CN201007506Y - Universal swirling fan flame stepless adjustment energy-saving burner and stove - Google Patents

Abstract

The universal swirling fan flame stepless adjustment energy-saving burner and stove is an environmentally friendly energy-saving combustion structure with stepless gas adjustment, overload pressurization, closed combustion, and super furnace temperature. It is composed of a cyclone, a turbocharger, an expansion shrinkage cover, an expansion fire channel cover, and a cooktop. A needle valve is connected in the shell, and the valve body can be rotated or adjusted in the shell. Gas pipe, one end is connected with the ejector, the middle part of the ejector is made with a mixing pipe and a diffuser pipe, the middle part of the diffuser pipe is connected with the supercharger, the outlet is made with a nozzle, the outlet of the nozzle is connected with a cyclone, and the cyclone is made with a Expansion converging cover and expansion flue cover, the center is made with volute shaft. Through the energy of the gas itself, mixed and purified by the ejector, it enters the cyclone to generate a high-speed swirling airflow, and forms a strong fan-shaped flame on the surface of the expansion flue cover, which is closed and burned with the cooker. The firepower is fierce, the furnace temperature is high, and the heating is fast. By adjusting the gas flow of the nozzle hole, different heat loads can be achieved, so as to achieve multi-purpose, high-efficiency and energy-saving effects, and are widely used in catering and civilian gas appliances.

Description

Universal swirling fan flame stepless adjustment energy-saving burner and stove

technical field

The utility model relates to a new type of full-suction swirling fan flame, closed combustion, super furnace temperature environment-friendly, high-efficiency and energy-saving combustion, which is used on civil and public catering gas appliances. The system, especially the general-purpose swirling fan flame stepless adjustment energy-saving burner and stove used on various gases with very different properties.

Background technique

Existing civil and catering gas appliances and utensils are generally the burners of the atmospheric combustion mode, which are mainly composed of nozzles, ejectors and heads. The nozzle flows out and enters the suction contraction tube. The gas sucks air once by its own energy, mixes the gas and air in the injection tube, and then flows out through the fire hole of the head for combustion. The shortcomings of this kind of burner are: (1) The burners are designed according to a certain gas composition. When the gas composition changes, its calorific value, gravity and combustion characteristics also change. The heat load of the burner, Combustion conditions such as primary air ratio, combustion stability, flame structure, and carbon monoxide content in flue gas will change. If the primary air is slightly improperly adjusted, incomplete combustion often occurs. (2) When the burner burns, only part of the air is premixed, not all the air required for combustion. Therefore, the heat intensity of the fire hole and the combustion temperature are limited, which often cannot meet the process requirements. When the heat load requirement is large, it is necessary to increase the fire. hole, increase the size of the head, the structure is bulky and heavy, and the consumables consume gas. (3) The head of the burner is generally made of cast iron. The fire cover is made of cast iron, cast copper or stamping parts. The combustion heat loss is large. After a period of use, the fire hole fire cover is oxidized or deformed. Changes occur, serious incomplete combustion occurs, which not only wastes gas but also pollutes the environment. People are paying attention to new energy-saving gas for this reason, and Chinese utility model, patent No. 03254617.3 provides a kind of cyclone flame energy-saving burner, mainly is made of combustion head, flame cover, gas pipe, and combustion head is processed into circle with copper pipe 4-5 oblique spray holes are respectively processed on the circumference of the copper pipe, and the gas inlet pipe is connected below. It is sprayed out, collides and mixes and burns on the inner circular wall of the flame cover to form a whirlwind flame. Compared with ordinary atmospheric burners, this kind of burner has stronger firepower, can improve the efficiency, and has a certain energy-saving effect, but the combustion noise is loud, and the holes are often blocked. , does not work properly and is not widely used yet.

To sum up the disadvantages of the existing burners, there are often incomplete combustion in practical applications, especially when the public burning appliance is used on a large fire, it is more serious, which not only pollutes the environment, is harmful to the human body, but also wastes a lot of gas Resources bring economic losses to users and society. For this reason, research on the generalization of burning appliances, focusing on environmental protection and energy saving, improving combustion structure, improving thermal efficiency, and saving energy are important issues that the whole society is concerned about.

Contents of the invention

The purpose of this utility model is to provide a combustion system with stepless gas adjustment function, super-load pressurization, and high combustion heat intensity, which can effectively improve cooking efficiency, save fuel, and can adjust heat load according to process requirements.

The purpose of this utility model is achieved by connecting or replacing a general-purpose swirl fan flame stepless adjustment energy-saving burner or stove on the gas system or the existing burner. The burner and the stove are mainly composed of nozzle housings , nozzle, needle valve, ejector, nozzle, cyclone, expansion type fire channel cover, stove, base, nozzle housing is connected with a needle valve, and the outer circle of the valve is processed with external threads, which can be Rotate or adjust on the internal thread of the shell, one end of the valve body is processed with a contraction angle, the other end is processed with an adjustment fork, the middle part of the shell is welded with a gas pipe connected to the gas valve, and the gas outlet end is connected with a nozzle. The inlet of the nozzle is processed with a contraction angle, the outer thread of the outer circle of the front end of the shell is connected or adjusted with the inner thread of the nozzle seat at the front end of the suction shrinkage tube of the ejector, and the inner circle of the middle section of the ejector is processed with a mixing tube and a diffuser tube , the outlet end of the mixing tube is extended to one-third of the total length of the inner taper of the diffuser tube, the middle part of the diffuser tube is processed with a screw hole and a through hole connected to the supercharger, and the outer wall of the supercharger shell is formed with a conical expansion port, The inner circle of the cone is equipped with a conical valve, and the center of the valve is connected with a push-pull rod; the push-pull rod can slide in the hole opposite to the center of the valve. For heat sink or water tank, the outer circle of the nozzle outlet is processed with external threads, which are connected with the internal thread of the tangential inlet of the cyclone. The center of the volute is formed with a swirl shaft, and the lower end of the shaft is connected with the center hole at the bottom of the volute as a whole. The lower end is connected with the fixed bolts integrally connected with the stove, the coaming and the base. The outlet of the volute is made with an expansion tapered cover. Connection, the outer circle of the upper part of the expanded fire channel cover is suspended and connected with the inner circle step of the lower part of the cooktop, and the middle part of the circumferential slope of the cooktop is respectively cast with conical protrusions.

The utility model can organically combine the change of gas with the combustion situation, and can be used on various gas to achieve flames with different heat loads and different heat intensity according to the technological requirements. Strong firepower, fast heating, low-load, small fire, smokeless, odorless, heat preservation, uniform temperature, so as to achieve the purpose of generalization of burning appliances, multi-purpose of one appliance, high efficiency and energy saving.

Below in conjunction with accompanying drawing for further explanation:

Fig. 1: is the B-B sectional view of Fig. 2 of the utility model front view.

Fig. 2: is the top view of Fig. 1 along A-A section of Fig. 1 .

Fig. 3: is the B-B sectional view of Fig. 4, which is a schematic diagram of the utility model used in civil burning appliances.

Fig. 4: is a top view of Fig. 3 along the A-A section of Fig. 3 .

specific implementation plan

Embodiment: With reference to Fig. 1: Fig. 2: present embodiment mainly is made of nozzle housing (18), needle valve (19), nozzle (21), injector (16), nozzle (11), swirl It consists of a volute (9), an expansion-shaped fire path cover (5), a kitchen range top (8), and a base (1). The nozzle housing (18) is made of brass rods, and the needle valve (19) is connected in the housing. The outer circle of the valve is processed with external threads, which can be rotated or adjusted on the internal threads of the housing. One end of the valve body is processed with shrinkage angle, the outer wall of the middle part of the housing is welded with a gas pipe connected to the gas valve, the front end is connected with a nozzle (21), and the nozzle is specially made with a brass rod, and the inlet of the nozzle is processed with a contraction angle (20), and the housing ( 18) The external thread at the front end is connected or adjusted with the internal thread at the front end of the ejector (16). The ejector is made of cast iron, and the inner circle of the middle section is equipped with a mixing tube (15) and a diffuser tube (14). The outlet end of the mixing tube is extended To one-third of the total length of the taper inside the diffuser tube, the middle part of the diffuser tube is formed with a screw hole and a through hole connecting the supercharger (13), the supercharger (13) is made of cast iron, and the supercharger shell The outer wall of the shaft axis is formed with a conical expansion port, and a conical valve (12) is installed in the cone. A push-pull rod is connected to the center of the valve. The push-pull rod can slide in the inner hole at the relative position of the center of the valve. The outlet end is provided with a tapered hole nozzle (11), the outer wall of the nozzle is provided with a circular cooling fin or water tank, and the outer circle of the outlet end is processed with an external thread (10), and the external thread and the cyclone volute (9) are tangential to the inlet Internal thread connection, the pot shell (9) is welded with high temperature resistant material, or cast with high temperature resistant cast iron, the center of the cyclone pot shell is made with a swirl shaft (2), the swirl shaft is made of high temperature resistant material, the shaft The lower end of the step and the center hole at the bottom of the pot shell are connected as a whole, the lower end is connected with the stove (8), the hoarding (4), and the base (1), and the fixing bolts are connected as a whole, and the upper mouth of the pot shell is equipped with an expansion Taper cover (6), the outer circle of the upper part of the cover is made with hanging steps, the steps are suspended and connected with the inner circle steps of the lower part of the expanded fire channel cover (5), and the outer circle of the upper part of the expanded fire channel cover is connected with the inner circle steps of the lower part of the stove (8) Suspension connection, the expansion flue cover is cast with high temperature resistant cast iron, the stove is cast with ordinary cast iron, and the middle part of the circumferential inclined surface of the stove is respectively cast with conical protrusions. The application method of the utility model is: the gas pipe joint (17) It is communicated with the gas system (not shown in the figure), and then communicated with the nozzle housing (21) through the gas valve and the gas pipe. When adjusting the heat load or changing gas with different properties, the needle valve (19) can be rotated to move, and the effective flow section of the nozzle hole (21) can be changed by means of the contraction angle to adjust the gas flow. Adjust the effective section of the conical valve (12) of the push-pull supercharger (13) to adjust the flame combustion temperature to regulate the air flow. The working process of this embodiment is: the gas flows out from the nozzle (21) at a certain flow rate under a certain pressure, and the gas sucks all the air needed for combustion by its own energy, and mixes it in the mixing tube (15) . The uniformly mixed gas-air mixture passes through the nozzle (11) to increase the airflow velocity and enters the swirler volute (9) to generate a high-speed swirling airflow, which is formed under the cooperation of the expansion constriction cover (6) and the expansion channel cover (8) The strong fan-shaped flame is attached to the surface of the expansion flue cover (7) and burns, and is closed with the cooking utensils for radiant heating, thereby increasing the temperature of the furnace, improving thermal efficiency and saving fuel.

Referring to Fig. 3: Fig. 4: The difference between this embodiment and Fig. 1: Fig. 2: the embodiment shown is that the fixing bolts below the cyclone volute (9) are fixed on the bottom of the civil stove shell (1) On the support (2) of the whole, the gas switch assembly is installed on the stove shell. This embodiment is used on civilian cooking utensils. Its application method and working process are the same as the embodiment in Fig. 1.

The utility model is a general-purpose swirl fan flame stepless adjustable energy-saving burner, which can organically combine gas changes and combustion conditions, and has high air flow velocity. The flame is strong and the heating surface is large, and it can be close to the cooker for closed combustion, without heat dissipation loss and fast heating, which can meet various technological requirements and overcome the current burner's shortcomings of direct flame combustion with large heat dissipation loss and the combustion process. It is used in catering stoves and civilian stoves, which greatly improves the utilization rate and realizes the generalization and serialization of burning appliances. The burner has compact structure, novelty, safety and reliability, remarkable energy-saving effect, and high practical promotion value.

Claims (3)

1. General-purpose swirling fan flame stepless adjustment energy-saving burner and stove, mainly composed of nozzle shell, nozzle, needle valve, ejector, swirler, expansion channel cover, stove, base, There is a gas connector (17) connected to the gas system, and the gas pipe at the other end of the gas switch is connected to the gas hole in the middle section of the nozzle housing (18). It is characterized in that the nozzle housing (18) is connected with a needle valve (19) , the outer circle of the valve body is processed with external thread, which can be rotated or adjusted on the internal thread of the housing. One end of the valve body is processed with a contraction angle. The outer wall of the middle part of the housing (18) is welded with a gas pipe connected to the gas valve, and the front end is connected with a nozzle ( 21), the inlet of nozzle is shaped on contraction angle (20), and shell (18) front end external thread is connected or adjusted with ejector (16) front end inner screw hole, and ejector middle section inner circle is shaped on mixing tube (15 ), the diffuser pipe (14), the outlet end of the mixing pipe extends to 1/3 or 2/5 of the total length of the conical degree in the diffuser pipe, and the outer wall of the middle part of the diffuser pipe (14) is shaped on a connection supercharger (13) The screw hole and through hole, the axial outer wall of the supercharger shell is formed with a conical expansion port, the conical shell is equipped with a conical valve (12), the center of the valve is connected with a push-pull rod, and the push-pull rod can be positioned within the relative position of the valve center. The hole slides, and the front end of the injector (16) is also shaped on a tapered hole nozzle (11), and the outer wall of the nozzle is respectively shaped on a cooling fin or a water tank, and the outer circle of the outlet end is processed with an external thread (10), and the external thread and The inner thread of the tangential inlet of the cyclone pot shell (9) is connected. The center of the cyclone volute is formed with a swirl shaft (2). There are fixed bolts connected with the stove (8), the coaming (4) and the base (1) as a whole, the upper mouth of the volute is formed with an expansion tapered cover (6), and the upper outer circle of the expansion cover is formed with a suspension Steps, the steps are suspended and connected with the inner circle step at the lower part of the expanded fire path cover (5), the outer circle at the upper part of the expanded fire channel cover is suspended and connected with the inner circle step at the lower part of the cooktop (8), and the middle part of the circumferential inclined surface of the cooktop (8) is formed with a cone Convex shape. 2. The burner according to claim 1, characterized in that the shrinkage radius of the suction shrinkage tube of the ejector (8) is equal to 2.2-26 times the diameter of the inner circle of the mixing tube. 3. According to the burner specified in claim 1, it is characterized in that the contraction angle of the nozzle (3) is 20-30°

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