CN210241887U

CN210241887U - Auxiliary smoke exhaust fan based on Bernoulli principle

Info

Publication number: CN210241887U
Application number: CN201920934059.6U
Authority: CN
Inventors: Guoyong Yang; 杨国永; Zhiwu Xia; 夏芝武
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-03
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses an auxiliary smoke ventilator based on Bernoulli's principle, including discharging fume pipe, micro-blower and guide duct, the upper end of discharging fume the pipe is provided with the tobacco pipe front end, the lower extreme of discharging fume the pipe is provided with the tobacco pipe rear end, be provided with the mount in the middle of the side of discharging fume the pipe, the centre of mount is fixed with micro-blower, micro-blower's air outlet and discharge fume and be connected with the guide duct between the pipe. The utility model discloses work based on Bernoulli's principle, the guide duct is during the leading-in pipe of discharging fume of compressed air, when compressed air spouts the mouth of pipe, will produce the vacuum in the tobacco pipe rear end, and the flue gas of tobacco pipe rear end will be taken out the tobacco pipe front end and discharge from this, realizes the quick discharge of flue gas, can reduce the power of air-blower, and reduces the energy consumption, and fan and high temperature flue gas are not direct contact, and the fan can adopt plastic products, effective reduce cost.

Description

Auxiliary smoke exhaust fan based on Bernoulli principle

Technical Field

The utility model belongs to the technical field of the induced-draft fan, concretely relates to supplementary induced-draft fan based on Bernoulli's principle.

Background

The tragic training of serious casualties caused by fire accidents in many high-rise buildings, underground engineering, traffic tunnels and public entertainment places leads people to clearly recognize the importance and the necessity of designing and installing a smoke prevention and exhaust system and ensuring the long-term good performance of the system. The fact of fire tells people that the smoke prevention and exhaust system can effectively control the spread of smoke when the fire happens; and the smoke is discharged quickly and timely, and the smoke-discharging device plays a key role in people and disaster relief work. The fire-fighting equipment is important fire-fighting equipment which is used for rescuing people successfully, and needs to be designed and installed well, maintained well and guaranteed in a good performance state for a long time in a service life. A system consisting of all smoke exhausting facilities which must be arranged in a building according to the requirements of the building specification is called a smoke exhausting system. In a power plant, a smoke exhaust system comprises an induced draft fan, a flue, a gate, a chimney and the like. The task is to exhaust the flue gas generated after the combustion of the furnace fuel.

The prior art has the following problems: the existing auxiliary smoke exhauster is often too simple in structure, causes unsatisfactory smoke exhausting effect, and is high in energy consumption, serious in component loss and short in service life.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an auxiliary smoke ventilator based on Bernoulli's principle has simple structure, and smoke discharging effect is good, characteristics that the energy consumption is low.

In order to achieve the above object, the utility model provides a following technical scheme: the auxiliary smoke exhaust machine based on the Bernoulli principle comprises a smoke exhaust pipe, a micro blower and an air guide pipe, wherein the upper end of the smoke exhaust pipe is provided with the front end of a smoke pipe, the lower end of the smoke exhaust pipe is provided with the rear end of the smoke pipe, a fixing frame is arranged in the middle of the side edge of the smoke exhaust pipe, the micro blower is fixed in the middle of the fixing frame, and the air guide pipe is connected between an air outlet of the micro blower and the smoke exhaust pipe.

Preferably, the surfaces of the front end of the smoke tube and the rear end of the smoke tube are both provided with dust screens.

Preferably, one end of the air guide pipe, which is positioned inside the smoke exhaust pipe, is provided with an L-shaped structure, and the opening of the air guide pipe is upward.

Preferably, the surfaces of the smoke exhaust pipe and the air guide pipe are coated with corrosion-resistant coatings.

The air guide pipe and the smoke exhaust pipe are fixed through a flange plate and a fastening bolt, and a sealing gasket is arranged at the joint between the air guide pipe and the smoke exhaust pipe.

Preferably, the air outlet of the micro blower is fixed with the air guide pipe through a bolt, and a sealing gasket is arranged at the joint between the micro blower and the air guide pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses work based on Bernoulli's principle, the guide duct is during the leading-in pipe of discharging fume of compressed air, when compressed air spouts the mouth of pipe, will produce the vacuum in the tobacco pipe rear end, and the flue gas of tobacco pipe rear end will be taken out the tobacco pipe front end and discharge from this, realizes the quick discharge of flue gas, can reduce the power of air-blower, and reduces the energy consumption, and fan and high temperature flue gas are not direct contact, and the fan can adopt plastic products, effective reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

In the figure: 1. a smoke exhaust pipe; 2. a fixed mount; 3. a micro blower; 4. an air guide pipe; 5. the rear end of the smoke tube; 6. the front end of the smoke tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides the following technical solutions: an auxiliary smoke exhaust machine based on Bernoulli principle comprises a smoke exhaust pipe 1, a micro blower 3 and an air guide pipe 4, wherein the upper end of the smoke exhaust pipe 1 is provided with a smoke pipe front end 6, the lower end of the smoke exhaust pipe 1 is provided with a smoke pipe rear end 5, in order to facilitate the interception of dust, dust screens are respectively arranged on the surfaces of the smoke pipe front end 6 and the smoke pipe rear end 5, a fixing frame 2 is arranged in the middle of the side edge of the smoke exhaust pipe 1, the micro blower 3 is fixed in the middle of the fixing frame 2, the air guide pipe 4 is connected between an air outlet of the micro blower 3 and the smoke exhaust pipe 1, in order to facilitate the blowing circulation of gas, one end of the air guide pipe 4, which is positioned in the smoke exhaust pipe 1, is arranged to be in an L-shaped structure, the opening of the air guide pipe 4 is upward, in order to improve the corrosion resistance, the surfaces of the smoke exhaust pipe 1 and the air guide pipe 4 are both, and a sealing gasket is arranged at the joint between the air guide pipe 4 and the smoke exhaust pipe 1, in order to improve the fixing sealing property, the air outlet of the micro blower 3 is fixed with the air guide pipe 4 through a bolt, and the sealing gasket is arranged at the joint between the micro blower 3 and the air guide pipe 4.

The utility model discloses well micro-blower 3 is for the widely known technique that applies to daily life that has disclosed, and its theory of operation is: the medicine mainly comprises the following six parts: motor, air cleaner, air-blower body, air chamber, base (also can the oil tank), oil drip mouth. The blower operates eccentrically by means of offset rotors in the cylinder and sucks, compresses and discharges air by means of volume change between vanes in the rotor groove, and the model number of the blower is 2 HB-720.

The utility model discloses a theory of operation and use flow: the utility model discloses during the use, install the induced-draft fan in suitable position, when micro-blower 3 rotates the operation, by 4 leading-in exhaust pipe 1 of compressed air of guide duct, when compressed air spouts the mouth of pipe, will produce the vacuum at tobacco pipe rear end 5, the flue gas of tobacco pipe rear end 5 will be taken out tobacco pipe front end 6 and discharge from this, realizes the quick discharge of flue gas, and reduces the energy consumption, simple structure, and is practical portable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an auxiliary induced-draft fan based on Bernoulli's principle, includes exhaust pipe (1), micro-blower (3) and guide duct (4), its characterized in that: the smoke exhaust device is characterized in that the upper end of the smoke exhaust pipe (1) is provided with a smoke pipe front end (6), the lower end of the smoke exhaust pipe (1) is provided with a smoke pipe rear end (5), a fixing frame (2) is arranged in the middle of the side edge of the smoke exhaust pipe (1), a micro air blower (3) is fixed in the middle of the fixing frame (2), and an air guide pipe (4) is connected between an air outlet of the micro air blower (3) and the smoke exhaust pipe (1).

2. An auxiliary extractor hood based on bernoulli's principle according to claim 1, wherein: dust screens are arranged on the surfaces of the front end (6) of the smoke pipe and the rear end (5) of the smoke pipe.

3. An auxiliary extractor hood based on bernoulli's principle according to claim 1, wherein: one end of the air guide pipe (4) positioned in the smoke exhaust pipe (1) is of an L-shaped structure, and the opening of the air guide pipe (4) is upward.

4. An auxiliary extractor hood based on bernoulli's principle according to claim 1, wherein: the surfaces of the smoke exhaust pipe (1) and the air guide pipe (4) are coated with corrosion-resistant coatings.

5. An auxiliary extractor hood based on bernoulli's principle according to claim 1, wherein: the air guide pipe (4) and the smoke exhaust pipe (1) are fixed through a flange plate and a fastening bolt, and a sealing gasket is arranged at the joint between the air guide pipe (4) and the smoke exhaust pipe (1).

6. An auxiliary extractor hood based on bernoulli's principle according to claim 1, wherein: the air outlet of the micro air blower (3) is fixed with the air guide pipe (4) through a bolt, and a sealing gasket is arranged at the joint between the micro air blower (3) and the air guide pipe (4).