CN212456920U

CN212456920U - Boiler flue negative pressure protection device

Info

Publication number: CN212456920U
Application number: CN202020967751.1U
Authority: CN
Inventors: 张艳; 顾永光; 胡良志
Original assignee: Lianyungang Shengyuan Technology Co ltd; Jinling Institute of Technology
Current assignee: Lianyungang Shengyuan Technology Co ltd; Jinling Institute of Technology
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-02
Anticipated expiration: 2030-06-01

Abstract

The utility model provides a boiler flue negative pressure protection device, including the fan, lead electrical pillar, the piston, the wind-guiding pipeline, the limiting plate, the guide post, the ventilation groove, the mount pad, buffer spring and electrically conductive seat, the fan is installed on the wind-guiding pipeline, the mount pad is installed inside the wind-guiding pipeline, the ventilation groove is seted up at mount pad right-hand member face, the guide post is installed in mount pad intermediate position department, the limiting plate is installed in guide post one end, the piston is installed at the guide post other end, the buffer spring cover is established in the guide post annular side, electrically conductive seat is installed on the inner wall of the both sides that the wind-guiding pipeline is relative, it installs at the piston left end face to lead electrical pillar, wind-guiding pipeline left end face is connected with the flue, the utility.

Description

Boiler flue negative pressure protection device

Technical Field

The utility model relates to a boiler flue negative pressure protection device belongs to boiler flue negative pressure protection device technical field.

Background

The negative pressure is a gas pressure state lower than the normal pressure (namely, one atmospheric pressure is often said), and when the boiler flue is subjected to negative pressure protection, a boiler flue negative pressure protection device is required.

Among the prior art, current boiler flue negative pressure protection device is when using, and when the inside negative pressure of boiler flue was great, causes boiler flue's damage very easily, and the protecting effect is not good, influences life, needs a boiler flue negative pressure protection device to solve the problem that the aforesaid appears now urgently.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a boiler flue negative pressure protection device to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, the composite mounting of being convenient for, the protecting effect is good, and the practicality is strong.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a boiler flue negative pressure protection device, includes the fan, leads electrical pillar, piston, wind-guiding pipeline, limiting plate, guide post, ventilation groove, mount pad, buffer spring and electrically conductive seat, the fan is installed on the wind-guiding pipeline, the mount pad is installed inside the wind-guiding pipeline, the ventilation groove is seted up at the mount pad right-hand member face, the guide post is installed in mount pad intermediate position department, the limiting plate is installed in guide post one end, the piston is installed at the guide post other end, the buffer spring cover is established in guide post annular side, electrically conductive seat is installed on the relative both sides inner wall of wind-guiding pipeline, it installs at the piston left end face to lead electrical pillar, wind-guiding pipeline left end face is connected with the flue.

Further, a net rack plate is installed inside the air guide pipeline, a second filter screen is installed inside the net rack plate, a force application plate is installed on the upper end face of the net rack plate, a force application groove is formed in the upper end face of the force application plate, and a sealing sleeve is sleeved on the outer surface of the force application plate.

Further, still include first filter screen, the mounting groove has been seted up to the air guide duct right-hand member face, first filter screen and mounting groove phase-match.

Furthermore, a check valve is installed on the upper end face of the fan.

Further, the conductive column is connected with the fan through a conducting wire, and the conductive seat and the fan are respectively connected with an external power supply through conducting wires.

Furthermore, a connecting hole is formed in the right end face of the conductive seat, and the diameter of the conductive column is matched with the inner diameter of the connecting hole.

Furthermore, a through hole is formed in the right end face of the mounting seat, and the diameter of the guide column is matched with the inner diameter of the through hole.

The utility model has the advantages that: the utility model discloses a boiler flue negative pressure protection device, when using, at first when the inside negative pressure of flue is great, a power left is applyed to the piston to external atmospheric pressure, the piston is to the left side motion, thereby drive the guide post motion to the left side, buffer spring produces elastic deformation this moment, when guide post and wire seat contact, the circuit switch-on, the fan begins work and produces wind, send outside gas to the flue inside through the guide duct, thereby reduce the inside negative pressure of flue, play and carry out the effect of negative pressure protection to the flue.

Because of the pipeline of wind scooper internally mounted has the net rack board, net rack board internally mounted has the second filter screen, the application of force board is installed to the net rack board up end, application of force groove has been seted up to application of force board up end, application of force board surface cover is equipped with the seal cover, this design is convenient for filter the inside impurity of flue, prevent that impurity from getting into the influence piston motion, and take out the net rack board through application of force board, prevent that impurity from getting into the influence piston motion, because of still including first filter screen, the mounting groove has been seted up to the pipeline of wind scooper right-hand member face, first filter screen and mounting groove phase-match, this design prevents that external impurity from getting into inside the pipeline of wind scooper, install the check valve because of the fan up end, this design is through using the check valve, prevent.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a boiler flue negative pressure protection device of the present invention;

FIG. 2 is a front cross-sectional view of the boiler flue negative pressure protection device of the present invention;

FIG. 3 is an enlarged view of A in the negative pressure protection device for a boiler flue of the present invention;

in the figure: the device comprises a check valve 1, a fan 2, a conductive column 3, a piston 4, an air guide pipeline 5, a first filter screen 6, a limiting plate 7, a guide column 8, a ventilation groove 9, a mounting seat 10, a buffer spring 11, a conductive seat 12, a force application plate 13, a sealing sleeve 14, a net rack plate 15, a second filter screen 16, a force application groove 17 and a flue 18.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a boiler flue negative pressure protection device, including fan 2, lead electrical pillar 3, piston 4, wind-guiding pipeline 5, limiting plate 7, guide post 8, ventilation groove 9, mount pad 10, buffer spring 11 and electrically conductive seat 12, fan 2 installs on wind-guiding pipeline 5, mount pad 10 is installed inside wind-guiding pipeline 5, ventilation groove 9 is seted up at mount pad 10 right-hand member face, guide post 8 is installed in 10 intermediate position departments of mount pad, limiting plate 7 is installed in 8 one end of guide post, piston 4 is installed at the 8 other ends of guide post, buffer spring 11 cover is established at 8 annular side faces of guide post, electrically conductive seat 12 is installed on the relative both sides inner wall of wind-guiding pipeline 5, it installs at 4 left end faces of piston to lead

electrical pillar

3, 5 left end faces of wind-guiding pipeline.

5 internally mounted of ducting has rack plate 15, rack plate 15 internally mounted has second filter screen 16, application of force board 13 is installed to rack plate 15 up end, application of force slot 17 has been seted up to application of force board 13 up end, application of force board 13 surface cover is equipped with seal cover 14, this design is convenient for filter 18 inside impurity in the flue, prevent that impurity from getting into to influence the motion of piston 4, and take out rack plate 15 through application of force board 13, impurity on second filter screen 16 is cleared up, still include first filter screen 6, the mounting groove has been seted up to ducting 5 right-hand member face, first filter screen 6 and mounting groove phase-match, this design prevents that external impurity from getting into inside ducting 5, check valve 1 is installed to fan 2 up end, this design is through using check valve 1, prevent the gaseous backward flow.

Lead electrical pillar 3 and be connected with fan 2 through the wire, electrically conductive seat 12 and fan 2 are connected with external power supply respectively through the wire, and this design is convenient for control the switching to fan 2 to reduce the inside negative pressure of flue 18, the connecting hole has been seted up to electrically conductive seat 12 right-hand member face, lead electrical pillar 3 diameter and connecting hole internal diameter phase-match, this design is convenient for lead electrical pillar 3 and is connected with electrically conductive seat 12, the through-hole has been seted up to mount pad 10 right-hand member face, guide post 8 diameter and through-hole internal diameter phase-match.

As an embodiment of the present invention: when the inside negative pressure of flue 18 is great, external atmospheric pressure exerts a power left to piston 4, piston 4 moves to the left, thereby drive the motion of guide post 8 to the left, buffer spring 11 produces elastic deformation this moment, when guide post 8 and wire holder contact, the circuit switch-on, external power supplies gives the electric energy that fan 2 provided, fan 2 begins work and produces wind, send external gas to inside flue 18 through guide duct 5, thereby reduce the inside negative pressure of flue 18, the purpose of negative pressure protection has been realized, prevent under the effect of first filter screen 6 and second filter screen 16 that impurity from getting into inside guide duct 5, influence piston 4 motion, improve the stability of negative pressure protection, improved the utility model discloses a practicality.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a boiler flue negative pressure protection device which characterized in that: the air guide device comprises a fan, a conductive column, a piston, an air guide pipeline, a limiting plate, a guide column, a ventilation groove, a mounting seat, a buffer spring and a conductive seat, wherein the fan is mounted on the air guide pipeline, the mounting seat is mounted inside the air guide pipeline, the ventilation groove is formed in the right end face of the mounting seat, the guide column is mounted in the middle of the mounting seat, the limiting plate is mounted at one end of the guide column, the piston is mounted at the other end of the guide column, the buffer spring is sleeved on the annular side face of the guide column, the conductive seat is mounted on the inner walls of two opposite sides of the air guide pipeline, the conductive column is mounted on the left end face of.

2. The boiler flue negative pressure protection device of claim 1, wherein: the air guide pipeline is internally provided with a net rack plate, a second filter screen is arranged in the net rack plate, the upper end face of the net rack plate is provided with a force application plate, the upper end face of the force application plate is provided with a force application groove, and the outer surface of the force application plate is sleeved with a sealing sleeve.

3. The boiler flue negative pressure protection device of claim 1, wherein: still include first filter screen, the mounting groove has been seted up to the air guide duct right-hand member face, first filter screen and mounting groove phase-match.

4. The boiler flue negative pressure protection device of claim 1, wherein: and a one-way valve is arranged on the upper end face of the fan.

5. The boiler flue negative pressure protection device of claim 1, wherein: the conductive column is connected with the fan through a conducting wire, and the conductive seat and the fan are respectively connected with an external power supply through conducting wires.

6. The boiler flue negative pressure protection device of claim 1, wherein: the right end face of the conductive seat is provided with a connecting hole, and the diameter of the conductive column is matched with the inner diameter of the connecting hole.

7. The boiler flue negative pressure protection device of claim 1, wherein: the right end face of the mounting seat is provided with a through hole, and the diameter of the guide column is matched with the inner diameter of the through hole.