Anti-freezing water-saving type moisture absorption solution countercurrent heat exchanger

Abstract

The utility model discloses an anti-freezing water-saving type moisture absorption solution countercurrent heat exchanger which comprises a shell, an air inlet and liquid outlet is formed in the lower surface of the shell, and an air outlet is formed in the upper surface of the shell; the heat exchange filler is arranged in the shell, and gas entering from the air inlet and liquid outlet is suitable for penetrating through the heat exchange filler to be discharged from the air outlet; and the solution distribution device is arranged in the shell and located above the heat exchange filler, and the solution distribution device is suitable for spraying a moisture absorption solution to the heat exchange filler. The anti-freezing water-saving type moisture absorption solution countercurrent heat exchanger 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 and the like.

Description

Technical Field

[0001] The utility model relates to the field of heat exchange equipment, in particular to an antifreeze and water-saving type moisture absorbing solution countercurrent heat exchanger. 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 an antifreeze and water-saving hygroscopic solution countercurrent heat exchanger, which has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency, etc.

[0004] To achieve the above-mentioned purpose, according to an embodiment of the utility model, an antifreeze and water-saving hygroscopic solution countercurrent heat exchanger is proposed, and the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger includes: a shell, the lower surface of the shell is provided with an air inlet and liquid discharge port and the upper surface is provided with an air outlet; a heat exchange filler, the heat exchange filler is arranged in the shell, and the gas entering the air inlet and liquid discharge port is suitable for passing through the heat exchange filler and being discharged from the air outlet; a solution distribution device, the solution distribution device is arranged in the shell and is located above the heat exchange filler, and the solution distribution device is suitable for spraying hygroscopic solution onto the heat exchange filler.

[0005] The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to the embodiment of the utility model has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency and the like.

[0006] In addition, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to one embodiment of the utility model, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger also includes a liquid collecting device, which is suitable for collecting the hygroscopic solution discharged from the air inlet and outlet, and the liquid collecting device is arranged below the shell and spaced apart from the shell.

[0008] According to an embodiment of the present utility model, the heat exchange filler fills the shell in a horizontal direction.

[0009] According to an embodiment of the present utility model, the solution dispensing device and the heat exchange filler are spaced apart.

[0010] According to an embodiment of the present invention, the interval between the solution dispensing device and the heat exchange filler is 100-200 mm.

[0011] According to an embodiment of the present invention, the solution dispensing device is provided with a plurality of nozzles spaced apart along the length direction of the solution dispensing device.

[0012] According to an embodiment of the present invention, the length direction of the solution dispensing device is oriented along the horizontal direction.

[0013] According to an embodiment of the present invention, the solution dispensing device is connected to a solution driving device.

[0014] According to an embodiment of the utility model, the height of the heat exchange filler is 400-800 mm.

[0015] According to one embodiment of the present invention, the hygroscopic solution is a halide solution and has a density of 1300-1450 kilograms per cubic meter.

[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 an antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to an embodiment of the utility model.

[0019] Reference numerals: antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 , shell 10 , air inlet and liquid outlet 11 , air outlet 12 , heat exchange filler 20 , solution dispensing device 30 , nozzle 31 . 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] 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.

[0024] 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.

[0025] 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.

[0026] The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to an embodiment of the utility model is described below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to the embodiment of the utility model comprises a shell 10 , a heat exchange filler 20 and a solution dispensing device 30 .

[0028] The lower surface of the housing 10 is provided with an air inlet and liquid discharge port 11 and the upper surface is provided with an air outlet 12 (the up and down directions are indicated by arrows in the figure). The heat exchange filler 20 is arranged in the housing 10, and the gas entering the air inlet and liquid discharge port 11 is suitable for passing through the heat exchange filler 20 and being discharged from the air outlet 12. The solution dispensing device 30 is arranged in the housing 10 and is located above the heat exchange filler 20. The solution dispensing device 30 is suitable for spraying a hygroscopic solution onto the heat exchange filler 20.

[0029] 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 20 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 20, and when the gas entering the air inlet and outlet 11 passes through, the hygroscopic solution directly contacts the gas for heat exchange.

[0030] Specifically, taking the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 as an example of cooling the hot hygroscopic solution by using cold air, the cold air enters the housing 10 from the air inlet and liquid discharge port 11, passes through the heat exchange filler 20 from bottom to top, and is discharged from the air outlet 12 (the air flow direction is shown by the solid arrow in the figure), and the solution dispensing device 30 sprays the hygroscopic solution into the heat exchange filler 20, passes through the heat exchange filler 20 from top to bottom, and is discharged from the air inlet and liquid discharge port 11 (the solution flow direction is shown by the hollow arrow in the figure). The cold air with opposite flow directions directly contacts the hot hygroscopic solution at the heat exchange filler 20 for heat exchange.

[0031] According to the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 of the embodiment of the utility model, by using 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 scheme of using water as the heat exchange medium in the related technology, the evaporation of the heat exchange medium can be suppressed, and the heat exchange medium loss caused by evaporation during the operation of the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 can be reduced, thereby achieving the purpose of saving water resources, so that the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 can be used in areas with scarce water resources, and 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 antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1, and can save additional antifreeze measures. The operation cost of the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 is reduced, so that the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 can be suitable for cold weather and areas.

[0032] Furthermore, by providing the heat exchange filler 20, the hygroscopic solution and the gas can directly contact and exchange heat at the heat exchange filler 20. 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.

[0033] In addition, by making the flow directions of the airflow and the hygroscopic solution opposite, a countercurrent heat exchange method can be achieved. Compared with the technical solution of cross-flow heat exchange, the relative flow speed of the airflow and the hygroscopic solution can be increased, and the airflow can be used to quickly take away the heat of the hygroscopic solution, thereby improving the heat exchange efficiency of the airflow and the hygroscopic solution.

[0034] Therefore, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to the embodiment of the utility model has the advantages of good water-saving effect, strong antifreeze ability, good applicability, low cost, high heat exchange efficiency, etc.

[0035] The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to a specific embodiment of the utility model is described below with reference to the accompanying drawings.

[0036] In some specific embodiments of the present invention, Figure 1 As shown, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to the embodiment of the utility model comprises a shell 10 , a heat exchange filler 20 and a solution dispensing device 30 .

[0037] Advantageously, the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 further comprises a liquid collecting device (not shown in the figure), which is suitable for collecting the hygroscopic solution discharged from the air inlet drain port 11, and the liquid collecting device is arranged below the housing 10 and spaced apart from the housing 10. In this way, the hygroscopic solution discharged from the air inlet drain port 11 can be collected by the liquid collecting device, which is convenient for recycling the hygroscopic solution, and by arranging the liquid collecting device below the housing 10 and spaced apart from the housing 10, the liquid collecting device can be prevented from blocking the airflow from entering the air inlet drain port 11, and the airflow can be conveniently entered into the air inlet drain port 11 while ensuring the collection of the hygroscopic solution.

[0038] Specifically, the solution distribution device 30 may be connected to a liquid inlet pipeline, and the liquid collection device may be connected to a liquid outlet pipeline, and the liquid inlet pipeline and the liquid outlet pipeline are both connected to the heat source to be cooled, and the hygroscopic solution circulates between the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 and the heat source to be cooled through the liquid inlet pipeline and the liquid outlet pipeline, and the hygroscopic solution exchanges heat with the heat source to be cooled, and the hot hygroscopic solution enters the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 through the liquid inlet pipeline, and is sprayed on the heat exchange filler 20 through the solution distribution device 30, and at the same time, the cold air enters the shell 10 through the air inlet and liquid outlet 11 and passes through the heat exchange filler 20. The cold air and the hot hygroscopic solution are in direct contact at the heat exchange filler 20 for heat exchange, and the hot hygroscopic solution is discharged through the air inlet and liquid outlet 11 after cooling down and is collected by the liquid collection device, and then discharged through the liquid outlet pipeline and exchanges heat with the heat source again, and the cold air is discharged through the air outlet 12 after heating up.

[0039] Furthermore, a circulation pipe may be connected between the liquid collecting device and the solution dispensing device 30, and an on-off valve may be connected to both the liquid inlet pipe and the liquid outlet pipe. In this way, the hygroscopic solution collected by the liquid collecting device can be returned to the solution dispensing device 30 through the circulation pipe, so that the hygroscopic solution can be circulated inside the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1, further improving the heat exchange effect. For example, the on-off valve may be opened first, and then the on-off valve may be closed after the hygroscopic solution enters the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1, and then the on-off valve may be opened after the hygroscopic solution circulates and exchanges heat to a predetermined temperature.

[0040] Optionally, the liquid collecting device is spaced 200-600 mm from the housing 10. Here, the spacing is preferably 400 mm. This can facilitate airflow to enter the air inlet and liquid discharge port 11 while ensuring the collection effect of the liquid collecting device on the hygroscopic solution discharged from the air inlet and liquid discharge port 11.

[0041] More advantageously, if Figure 1 As shown, the heat exchange filler 20 fills the shell 10 in the horizontal direction. In other words, the outer peripheral surface of the heat exchange filler 20 abuts against the inner peripheral surface of the shell 10 in the horizontal direction. In this way, the airflow entering the shell 10 can pass through the heat exchange filler 20 before being discharged, further improving the heat exchange efficiency of the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1.

[0042] Figure 1 The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 1 according to some examples of the utility model is shown. Figure 1 As shown, the solution dispensing device 30 is spaced apart from the heat exchange filler 20. This allows the moisture absorbing solution to be sprayed more evenly on the heat exchange filler 20, thereby further improving the heat exchange efficiency.

[0043] Optionally, the interval between the solution dispensing device 30 and the heat exchange filler 20 is 100-200 mm, which can prevent the solution dispensing device 30 from being too close or too far from the heat exchange filler 20, so that the hygroscopic solution can be sprayed more evenly on the heat exchange filler 20, further improving the heat exchange efficiency.

[0044] Specifically, Figure 1 As shown, the solution dispensing device 30 is provided with a plurality of nozzles 31 spaced apart along the length direction of the solution dispensing device 30. In this way, the hygroscopic solution can be sprayed on the heat exchange filler 20 through the plurality of spaced apart nozzles, so as to spray the hygroscopic solution more evenly, thereby further improving the heat exchange efficiency.

[0045] Furthermore, if Figure 1 As shown, the length direction of the solution dispensing device 30 is oriented in the horizontal direction. In this way, the moisture absorbing solution can be sprayed more evenly on the heat exchange filler 20, thereby further improving the heat exchange efficiency.

[0046] Advantageously, the solution dispensing device 30 is connected to a solution driving device. Specifically, the solution driving device may be a liquid pump. This can provide sufficient driving force for the hygroscopic solution to spray out of the solution dispensing device 30, so as to further facilitate the hygroscopic solution to be evenly sprayed on the heat exchange filler 20.

[0047] Optionally, the height of the heat exchange filler 20 is 400-800 mm, preferably 600 mm. This allows the airflow and the hygroscopic solution to have sufficient heat exchange space in the heat exchange filler 20, ensuring the heat exchange time between the airflow and the hygroscopic solution, and further improving the heat exchange efficiency.

[0048] Specifically, the hygroscopic solution is a halide solution with a density of 1300-1450 kg / m3, which can ensure the moisture absorption effect and antifreeze effect of the hygroscopic solution.

[0049] Other structures and operations of the antifreeze and water-saving hygroscopic solution countercurrent heat exchanger 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.

[0050] 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.

[0051] 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. An antifreeze and water-saving hygroscopic solution countercurrent heat exchanger, characterized in that: include: A shell, wherein the lower surface of the shell is provided with an air inlet and a liquid discharge port and the upper surface of the shell is provided with an air outlet; A heat exchange filler, wherein the heat exchange filler is arranged in the shell, and the gas entering the air inlet and liquid discharge port is suitable for passing through the heat exchange filler and being discharged from the air outlet; A solution dispensing device is disposed in the shell and above the heat exchange filler, and is suitable for spraying a moisture absorbing solution onto the heat exchange filler.

2. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: It also includes a liquid collecting device, which is suitable for collecting the hygroscopic solution discharged from the air inlet and outlet. The liquid collecting device is arranged below the shell and is spaced apart from the shell.

3. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: The heat exchange filler fills the shell in a horizontal direction.

4. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: The solution dispensing device is spaced apart from the heat exchange filler.

5. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 4 is characterized in that: The interval between the solution distribution device and the heat exchange filler is 100-200 mm.

6. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: The solution dispensing device is provided with a plurality of nozzles spaced apart along the length direction of the solution dispensing device.

7. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: The length direction of the solution dispensing device is oriented in a horizontal direction.

8. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1 is characterized in that: The solution dispensing device is connected with a solution driving device.

9. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1, characterized in that: The height of the heat exchange filler is 400-800 mm.

10. The antifreeze and water-saving hygroscopic solution countercurrent heat exchanger according to claim 1, characterized in that: The hygroscopic solution is a halide solution and has a density of 1300-1450 kilograms per cubic meter.

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