fan (60), wherein the first fan (60) is used for sucking the gas at the air return opening (13) to the air inlet opening (11), and the first fan (60) is positioned on one side of the heating assembly (50) close to the air inlet opening (11);

a second fan (190), the second fan (190) being located between the second condenser (120) and the heating assembly (50).

10. Drying apparatus according to claim 1, characterized in that said drying means (10) comprise:

a drying body (14) having the drying chamber (12);

one end of the main return air duct (15) extends into the drying body (14), and the other end of the main return air duct (15) is provided with the return air inlet (13);

one end of the branch return air duct (16) is communicated with the main return air duct (15), and the other end of the branch return air duct (16) extends to a position between the heating component (50) and the second solution component (40).

11. The drying apparatus according to claim 4, further comprising:

a fifth pipeline (180), one end of the fifth pipeline (180) is connected with the bottom of the first storage structure (23), and the other end of the fifth pipeline (180) is connected with the bottom of the second storage structure (43).

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