System for regulating and controlling sensible heat load of rotary dehumidifier

Abstract

The utility model discloses a system for regulating and controlling sensible heat load of a rotary dehumidifier, which regulates and controls rotary dehumidification sensible heat load by coupling a recovery air-conditioning condensate water system with a shallow soil source, and comprises a rotary dehumidification system mainly composed of a filter, a front surface air cooler, a middle surface air cooler, a rear surface air cooler, a dehumidification rotary wheel, a fan and a water pipe valve. The condensate water recycling system comprises a condensate water collecting disc, a water storage tank, a condensate water pump, a liquid level instrument, a temperature sensor, a controller and a condensing coil; the water storage tank recovers condensate water generated by refrigeration dehumidification of a front surface air cooler of a dehumidification system, the water storage tank is shallowly buried underground, heat insulation and cold accumulation are achieved through a shallow soil source, the water tank is provided with a water level meter and is in linkage with a circulating water pump through a controller, and the condensate water exchanges heat with air supply sensible heat through a condensing coil. Organized discharge and collection can be used as water replenishment of the cooling tower through the drainage pipe; the middle surface air cooler and the rear surface air cooler are interlocked and started through temperature sensors and electric valves. The energy utilization rate is effectively improved, and energy waste caused by cold-heat offset is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air processing power equipment, and in particular relates to a system for regulating the sensible heat load of a rotary dehumidifier by coupling air-conditioning condensed water with a shallow soil source. Background Art

[0002] The core component of the rotary dehumidifier is a honeycomb rotor, which is composed of a special ceramic fiber carrier and active silica gel. Special sealing devices are used on both sides of the rotor to divide it into two areas: a treatment area and a regeneration area. When the humid air that needs to be dehumidified passes through the treatment area of ​​the rotor, the water vapor of the humid air is adsorbed by the active silica gel of the rotor, and the dry air is sent to the space that needs to be treated by the treatment fan. The slowly rotating rotor carries the saturated water vapor into the regeneration area. The high-temperature air blown in the regeneration area in the opposite direction causes the moisture adsorbed in the rotor to be desorbed and discharged to the outside by the fan, thereby restoring the moisture absorption capacity of the rotor and becoming a regeneration process. The rotor rotates continuously, and the above-mentioned dehumidification and regeneration are repeated in a cycle, thereby ensuring the dehumidification state of the dehumidifier to be maintained continuously and stably.

[0003] The utility model patent with publication number CN203797834U discloses a dual-rotor dehumidifier, which includes an air valve, a primary filter and a first front surface cooler connected in sequence, and also includes a first rotor and a second rotor. The first rotor is divided into a first regeneration zone and a first treatment zone, and the second rotor is divided into a second regeneration zone, a second treatment zone and a pre-cooling zone; the air after the first front surface cooler enters the first treatment zone of the first rotor, the treatment fan, the second front surface cooler, the second treatment zone of the second rotor, the rear surface cooler, the medium efficiency filter to the workroom in sequence; the passage between the second front surface cooler and the second rotor passes through the pre-cooling zone through a branch, and the outlet of the pre-cooling zone passes through the first regeneration heater, the second regeneration zone, the first regeneration fan, the second regeneration heater, the first regeneration zone of the first rotor to the second regeneration fan in sequence through the first branch pipe.

[0004] In the summer operation mode of the rotary dehumidifier, the front-surface cold refrigeration dehumidification will produce condensation water. The lithium battery process workshop with high dehumidification requirements can produce a large amount of condensation water. According to relevant research, 1KW cooling load can produce 0.63kg of condensation water; the condensation water of the dehumidifier is not recycled and discharged in an unorganized manner, resulting in energy waste.

[0005] When the outdoor ambient temperature is 35℃ and the wet-bulb temperature is 28℃, the air conditioning chilled water is supplied at 7℃ and returned at 12℃; the temperature of the generated condensed water is generally between 13~18℃; at this time, the supply air temperature after the first-stage dehumidification wheel can usually reach about 25℃. There is great potential to use air conditioning condensed water to regulate this part of the sensible heat load.

[0006] Underground soil is a renewable energy source with cold storage and heat insulation properties. The soil temperature at a depth of 15m underground remains stable at around 17°C throughout the year. This can effectively avoid cooling losses caused by solar radiation heat and high ambient temperature in the power equipment area. Utility Model Content

[0007] In order to overcome the problems existing in the prior art, the utility model provides a system for regulating the sensible heat load of a rotary dehumidifier. The system utilizes air-conditioning condensed water coupled with a shallow soil source to regulate the sensible heat load of the rotary dehumidifier, thereby solving the problem of cold and heat offset caused by freezing dehumidification and adsorption dehumidification in the power zone rotary dehumidifier, and wasting the cold source load; and efficiently utilizes the surplus value of condensed water generated by freezing dehumidification.

[0008] In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

[0009] A system for regulating the sensible heat load of a rotary dehumidifier includes a rotary dehumidification system and a condensate recovery system. The condensate recovery system is mainly composed of a condensate accumulation pan, a storage water tank, a condensate pump, a liquid level meter and a controller; the liquid level meter and the condensate pump are arranged in the storage water tank, and the controller is electrically connected to the liquid level meter and the condensate pump; the storage water tank is shallowly buried underground and connected to the condensate accumulation pan.

[0010] Underground soil sources are renewable energy sources with cold storage and heat insulation properties, which can effectively avoid the loss of cooling capacity due to solar radiation heat and high ambient temperature in the power equipment area.

[0011] Furthermore, the rotary dehumidification system mainly includes a filter, a front surface cooler, a first rotor, a first fan, a medium efficiency filter, a second fan, a middle surface cooler, a second rotor, a rear surface cooler, an electric heater and a high efficiency filter connected in sequence; a first electric valve is provided on the middle surface cooler, and a second electric valve is provided on the rear surface cooler.

[0012] Furthermore, the condensed water recovery system also includes first and second temperature sensors and first and second condensing coils.

[0013] The storage water tank recovers and stores the condensed water generated by the front surface cooler's freezing and dehumidification through the condensed water accumulation pan. The liquid level meter transmits the liquid level information in the storage water tank to the controller. The controller controls the start and stop of the condensed water pump, and the condensed water pump acts on the condensed water in the storage water tank. After the condensed water exchanges sensible heat with the supply air through the first and second condensing coils, it is discharged and collected in an organized manner through a drain pipe and can be used for cooling tower water replenishment. The first electric valve is interlocked with the first temperature sensor to start, and the second electric valve is interlocked with the second temperature sensor to start.

[0014] By adopting the above technical solution, the utility model has the following beneficial effects:

[0015] The underground soil source is a renewable energy source with the characteristics of cold storage and heat insulation. The soil temperature at a depth of 15m underground is stable at around 17°C throughout the year. It can effectively avoid the loss of cooling capacity due to solar radiation heat and the high ambient temperature in the power equipment area. It can effectively save the equipment layout area in the power area. It can also "shift peaks and fill valleys". At night, the condensed water at the valley electricity price is stored in the water tank using the underground soil source constant temperature layer for insulation. At the peak electricity price, the condensed water is recycled and used to adjust the sensible heat load of the runner through the condensing coil.

[0016] The utility model recycles and utilizes waste heat from condensed water coupled with shallow soil sources, effectively avoiding the waste of cold sources in the cold water system caused by the hot and cold offset of the rotary dehumidifier, and realizing "peak shifting and valley filling" to save electricity costs and sustainable green development. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the system for regulating the sensible heat load of the rotary dehumidifier of the present invention;

[0018] In the figure: 1. Filter; 2. Front surface cooler; 301. First fan; 302. Second fan; 4. Medium efficiency filter; 501. First electric valve; 502. Second electric valve; 601. First temperature sensor; 602. Second temperature sensor; 701. First condensing coil; 702. Second condensing coil; 8. Middle surface cooler; 9. Electric heater; 10. High efficiency filter; 1101. First rotor; 1102. Second rotor; 12. Water storage tank; 13. Condensate pump; 14. Controller; 15. Liquid level meter; 16. Drain pipe; 17. Rear surface cooler; 18. Water collection tray. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] See also Figure 1As shown, a system for regulating the sensible heat load of a rotary dehumidifier includes a rotary dehumidification system, which mainly includes a filter 1, a front surface cooler 2, a first rotor 1101, a first fan 301, a medium-efficiency filter 4, a second fan 302, a middle surface cooler 8, a second rotor 1102, a rear surface cooler 17, an electric heater 9 and a high-efficiency filter 10 connected in sequence; the middle surface cooler 8 is provided with a first electric valve 501, and the rear surface cooler 17 is provided with a second electric valve 502; it also includes a condensate recovery system, which mainly consists of a condensate accumulation pan 18, a storage water tank 12, a condensate pump 13, a liquid level meter 15, a controller 14, first and second temperature sensors 601, 602 and first and second condensation coils 701, 702; the storage water tank 12 is buried shallowly at a depth of 15 meters underground, and uses soil insulation to store cold. The storage water tank 12 recovers and stores the condensed water generated by the freezing and dehumidification of the front surface cooler 2 through the condensed water accumulation tray 18. The liquid level meter 15 transmits the liquid level information in the storage water tank 12 to the controller 14. The controller 14 controls the start and stop of the condensed water pump 13. The condensed water pump 13 acts on the condensed water in the storage water tank 12. The condensed water exchanges sensible heat with the supply air through the first and second condensing coils 701 and 702, and is then discharged through a drain pipe 16. The first electric valve 501 is interlocked with the first temperature sensor 601 to start, and the second electric valve 502 is interlocked with the second temperature sensor 602 to start.

[0022] The volume of the storage water tank should be calculated based on the cooling load after the rotary dehumidifier is installed. This volume should be tailored to the dew point requirements of different workshops and the different outdoor ambient parameters (an overly large storage water tank increases project costs, while a small tank results in frequent water circulation starts and stops). The volume of condensed water generated during off-peak electricity price periods should be determined, ensuring that condensed water circulates continuously for at least five hours during peak electricity prices.

[0023] Furthermore, the first condensing coil 701 is located at the front end of the middle surface cooler 8, and the second condensing coil 702 is located at the front end of the rear surface cooler 17; the first temperature sensor 601 is located at the inlet of the second rotor 1102, and the temperature of the first temperature sensor 601 is set to T1±3°C according to the rotor dehumidification requirement; the second temperature sensor 602 is located at the end air outlet, and the temperature of the second temperature sensor 602 is set to T2±3°C according to the rotor dehumidification requirement.

[0024] The start and stop of the chilled water in the middle and rear surface coolers 8 and 17 are fed back by the temperature sensor signal. When the temperature is lower than the set value T1±3℃ and T2±3℃, the electric valve of the chilled water pipe is closed.

[0025] Through this technical solution, condensed water is preferentially used to reduce the adsorption dehumidification temperature, and the chilled water systems of the middle and rear surface coolers 8 and 17 are used as auxiliary cold sources to ensure the dehumidification effect of the rotary wheel and the temperature requirements of the process workshop.

[0026] The working principle of this embodiment is as follows:

[0027] During the cooling and dehumidification season, the outdoor fresh air passes through the filter 1 and is frozen and dehumidified by the front surface cooler 2 to produce condensed water, which is collected by the water accumulation tray 18 and stored in the storage water tank 12 buried 15m underground, and is insulated and cooled by the soil source; the condensed water pump 13 receives the feedback signal from the liquid level meter 15 to start, and reduces the supply air temperature through the condensing coil 7; the chilled water of the middle surface cooler 8 and the rear surface cooler 17 is started through the first and second temperature sensors 601, 602 and the first and second electric valves 501, 502; when the temperature is higher than the set value, the electric valve of the chilled water pipe opens to adjust the water flow; it can also be used to "shift the peak and fill the valley" according to the electricity price. At night, the valley electricity price condensed water is stored in a certain amount in the storage water tank, and the underground soil source constant temperature layer is used to insulate and cool. During peak electricity prices, the condensed water is recycled and used to adjust the sensible heat load of the rotor through the condensing coil 7.

[0028] In the present invention, the term "plurality" refers to two or more than two, unless otherwise expressly defined. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "installation", "connection", "connection", and "fixed" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A system for regulating the sensible heat load of a rotary dehumidifier, comprising a rotary dehumidifier system, characterized in that: It also includes a condensate recovery system, which includes a condensate water storage pan (18), a storage water tank (12), a condensate pump (13), a liquid level meter (15) and a controller (14); The liquid level meter (15) and the condensate water pump (13) are arranged in the storage water tank (12), and the controller (14) is electrically connected to the liquid level meter (15) and the condensate water pump (13); The storage water tank (12) is buried underground and connected to the condensed water accumulation tray (18).

2. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 1, characterized in that: The rotary dehumidification system mainly comprises a filter (1), a front surface cooler (2), a first rotary wheel (1101), a first fan (301), a medium efficiency filter (4), a second fan (302), a middle surface cooler (8), a second rotary wheel (1102), a rear surface cooler (17), an electric heater (9) and a high efficiency filter (10) connected in sequence; The middle surface cooler (8) is provided with a first electric valve (501), and the rear surface cooler (17) is provided with a second electric valve (502).

3. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 2, characterized in that: The condensed water recovery system further comprises a first temperature sensor (601), a second temperature sensor (602), a first condensing coil (701), and a second condensing coil (702); The first electric valve (501) is interlocked with the first temperature sensor (601) and started, and the second electric valve (502) is interlocked with the second temperature sensor (602) and started.

4. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The first condensing coil (701) is located at the front end of the intermediate cooler (8).

5. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The second condensing coil (702) is located at the front end of the rear surface cooler (17).

6. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The first temperature sensor (601) is located at the entrance of the second rotating wheel (1102).

7. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The temperature of the first temperature sensor (601) is set to T1±3°C according to the dehumidification requirements of the rotary wheel.

8. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The second temperature sensor (602) is located at the end air outlet.

9. The system for controlling the sensible heat load of a rotary dehumidifier according to claim 3, characterized in that: The temperature of the second temperature sensor (602) is set to T2±3°C according to the dehumidification requirements of the rotary wheel.

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