CN103791572A - Ventilating and cooling system provided with inertia filter and water spraying chamber and used for power plant - Google Patents

Abstract

The ventilation and cooling system for a power plant with an inertial filter and a water spray chamber disclosed by the present invention includes a ventilation and cooling device and an inertial filter respectively arranged inside and outside the wall, and the ventilation and cooling device and the inertial filter are communicated through an air supply pipe , The ventilation and cooling device is arranged between the wall and the power plant building, and communicated with the power plant building through the air duct. The ventilation and cooling system for a power plant of the present invention not only solves the problems of large air volume and difficult arrangement of air pipes in the ventilation system of the power plant, but also can filter out sand and dust outside through the inertial filter and reduce the air intake resistance.

Description

Ventilation and cooling systems for power plants with inertial filters and spray chambers

technical field

The invention belongs to the technical field of air-conditioning equipment, and in particular relates to a ventilation and cooling system for a power plant with an inertial filter and a water spray chamber.

Background technique

In places where the ventilation system is applied, such as the main building in a power plant, in order to meet the requirements of indoor temperature drop and air exchange times, the air volume of the ventilation system is often large, resulting in a large air duct size. At present, due to the limited space in the factory building, it is difficult to arrange the air ducts in an orderly manner, so we can treat the air in a simple and efficient way to make it have a certain temperature drop, thereby reducing the air supply volume and meeting the indoor cooling requirements. The water spray chamber is an air heat and humidity treatment equipment in direct contact with air and water. Water of different temperatures is sprayed into mist droplets and directly contacted with the air, which can realize various air heat and humidity treatment processes, and the cooling effect is obvious and easy to realize.

Power plants are generally built in areas with relatively harsh conditions. After the ventilation and cooling system has been in operation for a period of time, dust and sand in the outdoor air will adhere to the nozzles and other parts of the system, which will greatly reduce the cooling effect. In view of the deficiencies in the traditional ventilation methods of power plant buildings, the organic combination of inertial filters and hydrodynamic water spray chambers can alleviate the problems of large air volume and difficult air duct layout in power plant ventilation systems, and the inertial filters can make the outdoor Sand and dust and other sundries are filtered, making the wind resistance less.

Contents of the invention

The object of the present invention is to provide a ventilation and cooling system for a power plant with an inertial filter and a water spray chamber, which not only solves the problems of large air volume in the ventilation system of a power plant and difficult arrangement of air ducts, but also can pass through the inertial filter. Sand and gravel dust are filtered out, reducing the air intake resistance.

The technical scheme adopted in the present invention, the ventilation and cooling system for a power plant with an inertial filter and a water spray chamber, includes a ventilation and cooling device and an inertial filter respectively arranged inside and outside the wall, and the ventilation and cooling device and the inertial filter pass through The air supply pipe is connected, and the ventilation and cooling device is arranged between the wall and the power plant building, and communicated with the power plant building through the air pipe.

The present invention is also characterized in that,

The inertial filter includes an inertial filter housing, and the opposite side walls of the inertial filter housing are respectively provided with an air inlet and an air supply port; the inertial filter housing is provided with power blades and air supply ports in sequence according to the flow direction of the air after entering. As for the fan, a dust collecting tank is arranged on the outer side of the bottom of the inertial filter housing corresponding to the bottom of the power blade, and a dust exhaust fan is connected to the lower part of the dust collecting tank.

The ventilation and cooling device includes a device shell, and the opposite side walls of the device shell are respectively provided with an air inlet window and an air supply window; the inside of the device shell is sequentially provided with a rectifying grid, a target spray device and The water retaining plate, the rectifying grid, the target spray device and the lower part of the water retaining plate are provided with a spray pool. A float valve, a water filter and a water overflow are respectively arranged inside.

The drain pipe is provided with a valve; the float valve is connected with a water supply pipe; the water filter is connected with a circulating water pipe; and the water overflow device is connected with an overflow pipe.

The circulating water pipe is respectively connected with a first water supply pipe and a second water supply pipe through a three-way regulating valve, a water pump is arranged on the second water supply pipe, and the second water supply pipe is connected with the connecting pipe.

The first water supply pipe, the second water supply pipe and the connecting pipe are all arranged outside the ventilation and cooling device.

The target spraying device includes two rows of vertical and opposite spraying water pipes, the two rows of spraying water pipes are connected with the connecting pipe, and each row of spraying water pipes is provided with a plurality of target nozzles for spraying at intervals, and the two rows of spraying water pipes A hydrodynamic spray chamber is formed between them.

Multiple target nozzles are evenly set at equal distances.

The target nozzle includes a nozzle body and a target plate. The nozzle body includes a target head, a target seat and a target rod connected sequentially from top to bottom. The outer side of the lower end of the target rod is provided with external threads, and the center of the nozzle body is from bottom to top. A tapered tapered flow channel is provided, and the upper end of the tapered tapered flow channel is provided with a water outlet. The target plate is set above the nozzle body. The upper end of the target plate is provided with a knob, and the lower end of the target plate is provided with a cylindrical striker, and the knob passes through the target plate and is connected with the cylindrical striker as a whole.

The center line of the knob, the cylindrical striker and the tapered tapered flow channel are on the same straight line.

The beneficial effects of the present invention are:

(1) The ventilation and cooling system for a power plant of the present invention uses an inertial filter to filter outdoor sand, stones and dust, and the air passes through the power blades, so that the dust and sand are collected into the dust collection tank under the action of gravity, and the air intake resistance is small , the purified air is sent to the fluid power spray chamber by the blower to exchange heat and moisture with the air to prevent dust from clogging the nozzle.

(2) In the ventilation and cooling system for power plants of the present invention, heat and moisture exchange occurs between the air and water in the hydrodynamic water spraying room. In the case of lower requirements, the air supply volume is reduced, which is convenient for indoor air duct layout.

(3) In the ventilation and cooling system for power plants of the present invention, the hydrodynamic water spray chamber adopts a target nozzle with a striker, and the collision between the high-speed water flow and the striker generates ultrasonic waves, and the atomization angle is close to 180°, and the atomization effect is good. Save water and reduce energy consumption.

Description of drawings

Fig. 1 is the structural representation of the ventilating cooling system of power plant of the present invention;

Fig. 2 is the working principle figure of inertial filter in the ventilating and cooling system of power plant of the present invention;

Fig. 3 is a schematic structural view of the target nozzle in the ventilation and cooling system for the power plant of the present invention.

In the figure, 1. Inertial filter housing, 2. Power blade, 3. Air supply fan, 4. Dust exhaust fan, 5. Dust collection tank, 6. Wall, 7. Rectifier grid, 8. Target nozzle, 9. Water baffle, 10. Float valve, 11. Spray pool, 12. Water supply pipe, 13. Water filter, 14. Circulating water pipe, 15. First water supply pipe, 16. Three-way regulating valve, 17. Water pump , 18. Spray water pipe, 19. Overflow device, 20. Overflow pipe, 21. Drain pipe, 22. Fluid power spray chamber, 23. Second water supply pipe, 24. Connecting pipe, 25. Target plate, 26. Target Head, 27. target seat, 28. target rod, 29. external thread, 30. conical tapered runner, 31. screw rod, 32. knob, 33. cylindrical firing pin.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The ventilation and cooling system for a power plant with an inertial filter and a water spray chamber of the present invention has a structure as shown in Figure 1, comprising a ventilation and cooling device arranged in the wall 6, an inertial filter arranged outside the wall 6, and ventilation The cooling device and the inertial filter are connected through the air supply pipe, and the ventilation and cooling device is arranged between the wall body 6 and the power plant building, and communicated with the power plant building through the air pipe.

Inertial filter, its structure is shown in Fig. 1, comprises inertial filter housing 1, and the opposite side walls of inertial filter housing 1 are respectively provided with air inlet and air outlet, and inertial filter housing 1 presses After the air enters, the flow direction is provided with power blades 2 and blower fans 3 in sequence. The bottom of the power blades 2 corresponds to the outer side of the bottom of the inertial filter housing 1. There is a dust collection tank 5, and the lower part of the dust collection tank 5 is connected to a dust exhaust fan 4. .

The ventilation and cooling device has a structure as shown in Figure 1, including a device housing, and the opposite side walls of the device housing are respectively provided with an air inlet window and an air supply window; The rectifying grid 7, the target spraying device and the water retaining plate 9, the lower part of the rectifying grid 7, the target spraying device and the water retaining plate 9 are provided with a spray pool 11, and the lower ends of the rectifying grid 7 and the water retaining plate 9 are all arranged on the sprayer. In the shower pool 11, the spray pool 11 is connected with a drain pipe 21, and the spray pool 11 is respectively provided with a ball float valve 10, a water filter 13 and a water overflow device 19.

The drain pipe 21 is provided with a valve; the float valve 10 is connected with the water supply pipe 12 ; the water filter 13 is connected with the circulating water pipe 14 ; the overflow device 19 is connected with the overflow pipe 20 .

The circulating water pipe 14 is respectively connected to a first water supply pipe 15 and a second water supply pipe 23 through a three-way regulating valve 16 . The water pump 17 is arranged on the second water supply pipe 23 , and the second water supply pipe 23 is connected with the connecting pipe 24 . The first water supply pipe 15, the second water supply pipe 23, and the connecting pipe 24 are all arranged outside the ventilation and cooling device. The target spraying device includes two rows of vertical and opposite spraying water pipes 18, the two rows of spraying water pipes 18 are connected to the connecting pipe 24, and each row of spraying water pipes 18 is provided with a plurality of target nozzles 8 for spraying at intervals. A hydrodynamic water spray chamber 22 is formed between the two rows of spray water pipes 18, and the lower ends of the two rows of spray water pipes 18 protrude from the device housing; a plurality of target nozzles 8 are evenly arranged at equal distances.

The structure of target type nozzle 8 is shown in Figure 3, comprises nozzle main body and target plate 25, and nozzle main body comprises the target head 26 that connects successively from top to bottom, target seat 27 and target bar 28, the outer side of target bar 28 lower ends An external thread 29 is provided, and the center of the nozzle main body is provided with a tapered tapered flow channel 30 from bottom to top, and the upper end of the tapered tapered flow channel 30 is provided with a water outlet, and the target plate 25 is arranged above the nozzle main body, and the target plate 25 The two sides of the target plate 25 are respectively connected with the target base 27 on the same side with nuts through the screw rod 31. The upper end of the target plate 25 is provided with a knob 32, and the lower end of the target plate 25 is provided with a cylindrical striker 33. The knob 32 passes through the target plate 25 and the cylindrical striker 33. Connect as one. The knob 32, the cylindrical striker 33 and the center line of the runner 30 are on the same straight line.

The ventilating and cooling system used in the power plant of the present invention, its wind system workflow is:

The outdoor air enters the inertial filter housing 1 through the air inlet of the inertial filter, and under the action of the power blade 2, as shown in Figure 2, the dust and sand in the air are dropped by gravity and concentrated in the dust collection tank 5 , the dust-laden air is discharged through the dust exhaust fan 4, and the purified air is sent into the ventilation and cooling device by the air supply fan 3 through the air supply pipe through the wall 6; after the purified air enters the ventilation and cooling device, it is first rectified by the rectification grid 7 Heat and moisture exchange occurs with the spray in the hydrodynamic water spray chamber 22, and after being filtered by the water baffle 9, it is finally sent into the power plant building by the air duct.

The ventilation cooling system for power plant of the present invention, its water system workflow is:

The working process of the water system of the hydrodynamic water spray chamber 22 is as follows:

The spray water in the spray pool 11 is first filtered by the water filter 13, and then flows through the circulating water pipe 14, the three-way regulating valve 16, the second water supply pipe 23 and the connecting pipe 24 under the action of the water pump 17, and the spray water is sent to into the two rows of spray water pipes 18, according to the requirements of the spray water temperature, the spray water is mixed with the cold water in the replenishment pipe in proportion, and finally transported to the target nozzle 8 for spraying, after heat and moisture exchange with the air, the gravity Fall into the spray pool 11 under the effect, repeat circulation.

The water in the spray pool 11 is supplied by the water supply pipe network through the first water supply pipe 15, and is supplied by the water supply pipe 12 when the spray pool 11 needs to replenish water.

The ventilation and cooling system for a power plant with an inertial filter and a water spray chamber of the present invention combines the inertial filter and the hydrodynamic water spray chamber organically. Wind resistance, effectively solving the problems of large air volume and difficult layout of air ducts in the ventilation system of power plants.

Claims (10)

1. the power plant aeration cooling system with inertial filter and spray chamber, it is characterized in that, comprise and be arranged at respectively body of wall (6) inside and outside aeration-cooling device and inertial filter, described aeration-cooling device and inertial filter are communicated with by ajutage, described aeration-cooling device is arranged between body of wall (6) and power plant's factory building, and is communicated with power plant factory building by airduct.

2. the power plant aeration cooling system with inertial filter and spray chamber according to claim 1, it is characterized in that, described inertial filter, includes inertial filter housing (1), and described inertial filter housing (1) is respectively arranged with air inlet and air outlet on relative two side; In described inertial filter housing (1), enter rear flow direction by air and be disposed with power blade (2) and breeze fan (3), inertial filter housing (1) bottom outside corresponding to described power blade (2) bottom is provided with dust collecting trough (5), and the bottom of described dust collecting trough (5) is connected with dusting fan (4).

3. the power plant aeration cooling system with inertial filter and spray chamber according to claim 1 and 2, it is characterized in that, described aeration-cooling device, includes device case, is respectively arranged with air-inlet window and air-supply window on the relative two side of described device case;

In described device case, enter rear flow direction by air and be disposed with honeycomb screen (7), target formula injection apparatus and water fender (9), the bottom of described honeycomb screen (7), target formula injection apparatus and water fender (9) is provided with spray pond (11), described honeycomb screen (7) is all arranged in spray pond (11) with the lower end of water fender (9), described spray pond (11) is connected with tapping pipe (21), is respectively arranged with ball-cock assembly (10), water filter (13) and overflow device (19) in described spray pond (11).

4. the power plant aeration cooling system with inertial filter and spray chamber according to claim 3, is characterized in that, described tapping pipe is provided with valve on (21); Described ball-cock assembly (10) is connected with filling pipe (12); Described water filter (13) is connected with circulating water pipe (14); Described overflow device (19) is connected with overflow pipe (20).

5. the power plant aeration cooling system with inertial filter and spray chamber according to claim 4, it is characterized in that, described circulating water pipe (14) is connected with respectively the first feed pipe (15), the second feed pipe (23) by three-way control valve (16), on described the second feed pipe (23), be provided with water pump (17), described the second feed pipe (23) is connected with tube connector (24).

6. the power plant aeration cooling system with inertial filter and spray chamber according to claim 5, is characterized in that, described the first feed pipe (15), the second feed pipe (23), tube connector (24) are all arranged at described aeration-cooling device outside.

7. the power plant aeration cooling system with inertial filter and spray chamber according to claim 3, it is characterized in that, described target formula injection apparatus comprises two rows vertically and the spray header (18) being oppositely arranged, two row's spray headers (18) are connected with tube connector (24), on every row's spray header (18), be arranged at intervals with multiple target spray nozzles (8) to spray, between described two row's spray headers (18), form fluid dynamic spray chamber (22).

8. the power plant aeration cooling system with inertial filter and spray chamber according to claim 7, is characterized in that, the equidistant even setting of described multiple target spray nozzles (8).

9. according to the power plant aeration cooling system with inertial filter and spray chamber described in claim 7 or 8, it is characterized in that, described target spray nozzle (8), include nozzle body and target plate (25), described nozzle body includes the target head (26) connecting successively from top to bottom, target stand (27) and target bar (28), the arranged outside of described target bar (28) lower end has external screw thread (29), the central authorities of described nozzle body are provided with taper convergent runner (30) from bottom to top, described taper convergent runner (30) upper end is provided with delivery port, described target plate (25) is arranged at the top of nozzle body, the both sides of described target plate (25) are connected with nut with the target stand (27) of homonymy by screw rod (31) respectively, the upper end of described target plate (25) is provided with knob (32), the lower end of described target plate (25) is provided with cylinder striker (33), described knob (32) connects as one through described target plate (25) and cylinder striker (33).

10. the power plant aeration cooling system with inertial filter and spray chamber according to claim 9, is characterized in that, described knob (32), cylinder striker (33) and taper convergent runner (30) centerline are on same straight line.

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