Indirect air cooling tower antifreeze device

Abstract

The present invention relates to an indirect air cooling tower antifreeze device, the antifreeze unit comprises a supporting frame, an anti-suction net, a guide rail, a rolling curtain, a rolling curtain box, an anti-falling cable and an anti-falling cable reel, the anti-falling cable reel is sleeved on the output shaft of the rolling curtain motor, the upper end of the anti-falling cable is fixed on the upper crossbeam of the supporting frame; the rolling curtain box is provided with a rolling curtain motor, a rolling curtain shaft and a reel, the output shaft of the rolling curtain motor is connected to one end of the rolling curtain shaft by driving; the other end of the rolling curtain shaft is connected to the reel shaft by driving; the upper end of the rolling curtain passes through the rolling curtain box and is fixed by the upper crossbeam; two pulleys extending outward are respectively provided on both sides of the rolling curtain box, and the rolling curtain box is embedded in the guide rails on both sides through the pulleys to make the rolling curtain box move up and down along the guide rails. The present invention provides a very complete antifreeze measure for the antifreeze of intercooling units in high-cold areas, and also fills the gap in antifreeze operation experience in high-cold areas.

Description

Technical Field

[0001] The invention relates to an antifreeze device for an indirect air cooling tower, which is mainly used to prevent the freezing phenomenon and hidden dangers of a radiator of an indirect cooling tower during operation in winter. Background Art

[0002] At present, indirect air-cooling units equipped with air-cooling towers have been widely used in my country. The entire air-cooling tower is divided into several sectors, each sector contains several cooling triangle units, and each cooling triangle unit is equipped with an indirect cooling radiator shutter. However, due to the fact that the indirect cooling radiator shutters are often not closed tightly and have a high air leakage rate during operation, there are also unforeseen sudden shutdowns for maintenance, especially in Xinjiang and other high-cold areas, due to the low ambient temperature and strong wind in winter, the tube bundle may freeze, seriously affecting the safe operation of the unit. Therefore, there are still radiator freezing and hidden dangers in the operation of the indirect cooling tower in winter, and there is no effective solution yet. The commonly used measure is to increase the operating back pressure to increase the circulating water temperature of the radiator. However, it will increase coal consumption, increase operating costs, and increase CO2 gas emissions. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned antifreeze method and provide an indirect air cooling tower antifreeze device which saves time and effort and realizes automated operation.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] An indirect air cooling tower antifreeze device comprises an antifreeze unit, which is correspondingly mounted on the outer side of a cooling triangle unit of the air cooling tower, and is characterized in that: the antifreeze unit comprises a support frame fixed on a triangular column of the cooling triangle unit, an anti-suction net fixed in the support frame, a guide rail fixed on a vertical frame of the support frame, a roller shutter and a roller shutter box;

[0006] An anti-fall cable and an anti-fall cable reel are provided, the anti-fall cable reel is sleeved on the output shaft of the rolling motor, the upper end of the anti-fall cable is fixed on the upper crossbeam of the support frame, and the lower end thereof passes through the rolling box and is fixed on the anti-fall cable reel;

[0007] The roller shutter box is provided with a roller shutter motor, a roller shutter shaft and a winding reel for winding the power cord of the roller shutter motor; the roller shutter motor output shaft is connected to one end of the roller shutter shaft through a transmission assembly; the other end of the roller shutter shaft is connected to the winding reel shaft through another transmission assembly and drives the winding reel to rotate;

[0008] The lower end of the rolling curtain is fixed on the rolling curtain shaft, and the upper end of the rolling curtain passes through the rolling curtain box and is fixed through the upper crossbeam of the supporting frame; two pulleys extending outward are respectively provided on both sides of the rolling curtain box, and the rolling curtain box is horizontally installed between the two guide rails, and is embedded in the guide rails on both sides through the pulleys so that the rolling curtain box moves up and down along the guide rails as the rolling curtain motor drives the rolling curtain shaft to roll up the rolling curtain.

[0009] As a preferred embodiment of the present invention: in order to ensure the synchronization of the operation of both sides of the rolling shutter box, thereby improving the stability and smoothness of the operation of the rolling shutter box, the guide rail is a rack, and a motion guide rail for the pulleys on both sides of the rolling shutter box is formed between the rack and the anti-suction net; a balancing gear is provided, and the balancing gear corresponds to the position of the rack and is installed and fixed on both sides of the rolling shutter shaft, and the balancing gear moves up and down on the rack along with the rolling shutter shaft.

[0010] As a further improvement of the present invention: an anti-floating cable for preventing the rolling curtain from fluttering and a fixed pulley group for changing the vertical position of the anti-floating cable are provided; the fixed pulley group includes at least two inner and outer fixed pulleys, the outer fixed pulley is fixed on the side box body of the rolling curtain box; the inner fixed pulley is fixed on the upper box body of the rolling curtain box; the upper end of the anti-floating cable is fixed on the upper crossbeam of the supporting frame, and the lower end thereof passes through the rolling curtain box, bypasses the inner fixed pulley and the outer fixed pulley in turn, passes through the rolling curtain box along the outer side, and is finally fixed on the lower crossbeam of the supporting frame.

[0011] As a preferred embodiment of the present invention, two anti-floating cables and two corresponding fixed pulley groups are provided, which are respectively used for protecting the two sides of the rolling curtain.

[0012] As a further improvement of the present invention: in order to ensure the tension of the anti-drifting cable and reduce the shaking of the rolling curtain, an anti-drifting cable tensioner is provided, and the anti-drifting cable is fixed to the upper crossbeam of the supporting frame through the anti-drifting cable tensioner.

[0013] As a further improvement of the present invention: the rolling shutter motor is installed at the central position of the rolling shutter box, so as to improve the balance of the rolling shutter box.

[0014] As a further improvement of the present invention, a balancing device is provided, which is installed in the rolling shutter box and is used to balance and adjust the weight of the winding drum, reduce the weight difference at both ends of the rolling shutter box, and ensure the smooth operation of the rolling shutter box.

[0015] As a further improvement of the present invention: a row of suction holes are respectively provided on the two side frames of the anti-suction net, and the two side edges of the rolling curtain are sucked by the suction holes to reduce the shaking of the two sides of the rolling curtain and reduce noise.

[0016] The advantages of the present invention are:

[0017] The present invention can realize remote, automatic and on-site operation, which makes the labor intensity extremely low, and can reduce the labor intensity of workers and possible personal injuries.

[0018] The present invention can prevent the antifreeze curtain from being adsorbed onto the blinds due to negative pressure by designing an anti-absorption net, thereby ensuring the normal use of the blinds and the antifreeze curtain; at the same time, the present invention innovatively combines the antifreeze device with the indirect air-cooled radiator, effectively solving the problem of winter antifreeze of the indirect air-cooled radiator.

[0019] The structural design of the present invention is ingenious. It changes the traditional winding mode of the cloth rolling shaft, innovatively uses a motor to drive the cloth rolling shaft to move up and down to roll up the cloth curtain, and then cooperates with the design of an anti-suction net to solve the problem that the cloth rolling shaft cannot roll up the cloth in the traditional winding mode in high-altitude and cold areas, thereby improving the use efficiency and stability.

[0020] The present invention can realize safe operation of the unit without increasing the operating back pressure of the unit in winter, can save energy and reduce consumption, and can reduce the emission of gases such as CO2, and has great value in energy saving and environmental protection.

[0021] The present invention provides a very complete antifreeze measure for intercooling units in high-cold areas. Combined with the control of the outlet water temperature of the sectors, a whole set of more effective and comprehensive new technologies for antifreeze of intercooling units and operation control of reducing the back pressure of units in winter are formed, which also fills the gap in antifreeze operation experience in high-cold areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the assembly structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the rolling shutter box in the present invention.

[0024] Figure 3 It is a schematic diagram of the operating structure of the rolling shutter box in the present invention.

[0025] Figure 4 It is a schematic diagram of the installation structure of the anti-floating cable in the present invention.

[0026] Figure 5 It is a schematic structural diagram of the anti-suction net in the present invention.

[0027] In the figure: 1 is a supporting frame; 11 is an upper crossbeam; 2 is a rolling curtain; 3 is an anti-floating cable; 31 is an anti-floating cable tensioner; 4 is an anti-falling cable; 41 is an anti-falling cable reel; 5 is a power cord; 6 is an anti-suction net; 61 is a suction hole; 7 is a rolling curtain shaft; 71 is a rolling curtain motor; 72 is a reel; 73 is a pulley; 74 is a balance gear; 8. An inner fixed pulley; 81 is an outer fixed pulley; 9 is a transmission gear; 91 is a transmission chain; 10 is a rack. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Embodiment: This embodiment relates to an indirect air-cooling tower antifreeze device, including an antifreeze unit, which is specifically installed on the outer side column of the cooling triangle unit of the air-cooling tower.

[0030] like Figure 1 As shown, the antifreeze unit includes a support frame 1 fixed on the triangular column of the cooling triangle unit, an anti-suction net 6 fixed in the support frame, a rack 10 fixed on the vertical frames on both sides of the support frame, an anti-floating cable 3, a roller shutter 2 and a roller shutter box.

[0031] like Figure 1 and Figure 2 As shown, the shutter box is provided with a shutter motor 71, a shutter shaft 7, a wire reel 72, an anti-fall cable reel 41, fixed pulleys on the left and right sides, and pulleys 73 on the left and right sides outside the shutter box. The shutter motor 71 is installed in the center of the shutter box; the output shaft of the shutter motor 71 is connected to one end of the shutter shaft 7 through a transmission component; the other end of the shutter shaft 7 is connected to the wire reel shaft through another transmission component and drives the wire reel 72 to rotate, and the wire reel 72 is used to reel the power cord of the shutter motor 71; as shown in FIG. Figure 3 As shown: the two sets of transmission components in this embodiment are driven by the transmission gear 9 and the transmission chain 91.

[0032] like Figure 2 As shown, two upper and lower pulleys 73 are respectively provided on the two outer side walls of the rolling shutter box. A balancing gear 74 is provided, which is located outside the rolling shutter box and is directly or indirectly fixed to both sides of the rolling shutter shaft. Figure 1 and Figure 3 As shown, the rack 10 and the vertical frame of the anti-suction net 6 form a moving guide rail for the pulleys 73 on both sides of the rolling box. The rolling box is installed horizontally between the two guide rails, and the pulleys 73 are embedded in the guide rails on both sides so that the rolling box moves up and down along the guide rails as the rolling motor drives the rolling shaft 7 to roll up the rolling curtain 2. The balance gear 74 is installed at the position corresponding to the rack 10, and moves up and down on the rack 10 along with the rolling shaft 7.

[0033] like Figure 1 As shown, the lower end of the rolling curtain 2 is fixed on the rolling curtain shaft 7, and the upper end of the rolling curtain 2 passes through the rolling curtain box and is fixed through the upper crossbeam 11 of the supporting frame.

[0034] like Figure 1 and Figure 2 As shown, an anti-fall cable 4 is provided, and an anti-fall cable reel 41 is sleeved on the output shaft of the rolling shutter motor 71 and rotates with the output shaft. The upper end of the anti-fall cable 4 is fixed on the upper crossbeam 11 of the supporting frame, and the lower end thereof passes through the rolling shutter box and is fixed on the anti-fall cable reel 41.

[0035] like Figure 1 and Figure 2As shown, fixed pulley groups for changing the vertical position of the anti-floating cable are installed on both sides of the rolling shutter box; in this embodiment, the fixed pulley group includes two fixed pulleys, the outer fixed pulley 81 is fixed on the side box body of the rolling shutter box; the inner fixed pulley 8 is fixed on the upper box body of the rolling shutter box; two anti-floating cables 3 are provided corresponding to the fixed pulley group to prevent the rolling shutter from floating, the upper end of the anti-floating cable 3 is fixed on the upper crossbeam 11 of the support frame, and the lower end thereof passes through the rolling shutter box, bypasses the inner fixed pulley 8 and the outer fixed pulley 81 in turn, passes through the rolling shutter box along both sides of the rolling shutter, and is finally fixed on the lower crossbeam of the support frame 1. Figure 4 As shown, in order to prevent the anti-drifting cable 3 from being stuck in operation and ensure the operation of the rolling box, this embodiment is provided with an anti-drifting cable tensioner 31, and the anti-drifting cable 3 is fixed to the upper crossbeam 11 of the supporting frame through the anti-drifting cable tensioner 31.

[0036] like Figure 5 As shown, in order to further prevent the fluttering of the edges on both sides of the rolling curtain, thereby affecting the overall anti-drifting and anti-freezing effects, a row of suction holes 61 are respectively provided on the frames on both sides of the anti-suction net 6 to suck the edges on both sides of the rolling curtain through the pressure difference.

[0037] In order to ensure the smooth operation of the rolling shutter box, a balancing device may be provided in the rolling shutter box to balance and adjust the weight of the winding reel.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An indirect air cooling tower antifreeze device, comprising an antifreeze unit, wherein the antifreeze unit is correspondingly installed on the outer side of the cooling triangle unit of the air cooling tower, characterized in that: The antifreeze unit comprises a support frame fixed on the triangular column of the cooling triangle unit, an anti-suction net fixed inside the support frame, a guide rail fixed on the vertical frame of the support frame, a roller shutter and a roller shutter box; an anti-fall cable and an anti-fall cable reel are provided, the anti-fall cable reel is sleeved on the output shaft of the roller shutter motor, the upper end of the anti-fall cable is fixed on the upper crossbeam of the support frame, and the lower end thereof passes through the roller shutter box and is fixed on the anti-fall cable reel; a roller shutter motor, a roller shutter shaft and a reel for reeling the power cord of the roller shutter motor are provided in the roller shutter box, The output shaft of the rolling shutter motor is connected to one end of the rolling shutter shaft through a transmission assembly; the other end of the rolling shutter shaft is connected to the winding drum shaft through another transmission assembly and drives the winding drum to rotate; the lower end of the rolling shutter is fixed on the rolling shutter shaft, and the upper end of the rolling shutter passes through the rolling shutter box and is fixed through the upper crossbeam of the supporting frame; two pulleys extending outward are respectively provided on both sides of the rolling shutter box, and the rolling shutter box is transversely installed between the two guide rails, and is embedded in the guide rails on both sides through the pulleys so that the rolling shutter box moves up and down along the guide rails as the rolling shutter motor drives the rolling shutter shaft to roll up the rolling shutter.

2. The indirect air cooling tower antifreeze device according to claim 1, characterized in that: The guide rail is a rack, and a moving guide rail for the pulleys on both sides of the rolling shutter box is formed between the rack and the anti-suction net; a balancing gear is provided, and the balancing gear corresponds to the position of the rack and is installed and fixed on both sides of the rolling shutter shaft. The balancing gear moves up and down on the rack along with the rolling shutter shaft.

3. The indirect air cooling tower antifreeze device according to claim 1, characterized in that: An anti-floating cable for preventing the rolling curtain from fluttering and a fixed pulley group for changing the vertical position of the anti-floating cable are provided; the fixed pulley group includes at least two inner and outer fixed pulleys, the outer fixed pulley is fixed on the side box body of the rolling curtain box; the inner fixed pulley is fixed on the upper box body of the rolling curtain box; the upper end of the anti-floating cable is fixed on the upper crossbeam of the supporting frame, and the lower end thereof passes through the rolling curtain box, bypasses the inner fixed pulley and the outer fixed pulley in turn, passes through the rolling curtain box along the outer side, and is finally fixed on the lower crossbeam of the supporting frame.

4. The indirect air cooling tower antifreeze device according to claim 3 is characterized in that: Two anti-floating cables and two corresponding fixed pulley groups are provided, which are respectively used for protecting the two sides of the rolling curtain.

5. The indirect air cooling tower antifreeze device according to claim 3 or 4, characterized in that: An anti-drifting cable tensioner is provided, and the anti-drifting cable is fixed on the upper crossbeam of the supporting frame through the anti-drifting cable tensioner.

6. The indirect air cooling tower antifreeze device according to claim 1, characterized in that: The rolling shutter motor is installed at the central position of the rolling shutter box.

7. The indirect air cooling tower antifreeze device according to claim 1, characterized in that: A balancing device is provided, which is installed in the rolling shutter box and is used to balance and adjust the weight of the winding drum.

8. The indirect air cooling tower antifreeze device according to claim 1, characterized in that: A row of suction holes is respectively arranged on the frames on both sides of the anti-suction net.

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