CN213711891U

CN213711891U - Servo lift valve of flue

Info

Publication number: CN213711891U
Application number: CN202022740463.5U
Authority: CN
Inventors: 司彪
Original assignee: Tianjin Sikenuo Heat Energy Technology Co ltd
Current assignee: Tianjin Sikenuo Heat Energy Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-16
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a flue servo lifting valve, which comprises a valve body, wherein a through hole is transversely arranged in the valve body at the middle position, a valve clack is connected right above the through hole, and a steel cable is arranged at the top of the valve clack; the valve body top has the motor through motor support mounting, and the output shaft end of motor is connected with the reduction gear, and the output shaft end of reduction gear is equipped with the axis of rotation, and the axis of rotation passes through the bearing to be fixed on two spinal branch posts, two the pillar is all installed at valve body top position placed in the middle, installs the leading wheel above the axis of rotation, is equipped with the recess above the leading wheel, and cable wire one end is fixed at the valve clack top, and the other end is connected in. The servo lifting valve for the flue is simple to operate, the lifting of the servo control flue valve clack is met, the speed of closing the flue valve by the vertical flue is improved, the backflow of flue gas and harmful gas is effectively prevented, the harm of the backflow of flue gas and harmful gas to a boiler and manpower is reduced, and the economic loss is reduced.

Description

Servo lift valve of flue

Technical Field

The utility model relates to a flue valve technical field specifically is a servo lift valve of flue.

Background

The flue valve is a safety guard of the flue, can effectively prevent toxic gas and oil smoke exhausted from the public flue from flowing backward into the boiler, and can prevent mosquitoes, moths, flies and other flying insects as well as geckos and other reptiles from entering a family, and most importantly, the flue valve can ensure the sanitation and safety of the air in the boiler.

The common flue valves are of two types, namely a vertical pulse type and a rotary servo type. In general, a servo-type flue valve needs to be designed to be installed in a rotating mode, and is not suitable for special flues, such as a vertical flue, for the vertical flue, the opening and closing of the flue valve are complex, and the opening and closing of the flue valve are delayed, so that smoke and harmful gas flow backwards into a boiler, harm is brought to the boiler and boiler workers, and economic loss is caused. Therefore, we propose a flue servo lift valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a servo lift valve of flue to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the design is a servo lift valve of flue, including the valve body, its characterized in that: a through hole is transversely formed in the middle of the interior of the valve body, a valve clack is connected right above the through hole, and a steel cable is installed at the top of the valve clack;

the valve body top has the motor through motor support mounting, the output shaft end of motor is connected with the reduction gear, the output shaft end of reduction gear is equipped with the axis of rotation, the axis of rotation passes through the bearing to be fixed on two spinal branch posts, two the pillar is all installed at valve body top position placed in the middle, install the leading wheel above the axis of rotation, be equipped with the recess above the leading wheel, cable wire one end is fixed at the valve clack top, and the other end is connected in the recess of leading wheel.

Preferably, a smoke inlet pipe is installed at the bottom of the valve body, and a smoke outlet pipe is connected to the right end of the valve body.

Preferably, a smoke sensor is arranged on the inner wall of the left side of the valve body.

Preferably, the bottom of the smoke inlet pipe is connected with a flue.

Preferably, a sealing rubber ring is arranged on the outer wall of the valve clack.

Compared with the prior art, the beneficial effects of the utility model are that: the flue servo lifting valve can vertically block the flow of flue gas by arranging the valve clack, thereby achieving the effect of intercepting the flue gas; the motor, the reducer, the rotating shaft, the guide wheel and the steel cable are arranged, so that the valve clack can be driven by the motor to be driven to move towards the lifting valve clack through the guide wheel, and the effect of automatically lifting the valve clack is achieved; through setting up smoke transducer, can the inside flue gas content of real-time supervision valve body, reach the effect of monitoring flue gas content. The servo lifting valve for the flue is simple to operate, the lifting of the servo control flue valve clack is met, the speed of closing the flue valve by the vertical flue is improved, the backflow of flue gas and harmful gas is effectively prevented, the harm of the backflow of flue gas and harmful gas to a boiler and manpower is reduced, and the economic loss is reduced.

Drawings

Fig. 1 is a schematic structural view of a servo lift valve for a flue according to the present invention.

In the figure: the smoke exhaust device comprises a valve body 1, a smoke inlet pipe 2, a through hole 3, a valve clack 4, a motor support 5, a motor 6, a speed reducer 7, a rotating shaft 8, a guide wheel 9, a groove 10, a support 11, a bearing 12, a steel cable 13, a smoke outlet pipe 14, a smoke sensor 15 and a smoke flue 16.

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, the present invention provides a technical solution: the utility model provides a servo lift valve of flue, includes valve body 1, and 1 inside position placed in the middle of the valve body transversely is equipped with through-hole 3, is connected with valve clack 4 directly over through-hole 3, and cable wire 13 is installed at valve clack 4 top. An S-shaped partition plate is welded in the valve body 1, a through hole 3 is formed in the partition plate, and the outer diameter of the valve clack 4 is slightly larger than the aperture of the through hole 3.

The motor 6 is installed through motor support 5 at 1 top of valve body, the output shaft end of motor 6 is connected with reduction gear 7, the output shaft end of reduction gear 7 is equipped with axis of rotation 8 through the shaft coupling, axis of rotation 8 passes through bearing 12 to be fixed on two spinal branch posts 11, two spinal branch posts 11 are all installed at 1 top position placed in the middle of the valve body, install leading wheel 9 above the axis of rotation 8, be equipped with recess 10 above the leading wheel 9, 13 one ends of cable wire are fixed at valve clack 4 tops, the other end is connected in the recess 10 of leading wheel. The motor 6 is a servo forward and reverse rotation speed reducing motor, a wiring end of the motor 6 is externally connected with a power supply and a control switch through a wire, the start and stop of the motor 6 are controlled through the control switch, the steel cable 13 is fixed in the groove 10 of the guide wheel 9 through rivets, the steel cable 13 is prevented from falling off from the guide wheel 9, and the motor 6 is ensured to drive the guide wheel 9 to drive the valve clack 4 to lift.

Specifically, in the using process of the flue servo lifting valve, firstly, a valve body 1 is arranged at a smoke outlet at the top of a flue 16 through a smoke inlet pipe 2, a control switch of a control motor 6, a reverse rotation motor 6 slowly lowers a valve clack 4 through a guide wheel 9, then, the control switch of a smoke sensor 15 is turned on, the smoke sensor 15 is turned on, smoke is gradually generated along with the use of a boiler and reaches the valve body 1 through the flue 16, the smoke sensor 15 detects that the content of the smoke in the valve body 1 is increased to a certain concentration, the smoke sensor 15 transmits a detection signal to a PLC control system, the PLC control system converts the detection signal into current, further, the motor 6 is controlled to rotate forwards, the valve clack 4 is driven to slowly rise through the guide wheel 9, the smoke passes through a through hole 3 and is discharged to the outside of the valve body 1, and finally, the smoke sensor, when the smoke concentration in the valve body 1 is reduced to a certain concentration, the smoke sensor 15 converts a detection signal into a current signal, and then transmits the current signal to the PLC control system, the PLC control system controls the motor 6 to rotate reversely, the valve clack 4 is slowly put down, and the valve body 1 is closed.

Furthermore, the bottom of the valve body 1 is provided with a smoke inlet pipe 2, and the right end of the valve body 1 is connected with a smoke outlet pipe 14.

Further, a smoke sensor 15 is arranged on the inner wall of the left side of the valve body 1. The wiring end of smoke sensor 15 is connected with power, control switch and PLC control system through the wire is external, through opening of control switch control smoke sensor 15, smoke sensor 15 detects the content concentration of the inside flue gas of valve body 1, converts the detected signal into current signal, gives PLC control system for, and PLC control system handles current signal, and then control motor 6 just reverses.

Further, the bottom of the smoke inlet pipe 2 is connected with a flue 16.

Furthermore, a sealing rubber ring is arranged on the outer wall of the valve clack 4. The sealing rubber ring can effectively prevent the smoke from leaking, ensures the sealing property of the valve clack 4, and effectively prevents the smoke and harmful gases from flowing back into the flue 16 due to the poor sealing property of the valve body 1.

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 a servo lift valve of flue, includes valve body (1), its characterized in that: a through hole (3) is transversely formed in the middle position inside the valve body (1), a valve clack (4) is connected right above the through hole (3), and a steel cable (13) is installed at the top of the valve clack (4);

motor (6) are installed through motor support (5) at valve body (1) top, the output shaft end connection of motor (6) has reduction gear (7), the output shaft end of reduction gear (7) is equipped with axis of rotation (8), axis of rotation (8) are fixed on two spinal branch posts (11) through bearing (12), two prop post (11) are all installed at valve body (1) top position placed in the middle, install leading wheel (9) above axis of rotation (8), be equipped with recess (10) above leading wheel (9), valve clack (4) top is fixed to cable wire (13) one end, and the other end is connected in recess (10) of leading wheel (9).

2. A flue servo lift valve as claimed in claim 1, wherein: the smoke inlet pipe (2) is installed at the bottom of the valve body (1), and the smoke outlet pipe (14) is connected to the right end of the valve body (1).

3. A flue servo lift valve as claimed in claim 1, wherein: and a smoke sensor (15) is arranged on the inner wall of the left side of the valve body (1).

4. A flue servo lift valve as claimed in claim 2 wherein: the bottom of the smoke inlet pipe (2) is connected with a flue (16).

5. A flue servo lift valve as claimed in claim 1, wherein: and a sealing rubber ring is arranged on the outer wall of the valve clack (4).