Air inlet protection device of reverse flow type mechanical ventilation cooling tower

Abstract

The utility model relates to the technical field of air inlet protection devices, in particular to an air inlet protection device of a reverse flow type mechanical ventilation cooling tower, which reduces the complexity of loading and unloading operation of a nylon dense screen by personnel and improves the loading and unloading efficiency and convenience. Comprising a cooling tower body, an exhaust port is formed in the top end of the cooling tower body, an air duct is installed at an air inlet, a fan is installed in the air duct, and the air inlet is formed in the outer side wall of the cooling tower body; the protective net system is installed at the air inlet of the cooling tower body, the fixed pulley is installed on the outer side wall of the cooling tower body, the rope winding system is installed on the outer side wall of the cooling tower body, and the bottom end of the steel wire rope is connected with the rope winding system; the top end of the steel wire rope is connected with the top end of the protective net system.

Description

Technical Field

[0001] The utility model relates to the technical field of air inlet protection devices, in particular to an air inlet protection device for a counter-flow mechanical ventilation cooling tower. Background Art

[0002] The depth of the water absorption pool of the countercurrent cooling tower is generally 2-3 meters. Since the air inlet of the cooling tower cannot be blocked, which affects the air intake, the installed railings are extremely easy to decay due to long-term contact with the humid environment. Workers are always at risk of falling into the water during inspections and adding chemicals to the circulating water. In recent years, accidents of falling from the edge of the cooling tower pool have occurred frequently, causing casualties many times.

[0003] The air inlet of the cooling tower is generally high, and debris on site such as leaves, plastic bags and some small organisms such as flying insects can easily enter the water pool. The water suction pump will suck in debris and cause damage to the water suction pump. More seriously, it may cause the device to shut down. There are many poplar fluff in the north in spring and many fallen leaves in autumn. Ordinary stainless steel protective nets cannot prevent poplar fluff and leaves. The use of dense stainless steel nets affects ventilation and is difficult to clean. Fixed dense nets are installed for a long time, which seriously affects the air intake of the cooling tower and thus affects the cooling efficiency of the cooling tower. The detachable dense net is heavy and difficult to replace, and there is no protection at the air inlet after removal. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a counter-flow mechanical ventilation cooling tower air inlet protection device which reduces the complexity of personnel's loading and unloading operations on nylon fine mesh and improves loading and unloading efficiency and convenience.

[0005] The utility model discloses a counter-flow mechanical ventilation cooling tower air inlet protection device, comprising a cooling tower body, an exhaust port is arranged at the top of the cooling tower body, a wind tube is installed at the air inlet, a fan is installed in the wind tube, and an air inlet is arranged on the outer wall of the cooling tower body; the utility model also comprises a protection net system, a steel wire rope, a rope collection system and a fixed pulley, the protection net system is installed at the air inlet of the cooling tower body, the fixed pulley is installed on the outer wall of the cooling tower body, the rope collection system is installed on the outer wall of the cooling tower body, the bottom end of the steel wire rope is connected to the rope collection system, and the top end of the steel wire rope is connected to the protection net through the guide support of the fixed pulley. The top of the system is connected; when the air inlet of the cooling tower body needs to be protected in spring and autumn, the wire rope is reeled in through the rope retraction system, so that the wire rope drives the protection net system to move upward to the air inlet of the cooling tower body through the guide support of the fixed pulley, so that the protection net system protects the air inlet, and has an isolation effect when poplar catkins and fallen leaves are prevalent in spring and autumn, ensuring the normal operation of the device. When the protection net system needs to be removed, the rope retraction system unwinds the wire rope in reverse, and the wire rope releases the protection net system downward through the fixed pulley to ensure the air volume entering the tower and the normal operation of the cooling tower.

[0006] Preferably, the protective net system includes a protective net frame, a protective net fixing plate, an isolation net, a nylon dense mesh net, a nylon net fixing plate, a nylon net fixing cross bar, a guide rail and an inspection door. The protective net frame is installed on the outer wall of the cooling tower body, the guide rails are installed on both sides of the outer wall of the protective net frame, the protective net fixing plate is installed on the inner wall of the protective net frame, the isolation net is installed on the inner wall of the protective net fixing plate, the nylon net fixing cross bar is installed in the guide rail for sliding up and down, the nylon net fixing plate is connected to the outer wall of the nylon net fixing cross bar, and the nylon dense mesh net is installed on the nylon On the inner wall of the dragon mesh fixing plate, the top of the nylon mesh fixing plate is connected to the top of the steel wire rope, and the inspection door is set on the protective net system; the steel wire rope is reeled in by the rope retracting system, so that the steel wire rope pulls the nylon mesh fixing plate upward, so that the nylon dense mesh cover is installed at the air inlet of the cooling tower body, and the steel wire rope is unreeled by the rope retracting system, so that the nylon dense mesh is moved downward for removal, thereby reducing the complexity of personnel loading and unloading operations, improving loading and unloading efficiency and convenience, and by setting an isolation net, the protective effect of the air inlet after the nylon dense mesh is removed is improved.

[0007] Preferably, the inspection door includes a door lock, a hinge, a protective net and a frame. The frame is rotatably installed on the outer wall of the protective net frame through the hinge, the door lock is arranged on the outer wall of the frame, and the protective net is installed on the inner wall of the frame. By rotating the frame to open it, the convenience of entering the interior of the cooling tower for inspection and maintenance is improved.

[0008] Preferably, the rope collecting system includes a fixed bracket, a driving device, a driving device base, a coupling, a square seat bearing, a shaft, and a rope collecting drum. The fixed bracket is installed on the outer wall of the cooling tower body, the driving device base is installed on the top of the fixed bracket, the driving device is installed on the outer wall of the driving device base, the shaft is rotatably installed on the driving device base through a square seat bearing, the output end of the driving device is connected to the shaft through a coupling, the rope collecting drum is installed on the outer wall of the shaft, and the bottom end of the wire rope is connected to the outer wall of the rope collecting drum; the driving device drives the shaft to rotate, so that the shaft drives the rope collecting drum to reel or unreel the wire rope, thereby improving the convenience of loading and unloading the nylon dense mesh.

[0009] Preferably, an opening is provided at the lower end of the guide rail to improve the operational convenience of loading and unloading the nylon net fixing cross bar.

[0010] Preferably, a U-shaped groove is provided on the fixed pulley to improve the guiding and supporting stability of the fixed pulley on the wire rope.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: when the air inlet of the cooling tower body needs to be protected in spring and autumn, the wire rope is reeled in by the rope retraction system, so that the wire rope drives the protection net system to move upward to the air inlet of the cooling tower body through the guide support of the fixed pulley, so that the protection net system protects the air inlet, and produces an isolation effect when poplar catkins and fallen leaves are prevalent in spring and autumn, thereby ensuring the normal operation of the device. When the protection net system needs to be removed, the rope retraction system unwinds the wire rope in reverse, and the wire rope releases the protection net system downward through the fixed pulley, thereby ensuring the air volume entering the tower and ensuring the normal operation of the cooling tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the local structure of the connection between the wire rope and the fixed pulley;

[0014] Figure 3 It is a partial structural diagram of the connection between the protective net system and the inspection door, etc.;

[0015] Figure 4 It is a schematic diagram of the partial structure of the protection net frame;

[0016] Figure 5 It is a partial structural schematic diagram of the connection between the nylon dense mesh and the nylon mesh fixing plate;

[0017] Figure 6 It is a schematic diagram of the local structure of the connection between the frame and the door lock, etc.;

[0018] Figure 7 It is a schematic diagram of the local structure of the connection between the shaft and the rope drum.

[0019] Markings in the attached drawings: 1. Cooling tower body; 6.1. Protection net system; 6.2. Wire rope; 6.3. Rope collection system; 6.4. Fixed pulley; 6.1.1. Protection net frame; 6.1.2. Protection net fixing plate; 6.1.3. Isolation net; 6.1.4. Nylon dense mesh; 6.1.5. Nylon net fixing plate; 6.1.6. Nylon net fixing cross bar; 6.1.1.4. Guide rail; 6.1.7. Inspection door; 6.1.7.1. Door lock; 6.1.7.2. Hinge; 6.1.7.3 Protection net; 6.1.7.4. Frame; 6.3.1. Fixed bracket; 6.3.2. Drive device; 6.3.3. Drive device base; 6.3.4. Coupling; 6.3.5. Square seat bearing; 6.3.6. Shaft; 6.3.7. Rope collection drum. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 7 As shown, a counter-current mechanical ventilation cooling tower air inlet protection device of the utility model comprises a cooling tower body 1, an exhaust port is arranged at the top of the cooling tower body 1, a wind tube is installed at the air inlet, a fan is installed in the wind tube, and an air inlet is arranged on the outer wall of the cooling tower body 1; it also comprises a protection net system 6.1, a wire rope 6.2, a rope collection system 6.3 and a fixed pulley 6.4, the protection net system 6.1 is installed at the air inlet of the cooling tower body 1, the fixed pulley 6.4 is installed on the outer wall of the cooling tower body 1, the rope collection system 6.3 is installed on the outer wall of the cooling tower body 1, the bottom end of the wire rope 6.2 is connected to the rope collection system 6.3, and the top end of the wire rope 6.2 is connected to the top end of the protection net system 6.1 through the guide support of the fixed pulley 6.4;

[0023] like Figure 5 As shown, the protection net system 6.1 includes a protection net frame 6.1.1, a protection net fixing plate 6.1.2, an isolation net 6.1.3, a nylon dense mesh 6.1.4, a nylon net fixing plate 6.1.5, a nylon net fixing crossbar 6.1.6, a guide rail 6.1.1.4 and an inspection door 6.1.7. The protection net frame 6.1.1 is installed on the outer wall of the cooling tower body 1, the guide rail 6.1.1.4 is installed on both sides of the outer wall of the protection net frame 6.1.1, and the protection net fixing plate 6.1.2 is installed on the protection net frame On the inner wall of 6.1.1, the isolation net 6.1.3 is installed on the inner wall of the protective net fixing plate 6.1.2, the nylon net fixing cross bar 6.1.6 is installed in the guide rail 6.1.1.4 by sliding up and down, the nylon net fixing plate 6.1.5 is connected to the outer wall of the nylon net fixing cross bar 6.1.6, the nylon dense mesh 6.1.4 is installed on the inner wall of the nylon net fixing plate 6.1.5, the top of the nylon net fixing plate 6.1.5 is connected to the top of the wire rope 6.2, and the inspection door 6.1.7 is set on the protective net system 6.1;

[0024] In this embodiment, when the air inlet of the cooling tower body 1 needs to be protected in spring and autumn, the wire rope 6.2 is reeled in by the rope reeling system 6.3, so that the wire rope 6.2 drives the protection net system 6.1 to move upward to the air inlet of the cooling tower body 1 through the guide support of the fixed pulley 6.4, so that the protection net system 6.1 protects the air inlet, and has an isolation effect when poplar catkins and fallen leaves are prevalent in spring and autumn, thereby ensuring the normal operation of the device. When the protection net system 6.1 needs to be removed, the rope reeling system 6.3 unwinds the wire rope 6.2 in the reverse direction, and the wire rope 6.2 releases the protection net system 6.1 downward through the fixed pulley 6.4, thereby ensuring the air volume entering the tower and ensuring the normal operation of the cooling tower.

[0025] Example 2

[0026] On the basis of Example 1, Figure 6 As shown, the inspection door 6.1.7 includes a door lock 6.1.7.1, a hinge 6.1.7.2, a protective net 6.1.7.3 and a frame 6.1.7.4. The frame 6.1.7.4 is rotatably mounted on the outer wall of the protective net frame 6.1.1 through the hinge 6.1.7.2, the door lock 6.1.7.1 is arranged on the outer wall of the frame 6.1.7.4, and the protective net 6.1.7.3 is mounted on the inner wall of the frame 6.1.7.4;

[0027] like Figure 7 As shown, the rope collection system 6.3 includes a fixed bracket 6.3.1, a driving device 6.3.2, a driving device base 6.3.3, a coupling 6.3.4, a square seat bearing 6.3.5, a shaft 6.3.6, and a rope collection drum 6.3.7. The fixed bracket 6.3.1 is mounted on the outer wall of the cooling tower body 1, the driving device base 6.3.3 is mounted on the top of the fixed bracket 6.3.1, the driving device 6.3.2 is mounted on the outer wall of the driving device base 6.3.3, the shaft 6.3.6 is rotatably mounted on the driving device base 6.3.3 through a square seat bearing 6.3.5, the output end of the driving device 6.3.2 is connected to the shaft 6.3.6 through a coupling 6.3.4, the rope collection drum 6.3.7 is mounted on the outer wall of the shaft 6.3.6, and the bottom end of the wire rope 6.2 is connected to the outer wall of the rope collection drum 6.3.7;

[0028] like Figure 5 As shown, the lower end of the guide rail 6.1.1.4 is provided with an opening;

[0029] like Figure 2 As shown, the fixed pulley 6.4 is provided with a U-shaped groove;

[0030] In this embodiment, the steel wire rope 6.2 is reeled in by the rope retracting system 6.3, so that the steel wire rope 6.2 pulls the nylon mesh fixing plate 6.1.5 upward, so that the nylon dense mesh 6.1.4 is covered at the air inlet of the cooling tower body 1, and the steel wire rope 6.2 is unreeled by the rope retracting system 6.3, so that the nylon dense mesh 6.1.4 is moved downward for removal, thereby reducing the complexity of personnel loading and unloading operations and improving loading and unloading efficiency and convenience. By setting the isolation net 6.1.3, the protective effect of the air inlet after the nylon dense mesh 6.1.4 is removed is improved, and by rotating the frame 6.1.7.4 to open it, the convenience of entering the interior of the cooling tower body 1 for inspection and maintenance is improved.

[0031] The utility model discloses a counter-current mechanical ventilation cooling tower air inlet protection device. When the air inlet of the cooling tower body 1 needs to be protected in spring and autumn, the steel wire rope 6.2 is wound up by the rope-taking system 6.3, so that the steel wire rope 6.2 drives the protection net system 6.1 to move upward to the air inlet of the cooling tower body 1 through the guide support of the fixed pulley 6.4, so that the protection net system 6.1 protects the air inlet, and has an isolation effect when catkins and fallen leaves are prevalent in spring and autumn, thereby ensuring the normal operation of the device. When the protection net system 6.1 needs to be removed, the rope-taking system 6.3 unwinds the steel wire rope 6.2 in the reverse direction, and the steel wire rope 6.2 releases the protection net system 6.1 downward through the fixed pulley 6.4.

[0032] The driving device 6.3.2 and coupling 6.3.4 of the counter-flow mechanical ventilation cooling tower air inlet protection device of the utility model are purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual without the need for the technicians in this field to make creative efforts.

[0033] 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 technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A counter-flow mechanical ventilation cooling tower air inlet protection device, comprising a cooling tower body (1), wherein the top of the cooling tower body (1) is provided with an exhaust port, a wind tube is installed at the air inlet, a fan is installed in the wind tube, and an air inlet is provided on the outer wall of the cooling tower body (1); characterized in that: It also includes a protective net system (6.1), a steel wire rope (6.2), a rope collection system (6.3) and a fixed pulley (6.4), wherein the protective net system (6.1) is installed at the air inlet of the cooling tower body (1), the fixed pulley (6.4) is installed on the outer wall of the cooling tower body (1), the rope collection system (6.3) is installed on the outer wall of the cooling tower body (1), the bottom end of the steel wire rope (6.2) is connected to the rope collection system (6.3), and the top end of the steel wire rope (6.2) is connected to the top end of the protective net system (6.1) through the guide support of the fixed pulley (6.4).

2. A counter-flow mechanical ventilation cooling tower air inlet protection device as claimed in claim 1, characterized in that: The protective net system (6.1) comprises a protective net frame (6.1.1), a protective net fixing plate (6.1.2), an isolation net (6.1.3), a nylon dense mesh (6.1.4), a nylon net fixing plate (6.1.5), a nylon net fixing crossbar (6.1.6), a guide rail (6.1.1.4) and an inspection door (6.1.7). The protective net frame (6.1.1) is installed on the outer side wall of the cooling tower body (1). The guide rail (6.1.2) is installed on the outer side wall of the cooling tower body (1). 6.1.1.4) are installed on both sides of the outer wall of the protective net frame (6.1.1), and the protective net fixing plate (6.1.2) is installed on the protective net frame ( The isolation net (6.1.3) is installed on the inner wall of the protective net fixing plate (6.1.2), the nylon net fixing cross bar (6.1.6) is installed in the guide rail (6.1.1.4) by sliding up and down, the nylon net fixing plate (6.1.5) is connected to the outer wall of the nylon net fixing cross bar (6.1.6), the nylon dense mesh (6.1.4) is installed on the inner wall of the nylon net fixing plate (6.1.5), the top of the nylon net fixing plate (6.1.5) is connected to the top of the steel wire rope (6.2), and the inspection door (6.1.7) is set on the protective net system (6.1).

3. A counter-flow mechanical ventilation cooling tower air inlet protection device as claimed in claim 2, characterized in that: The inspection door (6.1.7) comprises a door lock (6.1.7.1), a hinge (6.1.7.2), a protective net (6.1.7.3) and a frame (6.1.7.4); the frame (6.1.7.4) is rotatably mounted on the outer wall of the protective net frame (6.1.1) through the hinge (6.1.7.2); the door lock (6.1.7.1) is arranged on the outer wall of the frame (6.1.7.4); and the protective net (6.1.7.3) is mounted on the inner wall of the frame (6.1.7.4).

4. A counter-flow mechanical ventilation cooling tower air inlet protection device as claimed in claim 1, characterized in that: The rope collection system (6.3) comprises a fixed bracket (6.3.1), a driving device (6.3.2), a driving device base (6.3.3), a coupling (6.3.4), a square seat bearing (6.3.5), a shaft (6.3.6), and a rope collection drum (6.3.7). The fixed bracket (6.3.1) is mounted on the outer wall of the cooling tower body (1), the driving device base (6.3.3) is mounted on the top of the fixed bracket (6.3.1), and the driving device (6 .3.2) is mounted on the outer wall of the driving device base (6.3.3), the shaft (6.3.6) is rotatably mounted on the driving device base (6.3.3) through a square seat bearing (6.3.5), the output end of the driving device (6.3.2) is connected to the shaft (6.3.6) through a coupling (6.3.4), the rope drum (6.3.7) is mounted on the outer wall of the shaft (6.3.6), and the bottom end of the wire rope (6.2) is connected to the outer wall of the rope drum (6.3.7).

5. A counter-flow mechanical ventilation cooling tower air inlet protection device as claimed in claim 2, characterized in that: The lower end of the guide rail (6.1.1.4) is provided with an opening.

6. A counter-flow mechanical ventilation cooling tower air inlet protection device as claimed in claim 1, characterized in that: The fixed pulley (6.4) is provided with a U-shaped groove.

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