CN205991524U - A kind of blowing-type kitchen range - Google Patents

Abstract

The utility model provides a blower type cooker, which comprises a blower and a high-temperature flue gas return pipe connected with a furnace at one end, and the other end of the high-temperature flue gas return pipe is connected with an air inlet of the blower. The other end of the high-temperature flue gas return pipe of the utility model is connected to the blower, and by changing the connection position of the other end of the high-temperature flue gas return pipe, the pressure of the fresh air blown by the blower in the prior art is greater than that of the high-temperature flue gas return pipe entering the mixing The technical problem of the negative pressure of the high-temperature waste heat flue gas in the cavity or the intake pipe; the high-temperature waste heat flue gas enters from the air inlet of the blower, and under the action of the blower, the high-temperature waste heat flue gas can be fully recovered and reused, and the heat utilization rate is high.

Description

A blower stove

technical field

The utility model relates to the technical field of commercial cookers for public kitchens, in particular to a blast cooker.

Background technique

Existing hotels, large-scale commercial catering and corporate canteens usually contain a lot of heat in the flue gas discharged from commercial stoves after fuel combustion. These heat are usually discharged directly and cannot be fully utilized, thus wasting a lot of energy and cannot be fully utilized. The effect of energy saving and emission reduction is achieved, and the thermal efficiency of the stove is also reduced. Therefore, in order to solve the above-mentioned technical problems, the Chinese patent No. 201420484842.4 discloses a blast cooker that realizes high-temperature and low-oxygen combustion, including a furnace, a burner, a high-temperature flue gas return pipe, a fuel feed pipe, an air intake pipe and Blower, the furnace is equipped with a high-temperature flue gas collecting chamber, and the lower part of the burner is a mixing chamber for high-temperature flue gas and fresh air. One end of the high-temperature flue gas return pipe is connected to the high-temperature flue gas collecting chamber, and the other end is connected to the mixing chamber ; This technical solution recovers and fully utilizes the waste heat of high-temperature flue gas through the high-temperature flue gas return pipe connected at one end to the high-temperature flue gas collection chamber and the other end to the mixing chamber, so as to achieve the effect of energy saving and environmental protection.

However, the patent number is: 201420484842.4 Chinese patent in the process of use, the pressure of the fresh air that the blower enters the mixing chamber through the inlet pipe connected to it is greater than the negative pressure of the high-temperature flue gas return pipe entering the mixing chamber; therefore, there are the following disadvantages or insufficient:

① Only a small amount of high-temperature waste heat flue gas enters the mixing chamber. After a small amount of high-temperature waste heat flue gas enters the mixing chamber, the mixing chamber cannot form a high-temperature and low-oxygen environment because the pressure is higher than that in the furnace.

②The high-temperature waste heat flue gas cannot enter the mixing chamber, and the purpose of waste heat recovery cannot be achieved. The efficiency of recovering waste heat is poor, the heat utilization rate is low, and the high-temperature waste heat flue gas cannot be fully recycled.

In addition, the other end of the high-temperature flue gas return pipe is connected to the mixing chamber or connected to the intake pipe, all of which have the above deficiencies or defects.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a blast stove, which can make full use of high-temperature waste heat flue gas, has high heat utilization rate, and has better energy-saving and emission-reduction effects.

In order to achieve the above object, the utility model adopts the following technical solutions:

A blower type cooker includes a blower and a high-temperature flue gas return pipe connected to a furnace at one end, and the other end of the high-temperature flue gas return pipe is connected to an air inlet of the blower.

Wherein, the air inlet of the blower is divided into an air inlet and a waste heat recovery port by a partition, and the other end of the high-temperature flue gas return pipe communicates with the waste heat recovery port.

Specifically, a sealing plate matching the opening is processed on the waste heat recovery port, and a funnel-shaped connector connected to the waste heat recovery port is connected to the outer side of the sealing plate.

Furthermore, the large-diameter end of the funnel-shaped connector is connected to the sealing plate, the inner wall of the small-diameter section of the funnel-shaped connector is provided with an inner wire, and the inner wire on the inner wall of the small-diameter end is used to connect with the high-temperature flue gas return pipe connect.

Compared with the prior art, the utility model has the following beneficial effects:

1. The other end of the high-temperature flue gas return pipe of the utility model is connected to the blower. By changing the connection position of the other end of the high-temperature flue gas return pipe, the pressure of the fresh air blown by the blower is greater than that of the high-temperature flue gas return pipe in the prior art. The technical problem of negative pressure of the high-temperature waste heat flue gas entering the mixing chamber or the intake pipe; the blast stove that realizes high-temperature and low-oxygen combustion has higher combustion stability, and the temperature in the furnace is more uniform, which improves the heating quality; low-oxygen combustion not only makes the exhaust gas The CO content in the fuel is greatly reduced, and the low-oxygen combustion environment greatly reduces the generation of nitrogen oxides, which is conducive to environmental protection.

2. The air inlet of the blower is divided into an air inlet and a waste heat recovery port through a partition. The structure is simple, and it is convenient to connect the high-temperature flue gas return pipe. Fresh air and waste heat can enter effectively and fully. The air inlet enters, and under the action of the blower, the high-temperature waste heat flue gas can be fully recovered and reused, and the heat utilization rate is high.

Description of drawings

Fig. 1 is the structural representation of prior art;

Fig. 2 is the structural representation of the utility model;

Fig. 3 is a schematic diagram of the plane structure of the blower air inlet and the funnel-shaped connector of the utility model;

FIG. 4 is a structural schematic diagram of another angle of FIG. 3 .

detailed description

Below in conjunction with accompanying drawing and embodiment the technical solution in the utility model is further described.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the utility model proposes a blower type cooker, which includes a blower 6, a furnace 1 and a high-temperature flue gas return pipe 3 connected to it at one end, and the high-temperature flue gas The other end of the return pipe 3 is connected to the air inlet of the blower 6, and the air inlet of the blower 6 is divided into an air inlet 62 and a waste heat recovery port 63 by a partition 61. The other end of the high-temperature flue gas return pipe 3 Connect with waste heat recovery port 63. The high-temperature flue gas return pipe 3 is connected to the blower 6, and under the pressure of the blower 6, waste heat can effectively enter the mixing chamber 9 and mix with fresh air, and be fully burned in the burner 2; the stove can make full use of the high-temperature waste heat flue gas, and the thermal efficiency is higher High, better energy-saving effect. The air inlet of the blower 6 is divided into an air inlet 62 and a waste heat recovery port 63 by a partition 61. The structure is simple, and it is convenient to connect the high-temperature flue gas return pipe 3. Both fresh air and waste heat can enter effectively, realizing high-temperature low-oxygen combustion The blast stove has higher combustion stability and more uniform temperature in the furnace, which improves the heating quality; low-oxygen combustion not only greatly reduces the CO content in the exhaust gas, but also greatly reduces the generation of nitrogen oxides in the environment of low-oxygen combustion , is conducive to environmental protection.

As shown in Figure 2, Figure 3 and Figure 4, the waste heat recovery port 63 is processed with a sealing plate matching its mouth, and the waste heat recovery port 63 is sealed by the sealing plate matching the waste heat recovery port 63, and then connected The funnel-shaped connector 64 is connected through, and the sealing performance is good. When waste heat enters, it will not leak through the gap, so as to avoid insufficient waste heat recovery. As a preferred solution, the inner wall of the small-diameter section of the funnel-shaped connector 64 is provided with an inner wire, the large-diameter end of the funnel-shaped connector 64 is connected to the sealing plate, and the inner wire on the inner wall of the funnel-shaped connector 64 is connected to the high-temperature smoke. Air return pipe 3 is connected. The other end of the high-temperature flue gas return pipe 3 is disassembled and connected to the connector through the inner wire on the inner wall of the small-diameter end of the funnel-shaped connector 64, which is convenient for connection, disassembly and replacement, and has low cost and is easy to popularize and apply. Furthermore, the funnel-shaped connector 64 can be placed in the middle of the air inlet, or at the edge. The position of the funnel-shaped connector 64 is set according to the installation environment; the flexibility is high and the market prospect is great. The inner side of the furnace 1 is provided with 11 layers of infrared radiation heat exchange materials.

In the utility model, the burner 2 is mounted on the bottom of the furnace 1, and the fuel feed pipe 4 is connected thereon, and the fuel is delivered to the burner 2 through the fuel feed pipe 4 . One end of the high-temperature flue gas return pipe 3 is connected to the high-temperature flue gas collection chamber 8 , and the other end is connected to the funnel-shaped connector 64 on the blower 6 , so that the high-temperature flue gas can be fully sent into the mixing chamber 9 . One end of the air intake pipe 5 is connected to the mixing chamber 9 , and the other end is connected to the blower 6 , so that air can be sent into the mixing chamber 9 . During operation, part of the high-temperature flue gas generated after the burner 2 burns first heats the frying pan, and then enters the high-temperature flue gas collection cavity 8 of the furnace 1 through the flue gas return hole 7, and part of the heat carried by the flue gas is conducted to the furnace 1. In the inner layer, the high-temperature flue gas return pipe 3 is mixed with the fresh air blown by the blower 6 to become low-oxygen high-temperature air, which enters the burner 2 again and is mixed with the fuel input by the fuel pipe to form a high-temperature and low-oxygen combustion environment. Part of the exhaust gas after combustion is discharged out of the furnace 1 through the exhaust gas discharge hole 10, so that the cycle goes back and forth to achieve the energy-saving effect. The thermal efficiency of the utility model is greater than 10%.

When the utility model starts to burn, the fresh air blown in by the blower 6 is not resisted in the mixing chamber 9 and can quickly reach the furnace 1 for combustion to form high-temperature gas. Then, the high-temperature exhaust gas formed after combustion in the furnace passes through the flue gas return hole 7, the high-temperature flue gas collection chamber 8, and then enters the blower 6 through the high-temperature flue gas return pipe 3, and is mixed with fresh air in the mixing chamber 9; the gas temperature after mixing Elevate to achieve the purpose of combustion. Since the pressure in the mixing chamber 9 is higher than that in the furnace 1, the high-temperature gas can flow back into the mixing chamber 9 through the high-temperature flue gas return pipe 3, blower 6, and intake pipe 5, and circulate in sequence.

In the preferred solution of the utility model, the furnace 1 has a double-layer structure. In addition, the furnace 1 can also adopt a single-layer structure. When the furnace 1 is a single-layer structure, the high-temperature flue gas return pipe 3 communicates with the furnace 1 to realize Waste heat recovery.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (2)

1. A blower type cooker, comprising a blower and a high-temperature flue gas return pipe connected to a furnace at one end, characterized in that: the furnace is a single-layer or double-layer structure, and the inner side of the furnace is provided with an infrared radiation heat exchange material layer , the other end of the high-temperature flue gas return pipe is connected to the air inlet of the blower; the air inlet of the blower is divided into an air inlet and a waste heat recovery port through a partition, and the other end of the high-temperature flue gas return pipe is connected to The waste heat recovery port is connected; the waste heat recovery port is processed with a sealing plate matching its mouth, and a funnel-shaped connector connected to the waste heat recovery port is connected to the outer side of the sealing plate. 2. A blast cooker according to claim 1, characterized in that: the large-diameter end of the funnel-shaped connector is connected to the sealing plate, and the inner wall of the small-diameter section of the funnel-shaped connector is provided with an inner wire , the small-diameter end of the funnel-shaped connector is connected to the high-temperature flue gas return pipe through the inner wire on the inner wall.