Vacuum injection waste gas burner for incinerator

Abstract

The utility model discloses a vacuum injection waste gas burner for an incinerator, relates to the field of waste gas incinerators, and aims to solve the problem that waste gas is pressurized by a fan and fed into the incinerator for treatment in the prior art. If gas components fluctuate and the tempering speed exceeds the conveying speed, gas explosion easily occurs in the pipeline. The flowing speed of waste gas entering the furnace is low, so that furnace mouth equipment is high in temperature, and scalding risk is caused. A collecting part is arranged on one side of the middle of the waste gas burner shell, a first connecting ring is fixedly connected to the end face of the side, away from the collecting part, of the waste gas burner shell, a steam conveying pipe is connected to one side of the first connecting ring, and an annular pressing plate is fixedly connected to the side, adjacent to the first connecting ring, of the steam conveying pipe. An annular fixing plate is fixedly connected to the position, on the end face of one side of the annular pressing plate, in the waste gas burner shell, a fluid director is arranged on the position, on one side of the annular fixing plate, in the waste gas burner shell, and a waste gas conveying pipe is fixedly connected to one side of the lower end of the waste gas burner shell.

Description

Technical Field

[0001] The utility model relates to the field of waste gas incinerators, in particular to a vacuum-injected waste gas burner used in incinerators. Background Art

[0002] Waste gas incinerators utilize the heat generated by the combustion of auxiliary fuel to raise the temperature of combustible and harmful gases to the reaction temperature, causing them to undergo an oxidative decomposition reaction, converting them into harmless substances (such as carbon dioxide and water vapor). They are suitable for treating waste gas from spray drying equipment and purifying harmful gases emitted by industries such as petrochemicals and pharmaceuticals. Waste gas incinerators not only efficiently treat waste gas but also recover heat through heat exchangers, enabling energy reuse. Their ease of operation and adaptability make them suitable for treating waste gas containing a variety of harmful substances, making them a widely used environmentally friendly device in industrial production.

[0003] Exhaust gas is currently pressurized by a fan and conveyed to an incinerator for incineration. The exhaust gas conveying speed cannot be adjusted. When the gas composition is unstable, the gas backfires faster than the exhaust gas conveying speed, causing gas explosions within the pipeline. When the exhaust gas enters the incinerator, the flow rate is low, causing high temperatures on the equipment near the exhaust gas burner, potentially scalding operators. Therefore, the market urgently needs to develop a vacuum-injected exhaust gas burner for incinerators to help solve this problem. Utility Model Content

[0004] The present utility model aims to provide a vacuum-injected exhaust gas burner for use in incinerators, addressing the aforementioned problem of using a fan to pressurize exhaust gas for incineration. This problem is addressed by the aforementioned background art, which addresses the issue of fluctuating gas composition and tempering speed exceeding the delivery speed, leading to gas explosions within the pipe. Furthermore, the low exhaust gas inlet velocity leads to high temperatures in the furnace mouth equipment, posing a risk of burns.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a vacuum-injected waste gas burner used in an incinerator, comprising a waste gas burner shell, a convergence portion being provided on one side of the middle portion of the waste gas burner shell, a first connecting ring being fixedly connected to an end face of the waste gas burner shell away from the convergence portion, a steam delivery pipe being connected to one side of the first connecting ring, an annular pressure plate being fixedly connected to the side of the steam delivery pipe adjacent to the first connecting ring, an annular fixing plate being fixedly connected to the interior of the waste gas burner shell and on an end face of one side of the annular pressure plate, a flow deflector being provided inside the waste gas burner shell and on one side of the annular fixing plate, and a waste gas delivery pipe being fixedly connected to one side of the lower end of the waste gas burner shell.

[0006] Preferably, the annular pressure plate on the steam delivery pipe and the first connecting ring on the exhaust gas burner housing are fixedly connected by a plurality of bolts.

[0007] Preferably, a sealing ring is provided between the annular pressure plate and the first connecting ring.

[0008] Preferably, a connecting pipe is fixedly connected to one side of the annular fixing plate, and an internal threaded portion is provided on the inner wall of the connecting pipe.

[0009] Preferably, one side of the outer end surface of the deflector is fixedly connected with an external threaded portion.

[0010] Preferably, one end of the deflector is inserted into the interior of the connecting pipe and is fixed by threading the external thread portion and the internal thread portion, and one side of the deflector is communicated with the interior of the steam delivery pipe.

[0011] Preferably, the upper end of the exhaust gas delivery pipe is connected to the interior of the exhaust gas burner shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) In this utility model, steam not only serves as a power source to drive the exhaust gas into the incinerator, but more importantly, it plays a vital role in the thorough mixing of steam and exhaust gas. By precisely adjusting the steam input, the exhaust gas can be effectively diluted during the mixing process, thereby preventing the exhaust gas concentration from reaching its explosion limit and greatly improving the safety of the entire system.

[0014] (2) In this utility model, after steam and exhaust gas are mixed in the exhaust gas burner shell, the high-speed flow of steam significantly increases the flow rate of the exhaust gas. This increase in flow rate not only helps the exhaust gas enter the incinerator more efficiently for combustion, but more importantly, it greatly reduces the risk of gas explosion caused by accumulation of exhaust gas in the pipeline due to excessively low flow rate. Therefore, the mixing of steam and exhaust gas not only improves the treatment efficiency, but also further enhances the safety of the system.

[0015] (3) In this utility model, the regulation of the exhaust gas flow rate is achieved by precisely controlling the steam flow rate. This control method makes the entire system extremely flexible and adjustable. The steam input can be adjusted at any time according to the actual exhaust gas conditions and the treatment requirements of the incinerator, thereby achieving precise control of the exhaust gas flow rate. This overall controllable and adjustable design not only improves the efficiency of exhaust gas treatment, but also ensures the stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a vacuum-injected exhaust gas burner used in an incinerator of the present invention;

[0017] Figure 2 This is the main sectional view of the utility model;

[0018] Figure 3It is a side sectional view of the utility model;

[0019] Figure 4 It is an enlarged view of the detail A of the present utility model.

[0020] In the figure: 1. exhaust gas burner shell; 101. convergence part; 102. first connecting ring; 103. sealing ring; 2. exhaust gas delivery pipe; 3. steam delivery pipe; 301. annular pressure plate; 302. bolt; 303. annular fixing plate; 304. connecting pipe; 305. internal threaded part; 4. deflector; 401. external threaded part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4 , the utility model provides an embodiment: a vacuum-injected waste gas burner used in an incinerator, comprising a waste gas burner shell 1, a convergence portion 101 is provided on one side of the middle portion of the waste gas burner shell 1, a venturi structure is formed inside the waste gas burner shell 1 through the convergence portion 101, a first connecting ring 102 is fixedly connected to the end face of the waste gas burner shell 1 away from the convergence portion 101, a steam delivery pipe 3 is connected to one side of the first connecting ring 102, and a circular pressing plate 301 is fixedly connected to the side of the steam delivery pipe 3 adjacent to the first connecting ring 102, and the steam delivery pipe 3 is fixedly connected to the one side of the first connecting ring 102. The annular pressure plate 301 on the delivery pipe 3 and the first connecting ring 102 on the exhaust gas burner shell 1 are fixedly connected by multiple bolts 302. A sealing ring 103 is provided between the annular pressure plate 301 and the first connecting ring 102 to fix the exhaust gas burner shell 1 and the steam delivery pipe 3. At the same time, the gap between the annular pressure plate 301 and the first connecting ring 102 is sealed by the sealing ring 103. At the same time, the exhaust gas burner shell 1 and the steam delivery pipe 3 can be separated by removing the bolts 302, which facilitates the disassembly and maintenance of the exhaust gas burner shell 1.

[0023] See also Figure 2 and Figure 4, an annular fixing plate 303 is fixedly connected to the end face of the annular pressure plate 301 on one side of the exhaust gas burner shell 1, a deflector 4 is provided on the inside of the exhaust gas burner shell 1 and on one side of the annular fixing plate 303, a connecting pipe 304 is fixedly connected to one side of the annular fixing plate 303, an internal thread portion 305 is provided on the inner wall of the connecting pipe 304, an external thread portion 401 is fixedly connected to one side of the outer end face of the deflector 4, one end of the deflector 4 is inserted into the interior of the connecting pipe 304 and is threadedly connected to the internal thread portion 305 through the external thread portion 401, and one side of the deflector 4 is connected to the inside of the steam delivery pipe 3 When the exhaust gas burner shell 1 and the steam delivery pipe 3 are connected, the deflector 4 is rotated to separate one end of the deflector 4 from the connecting pipe 304, and the deflector 4 can be repaired and replaced. The side of the convergence part 101 of the exhaust gas burner shell 1 is fixedly connected to the incinerator, and the end of the steam delivery pipe 3 away from the exhaust gas burner shell 1 is connected to the external low-temperature steam delivery device. The low-temperature steam is delivered to the deflector 4 through the steam delivery pipe 3 and the side of the convergence part 101 inside the exhaust gas burner shell 1, and is delivered to the inside of the incinerator after passing through the convergence part 101.

[0024] See also Figure 2 and Figure 3 A waste gas delivery pipe 2 is fixedly connected to one side of the lower end of the waste gas burner shell 1, and the upper end of the waste gas delivery pipe 2 is connected to the interior of the waste gas burner shell 1. Through the Venturi structure inside the waste gas burner shell 1, when the low-temperature steam passes through, the interior of the waste gas burner shell 1 and the outside of the deflector 4 are vacuumed, and then the waste gas is drawn into the interior of the waste gas burner shell 1 through the vacuum effect and mixed with the low-temperature steam, and then transported into the incinerator for incineration.

[0025] Working principle: When in use, first fix one side of the convergence part 101 of the exhaust gas burner shell 1 to the incinerator, and connect the steam delivery pipe 3 to the external low-temperature steam delivery device. When the low-temperature steam enters the deflector 4 through the steam delivery pipe 3 and flows through the convergence part 101 inside the exhaust gas burner shell 1, the convergence part 101 is a key part of the Venturi structure. By gradually reducing the diameter of the pipe, the fluid generates a local low pressure when passing through, that is, a vacuum effect. This vacuum effect attracts and draws in the exhaust gas to be treated through the exhaust gas delivery pipe 2. After the exhaust gas and low-temperature steam are mixed inside the exhaust gas burner shell 1, the flow rate of the mixed gas increases due to the driving effect of the steam, which effectively avoids the risk of backfire and gas explosion caused by the instability of the exhaust gas components. Subsequently, this mixed gas is sent into the incinerator at high speed for high-temperature incineration treatment and converted into harmless emissions. During the entire process, the sealing structure between the exhaust gas burner shell 1 and the steam delivery pipe 3 ensures the full sealing of the system, reduces the risk of exhaust gas and air leakage, and at the same time, the mixing of steam also effectively prevents the exhaust gas from entering the explosion limit range, thereby improving the safety of the overall operation. At the same time, the exhaust gas flow rate can be controlled by controlling the flow rate of the steam, and the overall system is controllable and adjustable.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A vacuum-injected waste gas burner for an incinerator, comprising a waste gas burner housing (1), characterized in that: A convergence portion (101) is provided on one side of the middle portion of the exhaust gas burner shell (1); a first connecting ring (102) is fixedly connected to the end face of the exhaust gas burner shell (1) away from the convergence portion (101); a steam delivery pipe (3) is connected to one side of the first connecting ring (102); an annular pressure plate (301) is fixedly connected to the side of the steam delivery pipe (3) adjacent to the first connecting ring (102); an annular fixing plate (303) is fixedly connected inside the exhaust gas burner shell (1) and on one end face of the annular pressure plate (301); a flow guide (4) is provided inside the exhaust gas burner shell (1) and on one side of the annular fixing plate (303); and an exhaust gas delivery pipe (2) is fixedly connected to one side of the lower end of the exhaust gas burner shell (1).

2. The vacuum-injected exhaust gas burner for an incinerator according to claim 1, characterized in that: The annular pressure plate (301) on the steam delivery pipe (3) and the first connecting ring (102) on the exhaust gas burner housing (1) are fixedly connected via a plurality of bolts (302).

3. The vacuum-injected exhaust gas burner for an incinerator according to claim 1, characterized in that: A sealing ring (103) is provided between the annular pressure plate (301) and the first connecting ring (102).

4. The vacuum-injected exhaust gas burner for an incinerator according to claim 1, characterized in that: A connecting pipe (304) is fixedly connected to one side of the annular fixing plate (303), and an internal threaded portion (305) is provided on the inner wall of the connecting pipe (304).

5. The vacuum-injected exhaust gas burner for an incinerator according to claim 4, characterized in that: An external threaded portion (401) is fixedly connected to one side of the outer end surface of the deflector (4).

6. The vacuum-injected exhaust gas burner for an incinerator according to claim 5, characterized in that: One end of the deflector (4) is inserted into the interior of the connecting pipe (304) and is threadedly connected and fixed with the internal threaded portion (305) through the external threaded portion (401), and one side of the deflector (4) is in communication with the interior of the steam delivery pipe (3).

7. The vacuum-injected exhaust gas burner for an incinerator according to claim 1, characterized in that: The upper end of the exhaust gas delivery pipe (2) is in communication with the interior of the exhaust gas burner housing (1).

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