Self-adaptive expansion compensation moisture absorption solution cooling tower water saving system

Abstract

The utility model discloses a moisture absorption solution cooling tower water saving system with self-adaptive expansion compensation. The system comprises a heat source to be cooled; an air inlet, an air outlet, a liquid supplementing opening, an overflow opening and a liquid outlet are formed in the cooling tower, a liquid collecting space is formed in the bottom in the cooling tower, and the liquid supplementing opening, the overflow opening and the liquid outlet are communicated with the liquid collecting space; gas entering from the air inlet is suitable for penetrating through the heat exchange filler to be discharged from the air outlet; the solution distribution device is arranged in the cooling tower and is suitable for spraying a moisture absorption solution to the heat exchange filler; the liquid inlet pipe is respectively connected with the solution distribution device and a heat source to be cooled; the liquid outlet pipe is respectively connected with the liquid outlet and a heat source to be cooled; a liquid storage tank; the liquid supplementing pipe is respectively connected with the liquid supplementing opening and the liquid storage tank; the overflow pipe is respectively connected with the overflow port and the liquid storage tank; the liquid level detection device is arranged in the cooling tower; the liquid supplementing on-off valve is connected to the liquid supplementing pipe and electrically connected with the liquid level detection device; and the overflow on-off valve is connected to the overflow pipe and is electrically connected with the liquid level detection device. The moisture absorption solution cooling tower water-saving system with the self-adaptive expansion compensation function can adapt to the volume change of the moisture absorption solution, and has the advantages of being good in water-saving effect, high in anti-freezing capacity, good in applicability, low in cost, high in heat exchange efficiency, reliable and stable in operation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a self-adaptive expansion-compensated moisture-absorbing solution cooling tower water-saving system. Background Art

[0002] The heat exchange equipment in the related technology uses water as the cooling medium. On the one hand, water is prone to freezing in a low temperature environment, affecting the heat exchange efficiency and even causing equipment damage. On the other hand, the evaporation loss of water during operation is large, which is not suitable for areas with water shortages. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a self-adaptive expansion-compensated hygroscopic solution cooling tower water-saving system, which can adapt to the volume change of the hygroscopic solution, has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency, reliable and stable operation, etc.

[0004] To achieve the above-mentioned purpose, according to an embodiment of the utility model, a self-adaptive expansion-compensated hygroscopic solution cooling tower water-saving system is proposed, and the self-adaptive expansion-compensated hygroscopic solution cooling tower water-saving system comprises: a heat source to be cooled; a cooling tower, the cooling tower is provided with an air inlet, an air outlet, a liquid replenishment port, an overflow port and a liquid outlet, the bottom of the cooling tower has a liquid collecting space, the liquid replenishment port, the overflow port and the liquid outlet are connected to the liquid collecting space; a heat exchange filler, the heat exchange filler is arranged in the cooling tower, and the gas entering the air inlet is suitable for passing through the heat exchange filler and being discharged from the air outlet; a solution dispensing device, the solution dispensing device is arranged in the cooling tower and is suitable for spraying the hygroscopic solution onto the heat exchange filler, and the liquid collecting space is suitable for collecting the hygroscopic solution discharged from the heat exchange filler the hygroscopic solution; a liquid inlet pipe, the liquid inlet pipe is respectively connected to the solution dispensing device and the heat source to be cooled; a liquid outlet pipe, the liquid outlet pipe is respectively connected to the liquid outlet and the heat source to be cooled; a liquid storage tank, the liquid storage tank is suitable for storing the hygroscopic solution; a liquid replenishment pipe, the liquid replenishment pipe is respectively connected to the liquid replenishment port and the liquid storage tank; an overflow pipe, the overflow pipe is respectively connected to the overflow port and the liquid storage tank; a liquid level detection device, the liquid level detection device is arranged in the cooling tower and is suitable for detecting the liquid level of the hygroscopic solution in the cooling tower; a liquid replenishment on-off valve, the liquid replenishment on-off valve is connected to the liquid replenishment pipe and is electrically connected to the liquid level detection device; an overflow shut-off valve, the overflow shut-off valve is connected to the overflow pipe and is electrically connected to the liquid level detection device.

[0005] The water-saving system of the hygroscopic solution cooling tower with adaptive expansion compensation according to the embodiment of the utility model can adapt to the volume change of the hygroscopic solution, and has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency, and reliable and stable operation.

[0006] In addition, the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to an embodiment of the present utility model, the solution dispensing device is arranged above the heat exchange filler.

[0008] According to an embodiment of the utility model, the air inlet is located on the peripheral wall of the cooling tower and between the heat exchange filler and the liquid collecting space in the up and down directions, and the air outlet is located on the top wall of the cooling tower.

[0009] According to an embodiment of the utility model, the liquid storage tank is connected to a solution replenishing tube which is in communication with a hygroscopic solution source.

[0010] According to an embodiment of the utility model, a liquid inlet on-off valve is connected to the liquid inlet pipe.

[0011] According to an embodiment of the present utility model, the liquid level detection device is a float type liquid level detection device.

[0012] According to an embodiment of the utility model, a solution driving device is connected to the liquid outlet pipe.

[0013] According to an embodiment of the utility model, the air outlet is connected to a fan.

[0014] According to an embodiment of the utility model, a filtering device is connected to the liquid outlet pipe.

[0015] According to an embodiment of the utility model, the liquid replenishing pipe and the overflow pipe are both connected to a water meter, the liquid inlet pipe is connected to a flow meter, and the liquid outlet pipe is connected to a pressure gauge.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of a water-saving system for a hygroscopic solution cooling tower with adaptive expansion compensation according to an embodiment of the utility model.

[0019] Figure numerals: Adaptive expansion compensated hygroscopic solution cooling tower water-saving system 1, heat source to be cooled 10, cooling tower 20, air inlet 21, air outlet 22, liquid replenishment port 23, overflow port 24, liquid outlet 25, liquid collecting space 26, fan 27, heat exchange filler 30, solution distribution device 40, liquid inlet pipe 51, liquid outlet pipe 52, liquid storage tank 60, solution replenishment pipe 61, liquid replenishment pipe 71, overflow pipe 72, liquid level detection device 80, liquid replenishment on-off valve 91, overflow on-off valve 92, liquid inlet on-off valve 100, solution driving device 110, filtering device 120, water meter 131, flow meter 132, pressure gauge 133. DETAILED DESCRIPTION

[0020] This application is based on the inventor's discovery and understanding of the following facts and problems:

[0021] The heat exchange equipment in the related technology uses water as the cooling medium. On the one hand, water is prone to freezing in a low temperature environment, affecting the heat exchange efficiency and even causing equipment damage. On the other hand, the evaporation loss of water during operation is large, which is not suitable for areas with water shortages.

[0022] In addition, since direct contact between air and water will further increase the evaporation rate of water, the heat exchange equipment in the related technology adopts an indirect contact heat transfer method, which affects the heat exchange efficiency.

[0023] For this reason, some heat exchange equipment uses hygroscopic solution as the cooling medium. When the ambient humidity is high, the volume of the hygroscopic solution will change when it absorbs water. When the ambient temperature changes, the volume of the hygroscopic solution will also change due to the principle of thermal expansion and contraction. Excessive expansion or contraction of the volume of the hygroscopic solution will affect the reliable operation of the circulation system.

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following describes a water-saving system 1 for a hygroscopic solution cooling tower with adaptive expansion compensation according to an embodiment of the utility model with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the adaptive expansion compensated hygroscopic solution cooling tower water-saving system 1 according to the embodiment of the utility model includes a heat source to be cooled 10, a cooling tower 20, a heat exchange filler 30, a solution distribution device 40, a liquid inlet pipe 51, a liquid outlet pipe 52, a liquid storage tank 60, a liquid replenishment pipe 71, an overflow pipe 72, a liquid level detection device 80, a liquid replenishment on-off valve 91 and an overflow on-off valve 92.

[0029] The cooling tower 20 is provided with an air inlet 21, an air outlet 22, a liquid replenishment port 23, an overflow port 24 and a liquid outlet 25. The bottom of the cooling tower 20 has a liquid collection space 26 (the up and down directions are shown by arrows in the figure), and the liquid replenishment port 23, the overflow port 24 and the liquid outlet 25 are connected to the liquid collection space 26. The heat exchange filler 30 is arranged in the cooling tower 20, and the gas entering the air inlet 21 is suitable for passing through the heat exchange filler 30 and being discharged from the air outlet 22. The solution distribution device 40 is arranged in the cooling tower 20 and is suitable for spraying a hygroscopic solution on the heat exchange filler 30, and the liquid collection space 26 is suitable for collecting the hygroscopic solution discharged from the heat exchange filler 30. The liquid inlet pipe 51 is respectively connected to the solution distribution device 40 and the heat source 10 to be cooled. The liquid outlet pipe 52 is respectively connected to the liquid outlet 25 and the heat source 10 to be cooled. The liquid storage tank 60 is suitable for storing the hygroscopic solution. The liquid replenishment pipe 71 is respectively connected to the liquid replenishment port 23 and the liquid storage tank 60. The overflow pipe 72 is connected to the overflow port 24 and the liquid storage tank 60 respectively. The liquid level detection device 80 is arranged in the cooling tower 20 and is suitable for detecting the liquid level of the hygroscopic solution in the cooling tower 20. The liquid replenishment on-off valve 91 is connected to the liquid replenishment pipe 71 and is electrically connected to the liquid level detection device 80. The overflow on-off valve 92 is connected to the overflow pipe 72 and is electrically connected to the liquid level detection device 80.

[0030] It should be understood here that the hygroscopic solution is a solution that can absorb moisture, such as a halide solution, specifically a metal halide solution, such as a calcium chloride solution, a lithium bromide solution or a lithium chloride solution. The heat exchange filler 30 can be a three-dimensional porous structure, such as a honeycomb structure. The hygroscopic solution can be evenly filled in the pores of the heat exchange filler 30, and when the gas entering the air inlet 21 passes through, the hygroscopic solution directly contacts the gas for heat exchange.

[0031] Specifically, the hygroscopic solution circulates between the cooling tower 20 and the heat source to be cooled 10 through the liquid inlet pipe 51 and the liquid outlet pipe 52. The hygroscopic solution exchanges heat with the heat source to be cooled 10 at the heat source to be cooled 10 and then heats up. The hot hygroscopic solution enters the cooling tower 20 through the liquid inlet pipe 51 and is sprayed on the heat exchange filler 30 through the solution distribution device 40. At the same time, cold air enters the cooling tower 20 through the air inlet 21 and passes through the heat exchange filler 30 (the air inlet direction is shown by the arrow a in the figure). The cold air and the hot hygroscopic solution are in direct contact at the heat exchange filler 30 for heat exchange. After the hot hygroscopic solution cools down, it is discharged from the heat exchange filler 30 and collected in the liquid collecting space 26. Then, it is discharged to the heat source to be cooled 10 through the liquid outlet 25 and the liquid outlet pipe 52 and exchanges heat with the heat source to be cooled 10 again. After the cold air heats up, it is discharged through the air outlet 22.

[0032] The liquid level detection device 80 detects the liquid level of the hygroscopic solution collected in the liquid collecting space 26. When the liquid level of the hygroscopic solution in the liquid collecting space 26 is too high, the overflow shut-off valve 92 is opened and the liquid replenishment on-off valve 91 is closed, so that the hygroscopic solution in the liquid collecting space 26 flows into the liquid storage tank 60 through the overflow port 24 and the overflow pipe 72 for buffering. When the liquid level of the hygroscopic solution in the liquid collecting space 26 is too low, the liquid replenishment on-off valve 91 is opened and the overflow shut-off valve 92 is closed, so that the hygroscopic solution in the liquid storage tank 60 flows into the liquid collecting space 26 through the liquid replenishment pipe 71 and the liquid replenishment port 23 to replenish the hygroscopic solution.

[0033] According to the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 of the embodiment of the utility model, by utilizing hygroscopic solution as the heat exchange medium, since the hygroscopic solution can absorb water vapor in the air and is not easy to evaporate itself, compared with the technical solution of using water as the heat exchange medium in the related technology, the evaporation of the heat exchange medium can be suppressed, and the loss of heat exchange medium caused by evaporation during the operation of the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 can be reduced, thereby achieving the purpose of saving water resources, and enabling the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 to be used in areas with a shortage of water resources. Moreover, due to the special physical properties of the hygroscopic solution, the hygroscopic solution is not easy to freeze in a cold environment, thereby improving the antifreeze ability of the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1, and can save additional antifreeze measures. The operating cost of the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 is reduced, so that the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 can be suitable for cold weather and areas.

[0034] Furthermore, by providing the heat exchange filler 30, the hygroscopic solution and the gas can directly contact and exchange heat at the heat exchange filler 30. Compared with the technical solution of using a non-contact heat exchanger in the related art, the heat exchange interface can be reduced, the heat exchange coefficient can be improved, and the heat exchange efficiency can be increased. Moreover, since the heat exchange medium uses the hygroscopic solution, the hygroscopic solution is not easy to evaporate even if it is in direct contact with the gas. Therefore, water resources can be saved while ensuring the heat exchange efficiency.

[0035] In addition, by providing a liquid storage tank 60, a liquid level detection device 80, a liquid replenishment on-off valve 91 and an overflow on-off valve 92, the liquid level detection device 80 can detect the liquid level of the hygroscopic solution in the liquid collection space 26, and when the liquid level is too high, the overflow on-off valve 92 is opened to allow the hygroscopic solution to flow into the liquid storage tank 60 for buffering, and when the liquid level is too low, the liquid replenishment on-off valve 91 is opened to allow the hygroscopic solution to flow from the liquid storage tank 60 into the liquid collection space 26 to replenish the hygroscopic solution in circulation. In this way, the liquid storage tank 60 can be used for buffering when the hygroscopic solution is excessively expanded, and the liquid storage tank 60 can be used for replenishment when the hygroscopic solution is excessively contracted, thereby avoiding the volume change of the hygroscopic solution caused by the absorption of water or the change of ambient temperature affecting the normal operation of the hygroscopic solution circulation, so that the hygroscopic solution cooling tower water-saving system 1 with adaptive expansion compensation can adapt to the volume change of the hygroscopic solution, realize the adaptive adjustment of the volume change of the hygroscopic solution, ensure the continuous and stable operation of the hygroscopic solution cooling tower water-saving system 1 with adaptive expansion compensation, and improve the operation reliability of the hygroscopic solution cooling tower water-saving system 1 with adaptive expansion compensation.

[0036] Therefore, the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 according to the embodiment of the utility model can adapt to the volume change of the hygroscopic solution, and has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency, and reliable and stable operation.

[0037] The following describes a water-saving system 1 for a hygroscopic solution cooling tower with adaptive expansion compensation according to a specific embodiment of the utility model with reference to the accompanying drawings.

[0038] In some specific embodiments of the present invention, Figure 1 As shown, the adaptive expansion compensated hygroscopic solution cooling tower water-saving system 1 according to the embodiment of the utility model includes a heat source to be cooled 10, a cooling tower 20, a heat exchange filler 30, a solution distribution device 40, a liquid inlet pipe 51, a liquid outlet pipe 52, a liquid storage tank 60, a liquid replenishment pipe 71, an overflow pipe 72, a liquid level detection device 80, a liquid replenishment on-off valve 91 and an overflow on-off valve 92.

[0039] Advantageously, if Figure 1 As shown, the solution dispensing device 40 is disposed above the heat exchange filler 30. In this way, the solution dispensing device 40 can spray the hygroscopic solution onto the heat exchange filler 30 under the action of gravity, and flow along the heat exchange filler 30 to the liquid collecting space 26 under the action of gravity, so as to facilitate the recycling of the hygroscopic solution.

[0040] More advantageously, if Figure 1 As shown, the air inlet 21 is located on the peripheral wall of the cooling tower 20 and between the heat exchange filler 30 and the liquid collecting space 26 in the vertical direction, and the air outlet 22 is located on the top wall of the cooling tower 20. This can facilitate the smooth flow of gas in and out of the cooling tower 20 and the formation of the liquid collecting space 26.

[0041] Furthermore, if Figure 1 As shown, the air outlet 22 is connected to a fan 27. In this way, the fan 27 can be used to drive the airflow, providing driving force for the airflow to pass through the air inlet 21, the heat exchange filler 30 and the air outlet 22.

[0042] Specifically, Figure 1 As shown, a solution replenishing pipe 61 connected to a hygroscopic solution source is connected to the liquid storage tank 60. In this way, when the hygroscopic solution in the liquid storage tank 60 is insufficient, the hygroscopic solution can be replenished into the liquid storage tank 60 through the solution replenishing pipe 61.

[0043] More specifically, Figure 1 As shown, a liquid inlet on-off valve 100 is connected to the liquid inlet pipe 51. In this way, the on-off of the liquid inlet pipe 51 can be controlled by the liquid inlet on-off valve 100, thereby controlling the start and stop of the moisture absorption solution circulation.

[0044] Optionally, the liquid level detection device 80 is a float type liquid level detection device, which can utilize buoyancy to detect the liquid level height of the hygroscopic solution in the liquid collecting space 26, thereby facilitating the detection of the liquid level height of the hygroscopic solution.

[0045] Figure 1 The following is a diagram showing a water-saving system 1 for a hygroscopic solution cooling tower with adaptive expansion compensation according to some examples of the present invention. Figure 1 As shown, a solution driving device 110 is connected to the liquid outlet pipe 52. Specifically, the solution driving device 110 can be a water pump. This can provide power for the circulation of the hygroscopic solution, so that the hygroscopic solution can circulate in the hygroscopic solution cooling tower water-saving system 1 with adaptive expansion compensation.

[0046] Advantageously, if Figure 1 As shown, a filter device 120 is connected to the liquid outlet pipe 52. Since the hygroscopic solution is in direct contact with the air at the heat exchange filler 30, impurities in the air will enter the hygroscopic solution, and these impurities can be filtered out by the filter device 120, which can reduce the impact of impurities on the volume of the hygroscopic solution and prevent impurities from affecting the normal operation of the system.

[0047] Alternatively, if Figure 1 As shown, the liquid replenishment pipe 71 and the overflow pipe 72 are both connected to a water meter 131, the liquid inlet pipe 51 is connected to a flow meter 132, and the liquid outlet pipe 52 is connected to a pressure gauge 133. In this way, the water meter 131, the flow meter 132 and the pressure gauge 133 can be used to monitor and record the operating status of the adaptive expansion compensation hygroscopic solution cooling tower water-saving system 1.

[0048] Other structures and operations of the adaptive expansion-compensated hygroscopic solution cooling tower water-saving system 1 according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water-saving system for hygroscopic solution cooling tower with adaptive expansion compensation, It is characterized in that include: Heat source to be cooled; A cooling tower, wherein the cooling tower is provided with an air inlet, an air outlet, a liquid replenishing port, an overflow port and a liquid outlet, and the bottom of the cooling tower has a liquid collecting space, and the liquid replenishing port, the overflow port and the liquid outlet are connected to the liquid collecting space; A heat exchange filler, wherein the heat exchange filler is arranged in the cooling tower, and the gas entering the air inlet is suitable for passing through the heat exchange filler and being discharged from the air outlet; A solution dispensing device, the solution dispensing device is arranged in the cooling tower and is suitable for spraying a moisture absorbing solution onto the heat exchange filler, and the liquid collecting space is suitable for collecting the moisture absorbing solution discharged from the heat exchange filler; A liquid inlet pipe, the liquid inlet pipe is respectively connected to the solution dispensing device and the heat source to be cooled; A liquid outlet pipe, the liquid outlet pipe is connected to the liquid outlet and the heat source to be cooled respectively; a liquid storage tank, wherein the liquid storage tank is suitable for storing the hygroscopic solution; A fluid infusion tube, the fluid infusion tube is connected to the fluid infusion port and the fluid storage tank respectively; An overflow pipe, the overflow pipe is connected to the overflow port and the liquid storage tank respectively; a liquid level detection device, the liquid level detection device being arranged in the cooling tower and being adapted to detect the liquid level of the hygroscopic solution in the cooling tower; A liquid infusion on-off valve, the liquid infusion on-off valve being connected to the liquid infusion pipe and electrically connected to the liquid level detection device; An overflow shut-off valve is connected to the overflow pipe and is electrically connected to the liquid level detection device.

2. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The solution distributing device is arranged above the heat exchange filler.

3. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The air inlet is located on the peripheral wall of the cooling tower and between the heat exchange filler and the liquid collecting space in the up and down directions, and the air outlet is located on the top wall of the cooling tower.

4. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid storage tank is connected with a solution replenishing pipe which is in communication with a moisture absorbing solution source.

5. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid inlet pipe is connected with a liquid inlet on-off valve.

6. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid level detection device is a float type liquid level detection device.

7. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid outlet pipe is connected with a solution driving device.

8. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The air outlet is connected with a fan.

9. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid outlet pipe is connected with a filtering device.

10. The adaptive expansion-compensated hygroscopic solution cooling tower water-saving system according to claim 1, It is characterized in that The liquid replenishing pipe and the overflow pipe are both connected with a water meter, the liquid inlet pipe is connected with a flow meter, and the liquid outlet pipe is connected with a pressure gauge.

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