CN114017773B

CN114017773B - Novel anti-backfire gas mixer for gas generator set

Info

Publication number: CN114017773B
Application number: CN202111535962.3A
Authority: CN
Inventors: 朱军; 李滨滨
Original assignee: Dongying Yuekai Petroleum Equipment Co ltd
Current assignee: Dongying Yuekai Petroleum Equipment Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-22
Anticipated expiration: 2041-12-16
Also published as: CN114017773A

Abstract

The invention discloses a novel anti-backfire gas mixer for a gas generator set, which belongs to the technical field of gas generator sets and comprises an outer conveying pipe, wherein an inner conveying pipe is clamped and fixed in the outer conveying pipe, an outer sleeve box is sleeved outside the outer conveying pipe and the inner conveying pipe, an inner first chamber is formed between the outer conveying pipe and the inner conveying pipe in annular distribution, and an inner second chamber is formed in the inner conveying pipe; the top of the inner chamber is fixedly sealed with a sealing partition plate, at least four inclined conveying pipes which convey air to the inner side in a dispersing manner are arranged on the sealing partition plate in a circumferential array mode, the inclined conveying pipes are formed by welding pipe seats and arc-shaped caps, a plurality of air outlets distributed in a circumferential array mode are formed in the outer walls of the arc-shaped caps, annular resistance pieces which contract upwards are welded on the inner walls of the arc-shaped caps, and arc-shaped backflow cavities communicated with the air outlets are formed in the arc-shaped caps through the annular resistance pieces. This gas generating set is with novel anti-backfire gas blender, the mixing rate is higher, is favorable to improving ignition efficiency.

Description

Novel anti-backfire gas mixer for gas generator set

Technical Field

The invention belongs to the technical field of gas generator sets, and particularly relates to a novel anti-backfire gas mixer for a gas generator set.

Background

The gas generator set is a novel generator set developed to adapt to the environmental protection requirements of the world and the new market environment.

According to the Chinese patent with the application number of CN201210056880.5, namely the gas engine intake backfire arrester, at present, a special backfire arrester is rarely installed in an intake system of a gas automobile engine, and after the backfire arrester is installed at a small part, the backfire arrester has an unobvious anti-backfire effect and short service life, and the intake resistance is increased, so that the power of the engine is reduced, and the application and popularization of the gas automobile are greatly influenced.

In the prior art, the gas generating set during operation needs the blender to mix gas and air, but present relevant blender mostly can not be with gas and air with carrying out decentralized processing for in the mixing of the two is simple lets in a space, the mixing rate of the two is very low, consequently appear the phenomenon that the ignition can not ignite many times easily.

Disclosure of Invention

The invention aims to provide a novel anti-backfire gas mixer for a gas generator set, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a novel anti-backfire gas mixer for a gas generator set comprises an outer conveying pipe, wherein an inner conveying pipe is fixedly clamped in the outer conveying pipe, an outer sleeve box is sleeved outside the outer conveying pipe and the inner conveying pipe, an inner first chamber is annularly distributed between the outer conveying pipe and the inner conveying pipe, and an inner second chamber is formed in the inner conveying pipe;

a sealing partition plate is fixedly sealed at the top of the inner chamber, and at least four inclined conveying pipes which convey air to the inner side in a dispersing way are arranged on the sealing partition plate in a circumferential array mode, wherein the inclined conveying pipes are formed by welding pipe seats and an arc-shaped cap, a plurality of air outlets distributed in a circumferential array mode are formed in the outer wall of the arc-shaped cap, annular resistance pieces which are contracted upwards are welded on the inner wall of the arc-shaped cap, and an arc-shaped backflow cavity communicated with the air outlets is formed in the arc-shaped cap through the annular resistance pieces;

the top of the inner conveying pipe is movably sealed with a platform cover, a bearing beam is connected between the outer conveying pipe and the inner conveying pipe, the bearing beam is provided with a hood and an inner extension seat with one end communicated into the inner two chambers, a gas outlet ring which operates in a fixed shaft mode is arranged above the platform cover, the top wall of the gas outlet ring is connected with a plurality of extension pipes which are designed in an inclined mode and used for dispersedly conveying gas to the outer side of the extension pipes, and the platform cover is driven to operate through a driving mechanism arranged on the hood and the inner extension seat;

two mounting boxes are symmetrically mounted on the top wall of the inner cavity of the outer sleeve box, centrifugal fans exhausting air in opposite directions are mounted in the two mounting boxes, and one ends of the two mounting boxes, which are opposite to each other, are connected with extending air pipes for exhausting heat and guiding the air.

As a preferred embodiment, two air bypass pipes extending into the inner chamber are symmetrically arranged on the bottom wall of the outer conveying pipe, four inclined conveying pipes penetrate through the sealing partition plate and extend into the inner chamber, and the four inclined conveying pipes are welded and fixed with the sealing partition plate.

In a preferred embodiment, the bottom wall of the inner transmission pipe is provided with a gas main pipe extending into the inner two chambers.

In a preferred embodiment, one end of the inner extending seat is welded on the inner wall of the bearing beam, and the other end of the inner extending seat passes through the inner conveying pipe and extends into the inner two chambers.

In a preferred embodiment, the hood has a drive source inside, the inner extension base has an inner support shaft inside, the inner extension base has a horizontal fixed shaft inside and is connected to the drive source, the inner end of the inner extension base cavity inside the inner chamber has two mutually meshed bevel gears, one of the bevel gears is coaxially connected to the end of the inner support shaft away from the drive source, and the other bevel gear is coaxially sleeved on the steering shaft.

In a preferred embodiment, the top end of the steering shaft penetrates through the inner extension seat and is coaxially connected with the center of the bottom wall of the platform cover, the platform cover is connected with the gas outlet ring through the outer shaft, and the two extension pipes penetrate through the gas outlet ring and the platform cover and extend into the inner two chambers.

In a preferred embodiment, a side sliding channel surrounding the inner wall of the inner chamber is formed in the inner chamber, side sliding wheels which horizontally run are symmetrically installed at two ends of the platform cover, and the two side sliding wheels respectively abut against the side walls at two sides of the side sliding channel.

As a preferred embodiment, the two extending air pipes respectively extend downwards along the side walls at two sides of the inner cavity of the outer sleeve box and are welded with the inner wall of the outer sleeve box, and the tail ends of the two extending air pipes are bent to the outer wall of the outer conveying pipe and are welded and fixed with the outer conveying pipe.

In a preferred embodiment, the openings of the two extending air pipe ends are vertically upward.

In a preferred embodiment, the bottom walls of the two mounting boxes are welded with convex lower ring plates, a layer of asbestos plate is adhered to the bottom walls of the lower ring plates, and the surfaces of the lower ring plates are provided with a plurality of through holes penetrating through the asbestos plate.

This gas generating set is with novel anti-backfire gas mixer's technological effect and advantage:

when air passes through the four inclined delivery pipes on the platform cover from the air bypass pipe, the air is shunted under the action of the arc-shaped backflow cavity and the annular baffle plate in the inclined delivery pipes, and the shunted air is diffused towards eight directions of four sides of the inclined delivery pipes simultaneously, so that the air is synchronously spread everywhere in the outer sleeve box, and the gas is directly and dispersedly mixed with the air after entering the outer sleeve box, the mixing rate is higher, the ignition efficiency is improved, the gas combustion rate is improved, and the probability that the gas cannot be ignited even after multiple times of ignition is reduced;

the platform cover and the gas outlet ring are driven by the driving source, the inner fulcrum shaft and the bevel gear to slowly run, meanwhile, the extension pipe on the gas outlet ring conveys gas to an air outlet under a rotating state, so that the gas is better dispersed and mixed with the air, and the mixed gas has a tendency of upward dispersion under the action of the centrifugal fan, therefore, the mode not only can ensure that the gas and the air are more quickly and uniformly mixed, but also can ensure that the mixed gas is quickly dispersed to the outside, and improves the gas conveying efficiency;

set up centrifugal fan in the hybrid chamber messenger for air and gas are all in the automatic jacket case that gets into under the centrifugal fan effect, and rethread blast pipe is constantly discharged to the external world, avoids the tempering phenomenon to take place to a great extent.

Drawings

FIG. 1 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 taken along the direction E-E;

FIG. 3 is an enlarged view of the embodiment of the present invention at A in FIG. 2;

FIG. 4 is a cross-sectional view of the embodiment of FIG. 1 taken along the direction F-F;

FIG. 5 is an enlarged view of the embodiment of the invention at B in FIG. 4;

FIG. 6 is an enlarged view of the embodiment of the present invention at C in FIG. 4;

FIG. 7 is an overall cross-sectional view of the present invention;

fig. 8 is an enlarged view of the embodiment of the invention at D in fig. 7.

In the figure: 100. an external delivery pipe; 101. an air bypass duct; 102. an inner chamber; 103. sealing the partition plate; 104. conveying the pipe obliquely; 1041. a tube holder; 1042. an arc-shaped cap; 1043. an arc-shaped reflux cavity; 1044. an annular barrier; 1045. an air outlet; 200. an inner conveying pipe; 2001. a side slide; 201. a gas main pipe; 202. an inner two-chamber; 203. a platform cover; 2031. a side pulley; 204. a gas outlet ring; 205. an extension tube; 206. a bearing beam; 207. a hood; 208. an inward extending seat; 209. an inner fulcrum; 210. a bevel gear; 211. a steering shaft; 212. an outer shaft; 300. an outer jacket box; 301. an exhaust pipe; 302. mounting a box; 303. a centrifugal fan; 304. extending the trachea; 305. a lower ring plate; 3051. asbestos board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

In order to convey air and fuel gas into the same space, the invention discloses a novel anti-backfire gas mixer for a gas generator set, which at least comprises an outer conveying pipe 100, wherein an inner conveying pipe 200 is clamped in the outer conveying pipe 100, the outer conveying pipe 100 and the inner conveying pipe 200 are both arranged inside an outer jacket box 300, the bottom walls of the outer conveying pipe 100 and the inner conveying pipe 200 are welded with the bottom wall of the inner cavity of the outer jacket box 300, and the mixing of the air and the fuel gas is completed in the inner cavity of the outer jacket box 300, as shown in fig. 1 to 8;

the inner conveying pipe 200 penetrates into the outer conveying pipe 100 from the bottom of the outer conveying pipe 100 and extends to the upper part of the outer conveying pipe 100, an annular space is formed between the outer conveying pipe 100 and the inner conveying pipe 200, the space is an inner chamber 102, and an air bypass pipe 101 extending into the inner chamber 102 is arranged on the bottom wall of the outer conveying pipe 100; an inner second chamber 202 is formed in the inner transmission pipe 200, and a gas main pipe 201 extending into the inner second chamber 202 is arranged at the bottom of the inner transmission pipe 200;

the working mode is as follows: the external gas pipeline sends air from the two air bypass pipes 101 to the inner first chamber 102, and the external gas pipeline sends gas from the gas main pipe 201 to the inner second chamber 202, so that the air and the gas enter the outer jacket box 300.

Example two

In order to disperse the air after the air is sent out from the air bypass pipe 101 and mix the air with the fuel gas, the invention discloses a novel anti-backfire fuel gas mixer for a fuel gas generator set, which at least comprises a sealing partition plate 103 fixedly sealed at the top of an inner chamber 102 and a plurality of inclined pipes 104 distributed in a circumferential array along the axial line of the sealing partition plate 103, wherein at least four inclined pipes 104 are arranged, all the inclined pipes 104 are welded with the sealing partition plate 103, and openings at the bottom of all the inclined pipes 104 extend into the inner chamber 102 to receive the air;

the inclined tube 104 is formed by welding a tube holder 1041 and an arc cap 1042, the section of the arc cap 1042 is arc, the inner wall of the arc cap 1042 is welded with an annular resistance sheet 1044, the inner part of the annular resistance sheet 1044 protrudes upwards, the outer wall of the arc cap 1042 is provided with a plurality of air outlets 1045 distributed in a circumferential array along the axial lead of the air outlets, and an arc reflux cavity 1043 for shunting is formed inside the arc cap 1042 through the annular resistance sheet 1044;

the working mode is as follows: the air floats from the inner cavity of the tube seat 1041, enters the arc-shaped reflux cavity 1043 under the action of the annular resistance sheet 1044, is dispersed into a plurality of strands, and is discharged from the plurality of air outlets 1045, so that the dispersion of the air is realized, and the dispersed air is conveyed towards the position close to the inner conveying tube 200.

EXAMPLE III

In order to disperse the gas after entering the inner second chamber 202 and mix the gas with the air, the invention discloses a novel anti-backfire gas mixer for a gas generator set as shown in fig. 2, 4 and 5, which at least comprises a platform cover 203 movably sealed at the top of the inner second chamber 202, an outer extension pipe 205 arranged on the platform cover 203 and used for outward dispersed delivery of the gas, and a driving facility of the platform cover 203, wherein the driving facility at least comprises a hood 207 and an inner extension seat 208 which are mutually matched, the hood 207 and the inner extension seat 208 are uniformly arranged on an L-shaped bearing beam 206, and the arrangement mode is preferably welding;

a driving source is arranged in the hood 207, the driving source is preferably a servo motor, an inner support shaft 209 is horizontally operated in the inner extension seat 208, the inner support shaft 209 is coaxially connected with an output shaft of the driving source, two bevel gears 210 which are meshed with each other are arranged in a space of an inner cavity of the inner extension seat 208, which is far away from the hood 207, one bevel gear 210 is coaxially welded with the end part of the inner support shaft 209, the other bevel gear 210 is coaxially sleeved in a steering shaft 211, and the steering shaft 211 is rotatably connected with the inner extension seat 208;

the top of the steering shaft 211 penetrates through the inward extending seat 208 and is coaxially connected with the center of the bottom wall of the platform cover 203 above the steering shaft, so that the platform cover 203 and parts above the platform cover 203 are driven to rotate, the top wall of the platform cover 203 is provided with an outer shaft 212 which is connected with a gas outlet ring 204 through the outer shaft 212, at least two outer extension pipes 205 are arranged and are distributed in a circumferential array along the axial lead of the gas outlet ring 204, the outer extension pipes 205 penetrate through the gas outlet ring 204 and the platform cover 203 and extend into the inner two chambers 202, but the bottom of the outer extension pipes 205 does not conflict with the position of the inward extending seat 208;

a side sliding channel 2001 is formed on the inner wall of the inner second chamber 202, two side pulleys 2031 are symmetrically arranged at two ends of the platform cover 203, and the two side pulleys 2031 are matched and extend into the side sliding channel 2001;

the working mode is as follows: after the gas enters the inner second chamber 202, the driving source is operated to drive the inner fulcrum 209 and the two bevel gears 210 to synchronously operate, so that the steering shaft 211 drives the platform cover 203, the gas outlet ring 204 and the plurality of extension pipes 205 to operate, the gas can enter the inner part from the openings at the bottoms of the plurality of extension pipes 205 and is discharged from the outlets at the tops of the plurality of extension pipes 205, and because the extension pipes 205 are obliquely and outwards designed, on one hand, the gas can be divided into a plurality of strands under the action of the plurality of extension pipes 205, on the other hand, the gas is dispersed when the plurality of extension pipes 205 operate and is dispersed towards the external space to be better mixed with the air close to the inner conveying pipe 200, and when the platform cover 203 operates, the side sliding wheels 2031 at the two ends slide in the side sliding channels 2001, so that the stability of the platform cover 203 is ensured.

Example four

In order to create a negative pressure environment and enable the mixed gas to be extracted outwards to avoid the backfire phenomenon to a greater extent, the invention discloses a novel backfire-proof gas mixer for a gas generator set as shown in fig. 7-8, which at least comprises a centrifugal fan 303 arranged on the top wall of the inner cavity of an outer casing 300 and an extension gas pipe 304 connected to the outside of the centrifugal fan 303, wherein at least two rows of the centrifugal fan 303 are provided, each row is at least one, the centrifugal fan 303 and the extension gas pipe 304 are in one-to-one correspondence, the extension gas pipe 304 on each centrifugal fan 303 extends downwards along the side wall of the inner cavity of the outer casing 300 and is finally bent upwards at a position close to an outer conveying pipe 100, the opening at the tail end of the extension gas pipe 304 is vertically upwards, each centrifugal fan 303 is correspondingly arranged in one mounting box 302, the bottom walls of the plurality of mounting boxes 302 are provided with an outward convex lower ring plate 305, the bottom wall of the lower ring plate 305 is adhered with a layer of asbestos plate 3051, the lower ring plate 305 and the asbestos plate 3051 are provided with a plurality of through holes penetrating through the lower ring plate and the asbestos plate respectively, so that mixed gas smoothly circulates, and the top wall of the outer jacket box 300 is also provided with a plurality of exhaust pipes 301 for assisting in exhausting the mixed gas;

the working mode is as follows: all the centrifugal fans 303 work to suck up the mixed gas, one part of the mixed gas is sent to the tail end of the centrifugal fans through the extension gas pipe 304, floats upwards at the tail end, blows the mixed gas formed by new mixing at the inner conveying pipe 200 to float upwards again, and the other part of the mixed gas is directly discharged from the exhaust pipe 301, so that the mixed gas is continuously sent out, and the tempering phenomenon is avoided to a greater extent.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a gas generating set is with novel anti-backfire gas blender, includes defeated pipe (100) outward, its characterized in that: an inner conveying pipe (200) is clamped and fixed in the outer conveying pipe (100), an outer sleeve box (300) is sleeved outside the outer conveying pipe (100) and the inner conveying pipe (200), an inner first chamber (102) is reserved between the outer conveying pipe (100) and the inner conveying pipe (200) in annular distribution, and an inner second chamber (202) is formed in the inner conveying pipe (200);

a sealing partition plate (103) is fixedly sealed at the top of the inner chamber (102), at least four inclined conveying pipes (104) for conveying air to the inner side in a dispersing manner are arranged on the sealing partition plate (103) in a circumferential array mode, the inclined conveying pipes (104) are formed by welding pipe seats (1041) and arc-shaped caps (1042), a plurality of air outlets (1045) distributed in a circumferential array mode are formed in the outer walls of the arc-shaped caps (1042), annular baffles (1044) which are contracted upwards are welded on the inner walls of the arc-shaped caps (1042), and arc-shaped backflow cavities (1043) communicated with the air outlets (1045) are formed in the arc-shaped caps (1042) through the annular baffles (1044);

the top of the inner transmission pipe (200) is movably sealed with a platform cover (203), a bearing beam (206) is connected between the outer transmission pipe (100) and the inner transmission pipe (200), a hood (207) and an inner extension base (208) with one end communicated into the inner two chambers (202) are mounted on the bearing beam (206), a gas outlet ring (204) with a fixed shaft running is arranged above the platform cover (203), the top wall of the gas outlet ring (204) is connected with a plurality of extension pipes (205) which are obliquely designed and transmit gas to the outer side of the extension pipes, a driving source is arranged in the hood (207), an inner support shaft (209) with a horizontal fixed shaft running and connected with the driving source is arranged in the inner extension base (208), two bevel gears (210) which are meshed with each other are arranged at one end of the inner two chambers (202) in the inner extension base (208), one of the bevel gears (210) is coaxially welded with the end of the inner support shaft (209), the other bevel gear (210) is coaxially sleeved in the steering shaft (211), the steering shaft (211) is rotatably connected with the inward extending seat (208), and the driving source works to drive the inner fulcrum shaft (209) and the two bevel gears (210) to synchronously rotate, so that the steering shaft (211) drives the platform cover (203), the gas outlet ring (204) and the plurality of extension pipes (205) to rotate;

the top end of the steering shaft (211) penetrates through the inner extension seat (208) and is coaxially connected with the center of the bottom wall of the platform cover (203), the platform cover (203) is connected with the gas outlet ring (204) through an outer shaft (212), and the plurality of extension pipes (205) penetrate through the gas outlet ring (204) and the platform cover (203) and extend into the inner second chamber (202);

two mounting boxes (302) are installed to the roof symmetry of jacket case (300) inner chamber, still install a plurality of blast pipe (301) on jacket case (300) roof for supplementary exhaust mist, and two install centrifugal fan (303) towards opposite direction air-out in mounting box (302), and two mounting box (302) one end that carry on the back mutually are connected with the extension trachea (304) of heat extraction and drainage.

2. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: two air bypass pipes (101) extending into the inner chamber (102) are symmetrically arranged on the bottom wall of the outer conveying pipe (100), four inclined conveying pipes (104) penetrate through the sealing partition plate (103) and extend into the inner chamber (102), and the four inclined conveying pipes (104) are welded and fixed with the sealing partition plate (103).

3. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: the bottom wall of the inner transmission pipe (200) is provided with a gas main pipe (201) extending into the inner two chambers (202).

4. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: one end of the inner extending seat (208) is welded on the inner wall of the bearing beam (206), and the other end thereof passes through the inner conveying pipe (200) and extends into the inner two chambers (202).

5. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: side slide ways (2001) surrounding the inner walls of the two inner chambers (202) are formed in the two inner chambers, side pulleys (2031) running horizontally are symmetrically installed at two ends of the platform cover (203), and the two side pulleys (2031) are respectively abutted to side walls at two sides of the side slide ways (2001).

6. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: the two extension air pipes (304) respectively extend downwards along the side walls of the two sides of the inner cavity of the outer casing box (300) and are welded with the inner wall of the outer casing box (300), and the tail ends of the two extension air pipes (304) are bent to the outer wall of the outer conveying pipe (100) and are welded and fixed with the outer conveying pipe (100).

7. The novel anti-backfire gas mixer for the gas generator set according to claim 6, is characterized in that: the openings of the tail ends of the two extension air pipes (304) are vertically upward.

8. The novel anti-backfire gas mixer for the gas generator set according to claim 1, is characterized in that: the bottom walls of the two mounting boxes (302) are welded with convex lower ring plates (305), a layer of asbestos plate (3051) is adhered to the bottom walls of the lower ring plates (305), and the surfaces of the lower ring plates (305) are provided with a plurality of through holes penetrating through the asbestos plate (3051).