CN213954648U - Pressure type combustor flow velocity difference generating device - Google Patents

Abstract

The utility model relates to the technical field of pressure burners, in particular to a pressure burner flow velocity difference generating device, which comprises a main pipe, a branch pipe is arranged above the main pipe, the lower parts of the left side and the right side of the branch pipe are communicated with the upper parts of the left side and the right side of the main pipe, an airflow switch valve is arranged on the left side above the branch pipe and comprises a stud, a valve block, a valve seat and a first sealing ring, the stud is arranged above the valve block, the bottom of the stud is rotatably connected with the upper part of the valve block, the valve seat is arranged below the valve block, the first sealing ring is arranged between the valve block and the airflow switch valve, the first sealing ring is also arranged between the valve seat and the airflow switch valve, at present, most of pressure burners adopt flame spraying equipment to realize the control of the flame size of the burners in the aspect of controlling the combustion size, the cost is high and the energy consumption is very large, there is a need for a pressure burner that is energy-saving and environment-friendly and can also achieve flame size regulation.

Description

Pressure type combustor flow velocity difference generating device

Technical Field

The utility model relates to a pressure burner technical field specifically is a pressure type combustor flow velocity difference produces device.

Background

The burner is a general term for a device for ejecting fuel and air in a certain manner to perform mixed combustion. In its operating principle, a burner can be defined as a device that converts a substance into heat energy by a chemical reaction, i.e., combustion, i.e., air and fuel are mixed in a proper ratio by a premixing device to be sufficiently combusted.

At present, most of pressure type combustors adopt to adjust the flame projecting equipment in the aspect of the control burning size to realize the control to combustor flame size, and the cost is expensive and energy consumption is very big, needs an energy-concerving and environment-protective pressure combustor that can realize regulation and control flame size again urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure type combustor flow velocity difference produces device 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: a flow velocity difference generating device of a pressure type burner comprises a main pipe, a branch pipe is arranged above the main pipe, the lower parts of the left side and the right side of the branch pipe are communicated with the upper parts of the left side and the right side of the main pipe, an airflow switch valve is arranged on the left side above the branch pipe and comprises a stud and a valve block, disk seat and first sealing washer, the double-screw bolt sets up the top at the valve block, the bottom of double-screw bolt is rotated with the top of valve block and is connected, the below of valve block is provided with the disk seat, be provided with first sealing washer between valve block and the air current ooff valve, be provided with first sealing washer between disk seat and the air current ooff valve equally, branch pipe top middle part is provided with exhaust apparatus, exhaust apparatus includes the gas vent, air discharge fan and filter screen, the gas vent sets up in exhaust apparatus middle part below, the top of gas vent is provided with the filter screen, filter screen and gas vent top inner wall fixed connection, the filter screen below is provided with the air discharge fan, branch pipe top right side is provided with the check valve.

Preferably, the check valve includes the valve body, the venthole, a spring, the second sealing washer, support ring and bulb, the middle part of valve body is provided with the venthole, the valve body sets up the left side at the check valve, valve body and check valve sliding connection, the left side of valve body and the right-hand member fixed connection of spring, the left end and the check valve left side inner wall fixed connection of spring, the right-hand member of valve body and the left side fixed connection who supports the ring, support the right side fixedly connected with bulb of ring, support and be provided with the second sealing washer between ring left side and the check valve left side inner wall, the outside of second sealing washer and the inner wall fixed connection of check valve.

Preferably, the middle of the one-way valve is provided with a slide way, the right side of the valve body is connected with the slide way in a sliding mode, the radius of the inner side of the slide way is the same as that of the second sealing ring, and the radius of the inner side of the slide way is larger than that of the outer side of the abutting ring.

Preferably, the left side and the right side of the main pipe are both provided with a connecting device, the left side of the main pipe is fixedly connected with the outlet of the combustor, and the right side of the main pipe is fixedly connected with the combustion head.

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

1. the utility model discloses a flame size that adopts the velocity of flow of control combustion gas to control the combustor, a novel combustor flame controlling means through with the outside exhaust part of combustion gas, makes the combustion gas pressure in the pipeline reduce, makes its outside velocity of flow reduce to this reduces the size of combustor flame.

2. The check valve of exhaust apparatus right side installation prevents to be responsible for the combustion gas in through the latter half backward flow of branch pipe, causes the reduction of combustor combustion efficiency to can carry out the switch of branch pipe by the through-hole gas switch valve, when need not reduce combustion efficiency, can close the gaseous circulation of branch pipe, make combustion gas flow out through being responsible for completely.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the check valve of the present invention.

In the figure: 1. the air flow control valve comprises a main pipe, 2, a branch pipe, 3, an air flow switch valve, 31, a stud, 32, a valve block, 33, a valve seat, 34, a first sealing ring, 4, an exhaust device, 41, an exhaust port, 42, an exhaust fan, 43, a filter screen, 5, a one-way valve, 51, a valve body, 52, an air outlet, 53, a spring, 54, a second sealing ring, 55, a retaining ring, 56 and a ball head

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 to 2, the present invention provides a technical solution: a flow speed difference generating device of a pressure type burner comprises a main pipe 1, a branch pipe 2 is arranged above the main pipe 1, the lower parts of the left side and the right side of the branch pipe 2 are communicated with the upper parts of the left side and the right side of the main pipe 1, an airflow switch valve 3 is arranged on the left side above the branch pipe 2, the airflow switch valve 3 comprises a stud 31, a valve block 32, a valve seat 33 and a first sealing ring 34, the stud 31 is arranged above the valve block 32, the bottom of the stud 31 is rotatably connected with the upper part of the valve block 32, the valve seat 33 is arranged below the valve block 32, the first sealing ring 34 is arranged between the valve block 32 and the airflow switch valve 3, the first sealing ring 34 is also arranged between the valve seat 33 and the airflow switch valve 3, an exhaust device 4 is arranged in the middle part above the branch pipe 2, the exhaust device 4 comprises an exhaust port 41, an exhaust fan 42 and a filter screen 43, the exhaust port 41 is arranged below the middle part of the exhaust device 4, and the filter screen 43 is arranged on the top of the exhaust port 41, the filter screen 43 is fixedly connected with the inner wall of the top of the exhaust port 41, the exhaust fan 42 is arranged below the filter screen 43, and the check valve 5 is arranged on the right side above the branch pipe 2.

The check valve 5 comprises a valve body 51, an air outlet 52, a spring 53, a second sealing ring 54, a resisting ring 55 and a ball head 56, the air outlet 52 is arranged in the middle of the valve body 51, the valve body 51 is arranged on the left side of the check valve 5, the valve body 51 is connected with the check valve 5 in a sliding mode, the left side of the valve body 51 is fixedly connected with the right end of the spring 53, the left end of the spring 53 is fixedly connected with the left inner wall of the check valve 5, the right end of the valve body 51 is fixedly connected with the left side of the resisting ring 55, the ball head 56 is fixedly connected with the right side of the resisting ring 55, the second sealing ring 54 is arranged between the left side of the resisting ring 55 and the left inner wall of the check valve.

The middle of the check valve 5 is provided with a slide way, the right side of the valve body 51 is in sliding connection with the slide way, the radius of the inner side of the slide way is the same as that of the second sealing ring 54, the radius of the inner side of the slide way is larger than that of the outer side of the abutting ring 55, combustion gas on the left side can conveniently flow rightwards, and meanwhile gas on the right side can be prevented from flowing leftwards.

The left side and the right side of the main pipe 1 are both provided with a connecting device, the left side of the main pipe 1 is fixedly connected with an outlet of the combustor, and the right side of the main pipe 1 is fixedly connected with the combustion head.

The working principle is as follows: the combustion gas enters the right side of the main pipe 1 through the burner, when the fire power of the burner is not required to be reduced, the gas switch valve 3 is in a closed state, the combustion gas completely flows from the main pipe 1 to the right side and enters the combustion head to be ignited, the fire power of the burner is the maximum at the moment, when the fire power of the burner is required to be reduced, the stud 31 is rotated to enable the stud 31 to move upwards, the valve block 32 is driven to move upwards, the valve block 32 and the valve seat 33 are enabled to separate upwards and downwards, namely, the combustion gas can flow into the branch pipe 2 through the gas switch valve 3, a first sealing ring 34 in the gas switch valve 3 enables a gap between the valve block 32 and the valve seat 33 after being closed and the gas control valve 3 to be free of gaps, the combustion gas in the branch pipe 2 is prevented from flowing into the branch pipe 2 through the gaps after the gas switch valve 3 is closed, the combustion efficiency of the burner is reduced, the combustion gas in the branch pipe 2 flows into the exhaust device 4 after passing through the gas switch valve 3, because the combustion gas is natural gas, the main component of the combustion gas is methane, the density of the combustion gas is less than that of air, the exhaust port 41 with a downward opening does not flow out of the exhaust device 4 to the combustion gas under normal conditions, the exhaust fan 42 is needed to exhaust the combustion gas in the exhaust device 4, the amount of the combustion gas exhausted outwards is regulated and controlled by adjusting the rotation speed of the exhaust fan 42, the firepower of the burner is controlled, the main purpose is to prevent external air from entering the exhaust device 4 to cause the reduction of the fuel of the burner, the filter screen 43 prevents external impurities from entering and mixing with the combustion gas to cause insufficient combustion, the check valve 5 is arranged on the right side of the exhaust device 4 to prevent the combustion gas in the rear half section of the main pipe 1 from flowing back into the branch pipe 2 to cause the reduction of the combustion efficiency, the valve body 51 is pulled leftwards by the spring 53 to cause the abutting ring 55 to be tightly attached to the second sealing ring 54, the air on the right side cannot flow leftwards, the air on the left side pushes the valve body 51 rightwards, the valve body 51 moves rightwards, namely the abutting ring 55 is separated from the second sealing ring 54, the combustion gas flows out through the air outlet 52, and the backflow of the combustion gas after the gas control valve 3 is closed is prevented.

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 (4)

1. A pressure type combustor flow velocity difference generating device comprises a main pipe (1), and is characterized in that: a branch pipe (2) is arranged above a main pipe (1), the lower portions of the left side and the right side of the branch pipe (2) are communicated with the upper portions of the left side and the right side of the main pipe (1), an airflow switch valve (3) is arranged on the left side above the branch pipe (2), the airflow switch valve (3) comprises a stud (31), a valve block (32), a valve seat (33) and a first sealing ring (34), the stud (31) is arranged above the valve block (32), the bottom of the stud (31) is rotatably connected with the upper portion of the valve block (32), the valve seat (33) is arranged below the valve block (32), the first sealing ring (34) is arranged between the valve block (32) and the airflow switch valve (3), the first sealing ring (34) is also arranged between the valve seat (33) and the airflow switch valve (3), an exhaust device (4) is arranged in the middle portion above the branch pipe (2), the exhaust device (4) comprises an exhaust port (41), an exhaust fan (42) and a filter screen (43), exhaust port (41) set up in exhaust apparatus (4) middle part below, and the top of exhaust port (41) is provided with filter screen (43), and filter screen (43) and exhaust port (41) top inner wall fixed connection, filter screen (43) below are provided with air discharge fan (42), and branch pipe (2) top right side is provided with check valve (5).

2. A pressure burner flow velocity differential generating apparatus as claimed in claim 1, wherein: check valve (5) include valve body (51), venthole (52), spring (53), second sealing washer (54), support ring (55) and bulb (56), the middle part of valve body (51) is provided with venthole (52), valve body (51) set up the left side at check valve (5), valve body (51) and check valve (5) sliding connection, the left side of valve body (51) and the right-hand member fixed connection of spring (53), the left end and the left side inner wall fixed connection of check valve (5) of spring (53), the right-hand member and the left side fixed connection who supports ring (55) of valve body (51), the right side fixedly connected with bulb (56) of supporting ring (55), be provided with second sealing washer (54) between supporting ring (55) left side and check valve (5) left side inner wall, the outside and the inner wall fixed connection of check valve (5) of second sealing washer (54).

3. A pressure burner flow velocity differential generating apparatus as claimed in claim 2, wherein: the middle of the check valve (5) is provided with a slide way, the right side of the valve body (51) is connected with the slide way in a sliding mode, the radius of the inner side of the slide way is the same as that of the second sealing ring (54), and the radius of the inner side of the slide way is larger than that of the outer side of the abutting ring (55).

4. A pressure burner flow velocity differential generating apparatus as claimed in claim 1, wherein: the left side and the right side of the main pipe (1) are both provided with connecting devices, the left side of the main pipe (1) is fixedly connected with an outlet of the combustor, and the right side of the main pipe (1) is fixedly connected with the combustion head.

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