Equipment air inlet temperature and humidity control system

Abstract

The equipment air inlet temperature and humidity control system comprises a cooling device, a dehumidification device, a heating device and a humidification device, first temperature and humidity detection devices are arranged between the cooling device and the dehumidification device and between the dehumidification device and the heating device respectively, the first temperature and humidity detection devices are in telecommunication connection with a controller, and the controller is in communication connection with the dehumidification device. And the controller is in telecommunication connection with the cooling device, the dehumidifying device and the humidifying device. The humidity detection device has the advantages that the influence of environment temperature on humidity detection can be reduced, the accuracy of humidity detection is improved, standardization and cross-condition comparison are facilitated, and therefore accurate adjustment of the humidity adjusting device is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to food, medicine packing technical field, concretely relates to a device air inlet temperature and humidity control system. BACKGROUND

[0002] In the food, medicine packing technical field, many devices need to continuously send in air during operation. Stable control of temperature and humidity is closely related to the stability of products, and can prevent damage of the device caused by high temperature and condensation.

[0003] For example, in the solid preparation coating production process, the air humidity value of the air inlet system is a key process parameter for controlling the quality, stability and production consistency of medicines. In the widely used traditional Chinese medicine tablet coating, due to the particularity of raw materials, easy moisture absorption, and the characteristics of changing the properties of preparations, higher requirements for the stability and accuracy of the coating machine air inlet humidity control system are also put forward.

[0004] In the subtropical region, the humidity in spring and summer is much higher than that in autumn and winter. The conventional method for controlling the temperature and humidity of the air inlet of the coating machine is to use a heat exchanger and a refrigerator to adjust the temperature and humidity of the air inlet. However, this method has limitations and poor adjustment accuracy, and it is difficult to accurately control the temperature under two environmental conditions with a large difference in temperature and humidity, which affects the quality of the coating product. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a device air inlet temperature and humidity control system which can reduce the influence of environmental temperature on humidity detection, improve the accuracy of humidity detection, facilitate standardization and cross-condition comparison, and thus facilitate accurate adjustment of the humidity adjusting device.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A device air inlet temperature and humidity control system, comprising a cooling device, a dehumidifying device, a heating device and a humidifying device, first temperature and humidity detection devices are arranged between the cooling device and the dehumidifying device and between the dehumidifying device and the heating device, the first temperature and humidity detection devices are electrically connected with a controller, and the controller is electrically connected with the cooling device, the dehumidifying device and the humidifying device.

[0008] As a further improvement of the above technical scheme:

[0009] The input end of the cooling device is provided with a temperature detection device, and the output end of the humidifying device is provided with a second temperature and humidity detection device.

[0010] The input end of the cooling device is provided with a temperature detection device, and the output end of the humidifying device is provided with a second temperature and humidity detection device.

[0011] The output end of the humidifying device is provided with a third filter, which is located between the humidifying device and the second temperature and humidity detection device.

[0012] The filtering effects of the first filter, the second filter and the third filter are sequentially increased.

[0013] The cooling device is a surface cooling machine, the controller is in electrical connection with a chilled water inlet valve of the surface cooling machine, and a drain pipe is connected to a pipeline between the surface cooling machine and the dehumidifying device.

[0014] The dehumidifying device is a rotary dehumidifying machine, and the controller is in electrical connection with a steam valve of the rotary dehumidifying machine.

[0015] The heating device is a steam heating machine.

[0016] The humidifying device is a steam humidifying machine, and the controller is in electrical connection with an adjusting valve of the steam humidifying machine.

[0017] Compared with the prior art, the device has the following advantages:

[0018] The air entering the control system passes through the cooling device and the dehumidifying device in sequence and then passes through the heating device and the humidifying device. In the control system, the temperature and humidity of the air can be accurately controlled independently. When adjusting the temperature or humidity of the air, the interference on the other physical property does not need to be considered, so that independent adjustment and control of a single factor are realized. Before the air enters the dehumidifying device and the humidifying device, the relative humidity and the relative temperature are detected simultaneously by the first temperature and humidity detection device, and the relative humidity is converted into absolute humidity through a formula. The absolute humidity is compared with the target humidity, and finally the adjusting degree of the rear humidity adjusting device is controlled by the controller. Since the relative humidity is converted into absolute humidity, the influence of the environmental temperature on the detection humidity is reduced, the accuracy of the humidity detection is improved, the standardization and cross-condition comparison are facilitated, so that the humidity adjusting device can be accurately adjusted, and finally the accuracy of the temperature and humidity control is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the air inlet temperature and humidity control system of the device.

[0020] In the drawing, the reference numbers represent: 1, cooling device; 10, adjusting valve; 2, dehumidifying device; 3, heating device; 4, humidifying device; 5, first temperature and humidity detection device; 6, temperature detection device; 7, second temperature and humidity detection device; 81, first filter; 82, second filter; 83, third filter; 9, drain pipe. DETAILED DESCRIPTION

[0021] The utility model will be described further in detail below in combination with the drawings and specific embodiments of the utility model.

[0022] In the description of the utility model, it is understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0023] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0024] In the utility model, unless otherwise specifically defined and limited, the terms "assembly", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Figure 1 An embodiment of the utility model air inlet temperature and humidity control system of equipment is shown, the air inlet temperature and humidity control system of equipment of this embodiment, including cooling device 1, dehumidification device 2, temperature raising device 3 and humidification device 4, first temperature and humidity detection device 5 is arranged between cooling device 1 and dehumidification device 2, between dehumidification device 2 and temperature raising device 3, first temperature and humidity detection device 5 is electrically connected with controller, and the controller is electrically connected with cooling device 1, dehumidification device 2 and humidification device 4.

[0026] The air first passes through the cooling device 1 to be preliminarily cooled and dehumidified, then the relative humidity and the relative temperature of the air are simultaneously measured by the first temperature and humidity detection device 5, and the absolute humidity value is converted by a formula, and then the absolute humidity value is compared with the target humidity value, and the dehumidification degree of the dehumidification device 2 is controlled by the controller (not shown in the figure), then the air is detected again by the other first temperature and humidity detection device 5 and converted into absolute humidity, and the air is adjusted in temperature by the heating device 3, and then the humidification degree of the humidification device 4 is controlled by the controller.

[0027] The air first passes through the cooling device 1 to be preliminarily cooled and dehumidified, then the relative humidity and the relative temperature of the air are simultaneously measured by the first temperature and humidity detection device 5, and the absolute humidity value is converted by a formula, and then the absolute humidity value is compared with the target humidity value, and the dehumidification degree of the dehumidification device 2 is controlled by the controller (not shown in the figure), then the air is detected again by the other first temperature and humidity detection device 5 and converted into absolute humidity, and the air is adjusted in temperature by the heating device 3, and then the humidification degree of the humidification device 4 is controlled by the controller.

[0028] It should be noted that the calculation method and formula for converting relative humidity into absolute humidity are as follows:

[0029]

[0030] Wherein, AH is the absolute humidity, the unit is grams per cubic meter; RH is the relative humidity, the unit is percent; T is the temperature, the unit is Celsius; e is the natural exponential function; the calculation method is a commonly used method in the art.

[0031] Further, in the embodiment, the input end of the cooling device 1 is provided with a temperature detection device 6, and the output end of the humidification device 4 is provided with a second temperature and humidity detection device 7. The temperature detection device 6 detects the temperature of the air before entering the cooling device 1, so that the cooling device 1 can more accurately adjust the temperature. The humidification device 4 finally detects the air whose temperature and humidity have been adjusted, to ensure that the adjusted air meets the production requirements.

[0032] Further, in the embodiment, the input end of the cooling device 1 is provided with a first filter 81 and a second filter 82 in sequence, and the temperature detection device 6 is located between the second filter 82 and the cooling device 1. The impurities in the air are filtered by the first filter 81 and the second filter 82 in sequence before the air enters the cooling device 1, so as to improve the cleanliness.

[0033] Further, in the embodiment, the output end of the humidifying device 4 is provided with a third filter 83, which is located between the humidifying device 4 and the second temperature and humidity detection device 7. The air after adjustment is filtered again through the third filter 83, so that the air cleanliness is further improved to meet the process requirements.

[0034] Further, in the embodiment, the filtering effects of the first filter 81, the second filter 82 and the third filter 83 are increased in turn. The first filter 81, the second filter 82 and the third filter 83 are respectively a primary filter, a medium filter and a high-efficiency filter.

[0035] Further, in the embodiment, the cooling device 1 is a surface cooling machine, the controller is in electrical connection with a chilled water inlet valve of the surface cooling machine, and a drain pipe 9 is connected to a pipeline between the surface cooling machine and the dehumidifying device 2. When the air passes through the surface cooling machine, the air is cooled to below the dew point temperature, at which time the water vapor in the air reaches saturation and condenses into water droplets, which are then discharged out of the system through the drain pipe 9, so that the content of the water vapor in the air is reduced. The controller can control the opening degree of the chilled water inlet valve of the surface cooling machine according to the comparison between the detected temperature of the temperature detection device 6 and the target temperature, so as to facilitate adjustment to the target temperature.

[0036] Further, in the embodiment, the dehumidifying device 2 is a rotary dehumidifier, and the controller is in electrical connection with a steam valve of the rotary dehumidifier. The rotary dehumidifier is provided with a rotary wheel, and the dehumidifying material is water. The rotary wheel is heated by steam to increase the temperature of the rotary wheel, so that the dehumidifying material loses water, and the rotary wheel regains the water absorption capacity. The controller controls the opening degree of the steam valve, so as to control the steam inflow, thereby adjusting the water absorption capacity of the rotary wheel and finally controlling the water absorption amount.

[0037] Further, in the embodiment, the air passing through the temperature increasing device 3 has a high temperature and a low humidity, and has the ability to contain water. The temperature increasing device 3 is a steam heating machine, which has a fast heating speed, a high efficiency and a uniform heating.

[0038] Further, in the embodiment, the humidifying device 4 is a steam humidifier, and the controller is in electrical connection with an adjusting valve 10 of the steam humidifier. The controller controls the opening degree of the adjusting valve 10 of the steam humidifier, so as to adjust the steam inflow, thereby achieving the purpose of adjusting the humidification amount.

[0039] Although the present application has been disclosed with reference to the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art, without departing from the technical scheme of the present application, can make many possible changes and modifications to the technical scheme of the present application disclosed above, or modify it into equivalent embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application should fall within the scope of protection of the technical scheme of the present application.

Claims

1. A device inlet air temperature and humidity control system, characterized in that: The device comprises a cooling device (1), a dehumidifying device (2), a heating device (3) and a humidifying device (4), the first temperature and humidity detecting device (5) is arranged between the cooling device (1) and the dehumidifying device (2) and between the dehumidifying device (2) and the heating device (3), the first temperature and humidity detecting device (5) is electrically connected with the controller, and the controller is electrically connected with the cooling device (1), the dehumidifying device (2) and the humidifying device (4).

2. The device inlet air temperature and humidity control system of claim 1, wherein: The input end of the cooling device (1) is provided with the temperature detecting device (6), and the output end of the humidifying device (4) is provided with the second temperature and humidity detecting device (7).

3. The device inlet air temperature and humidity control system of claim 2, wherein: The input end of the cooling device (1) is sequentially provided with the first filter (81) and the second filter (82), and the temperature detecting device (6) is arranged between the second filter (82) and the cooling device (1).

4. The device inlet air temperature and humidity control system of claim 3, wherein: The output end of the humidifying device (4) is provided with the third filter (83), and the third filter (83) is arranged between the humidifying device (4) and the second temperature and humidity detecting device (7).

5. The device inlet air temperature and humidity control system of claim 4, wherein: The filtering effects of the first filter (81), the second filter (82) and the third filter (83) are sequentially increased.

6. The equipment inlet air temperature and humidity control system of any one of claims 1 to 5, wherein: The cooling device (1) is a surface cooling machine, the controller is electrically connected with the chilled water inlet valve of the surface cooling machine, and a drain pipe (9) is connected between the surface cooling machine and the dehumidifying device (2).

7. The equipment inlet air temperature and humidity control system of any one of claims 1 to 5, wherein: The dehumidifying device (2) is a rotary dehumidifying machine, and the controller is electrically connected with the steam valve of the rotary dehumidifying machine.

8. The equipment inlet air temperature and humidity control system of any one of claims 1 to 5, wherein: The heating device (3) is a steam heating machine.

9. The equipment inlet air temperature and humidity control system of any one of claims 1 to 5, wherein: The humidifying device (4) is a steam humidifying machine, and the controller is electrically connected with the adjusting valve (10) of the steam humidifying machine.

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