Recyclable humidifier applied to food humidification

Abstract

The utility model provides a kind of applied to the recyclable humidifier of food humidification, in turn including feed end, first humidification zone, second humidification zone, cooling zone, discharge end;Primary steam control system is installed in the outside of main part for providing primary steam;The number of secondary steam control system is two groups, respectively set in first humidification zone and second humidification zone, for generating secondary normal-pressure steam by primary steam and normal-temperature clean water source heat exchange.The utility model passes through modularization design, so that first humidification zone and second humidification zone can independently control internal humidification air current humidity and air current direction etc Parameter, realizes the continuous circulation humidification of material;And the secondary steam humidifier control system of each humidification module, using primary steam and normal-temperature clean water source heat exchange, forms secondary normal-pressure steam to increase air humidity, avoids the energy loss caused by clean steam input continuously into humidifier, meets energy saving and emission reduction, green environmental protection concept.

Description

Technical Field

[0001] This utility model relates to the field of humidification equipment technology, and in particular to a recirculating humidifier for food humidification. Background Technology

[0002] In the food processing industry, humidification is a crucial step in ensuring food quality and taste. With the development of the food industry, the requirements for humidification equipment are becoming increasingly stringent, especially in continuous production lines, where precise control of the humidification process directly impacts the stability of product quality.

[0003] Currently, food humidification technology is mainly divided into two categories: intermittent humidification and continuous humidification. Intermittent humidification mainly uses humidification boxes or humidification rooms, in which food materials are placed for static humidification treatment. Humidification boxes or humidification rooms cannot continuously humidify materials. After humidification, the materials need to be manually or mechanically removed and transferred to the next process. During the removal and transfer process, the moisture content of the materials may change, which may adversely affect the next process.

[0004] While continuous humidifiers can continuously humidify materials, their humidification precision is coarse, and they cannot accurately control the temperature and humidity of the humidifying airflow, thus failing to precisely humidify the materials. At the same time, continuous humidifiers cannot flexibly control the direction of the humidifying airflow, resulting in uneven humidification of the materials. Finally, existing continuous humidifiers cannot effectively control air humidity because they continuously input clean steam into the humidifier, resulting in energy consumption and failing to meet the concepts of energy conservation, emission reduction, and green environmental protection.

[0005] Therefore, there is an urgent need for a humidification device that can achieve continuous humidification of materials, precise control of humidification parameters, flexible adjustment of humidification airflow direction, and meet energy-saving and environmental protection requirements, so as to meet the needs of modern food processing industry. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a recirculating humidifier for food humidification, which solves the problems of existing humidification equipment being unable to continuously and accurately humidify materials, having inflexible control over the direction of humidification airflow, and having high energy consumption.

[0007] To achieve the above and other related objectives, this utility model provides a recyclable humidifier for food humidification, comprising a main body, wherein the main body sequentially includes a feeding end, a first humidification zone, a second humidification zone, a cooling zone, and a discharging end; a feeding hopper is provided at the top of the feeding end; and a conveying device is provided inside the main body for conveying the material to be humidified from the feeding end to the discharging end.

[0008] It also includes a primary steam control system and a secondary steam control system. The primary steam control system is installed on the outside of the main body and is used to provide primary steam. There are two sets of secondary steam control systems, which are respectively set in the first humidification zone and the second humidification zone, and are used to generate secondary atmospheric pressure steam by exchanging heat between the primary steam and the ambient temperature clean water source.

[0009] In one embodiment of this utility model, the secondary steam control system includes a steam heat exchanger, a secondary steam humidifier, a steam spray bar, and a circulating fan; the steam heat exchanger is installed in the air duct of the first humidification zone / second humidification zone respectively, and is used to heat the circulating airflow in the first humidification zone / second humidification zone to the system set temperature; the steam spray bar is installed in the air duct of the first humidification zone / second humidification zone respectively; the secondary steam humidifier is installed on the top outer side of the main body and is connected to the steam spray bar in the first humidification zone / second humidification zone respectively, so as to spray the generated secondary atmospheric pressure steam into the air duct of the first humidification zone / second humidification zone through the steam spray bar.

[0010] Within the first humidification zone, the steam spray bar is located at the top of the air duct and sprays from top to bottom; the circulating fan is installed at the bottom of the air duct to mix the airflow with secondary atmospheric pressure steam and blow it upward over the material.

[0011] Within the second humidification zone, the steam spray bar is located at the bottom of the air duct and sprays from bottom to top; the circulating fan is installed at the top of the air duct to mix the airflow with the secondary atmospheric pressure steam and blow it downward over the material.

[0012] In one embodiment of the present invention, the first humidification zone and / or the second humidification zone are further provided with an air supply gate and an exhaust gate for manual control of their opening.

[0013] In one embodiment of this utility model, the first humidification zone and / or the second humidification zone are further provided with a process temperature sensor, a high temperature alarm sensor, and an integrated temperature and humidity sensor for monitoring and regulating humidification parameters.

[0014] In one embodiment of this utility model, the integrated temperature and humidity sensor is logically interlocked with the secondary steam humidifier. When the detected air humidity is greater than the set value, the operation of the secondary steam humidifier is suspended.

[0015] In one embodiment of the present invention, a differential pressure switch is further provided in the first humidification zone and / or the second humidification zone for measuring the pressure difference between the vent of the circulating fan and the indoor environment.

[0016] In one embodiment of this utility model, the cooling zone includes a chilled water heat exchanger, a makeup air fan, and a circulating fan. The chilled water heat exchanger is installed on the top of the main body and is used to cool ambient air into clean cold air. The makeup air fan is used to input cooling air into the cooling zone duct. The circulating fan is installed at the top of the cooling zone duct and is used to blow cold air downwards toward the material.

[0017] In one embodiment of this utility model, a process temperature sensor and a differential pressure switch are also provided in the cooling zone. The process temperature sensor is used to measure the temperature of the cold air; the differential pressure switch is used to measure the pressure difference between the vent of the circulating fan and the indoor environment.

[0018] In one embodiment of the present invention, the first humidification zone and the second humidification zone are connected in series, and the cooling zone is connected in series with the second humidification zone.

[0019] In one embodiment of this utility model, the conveying device is a continuous conveyor belt, which ensures that the material moves continuously during the humidification process.

[0020] As described above, the recirculating humidifier for food humidification of this invention has the following beneficial effects:

[0021] 1. This utility model adopts a modular design, dividing the humidifier into a feeding end, a first humidification zone, a second humidification zone, a cooling zone, and a discharging end. The first and second humidification zones can independently control parameters such as the flow rate, temperature, humidity, and airflow direction of the internal humidifying airflow, realizing continuous circulating humidification of materials with high humidification accuracy and good humidification uniformity, overcoming the shortcomings of existing humidification boxes and humidification rooms that cannot continuously humidify materials.

[0022] 2. This utility model solves the problem of uneven humidification of materials caused by the inability of existing continuous humidifiers to flexibly control the direction of humidification airflow. The steam spray bar in the first humidification zone is located at the top of the air duct and sprays from top to bottom, while the circulating fan is located at the bottom and blows air upward. The steam spray bar in the second humidification zone is located at the bottom of the air duct and sprays from bottom to top, while the circulating fan is located at the top and blows air downward.

[0023] 3. This utility model uses a logic interlock between an integrated temperature and humidity sensor and a secondary steam humidifier. When the detected air humidity is greater than the set value, the operation of the secondary steam humidifier is suspended, thus achieving precise control of air humidity. This solves the problem that existing continuous humidifiers have coarse humidification accuracy and cannot accurately control the temperature and humidity of the humidifying airflow.

[0024] 4. This utility model adopts a secondary steam humidifier control system, which uses primary steam to exchange heat with room temperature clean water to form secondary atmospheric pressure steam to increase air humidity, avoiding energy loss caused by continuously inputting clean steam into the humidifier, and conforming to the concepts of energy conservation, emission reduction and green environmental protection.

[0025] 5. This utility model sets up a cooling zone after the second humidification zone, and uses a chilled water heat exchanger to reduce the temperature of the material, which facilitates the smooth progress of the next process. The material humidified by the humidifier can directly enter the next process, ensuring the continuity and stability of production.

[0026] 6. The secondary atmospheric pressure steam of this utility model will not produce any pollutants and will not cause any harm to the environment or human health. It reduces product loss and lowers environmental pollution and equipment energy consumption. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the recyclable humidifier for food humidification disclosed in the embodiments of this utility model.

[0028] Figure 2 This is a cross-sectional view of the recyclable humidifier for food humidification disclosed in the embodiments of this utility model. Figure 1 .

[0029] Figure 3 This is a cross-sectional view of the recyclable humidifier for food humidification disclosed in the embodiments of this utility model. Figure 2 .

[0030] Figure 4 This is a top view schematic diagram of a recirculating humidifier for food humidification disclosed in an embodiment of this utility model.

[0031] Component designation explanation

[0032] 100. Feeding end; 110. Feeding hopper; 200. First humidification zone; 300. Second humidification zone; 400. Cooling zone; 410. Chilled water heat exchanger; 420. Make-up air fan; 500. Discharge end; 600. Conveying device; 700. Secondary steam control system; 710. Steam heat exchanger; 720. Secondary steam humidifier; 730. Steam spray bar; 740. Circulating fan. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figure 1-4This utility model provides a recirculating humidifier for food humidification, comprising a main body, which sequentially includes an inlet end 100, a first humidification zone 200, a second humidification zone 300, a cooling zone 400, and an outlet end 500. The first humidification zone 200 and the second humidification zone 300 are connected in series, and the cooling zone 400 is also connected in series with the second humidification zone 300. This series structure allows the material to pass through the two humidification zones and the cooling zone 400 sequentially, achieving sufficient humidification and appropriate cooling, ensuring humidification quality. A feeding hopper 110 is provided at the top of the inlet end 100. A conveying device 600 is provided inside the main body, which is used to convey the material to be humidified from the inlet end 100 to the outlet end 500. The conveying device 600 is a continuous conveyor belt, ensuring continuous movement of the material during the humidification process. The humidifier also includes a primary steam control system and a secondary steam control system 700. The primary steam control system is installed outside the main body and is used to provide primary steam. There are two sets of secondary steam control systems 700, which are respectively set in the first humidification zone 200 and the second humidification zone 300, and are used to generate secondary atmospheric pressure steam by exchanging heat between primary steam and ambient temperature clean water source.

[0035] The secondary steam control system 700 includes a steam heat exchanger 710, a secondary steam humidifier 720, steam spray booms 730, and a circulating fan 740. The steam heat exchanger 710 is installed in the air ducts of the first humidification zone 200 and the second humidification zone 300, respectively, to heat the circulating airflow in the first humidification zone 200 and the second humidification zone 300 to the system set temperature. The steam spray booms 730 are installed in the air ducts of the first humidification zone 200 and the second humidification zone 300, respectively. The secondary steam humidifier 720 is installed on the top outer side of the main body and is connected to the steam spray booms 730 in the first humidification zone 200 and the second humidification zone 300, respectively, to inject the generated secondary atmospheric pressure steam into the air ducts of the first humidification zone 200 and the second humidification zone 300 through the steam spray booms 730.

[0036] Within the first humidification zone 200, a steam spray bar 730 is located at the top of the air duct, spraying steam from top to bottom. A circulating fan 740 is installed at the bottom of the air duct to mix the airflow with secondary atmospheric pressure steam and then blow it upwards over the material. This design allows the steam to fully contact the material, improving humidification efficiency.

[0037] Within the second humidification zone 300, the steam spray bar 730 is located at the bottom of the air duct, spraying upwards. A circulating fan 740 is installed at the top of the air duct to mix the airflow with the secondary atmospheric pressure steam and then blow it downwards over the material. This reversed design ensures that the material is adequately humidified in different directions, improving humidification uniformity.

[0038] The first humidification zone 200 and the second humidification zone 300 are also equipped with air supply dampers and exhaust dampers for manual control of their opening. Adjusting these dampers controls the airflow and humidity within the humidification zone, meeting the humidification requirements of different materials. The first humidification zone 200 and the second humidification zone 300 are also equipped with process temperature sensors, high-temperature alarm sensors, and integrated temperature and humidity sensors for monitoring and regulating humidification parameters. The integrated temperature and humidity sensor is logically interlocked with the secondary steam humidifier 720; when the detected air humidity exceeds the set value, the secondary steam humidifier 720 is suspended to prevent over-humidification. The first humidification zone 200 and the second humidification zone 300 are also equipped with differential pressure switches to measure the pressure difference between the vent of the circulating fan 740 and the indoor environment. Monitoring the pressure difference allows for assessment of the fan's operating status and the unobstructed flow of the air ducts, ensuring the normal operation of the humidification system.

[0039] The cooling zone 400 includes a chilled water heat exchanger 410, a makeup air fan 420, and a circulating fan 740. The chilled water heat exchanger 410 is installed at the top of the main body and is used to cool ambient air into clean, cold air. The makeup air fan 420 is used to introduce cooling air into the air duct of the cooling zone 400. The circulating fan 740 is installed at the top of the air duct of the cooling zone 400 and is used to blow cold air downwards towards the material, rapidly cooling the material.

[0040] The cooling zone 400 is also equipped with a process temperature sensor and a differential pressure switch. The process temperature sensor measures the temperature of the cold air to ensure cooling effectiveness. The differential pressure switch measures the pressure difference between the flare of the circulating fan 740 and the indoor environment to monitor the fan's operating status.

[0041] In actual use, the material enters the feed end through the feed hopper and is then conveyed to the first humidification zone by the conveyor belt. In the first humidification zone, secondary atmospheric pressure steam is injected from above, mixes with the airflow generated by the circulating fan, and blows upward over the material, achieving initial humidification. The material continues to advance to the second humidification zone, where secondary atmospheric pressure steam is injected from below, mixes with the airflow generated by the circulating fan, and blows downward over the material, further humidifying it. Finally, the material enters the cooling zone, is cooled to a suitable temperature by cold air, and is then output from the discharge end. Throughout the entire process, various sensors monitor temperature and humidity parameters in real time to ensure that the humidification effect meets the requirements.

[0042] In summary, this invention, through modular design, enables independent control of parameters such as flow rate, temperature, humidity, and airflow direction of the internal humidifying airflow in both the first and second humidifying zones. This achieves continuous, cyclical humidification of materials with high precision and uniformity. Furthermore, the secondary steam humidifier control system in each humidifying module utilizes heat exchange between primary steam and ambient-temperature clean water to generate secondary atmospheric-pressure steam, increasing air humidity. This avoids energy loss caused by continuously inputting clean steam into the humidifier, aligning with energy conservation, emission reduction, and environmental protection principles. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0043] The terms used in this specification, such as "upper", "lower", "left", "right", "front", "back", "middle" and "one", are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0044] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A recirculating humidifier for food humidification, characterized in that, The device includes a main body, which sequentially comprises a feeding end, a first humidification zone, a second humidification zone, a cooling zone, and a discharging end; the main body is equipped with a conveying device for conveying the material to be humidified from the feeding end to the discharging end. It also includes a primary steam control system and a secondary steam control system. The primary steam control system is installed on the outside of the main body and is used to provide primary steam. There are two sets of secondary steam control systems, which are respectively set in the first humidification zone and the second humidification zone, and are used to generate secondary atmospheric pressure steam by exchanging heat between the primary steam and the ambient temperature clean water source.

2. The recirculating humidifier for food humidification according to claim 1, characterized in that, The secondary steam control system includes a steam heat exchanger, a secondary steam humidifier, steam spray rods, and a circulating fan. The steam heat exchanger is installed in the air duct of the first humidification zone / second humidification zone to heat the circulating airflow in the first humidification zone / second humidification zone to the system set temperature. The steam spray rods are installed in the air duct of the first humidification zone / second humidification zone. The secondary steam humidifier is installed on the top outer side of the main body and is connected to the steam spray rod in the first humidification zone / second humidification zone to spray the generated secondary atmospheric pressure steam into the air duct of the first humidification zone / second humidification zone through the steam spray rod.

3. The recirculating humidifier for food humidification according to claim 2, characterized in that, Within the first humidification zone, the steam spray bar is located at the top of the air duct and sprays from top to bottom; the circulating fan is installed at the bottom of the air duct to mix the airflow with secondary atmospheric pressure steam and blow it upward over the material.

4. The recirculating humidifier for food humidification according to claim 2, characterized in that, Within the second humidification zone, the steam spray bar is located at the bottom of the air duct and sprays from bottom to top; the circulating fan is installed at the top of the air duct to mix the airflow with the secondary atmospheric pressure steam and blow it downward over the material.

5. The recirculating humidifier for food humidification according to claim 1, characterized in that, The first humidification zone and / or the second humidification zone are also equipped with a make-up air gate and a dehumidification gate for manual control of their opening.

6. The recirculating humidifier for food humidification according to claim 1, characterized in that, The first humidification zone and / or the second humidification zone are also equipped with a process temperature sensor, a high temperature alarm sensor, and an integrated temperature and humidity sensor for monitoring and regulating humidification parameters; the integrated temperature and humidity sensor is logically interlocked with the secondary steam humidifier, and when the air humidity is detected to be greater than the set value, the operation of the secondary steam humidifier is suspended.

7. The recirculating humidifier for food humidification according to claim 1, characterized in that, The first humidification zone and / or the second humidification zone are also equipped with differential pressure switches to measure the pressure difference between the vent of the circulating fan and the indoor environment.

8. The recirculating humidifier for food humidification according to claim 1, characterized in that, The cooling zone includes a chilled water heat exchanger, a makeup air fan, and a circulating fan. The chilled water heat exchanger is installed on the top of the main body and is used to cool ambient air into clean cold air. The makeup air fan is used to input the cooling air into the cooling zone duct. The circulating fan is installed at the top of the cooling zone duct and is used to blow the cold air downwards toward the material.

9. The recirculating humidifier for food humidification according to claim 1, characterized in that, The cooling zone is also equipped with a process temperature sensor and a differential pressure switch. The process temperature sensor is used to measure the temperature of the cold air; the differential pressure switch is used to measure the pressure difference between the vent of the circulating fan and the indoor environment.

10. The recirculating humidifier for food humidification according to claim 1, characterized in that, The first humidification zone and the second humidification zone are connected in series, and the cooling zone is connected in series with the second humidification zone.

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