CN215063841U

CN215063841U - Automatic fire fighting equipment of cooling tower

Info

Publication number: CN215063841U
Application number: CN202121272025.9U
Authority: CN
Inventors: 贺新祥; 傅立新
Original assignee: Hunan Yuanheng Technology Co ltd
Current assignee: Hunan Yuanheng Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-07
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses an automatic defoaming device of a cooling tower, belonging to the technical field of cooling towers, wherein the upper end of a branch pipe is connected with an outer Venturi tube; an inner Venturi tube is sleeved in the connecting section of the outer Venturi tube and the branch tube; the tail end of the inner Venturi tube is connected with a bubble suction tube; the lower end of the bubble suction pipe is communicated to a water collecting basin of the cooling tower; the tail end of the outer Venturi tube is hermetically connected with the outer wall of the inner Venturi tube; the front end of the outer Venturi tube is communicated with a water sowing basin of the cooling tower. The device can be used for automatic physical defoaming of transverse flow closed cooling towers and transverse flow open cooling towers in the biopharmaceutical industry and the brewing industry, does not need to add a power device and a control device, avoids the foam from being brought out of the towers by a mechanical exhaust fan to pollute the surrounding environment, is maintenance-free, and has the effects of energy conservation and environmental protection.

Description

Automatic fire fighting equipment of cooling tower

Technical Field

The utility model belongs to the technical field of the cooling tower, specifically be an automatic fire fighting equipment of cooling tower.

Background

The cooling tower is a device which uses water as 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 and heat dissipation device which utilizes the principle that water is in flowing contact with air and then carries out heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation and 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 so as to ensure the normal operation of the system, and the device is generally in a tower shape and is named as a cooling tower.

Be provided with vertical inner union in the cooling tower, inner union is connected by being responsible for 1 and branched branch pipe 2 and is constituteed for upwards carry the circulating water to the water planting basin on tower body top in, spill to the filler through planting the basin and cool off, the water after the cooling refluxes to the basin that catchments. Circulating water of the cooling tower is easy to generate foam in the water collecting basin after being circulated for many times, the foam is taken out of the tower by the mechanical exhaust fan to pollute the surrounding environment, and the running of the circulating water in the pipeline is influenced by too much foam.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides an automatic fire fighting equipment of cooling tower can be used to the automatic physics defoaming of bio-pharmaceuticals, making wine trade crossing current closed cooling tower, crossing current open cooling tower, need not newly-increased power device and controlling means, avoids the foam to be taken out of the tower by mechanical air exhauster and pollutes all ring edge borders, and non-maintaining maintenance has energy-concerving and environment-protective effect.

In order to achieve the above object, the utility model adopts the following technical scheme: an automatic defoaming device for a cooling tower is characterized in that the upper end of a branch pipe is connected with an outer Venturi tube; an inner Venturi tube is sleeved in the connecting section of the outer Venturi tube and the branch tube; the tail end of the inner Venturi tube is connected with a bubble suction tube; the lower end of the bubble suction pipe is communicated to a water collecting basin of the cooling tower; the tail end of the outer Venturi tube is hermetically connected with the outer wall of the inner Venturi tube; the front end of the outer Venturi tube is communicated with a water sowing basin of the cooling tower.

As a further improvement of the technical scheme, a bubble suction nozzle is arranged at the lower end of the bubble suction pipe.

As a further improvement of the technical scheme, the bubble suction nozzle is of a duckbill structure.

As a further improvement of the technical scheme, the front port of the inner Venturi tube is positioned at the rear end of the contraction port of the outer Venturi tube.

As a further improvement of the technical scheme, the tail end of the outer Venturi tube is connected with a connecting tube; the side wall of the connecting pipe is communicated with the branch pipe; the tail end of the connecting pipe is hermetically connected with the outer wall of the inner Venturi pipe.

As a further improvement of the technical scheme, the tail end of the inner Venturi tube is connected with a tail tube; the tail pipe is connected with the bubble suction pipe.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a two venturi tube structures carry the circulating water to broadcasting the basin through outer venturi, and outer venturi produces the cooperation with interior venturi and produces the negative pressure, inhales the foam air in with the basin through inhaling the bubble pipe and eliminates through interior venturi. The device does not need to additionally increase a power source and a control device, runs automatically, has small resistance to fluid, low energy consumption, good stability, smooth differential pressure characteristic, large differential pressure, high precision, difficult blockage phenomenon after long-term use, convenient installation and convenient maintenance.

Drawings

Fig. 1 is a schematic view of the overall structure of the device.

Fig. 2 is a three-dimensional schematic view of the device.

Fig. 3 is a schematic sectional structure view of the present apparatus.

In the figure: 1. a main pipe; 2. a branch pipe; 3. an outer venturi tube; 4. an inner venturi tube; 5. a tail pipe; 6. a bubble suction pipe; 7. a bubble suction nozzle; 8. and (4) connecting the pipes.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Referring to fig. 1 to 3, in one embodiment, an automatic defoaming device for a cooling tower is provided, in which an outer venturi tube 3 is connected to an upper end of a branch pipe 2; an inner Venturi tube 4 is sleeved in the connecting section of the outer Venturi tube 3 and the branch tube 2; the tail end of the inner Venturi tube 4 is connected with a bubble suction tube 6; the lower end of the bubble suction pipe 6 is communicated to a water collecting basin of the cooling tower; the tail end of the outer Venturi tube 3 is hermetically connected with the outer wall of the inner Venturi tube 4; the front end of the outer Venturi tube 3 is communicated with a water-spreading basin of the cooling tower.

The venturi tube means that the small diameter ends of two sections of conical tubes are oppositely connected, so that a contraction port is formed at the connecting part to form a throat; cylindrical pipe sections can be arranged at the two ends of the two sections of conical pipes.

Wherein, the front end of the outer Venturi tube 3 can be connected with an energy dissipater through a pipeline, the energy dissipater is connected with the water sowing basin, the kinetic energy of water flow can be eliminated through the energy dissipater, and the water sowing basin is ensured to run more stably and reliably.

As shown in fig. 1, in a preferred embodiment of the above embodiment, a bubble suction nozzle 7 is provided at a lower port of the bubble suction pipe 6.

As shown in fig. 1, in a preferred embodiment of the above embodiment, the bubble suction nozzle 7 has a duckbill structure. The duckbilled bubble suction nozzle structure can accelerate the suction of the foam in the water collecting basin, and the suction efficiency is improved.

Wherein, duckbilled structure means that the bubble suction nozzle is flat, and both sides are wider.

As shown in figure 3, the front end of the inner Venturi tube 4 is positioned at the rear end of the contraction opening of the outer Venturi tube 3 as the preferred mode of the embodiment. So set up and to make the rivers that flow out in the outer venturi 3 produce suction for inside negative pressure suction that forms of inner venturi 4 can be with the foam in the basin through the suction bulb pipe suction.

As a preferable mode of the above embodiment, the tail end of the outer venturi tube 3 is connected with a connecting pipe 8; the side wall of the connecting pipe 8 is communicated with the branch pipe 2; the tail end of the connecting pipe 8 is hermetically connected with the outer wall of the inner Venturi tube 4.

As a preferable mode of the above embodiment, a tail pipe 5 is connected to the tail end of the inner venturi tube 4; the tail pipe 5 is connected with a bubble suction pipe 6.

The utility model discloses a theory of operation:

the double venturi forms the fluidic device, the outer venturi tube 3 is the diversion and rectification, make the water form the non-free jet by the restriction of the pipe wall, more important is that it forms the contracted flow at the minimum position of its cross-sectional area of circulation, the velocity of flow of outlet water is improved, because the ambient air is rolled away by the jet and forms the vacuum at the entrance of the throat, the static pressure is reduced, because this cross-section is just located the exit of the inner venturi tube 4 of inner hiding, the air is inhaled by the water conveyed, in this way, can further cause the air in the small venturi tube to form the submerged jet, the velocity of flow increases two times.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. An automatic defoaming device for a cooling tower is characterized in that the upper end of a branch pipe (2) is connected with an outer Venturi tube (3); an inner Venturi tube (4) is sleeved in the connecting section of the outer Venturi tube (3) and the branch tube (2); the tail end of the inner Venturi tube (4) is connected with a bubble suction tube (6); the lower end of the bubble suction pipe (6) is communicated to a water collecting basin of the cooling tower; the tail end of the outer Venturi tube (3) is hermetically connected with the outer wall of the inner Venturi tube (4); the front end of the outer Venturi tube (3) is communicated with a water sowing basin of the cooling tower.

2. The automatic defoaming device for the cooling tower according to claim 1, characterized in that the lower port of the foam suction pipe (6) is provided with a foam suction nozzle (7).

3. The automatic defoaming device for cooling tower of claim 2, characterized in that the foam suction nozzle (7) is of duckbill structure.

4. The automatic defoaming device for cooling tower of claim 1, characterized in that the front port of the inner venturi tube (4) is located at the rear end of the contraction port of the outer venturi tube (3).

5. The automatic defoaming device for the cooling tower according to claim 1, characterized in that the tail end of the outer venturi tube (3) is connected with a connecting pipe (8); the side wall of the connecting pipe (8) is communicated with the branch pipe (2); the tail end of the connecting pipe (8) is hermetically connected with the outer wall of the inner Venturi tube (4).

6. The automatic defoaming device for cooling tower as claimed in claim 1, wherein the tail end of the inner venturi tube (4) is connected with a tail pipe (5); the tail pipe (5) is connected with the bubble suction pipe (6).