JPH0525188U - Water supply device for upper water tank of cross flow type cooling tower - Google Patents

Abstract

(57) [Abstract] [Purpose] A reverse cone flow control valve is vertically adjustable with respect to the upper end discharge part of the supply pipe and is installed in the sprinkler box so that the position can be fixed. Allows fine adjustment of the discharge flow rate. [Structure] When it becomes necessary to adjust the discharge flow rate from the upper end discharge portion 11 of the supply pipe 10, the handle 15 located outside the sprinkler box 12 is rotated to move the valve rod 14 in the vertical direction. The flow rate is adjusted by moving the reverse conical flow rate adjusting valve 13 to the upper end discharge part 11 of the supply pipe 10 to adjust the discharge flow rate from the upper end discharge part 11 of the supply pipe 10.
After this, the inverted conical flow rate adjusting valve 13 is fixed to this adjusting position using the lock nut 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for supplying circulating cooling water to an upper water tank of a cross flow type cooling tower through an internal piping system.

[0002]

[Prior Art]

 As a water supply device for the upper water tank of this type of cross-flow cooling tower, the applicant company has decided to use the upper discharge part of the circulating cooling water supply pipe in the internal piping system that has been set up through the inside of the cross-flow cooling tower. A sprinkler box is installed on the bottom surface of the upper water tank, which is pierced through the bottom surface of the upper water tank and surrounds the upper end discharge part of the supply pipe from above, and the supply pipe located inside the sprinkler box is opened. A disc that opens and closes the upper end discharge part is installed in the sprinkler box so that it can be adjusted up and down with respect to the upper end outlet of this supply pipe, and this disc is operated so as to be displaced upward and downward from the outside of the sprinkler box. We have developed a water supply system that opens and closes the upper discharge part.

[0003]

[Problems to be solved by the device]

 In the water supply device for the upper water tank of the cross flow type cooling tower that was developed above, the upper end discharge part of the supply pipe is opened and closed by a disk, so it is difficult to finely adjust the supply amount of circulating cooling water. This disk has only the function of switching all open / close of the supply of circulating cooling water, and is not suitable for adjusting the original supply amount of circulating cooling water.Therefore, multiple cooling towers are arranged in parallel. , These cooling tower groups are divided into at least two series, and in the multi-cell type cooling tower in which the sprinkling boxes are arranged in each cooling tower, as a water supply device for the upper water tank of the cross flow type cooling tower developed above, Not suitable. The object of the present invention is to improve the drawbacks of the above-mentioned conventional technology, and to market a water supply device for the upper water tank of a cross flow type cooling tower that enables fine adjustment of the supply amount of circulating cooling water with a simple structure. Is to provide.

[0004]

Means for Solving the Problems In order to solve the above problems, the present invention relates to an apparatus for supplying circulating cooling water to an upper water tank of a cross flow type cooling tower through an internal pipe system. Circulating cooling water supply pipe in the internal piping system that has been set up through the inside of the cooling tower, the upper discharge part of the supply pipe penetrates the bottom surface of the upper water tank that has a number of water spray holes at the bottom, and the upper discharge part of this supply pipe is A sprinkler box surrounding from above is arranged on the bottom surface of the upper water tank, and an inverted conical flow rate adjustment for adjusting the discharge flow rate from the upper end discharge part of the supply pipe that is located and opened in this sprinkler box. The valve is vertically adjustable with respect to the upper discharge port of this supply pipe, and is installed in the sprinkler box so that the position can be fixed.The upper end of the valve rod of this flow valve penetrates the upper surface of the sprinkler box and is located outside the sprinkler box. The handle on the top of this stem. It is a water supply device to the upper water tank of the cross flow type cooling tower, which is characterized by being attached. In order to solve the above-mentioned problems, an opening is formed near the lower part of the side wall of the sprinkler box in the device for supplying water to the upper water tank of the cross flow type cooling tower of the present invention, and from the upper edge of this opening part. It is desirable that the rim of the upper discharge portion of the supply pipe is located at a higher position. In order to solve the above-mentioned problem, a plurality of the cooling towers in the present invention may be arranged in parallel, the cooling tower group may be divided into at least two series, and the sprinkler box may be arranged in each cooling tower. is there.

[0005]

[Action]

 The operation of the device according to claim 1 configured as described above will be described below. Circulating cooling water (hot water) sent from a load part such as a refrigerator passes through the internal piping system that has been set up inside the cross flow type cooling tower, and is discharged from the upper discharge part of the supply pipe. Does not directly flow into the upper water tank of the cross flow type cooling tower, but once collides with the entire reverse conical surface of the reverse cone flow control valve, and the flow is deflected from upward to downward and then sprinkled. It flows toward the bottom of the box. For this reason, this inverted conical flow valve also functions as a drift component of the circulating cooling water. The discharged circulating cooling water flows so as to fill the inside of the sprinkler box, then flows out from the sprinkler box into the upper water tank of the crossflow cooling tower, and from the group of sprinkler holes provided in the entire bottom portion of the upper water tank. It flows down and flows under the upper water tank along the packing material filled in the main body of the cross-flow cooling tower. While flowing down over this filler, the circulating cooling water and the horizontal air flow form a cross flow and come into contact with each other. To be cooled. The cooled circulating cooling water is collected in the lower water tank of the cross flow type cooling tower and then sent to the load section. The cooling action in this cross-flow cooling tower is the same as that of a known cross-flow cooling tower.

Further, in this invention, when it is necessary to adjust the discharge flow rate from the upper end discharge part of the supply pipe, the handle located outside the sprinkler box is rotated to operate the valve rod. The position is moved in the vertical direction to adjust the feed amount of the reverse conical flow rate adjusting valve to the upper discharge part of the supply pipe, and the gap size between the upper discharge port of the supply pipe and the reverse cone flow valve. By changing the discharge loss pressure of the circulating cooling water and adjusting the discharge loss pressure in the vertical direction with respect to the upper end discharge port to adjust the discharge flow rate from the upper end discharge part of the supply pipe. After adjusting the discharge flow rate from the upper end discharge portion of the supply pipe in this way, the inverted conical flow rate adjusting valve is fixed to this adjusting position by using a fixing means such as a lock nut. In the device described in claim 2, the following operation is performed in addition to the operation of the device described in claim 1. That is, an opening is formed near the lower part of the side wall of the sprinkler box, and since the upper end discharge part edge of the supply pipe is located at a position higher than the upper edge of the opening, the circulating cooling water is The water was discharged from the upper end discharge part of the supply pipe at a position higher than the upper edge of the opening, and was slightly turbulent, and was formed near the lower part of the side wall of the sprinkler box with the flow velocity weakened from the upper end discharge part It flows out through the opening into the upper water tank of the cross-flow cooling tower, and flows down from the water spray holes provided in the entire bottom portion of the upper water tank. The invention described in claim 3 has the following operation in addition to the operation of the invention described in claim 1 or claim 2. That is, since a plurality of the cooling towers are arranged in parallel, the cooling tower group is divided into at least two series, and the water sprinkling boxes are arranged in each cooling tower, respectively. 2 groups of cooling towers are used to cool and heat a wide area, and within each group of cooling towers, the flow rate of the circulating water to the upper water tank of each cooling tower is adjusted independently. .

[0007]

【Example】

 Embodiment 1 A typical embodiment of the invention described in claims 1 and 2 will be described below. In FIG. 1, A indicates the entire apparatus for supplying circulating cooling water to an upper water tank C of a cross flow type cooling tower B via an internal piping system D. The upper end discharge part 11 of the circulating cooling water supply pipe 10 in the internal piping system D which has risen through the inside of the cross flow type cooling tower B penetrates the bottom surface of the upper water tank C having a large number of water spray holes at the bottom. A sprinkling box 12 that surrounds the upper end discharge part 11 of the supply pipe 10 from above is arranged on the bottom surface of the upper water tank C. An inverted conical flow rate adjusting valve 13 for adjusting the discharge flow rate from the upper end discharge part 11 of the supply pipe 10 located inside the sprinkler box 12 and opening the discharge pipe 11 with respect to the upper end discharge port 11a of the supply pipe 10. It is adjustable up and down and is installed in the sprinkler box 12 so that its position can be fixed. The upper end of the valve rod 14 of the flow rate adjusting valve 13 penetrates the upper surface of the sprinkler box 12 and is located outside the sprinkler box 12, and the handle 15 is attached to the upper end of the valve rod 14. Reference numeral 16 is a lock nut for fixing the valve rod 14 at its adjusting position at any time. An opening 12b is formed near the lower part of the side wall 12a of the sprinkler box 12, and an upper end discharge portion rim 11b of the supply pipe 10 is located at a position higher than an upper edge 12c of the opening (FIG. 2).

Embodiment 2 A typical embodiment of the invention described in claim 3 will be described below. A plurality of the cross-flow cooling towers B of the above-mentioned embodiment are arranged in parallel, the cooling tower B group is divided into at least two series, and the water spray box 12 is arranged in each cooling tower B. Yes (see figure). The other structure is the same as that of the first embodiment. Since the operation of each of the embodiments is the same as the operation of the invention described in the corresponding claim, the description thereof will be omitted.

[0008]

[Effect of the device]

 In the device of the present invention configured and functioning as described above, in the sprinkler box, the inverted conical flow rate adjusting valve can be vertically adjusted with respect to the upper end discharge portion of the supply pipe, and the position thereof can be fixed. The position of this flow valve can be vertically displaced to finely adjust the discharge flow rate from the upper end discharge part of this supply pipe, and the flow control valve can be fixedly held at this adjustment position. Further, since this flow rate adjusting valve has an inverted conical shape, the circulating cooling water discharged from the upper end discharge part of the supply pipe is made to flow smoothly in the outer peripheral direction, and this flow rate control valve and the upper end discharge part of the supply pipe are It is possible to deflect the circulating cooling water discharged from the gap in the downward direction.

In the device described in claim 2, the following effect is obtained in addition to the effect of the device described in claim 1. That is, an opening is formed near the lower part of the side wall of the sprinkler box, and the rim of the upper end discharge part of the supply pipe is located at a position higher than the upper edge of the opening. After discharging from the upper discharge part of the supply pipe at a position higher than the upper edge of the opening and causing a slight turbulence, the flow velocity at the time of discharge from this upper discharge part is weakened to the lower part of the side wall of the sprinkler box. It can flow out through the formed opening into the upper water tank of the cross flow type cooling tower, and can flow down substantially uniformly from the water spray hole group provided in the entire bottom portion of the upper water tank. The invention described in claim 3 has the following effect in addition to the effect of the invention described in claim 1 or claim 2. That is, since a plurality of the cooling towers are arranged in parallel, the cooling tower group is divided into at least two series, and the water sprinkling boxes are arranged in each cooling tower, respectively. By using the two series of cooling tower groups, it is possible to perform heating and cooling in a wide area. In each series of cooling tower groups, the flow rate of the circulating water to the upper water tank of each cooling tower can be adjusted independently. You can do it.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of a first embodiment.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a schematic plan view of a second embodiment.

[Explanation of symbols]

 10 Circulating Cooling Water Supply Pipe 12 Sprinkler Box 13 Flow Control Valve

Claims (3)

[Scope of utility model registration request] 1. An apparatus for supplying circulating cooling water to an upper water tank of a cross flow type cooling tower via an internal piping system, wherein circulating cooling water is supplied in an internal piping system which has been set up inside the cross flow type cooling tower. The upper end discharge part of the pipe penetrates the bottom surface of the upper water tank having a large number of water spray holes at the bottom part, and a sprinkler box surrounding the upper discharge part of the supply pipe from above is arranged on the bottom surface of the upper water tank. Yes, an inverted conical flow rate adjusting valve for adjusting the discharge flow rate from the upper end discharge part of the supply pipe which is located and opened in this sprinkler box is vertically adjustable with respect to the upper end discharge port of this supply pipe, It is provided on the sprinkler box so that it can be fixed in position.The upper end of the valve rod of the flow valve penetrates the upper surface of the sprinkler box, is located outside the sprinkler box, and the handle is attached to the upper end of the valve rod. For supplying water to the upper tank of a cross flow type cooling tower . 2. An opening is formed near the lower part of the side wall of the sprinkler box, and an upper edge of the upper end of the supply pipe is located at a position higher than an upper edge of the opening. The water supply device for the upper water tank of the cross-flow cooling tower according to claim 1. 3. A plurality of the cooling towers are arranged in parallel, the cooling tower group is divided into at least two series, and the sprinkler box is arranged in each cooling tower. A device for supplying water to the upper water tank of the crossflow cooling tower according to claim 1 or 2.