Drying, dehumidifying and heat recovering unit for thin-strip food

Abstract

The utility model discloses a drying dehumidification heat recovery unit for thin-strip food, which comprises a condenser, a condenser fan is arranged in the condenser, a dehumidification evaporator is arranged on the right side of the condenser fan, a host controller is arranged on the right side of the condenser, and a heat exchanger is arranged on the host controller. According to the drying, dehumidifying and heat recovering unit for the thin-strip food, the liquid outlet pipe is arranged in the liquid storage tank, the rubber sleeve is arranged outside the liquid outlet pipe, the placing groove is formed in the inner wall of the rubber sleeve, the sealing ring is arranged in the placing groove, and the outer diameter of the liquid outlet pipe corresponds to the inner diameter of the rubber sleeve; through the arrangement of a rubber sleeve and a sealing ring, the sealing performance of the liquid storage tank can be improved, refrigerant liquid in the liquid storage tank is prevented from leaking from the connecting position of the liquid storage tank and the liquid outlet pipe, and therefore the drying and dehumidifying heat recovery unit for the thin-strip food can work better; and therefore, the use performance of the drying and dehumidifying heat recovery unit for the thin-strip food is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to food drying, and in particular relates to a dehumidification heat recovery unit for drying thin strips of food. Background Art

[0002] China is the birthplace of fine noodle technology, with a history of more than 2,000 years. In history, fine noodles were mostly produced by hand and dried in the sun, with low yield and poor quality. It was not until the 1920s that mechanized production was adopted. Fine noodles are noodles made from wheat flour with salt, alkali and water, which are cut into dry noodles of a certain length after hanging and drying. Fine noodle drying is the most important part of fine noodle production. If the drying room is not well controlled, it is easy to produce fine noodles with crisp strips or sourness, resulting in unqualified fine noodles. Therefore, it is very important to choose a reasonable fine noodle drying process and heat source control method. At present, fine noodle drying rooms can be divided into low-temperature drying rooms, medium-temperature drying rooms and high-temperature drying rooms according to the drying temperature. High-temperature drying rooms are difficult to control, so low-temperature drying rooms and medium-temperature drying rooms are the most common. According to the structure of the drying room, it can be divided into cableway drying rooms and tunnel drying rooms. At present, the heat source methods for fine noodle drying mainly come from the following: natural gas boilers, coal-fired boilers, wood boilers, oil boilers, and electric boilers. The heat transfer methods in the drying room include hot air pipe heat dissipation, heat transfer oil pipe heat dissipation, and hot water pipe heat dissipation. The energy consumption of electric boilers is the highest, and the operating cost is generally 2-4 times that of other heat sources, so they are rarely used. Oil-fired boilers and wood-fired boilers are also relatively less used due to the high cost of oil and the raw material problem of firewood. Due to the relatively low unit price of coal, more than 90% of the heat sources for drying noodles are coal-fired boilers, and a small number of them are natural gas boilers. How to improve the quality of noodles while saving energy costs during the drying process has always been a difficult problem in the noodle industry. The use of traditional gas-fired, coal-fired and other combustion-type heat sources has gradually exposed various deficiencies: 1. Obtaining heat sources by burning coal, gas, and firewood consumes a large amount of primary energy, the effective utilization of energy is low, a large part of the heat energy is wasted, and greenhouse gases such as CO2 are produced, which is the culprit of the greenhouse effect, and the production of nitrogen and sulfide causes haze, acid rain and other disasters. 2. Traditional heating equipment such as coal-fired boilers, gas boilers, and electric boilers have strict use requirements, and boiler equipment needs annual inspection every year. In addition, the service life of the equipment is relatively short. Generally, it is replaced every 3-6 years, resulting in repeated investment in equipment. 3. The heat source generated by coal burning, gas burning, burning wood, etc. is input into the drying room for use after secondary heat exchange through heat transfer oil or circulating water. The stability of the drying room temperature comes from the stability of the heat source. The heat source of coal burning and burning wood is greatly affected by the speed of fuel combustion. The temperature fluctuation of the heat source directly increases the difficulty of temperature and humidity control in the drying room. The temperature difference is large during the drying process, and the quality stability of noodle drying is poor. Noodle drying is prone to produce unqualified products such as crispy strips and sour noodles. At the same time, the labor intensity of operators is quite high. 4. Dehumidification is required during the drying process of noodles. The traditional dehumidification method is to directly discharge the hot and humid air in the drying room to the outside through the dehumidification fan, resulting in a large amount of heat loss and increasing the energy consumption required for noodle drying. 5. During the drying process, the endless consumption of primary energy leads to excessive exploitation of resources. In some places, under the condition of tight coal resources, deforestation causes landslides, which has a major impact on people's production and life.Traditional coal-fired, wood-burning and other drying equipment are not in line with the country's sustainable development policies during the drying process and need to be replaced by reliable energy-saving products.

[0003] The existing technology of drying and dehumidifying heat recovery units for thin strip foods has the following problems: the existing technology of drying and dehumidifying heat recovery units for thin strip foods does not have good sealing performance at the connection between the liquid storage tank and the liquid outlet tank, which may cause the refrigerant liquid inside the liquid storage tank to leak from the connection between the liquid storage tank and the liquid outlet tank. Utility Model Content

[0004] The purpose of the utility model is to provide a drying and dehumidifying heat recovery unit for thin strip foods, so as to solve the problem in the above-mentioned background technology that the existing drying and dehumidifying heat recovery unit for thin strip foods is not very good at sealing the connection between the liquid storage tank and the liquid outlet tank during use, which may cause the refrigerant liquid inside the liquid storage tank to leak from the connection between the liquid storage tank and the liquid outlet tank.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin strip food drying and dehumidification heat recovery unit, comprising a condenser, a condenser fan is arranged inside the condenser, a dehumidification evaporator is arranged on the right side of the condenser fan, a host controller is arranged on the right side of the condenser, a compressor is arranged on the right side of the host controller, a copper pipe is arranged above the compressor, a solenoid valve G is arranged below the compressor, a solenoid valve F is arranged below the solenoid valve G, a thermal expansion valve is arranged below the solenoid valve F, a solenoid valve A is arranged below the thermal expansion valve, a filter is arranged on the left side of the thermal expansion valve, a liquid storage tank is arranged on the left side of the filter, a four-way valve is arranged on the right side of the compressor, and a solenoid valve F is arranged below the solenoid valve G. A thermal expansion valve is arranged below the solenoid valve F, a thermal expansion valve A is arranged below the thermal expansion valve, a filter is arranged on the left side of the thermal expansion valve, a liquid storage tank is arranged on the left side of the filter, a four-way valve is arranged on the right side of the compressor, and a four-way valve is arranged below the four-way valve. A separator is arranged on the right side of the four-way valve, a heat exchanger is arranged on the right side of the four-way valve, a fresh air fan is arranged on the top of the heat exchanger, a hot air dehumidification port is arranged on the left side of the heat exchanger, a fresh air inlet is arranged below the heat exchanger, a dehumidification fan is arranged on the right side of the heat exchanger, an evaporator is arranged on the right side of the dehumidification fan, an evaporator fan is arranged inside the evaporator, a coil is arranged on the right side of the evaporator, a solenoid valve E is arranged below the evaporator, a solenoid valve D is arranged on the right side of the solenoid valve E, a solenoid valve C is arranged below the solenoid valve D, a sheet metal evaporator is arranged on the right side of the solenoid valve C, a gate valve D is arranged on the right side of the sheet metal evaporator, a gate valve A is arranged below the gate valve D, and a solenoid valve C is arranged below the solenoid valve C. A solenoid valve B is arranged on the right side of the solenoid valve B, a circulating water pump is arranged on the right side of the solenoid valve B, a water pipe is arranged under the coil, a gate valve C is arranged under the water pipe, a gate valve B is arranged under the gate valve C, and a buried pipe heat exchanger is arranged under the gate valve B. A heat exchanger is arranged on the evaporator of the evaporative heat exchange module, and a fresh air inlet pipe, a hot air dehumidification outlet pipe and an ambient air inlet pipe are respectively arranged on the heat exchanger. The buried pipe water evaporation module is provided with a refrigerant inlet and outlet on one side of the sheet metal evaporator, and the other side of the sheet metal evaporator is connected to the buried pipe heat exchanger through a circulating water pump. The refrigerant outlet of the compressor in the compression heating and dehumidification module is connected to the four-way valve, and the refrigerant reflux port of the four-way valve is connected to the compressor through a separator. The refrigerant outlet of the four-way valve is connected to the inlet of the condenser, and the refrigerant outlet of the condenser is connected to the filter and the thermal expansion valve through the liquid storage tank. The outlet of the thermal expansion valve is respectively connected to the evaporative heat exchange module, the buried pipe water evaporation module, and the dehumidification evaporator inlet. The dehumidification evaporator is arranged on one side of the condenser working gas entrance of the compression heating and dehumidification module. A liquid outlet pipe is arranged inside the liquid storage tank, and a rubber sleeve is arranged outside the liquid outlet pipe. A placement groove is arranged on the inner wall of the rubber sleeve, and a sealing ring is arranged inside the placement groove. The outer diameter of the liquid outlet pipe corresponds to the inner diameter of the rubber sleeve. The rubber sleeve is connected to the liquid outlet pipe by a socket connection. The rubber sleeve is a hollow annular structure, and the rubber sleeve is made of rubber material.The inner width of the placement groove corresponds to the outer width of the sealing ring, and the placement groove and the sealing ring are connected by a snap-fitting manner.

[0006] Preferably, a heat exchanger is arranged on the evaporator of the evaporative heat exchange module, and a fresh air inlet duct, a hot air dehumidification outlet duct, and an ambient air inlet duct are respectively arranged on the heat exchanger.

[0007] Preferably, the underground pipe water evaporation module is provided with a refrigerant inlet and an outlet on one side of the sheet metal evaporator, and the other side of the sheet metal evaporator is connected to the underground pipe heat exchanger via a circulating water pump.

[0008] Preferably, the refrigerant outlet of the compressor in the compression heating and dehumidification module is connected to a four-way valve, the refrigerant reflux port of the four-way valve is connected to the compressor through a separator, the refrigerant outlet of the four-way valve is connected to the inlet of the condenser, the refrigerant outlet of the condenser is connected to the filter and the thermal expansion valve through a liquid storage tank, the outlet of the thermal expansion valve is respectively connected to the evaporative heat exchange module, the buried pipe water evaporation module, and the inlet of the dehumidification evaporator, and a dehumidification evaporator is arranged on the side where the working gas enters the condenser of the compression heating and dehumidification module.

[0009] Preferably, a liquid outlet pipe is provided inside the liquid storage tank, a rubber sleeve is provided outside the liquid outlet pipe, a placement groove is provided on the inner wall of the rubber sleeve, and a sealing ring is provided inside the placement groove.

[0010] Preferably, the outer diameter of the liquid outlet pipe corresponds to the inner diameter of the rubber sleeve, and the rubber sleeve and the liquid outlet pipe are connected by sleeve connection.

[0011] Preferably, the rubber sleeve is a hollow annular structure and is made of rubber material.

[0012] Preferably, the inner width of the placement groove corresponds to the outer width of the sealing ring, and the placement groove and the sealing ring are connected by a snap-fitting manner.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model improves the drying and dehumidifying heat recovery unit for thin strips of food. A liquid outlet pipe is arranged inside the liquid storage tank, a rubber sleeve is arranged outside the liquid outlet pipe, a placement groove is arranged on the inner wall of the rubber sleeve, a sealing ring is arranged inside the placement groove, the outer diameter of the liquid outlet pipe corresponds to the inner diameter of the rubber sleeve, the rubber sleeve and the liquid outlet pipe are connected by a sleeve connection, the rubber sleeve is a hollow annular structure, the rubber sleeve is made of rubber material, the inner width of the placement groove corresponds to the outer width of the sealing ring, the placement groove and the sealing ring are connected by a clamping connection When using the thin strip food drying dehumidification heat recovery unit, first insert the sealing ring into the placement groove, then put the rubber sleeve on the connection between the liquid outlet pipe and the liquid storage tank, and then install the liquid storage tank inside the thin strip food drying dehumidification heat recovery unit. By setting the rubber sleeve and the sealing ring, the sealing performance of the liquid storage tank can be improved, and the refrigerant liquid inside the liquid storage tank can be prevented from leaking from the connection between the liquid storage tank and the liquid outlet pipe, so that the thin strip food drying dehumidification heat recovery unit can work better, thereby improving the performance of the thin strip food drying dehumidification heat recovery unit.

[0015] 2. The utility model improves the heat recovery unit for drying and dehumidifying thin strip foods, wherein a four-way valve is arranged on the right side of the compressor, a separator is arranged below the four-way valve, a heat exchanger is arranged on the right side of the four-way valve, a fresh air fan is arranged above the heat exchanger, a hot air dehumidification port is arranged on the left side of the heat exchanger, a fresh air inlet is arranged below the heat exchanger, a dehumidification fan is arranged on the right side of the heat exchanger, an evaporator is arranged on the right side of the dehumidification fan, an evaporator fan is arranged inside the evaporator, a refrigerant outlet of the compressor in the compression heating and dehumidification module is connected to the four-way valve, a refrigerant reflux port of the four-way valve is connected to the compressor through a separator, a refrigerant outlet of the four-way valve is connected to an inlet of a condenser, a refrigerant outlet of the condenser is connected to a filter and a thermal expansion valve through a liquid storage tank, and an outlet of the thermal expansion valve is respectively connected to an evaporation heat exchange module, an underground pipe water evaporation module, and a dehumidification evaporator inlet, a dehumidification evaporator is arranged on one side where the working gas of the condenser of the compression heating and dehumidification module enters, and when drying and dehumidifying thin strip foods, When the heat recovery unit is used, it operates fully automatically based on the set temperature and humidity target values ​​detected in the noodle drying room, and the temperature and humidity are independently controlled systems. When the temperature in the drying room is lower than the set value, the main machine starts running, and when the set temperature is reached, the main machine stops running. When the humidity in the drying room exceeds the set value, the dehumidification fan automatically opens; when the humidity in the drying room is less than or equal to the set value, the dehumidification fan closes. At the same time, the noodles are dried under relatively precise and stable temperature and humidity drying conditions with good drying quality. In order to ensure the operating stability of the equipment, a manual control function is added. Through the setting of the host controller, when using the thin strip food drying dehumidification heat recovery unit, the thin strip food drying dehumidification heat recovery unit can be automatically controlled without manual operation, so that the noodles are dried under relatively precise and stable temperature and humidity drying conditions with good drying quality. In addition, the thin strip food drying dehumidification heat recovery unit does not emit any harmful substances such as waste gas and waste residue, and is an energy-saving and environmentally friendly product advocated by the state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model of a drying, dehumidifying and heat recovery unit for thin strips of food;

[0017] Figure 2 It is a schematic diagram of the enlarged structure of the liquid storage tank of the utility model of the drying, dehumidification and heat recovery unit for thin strips of food;

[0018] Figure 3 This is a schematic diagram of the structure of the rubber sleeve and the sealing ring of the utility model of the drying, dehumidification and heat recovery unit for thin strips of food;

[0019] In the figure: 1. compressor; 2. four-way valve; 3. condenser; 4. condenser fan; 5. liquid storage tank; 6. filter; 7. thermal expansion valve; 8. solenoid valve A; 9. solenoid valve B; 10. plate heat exchanger evaporator; 11. circulating water pump; 12. gate valve A; 13. gate valve B; 14. gate valve C; 15. gate valve D; 16. underground heat exchanger; 17. water pipe; 18. coil; 19. solenoid valve C; 20. solenoid Valve D; 21. Solenoid valve E; 22. Evaporator; 23. Evaporator fan; 24. Separator; 25. Copper tube; 26. Fresh air fan; 27. Dehumidification fan; 28. Heat exchanger; 29. ​​Hot air dehumidification port; 30. Fresh air inlet; 31. Host controller; 32. Dehumidification evaporator; 33. Solenoid valve F; 34. Solenoid valve G; 35. Rubber sleeve; 36. Liquid outlet pipe; 37. Placement groove; 38. Sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3The utility model provides a technical solution: a thin strip food drying and dehumidification heat recovery unit, including a condenser 3, a condenser fan 4 is arranged inside the condenser 3, a dehumidification evaporator 32 is arranged on the right side of the condenser fan 4, a host controller 31 is arranged on the right side of the condenser 3, a compressor 1 is arranged on the right side of the host controller 31, a copper tube 25 is arranged above the compressor 1, a solenoid valve G34 is arranged below the compressor 1, a solenoid valve F33 is arranged below the solenoid valve G34, a thermal expansion valve 7 is arranged below the solenoid valve F33, a solenoid valve A8 is arranged below the thermal expansion valve 7, a filter 6 is arranged on the left side of the thermal expansion valve 7, a liquid storage tank 5 is arranged on the left side of the filter 6, a four-way valve 2 is arranged on the right side of the compressor 1, a separator 24 is arranged below the four-way valve 2, a heat exchanger 28 is arranged on the right side of the four-way valve 2, a fresh air fan 26 is arranged above the heat exchanger 28, and a hot air blower 26 is arranged on the left side of the heat exchanger 28. A dehumidification port 29 is provided, a fresh air inlet 30 is provided below the heat exchanger 28, a dehumidification fan 27 is provided to the right of the heat exchanger 28, an evaporator 22 is provided to the right of the dehumidification fan 27, an evaporator fan 23 is provided inside the evaporator 22, a coil 18 is provided to the right of the evaporator 22, a solenoid valve E21 is provided below the evaporator 22, a solenoid valve D20 is provided to the right of the solenoid valve E21, a solenoid valve C19 is provided below the solenoid valve D20, and a solenoid valve A sheet metal evaporator 10 is arranged on the right side of C19, a gate valve D15 is arranged on the right side of the sheet metal evaporator 10, a gate valve A12 is arranged below the gate valve D15, a solenoid valve B9 is arranged below the solenoid valve C19, a circulating water pump 11 is arranged on the right side of the solenoid valve B9, a water pipe 17 is arranged below the coil 18, a gate valve C14 is arranged below the water pipe 17, a gate valve B13 is arranged below the gate valve C14, and an underground pipe heat exchanger 16 is arranged below the gate valve B13.

[0022] A heat exchanger 28 is arranged on the evaporator 22 of the evaporative heat exchange module, and a fresh air inlet pipe, a hot air dehumidification outlet pipe, and an ambient air inlet pipe are respectively arranged on the heat exchanger 28. A refrigerant inlet and an outlet are arranged on one side of the sheet metal evaporator 10 of the underground pipe water evaporation module, and the other side of the sheet metal evaporator 10 is connected to the underground pipe heat exchanger 16 through a circulating water pump 11. The refrigerant outlet of the compressor 1 in the compression heating and dehumidification module is connected to the four-way valve 2, and the refrigerant reflux port of the four-way valve 2 is connected to the compressor 1 through a separator 24. The refrigerant outlet of the four-way valve 2 is connected to the inlet of the condenser 3, and the refrigerant outlet of the condenser 3 is connected to the filter 6 and the thermal expansion valve 7 through the liquid storage tank 5. The outlet of the thermal expansion valve 7 is respectively connected to the evaporative heat exchange module, the underground pipe water evaporation module, and the dehumidification evaporator inlet. A dehumidification evaporator 32 is arranged on the side where the working gas enters the condenser 3 of the compression heating and dehumidification module.

[0023] During operation, through the setting of the host controller 31, when the thin strip food drying and dehumidification heat recovery unit is used, the thin strip food drying and dehumidification heat recovery unit can be automatically controlled without manual operation, so that the noodles are dried under relatively precise and stable temperature and humidity drying conditions, with good drying quality, and the thin strip food drying and dehumidification heat recovery unit does not emit any harmful substances such as waste gas and waste residue, and is an energy-saving and environmentally friendly product advocated by the state.

[0024] A liquid outlet pipe 36 is provided inside the liquid storage tank 5, and a rubber sleeve 35 is provided outside the liquid outlet pipe 36. A placement groove 37 is provided on the inner wall of the rubber sleeve 35, and a sealing ring 38 is provided inside the placement groove 37. The outer diameter of the liquid outlet pipe 36 corresponds to the inner diameter of the rubber sleeve 35. The rubber sleeve 35 and the liquid outlet pipe 36 are connected by a sleeve connection. The rubber sleeve 35 is a hollow annular structure. The rubber sleeve 35 is made of rubber material. The inner width of the placement groove 37 corresponds to the outer width of the sealing ring 38. The placement groove 37 and the sealing ring 38 are connected by a snap connection.

[0025] During operation, the rubber sleeve 35 and the sealing ring 38 are arranged to improve the sealing performance of the liquid storage tank 5, thereby preventing the refrigerant liquid inside the liquid storage tank 5 from leaking from the connection between the liquid storage tank 5 and the liquid outlet pipe 36, so that the thin strip food drying and dehumidification heat recovery unit can work better, thereby improving the performance of the thin strip food drying and dehumidification heat recovery unit.

[0026] Working principle and use process of the utility model: After the utility model is installed, when using the thin strip food drying and dehumidifying heat recovery unit, first insert the sealing ring 38 into the placement groove 37, then put the rubber sleeve 35 on the connection between the liquid outlet pipe 36 and the liquid storage tank 5, and then install the liquid storage tank 5 inside the thin strip food drying and dehumidifying heat recovery unit. The rubber sleeve 35 and the sealing ring 38 are arranged to improve the sealing performance of the liquid storage tank 5, and prevent the refrigerant liquid inside the liquid storage tank 5 from leaking from the connection between the liquid storage tank 5 and the liquid outlet pipe 36, so that the thin strip food drying and dehumidifying heat recovery unit can be effectively prevented. The wet heat recovery unit can work better, thereby improving the performance of the thin strip food drying and dehumidification heat recovery unit. During operation, the equipment can realize three different operation modes according to the use requirements, namely: air source operation mode, ground source operation mode, and dehumidification operation mode. Air source operation mode: when drying is required, when the outdoor ambient temperature is high, after starting the host, after detection by the host controller 31, the host is operated in the air source operation mode. The operation process of the host system equipment is as follows: after the host controller 31 is powered on, the host is connected to the power supply. Five seconds later, solenoid valve D20 and solenoid valve E21 are powered on and opened simultaneously. Ten seconds later, evaporator fan 23 starts running. Ten seconds later, condenser fan 4 is turned on. Sixty seconds later, compressor 1 starts running. Compressor 1 compresses the closed refrigerant connected to copper tube 25 into a high-temperature and high-pressure gas. The refrigerant temperature can reach up to 125 degrees. The high-temperature and high-pressure gaseous refrigerant passes through four-way valve 2 and flows through condenser 3, and begins to release heat. During the operation of condenser fan 4, it continuously drives the air in the drying room to pass through condenser 3. Since the air in the drying room is at room temperature.The air in the drying room and the high-temperature and high-pressure gaseous refrigerant of 125 degrees in the condenser 3 are heat exchanged under the action of temperature difference. The air temperature in the drying room rises, and the high-temperature and high-pressure refrigerant releases heat in the condenser 3 to form a gas-liquid mixed state. The refrigerant flowing out of the condenser 3 returns to the liquid storage tank 5, and the liquid storage tank 5 stores a small part of the liquid refrigerant. When most of the gaseous refrigerant flows through the filter 6, the impurities in the refrigerant are further cleaned to enhance the stability of the system. The refrigerant is intercepted by the thermal expansion valve 7, and the high-temperature and high-pressure refrigerant is turned into a low-temperature and low-pressure liquid under the action of interception. The lowest temperature of the liquid refrigerant can reach minus 25 degrees. The low-temperature refrigerant passes through the solenoid valve D20. The evaporator fan 23 continuously drives outdoor air to pass through the evaporator 22 during operation. The outdoor air is at room temperature. The outdoor air and the minus twenty-five degree low-temperature refrigerant in the evaporator 22 are exchanged under the action of the temperature difference. After the outdoor air is cooled, it is discharged through the evaporator fan 23. The refrigerant in the evaporator 22 absorbs the heat in the outdoor air and turns into a low-temperature and low-pressure gas-liquid state again. The gas-liquid refrigerant returns to the separator 24 through the four-way valve 2. A small part of the liquid refrigerant is stored in the separator 24, and most of the low-temperature and low-pressure gaseous refrigerant returns to the compressor 1 and is recompressed into a high-temperature and high-pressure gaseous state. This reciprocating cycle reaches the set temperature of the drying room and stops heating. The stopping sequence is as follows: ten seconds after the compressor 1 stops, the evaporator fan 23 stops running. After thirty seconds, you can choose to keep running or stop the condenser fan 4. If you choose to keep running the condenser fan 4, it will not stop. After sixty seconds, close the solenoid valve D20 and the solenoid valve E21. Repeat the above steps to enter the air source operation mode, the ground source operation mode (without recycling cold air): when drying is required, when the outdoor ambient temperature is low, after starting the host, after detection by the host controller 31, operate the host in the ground source operation mode. The operation process of the host system equipment is as follows: open the gate valve A12 and the gate valve B13. After the host controller 31 is powered on, the host is connected to the power supply. Five seconds later, solenoid valve B9 and solenoid valve C19 are energized and opened simultaneously. Ten seconds later, circulating water pump 11 starts running. After another sixty seconds, condenser fan 4 is turned on. After another sixty seconds, compressor 1 starts running. Compressor 1 compresses the closed refrigerant connected to copper tube 25 into a high-temperature and high-pressure gas. The refrigerant temperature can reach up to one hundred and twenty-five degrees. The high-temperature and high-pressure gaseous refrigerant passes through four-way valve 2 and flows through condenser 3, and begins to release heat. During the operation of condenser fan 4, it continuously drives the air in the drying room to pass through condenser 3. Since the air in the drying room is at room temperature.The air in the drying room and the 125-degree high-temperature and high-pressure gaseous refrigerant in the condenser 3 are heat-exchanged by the temperature difference. The air temperature in the drying room rises, and the high-temperature and high-pressure refrigerant releases heat in the condenser 3 to form a gas-liquid mixed state. The refrigerant flowing out of the condenser 3 returns to the liquid storage tank 5, and the liquid storage tank 5 stores a small part of the liquid refrigerant. When most of the gaseous refrigerant flows through the filter 6, the impurities in the refrigerant are further cleaned to enhance the stability of the system. The refrigerant is intercepted by the thermal expansion valve 7, and the high-temperature and high-pressure refrigerant is converted into a low-temperature and low-pressure liquid under the action of the interception. The lowest temperature of the state refrigeration economy can reach minus 25 degrees. The low-temperature refrigeration economy flows through the solenoid valve B9 to the plate exchange evaporator 10. The circulating water pump 11 continuously drives the circulating water in the underground heat exchanger 16 to be drawn from underground and pass through the plate exchange evaporator 10 during operation. The water temperature in the underground heat exchanger 16 is the same as the groundwater temperature, which is 16 degrees. The circulating water of 16 degrees in the underground heat exchanger is exchanged with the minus 25 degrees low-temperature refrigeration economy in the plate exchange evaporator 10 under the action of the temperature difference. After the circulating water in the underground heat exchanger 16 is cooled, it is sent back to the underground part of the underground heat exchanger 16 through the circulating water pump 11. At this time, the circulating water in the underground heat exchanger 16 is lower than the temperature of the groundwater. Therefore, under the action of the temperature difference, the circulating water in the underground heat exchanger absorbs the temperature of the groundwater and is sent to the plate exchange evaporator 10 through the circulating water pump 11 to exchange with the minus 25 degrees low-temperature refrigeration economy.In this reciprocating cycle, the refrigerant in the plate exchange evaporator 10 absorbs the heat of the circulating water in the buried pipe heat exchanger 16 and turns into a low-temperature and low-pressure gas-liquid state again. The gas-liquid refrigerant passes through the solenoid valve C19 to the four-way valve 2 and returns to the separator 24. A small part of the liquid refrigerant is stored in the separator 24, and most of the low-temperature and low-pressure gaseous refrigerant returns to the compressor 1 and is compressed into a high-temperature and high-pressure gaseous state again. After this reciprocating cycle reaches the set temperature of the drying room, the heating is stopped. The stopping sequence is as follows: after the compressor 1 stops for ten seconds, the circulating water pump 11 stops running. After thirty seconds, you can choose to keep running or stop the condenser fan 4. If you choose to keep running the condenser fan 4, it will not stop. After sixty seconds, close the solenoid valve B9 and the solenoid valve C19, and repeat the above steps to enter the water source operation mode. Ground source operation mode (recovering cold air): when drying is required, when the outdoor ambient temperature is high, start After the host is turned on, the host is manually selected to run the host in ground source operation mode. The operation process of the host system equipment is as follows: open the gate valve C14 and the gate valve D15. After the host controller 31 is powered on, the host is powered on. After five seconds, the solenoid valve B9 and the solenoid valve C19 are synchronously powered on and opened. After another ten seconds, the circulating water pump 11 starts to run. After another sixty seconds, the condenser fan 4 is turned on and runs. After another sixty seconds, the indoor coil 18 is turned on and runs. After another sixty seconds, the compressor 1 starts to run. The compressor 1 compresses the closed refrigerant connected to the copper tube 25 into a high-temperature and high-pressure gas. The refrigerant temperature can reach up to one hundred and twenty-five degrees. The high-temperature and high-pressure gaseous refrigerant passes through the four-way valve 2 and flows through the condenser 3. It begins to release heat. During the operation, the condenser fan 4 continuously drives the air in the drying room through the condenser 3. Since the air in the drying room is at room temperature. The air in the drying room and the high-temperature and high-pressure gaseous refrigerant in the condenser 3 at 125 degrees perform heat exchange under the action of temperature difference. The air temperature in the drying room rises, and the high-temperature and high-pressure refrigerant releases heat in the condenser 3 to form a gas-liquid mixed state. The refrigerant flowing out of the condenser 3 returns to the liquid storage tank 5, and the liquid storage tank 5 stores a small part of the liquid refrigerant. When most of the gaseous refrigerant flows through the filter 6, the impurities in the refrigerant are further cleaned to enhance the stability of the system. The refrigerant is intercepted under the action of the thermal expansion valve 7, and the high-temperature and high-pressure refrigerant is intercepted. Under the action of the flow, it becomes a low-temperature and low-pressure liquid. The lowest temperature of the liquid refrigerant can reach minus twenty-five degrees. The low-temperature refrigerant flows into the sheet metal exchange evaporator 10 through the solenoid valve B9. During the operation of the circulating water pump 11, the circulating water in the indoor coil 18 continuously drives the circulating water through the sheet metal exchange evaporator 10. The water temperature in the coil 18 is the same as the indoor temperature. The circulating water in the coil 18 is exchanged with the minus twenty-five degree low-temperature refrigerant in the sheet metal exchange evaporator 10 under the action of the temperature difference. After the circulating water in the coil 18 is cooled, it is sent back to the coil 18 through the circulating water pump 11.At this time, the circulating water in the coil 18 is lower than the temperature of the indoor air. At this time, the built-in fan in the coil 18 is in operation, constantly driving the indoor air through the circulating water in the coil. Under the action of the temperature difference, the water temperature in the coil 18 absorbs the heat in the indoor air and rises. On the contrary, the temperature of the indoor air decreases. The water in the coil 18 is sent to the sheet metal evaporator 10 through the circulating water pump 11 for heat exchange. In this reciprocating cycle, the indoor air temperature is reduced, which plays the role of free air conditioning refrigeration in summer. The refrigerant in the sheet metal evaporator 10 absorbs the heat of the circulating water in the coil 18 and turns into a low-temperature and low-pressure gas-liquid state again. The gas-liquid refrigerant passes through the solenoid valve C19 and then returns to the separator 24 through the four-way valve 2. A small part of the liquid refrigerant is stored in the separator 24, and most of the low-temperature and low-pressure gaseous refrigerant returns to the compressor 1 and is recompressed into a high-temperature and high-pressure gas. After the reciprocating cycle reaches the set temperature of the drying room, the heating stops. The stopping order is as follows: after the compressor 1 stops for ten seconds, the circulating water pump 11 stops running. After thirty seconds, you can choose to keep running or stop the condenser fan. Fan 4, if you choose to keep running condenser fan 4, it will not stop. After 60 seconds, close the solenoid valve B9 and the solenoid valve C19. The air duct can be kept running or stopped. If you choose to keep running the fan disk, it will not stop. Repeat the above steps. Water source operation mode (recycling refrigeration), dehumidification operation mode: when the humidity in the drying room is greater than the set humidity, after starting the host, it will be automatically or manually converted to the dehumidification operation mode after being detected by the host controller 31. The operation process of the host system equipment is as follows: After the host controller 31 is powered on, the host is powered on. Source, five seconds later, solenoid valve F33 and solenoid valve G34 are energized and opened simultaneously, ten seconds later, condenser fan 4 is turned on, and sixty seconds later, compressor 1 starts to run. Compressor 1 compresses the closed refrigerant connected to copper tube 25 into a high-temperature and high-pressure gas. The refrigerant temperature can reach up to 125 degrees. The high-temperature and high-pressure gaseous refrigerant passes through the four-way valve 2 and then flows through the condenser 3, and begins to release heat. During the operation of condenser fan 4, it continuously drives the air in the drying room to pass through condenser 3. Since the air in the drying room is at room temperature.The air in the drying room and the 125-degree high-temperature and high-pressure gaseous refrigerant in the condenser 3 are heat-exchanged by the temperature difference. The air temperature in the drying room rises, and the high-temperature and high-pressure refrigerant releases heat in the condenser 3 to form a gas-liquid mixed state. The refrigerant flowing out of the condenser 3 returns to the liquid storage tank 5, and the liquid storage tank 5 stores a small part of the liquid refrigerant. When most of the gaseous refrigerant flows through the filter 6, the impurities in the refrigerant are further cleaned to enhance the stability of the system. The refrigerant is intercepted under the action of the thermal expansion valve 7, and the high-temperature and high-pressure refrigerant is discharged. The high-pressure refrigerant is turned into a low-temperature and low-pressure liquid under the action of interception. The lowest temperature of the liquid refrigerant can reach minus 25 degrees. The low-temperature refrigerant flows into the dehumidification evaporator 32 through the solenoid valve F33. The condenser fan 4 continuously drives the air in the drying room to pass through the dehumidification evaporator 32 during operation. The air in the drying room is just heated by the condenser 3 and exchanges with the minus 25 degrees low-temperature refrigerant in the dehumidification evaporator 32 under the action of temperature difference. After the air in the drying room is cooled, condensation occurs. The air temperature and humidity in the drying room are After being reduced, it is discharged through the condenser fan 4. The refrigerant in the dehumidification evaporator 32 absorbs the heat in the air in the drying room and turns into a low-temperature and low-pressure gas-liquid state again. The gas-liquid refrigerant flows through the solenoid valve G34 to the four-way valve 2 and returns to the separator 24. A small part of the liquid refrigerant is stored in the separator 24, and most of the low-temperature and low-pressure gaseous refrigerant returns to the compressor 1 and is recompressed into a high-temperature and high-pressure gaseous state. This reciprocating cycle reaches the set humidity of the drying room and then stops dehumidification. The stopping order is as follows: after the compressor 1 stops for ten seconds, the condenser fan stops Run, close the solenoid valve F33 and the solenoid valve 34 after sixty seconds, repeat the above steps to enter the dehumidification operation mode. Through the setting of the host controller 31, when using the thin strip food drying and dehumidification heat recovery unit, the thin strip food drying and dehumidification heat recovery unit can be automatically controlled without manual operation, so that the noodles can be dried under relatively precise and stable temperature and humidity drying conditions with good drying quality. In addition, the thin strip food drying and dehumidification heat recovery unit does not emit any harmful substances such as waste gas and waste residue, and is an energy-saving and environmentally friendly product advocated by the state.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat recovery unit for drying and dehumidifying thin-strip food, comprising an evaporative heat exchange module, an underground water evaporation module, a compression heating and dehumidification module, and a condenser (3), characterized in that: A condenser fan (4) is arranged inside the condenser (3), a dehumidification evaporator (32) is arranged on the right side of the condenser fan (4), a host controller (31) is arranged on the right side of the condenser (3), a compressor (1) is arranged on the right side of the host controller (31), a copper pipe (25) is arranged above the compressor (1), a solenoid valve G (34) is arranged below the compressor (1), a solenoid valve F (33) is arranged below the solenoid valve G (34), a thermal expansion valve (7) is arranged below the solenoid valve F (33), a solenoid valve A (8) is arranged below the thermal expansion valve (7), and a filter is arranged on the left side of the thermal expansion valve (7). (6), a liquid storage tank (5) is arranged on the left side of the filter (6), a four-way valve (2) is arranged on the right side of the compressor (1), a separator (24) is arranged below the four-way valve (2), a heat exchanger (28) is arranged on the right side of the four-way valve (2), a fresh air fan (26) is arranged above the heat exchanger (28), a hot air dehumidification port (29) is arranged on the left side of the heat exchanger (28), a fresh air inlet (30) is arranged below the heat exchanger (28), a dehumidification fan (27) is arranged on the right side of the heat exchanger (28), an evaporator (22) is arranged on the right side of the dehumidification fan (27), and a hot air dehumidification port (29) is arranged on the left side of the heat exchanger (28). An evaporator fan (23) is provided, a coil (18) is provided to the right of the evaporator (22), a solenoid valve E (21) is provided below the evaporator (22), a solenoid valve D (20) is provided to the right of the solenoid valve E (21), a solenoid valve C (19) is provided below the solenoid valve D (20), a plate exchange evaporator (10) is provided to the right of the solenoid valve C (19), a gate valve D (15) is provided to the right of the plate exchange evaporator (10), a gate valve A (12) is provided below the gate valve D (15), a solenoid valve B (9) is provided below the solenoid valve C (19), a circulating water pump (11) is provided to the right of the solenoid valve B (9), A water pipe (17) is arranged below the coil (18), a gate valve C (14) is arranged below the water pipe (17), a gate valve B (13) is arranged below the gate valve C (14), and a ground pipe heat exchanger (16) is arranged below the gate valve B (13); a heat exchanger (28) is arranged on the evaporator (22) of the evaporative heat exchange module, and a fresh air inlet pipe, a hot air dehumidification outlet pipe, and an ambient air inlet pipe are respectively arranged on the heat exchanger (28); the ground pipe water evaporation module is provided with a refrigerant inlet and outlet on one side of the sheet metal evaporator (10), and the other side of the sheet metal evaporator (10) is connected to the ground pipe heat exchanger (16) via a circulating water pump (11);In the compression heating and dehumidification module, the refrigerant outlet of the compressor (1) is connected to the four-way valve (2), the refrigerant return port of the four-way valve (2) is connected to the compressor (1) through a separator (24), the refrigerant outlet of the four-way valve (2) is connected to the inlet of the condenser (3), the refrigerant outlet of the condenser (3) is connected to the filter (6) and the thermal expansion valve (7) through a liquid storage tank (5), the outlet of the thermal expansion valve (7) is respectively connected to the evaporation heat exchange module, the buried pipe water evaporation module, and the inlet of the dehumidification evaporator, and the dehumidification evaporator (32) is arranged on the working gas inlet side of the condenser (3) of the compression heating and dehumidification module; the liquid storage tank (5) is provided with a liquid outlet pipe (36), the outside of the liquid outlet pipe (36) is provided with a rubber sleeve (35), the inner wall of the rubber sleeve (35) is provided with a placement groove (37), and the inside of the placement groove (37) is provided with a sealing ring (38). ; 2. The thin strip food drying and dehumidification heat recovery unit according to claim 1, characterized in that: The outer diameter of the liquid outlet pipe (36) corresponds to the inner diameter of the rubber sleeve (35), and the rubber sleeve (35) and the liquid outlet pipe (36) are connected by sleeve connection.

3. The drying and dehumidifying heat recovery unit for thin strips of food according to claim 2, characterized in that: The rubber sleeve (35) is a hollow annular structure and is made of rubber material.

4. The thin strip food drying and dehumidification heat recovery unit according to claim 3, characterized in that: The inner width of the placement groove (37) corresponds to the outer width of the sealing ring (38), and the placement groove (37) and the sealing ring (38) are connected by a snap-fitting manner.

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