CN216845754U - Natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipe and environment heat - Google Patents
Natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipe and environment heat Download PDFInfo
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- CN216845754U CN216845754U CN202220469633.7U CN202220469633U CN216845754U CN 216845754 U CN216845754 U CN 216845754U CN 202220469633 U CN202220469633 U CN 202220469633U CN 216845754 U CN216845754 U CN 216845754U
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- cooling tower
- antifreeze
- freezing
- natural draft
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Abstract
The utility model discloses an utilize and prevent frostbite pipe and thermal natural draft cooling tower system of preventing frostbite of environment, including circulating water pipeline, prevent frostbite pipe, cooling tower and heat absorption glass etc.. The wind shield adopts heat absorption glass with heat absorption performance, so that the wind shield can absorb heat of solar energy while effectively controlling the air inlet amount of the cooling tower in winter, improve the air inlet temperature of the cooling tower, and prevent the freezing of the cooling tower and the problems in the cooling tower. On this basis, in order to further strengthen the effect of preventing frostbite, also to avoid overcast and rainy weather can't guarantee the heat influence air inlet temperature of environment, the large-traffic anti-freeze pipe of round or a plurality of circles is arranged at the air intake top to the natural draft cooling tower.
Description
Technical Field
The utility model belongs to the technical field of coal-fired unit energy saving and consumption reduction, concretely relates to utilize frostproofing pipe and thermal natural draft cooling tower system of preventing frostbite of environment.
Background
The natural ventilation cooling tower is an important cooling device in the power industry and the petrochemical industry, is mostly used for cooling circulating water and serves as one of heat balance systems and structures of the whole power generation system. In northern low-temperature areas, because the temperature is lower and the wind speed is higher in winter, the icing problem generally exists in natural ventilation cooling, the problem that the freezing prevention of a wet cooling unit in winter is required to be solved every year, and particularly for winter heat supply and low-load peak shaving units, the normal operation of the whole system in winter is guaranteed.
Common anti-freezing methods for natural draft cooling towers include: a wind screen is arranged on a natural ventilation cooling tower, but the anti-freezing problem of the arctic-arctic cold area or a low-pressure cylinder zero-treatment unit cannot be solved by the anti-freezing measure of the type. Once icicles are formed inside the cooling tower due to too low temperature, the icicles are difficult to remove, and the presence of the icicles is easy to cause damage or safety accidents of equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide and an utilize anti-freezing pipe and environment thermal natural draft cooling tower anti-freezing system to solve among the prior art natural draft cooling tower problem of preventing frostbite.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipes and environmental heat comprises an air inlet area, wherein the air inlet area is arranged at the lower part of a natural ventilation cooling tower;
the top of the air inlet area is provided with a water curtain type anti-freezing pipe which is arranged around the circumference of the natural ventilation cooling tower; the water curtain type anti-freezing pipe is provided with a plurality of water outlets;
the air inlet area is provided with a plurality of supporting frames equally around the circumference of the air inlet area, and heat absorption glass is arranged between the adjacent supporting frames.
The utility model discloses a further improvement lies in:
preferably, the water curtain type anti-freezing pipe is provided with a plurality of rings, the water outlet of the water curtain type anti-freezing pipe at the middle layer is arranged at the side part, and the water outlet of the water curtain type anti-freezing pipe at the bottom layer is arranged at the bottom part.
Preferably, the water outlets of each layer are equally spaced around the circumference.
Preferably, the water curtain type anti-freezing pipe is a layer, and the water outlet is formed in the bottom of the water curtain type anti-freezing pipe.
Preferably, the support frame is equally arranged around the circumference of the air inlet area.
Preferably, a support strip is arranged in the heat absorption glass.
Preferably, the air inlet area is equally divided into four measuring areas along the circumferential direction of the air inlet area.
Preferably, a platinum resistor and an anemoscope are arranged in each measuring area.
Preferably, the platinum resistor and the anemorumbometer are arranged on the support frame.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an utilize anti-freezing pipe and environment thermal natural draft cooling tower anti-freezing system, including circulating water pipeline, anti-freezing pipe, cooling tower and heat absorption glass etc.. The natural draft cooling tower is an important cooling device in the power industry and the petrochemical industry and plays an important role in cooling circulating water. In order to effectively solve the problem, the heat absorption glass with heat absorption performance can be adopted, so that the heat of solar energy can be absorbed while the air inlet volume of the cooling tower in winter is effectively controlled, the air inlet temperature of the cooling tower is increased, the cooling tower is prevented from being frozen, and the problem inside the cooling tower is solved. On this basis, in order to further strengthen the effect of preventing frostbite, also to avoid the heat that overcast and rainy weather can't guarantee the environment to influence the air inlet temperature, the natural draft cooling tower arranges the large-traffic anti-freeze pipe of round or a plurality of circles at the air intake top, and the anti-freeze pipe adopts the water curtain type anti-freeze pipe that is difficult for blockking up. The water passing through the anti-freezing pipe is about 25% of the water passing through the tower in winter, cold air entering the inner zone is heated, and the risk of freezing of the natural ventilation cooling tower is reduced. The opening of the wind screen is adjusted through automatic control, so that the phenomenon that the wind screen is basically closed too much in winter in order to prevent freezing of a part of power plants, the temperature of cooling water is too high, and the economical efficiency of a unit is influenced is avoided. The utility model discloses a can effectively solve the problem that prevents frostbite of cooling tower to solved the cooling tower and hung ice and fall to destroy filler and other potential safety hazards problems, through the automatic heat absorption glass of adjusting that becomes more meticulous simultaneously, prevent that heat absorption glass from closing too and leading to the problem that the cooling water temperature rises, promoted the operation economic nature of unit.
Further, for particularly cold areas in winter, the water curtain type anti-freezing pipe can be provided with multiple layers, so that the water yield is increased, and the air inlet temperature is further increased.
Further, for areas that are not particularly cold in winter, the water curtain type anti-freezing pipe can meet the requirement by arranging one layer.
Further, the support frame is equally divided around the circumference of the air inlet area, so that the heat absorption glass can be evenly equally divided.
Furthermore, the air inlet area is provided with four measuring areas, so that the wind directions and the temperatures in different directions can be measured, and the opening and closing degree of the heat absorption glass in the area can be further determined.
Drawings
FIG. 1 is a system configuration test chart of the present invention;
fig. 2 is a top cross-sectional view 1 of the present invention;
FIG. 3 is a schematic structural view of the heat absorbing glass of the present invention;
FIG. 4 is a schematic view of a natural draft cooling tower air intake zone partition.
Wherein: 1-natural draft cooling tower; 2-cooling tower filling; 3-the top of the air inlet; 4-air intake area; 5-a support frame; 6-heat absorbing glass; 7-water curtain type anti-freezing pipe; 8-water outlet; 9-measurement area; 10-platinum resistance; 11-anemorumbometer; 12-support bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses an utilize anti-freezing pipe and thermal natural draft cooling tower anti-freezing system of environment to realize solving the frostproofing problem in cooling tower winter.
The anti-freezing system is arranged in a natural draft cooling tower 1, referring to fig. 1, a cooling tower filler 2 is arranged at the middle lower part inside the natural draft cooling tower 1, the lower part of the cooling tower filler 2 is an air inlet area 4 of the natural draft cooling tower 1, and an area, which is formed below the cooling tower filler 2, on the side wall of the natural draft cooling tower 1 is the air inlet area 4.
The air inlet area 4 has a certain height which changes with the change of the height of the natural draft cooling tower 1, and the height of the air inlet area 4 is usually 5-15 m. The outside of air inlet region 4 is provided with round support frame 5 around its circumference, and the direction of setting up of support frame 5 is vertical, and is preferred, and the distance between the adjacent support frame 5 is equal.
The utility model discloses an embodiment does, in the top of the regional 4 of air inlet, regional top 3 of air inlet, the lower part of the inside wall of natural draft cooling tower 1 is coiled there is the frostproofing pipe 7 of a plurality of circles water curtain type, and the frostproofing pipe 7 of water curtain type is coiled around the inside wall from the top down or from the bottom up of natural draft cooling tower 1 at the top of the regional 4 of air inlet, and the number of turns and the height that the frostproofing pipe 7 of water curtain type coiled can be set for according to the demand. In the colder regions such as northeast, the number of turns of the water curtain type anti-freezing pipe 7 can be provided with 3 ~ 5 circles, and to the conventional northern region, the number of turns of the water curtain type anti-freezing pipe 7 sets up 1 circle and can satisfy the demand.
The water inlet of the water curtain type anti-freezing pipe 7 is disposed at the uppermost end and is communicated with the hot water flowing out of the vertical shaft. When the import of water curtain type anti-freezing pipe 7 was provided with many rings, the import can be provided with a plurality ofly, guarantees the temperature of the water that flows.
The lateral part of the water curtain type anti-freezing pipe 7 in the middle layer is provided with a plurality of water outlets 8, see fig. 2, which is a bottom view of the water curtain type anti-freezing pipe 7, and the lower part of the water curtain type anti-freezing pipe 7 at the bottommost layer is provided with a plurality of water outlets 8. Preferably, the water outlets of each circle of the water curtain type anti-freezing pipes 7 are equally arranged along the circumferential direction of the water curtain type anti-freezing pipes, and the positions of the water outlets arranged on each layer of the water curtain type anti-freezing pipes 7 can be different, so that water curtains which are uniformly distributed are formed. More preferably, the number of the water curtain type anti-freezing pipes 7 can be set to be a plurality, and each water curtain type anti-freezing pipe 7 is provided with an independent water inlet, so that the water temperature can be ensured and cannot be reduced due to the overlong water curtain type anti-freezing pipes 7.
The number of the winding layers of the water curtain type antifreeze pipe 7 can be one.
The utility model discloses a another embodiment does, is provided with the deep bead between adjacent support frame 5, the deep bead adopts heat absorption glass 6, and heat absorption glass 6 can absorb solar radiation's energy in a large number, improves the inside temperature of natural draft cooling tower 1.
Referring to fig. 3, another embodiment of the present invention is that the heat absorbing glass 6 is provided with a plurality of supporting bars 12 at the middle position thereof according to the height of the air inlet area, the supporting bars 12 can be arranged transversely, longitudinally or alternately, and the specific number can be set according to the height and width of the supporting glass.
Referring to fig. 4, another embodiment of the present invention is to divide the whole air intake area 4 into four areas, the four areas are distributed in a sector ring shape, and each air intake area 4 is provided with a platinum resistor 10 and an anemoscope 11 on the support frame 5 in the area.
The utility model discloses a theory of operation does:
the heat absorption glass 6 is used as an anti-freezing baffle of the natural ventilation cooling tower 1, so that the air inlet temperature of the cooling tower is increased, and the cooling tower is prevented from freezing. The opening of the wind shield 6 can be adjusted, the anti-freezing effect can be further enhanced, the influence of heat of the environment on the air inlet temperature in rainy weather is avoided, a circle of large-flow anti-freezing pipes are arranged on the periphery of the top of the air inlet of the natural ventilation cooling tower 1, and the anti-freezing pipes are water curtain type anti-freezing pipes 7 which are not easy to block.
The wind shield adopts heat absorption glass 6, and a temperature probe and an anemoscope are arranged on a support frame 5 provided with the heat absorption glass, so that the air inlet temperature, the air inlet direction and the air speed of the cooling tower can be monitored in real time.
Circulating cooling water enters a natural ventilation cooling tower 1 after cooling exhaust steam of the steam turbine, is distributed by a water distribution device and then is sprayed to a natural ventilation cooling tower filler 2 for cooling, cooling of the cooling tower mainly depends on entering cooled air to enter a tower core for cooling, and the cooled air enters the cooling tower through a natural ventilation cooling tower air inlet area 4. The anti-freezing pipe of the natural draft cooling tower is arranged at the top 3 of the air inlet of the natural draft cooling tower, the anti-freezing pipe adopts a water curtain type anti-freezing pipe which is not easy to block 7 plugs, and the periphery of the anti-freezing pipe is provided with a sufficient water curtain to ensure that cold air is heated to prevent the wall of the tower from freezing. The water passing through the anti-freezing pipe is about 25% of the water passing through the tower in winter, cold air entering the inner zone is heated, and the risk of freezing of the natural ventilation cooling tower is reduced. The platinum resistor 8 arranged on the support frame 5 detects that the temperature of inlet air is lower than-20 ℃ or when the heat load of a condenser entering the turbine unit is lower than 20% of the designed heat load and the environmental temperature is lower than-15 ℃, all wind shields are closed at the moment, the greenhouse effect is formed, and the inlet air temperature of the cooling tower is ensured. The temperature of the inlet air is detected to be lower than minus 5 ℃ through a platinum resistor 10 arranged on the support frame 5, the wind speed of a certain area is detected to be higher than 5m/s through a wind speed and direction indicator 11 arranged on a wind shield, and the heat absorption glass 6 of the area is closed at the moment. The temperature of the inlet air is detected to be higher than minus 5 ℃ through a platinum resistor 10 arranged on the wind shield, and the heat absorption glass 6 is completely opened.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A natural draft cooling tower anti-freezing system utilizing anti-freezing pipes and environmental heat is characterized by comprising an air inlet area (4), wherein the air inlet area (4) is arranged at the lower part of a natural draft cooling tower (1);
the top of the air inlet area (4) is provided with a water curtain type anti-freezing pipe (7), and the water curtain type anti-freezing pipe (7) is arranged around the circumference of the natural ventilation cooling tower (1); a plurality of water outlets (8) are formed in the water curtain type anti-freezing pipe (7);
the air inlet area (4) is provided with a plurality of support frames (5) in an equally-divided mode around the circumferential direction of the air inlet area, and heat absorption glass (6) is arranged between the adjacent support frames (5).
2. The natural draft cooling tower antifreeze system using antifreeze tubes and environmental heat according to claim 1, wherein said water curtain type antifreeze tubes (7) are provided with a plurality of rings, the water outlet (8) of the middle water curtain type antifreeze tube (7) is opened at the side, and the water outlet (8) of the bottom water curtain type antifreeze tube (7) is opened at the bottom.
3. A natural draft cooling tower de-icing system using anti-icing ducts and ambient heat according to claim 2 wherein the water outlets (8) of each level are equally spaced around the circumference.
4. The natural draft cooling tower antifreeze system using antifreeze tubes and environmental heat according to claim 1, wherein said water curtain type antifreeze tube (7) is a single layer, and the water outlet (8) is opened at the bottom of the water curtain type antifreeze tube (7).
5. The natural draft cooling tower antifreeze system using antifreeze tubes and ambient heat according to claim 1, wherein said support frames (5) are equally spaced around the circumference of the intake air area (4).
6. The natural draft cooling tower antifreeze system using antifreeze tubes and ambient heat according to claim 1, wherein said heat absorbing glass (6) has support bars (12) disposed therein.
7. The natural draft cooling tower antifreeze system using antifreeze tubes and ambient heat according to any of claims 1 to 6, wherein said intake area (4) has four measurement areas (9) equally divided along its circumference.
8. A natural draft cooling tower de-icing system using anti-icing ducts and ambient heat according to claim 7, characterised in that a platinum resistor (10) and an anemometer (11) are provided in each measuring area (9).
9. The system for preventing freezing of a natural draft cooling tower using anti-freezing tubes and ambient heat according to claim 8, wherein said platinum resistor (10) and anemoscope (11) are provided on the support frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220469633.7U CN216845754U (en) | 2022-03-04 | 2022-03-04 | Natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipe and environment heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220469633.7U CN216845754U (en) | 2022-03-04 | 2022-03-04 | Natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipe and environment heat |
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| Publication Number | Publication Date |
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| CN216845754U true CN216845754U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220469633.7U Active CN216845754U (en) | 2022-03-04 | 2022-03-04 | Natural ventilation cooling tower anti-freezing system utilizing anti-freezing pipe and environment heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216845754U (en) |
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2022
- 2022-03-04 CN CN202220469633.7U patent/CN216845754U/en active Active
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