WO2018036236A1

WO2018036236A1 - Open circuit crossflow cooling tower of centrifugal blower type

Info

Publication number: WO2018036236A1
Application number: PCT/CN2017/086328
Authority: WO
Inventors: 贺颂钧
Original assignee: 广州览讯科技开发有限公司
Priority date: 2016-08-26
Filing date: 2017-05-27
Publication date: 2018-03-01
Also published as: CN106197060A

Abstract

Disclosed is an open circuit crossflow cooling tower of a centrifugal blower type. The cooling tower comprises a tower body (1), a centrifugal blower (2), a water collector (3), and a water distribution device (4) and a fill material (5) fixed in the tower body from top to bottom. The water collector (3) and the centrifugal blower (2) are respectively arranged on two sides of the fill material (5). A side of the tower body (1) close to the centrifugal blower (2) is provided with a side inlet. An air outlet of the centrifugal blower (2) is in communication with the side inlet. An outer wall of the tower body (1) close to the water collector (3) is provided with a side outlet or a top outlet. The water collector (3) is arranged in the tower body (1) and encloses the side outlet or the top outlet. The water distribution device (4) is provided with a plurality of spray nozzles (41) for spraying hot water. The spray nozzles (41) are arranged above the fill material (5). A spraying area is formed between the spray nozzles and the fill material (5). The cooling tower can not only cool and recycle hot water, but can also be applied to situations where lateral air-out is needed, such as ventilating pipes and pits.

Description

Centrifugal blast cross flow open cooling tower

Technical field

The present invention relates to a cooling tower, and more particularly to a centrifugal blast transverse flow open cooling tower.

Background technique

The cooling tower is made by contacting water with air for cold and heat exchange to generate steam, and the generated steam outlet is discharged, thereby reducing the temperature of the air inside the tower, so as to dissipate the industrial preheating to lower the water temperature. The air inlet of the traditional cooling tower is at the tower body or the bottom of the tower, and the air outlet is usually located at the top of the tower above the water distribution device. In addition, a fan can be added at the air outlet to discharge the steam from the top of the tower. Therefore, the cooling tower does not Applicable to occasions such as ventilation ducts, pits, etc. where side air is required.

Summary of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a centrifugal blast cross flow open cooling tower which can be side-out, so that it can be applied to a side air outlet such as a ventilation duct or a pit. The occasion.

The object of the invention is achieved by the following technical solutions:

A centrifugal blast cross-flow open cooling tower includes a tower body, a centrifugal blower, a water collector, and a water distribution device and a packing device fixed from the top to the bottom of the tower body, and the water collector and the centrifugal blower are separately disposed in the packing device On both sides, the side of the tower body near the centrifugal blower has a side inlet, and the air outlet of the centrifugal blower is connected with the side inlet; the outer wall of the tower body near the water collector has a side outlet or a top outlet, and the water collector is arranged at the tower The body is sealed to the side outlet or the top outlet; the water distribution device has a plurality of spray heads for spraying hot water, and the spray head is disposed above the filling device and forms a spraying area with the filling device.

Preferably, a water deflector disposed in the tower body and surrounding the spray zone is further included.

Preferably, it also includes an access door provided on the outer wall of the tower.

Preferably, the utility model further comprises an outlet valve disposed at the bottom of the tower body, the outlet valve being in communication with the water collector.

Preferably, the method further includes a full water valve disposed at the bottom of the tower body and a water level detector disposed in the tower body, the water level detector being electrically connected to the full water valve.

Preferably, a drain valve provided at the bottom of the tower body is further included.

Preferably, the utility model further comprises a fixing frame disposed in the tower body, and the filling device is detachably fixed to the fixing frame.

Preferably, the filling device comprises a plurality of stacked filler sheets, each of the filler sheets having a plurality of concave portions and convex portions that are coupled to each other; each of the filler sheet surfaces has a grainy fine line and a plurality of water inlet openings are formed on the surface of the filler sheet; The concave portion of one of the two adjacent filler sheets and the convex portion of the other filler sheet correspond to each other and respectively form a plurality of ventilation chambers, the ventilation chamber is horizontally disposed and the two ends thereof are respectively configured as the air inlet end And the outlet end, the inlet end corresponds to the side inlet position.

Preferably, all of the venting chambers of the packing device form a honeycomb structure.

Preferably, the filler sheet is made of flame retardant polyvinyl chloride.

Compared with the prior art, the beneficial effects of the present invention are:

The invention provides a water distribution device and a packing device from top to bottom in the tower body, and a centrifugal blower and a water collecting device are respectively disposed on two sides of the packing device, and a side inlet is arranged on a side of the tower body near the centrifugal blower. The air outlet of the centrifugal blower is in communication with the inlet of the side, and the outer wall of the tower body adjacent to the water collector has a side outlet or a top outlet, and the water collector is sealed on the side The mouth or the top outlet, therefore, after the centrifugal blower draws the air into the tower body, the air can flow laterally, and is sequentially discharged through the packing device, the water collector, and the side outlet or the top outlet, thereby not only cooling the hot water but also recovering the hot water. Moreover, the centrifugal blower crosses the side inlet, the side outlet or the top outlet of the open cooling tower, so that it can be applied to a place like a ventilation duct, a pit, and the like that requires side air.

DRAWINGS

1 is a schematic diagram of an internal structure of a first embodiment of the present invention;

Figure 2 is a plan view of a filler sheet according to Embodiment 1 of the present invention;

Figure 3 is a left side view of the filler sheet of the first embodiment of the present invention;

4 is a schematic diagram of an internal structure of a second embodiment of the present invention;

In the figure: 1, tower body; 11, water outlet valve; 12, full water valve; 13, sewage valve; 2, centrifugal blower; 3, water collector; 4, water distribution device; 41, nozzle; 5, packing device ; 6, water retaining plate; 7, maintenance door; 8, filler sheet; 81, cloth-like fine lines.

detailed description

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

Embodiment 1:

The centrifugal blast cross flow open cooling tower shown in FIG. 1 comprises a tower body 1, a centrifugal blower 2, a water collector 3, and a water distribution device 4 and a packing device fixed from the top to the bottom in the tower body 1. 5, the water collector 3 and the centrifugal blower 2 are arranged on both sides of the filling device 5, the side of the tower body 1 close to the centrifugal blower 2 has a side inlet, and the air outlet of the centrifugal blower 2 is connected with the side inlet; the tower body 1 The outer wall of the water collecting device 3 is provided with a side outlet which is located on the side wall of the corresponding tower body 1 of the water collector 3, and the water collecting device 3 is disposed in the tower body 1 and is sealed The water outlet device 4 has a plurality of spray heads 41 for spraying hot water, and the spray heads 41 are disposed above the packing device 5 and form a spray zone with the packing device 5.

In use, the spray head 41 of the water distribution device 4 sprays hot water toward the filling device 5, the hot water is left along the surface of the filling device 5, and a water film is formed on the surface thereof. At this time, the centrifugal blower 2 on the side of the filling device 5 The dry cold air can be drawn into the tower body 1 along the side inlet of the tower body 1 side, since the side outlet corresponding to the other side of the packing device 5 is provided with a side outlet, and the side outlet is sealed on the side outlet. The water device 3, therefore, after the dry cold air enters the tower body 1, it will first pass through the packing device 5 and exchange heat with the water film thereon, and after the dry air cools the water film, it becomes hot and humid air, and the hot and humid air will carry large The partially cooled water enters the water trap 3, and after the water collector 3 absorbs the moisture, the moist hot air becomes dry hot air and is discharged by the side outlet of the side wall of the tower body 1 corresponding to the water collector 3. Therefore, under the action of the centrifugal blower 2, the air entering the tower body 1 flows laterally and flows out through the side outlet of the side wall of the tower body 1 through the packing device 5, so the centrifugal blast cross-flow open cooling tower can be applied Similar to ventilation ducts, pits and the like where side wind is required.

In order to sufficiently cool the hot water sprayed by the spray head 41, as a preferred embodiment, a water retaining plate 6 enclosing the spray zone is further added to the tower body 1 in the embodiment, and the water retaining plate 6 can be The hot water sprayed from the spray head 41 forms a closed guide so that the sprayed hot water can completely enter the packing device 5 to fully react.

In order to achieve frequent maintenance in the tower body 1, in this embodiment, an access door 7 is additionally provided on the outer wall of the tower body 1. Further, a water outlet valve 11 communicating with the water trap 3 is additionally provided at the bottom of the tower body 1 to facilitate the extraction of the cooling water collected by the water collector 3. In order to prevent the water trap 3 from overflowing, the water in the tower body 1 is excessively accumulated. In the embodiment, water is also added to the tower body 1. The position detector is provided with a full water valve at the bottom of the tower body 1, and the water level detector is electrically connected with the full water valve 12, so that when the water in the tower body 1 is excessive, the water valve 12 can be accumulated in time. The water is drained. When it is necessary to clean the inside of the tower body 1, in order to facilitate the discharge of the dirt in the tower body 1, in the present embodiment, a drain valve 13 is additionally provided at the bottom of the tower body 1. Further, in order to facilitate the cleaning of the filling device 5, in this embodiment, a fixing frame is further added to the tower body 1, and the filling device 5 is detachably fixed thereto, so that the filling device 5 is not only easy to install, And easy to remove and wash.

In order to enhance the heat exchange effect, as a preferred embodiment, as shown in FIGS. 2 and 3, the packing device 5 of the present embodiment includes a plurality of laminated packing sheets 8, each of which has a plurality of concave portions that are coupled to each other and a convex portion; each of the filler sheets 8 has a cloth-like fine line 81 on the surface thereof and a plurality of water inlets on the surface of the filler sheet 8; a concave portion of one of the filler sheets 8 between the adjacent two filler sheets 8 and another filler The convex portions of the sheet 8 are correspondingly arranged and respectively formed into a plurality of ventilation chambers, the ventilation chambers are horizontally disposed and the two ends thereof are respectively configured as an air inlet end and an air outlet end, and the air inlet end corresponds to the side inlet position, and therefore, the nozzle head 41 The hot water sprayed out will fill the surface of the filler sheet 8 along the water inlet, and the fine grain pattern 81 on the surface of the filler sheet 8 can form a water film on the surface of the hot water and the filler sheet 8 without splashing, so that the hot water can be It is in full contact with the air to enhance the heat exchange effect of the packing device 5. Further, all the ventilation chambers of the filling device 5 can be formed into a honeycomb structure to avoid uneven distribution of wind due to uneven spacing of the filler sheets 8, so that the area of the filling device 5 can be effectively utilized, thereby improving And stabilize the heat exchange intensity of water vapor. In order to increase the service life of the packing device 5, the packing sheet 8 of the present embodiment is formed by pressing a flame-retardant polyvinyl chloride through a vacuum die-drawing machine.

Embodiment 2:

As shown in FIG. 4, the difference between the second embodiment and the first embodiment is that in the first embodiment, a side outlet is disposed on the outer wall of the tower body 1 corresponding to the water collector 3, and the side outlet is disposed on the side wall of the tower body 1. In the present embodiment, a top outlet is provided on the outer wall of the tower body 1 corresponding to the water collector 3, and the top outlet is provided at the top of the tower body 1. Thus, the air entering the tower body 1 from the side inlet of the side of the packing device 5 flows out from the other side of the packing device 5 after flowing through the packing device 5, so that not only the hot water can be cooled, but also the centrifugal can be performed. The blast-type cross-flow open cooling tower can be applied to occasions such as ventilation ducts, pits and the like where side air is required. Various other changes and modifications may be made by those skilled in the art in light of the above-described technical solutions and concepts, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

A centrifugal blast cross flow open cooling tower characterized by comprising a tower body, a centrifugal blower, a water collector, and a water distribution device and a packing device fixed to the tower body from top to bottom, a water collector and a centrifugal blower Divided on both sides of the packing device, the side of the tower body near the centrifugal blower has a side inlet, and the air outlet of the centrifugal blower is connected with the side inlet; the outer wall of the tower body close to the water collector has a side outlet or a top outlet, and the water is received. The device is disposed in the tower body and is sealed on the side outlet or the top outlet; the water distribution device has a plurality of spray heads for spraying hot water, and the spray head is disposed above the packing device and forms a spraying area with the packing device.
The centrifugal blast transverse flow type cooling tower according to claim 1, further comprising a water deflector disposed in the tower body and enclosing the spray zone.
The centrifugal blast transverse flow open cooling tower according to claim 1, further comprising an access door provided on the outer wall of the tower.
The centrifugal blast transverse flow open cooling tower according to claim 1, further comprising an outlet valve disposed at a bottom of the tower body, the outlet valve being in communication with the water trap.
The centrifugal blast transverse flow open cooling tower according to claim 1, further comprising a full water valve disposed at the bottom of the tower body and a water level detector disposed in the tower body, the water level detector and the full water valve Electrical connection.
A centrifugal blast transverse flow open cooling tower according to claim 1 further comprising a blowdown valve provided at the bottom of the tower body.
The centrifugal blast transverse flow type cooling tower according to claim 1, further comprising a fixing frame disposed in the tower body, wherein the packing device is detachably fixed to the fixing frame.
The centrifugal blast transverse flow open cooling tower according to claim 1, characterized in that The filling device comprises a plurality of stacked filler sheets, each of the filler sheets having a plurality of concave portions and convex portions that are connected to each other; each of the filler sheet surfaces has a grain-like fine line and a plurality of water inlet openings are formed on the surface of the filler sheet; The concave portion of one of the two adjacent filler sheets and the convex portion of the other filler sheet are correspondingly arranged and respectively formed into a plurality of ventilation chambers, the ventilation chambers are horizontally disposed and the two ends thereof are respectively configured as an air inlet end and At the outlet end, the inlet end corresponds to the side inlet position.
A centrifugal blasting cross-flow cooling tower according to claim 8 wherein all of the venting chambers of the packing means form a honeycomb structure.
The centrifugal blast transverse flow type cooling tower according to claim 8, wherein the filler sheet is made of flame-retardant polyvinyl chloride.