CN218993542U - Split type solution dehumidification cooling unit with double heat source drive - Google Patents
Split type solution dehumidification cooling unit with double heat source drive Download PDFInfo
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- CN218993542U CN218993542U CN202222550538.2U CN202222550538U CN218993542U CN 218993542 U CN218993542 U CN 218993542U CN 202222550538 U CN202222550538 U CN 202222550538U CN 218993542 U CN218993542 U CN 218993542U
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Abstract
The utility model discloses a split solution dehumidifying and cooling unit with double heat source drive, wherein one side of a solar heat collecting device is connected with a solution heat exchanger through a waste heat collecting device, the other end of the solution heat exchanger is connected with a solution regenerator, a concentrated solution tank is arranged below the solution regenerator, and one side of the concentrated solution tank is connected with a heat exchanger; one side of the heat exchanger is connected with a solution dehumidifier, one side of the solution dehumidifier is provided with a dew point indirect evaporative cooler, one side of the dew point indirect evaporative cooler is provided with a cooling tower, and a water supply tank is arranged below the cooling tower; the utility model has the advantages that the solution dehumidification technology is combined with the dew point indirect evaporation technology, the natural cold source is fully and efficiently utilized, the energy cost for cooling is greatly reduced, the energy is saved, the environment is protected, and the practicability is very strong.
Description
Technical Field
The utility model relates to the technical field of solution dehumidification modes, in particular to a split solution dehumidification cooling unit driven by double heat sources.
Background
The solution dehumidification mode is different from the traditional condensation dehumidification mode, adopts salt solution with moisture absorption property as a working medium, and carries out heat and mass transfer through direct contact of fresh air and the solution, thereby realizing the cooling dehumidification process of the fresh air. The solution dehumidification mode can efficiently meet the air humidity treatment requirement, reheating is not needed any more, and various low-temperature heat sources can be adopted as energy sources for solution concentration and regeneration, so that the solution dehumidification mode has been widely applied in China in recent years due to the advantages of saving energy sources, improving indoor air quality and the like.
The solution regeneration process is a key process of the solution dehumidification air conditioning system, and the heat and mass exchange process directly affects the performance of the whole air conditioning system. The regeneration air and the solution are used for directly contacting heat and mass transfer, so that a common solution regeneration mode is adopted, and the common regeneration air comprises outdoor fresh air and indoor exhaust air.
The indirect evaporative cooling air conditioning technology takes the evaporation of water as a cooling means, utilizes working airflow to cool fresh air, and prepares cold air through indirect contact of air and water. The technology has been widely used in northwest low-humidity environments.
In the southeast coastal region of China, because the relative humidity of the air is high, the air is limited by outdoor weather conditions, and the dew point evaporative cooling technology can only reduce the air to the dew point temperature, and has a certain difference from the actual temperature required by the tail end of a unit. Therefore, the prior art needs to be innovated, the final outlet water temperature reaches the requirement, and a foundation is laid for energy conservation and consumption reduction of the unit.
Disclosure of Invention
Aiming at the defects of the existing evaporative cooling water chilling unit, the utility model aims to provide the split solution dehumidifying and cooling unit with double heat source drive, which can fully utilize different outdoor weather conditions and selectively start different working modes so as to meet the production process requirements and reform the production environment.
In order to achieve the above object, the present utility model adopts the following technical scheme: the utility model provides a split type solution dehumidification cooling unit with two heat source drive, includes solar collector, and its technical essential is:
one side of the solar heat collection device is connected with a solution heat exchanger through a waste heat collection device, the other end of the solution heat exchanger is connected with a solution regenerator, a concentrated solution tank is arranged below the solution regenerator, and one side of the concentrated solution tank is connected with the heat exchanger;
one side of the heat exchanger is connected with a solution dehumidifier, a solution tank is arranged below the solution dehumidifier, one side of the solution dehumidifier is provided with a dew point indirect evaporative cooler, one side of the dew point indirect evaporative cooler is provided with a cooling tower, and a water supply tank is arranged below the cooling tower;
exhaust fans are arranged above the dew point indirect evaporative cooler and the cooling tower.
Preferably, the driving force required for solution regeneration in the solution regenerator is provided by a solar heat collector and a waste heat collector.
Preferably, the solution regenerator both ends are equipped with air intake and air outlet respectively, and the air intake is provided with the filter for filter the air, and air outlet department is provided with the exhaust fan, and the air after the work is discharged under the effect of exhaust fan.
Preferably, a filter is arranged at the front end of the solution dehumidifier, outdoor air or dry return air enters the solution dehumidifier through the filter, the solution dehumidifier is opened according to the air inlet state as required, and the dehumidified air enters the dew point indirect evaporative cooler.
The utility model has the advantages that: the utility model protects a split solution dehumidifying and cooling unit with double heat source drive, wherein the solution regenerator and the dehumidifier are arranged in a split mode, the solution regenerator can be flexibly and conveniently arranged according to the actual situation of the site, the heat source of the solution regenerator is double heat sources, the solar heat collector can be used when the solar light is in use, the waste heat source can fully and efficiently utilize waste heat resources, and energy is provided for solution regeneration through the double heat sources; the utility model combines the solution dehumidification technology with the dew point indirect evaporation technology, fully and efficiently utilizes the natural cold source, greatly reduces the energy cost for cooling, saves energy and protects environment, and has strong practicability.
Drawings
FIG. 1 is a schematic diagram of a split solution dehumidifying cooling unit with dual heat source drive;
the reference numerals are as follows: 1. the solar heat collection device 2, the waste heat collection device 3, the electric regulating valve 4, the water pump 5, the filter 6, the solution heat exchanger 7, the solution regenerator 8, the solution pump 9, the heat exchanger 10, the solution tank 11, the exhaust fan 12, the solution dehumidifier 13, the dew point indirect evaporative cooler 14, the tap water tank 15, the tap water pump 16, the cooling tower 17, the water supply tank 18 and the concentrated solution tank.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
As shown in fig. 1, the utility model provides a split solution dehumidifying dew-point evaporative cooling water chilling unit with double heat source drive, which comprises a solar heat collecting device 1, a waste heat collecting device 2, a plurality of electric regulating valves 3, a plurality of water pumps 4, two filters 5, a solution heat exchanger 6, a solution regenerator 7, a solution pump 8, a heat exchanger 9, a solution tank 10, three exhaust fans 11, a solution dehumidifier 12, a dew-point indirect evaporative cooler 13, a tap water tank 14, a tap water pump 15, a cooling tower 16, a water supply tank 17 and a concentrated solution tank 18;
in the application, one side of the solar heat collector 1 is connected with a solution heat exchanger 6 through a waste heat collector 2, the other end of the solution heat exchanger 6 is connected with a solution regenerator 7, two ends of the solution regenerator 7 are respectively provided with an air inlet and an air outlet, the air inlet is provided with a filter 5 for filtering air, the air outlet is provided with an exhaust fan, and the air after working is exhausted under the action of the exhaust fan; a concentrated solution tank 18 is arranged below the solution regenerator 7, one side of the concentrated solution tank 18 is connected with a heat exchanger 9, one side of the heat exchanger 9 is connected with a solution dehumidifier 12, a solution tank 10 is arranged below the solution dehumidifier 12, a filter 5 is arranged at the front end of the solution dehumidifier 12, outdoor air or dry return air enters the solution dehumidifier 12 through the filter 5, the solution dehumidifier 12 is opened according to the air inlet state as required, the dehumidified air enters a dew-point indirect evaporative cooler 13, one side of the solution dehumidifier 12 is provided with a dew-point indirect evaporative cooler 13, one side of the dew-point indirect evaporative cooler 13 is provided with a cooling tower 16, and a water supply tank 17 is arranged below the cooling tower 16; the exhaust fan 11 is arranged above the dew point indirect evaporative cooler 13 and the cooling tower 16.
The utility model provides a split solution dehumidifying dew point evaporative cooling water chilling unit with double heat source drive, which has the following working principle:
the split solution dehumidifying dew point evaporative cooling water chilling unit with double heat source drive comprises solution circulation, air circulation and water circulation;
the solution circulation process is as follows:
when the solution dehumidifier 12 is started, the solution in the solution tank 10 is regulated and controlled by the electric regulating valve 3 under the action of the solution pump 8, the water in the air is absorbed into the solution by means of partial pressure difference with water vapor in the air, the solution state is changed from concentrated solution into dilute solution, the dilute solution falls into the solution tank 10, and returns to the concentrated solution tank 18 under the action of the electric regulating valve 3;
the low-temperature dilute solution from the solution dehumidifier 12 exchanges heat with the solution with higher temperature just exiting the solution tank 10 through the heat exchanger 9, and the temperature of the solution is reduced to enable the solution to reach a proper working temperature;
the driving force required by solution regeneration in the solution regenerator 7 is provided by the solar heat collector 1 and the waste heat collector 2, solar energy is fully and efficiently utilized for heating when solar illumination exists according to local climatic conditions, and the waste heat collector is utilized for heating the solution under the regulation and control of the electric regulating valve 3 in overcast and rainy days through the recycling of waste heat; the regenerated solution falls into a concentrated solution tank 18, and is cooled with low-temperature dilute solution in a heat exchanger 9 under the action of an electric regulating valve 3 and then is sent into a solution tank 10 of a solution dehumidifier;
the two ends of the solution regenerator 7 are respectively provided with an air inlet and an air outlet, the air inlet is provided with a filter 5 for filtering air, and the air after working is discharged under the action of an exhaust fan 11;
in this application, the air circulation process is as follows:
the outdoor air or the dry return air enters a solution dehumidifier 12 through a filter 5, the solution dehumidifier 12 is opened according to the air inlet state and the dehumidified air enters a dew point indirect evaporative cooler 13;
in the dew point indirect evaporative cooler 13, a part of air enters a dry channel without along-path small holes for cooling and then enters a cooling tower 16; the other part enters a wet channel with a small along-path hole at the lower part, the part of ambient air is continuously reduced along the path, and the ambient air enters the wet channel of the dew point indirect evaporative cooler along a Cheng Xiaokong channel to carry out the evaporative cooling heat exchange process, and is finally discharged under the action of an exhaust fan 11 arranged at the upper part of the dew point evaporative cooler;
the air of the dry channel in the dew point indirect evaporative cooler 13 enters the cooling tower 16 after the evaporative cooling heat exchange process, the return water of the unit is cooled, and then is discharged under the action of the exhaust fan 11 at the upper part of the cooling tower, so that the circulation is completed.
In this application, the water circulation process is as follows:
in the dew point indirect evaporative cooler 13, tap water for cooling air in a wet channel performs a spraying function on the wet channel under the action of the water pump 3, and when spraying water is insufficient, the water supplementing operation is performed through the electric regulating valve 3;
the unit backwater passes through the solution tank 10 at first, when the heat exchanger 9 is insufficient for cooling the concentrated solution, the low-temperature unit backwater cools the solution in the solution tank 10 under the regulation and control of the electric regulating valve 3; when the solution does not need to be cooled, namely the solution meets the temperature required by the work, or the solution dehumidifier 12 is not started, the unit backwater directly enters the cooling tower (16) from the bypass pipe through the electric regulating valve 3;
in the cooling tower 16, the return water of the unit exchanges heat with the air subjected to cooling and dehumidification, and after the temperature is reduced to a proper temperature, the return water falls into the water supply tank 17, and water is supplied to the unit through the water pump 4 and the electric regulating valve 3.
Compared with the existing dew point type indirect evaporative cooling unit, the split solution dehumidifying cooling unit with double heat source drive has the advantages that the solution regenerator and the dehumidifier are arranged in a split mode, the solution regenerator can be installed flexibly and conveniently according to the actual condition of the site, the heat source of the solution regenerator is double heat sources, the solar heat collector can be used when sunlight is available, waste heat sources can be fully and efficiently utilized, and energy is provided for solution regeneration through the double heat sources.
When a heat source exists, the solution is regenerated, the concentrated solution is stored in a solution tank and is conveyed to the solution tank in the solution dehumidifier as required, and compared with the traditional solution dehumidifier, the split type solution dehumidifier and the solution regenerator are provided with a heat exchanger between them, and the heat exchanger is used for cooling the regenerated concentrated solution with higher temperature by low-temperature dilute solution, so that the heat exchanger is a means for recovering waste heat.
The solution regenerator and the dehumidifier are arranged separately, so that the actual size of the unit can be effectively reduced, and the area of a machine room is reduced. The solution dehumidifier is added before the dew point indirect evaporative cooler, so that the solution dehumidifier can be started as required, the moisture content of air is reduced, and the air outlet temperature of the dew point evaporative cooler can be reduced in southeast coastal areas, thereby reducing the final outlet temperature and improving the practicability and application range of the unit.
The unit backwater can be cooled according to whether the actual demand enters a solution tank in the solution dehumidifier to enable the solution to reach the working temperature, the water supply temperature required by the unit backwater is higher than that required by the unit, but the working temperature required by the solution dehumidification is lower, the part of cold water is used for cooling the regenerated solution, the heat in the part of backwater can be well utilized, and the cooling device also has a beneficial effect on a precooling process of the unit backwater and a direct evaporative cooling process in a subsequent cooling tower.
There are many ways in which the utility model may be embodied, and the above description is only of a preferred embodiment of the utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (4)
1. The utility model provides a split type solution dehumidification cooling unit with two heat source drive, includes solar collector (1), its characterized in that:
one side of the solar heat collection device (1) is connected with a solution heat exchanger (6) through the waste heat collection device (2), the other end of the solution heat exchanger (6) is connected with a solution regenerator (7), a concentrated solution tank (18) is arranged below the solution regenerator (7), and one side of the concentrated solution tank (18) is connected with a heat exchanger (9);
one side of the heat exchanger (9) is connected with a solution dehumidifier (12), a solution tank (10) is arranged below the solution dehumidifier (12), one side of the solution dehumidifier (12) is provided with a dew point indirect evaporative cooler (13), one side of the dew point indirect evaporative cooler (13) is provided with a cooling tower (16), and a water supply tank (17) is arranged below the cooling tower (16);
and exhaust fans (11) are arranged above the dew point indirect evaporative cooler (13) and the cooling tower (16).
2. The split solution dehumidifying and cooling unit with dual heat source drive of claim 1, wherein:
the driving force required by the solution regeneration in the solution regenerator (7) is provided by the solar heat collection device (1) and the waste heat collection device (2).
3. The split solution dehumidifying and cooling unit with dual heat source drive of claim 2, wherein:
the solution regenerator (7) both ends are equipped with air intake and air outlet respectively, and the air intake is provided with filter (5) for filter the air, air outlet department is provided with the exhaust fan, and the air after the work is discharged under the effect of exhaust fan.
4. The split solution dehumidifying and cooling unit with dual heat source drive of claim 1, wherein:
the front end of the solution dehumidifier (12) is provided with a filter (5), outdoor air or dry return air enters the solution dehumidifier (12) through the filter (5), the solution dehumidifier (12) is opened according to the air inlet state as required, and the dehumidified air enters the dew point indirect evaporative cooler (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222550538.2U CN218993542U (en) | 2022-09-26 | 2022-09-26 | Split type solution dehumidification cooling unit with double heat source drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222550538.2U CN218993542U (en) | 2022-09-26 | 2022-09-26 | Split type solution dehumidification cooling unit with double heat source drive |
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| CN218993542U true CN218993542U (en) | 2023-05-09 |
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| CN202222550538.2U Active CN218993542U (en) | 2022-09-26 | 2022-09-26 | Split type solution dehumidification cooling unit with double heat source drive |
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- 2022-09-26 CN CN202222550538.2U patent/CN218993542U/en active Active
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