CN217764530U

CN217764530U - Cooling tower fan control device

Info

Publication number: CN217764530U
Application number: CN202221624744.7U
Authority: CN
Inventors: 王强; 陈钢
Original assignee: Keling Electromechanical Technology Shanghai Co ltd
Current assignee: Keling Electromechanical Technology Shanghai Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-08
Anticipated expiration: 2032-06-27

Abstract

The utility model belongs to the technical field of the cooling tower technique and specifically relates to a cooling tower fan controlling means is related to, including the tower body, be provided with inlet tube and the outlet pipe that communicates with required cooling device on the tower body, the top of cooling tower is provided with the fan, be provided with the fixed plate on the lateral wall that the fan was kept away from to the tower body, be fixed with the temperature and humidity sensor of the outdoor wet bulb temperature of detection and the controller of being connected with the humidity sensor electricity on the fixed plate, the fan is connected to the controller electricity, and the controller is according to the signal control fan rotational speed of receiving temperature and humidity sensor, be provided with the damper who reduces the vibrations that temperature and humidity sensor receives on the fixed plate. This application has the effect that reduces cooling tower fan power consumption.

Description

Cooling tower fan control device

Technical Field

The application relates to the technical field of cooling towers, in particular to a fan control device of a cooling tower.

Background

The cooling tower is a device which uses cooling water as a circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the cold is an evaporation heat dissipation device which utilizes the principle that cooling water is in contact with air in a flowing mode to perform heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate waste heat generated in industry or refrigeration air conditioners to reduce the water temperature, and therefore normal operation of the system is guaranteed.

The inside of cooling tower has condensing coil, and condensing coil's both ends are put through with the equipment of required cooling respectively, and the intraductal circulation of condensing coil flows and has the circulating water, and the high temperature circulating water that flows out gets into condensing coil in the equipment of follow, cools down in the cooling tower, and the circulating water through the cooling gets into the equipment once more and cools down. The top of the cooling tower is provided with a fan, and the frequency of the fan of the cooling tower is required to be controlled to control the temperature of cooling water in the working process. In the related technology, a thermometer is installed at the position of a water outlet of a condensing coil and used for monitoring the temperature of circulating water, and a worker adjusts the frequency of a fan through the temperature of the thermometer.

In view of the above-mentioned related art, the applicant believes that when the ambient temperature decreases, if the worker does not timely adjust the frequency of the fan, a large amount of power resources are consumed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the power consumption of the cooling tower fan, the application provides a cooling tower fan control device.

The application provides a cooling tower fan controlling means adopts following technical scheme:

the utility model provides a cooling tower fan controlling means, includes the tower body, be provided with inlet tube and the outlet pipe that communicates with required cooling device on the tower body, the top of cooling tower is provided with the fan, the tower body is kept away from be provided with the fixed plate on the lateral wall of fan, be fixed with the temperature and humidity sensor of the outdoor wet bulb temperature of detection on the fixed plate and the controller of being connected with the temperature and humidity sensor electricity, the controller electricity is connected the fan, just the controller is according to receiving temperature and humidity sensor's signal control the fan rotational speed, be provided with the reduction on the fixed plate the damper of the vibrations that temperature and humidity sensor receives.

Through adopting above-mentioned technical scheme, the cooling tower carries out the during operation, temperature and humidity sensor detects external environment's wet bulb temperature, transmit temperature and humidity signal to controller, the controller is according to the rotational speed of the signal control fan of receipt, when wet bulb temperature is too high, the controller control fan improves the rotational speed, increase the heat dissipation capacity, when wet bulb temperature reduces, controller control fan underspin, control is accurate, when guaranteeing the normal work of cooling tower, can reduce fan unnecessary power consumption, the effect that has the power of saving. The cooling tower can shake in the course of the work, and damper can reduce the impact that temperature and humidity sensor received in the course of the work, guarantees temperature and humidity sensor's test stability to guarantee the control accuracy of controller to the fan.

Preferably, the damping mechanism comprises a connecting plate, an elastic part and a mounting plate, the connecting plate is fixed on the fixing plate, the elastic part is fixed on the top of the connecting plate, the mounting plate is fixed on one end, away from the connecting plate, of the elastic part, and the temperature and humidity sensor is fixed on one side, away from the elastic part, of the connecting plate.

Through adopting above-mentioned technical scheme, when the cooling tower carries out the during operation, the tower body can produce vibrations, and when vibrations transmit to the elastic component, the elastic component absorbs vibrations through self deformation, reduces the vibrations that the mounting panel received, improves the stability of temperature and humidity sensor on the mounting panel.

Preferably, the top of the mounting plate is provided with a support plate, the support plate is connected with a sliding plate in a sliding manner in the vertical direction, the support plate is provided with a locking assembly for fixing the sliding plate, and the sliding plate abuts against the top of the temperature and humidity sensor.

Through adopting above-mentioned technical scheme, when installation temperature and humidity sensor, sliding plate and mounting panel form the centre gripping to temperature and humidity sensor jointly, improve the stability fixed to temperature and humidity sensor, and the sliding plate is convenient for adjust the position of sliding plate according to temperature and humidity sensor's size.

Preferably, the locking assembly comprises a locking bolt and a locking nut, a waist-shaped hole is formed in the support plate, the locking bolt slides in the waist-shaped hole, the locking bolt penetrates through the sliding plate, the locking nut is in threaded connection with the locking bolt, and the locking nut abuts against one side, far away from the support plate, of the sliding plate.

By adopting the technical scheme, when the position of the sliding plate needs to be adjusted, only the locking nut needs to be unscrewed, so that the locking bolt can drive the sliding plate to slide, when the sliding plate is abutted to the rear of the temperature and humidity sensor, the sliding plate can be fixed by screwing the locking nut, and the control mode is flexible.

Preferably, a first mounting groove is formed in the top of the mounting plate, a second mounting groove is formed in the bottom of the sliding plate, and two sides of the temperature and humidity sensor are respectively clamped in the first mounting groove and the second mounting groove.

By adopting the technical scheme, the upper side and the lower side of the temperature and humidity sensor are clamped in the first mounting groove and the second mounting groove, so that the possibility of movement of the temperature and humidity sensor in the working process is reduced, and the test stability of the temperature and humidity sensor is improved.

Preferably, elastic cushions are arranged in the first mounting groove and the second mounting groove, and two sides of the temperature and humidity sensor are abutted to the elastic cushions respectively.

Through adopting above-mentioned technical scheme, the vibration that temperature and humidity sensor received is further slowed down to the cushion.

Preferably, a protection box is installed on the fixing plate, a movable door is installed on the protection box, and the controller is installed in the protection box.

Through adopting above-mentioned technical scheme, the guard box can form the protection to the controller, reduces the controller and the external environment and contacts the possibility that takes place to damage.

Preferably, the bottom of the protection box is provided with a plurality of wiring holes.

Through adopting above-mentioned technical scheme, the wiring hole is convenient for the controller to carry out the electricity through signal line and temperature and humidity sensor and fan and is connected, and the wiring hole is located the below, can reduce the possibility that the rainwater got into the guard box.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the cooling tower works, the temperature and humidity sensor detects the temperature of a wet bulb of the external environment and transmits temperature and humidity signals to the controller, the controller controls the rotating speed of the fan according to the received signals, when the temperature of the wet bulb is too high, the controller controls the fan to increase the rotating speed and increase the heat dissipation capacity, when the temperature of the wet bulb is reduced, the controller controls the fan to reduce the rotating speed, the control is accurate, the normal work of the cooling tower is ensured, meanwhile, the unnecessary electric energy consumption of the fan can be reduced, and the effect of saving electric energy is achieved;

2. the elastic piece can absorb the vibrations that the cooling tower during operation produced, reduces the impact that temperature sensor produced in the course of the work, improves the stability of temperature and humidity sensor test, improves the control accuracy of controller to the fan.

Drawings

FIG. 1 is a schematic view of the embodiment showing the overall structure;

fig. 2 is a partial exploded view of the temperature and humidity sensor mounting structure according to the present embodiment;

fig. 3 is a schematic view of the bottom structure of the movable plate according to the present embodiment.

Reference numerals: 1. a tower body; 2. a water inlet pipe; 3. a water outlet pipe; 4. a fan; 5. a fixing plate; 6. a temperature and humidity sensor; 7. a controller; 8. a damping mechanism; 81. a connecting plate; 82. an elastic member; 821. a spring; 83. mounting a plate; 9. a first mounting groove; 10. a support plate; 11. a sliding plate; 12. a locking assembly; 121. locking the bolt; 122. locking the nut; 13. a second mounting groove; 14. an elastic pad; 15. a waist-shaped hole; 16. a protection box; 17. a movable door; 18. and (6) wiring holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a cooling tower fan controlling means.

Referring to fig. 1, a cooling tower fan control device comprises a tower body 1, wherein a water inlet pipe 2 and a water outlet pipe 3 communicated with a required cooling device are arranged on the tower body 1 in a penetrating mode, and a fan 4 for bringing heat inside the tower body 1 into air is installed at the top end of the tower body 1. A fixed plate 5 is welded on the side wall of the tower body 1 in the vertical direction, and a temperature and humidity sensor 6 for detecting the temperature of an outdoor wet bulb and a controller 7 for controlling the rotating speed of the fan 4 are installed on the fixed plate 5; the controller 7, the fan 4 and the temperature and humidity sensor 6 are electrically connected through signal lines.

When the cooling tower works, the temperature and humidity sensor 6 collects the temperature of a wet bulb of the external environment, the controller 7 can receive signals of the temperature and humidity sensor 6, and when the temperature of the wet bulb is high, the controller 7 controls the rotating speed of the fan 4 to rise, so that the cooling effect on the cooling tower is improved; when the wet bulb temperature is low, the controller 7 controls the rotation speed of the fan 4 to decrease. By automatically controlling the fan 4 of the cooling tower, the unnecessary electric energy consumption of the fan 4 can be reduced while the normal work of the cooling tower is ensured, and the effect of saving electric energy is achieved.

When the fan 4 works, moist hot air in the tower body 1 can be discharged into the air, so that the temperature and humidity at the position close to the fan 4 are different from the temperature and humidity in actual air, the temperature and humidity sensor 6 is arranged at the middle height position of the tower body 1 far away from the fan 4, and the accuracy of test data of the temperature and humidity sensor 6 can be ensured.

Referring to fig. 1 and 2, when the cooling tower is in operation, the fan 4 rotates at a high speed, so that the tower body 1 vibrates, and therefore the damping mechanism 8 for reducing the vibration of the temperature and humidity sensor 6 is mounted on the fixing plate 5. The damping mechanism 8 includes a connecting plate 81, an elastic member 82, and a mounting plate 83, and in this embodiment, a plurality of springs 821 are used as the elastic member 82. The connecting plate 81 is fixed to the fixing plate 5 by bolts, the spring 821 is welded to the top of the connecting plate 81, the mounting plate 83 is welded to the top end of the spring 821, and the temperature/humidity sensor 6 is fixed to the top of the mounting plate 83. When the temperature and humidity testing device works, most of vibration is absorbed through the plurality of springs 821 before the vibration of the tower body 1 is transmitted to the temperature and humidity sensor 6, so that the temperature and humidity sensor 6 can test stably, the testing accuracy of the temperature and humidity sensor 6 is improved, and the control effect of the controller 7 on the fan 4 is improved.

Referring to fig. 1 and 2, a first mounting groove 9 is formed in the top end of the mounting plate 83, and the temperature and humidity sensor 6 is clamped in the first mounting groove 9 and fixed to the mounting plate 83 through bolts. The mounting plate 83 is located between the tower body 1 and the temperature and humidity sensor 6 and welded with the support plate 10, the support plate 10 is provided with the sliding plate 11 in a sliding mode in the vertical direction, and the support plate 10 is provided with the locking assembly 12 for locking the support plate 10. Referring to fig. 2 and 3, the bottom of the sliding plate 11 is provided with a second mounting groove 13, when the temperature and humidity sensor 6 is mounted, the position of the sliding plate 11 is adjusted according to the height of the temperature and humidity sensor 6, so that the top of the temperature and humidity sensor 6 is clamped in the second mounting groove 13, the sliding plate 11 is fixed, the temperature and humidity sensor 6 is clamped between the mounting plate 83 and the sliding plate 11, the fixing stability of the temperature and humidity sensor 6 is improved, the possibility that the temperature and humidity sensor 6 moves in the working process is reduced, and the testing stability of the temperature and humidity sensor 6 is improved.

Referring to fig. 2 and 3, the elastic pad 14 is adhered to the first mounting groove 9 and the second mounting groove 13, so that the two sides of the temperature and humidity sensor 6 are abutted against the elastic pad 14, the elastic pad 14 can further absorb shock, rigid contact of the temperature and humidity sensor 6 can be reduced, and the service life of the temperature and humidity sensor 6 is prolonged.

The locking assembly 12 includes two locking bolts 121 and two locking nuts 122, two waist-shaped holes 15 for the locking bolts 121 to penetrate are formed in the support plate 10, the two waist-shaped holes 15 are parallel to each other, and the two locking bolts 121 penetrate through the two waist-shaped holes 15 respectively. The screw head of the locking bolt 121 is located on the side of the support plate 10 away from the sliding plate 11, the locking bolt 121 is inserted through the sliding plate 11 via the slotted hole 15, the locking nut 122 is connected to the locking bolt 121 by screw threads, and the locking nut 122 abuts against the side of the sliding plate 11 away from the support plate 10. When the position of the sliding plate 11 needs to be adjusted, the sliding plate 11 can be moved only by loosening the lock nut 122, and after the second mounting groove 13 of the sliding plate 11 is clamped in the temperature and humidity sensor 6, the sliding plate 11 can be fixed by tightening the lock nut 122, so that the operation is simple.

Referring to fig. 1, a protective box 16 for protecting the controller 7 is mounted on the fixed plate 5 at an upper position by bolts, and the controller 7 is mounted in the protective box 16. The protection box 16 is connected with a movable door 17 capable of being locked, so that a worker can conveniently maintain the controller 7. The bottom of the protection box 16 is provided with a plurality of wiring holes 18, which facilitate the signal wires connected with the controller 7 to pass through. The wiring holes 18 are located below the protection box 16, so that the possibility that rainwater enters the protection box 16 in severe weather such as rainy days can be reduced.

The implementation principle of the cooling tower fan control device in the embodiment of the application is as follows: when the cooling tower works, the temperature and humidity sensor 6 collects the temperature of a wet bulb of the external environment, the controller 7 receives signals of the temperature and humidity sensor 6, and when the temperature of the wet bulb is higher, the controller 7 controls the rotating speed of the fan 4 to rise, so that the heat dissipation effect on the cooling tower is improved; when the wet bulb temperature is low, the controller 7 controls the rotating speed of the fan 4 to be reduced, so that unnecessary electric energy consumption of the fan 4 can be reduced, and the effect of saving electric energy is achieved; in the working process, the elastic part 82 can absorb the vibration generated by the tower body 1, so that the temperature and humidity sensor 6 is kept stable as much as possible, the measurement stability of the temperature and humidity sensor 6 is improved, and the control precision of the controller 7 on the fan 4 is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cooling tower fan controlling means, includes tower body (1), be provided with inlet tube (2) and outlet pipe (3) with required cooling device intercommunication on tower body (1), the top of cooling tower is provided with fan (4), its characterized in that: keep away from tower body (1) be provided with fixed plate (5) on the lateral wall of fan (4), be fixed with temperature and humidity sensor (6) and controller (7) of being connected with the humidity sensor electricity that detect outdoor wet bulb temperature on fixed plate (5), controller (7) electricity is connected fan (4), just controller (7) are according to receiving temperature and humidity sensor's (6) signal control fan (4) rotational speed, be provided with the reduction on fixed plate (5) damper (8) of the vibrations that temperature and humidity sensor (6) received.

2. The cooling tower fan control device of claim 1, wherein: damper (8) are including connecting plate (81), elastic component (82) and mounting panel (83), connecting plate (81) are fixed in fixed plate (5), elastic component (82) are fixed in connecting plate (81) top, mounting panel (83) are fixed in elastic component (82) are kept away from the one end of connecting plate (81), temperature and humidity sensor (6) are fixed in connecting plate (81) are kept away from one side of elastic component (82).

3. The cooling tower fan control device of claim 2, wherein: the top of mounting panel (83) is provided with backup pad (10), it is connected with sliding plate (11) to slide along vertical direction on backup pad (10), be provided with on backup pad (10) with sliding plate (11) carry out fixed locking Assembly (12), sliding plate (11) butt in the top of temperature and humidity sensor (6).

4. The cooling tower fan control device of claim 3, wherein: locking Assembly (12) are including locking bolt (121) and lock nut (122), waist shape hole (15) have been seted up on backup pad (10), locking bolt (121) slide in waist shape hole (15), just locking bolt (121) wear to locate sliding plate (11), lock nut (122) threaded connection in locking bolt (121), just lock nut (122) butt in sliding plate (11) is kept away from one side of backup pad (10).

5. The cooling tower fan control device of claim 3, wherein: first mounting groove (9) have been seted up at the top of mounting panel (83), second mounting groove (13) have been seted up to the bottom of sliding plate (11), the both sides of temperature and humidity sensor (6) joint respectively in first mounting groove (9) with second mounting groove (13).

6. The cooling tower fan control device of claim 5, wherein: elastic cushions (14) are arranged in the first mounting groove (9) and the second mounting groove (13), and two sides of the temperature and humidity sensor (6) are respectively abutted to the elastic cushions (14).

7. The cooling tower fan control device of claim 1, wherein: install guard box (16) on fixed plate (5), install dodge gate (17) on guard box (16), controller (7) install in guard box (16).

8. The cooling tower fan control device of claim 7, wherein: the bottom of the protection box (16) is provided with a plurality of wiring holes (18).