Biomass mold temperature controller

Abstract

The utility model discloses a biomass mold temperature controller. The biomass mold temperature controller comprises a combustion chamber and a preheating chamber which are communicated end to end, the inner peripheral wall and the inner top wall of the combustion chamber are each provided with a medium heat exchange structure, and the tail ends of the medium heat exchange structures communicate with the oil outlet gathering pipe. A medium preheating structure with the tail end connected with the front end of the medium heat exchange structure in series is arranged in the preheating chamber, and the front end of the medium preheating structure communicates with the oil inlet gathering pipe. The medium heat exchange structure comprises a plurality of heat exchange branch pipes connected in parallel. The heat exchange branch pipes are spirally arranged in the combustion chamber and close to the outer flame area of the flame. The medium preheating structure comprises a plurality of preheating branch pipes connected in parallel. According to the utility model, biomass particles are used as fuel, so that the cost is greatly reduced, and considerable cost is saved. The heat exchange branch pipes are arranged on the periphery and the top of the combustion chamber and are further arranged at the position close to the outer flame of the flame, a heat exchange structure similar to a capillary shape can be formed in a spiral arrangement mode, and the heat exchange efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of mold temperature controller technology, and in particular to an oil-circulating mold temperature controller that uses biomass as fuel. Background Technology

[0002] A mold temperature controller is short for mold temperature control device. It is a device used in industrial production to precisely control the temperature of molds or equipment, regulating the temperature to ensure the stability of product quality during the production process. It is widely used in injection molding, food processing, die casting, and other fields.

[0003] In the sheet metal processing industry, gas-fired mold temperature controllers are commonly used to heat heat transfer oil for hot pressing of the sheets. However, gas-fired mold temperature controllers consume huge amounts of fuel and require dedicated piping, making it difficult to reduce production costs. Biomass fuels, on the other hand, have a significant cost advantage and do not require dedicated piping, thus substantially reducing production costs.

[0004] Therefore, it is particularly important to develop a biomass mold temperature controller to reduce customers' production costs. Utility Model Content

[0005] This invention provides a biomass mold temperature controller to solve the problems mentioned in the background section. It uses biomass fuel, offering better cost advantages and higher heat exchange efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A biomass mold temperature controller includes a combustion chamber and a preheating chamber with insulation layers that are connected end to end. The combustion chamber is provided with a fuel filling port, a grate and a furnace door, and the preheating chamber is provided with a flue pipe at the end.

[0008] The combustion chamber is provided with a medium heat exchange structure on its inner peripheral wall and inner top wall, and the end of the medium heat exchange structure is connected to the oil outlet collection pipe.

[0009] The preheating chamber is provided with a medium preheating structure whose end is connected in series with the front end of the medium heat exchange structure. The front end of the medium preheating structure is connected to at least one oil inlet manifold with a pump station.

[0010] Preferably, the medium heat exchange structure includes a plurality of heat exchange branch pipes connected in parallel, the plurality of heat exchange branch pipes being arranged on the inner peripheral wall and inner top wall of the combustion chamber, and the ends of the plurality of heat exchange branch pipes being connected to the oil outlet manifold.

[0011] Preferably, at least one of the heat exchange branch pipes is arranged in a spiral direction in the combustion chamber near the outer flame of the flame.

[0012] Preferably, the adjacent heat exchange branch pipes are fitted together.

[0013] Preferably, the medium preheating structure includes a plurality of preheating branch pipes connected in parallel, and the plurality of preheating branch pipes are arranged in at least one of the following manner: tubular, U-shaped, serpentine, S-shaped, and spiral.

[0014] Preferably, the preheating chamber is divided into at least two interconnected chambers by a partition.

[0015] Preferably, the end of the preheating branch pipe is connected in series with the front end of the heat exchange branch pipe through a connecting pipe.

[0016] Preferably, the exhaust pipe is provided with an air preheating structure for supplying air to the combustion chamber.

[0017] Preferably, the air preheating structure includes a plurality of preheating pipes placed inside the flue pipe, and the ends of the preheating pipes are connected to the combustion chamber through a pipe with an air supply component.

[0018] Preferably, the fuel filling port is provided with an auger feed hopper, and the end of the auger feed hopper is provided with an air supply component.

[0019] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0020] This invention uses biomass pellets as fuel, which significantly reduces costs and eliminates the need for conventional gas pipelines, saving considerable expenses.

[0021] The heat exchange structure includes several heat exchange branches, which are arranged not only around and at the top of the combustion chamber but also near the outer flame. Their spiral arrangement forms a capillary-like heat exchange structure, significantly improving heat exchange efficiency. Furthermore, the heat exchange medium is preheated by the exhaust gases in the preheating chamber before entering, ensuring stable and efficient heat exchange. Attached Figure Description

[0022] Figure 1 This is a schematic front view of the structure of this utility model;

[0023] Figure 2 This is a top view illustrating the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the medium heat exchange structure and the medium preheating structure in this utility model;

[0025] Figure 4 This is a top view illustrating the structure of the medium heat exchange structure in this utility model;

[0026] Figure 5 This is a schematic diagram of the medium path structure in this utility model.

[0027] In the picture:

[0028] 100. Combustion chamber; 101. Oil inlet manifold; 102. Oil outlet manifold; 103. Insulation layer; 104. Furnace filling port; 105. Furnace door; 106. Grate; 107. Smoke outlet pipe; 108. Oil-gas separator; 109. Pump station; 110. Heat exchange branch pipe.

[0029] 200, preheating chamber; 201, partition; 202, ash removal door; 210, preheating branch pipe;

[0030] 300. Screw feeder hopper; 301. Feeding screw; 302. Air supply components;

[0031] 400. Air preheating structure; 401. Preheating pipe;

[0032] 5. Dust collector 6. Exhaust fan 7. Chimney. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the following is a summary description. Figure 1 To be continued Figure 5 The present invention will be further described in detail with reference to embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0034] This embodiment discloses a biomass mold temperature controller, which uses biomass fuel, has better cost advantages, and also has better heat exchange efficiency.

[0035] refer to Figures 1 to 5 The preferred embodiments of this utility model will be described in detail below. Specifically, it includes a combustion chamber 100 and a preheating chamber 200 connected end to end, both having an insulation layer 103 (which can be insulation bricks and / or insulation cotton in practice). The fuel is burned in the combustion chamber 100 and exchanges heat with the medium. The high-temperature flue gas can then enter the preheating chamber 200 to preheat the medium. This path is the flue gas flow path.

[0036] The combustion chamber 100 is equipped with a fuel loading port 104, a grate 106, and a furnace door 105. An auger feed hopper 300 is installed on the fuel loading port 104, allowing for precise and metered fuel delivery to control the fire intensity. During fuel delivery, outside air can enter the combustion chamber 100 through the fuel loading port 104 and / or the furnace door 105 to aid combustion.

[0037] In addition, to facilitate air supply, an air supply component 302 can be installed at the end of the screw conveyor hopper. This not only enables precise quantitative loading of fuel but also provides efficient air supply, resulting in higher combustion efficiency and controllable combustion intensity. The high-temperature flue gas after combustion can ultimately be discharged from the end of the preheating chamber 200 through the flue gas outlet pipe 107.

[0038] Of course, an air preheating structure 400 can also be installed on the flue gas pipe 107, which includes several in-line preheating tubes 401 placed inside the flue gas pipe 107. Fresh outside air exchanges heat with the flue gas pipe 107 in the in-line preheating tubes 401 (which can also be in the form of S-shaped tubes or serpentine tubes, etc.), further improving heat exchange efficiency and making full use of the exhaust gas heat energy. The fresh air in the preheating tubes 401 can be efficiently delivered into the combustion chamber 100 through a pipe with an air supply component. Specifically, the delivery location can be below the grate 106 or towards the middle of the combustion chamber 100, to further improve combustion efficiency and ensure the complete combustion of biomass fuel.

[0039] In this invention, the combustion chamber 100 has a medium heat exchange structure on its inner peripheral wall and inner top wall, forming a cage-like structure to enclose the heat and fully utilize the high temperature generated by combustion. The medium inside is heat transfer oil. The end of the medium heat exchange structure is connected to the oil outlet manifold 102. The preheating chamber 200 has a medium preheating structure whose end is connected in series with the front end of the medium heat exchange structure. The front end of the medium preheating structure is connected to at least one oil inlet manifold 101 equipped with a pump station 109.

[0040] The general path of the heat transfer oil is as follows:

[0041] The heat transfer oil first enters the preheating structure in the preheating chamber 200 through the oil inlet manifold 101 for preheating, then enters the heat exchange structure in series for sufficient heat exchange, and finally exits through the oil outlet manifold 102. Alternatively, the heat transfer oil can pass through the oil-gas separator 108 before entering the chamber to allow for the removal of gas.

[0042] The exhaust gas will first enter the dust collector 5, where gravity dust removal is carried out through multiple bends, and then the exhaust gas will be discharged from the chimney 7 by the induced draft fan 6.

[0043] To further improve heat exchange efficiency, the medium heat exchange structure includes several parallel heat exchange branch pipes 110 (in practice, four parallel heat exchange branch pipes 110 are used). The heat exchange branch pipes 110 are arranged on the inner peripheral wall and the inner top wall of the combustion chamber 100, wherein the inner peripheral wall is arranged in a spiral and the inner top wall is arranged in parallel, which can form a cage structure to fully enclose the heat.

[0044] Furthermore, the adjacent heat exchange branch pipes 110 are fitted together seamlessly and fixedly connected, making it difficult for high-temperature flue gas to convection through gaps and minimizing heat loss. The ends of several heat exchange branch pipes 110 are connected to the oil outlet manifold 102, which mixes the media in different parallel paths evenly before centralized output, maintaining a stable temperature.

[0045] In this embodiment, at least one of the heat exchange branch pipes 110 is arranged in a spiral pattern in the vertical direction within the combustion chamber 100, near the outer flame (of course, it can also be arranged in an S-shape, serpentine shape, or staggered straight pipe arrangement). That is, at least one heat exchange branch pipe 110 is arranged near the outer flame. In practice, four heat exchange branch pipes 110 are arranged spirally, with each pair of heat exchange branch pipes 110 forming a group, and the two groups arranged in a left-right direction (e.g., ...). Figure 1 , Figure 2 and Figure 4 As shown in the figure, it can fully absorb the heat of the outer flame.

[0046] In this embodiment, the medium preheating structure also includes several preheating branch pipes 210 connected in parallel. The diameter of these branch pipes can be shorter than the diameter of the heat exchange branch pipes 110. These preheating branch pipes 210 are arranged in at least one of the following configurations: tubular, U-shaped, serpentine, S-shaped, or spiral. They exchange heat with the high-temperature flue gas in the preheating chamber to initially indicate the temperature of the heat transfer oil. When the preheating branch pipes 210 flow into the heat exchange branch pipes 110, the flow can be first collected through a main pipe before entering each heat exchange branch pipe 110. This allows multiple streams of heat transfer oil to be collected first, their temperatures to be balanced, and then diverted again, further improving heat exchange efficiency.

[0047] To better utilize the high-temperature flue gas, the preheating chamber 200 is divided into at least two interconnected chambers by a partition 201. Each chamber forms an S-shaped channel, utilizing multiple deflections to improve the preheating effect of the heat transfer oil. Of course, a cleaning door 202 can be installed at the bottom of the preheating chamber 200 for timely cleaning and maintenance.

[0048] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0049] This invention uses biomass pellets as fuel, which significantly reduces costs and eliminates the need for conventional gas pipelines, saving considerable expenses.

[0050] The heat exchange structure includes several heat exchange branches, which are arranged not only around and at the top of the combustion chamber but also near the outer flame. Their spiral arrangement forms a capillary-like heat exchange structure, significantly improving heat exchange efficiency. Furthermore, the heat exchange medium is preheated by the exhaust gases in the preheating chamber before entering, ensuring stable and efficient heat exchange.

[0051] This invention employs a structure of overall series connection and partial parallel connection to improve the heat exchange efficiency of the medium. In the high-temperature zone of the combustion chamber, multiple parallel connections are used to fully absorb heat. The medium is then mixed and heated evenly through a collection pipe before being centrally output, ensuring that the temperature of the medium is stable and reliable.

[0052] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A biomass mold temperature controller, comprising a combustion chamber (100) and a preheating chamber (200) connected end to end with an insulation layer (103), wherein the combustion chamber (100) is provided with a fuel filling port (104), a grate (106) and a furnace door (105), and the preheating chamber (200) is provided with a flue pipe (107) at the end. Its features are: The combustion chamber (100) is provided with a medium heat exchange structure on its inner peripheral wall and inner top wall, and the end of the medium heat exchange structure is connected to the oil outlet manifold (102). The preheating chamber (200) is provided with a medium preheating structure whose end is connected in series with the front end of the medium heat exchange structure. The front end of the medium preheating structure is connected to at least one oil inlet manifold (101) with a pump station (109).

2. The biomass mold temperature controller according to claim 1, characterized in that: The medium heat exchange structure includes several heat exchange branch pipes (110) connected in parallel. The heat exchange branch pipes (110) are arranged on the inner peripheral wall and inner top wall of the combustion chamber (100). The ends of the heat exchange branch pipes (110) are connected to the oil outlet manifold (102).

3. The biomass mold temperature controller according to claim 2, characterized in that: At least one of the heat exchange branch pipes (110) is arranged in a spiral direction in the upper and lower part of the combustion chamber (100) near the outer flame of the flame.

4. The biomass mold temperature controller according to claim 3, characterized in that: The adjacent heat exchange branch pipes (110) are in contact with each other.

5. The biomass mold temperature controller according to claim 4, characterized in that: The medium preheating structure includes a plurality of preheating branch pipes (210) connected in parallel, and the plurality of preheating branch pipes (210) are arranged in at least one of the following manner: tubular, U-shaped, serpentine, S-shaped, and spiral.

6. The biomass mold temperature controller according to claim 5, characterized in that: The preheating chamber (200) is divided into at least two interconnected chambers by a partition (201).

7. The biomass mold temperature controller according to claim 6, characterized in that: The end of the preheating branch pipe (210) is connected in series with the front end of the heat exchange branch pipe (110) through a converging pipe.

8. The biomass mold temperature controller according to claim 5, characterized in that: The exhaust pipe (107) is provided with an air preheating structure (400) for supplying air into the combustion chamber (100).

9. The biomass mold temperature controller according to claim 8, characterized in that: The air preheating structure (400) includes a plurality of preheating pipes (401) placed inside the smoke outlet pipe (107), and the ends of the preheating pipes (401) are connected to the combustion chamber (100) through a pipe with an air supply component.

10. The biomass mold temperature controller according to claim 1, characterized in that: The fuel filling port (104) is provided with an auger feeder (300), and the end of the auger feeder (300) is provided with an air supply component (302).

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