RU26843U1 - COOLING TOWER - Google Patents

Abstract

1. A cooling tower comprising a cylindrical body with a separator, a pan, a pipe for draining water, a filter, fans, a pipe for supplying water, water dispersion elements containing nozzles, primary and secondary dispersion elements, characterized in that the pipes are tangentially fixed to the body in pairs, in which the fans are located, and in each pipe there are installed dampers with the possibility of rotation around a vertical axis. 2. The cooling tower according to claim 1, characterized in that the angle of rotation of the damper around the vertical axis lies in the range from 0 to 200C. The cooling tower according to claim 1 or 2, characterized in that the pairs of pipes are diametrically opposed to the vertical axis of the device at different levels.

Description

COOLING TOWER

The utility model relates to cooling towers for cooling water with outside air and can be used in circulating water cooling systems in industrial practice.

Known cooling tower containing an exhaust tower with an annular window for air inlet, an irrigation device and air guide blades installed after the irrigation device, and the blades form curved channels / 1 /.

. A disadvantage of the known cooling tower is that the air-guide blades, forcing to rotate the air flow through an angle of 102 - 110 °, sharply reduce its speed and increase the overall aerodynamic resistance of the tower. ,

As a result of this, traction decreases, the heat transfer rate and the cooling tower operation efficiency decrease.

The closest in technical essence is a heat and mass transfer device, including a housing, a tray, a pipe for draining water, a fan, a pipe for supplying water, elements of primary and secondary dispersion of water containing a nozzle with a coaxial conical section / 21.

The disadvantage of this device is the relatively short stay of water droplets in the upward flow of air, resulting in a relatively low cooling capacity of the device.

MKI 6 F 28C 1/00; Howl 1/18

creating an ascending rotating air flow, creating a field of centrifugal forces superior to gravitational forces, and a significant increase in the length of the trajectory of moving particles of water compared to vertically ascending flows and, consequently, an increase in the time of contact of air with water.

The technical result consists in increasing the cooling ability of the device and, as a result, in reducing the energy consumption per 1 m3 of cooled water

The problem is achieved by the fact that in the proposed tower containing a cylindrical body with a separator, a pallet, a pipe for removal

water, fans, piping for water supply, dispersion elements

t water containing a nozzle with a coaxial conical section, elements

primary dispersion made conically with a group of horizontal plates, and the elements of the secondary dispersion are made in the form of mesh cylinders or cones.

In addition, tangentially fixed to the body are pairs of pipes in which the fans are located, and in each pipe there are installed dampers with the possibility of rotation around the vertical axis, while the angle of rotation of the shutter a around the vertical axis is in the range from 0 to 200 °, in addition, the pair of pipes positioned diametrically opposed to the vertical axis of the device, at different levels.

The proposed device is presented in FIG. 1,2,3.

In FIG. 1 shows a General view of the device. In FIG. 2 is a view in AA and BB of FIG. 1. In FIG. 3 - presents a view (option) of a device with an exhaust fan.

The device of FIG. 1 contains a housing 1, in which a pan 2 with a filter 3 and a pipe for water drainage 4, a pipe for supplying water 5, a separator 6, primary and secondary dispersion elements 7, tangential pipes 8 with shutters 10 and clamps fixed to them on a vertical axis 9 are placed 11 and 12 discharge fans 13, exhaust fan 14.

The operation of the device is as follows. Water flows through a pipeline for supplying water 5 to the primary and secondary dispersion elements 7 located in the upper part of the housing 1 and is sprayed.

The air i stream received by the fans 13, which enters the cooling tower via tangential pipes 8, acquires a rotational motion and

along a helical path (relative to the axis of the housing) rises up.

In contact with a finely divided water torch falling downward, a uniformly rotating air stream moving in countercurrent prevents sharp drops from falling downward under the influence of gravity and forces the droplets to move in a spiral. This significantly increases the length of the trajectory of moving particles of water and, therefore, the contact time of air with water increases.

As a result, there is a deeper cooling of the water and heat and mass transfer are intensified.

In the separator 6, small droplets of water are separated, coarsened and not carried away by a gas-liquid stream, but flow into a drip tray.

Cooled water is collected in the pan 2 and through the filter 3 and the pipe for draining water 4 enters the recirculation system.

cooling water and air flow turn on or off the diametrically opposite pairs of discharge fans 13, and the shutters 10 for idle fans are closed (position I) and locked by latches 11, and for working fans the shutters 10 are open (position II) and locked by latches 12. (Shown on figure 2)

In the case of the operation of the device with an exhaust fan (Fig. 3), the exhaust fan 14 creates a vacuum inside the tower 1 body and atmospheric air passes through the tangential pipes 8 into the cooling tower, rotates the movement and rises upward along a spiral path.

The efficiency of warm water cooling in this technical solution is reassembled, first of all, due to a significant increase in the path

(trajectories) of the movement of a drop of water when falling down under the influence of gravity on one side and an upward rotating air flow on the other and, therefore, the contact time of the gas and liquid phases increases.

The inventive device compared with the prototype, has the advantage of increased depth of cooling water.

As shown by experimental studies, in the proposed utility model, the reduction in energy consumption per 1 m3 of cooled water is 12% compared with the prototype.

Table 1 shows the main technical data for a specific implementation of the proposed device.

Name and designation

№№ p.p.

1. Water flow through the cooling tower spray device, GP

2. Air consumption in the middle section of the tower body, GB

3. The average air speed in the middle of the tower body, VB

4. The temperature of the warm water at the inlet to the tower (discharge pipe 5), tp

.5. The temperature of the chilled water at the outlet of the tower (drain pipe 4), to

Range

Units meas.

m3 / hour 12-14

15-25 103

me / hour

m / s

0.5-1.5

20-30

12-22

USEFUL MODEL FORMULA

1. A cooling tower comprising a cylindrical body with a separator, a tray, a pipe for water drainage, a filter, fans, a pipe for supplying water, water dispersion elements containing nozzles, primary and secondary dispersion elements, characterized in that the pipes are tangentially fixed to the body in pairs which fans are located, and in each pipe dampers are installed with the possibility of rotation around a vertical axis.

2. The cooling tower according to claim 1, characterized in that the angle of rotation of the damper

around the vertical axis lies in the range from 0 to 200 ° C.

3. The cooling tower according to claim 1 or claim 2, characterized in that the pairs of pipes are diametrically opposed to the vertical axis of the device at different levels.

Sources of information taken into account:

1.A.S. No. 387201, USSR, MKI F28C 1 | 00. B.I. No. 27 of 21. VI. 1973

2. RF patent No. 2155306 priority 12.11.98, publ. BI No. 24 of 08.27.2000

Cooling tower

Claims (3)

1. A cooling tower comprising a cylindrical body with a separator, a pan, a pipe for draining water, a filter, fans, a pipe for supplying water, water dispersion elements containing nozzles, primary and secondary dispersion elements, characterized in that the pipes are tangentially fixed to the body in pairs, in which the fans are located, and in each tube there are installed dampers with the possibility of rotation around a vertical axis. 2. The cooling tower according to claim 1, characterized in that the angle of rotation of the valve around the vertical axis lies in the range from 0 to 200 ^o C. 3. The cooling tower according to claim 1 or 2, characterized in that the pairs of pipes are diametrically opposed to the vertical axis of the device at different levels.