CN220303804U - Condensing structure for cooling tower - Google Patents
Condensing structure for cooling tower Download PDFInfo
- Publication number
- CN220303804U CN220303804U CN202321919506.3U CN202321919506U CN220303804U CN 220303804 U CN220303804 U CN 220303804U CN 202321919506 U CN202321919506 U CN 202321919506U CN 220303804 U CN220303804 U CN 220303804U
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- Prior art keywords
- water
- cooling tower
- air duct
- cooling
- pipe
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- 238000001816 cooling Methods 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 241000736911 Turritella communis Species 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 206010010904 Convulsion Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Abstract
The utility model relates to the technical field of cooling towers, and particularly discloses a condensing structure for a cooling tower, which comprises a cooling tower shell, a water outlet pipe, a water supply pipe and an air duct, wherein the water outlet pipe is used for being connected with a water collecting tank of the cooling tower; a fan is fixed at the upper end of the air duct; the surface of the cooling port is radially provided with a plurality of air inlets; an annular pipe is also fixed in the cooling port, the outer surface of the annular pipe is separated from the inner wall of the air duct, and the water inlet end and the water outlet end of the annular pipe are positioned on the same side; the water inlet end of the annular pipe is connected with the water outlet pipe, and the water outlet end of the annular pipe is connected with the water supply pipe. By adopting the technical scheme of the utility model, the water evaporation capacity of the open cooling tower can be reduced.
Description
Technical Field
The utility model relates to the technical field of cooling towers, in particular to a condensing structure for a cooling tower.
Background
An open cooling tower is a device for reducing the temperature of a cooling medium in a system such as an industrial plant or a power plant. It uses heat exchange between water and air to effect cooling by exposing hot water or a cooling medium to the air.
Open cooling towers generally comprise: and (3) a spraying system: the spraying system of the cooling tower is positioned at the upper part and is responsible for uniformly spraying hot water into the cooling tower. Spray systems typically include a spray head or nozzle that disperses water into fine droplets of water to increase the contact area of the water with the air. Packing layer: the packing layer is positioned inside the cooling tower and used for increasing the contact area between air and water so as to promote the heat exchange process. The filler is typically a structured material, such as plastic or metal sheet, having a relatively large surface area. The water droplets form films on the filler and exchange heat with air through these films. And (3) a fan: the fan is positioned at the top of the cooling tower. Their function is to introduce air flow and to increase the contact between air and filler. The fan sucks external air into the cooling tower by generating a strong air flow, so that the air meets the descending water drops and exchanges heat. A water collector: the water cooling device is positioned between the fan and the spraying system and is used for cooling water vapor and collecting condensed water so as to reduce the evaporation capacity of water and reduce the consumption of water. A water collecting tank: the cooling water collecting device is positioned at the bottom of the cooling tower and used for collecting cooling water dripping from the filler for recycling.
Since the water receiver can only reduce the evaporation amount of water, part of the water still escapes into the air in the form of water vapor, and water needs to be periodically replenished. In order to save resources and prolong the water replenishing period, a condensing structure for a cooling tower capable of reducing water consumption is required.
Disclosure of Invention
The utility model provides a condensing structure for a cooling tower, which can reduce the evaporation amount of water.
In order to solve the technical problems, the application provides the following technical scheme:
the condensing structure for the cooling tower comprises a cooling tower shell, a water outlet pipe for connecting a cooling tower water collecting tank, a water supply pipe for connecting equipment, and an air duct, wherein the diameters of two ends of the air duct are larger than those of the middle part, the middle part of the air duct is narrowed to form a cooling port, the lower end of the air duct is fixedly connected with the cooling tower shell, and the diameter of the upper end of the air duct is smaller than that of the lower end of the air duct; a fan is fixed at the upper end of the air duct;
the surface of the cooling port is radially provided with a plurality of air inlets; an annular pipe is also fixed in the cooling port, the outer surface of the annular pipe is separated from the inner wall of the air duct, and the water inlet end and the water outlet end of the annular pipe are positioned on the same side; the water inlet end of the annular pipe is connected with the water outlet pipe, and the water outlet end of the annular pipe is connected with the water supply pipe.
The basic scheme principle and the beneficial effects are as follows:
in the existing scheme, cooling water dripped by the filler enters a water collecting tank, then is pumped and conveyed to equipment needing cooling through a water pump, and used hot water is conveyed to a spraying system for circulation.
In this scheme, the cooling water in the catch basin is carried to the annular pipe through the outlet pipe, flows a week along the annular pipe after, and the rethread delivery pipe is carried to the equipment that needs refrigerated.
Because the air duct is big in both ends, the shape that the middle part is narrowed, the fan convulsions, when air flows from the lower extreme to the upper end, can form venturi effect, and the speed of air reaches maximum, and static pressure reaches minimum, and then produces the pressure differential, and this pressure differential can make the outside air of air duct get into in the air duct through the air inlet. The area at the cooling port is further reduced due to the annular pipe, so that the Venturi effect can be enhanced.
The water in the annular pipe is cooled water, the temperature of the annular pipe is lower than the temperature of the gas after heat exchange flowing upwards, and partial water vapor contacts with the surface of the annular pipe and is condensed into water drops when meeting condensation, and the water drops are dropped into a water receiver below, so that the evaporation quantity of the water can be reduced. The steam condenses and can give off heat, but the high-speed flow of annular pipe air-out flow can take away heat, has the distance between the surface of annular pipe and the inner wall of air duct moreover, and annular pipe shaft is circular, and annular pipe shaft is close to inner wall one side, narrows to minimum step by step with the distance of inner wall, increases step by step again, and local reformation venturi effect accelerates the air flow again, inhales more air and is annular pipe cooling.
In summary, the present solution can reduce the evaporation amount of water.
Further, a protective net is fixed on the outer ring of the cooling port in a surrounding mode.
The protective net can prevent foreign matters from being sucked into the air duct or blocking the air inlet. Compared with the protection net directly installed on the air inlet, the protection net has larger area and is farther away from the air inlet, so that the influence of the protection net on air flow is reduced.
Further, the annular tube is located above the air inlet.
Avoiding blocking the air inlet.
Further, the cooling port is respectively provided with a water inlet and a water outlet, the water inlet end extends out of the air duct through the water inlet, and the water outlet end extends out of the air duct through the water outlet.
The water inlet and the water outlet not only can be used for the water inlet end and the water outlet end to pass through, but also can play a role in supporting the annular pipe.
Further, the diameter of the upper end of the air duct is smaller than that of the lower end.
The water vapor may also condense on the side walls of the barrel.
Further, the left end and the right end of the annular tube are towards the middle, and the height of the annular tube is gradually reduced.
Because the two ends of the annular pipe are high and the middle is low, after the water vapor is condensed into water drops, the water drops can be gathered to the middle along the annular pipe under the action of gravity and flow into the water collector below.
Further, the device also comprises a support frame, wherein the upper end of the support frame is fixedly connected with the middle part of the annular pipe, and the water collector in the cooling tower shell at the lower end of the support frame is fixedly connected.
The support frame plays the effect of drainage, makes water flow to the water collector along the support frame. The support frame can also play a supporting role on the annular pipe.
Further, the support frame comprises a cylindrical upper support rod and a lower support rod with a cross-shaped cross section; the top of the upper supporting rod is fixedly connected with the middle part of the annular tube, the bottom of the upper supporting rod is fixedly connected with the top of the lower supporting rod, and the bottom of the lower supporting rod is fixedly connected with a water collector in the cooling tower shell.
Because the upper supporting rod is cylindrical, the water drops in all directions can be drained, and then the water drops are drained to the cross-shaped lower supporting rod, so that the water flows downwards in four included angles of the lower supporting frame. The cross lower support rod can collect water for the second time.
Drawings
FIG. 1 is a front view of a first embodiment of a condensing structure for a cooling tower;
FIG. 2 is a front view showing an air duct for installing a protection net in a first embodiment of a condensing structure for a cooling tower;
FIG. 3 is a top view of a first embodiment of a condensing structure for a cooling tower;
fig. 4 is a partial front view of a support frame in a second embodiment of a condensing structure for a cooling tower.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: the cooling tower comprises a cooling tower shell 1, an air duct 2, a cooling port 3, an air inlet 4, a protective net 5, an annular pipe 6, a water inlet end 7, a water outlet end 8, a water collector 9, an upper supporting rod 10 and a lower supporting rod 11.
Example 1
As shown in fig. 1, the condensing structure for a cooling tower of the present embodiment includes a cooling tower casing 1, a water outlet pipe for connecting a cooling tower sump, and a water supply pipe for connecting equipment, and further includes an air duct 2.
The diameter at both ends of the air duct 2 is larger than the diameter in the middle part, the middle part of the air duct 2 is narrowed to form a cooling port 3, the lower end of the air duct 2 is fixedly connected with the cooling tower shell 1, and the upper end of the air duct 2 is fixedly provided with a fan.
As shown in fig. 2, the surface of the cooling port 3 is radially provided with a plurality of air inlets 4, and in this embodiment, the air inlets 4 circumferentially surround the outer surface of the cooling port 3. The outer ring of the cooling port 3 is fixedly provided with a protective net 5. In the embodiment, a plurality of brackets are welded on the outer radial direction of the air duct 2, and the protective net 5 is bound on the brackets. By providing the support, a certain distance can be provided between the protection net 5 and the air inlet 4.
As shown in fig. 3, an annular tube 6 is also fixed in the cooling port 3, the annular tube 6 is positioned above the air inlet 4, and the outer surface of the annular tube 6 is spaced from the inner wall of the air duct 2. In other words, the annular tube 6 is not attached to the inner wall of the barrel 2.
The water inlet end 7 and the water outlet end 8 of the annular pipe 6 are positioned on the same side. The cooling port 3 is provided with a water inlet and a water outlet respectively, the water inlet end 7 extends out of the air duct 2 through the water inlet, and the water outlet end 8 extends out of the air duct 2 through the water outlet.
The water inlet end 7 of the annular pipe 6 is connected with the water outlet pipe flange, and the water outlet end 8 of the annular pipe 6 is connected with the water supply pipe flange.
In the existing scheme, cooling water dripped by the filler enters a water collecting tank, then is pumped and conveyed to equipment needing cooling through a water pump, and used hot water is conveyed to a spraying system for circulation.
In the solution of this embodiment, the cooling water in the water collecting tank is delivered to the annular pipe 6 through the water outlet pipe, flows along the annular pipe 6 for one week, and is delivered to the equipment to be cooled through the water supply pipe. The water flow in the annular pipe 6 is conveyed by the existing water pump, and no additional water pump is needed.
Because the air duct 2 both ends are big, and the middle part is narrowed the shape, and the fan convulsions can form venturi effect when air flows from the lower extreme to the upper end, and the speed of air reaches maximum, and static pressure reaches minimum, and then produces the pressure differential, and this pressure differential can make the outside air of air duct 2 get into in the air duct 2 through air inlet 4. The venturi effect can be enhanced by further reducing the area at the cooling port 3 due to the presence of the annular tube 6.
Because the water in the annular pipe 6 is cooled water, the temperature of the annular pipe 6 is lower than the temperature of the gas after heat exchange flowing upwards, and part of water vapor is condensed into water drops when contacting with the surface of the annular pipe 6 and drops into the water collector 9 below, so that the evaporation amount of the water can be reduced. The steam condenses and can give off heat, but the high-speed air current of ring pipe 6 department flows and can take away heat, has the distance between the inner wall of ring pipe 6 and air duct 2 moreover, and ring pipe 6 tubular body is circular, and ring pipe 6 tubular body is close to inner wall one side, narrows to minimum step by step with the distance of inner wall, increases step by step again, and the local venturi effect that reforms further accelerates the air flow, and the air through the outside is ring pipe 6 cooling.
Example two
The difference between this embodiment and the first embodiment is that the height of the left and right ends of the circular tube 6 in this embodiment is gradually reduced toward the middle.
The device also comprises a support frame, wherein the upper end of the support frame is fixedly connected with the middle part of the annular pipe 6, and the lower end of the support frame is fixedly connected with a water collector 9 in the cooling tower shell 1. Specifically, as shown in fig. 4, the support frame includes a cylindrical upper support bar 10 and a cross-shaped lower support bar 11; the top end of the upper supporting rod 10 is welded with the bottom surface of the middle part of the annular tube 6, the bottom end of the upper supporting rod 10 is welded with the top end of the lower supporting rod 11, and the bottom end of the lower supporting rod 11 is welded with the water receiver 9 in the cooling tower shell 1.
In this embodiment, since the two ends of the annular tube 6 are high and the middle is low, the water vapor is condensed into water droplets, and then flows to the lower water collector 9 along the annular tube 6 and the support frame under the action of gravity. Because the upper support rod 10 is cylindrical, water drops in all directions can be drained, and then drained to the cross-shaped lower support rod 11, so that water flows downwards along the included angle of the lower support frame. The cross-shaped lower support rod 11 can collect water secondarily.
The support frame can also play a supporting role for the annular tube 6.
The foregoing is merely an embodiment of the present utility model, the present utility model is not limited to the field of this embodiment, and the specific structures and features well known in the schemes are not described in any way herein, so that those skilled in the art will know all the prior art in the field before the application date or priority date, and will have the capability of applying the conventional experimental means before the date, and those skilled in the art may, in light of the teaching of this application, complete and implement this scheme in combination with their own capabilities, and some typical known structures or known methods should not be an obstacle for those skilled in the art to practice this application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. The condensing structure for the cooling tower comprises a cooling tower shell, a water outlet pipe for connecting a cooling tower water collecting tank and a water supply pipe for connecting equipment, and is characterized by further comprising an air duct, wherein the diameters of the two ends of the air duct are larger than those of the middle part, the middle part of the air duct is narrowed to form a cooling port, the lower end of the air duct is fixedly connected with the cooling tower shell, and the diameter of the upper end of the air duct is smaller than that of the lower end of the air duct; a fan is fixed at the upper end of the air duct;
the surface of the cooling port is radially provided with a plurality of air inlets; an annular pipe is also fixed in the cooling port, the outer surface of the annular pipe is separated from the inner wall of the air duct, and the water inlet end and the water outlet end of the annular pipe are positioned on the same side; the water inlet end of the annular pipe is connected with the water outlet pipe, and the water outlet end of the annular pipe is connected with the water supply pipe.
2. The condensing structure for a cooling tower according to claim 1, wherein: and a protective net is fixed on the outer ring of the cooling port.
3. The condensing structure for a cooling tower according to claim 2, wherein: the annular pipe is located above the air inlet.
4. A condensing structure for a cooling tower according to claim 3, characterized by: the cooling port is respectively provided with a water inlet and a water outlet, the water inlet end extends out of the air duct through the water inlet, and the water outlet end extends out of the air duct through the water outlet.
5. The condensing structure for a cooling tower according to claim 4, wherein: the diameter of the upper end of the air duct is smaller than that of the lower end.
6. The condensing structure for a cooling tower according to claim 5, wherein: the left end and the right end of the annular tube are towards the middle, and the height of the annular tube is gradually reduced.
7. The condensing structure for a cooling tower according to claim 6, wherein: the cooling tower also comprises a support frame, wherein the upper end of the support frame is fixedly connected with the middle part of the annular pipe, and the lower end of the support frame is fixedly connected with a water collector in the cooling tower shell.
8. The condensing structure for a cooling tower according to claim 7, wherein: the support frame comprises a cylindrical upper support rod and a lower support rod with a cross-shaped cross section; the top of the upper supporting rod is fixedly connected with the middle part of the annular tube, the bottom of the upper supporting rod is fixedly connected with the top of the lower supporting rod, and the bottom of the lower supporting rod is fixedly connected with a water collector in the cooling tower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321919506.3U CN220303804U (en) | 2023-07-20 | 2023-07-20 | Condensing structure for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321919506.3U CN220303804U (en) | 2023-07-20 | 2023-07-20 | Condensing structure for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220303804U true CN220303804U (en) | 2024-01-05 |
Family
ID=89347974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321919506.3U Active CN220303804U (en) | 2023-07-20 | 2023-07-20 | Condensing structure for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220303804U (en) |
-
2023
- 2023-07-20 CN CN202321919506.3U patent/CN220303804U/en active Active
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