Heavy oil pulse valve type burner

By designing a heavy oil pulse valve burner, the oil storage tank, atomization cavity and electromagnetic pulse valve are used to generate cavitation to atomize the heavy oil, which solves the problems of heavy oil combustion delay and nozzle clogging, and achieves efficient combustion and reduces pollution.

CN223399762UActive Publication Date: 2025-09-30GUIYANG ZHENXING AL-MG SCIENCE & TECHNOLOGY IND DEVELOPMENT CO LTD +1
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Patent Information

Application Number
CN202422726367.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-09-30
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

During the heavy oil combustion process, there are problems such as delayed and incomplete combustion, and nozzle coking and blockage, which lead to high energy consumption and pollutant generation, affecting production stability.

Method used

A heavy oil pulse valve burner is designed, which includes an oil storage tank, an atomizing cavity and an electromagnetic pulse valve. High-pressure pulses are used to generate cavitation to atomize the heavy oil, and combined with an atomizer, the atomized spray of the heavy oil is achieved.

Benefits of technology

It improves the combustion efficiency of heavy oil, reduces energy consumption, reduces carbon black pollutants, and extends the service life of the furnace.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy oil pulse valve type burner which comprises a shell, the shell is provided with an oil inlet channel, an oil storage tank and an atomization cavity which are sequentially arranged from top to bottom, the inner end of the oil inlet channel is connected with the oil storage tank, and a first channel, a valve rod channel and a second channel which are communicated are sequentially arranged between the oil storage tank and the atomization cavity. An atomizing agent hole is formed in the atomizing cavity; the electromagnetic pulse valve is installed on the shell, and a valve rod of the electromagnetic pulse valve stretches out and draws back in the valve rod channel, so that the first channel and the second channel are switched between a communicating state and a separating state; and the nozzle is mounted on the shell, and the nozzle is communicated with the atomization cavity. The heavy oil burner solves the problems that heavy oil in an existing heavy oil burner cannot be atomized, the heavy oil is sprayed in a linear state, and the burning effect is poor.
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Description

Technical Field

[0001] The utility model relates to a heavy oil pulse valve type burner, belonging to the technical field of heavy oil burners. Background Art

[0002] Carbon roasters are furnaces used for sintering and calcining carbon materials. Some furnaces use heavy oil burners, a high-viscosity, high-density fuel. Common problems with heavy oil burners include: delayed combustion caused by the liquid oil ejection, incomplete combustion resulting in the generation of large amounts of carbon black smoke; and coking and carbon deposition near the nozzle at high temperatures, which can clog the solenoid valve nozzle. This not only increases energy consumption but also easily produces pollutants such as carbon black, affecting production stability. Therefore, improving the combustion quality of heavy oil has always been a challenge in combustion technology. Utility Model Content

[0003] Based on the above, the utility model provides a heavy oil pulse valve burner to overcome the deficiencies of the prior art.

[0004] The technical solution of the utility model is: a heavy oil pulse valve burner, comprising:

[0005] The housing has an oil inlet channel, an oil storage tank, and an atomizing cavity arranged in sequence from top to bottom, the inner end of the oil inlet channel is connected to the oil storage tank, a first channel, a valve stem channel, and a second channel are connected in sequence between the oil storage tank and the atomizing cavity, and an atomizing agent hole is provided on the atomizing cavity;

[0006] an electromagnetic pulse valve mounted on the housing, wherein a valve stem of the electromagnetic pulse valve telescopes within the valve stem channel, so that the first channel and the second channel are switched between a connected state and a separated state;

[0007] A nozzle is installed on the shell and is connected to the atomization cavity.

[0008] In one example, the valve stem channel is horizontally arranged on the shell; the first channel includes a first vertical portion, a first oblique portion and a first transverse portion connected in sequence, the upper end of the first vertical portion is connected to the bottom of the oil storage tank, and the first transverse portion is connected to the end of the valve stem channel; the second channel includes a second vertical portion, a second oblique portion and a third vertical portion connected in sequence, the upper end of the second vertical portion is connected to the bottom of the valve stem channel, and the lower end of the third vertical portion is connected to the atomization chamber; in the separated state, the valve stem extends into the valve stem channel to separate the first transverse portion and the second vertical portion; in the connected state, the valve stem retracts and leaves the valve stem channel, so that the first transverse portion and the second vertical portion are connected.

[0009] In one example, the diameter of the first transverse portion is smaller than the diameters of the first vertical portion and the first oblique portion; the diameter of the second vertical portion is smaller than the diameters of the second oblique portion and the third vertical portion; and the diameter of the first transverse portion is the same as the diameter of the second vertical portion.

[0010] In one example, the first oblique portion and the second oblique portion are arranged in opposite directions, and the oil inlet channel coincides with the axis of the atomization chamber.

[0011] In one example, a mounting groove is provided on the shell; the outer shell of the electromagnetic pulse valve is installed on the shell, the electromagnetic coil of the electromagnetic pulse valve is installed in the mounting groove, and a sealing ring is provided at the end of the mounting groove close to the valve stem channel.

[0012] In one example, the aperture of the atomization cavity is larger than the aperture of the third vertical portion.

[0013] In one example, the atomizer holes are symmetrically arranged on both sides of the atomization cavity.

[0014] In one example, the nozzle has an inverted tapered pintle orifice.

[0015] The beneficial effects of the present invention are as follows: by modifying the existing heavy oil burner, adding an oil storage tank, a first channel, a valve stem channel, a second channel, an atomizing cavity and an electromagnetic pulse valve, the high-pressure heavy oil is subjected to local cavitation by the high-pressure pulse when passing through the valve stem channel from the oil storage tank, which accelerates the splitting of the heavy oil, and is mixed with the atomizing agent and atomized after entering the atomizing cavity, and finally the heavy oil is sprayed out in an atomized state, which solves the problem that the heavy oil in the current heavy oil burner cannot be atomized and the heavy oil is sprayed in a linear state, resulting in poor combustion effect. The atomized heavy oil makes the combustion more complete, which not only reduces the energy consumption of heavy oil, but also can greatly reduce the accumulation of carbon black pollutants at the bottom of the furnace, thereby extending the service life of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the heavy oil pulse valve burner;

[0017] Figure 2 This is a side view of a heavy oil pulse valve burner;

[0018] Figure 3 This is a longitudinal cross-sectional view of a heavy oil pulse valve burner;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of the middle oil storage tank, the first channel, the valve stem channel, and the second channel;

[0020] Description of reference numerals:

[0021] 10 housing;

[0022] 11 oil inlet, 12 oil inlet channel, 13 oil storage tank, 14 first channel, 15 valve stem channel, 16 second channel, 17 atomizing chamber, 18 atomizing agent hole, 19 mounting groove;

[0023] 141 first vertical portion, 142 first oblique portion, 143 first transverse portion;

[0024] 161 second vertical portion, 162 second oblique portion, 163 third vertical portion;

[0025] 20 electromagnetic pulse valve;

[0026] 21 electromagnetic coil, 22 sealing ring, 23 valve stem;

[0027] 30 nozzles;

[0028] 31 Inverted tapered pinhole. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] See also Figures 1 to 4 In this embodiment, a heavy oil pulse valve type burner includes a shell 10, an electromagnetic pulse valve 20 and a nozzle 30.

[0031] The housing 10 has an oil inlet channel 12, an oil storage tank 13 and an atomizing chamber 17, which are arranged in sequence from top to bottom. The outer end of the oil inlet channel 12 is provided with an oil inlet port 11, and the inner end of the oil inlet channel 12 is connected to the oil storage tank 13. A first channel 14, a valve stem channel 15 and a second channel 16 are provided in sequence between the oil storage tank 13 and the atomizing chamber 17. An atomizer hole 18 is provided on the atomizing chamber 17, through which the atomizer can be introduced into the atomizing chamber 17. An electromagnetic pulse valve 20 is mounted on the housing 10. The valve stem 23 of the electromagnetic pulse valve 20 telescopes in the valve stem channel 15, so that the first channel 14 and the second channel 16 are switched between a connected state and a separated state. In the connected state, the heavy oil in the oil storage tank 13 enters the second channel 16 through the first channel 14 and the valve stem channel 15, and then enters the atomizing chamber 17. The nozzle 30 is mounted on the housing 10 and is in communication with the atomizing cavity 17 so as to spray the heavy oil in the atomizing cavity 17 for combustion.

[0032] The working principle of the above-mentioned heavy oil pulse valve burner is as follows:

[0033] During fuel combustion, heavy oil at a temperature of 80-100°C and a pressure of 3-4 MPa is first introduced into the oil storage tank 13 via the oil inlet channel 12. Then, the electromagnetic pulse valve 20, controlled by an external pulse controller, operates at a pulse frequency of 200-400 times per minute, causing the heavy oil in the oil storage tank 13 to be sprayed into the atomizing chamber 17, generating local cavitation. Subsequently, an atomizer (compressed air at a pressure of 1000-5000 Pa) is controlled to enter the atomizing chamber 17 through the atomizer hole 18, where it mixes with the heavy oil and atomizes it in the atomizing chamber 17. Finally, the atomized heavy oil is ejected from the nozzle 30 for combustion.

[0034] By inputting high-pressure heavy oil into the oil inlet channel 12, the heavy oil is subjected to local cavitation by the high-pressure pulse when passing through the valve stem channel 15, which accelerates the splitting of the heavy oil. After entering the atomizing chamber 17, the heavy oil is mixed with the atomizing agent and atomized, and finally the heavy oil is sprayed out in an atomized state, with good combustion effect and more complete combustion, which reduces the energy consumption of heavy oil, greatly reduces the accumulation of carbon black pollutants at the bottom of the furnace, and extends the service life of the furnace.

[0035] In order to improve the cavitation effect, the valve stem channel 15 is horizontally opened on the housing 10; the first channel 14 includes a first vertical portion 141, a first oblique portion 142 and a first transverse portion 143 connected in sequence, the upper end of the first vertical portion 141 is connected to the bottom of the oil storage tank 13, and the first transverse portion 143 is connected to the end of the valve stem channel 15; the second channel 16 includes a second vertical portion 161, a second oblique portion 162 and a third vertical portion 163 connected in sequence, the upper end of the second vertical portion 161 is connected to the bottom of the valve stem channel 15, and the lower end of the third vertical portion 163 is connected to the atomization chamber 17; in the separated state, the valve stem 23 extends into the valve stem channel 15 to block the first transverse portion 143 and the second vertical portion 161, separating the first transverse portion 143 and the second vertical portion 161; in the connected state, the valve stem 23 retracts and leaves the valve stem channel 15, so that the first transverse portion 143 and the second vertical portion 161 are connected through the valve stem channel 15.

[0036] The heavy oil in the oil storage tank 13 enters the valve stem channel 15 in a horizontal state through the first vertical portion 141, the first oblique portion 142 and the first transverse portion 143, then enters the second vertical portion 161 in a vertical state after passing through the valve stem channel 15, and then enters the atomization chamber 17 after passing through the second oblique portion 162 and the third vertical portion 163. As a result, the valve stem 23 of the electromagnetic pulse valve 20 can quickly open and close the valve stem channel 15 in a transverse motion, ensuring that the pressure of the heavy oil drops below the vapor pressure of the heavy oil after entering the second vertical portion 161, so that the gas in the heavy oil is released to form bubbles, which is convenient for subsequent atomization.

[0037] In order to further improve the cavitation effect, the diameter of the first horizontal portion 143 is smaller than the diameters of the first vertical portion 141 and the first oblique portion 142; the diameter of the second vertical portion 161 is smaller than the diameters of the second oblique portion 162 and the third vertical portion 163; the diameter of the first horizontal portion 143 is the same as the diameter of the second vertical portion 161, and the aperture of the atomization chamber 17 is larger than the aperture of the third vertical portion 163.

[0038] The first transverse portion 143 has a smaller diameter than the first vertical portion 141 and the first oblique portion 142, thereby ensuring the supply of heavy oil within the oil storage tank 13. After the heavy oil enters the second vertical portion 161, it passes through the second oblique portion 162 and the third vertical portion 163 with larger diameters, thereby extending the time for gas release from the heavy oil and ensuring sufficient formation of bubbles. Finally, the heavy oil enters the atomization cavity 17 with a larger aperture to enhance the mixing effect with the atomizer.

[0039] For the convenience of molding, the first oblique portion 142 and the second oblique portion 162 are arranged to have opposite inclination directions, and the axis of the oil inlet channel 12 coincides with the axis of the atomization cavity 17 .

[0040] For easy operation, a mounting groove 19 is provided on the housing 10, the shell of the electromagnetic pulse valve 20 is installed on the housing 10, the electromagnetic coil 21 of the electromagnetic pulse valve 20 is installed in the mounting groove 19, and a sealing ring 22 is provided at the end of the mounting groove 19 close to the valve stem channel 15.

[0041] In order to improve the atomization effect, the atomizer holes 18 are symmetrically opened on both sides of the atomization cavity 17 . During atomization, the atomizer holes 18 are connected to the pipeline to guide the atomizer into the atomization cavity 17 .

[0042] In order to improve the combustion effect, the nozzle 30 has an inverted cone pinhole 31, so that the heavy oil particles are more uniform and continuous, and the contact surface between the heavy oil particles and the air is larger when entering the furnace, ensuring more complete combustion.

[0043] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A heavy oil pulse valve burner, characterized in that: include: The housing (10) comprises an oil inlet passage (12), an oil storage tank (13) and an atomizing chamber (17) arranged in sequence from top to bottom, wherein the inner end of the oil inlet passage (12) is connected to the oil storage tank (13), a first passage (14), a valve stem passage (15) and a second passage (16) are arranged in sequence between the oil storage tank (13) and the atomizing chamber (17), and an atomizing agent hole (18) is provided on the atomizing chamber (17); An electromagnetic pulse valve (20) is mounted on the housing (10), wherein a valve stem (23) of the electromagnetic pulse valve (20) telescopes within the valve stem channel (15), so that the first channel (14) and the second channel (16) are switched between a connected state and a separated state; A nozzle (30) is mounted on the housing (10), and the nozzle (30) is in communication with the atomization cavity (17).

2. The heavy oil pulse valve burner according to claim 1, characterized in that: The valve stem channel (15) is transversely arranged on the housing (10); The first channel (14) comprises a first vertical portion (141), a first oblique portion (142), and a first transverse portion (143) connected in sequence, the upper end of the first vertical portion (141) being connected to the bottom of the oil storage tank (13), and the first transverse portion (143) being connected to the end of the valve stem channel (15); The second channel (16) comprises a second vertical portion (161), a second oblique portion (162), and a third vertical portion (163) connected in sequence, the upper end of the second vertical portion (161) being connected to the bottom of the valve stem channel (15), and the lower end of the third vertical portion (163) being connected to the atomization chamber (17); In the separated state, the valve stem (23) extends into the valve stem channel (15) to separate the first transverse portion (143) and the second vertical portion (161); in the connected state, the valve stem (23) contracts and leaves the valve stem channel (15), so that the first transverse portion (143) and the second vertical portion (161) are connected.

3. The heavy oil pulse valve burner according to claim 2, characterized in that: The diameter of the first transverse portion (143) is smaller than the diameters of the first vertical portion (141) and the first oblique portion (142); The diameter of the second vertical portion (161) is smaller than the diameters of the second oblique portion (162) and the third vertical portion (163); The diameter of the first transverse portion (143) is the same as the diameter of the second vertical portion (161).

4. The heavy oil pulse valve burner according to claim 2, characterized in that: The inclination directions of the first oblique portion (142) and the second oblique portion (162) are arranged to be opposite to each other, and the axis of the oil inlet channel (12) coincides with the axis of the atomization cavity (17).

5. The heavy oil pulse valve burner according to claim 2, characterized in that: The housing (10) is provided with a mounting groove (19); The shell of the electromagnetic pulse valve (20) is installed on the housing (10), the electromagnetic coil (21) of the electromagnetic pulse valve (20) is installed in the installation groove (19), and a sealing ring (22) is provided at the end of the installation groove (19) close to the valve stem channel (15).

6. The heavy oil pulse valve burner according to claim 2, characterized in that: The aperture of the atomization cavity (17) is larger than the aperture of the third vertical portion (163).

7. The heavy oil pulse valve burner according to claim 1, characterized in that: The atomizer holes (18) are symmetrically arranged on both sides of the atomization cavity (17).

8. The heavy oil pulse valve burner according to claim 1, characterized in that: The nozzle (30) has an inverted cone-shaped pintle hole (31).