TWM635353U - Natural gas intake and premixing structure of coffee bean roaster - Google Patents

Abstract

This model relates to a gas natural air intake premixing structure of a bean roaster. Combustion chamber below the bean roasting trough, a heating element located in the combustion chamber, an air outlet channel located on the side of the bean roasting machine body and on the side of the bean roasting trough, and an air intake channel connecting the heating element and the outside of the bean roasting machine body , and a gas introduction part arranged on the main body of the bean roaster and connected to the heating element. With the above structure, because the roaster body is a closed space, when the heating element heats the bean roasting tank, the action of discharging the heated gas generates negative pressure, and the external air is introduced from the air intake channel to mix the external air in the heating element. Air and gas, so the natural intake method can be used to improve combustion efficiency, and at the same time eliminate the risk of gas explosion.

Description

Gas natural intake premixed structure of roaster

The present invention provides a gas natural intake premixing structure of a bean roaster which utilizes a simple structure to realize negative pressure natural intake, which can improve combustion efficiency and solve the risk of explosion of the premixed gas.

Press, coffee is mainly made of raw coffee beans through shelling, sun drying, baking and other procedures. Green coffee beans are odorless and tasteless, and must be roasted to make chemical changes in green coffee beans to bring out a strong aroma, and according to the degree of roasting Different flavors of coffee can be developed, and the most commonly used roasting process is the bean roaster.

Bean roasting machines generally have three types: charcoal heating, electric heating tube heating, and gas furnace heating. Although charcoal roasting has a unique charcoal fragrance, it is not easy to operate and the temperature is not easy to control. Although the electric heating tube has stable firepower, it consumes a lot of power, so it uses gas heating. The roaster is still the most common way of roasting.

However, the above-mentioned bean roaster using gas heating has the following problems and deficiencies that need to be improved:

First, when using gas as a fuel, the main problem lies in the combustion efficiency. During the combustion process, only 85% of the gas may be completely combusted, and the incompletely combusted part will form waste gas or be discharged directly, which not only causes waste of energy, but also causes waste per unit time. Insufficient amount of fuel inside makes the combustion temperature lower, which is commonly known as a prosperous fire.

Second, in the known technology, there is a method of adding oxygen to improve the combustion efficiency, but generally it can only be used in the part of the after-burning engine. , It is rarely necessary to adjust the firepower, so the amount of oxygen added is relatively fixed. In other words, if oxygen is added to the fire source of roasted coffee beans, gas explosion is very easy to occur, and safety problems are not easy to eliminate.

Third, in order to improve the combustion efficiency, more advanced bean roasters will use more special or sophisticated designs, such as allowing gas and oxygen to be pre-mixed before the double throttle valve, so as to control the gas output mode and reduce the consumption of gas. There is an explosion risk of gas mixed with oxygen. However, this design not only makes the roaster expensive, but also may cause an explosion due to improper operation.

Therefore, how to solve the above-mentioned conventional problems and deficiencies is the direction that the applicant of the present invention and the relevant manufacturers engaged in this industry want to study and improve urgently.

Therefore, in view of the above-mentioned shortcomings, the applicant of the present model has collected relevant information, evaluated and considered in many ways, and based on years of experience accumulated in this industry, through continuous trial and modification, he designed this simple structure to realize the load. The new patentee of the gas natural intake premixing structure of the bean roaster which can improve the combustion efficiency and solve the explosion risk of the premixed gas.

The main purpose of this new model is to design the main body of the bean roaster as a closed space, with only a single air outlet channel and a single air intake channel, so as to cooperate with the heating element to form a negative pressure effect, and then introduce external fresh air and gas to form a premix, so as to improve The purpose of combustion efficiency.

Another main purpose of the new model is to control the mixing position of fresh air and gas in the heating element, so that the gas and oxygen are only mixed before combustion, so as to reduce the risk of gas explosion by shortening the time of premixing.

In order to achieve the above-mentioned purpose, the main structure of the present invention includes: a bean roasting machine body, a bean roasting trough, a combustion chamber, a heating assembly, an air outlet channel, an air intake channel, and a gas introduction part, wherein the bean roasting The interior of the machine body is a closed space, the bean roasting trough is pivotally arranged in the bean roasting machine body, the combustion chamber is defined in the bean roasting machine body and is located below the bean roasting trough, and the heating element is arranged in the combustion chamber to control the roasted beans. The air outlet channel is set on the main body of the bean roaster and located on one side of the bean roaster tank to discharge the heated gas. The air inlet channel communicates with the heating element and the outside of the bean roaster body, and the gas inlet is located on the bean roaster. On the machine body and connected to the heating element.

When the user uses this new type of roasting coffee beans, the coffee beans are placed in the bean roasting trough, and the heating element is used to heat the bean roasting trough with the gas introduction part. At this time, because the bean roaster body is a closed space , the hot air can only be discharged from the air outlet channel, so a negative pressure space can be naturally formed in the body of the bean roaster, and fresh air from the outside can be introduced through the air intake channel, so that the air can be introduced into the heating component to complete the premixing action of gas and oxygen. And increase the combustion efficiency of gas, thereby increasing the flame temperature and reducing energy waste, and the gas will burn immediately after being premixed with oxygen, and will not be stored, so the risk of gas explosion can be greatly reduced, and the overall structure is simple, which will not cause manufacturing problems cost increase.

With the above-mentioned technology, it is possible to overcome the problems of poor combustion efficiency, prone to gas explosion, and high equipment cost existing in conventional bean roasters using gas heating, and achieve the practical progress of the above-mentioned advantages.

1: The main body of the roaster

2: Bean trough

3: Combustion chamber

4: Heating components

41: heating tube

411: mixed air space

412: Air intake

413: gas inlet

414: fire vent

42: Positioning tube

43: fire block

5: Outlet channel

51: Outlet valve

52: Operating parts

6: Intake channel

7: Gas introduction parts

71: regulating valve

72:Accommodating shell

8: door body

81: Observation window

82: Air intake

9: exhaust fan

The first figure is a three-dimensional perspective view of a preferred embodiment of the present invention.

The second figure is a schematic diagram of the internal structure of the preferred embodiment of the present invention.

The third figure is a heating schematic diagram of a preferred embodiment of the present invention.

The 4th figure is the natural air intake schematic diagram of the preferred embodiment of the present invention.

The fifth figure is a perspective view of another preferred embodiment of the present invention.

The sixth figure is an exploded view of the partial structure of another preferred embodiment of the present invention.

The seventh figure is a schematic diagram of assembly of another preferred embodiment of the present invention.

The eighth figure is a schematic diagram of forced air intake of another preferred embodiment of the present invention.

In order to achieve the above-mentioned purpose and effect, the technical means and the structure adopted by the present invention are hereby illustrated in detail with respect to the preferred embodiments of the present invention. Its features and functions are as follows, so as to fully understand.

See also shown in the first figure and the second figure, it is a three-dimensional perspective view and a schematic diagram of the internal structure of a preferred embodiment of the present invention. It can be clearly seen that the present model comprises:

A bean roaster body 1, and the interior of the bean roaster body 1 is a closed space;

A bean roasting trough 2 is pivotally arranged in the bean roasting machine body 1, and the present embodiment takes a cylindrical roasting cylinder as an example;

A combustion chamber 3 is defined in the bean roaster body 1 and located below the bean roaster trough 2;

A heating assembly 4 is arranged in the combustion chamber 3 to heat the bean roasting tank 2. The heating assembly 4 has a plurality of heating pipes 41, and a gas mixing space 411 is formed in each of the heating pipes 41, and each of the heating pipes 41 The heating pipe 41 has a plurality of air inlets 412 connected to the following air intake channel 6 and a gas inlet 413 connected to the gas inlet 7 described below;

An air outlet channel 5 is arranged on the main body 1 of the bean roaster and is located on one side of the bean roaster trough 2 , to discharge the heating gas;

An air inlet passage 6 is connected with the heating element 4 and the outside of the bean baker body 1. This embodiment is similar to a narrow-mouthed bottle and is an independent space in a closed space. The narrow-mouthed end is connected to the baked beans Outside the machine body 1, the wide body end is provided with a heating element 4; and

A gas introduction part 7 is arranged on the main body 1 of the bean roaster and communicated with the heating assembly 4 . In this embodiment, an accommodating shell 72 with a regulating valve 71 is taken as an example. Thereby, negative pressure is generated by the action of discharging the heated gas, and external air is introduced from the air intake passage 6 to mix the external air and gas in the heating element 4 .

Through the above description, the structure of this technology can already be understood, and according to the corresponding cooperation of this structure, a simple structure can be used to realize negative pressure natural intake, which has the advantages of improving combustion efficiency and solving the risk of explosion of premixed gas, and so on. Detailed explanation will be explained below.

Please refer to the first figure to the fourth figure at the same time, which are the three-dimensional perspective view and the natural air intake schematic diagram of the preferred embodiment of the present invention. When the above-mentioned components are assembled, it can be clearly seen from the figure that the baked beans The interior of the machine body 1 is basically designed as a closed space. The bean roasting tank 2 is located in the upper half of the closed space, and the combustion chamber 3 is located in the lower half of the closed space. One side of the bean roasting tank 2 communicates with the outside of the bean roaster body 1 through the two channels of the air outlet channel 5, so that the gas inside the bean roaster body 1 flows, and only the air intake channel 6, the interior of the bean roaster body 1, and the air outlet channel 5 path flow.

In actual use, the user pours coffee beans into the bean roasting tank 2, and cooperates with the regulating valve 71 of the gas introduction part 7 to introduce gas (indicated by a solid arrow in the figure) into the housing shell 72 at a uniform speed, and heat The gas inlet 413 at the bottom of the assembly 4 is connected to the housing 72 of the gas introduction part 7, so that after passing through the gas mixing space 411 in the heating tube 41, a structure such as an igniter is used to generate a flame pair at the top of the heating tube 41. The bean trough 2 is heated. At this time, since the bean roaster body 1 is a closed space, and the heated gas gradually increases the air pressure in the closed space, and the hot gas can only be discharged from the air outlet channel 5, so when a large amount of gas is discharged from the air outlet channel 5, the bean roaster body The air pressure inside 1 drops rapidly, so that a negative pressure space is naturally formed inside the bean roaster body 1 . Next, because the air intake channel 6 is another channel through which the bean roaster body 1 communicates with the outside, the external fresh air (indicated by a hollow arrow in the figure) is introduced from the air intake channel 6, and the fresh air introduced is first Filled in the independent space of the air intake channel 6, it will not directly contact the gas in the gas introduction part 7, but will enter the gas mixing space 411 through the air inlet 412 of the heating pipe 41, and because the gas mixing space 411 is The narrow and long small space inside the heating tube 41, narrow and long It is conducive to the mixing of gas and oxygen, and the small space can limit the amount of gas and oxygen at the same time. In this way, it can not only improve the premixing efficiency of gas and oxygen, but also avoid the contact time of gas and oxygen for too long, so as to reduce the gas risk of explosion. Furthermore, completing the premixing of gas and oxygen can increase the combustion efficiency of the gas, increase the flame temperature, stabilize the heating temperature, and reduce energy waste, which in turn facilitates the user's control over the roasting of coffee beans and the premixing of gas and oxygen Immediately after burning, it will not be stored, so the risk of gas explosion can be greatly reduced, and the overall structure is simple, which will not increase the manufacturing cost.

Please refer to the fifth figure to the seventh figure at the same time, which is a perspective view to an assembly schematic diagram of another preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above-mentioned embodiment. There is only one door body 8 on the bean baker body 1, the door body 8 has an observation window 81, and a plurality of air intake parts 82 connected to the air intake passage 6, the air outlet passage 5 has an air outlet valve 51, and the The heating assembly 4 has a plurality of positioning pipes 42 passing through the air intake channel 6 and the gas introduction part 7, each of the heating pipes 41 is respectively arranged on each of the positioning pipes 42, and each of the heating pipes 41 ends is surrounded to form at least A fire outlet 414, and a fire-stopping portion 43 provided on the heating tube 41 for shielding and changing the flame direction.

The door body 8 is corresponding to the wall surface of the bean roaster body 1 pivotally arranged on the combustion chamber 3, which is convenient for the user to use the switch of the door body 8 to clean the interior of the combustion chamber 3, and the observation window 81 is for the user to watch the flame burning condition , to adjust the gas volume at any time, the gas outlet valve 51 is naturally suspended in the gas outlet channel 5, and the gas outlet valve 51 is in a closed state when it is not in use or the internal and external air pressure is balanced. When the internal pressure increases, the gas outlet can be automatically pushed open Valve 51. In addition, the heating tube 41 of the heating element 4 is fixed through the positioning tube 42. The positioning tube 42 is fixed and connected through the bottom wall of the air intake channel 6 and the top wall of the gas introduction part 7, so the user only needs to open the door body 8, the heating tube 41 can be simply locked or unscrewed by hand, and the heating tube 41 can be assembled or disassembled relative to the positioning tube 42, and has the effect of simple structure and convenient cleaning.

Furthermore, the side of the fire outlet 414 of the heating pipe 41 has a fire blocking part 43. Since the bean roasting trough is directly above the heating pipe 41, water droplets, debris, dust and other sundries may fall during the heating process. Therefore, the fire blocking part 43 can be used to block the fire outlet 414 from being directly blocked by sundries. This kind of heating tube 41 usually has a problem of red fire. Turn the disadvantage of the fire stop 43 into an advantage.

Please refer to the eighth figure at the same time, which is a schematic diagram of the forced air intake of another preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above-mentioned embodiment, and it is only shown in the figure. An operating part 52 connected to the air outlet valve 51 is provided outside the air passage 5, which is used to control the opening and closing of the air outlet valve 51, and an exhaust fan 9 connected to the air outlet passage 5 is provided on the side of the roaster body 1. The main body 1 of the bean roaster of this new type connects the exhaust fan 9 at the post-combustion engine to the air outlet channel 5, so that when the exhaust fan 9 is in operation, the air inside the bean roaster body 1 can be forcibly drawn out through the air outlet channel 5 at the same time, so as to Accelerate or ensure the maintenance of the negative pressure space, so that the external fresh air can be continuously introduced, and an operating part 52 can be connected to the air outlet valve 51, so that the user can manually control the opening range of the air outlet valve 51 to adjust the exhaust fan 9 to the closed space degree of influence.

However, the above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be treated in the same way. Included in the scope of the patent of this model, it is agreed to Chen Ming.

To sum up, the gas natural air intake premixing structure of the bean roaster of this new type can really achieve its effect and purpose when used, so this new type is a new type with excellent practicability, and it is in line with the application for a new type patent The requirements are to submit an application in accordance with the law. I hope that the review committee will approve the new model as soon as possible to protect the hard work of the applicant. If the review committee of Junju Bureau has any doubts, please feel free to send a letter to instruct. The applicant will definitely cooperate with it.

1: The main body of the roaster

2: Bean trough

3: Combustion chamber

4: Heating components

41: heating tube

411: mixed gas space

412: Air intake

413: gas inlet

6: Intake channel

72:Accommodating shell

Claims (9)

A gas natural intake premixing structure for a bean roaster, which mainly includes: A bean roaster body, and the inside of the bean roaster body is a closed space; A bean roasting trough is pivotally installed in the bean roasting machine body; A combustion chamber is defined in the bean roaster body and located below the bean roaster trough; A heating element is installed in the combustion chamber to heat the bean roasting tank; An air outlet channel is arranged on the main body of the bean roaster and located on one side of the bean roaster trough to discharge the heating gas; an air intake channel is connected with the heating element and the outside of the bean roaster body; and A gas introduction part is arranged on the main body of the bean roaster and communicated with the heating element, and generates negative pressure through the action of discharging heated gas, and introduces external air from the air intake channel to mix the external air in the heating element air and gas. The gas natural air intake premixing structure of the bean roaster described in item 1 of the scope of the patent application, wherein the air outlet channel has an air outlet valve. The gas natural intake premixing structure of the bean roaster described in item 2 of the scope of the patent application, wherein the gas outlet passage is provided with an operating part connected to the gas outlet valve, which is used to control the opening and closing of the gas outlet valve. The gas natural intake premixing structure of the bean roaster described in item 1 of the scope of the patent application, wherein the bean roaster body has a door body, and the door body has a plurality of air intake parts connected to the air intake passage. The gas natural air intake premixing structure of the bean roaster described in item 4 of the scope of the patent application, wherein the door body has an observation window. The gas natural intake premixing structure of the bean roaster as described in item 1 of the scope of the patent application, wherein the heating element has a plurality of heating tubes, each of which forms a gas mixing space, and each of the heating tubes has a plurality of An air inlet connected to the air inlet channel and a gas inlet connected to the gas inlet. The gas natural air intake premixing structure of the bean roaster described in item 6 of the scope of the patent application, wherein the heating element has a plurality of positioning pipes passing through the air intake passage and the gas introduction part, and each of the heating pipes is separately Set on each positioning tube. The gas natural intake premixing structure of the bean roaster described in item 1 of the patent scope of the application, wherein the heating element has a plurality of heating tubes, and at least one fire outlet is formed around the end of each heating tube, and one is arranged on the The fire-blocking part on the heating pipe is used to block and change the direction of the flame. The gas natural air intake premixing structure of the bean roaster described in item 1 of the scope of the patent application, wherein an exhaust fan is provided on one side of the bean roaster body, which is connected to the air outlet channel.

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