CN214075859U - Solid dehumidification system with self-feedback control dehumidification capacity - Google Patents

Solid dehumidification system with self-feedback control dehumidification capacity Download PDF

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CN214075859U
CN214075859U CN202023033404.0U CN202023033404U CN214075859U CN 214075859 U CN214075859 U CN 214075859U CN 202023033404 U CN202023033404 U CN 202023033404U CN 214075859 U CN214075859 U CN 214075859U
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air
dehumidification
solid
static pressure
air outlet
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李国柱
王清勤
赵乃妮
朱荣鑫
孟冲
刘茂林
邓月超
谢琳娜
赵旭东
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China Academy of Building Research CABR
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China Academy of Building Research CABR
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Abstract

The utility model provides a from solid dehumidification system of feedback control dehumidification volume belongs to air dehumidification technical field. The device comprises a filtering device, an air supply device, a silencing static pressure device, a solid dehumidifying device and a mixed flow static pressure device which are arranged in a shell; the shell is also internally provided with a regulating valve, a sensor and a flowmeter. The control method comprises the following steps: air enters from the air inlet I through the air supply device, the total amount of the air entering the system is controlled by the adjusting valve A, and then the air passes through the filtering device; after the air through governing valve B gets into the dehumidification of solid dehydrating unit, get into mixed flow static pressure device through governing valve C and mix with the air that directly passes through governing valve D, then flow out through air outlet I. The utility model provides a solid dehumidification system of self-feedback control dehumidification volume is the dehydrating unit of an adjustable dehumidification volume, through intelligent monitoring system, realizes the accurate control of dehumidification volume; and the structure is simple, the practicability is strong, and the air dehumidifying device has popularization and application values in the technical field of air dehumidification.

Description

Solid dehumidification system with self-feedback control dehumidification capacity
Technical Field
The utility model relates to an air dehumidification technical field, concretely relates to from solid dehumidification system of feedback control dehumidification volume.
Background
The main air dehumidification modes at present comprise solution dehumidification, solid adsorption dehumidification, rotary wheel dehumidification and condensation dehumidification, and the rotary wheel dehumidification has the advantages of small occupied area, simple structure and small air handling capacity; the solution dehumidification has the problem of corrosion of a moisture absorbent, the performance of a solution dehumidification air-conditioning system is generally low, and the consumption of cooling water is large; the condensation dehumidification needs additionally to utilize electric energy and the like to produce low-temperature cold water, increases the energy consumption of the system, and the air temperature is lower after dehumidification, generally still needs the reheating process to improve the air temperature, and further increases the energy consumption. The solid adsorption dehumidification has the advantages of large air handling capacity, wide application range and the like, and is very suitable for systems with large air demand, such as independent temperature and humidity control systems, direct utilization of natural cold sources (air) of data centers and the like.
However, at present, various types of dehumidification cannot realize accurate control of dehumidification capacity. Taking a typical scene of dehumidification of air supply for an air conditioning system of a data center as an example, once the humidity of cooling air of IT equipment of the data center exceeds the standard, a water film is easily formed on the surface of an element or a dielectric material, so that a conductive path and flashover are caused, and the reliability of the circuit is seriously reduced; some plastic and rubber products can deform or even be damaged due to water absorption; if the air is too dry, severe static electricity is generated, also damaging delicate IT equipment. Therefore, the air needs to be accurately dehumidified, so that the air meets the requirement of relative humidity (40% -60%) of a cold channel of a data center or an air inlet area of a cabinet.
In addition, in order to ensure the dehumidification effect, the dehumidification bed is designed according to the worst condition (maximum humidity) of the dehumidified air. Continuing with the above scenario as an example, when the dehumidified air is outdoor air, the humidity of the outdoor air is constantly changed, and the time of the most unfavorable dehumidification is short, and the dehumidification bed is in an operating state with a small dehumidification amount for most of the time, so that the air is excessively dehumidified, the air exceeds the allowable humidity range, and the air is dried. If the air is returned to the allowable humidity range, the air needs to be humidified again, which increases the complexity of the system and increases the energy consumption of the system. Meanwhile, in the operating state of excessive air dehumidification, the dehumidification bed has resistance, so that the dehumidification quantity demand is not large, and under the condition that air with the same air quantity enters the dehumidification bed, the useless energy consumption of the fan is increased equivalently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a from solid dehumidification system of feedback control dehumidification portion.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a solid dehumidification system with self-feedback control of dehumidification capacity comprises a shell, wherein the shell is provided with an air inlet I and an air outlet I, and the shell comprises a filtering device, an air supply device, a silencing static pressure device, a solid dehumidification device and a mixed flow static pressure device which are sequentially arranged along the air flowing direction;
the static silencing device comprises two air outlets II, the mixed flow static pressure device comprises two air inlets II, a first air outlet II of the static silencing device is connected with an air inlet III of the solid dehumidifying device, an air outlet III of the solid dehumidifying device is connected with a first air inlet II of the mixed flow static pressure device, and a second air outlet II of the static silencing device is connected with a second air inlet II of the mixed flow static pressure device;
an adjusting valve A is arranged at the end IV of the air inlet of the filtering device, an adjusting valve B is arranged between the first air outlet II and the air inlet III, an adjusting valve C is arranged between the air outlet III and the first air inlet II, and an adjusting valve D is arranged between the second air outlet II and the second air inlet II;
a temperature sensor and a humidity sensor are arranged between the first air outlet II and the regulating valve B, between the air outlet III and the regulating valve C, and between the air outlet of the mixed flow static pressure device and the air outlet I; flowmeters are arranged between the regulating valve B and the air inlet III and between the regulating valve D and the second air inlet II;
air supply arrangement, governing valve A, governing valve B, governing valve C, governing valve D, temperature sensor, humidity transducer and flowmeter all are connected with intelligent monitoring system electricity.
Preferably, rain-proof tripe wind gap all is equipped with in air intake I and I department of air outlet.
Preferably, the air supply device is a variable frequency air supply blower.
Preferably, the regulating valves A, B, C and D are all electric split multi-page regulating valves.
Preferably, the humidity sensor is a correlated humidity sensor.
Preferably, the flow meter is an anemometer. The air flow is calculated by measuring the flow speed and the cross section area of the wind through an anemometer.
Preferably, a plurality of solid dehumidifying bed groups are arranged in the solid dehumidifying device.
Preferably, a plurality of solid dehumidification bed group is detachable respectively establishes in the solid dehumidification device, be equipped with on the casing and be used for taking out and changing the export of solid dehumidification bed group.
Preferably, the air inlet I, the filtering device, the air supply device, the noise elimination static pressure device, the solid dehumidifying device, the mixed flow static pressure device and the air outlet I are sequentially communicated through a pipeline.
The control method of the solid dehumidification system with the self-feedback dehumidification control comprises the following steps:
air enters from an air inlet I on the shell through an air supply device, the total amount of the air entering the system is controlled by an adjusting valve A, and the entering air is purified through a filtering device;
the purified air passes through a silencing static pressure device to stabilize the air flow and reduce the vibration of the air flow;
after the air passing through the regulating valve B enters the solid dehumidifying device for dehumidification, the air enters the mixed flow static pressure device through the regulating valve C and is subjected to mixed noise reduction treatment with the air directly passing through the regulating valve D, and then the air flows out through an air outlet I of the shell;
feeding back the temperature and the humidity to the intelligent monitoring system according to the temperature sensor and the humidity sensor, and monitoring and determining the moisture content in the outdoor air; controlling the air flow flux of the regulating valve B and the regulating valve D through a computing system and an intelligent monitoring system according to the requirement of the required moisture content of the outflow air and the dehumidification capacity of the dehumidification bed;
the air flow flux through the regulating valve B and the regulating valve D is fed back to the intelligent monitoring system to control the total air amount of the regulating valve A; the intelligent monitoring system is a DDC controller.
The utility model has the advantages that:
1) the utility model provides a solid dehumidification system with self-feedback control dehumidification capacity, which is a dehumidification device with adjustable dehumidification capacity and solves the technical problem of accurately controlling the dehumidification capacity of a dehumidification bed through an intelligent monitoring system; on one hand, the air dehumidification amount is predicted according to outdoor weather conditions, and the opening of the related valve is intelligently adjusted in advance, so that the large fluctuation of the dehumidification amount caused by outdoor humidity fluctuation is avoided; on the other hand, the air humidity condition of the point location is monitored by the relative humidity sensor and fed back to the intelligent monitoring system to correct the opening of the valve, so that the accurate control of the dehumidification capacity is realized;
2) the utility model provides a from solid dehumidification system of feedback control dehumidification volume's simple structure, convenient to use, the practicality is strong, and its control method is simple easily to be operated, at air dehumidification technical field, has popularization and application and worth.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a self-feedback control dehumidification system provided by the present invention;
fig. 2 is a schematic diagram of an internal structure of a mixed flow static pressure device in a self-feedback control dehumidification system provided by the present invention;
the air conditioner comprises a shell 1, an air inlet I, an air outlet I, a filtering device 4, an air supply device 5, a silencing static pressure device 6, a solid dehumidifying device 7, a mixed flow static pressure device 8, a first air outlet II, an air inlet III, an air outlet III 11, an air outlet III, a first air inlet II, a second air outlet 13, a second air outlet II, a second air inlet 15, an air inlet IV, a regulating valve A, a regulating valve B, a regulating valve C, a regulating valve D, a DDC controller 20, a louver air port 21 and an outlet 22.
Detailed Description
The embodiments of the present invention will be described with reference to the accompanying drawings and preferred embodiments, and other advantages and effects of the invention will be easily understood by those skilled in the art from the disclosure in the specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
As shown in fig. 1 and 2, a solid dehumidification system with self-feedback control of dehumidification capacity comprises a shell 1, wherein the shell is provided with an air inlet i 2 and an air outlet i 3, and the shell 1 comprises a filtering device 4, an air supply device 5, a silencing static pressure device 6, a solid dehumidification device 7 and a mixed flow static pressure device 8 which are sequentially arranged along the air flow direction; the silencing static pressure device 6 comprises two air outlets II, the mixed flow static pressure device 8 comprises two air inlets II, a first air outlet II 9 of the silencing static pressure device 6 is connected with an air inlet III 10 of the solid dehumidifying device 7, an air outlet III 11 of the solid dehumidifying device 7 is connected with a first air inlet II 12 of the mixed flow static pressure device 8, and a second air outlet II 13 of the silencing static pressure device 6 is connected with a second air inlet II 14 of the mixed flow static pressure device 8; an adjusting valve A16 is arranged at the end of an air inlet IV 15 of the filtering device 4, an adjusting valve B17 is arranged between a first air outlet II 9 and an air inlet III 10, an adjusting valve C18 is arranged between an air outlet III 11 and a first air inlet II 12, and an adjusting valve D19 is arranged between a second air outlet II 13 and a second air inlet II 14; a relative humidity sensor H1 and a temperature sensor T1 are arranged between the first air outlet II 9 and the regulating valve B17, a relative humidity sensor H2 and a temperature sensor T2 are arranged between the air outlet III 11 and the regulating valve C18, and a temperature sensor H3 and a temperature sensor T3 are arranged between the air outlet of the mixed flow static pressure device 8 and the air outlet I3; a flow meter Q1 is arranged between the regulating valve B17 and the air inlet III 10, and a flow meter Q2 is arranged between the regulating valve D19 and the second air inlet II 14; the blower 5, the adjusting valve a16, the adjusting valve B17, the adjusting valve C18, the adjusting valve D19, the relative humidity sensors H1, H2, H3, the temperature sensors T1, T2, T3, the flow meters Q1, Q2 are all electrically connected to the DDC controller 20. Air is delivered to each device through pipelines in a self-feedback control dehumidification system for solids. Relative humidity sensors H1, H2, H3, temperature sensors T1, T2, T3, flow meters Q1 and Q2 are all arranged in the pipelines at the corresponding positions, the relative humidity in the air in the pipelines at the corresponding positions is fed back to the DDC controller 20 through the relative humidity sensors H1, H2 and H3, the temperature in the air in the pipelines at the corresponding positions is fed back to the DDC controller 20 through the degree sensors T1, T2 and T3, and the flow rate of the air in the pipelines at the corresponding positions is fed back to the DDC controller 20 through the flow meters Q1 and Q2, so that the flow rate of the passing air is controlled through the feedback data of the DDC controller 20 and the humidity required by the actual air to control the regulating valves a16, B17 and D19.
Rain-proof tripe wind gap 21 is all equipped with in air intake I2 and air outlet I3 department. Thereby avoiding rainwater from entering the solid dehumidification system, causing damage to the internal devices and reducing the service life.
The air supply device 5 is a variable frequency air supply device. The energy consumption can be reduced by adjusting the working frequency of the blower through the required air flow.
The regulating valve A16, the regulating valve B17, the regulating valve C18 and the regulating valve D19 are all electric split multi-page regulating valves. The flow meter is an anemometer.
A plurality of solid dehumidifying bed groups are arranged in the solid dehumidifying device 7. The number of air entering the dehumidification bed is controlled by arranging the bypass pipeline with the electric folio multi-page regulating valve, so that the energy consumption of the fan is reduced.
The solid dehumidifying bed sets are respectively and detachably arranged in the solid dehumidifying device 7, and the shell 1 is provided with an outlet 22 for taking out and replacing the solid dehumidifying bed sets. When the dehumidification bed has no dehumidification effect, the solid dehumidification bed set can be replaced through the outlet on the shell 1, so that the replacement cost can be reduced.
The control method of the solid dehumidification system with the self-feedback dehumidification control comprises the following steps:
air enters from an air inlet I2 on the shell 1 through an air supply device 5, the total amount of the air entering the system is controlled by an adjusting valve A16, and the entering air is purified through a filter device 4;
the purified air passes through a silencing static pressure device 6 to stabilize the air flow and reduce the vibration of the air flow;
after the air passing through the regulating valve B17 enters the solid dehumidifying device 7 for dehumidification, the air enters the mixed flow static pressure device 8 through the regulating valve C18 and is subjected to mixed noise reduction treatment with the air directly passing through the regulating valve D19, and then the air flows out through an air outlet I3 of the shell;
feeding back the temperature and the humidity to the DDC controller 20 according to the temperature sensor and the humidity sensor, and monitoring and determining the moisture content in the outdoor air; controlling the air flow rates of regulator valve B17 and regulator valve D19 by the computing system and DDC controller 20 according to the desired moisture content requirement of the effluent air and the dehumidification capacity of the dehumidification bed;
the air flow flux through regulator valve B17 and regulator valve D19 is fed back to the DDC controller 20 to control the total amount of air in regulator valve a 16.
The computing system is used for computing and converting parameters such as the monitored air relative humidity, the air temperature and the air flow into the air moisture content.
An electrically actuated, split multiple-page regulator valve a is used to control the amount of air entering the system.
The air filtering device 4 is used for purifying air entering the solid dehumidification bed so as to ensure the cleanliness of the air. The configuration and the model selection of the filter in the air filtering device 4 are determined according to the air pollution condition and the purification requirement of the dehumidification bed, so that the resistance increase caused by the overlarge model selection is prevented, and the energy consumption of a fan is further increased; and the phenomenon that the performance of the dehumidification bed is influenced because the dehumidification agent is polluted by too small model selection and cannot reach effective air purification capacity is prevented.
The silencing static pressure device 6 is a steady flow section silencing static pressure box and is used for stabilizing airflow and reducing airflow vibration.
And the air flow meters Q1 and Q2 are used for monitoring the air flow entering the dehumidification bed group and feeding back an air flow signal to the intelligent monitoring system, namely the DDC controller 20, so that the opening degree of the electric multi-page regulating valve A16 is automatically regulated, and the total air flow meets the operation requirement.
Calculating, by the computing system, a moisture content in the outdoor air from the H1 and T1 monitoring results; the flow rates through regulator valve B17 and regulator valve D19, respectively, at the time of reaching the output air moisture content range are back calculated by calculating the dehumidification capacity of the system and the dehumidification bed. The feedback to the DDC controller 20 previously adjusts the opening degrees of the valves of the regulator valve B17 and the regulator valve D19. The regulating valve B17 and the regulating valve D19 are in complementary linkage, and if the opening degree of the regulating valve B17 is 30%, the opening degree of the regulating valve D19 is 70%. In this case, the regulator valve C18 is in a fully open state.
The dehumidification performance of the dehumidification bed is reduced due to the increase of the dehumidification time of the dehumidification bed, and the dehumidification capacity condition of the dehumidification bed is monitored through H2 and T2. When H3 and T3 monitor that the humidity of the outlet air is not in the dehumidification range, DDC controller 20 dynamically controls the opening degree of the valves of regulating valve B17 and regulating valve D19, namely, the opening degree of regulating valve B17 is increased, and the opening degree of regulating valve D19 is decreased, so that the monitoring results of H3 and T3 meet the requirements. When the H2 and T2 monitor that the dehumidification capacity of the dehumidification bed reaches the limit, namely the monitoring results of H2 and T2 are similar to the monitoring results of H1 and T1, and the monitoring results of H3 and T3 exceed the range requirement, the monitoring results are fed back to the DDC controller 20 to start an alarm.
When the H1, T1 monitoring results show that dehumidification of outdoor air is not required, the regulator valve B17 is closed and the regulator valve D19 is fully opened by the DDC controller 20. At this point the regulator valve C18 is also closed, ensuring that no air passes through the desiccant bed. When dehumidification is required, the opening of the regulating valve B17 and the regulating valve D19 are adjusted according to the method described above, with the regulating valve C18 in a 100% open state.
The utility model provides a solid dehumidification system with self-feedback control dehumidification capacity, which is a dehumidification device with adjustable dehumidification capacity and solves the technical problem of accurately controlling the dehumidification capacity of a dehumidification bed through an intelligent monitoring system; on one hand, the air dehumidification amount is predicted according to outdoor weather conditions, and the opening of the related valve is intelligently adjusted in advance, so that the large fluctuation of the dehumidification amount caused by outdoor humidity fluctuation is avoided; on the other hand, the air humidity condition of the point location is monitored by the relative humidity sensor and fed back to the intelligent monitoring system to correct the opening of the valve, so that the accurate control of the dehumidification capacity is realized; the air dehumidification device is simple in structure, convenient to use, high in practicability, simple and easy to operate in a control method, and has popularization and application values in the technical field of air dehumidification.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (9)

1. A solid dehumidification system with self-feedback control of dehumidification capacity comprises a shell, wherein the shell is provided with an air inlet I and an air outlet I, and is characterized in that the shell comprises a filtering device, an air supply device, a silencing static pressure device, a solid dehumidification device and a mixed flow static pressure device which are sequentially arranged along the air flowing direction;
the static silencing device comprises two air outlets II, the mixed flow static pressure device comprises two air inlets II, a first air outlet II of the static silencing device is connected with an air inlet III of the solid dehumidifying device, an air outlet III of the solid dehumidifying device is connected with a first air inlet II of the mixed flow static pressure device, and a second air outlet II of the static silencing device is connected with a second air inlet II of the mixed flow static pressure device;
an adjusting valve A is arranged at the end IV of the air inlet of the filtering device, an adjusting valve B is arranged between the first air outlet II and the air inlet III, an adjusting valve C is arranged between the air outlet III and the first air inlet II, and an adjusting valve D is arranged between the second air outlet II and the second air inlet II;
a temperature sensor and a humidity sensor are arranged between the first air outlet II and the regulating valve B, between the air outlet III and the regulating valve C, and between the air outlet of the mixed flow static pressure device and the air outlet I; flowmeters are arranged between the regulating valve B and the air inlet III and between the regulating valve D and the second air inlet II;
air supply arrangement, governing valve A, governing valve B, governing valve C, governing valve D, temperature sensor, humidity transducer and flowmeter all are connected with intelligent monitoring system electricity.
2. The system for dehumidifying solids with self-feedback control as claimed in claim 1, wherein rain-proof louver openings are disposed at the air inlet I and the air outlet I.
3. The self-feedback controlled solids dehumidification system according to claim 1, wherein the air mover is a variable frequency blower.
4. The self-feedback moisture removal system as in claim 1, wherein each of said damper valves a, B, C and D are electrically split multi-leaf damper valves.
5. The self-feedback moisture removal system as in claim 1 wherein said humidity sensor is an associated humidity sensor.
6. The self-feedback control dehumidification system of claim 1 wherein the flow meter is an anemometer.
7. The self-feedback solids dehumidification system according to claim 1, wherein a plurality of solids dehumidification bed sets are provided within the solids dehumidification device.
8. The system of claim 7, wherein the plurality of solid desiccant bed units are detachably disposed in the solid desiccant device, and the housing has an outlet for removing and replacing the solid desiccant bed units.
9. The solid dehumidification system with self-feedback control of dehumidification capacity as claimed in claim 1, wherein the air inlet I, the filtering device, the air supply device, the silencing static pressure device, the solid dehumidification device, the mixed flow static pressure device and the air outlet I are sequentially communicated with each other through a pipeline.
CN202023033404.0U 2020-12-16 2020-12-16 Solid dehumidification system with self-feedback control dehumidification capacity Active CN214075859U (en)

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CN202023033404.0U CN214075859U (en) 2020-12-16 2020-12-16 Solid dehumidification system with self-feedback control dehumidification capacity

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Application Number Priority Date Filing Date Title
CN202023033404.0U CN214075859U (en) 2020-12-16 2020-12-16 Solid dehumidification system with self-feedback control dehumidification capacity

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