A new type of water-heating boiler with adjustable working modes

Abstract

This utility model relates to a novel water-heating boiler with adjustable operating modes, belonging to the field of boiler technology. It includes a furnace body and a chimney. The furnace body comprises an outer liner and an inner liner. A front baffle, a middle baffle, and a rear baffle are sequentially and alternately arranged on the inner wall of the inner liner to form a three-pass flow channel. A through-hole is provided on the middle baffle as a second-pass flue pipe; a through-hole is provided on the rear baffle as a third-pass flue pipe. A fire channel switching plate for switching between cooking and heating modes is hinged to the rear side of the middle baffle. This utility model's boiler improves heat utilization efficiency through the three-pass flow channel arrangement and waste heat recovery structure. The openings in the middle and rear baffles serve as return flue pipes, and the fire channel switching plate allows for switching between energy-saving and rapid heating modes. In the rapid heating mode, the short flue gas path and high flow velocity result in rapid temperature rise.

Description

Technical Field

[0001] This utility model relates to a novel water-heating boiler with adjustable working modes, belonging to the field of boiler technology. Background Technology

[0002] Boilers are commonly used for heating in winter. Traditional boilers are mostly designed with a single-pass or simple multi-pass structure. The hot air has a short flow path and limited residence time in the furnace body, resulting in a large amount of heat not being fully utilized and being discharged with the flue gas. This not only causes serious energy waste but also increases the cost of use.

[0003] Furthermore, in rural life, boilers often need to serve multiple functions, including cooking and heating. However, most boilers currently on the market have significant limitations in their functional design, making it difficult to efficiently switch between cooking and heating modes. Traditional boilers have low thermal efficiency, poor fuel adaptability, require frequent coal additions, and have low heat output, resulting in slow cooking or even undercooked food. While there have been improvements in boilers on the market, these problems have not been completely resolved.

[0004] Traditional boilers have a fixed flow channel structure, and the flow path of hot air cannot be adjusted according to different functional requirements. They cannot achieve the coexistence of energy-saving mode and rapid heating mode, nor can they switch between energy-saving mode and rapid heating mode. They cannot utilize heat as needed. Utility Model Content

[0005] The purpose of this invention is to provide a novel water-heating boiler with adjustable operating modes to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel water-heating boiler with adjustable operating modes includes a furnace body and a chimney. The furnace body includes an outer liner and an inner liner. A front baffle, a middle baffle, and a rear baffle are arranged alternately on the inner wall of the inner liner to form a three-pass flow channel. The front baffle is fixed to the upper part of the combustion chamber. The rear side of the rear baffle corresponds to the inlet of the chimney. A through hole is provided on the middle baffle as a second-pass flue pipe. A through hole is provided on the rear side of the middle baffle as a flue switching plate for switching between cooking and heating modes. A feeding bin door is provided on the surface of the furnace body, and a cooking opening is provided above the combustion chamber. A grate is provided at the lower part of the combustion chamber.

[0008] A further improvement to this technical solution is that the flue switching plate is located in the second pass between the middle partition and the rear partition, and the flue switching plate controls the opening and closing of the outlet of the second pass flue.

[0009] A further improvement to this technical solution is that the rear partition is bent toward the chimney.

[0010] A further improvement to this technical solution is that several oxygen distribution boxes are provided in the upper part of the combustion chamber, and the oxygen distribution boxes are connected to the outside and the opening size is adjusted by an adjustable air distribution cover.

[0011] A further improvement to this technical solution is that the fire channel switching plate is hinged to the side of the middle partition plate via a rotating shaft, the rotating shaft extends outward from the furnace body, and a handle is provided at the outer end of the rotating shaft.

[0012] A further improvement to this technical solution is to install a front feeding hopper door on the front side of the furnace body and an upper feeding door on the upper side of the furnace body.

[0013] A further improvement to this technical solution is that the inner wall of the inner liner, the front partition, and the middle partition are coated with fire-resistant cement; and a drawer is installed at the bottom of the grate.

[0014] Due to the adoption of the above technical solution, the technical effects achieved by this utility model are as follows:

[0015] The boiler of this invention features a three-pass flow channel and a waste heat recovery structure, which allows hot air to stay in the furnace for a longer time, thereby improving the utilization rate of heat.

[0016] The boiler of this utility model is equipped with a fire channel switching plate. By rotating the fire channel switching plate, the flow channel can be switched, allowing hot air to flow through different channels, thereby realizing the switching between energy-saving mode and rapid heating mode. This makes the boiler more flexible to use and has a better performance, as the mode can be adjusted as needed.

[0017] This invention is equipped with an oxygen distribution box, which can supplement oxygen into the combustion chamber and improve the combustion rate of fuel.

[0018] This utility model is equipped with a front feeding chamber door and an upper feeding chamber door, which makes feeding convenient and allows for the addition of more materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is a flue gas flow diagram of two modes of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the present invention;

[0023] Among them, 1. outer liner, 2. inner liner, 3. front partition, 4. middle partition, 5. rear partition, 6. combustion chamber, 7. cooking opening, 8. flue switching plate, 9. second pass flue, 10. third pass flue, 11. grate, 12. oxygen distribution box, 13. handle, 14. front charging bin door, 15. upper charging bin door, 16. fireproof cement, 17. drawer, 18. adjustable air cover; 19. kang flue. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] This utility model is a novel water-heating boiler with adjustable operating modes. It is a domestic boiler with dual functions of heating and cooking. The front side is defined as the direction of flue gas flow.

[0027] The boiler mainly consists of a furnace body and a chimney. The furnace body includes an outer liner 1 and an inner liner 2. A grate 11 is installed at the lower part of the combustion chamber inside the furnace body. The grate supports fuel such as coal. A crank handle is installed on the outer side of the grate, allowing ash to fall off. A drawer is located below the grate to collect the ash. The drawer can be pulled out periodically for cleaning. The above describes the conventional components and structure of the boiler. Since the specific structural details are unknown to those skilled in the art, they will not be elaborated upon here.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the boiler has a front baffle 3, a middle baffle 4, and a rear baffle 5 arranged sequentially on the inner wall of the inner liner 2. These three baffles are staggered from front to back, forming a three-pass flow channel, referred to as the first pass, second pass, and third pass, respectively. Referring to the attached diagram, the front baffle 3 is fixed at the top, the middle baffle 4 is fixed at the bottom and extends upwards to near the upper wall of the inner liner 2, and the rear baffle 5 is fixed at the top. This three-pass flow channel allows the flue gas to remain in the furnace for a longer time, thereby improving heat utilization.

[0029] To facilitate fuel feeding, this boiler is equipped with two fuel feeding doors: a front fuel feeding door 14 on the front side of the boiler body and an upper fuel feeding door 15 on the upper side of the boiler body. Because of the upper fuel feeding door 15, fuel can be added from above, allowing for the addition of more fuel compared to boilers with only a front fuel feeding door.

[0030] A cooking opening 7 is also provided on the upper side of the furnace body, where cooking activities such as cooking and boiling water are carried out. The chimney is fixedly installed on the rear side of the furnace body, and the rear side of the rear partition 5 corresponds to the chimney inlet.

[0031] A through hole is provided on the middle partition 4 as a second-pass flue, and a through hole is provided on the rear partition 5 as a third-pass flue. A fire channel switching plate 8 is installed on the rear side of the middle partition 4 via a hinged connection, thereby switching between cooking and heating modes; or between energy-saving and rapid-heating modes. Specifically... Figure 3 As shown. The energy-saving mode extends the flue gas flow path within the boiler, maximizing heat utilization. The rapid-heating mode shortens the flue gas flow path, resulting in slightly lower heat utilization. Specifically, the flue switching plate 8 is located in the second pass between the middle and rear partitions. The flue switching plate 8 can be rotated to control the opening and closing of the outlet of the second pass flue pipe 9. When the flue switching plate 8 closes the outlet of the second pass flue pipe 9, the flue gas flows through the three passes sequentially. In this mode, the flue gas stays in the furnace for a longer time, which is the energy-saving mode, also known as the cooking mode, and is more suitable for cooking. When the flue switching plate 8 opens the outlet of the second pass flue pipe 9, it simultaneously blocks the second pass to a certain extent from the middle. At this time, most of the flue gas can directly enter the third pass flue pipe 10 through the second pass flue pipe 9 and then into the chimney. In this mode, the flue gas is in a rapid flow state, and fuel combustion is vigorous, which is the rapid-heating mode, also known as the heating mode, and is more suitable for heating. The aforementioned second and third pass flue pipes, in conjunction with the use of the fire channel switching plate, enable the flue gas to have a short flow path and high flow rate in rapid heating mode, thus achieving rapid heating and temperature rise.

[0032] The specific structure of the flue switching plate 8 is as follows: a rotating shaft is set at the lower part of the flue switching plate 8, and the rotating shaft is hinged to the side of the middle partition plate 4 to realize the rotation reversal. Furthermore, the rotating shaft of the flue switching plate 8 extends outward from the furnace body and a handle 13 is set at the outer end of the rotating shaft. The flue switching plate 8 is reversed by shaking the handle 13.

[0033] To ensure a sufficient oxygen supply for repeated fuel combustion within the combustion chamber 6, several oxygen distribution boxes 12 are installed in the upper part of the combustion chamber. Each oxygen distribution box 12 has a long, rectangular structure that extends outwards and communicates with the outside. The opening size of each oxygen distribution box 12 can be adjusted using an adjustable air distribution cover. Oxygen can be supplied to the combustion chamber 6 through the oxygen distribution boxes 12. The oxygen distribution box 12 is roughly cylindrical, with multiple through holes on its surface.

[0034] The inner wall of the boiler's inner liner, the front baffle 3, and the middle baffle 4 are coated with fire-resistant cement 16.

[0035] A flue 19 can be installed on the rear side of the furnace body to connect the kang (heated brick bed) in residential houses.

[0036] This utility model boiler improves heat utilization efficiency through a three-pass flow channel design and a waste heat recovery structure. Perforations in the middle and rear baffles serve as return flue pipes, and the flow channel switching plate allows for switching between energy-saving and rapid heating modes. In rapid heating mode, the short flue gas path and high flow velocity result in rapid temperature rise, achieving fast heating in heating mode.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel water-heating boiler with adjustable operating modes, comprising a boiler body and a chimney, wherein the boiler body comprises an outer liner (1) and an inner liner (2), characterized in that: A front partition (3), a middle partition (4), and a rear partition (5) are arranged alternately on the inner wall of the inner liner (2) to form a three-pass flow channel; the front partition (3) is fixed to the upper part of the combustion chamber (6); the rear side of the rear partition (5) corresponds to the inlet of the chimney; a through hole is provided on the middle partition (4) as the second pass flue; a through hole is provided on the rear partition (5) as the third pass flue; a fire channel switching plate (8) for switching between cooking mode and heating mode is hinged to the rear side of the middle partition (4); a feeding bin door is provided on the surface of the furnace body, and a cooking opening (7) is provided above the combustion chamber (6); a grate (11) is provided at the lower part of the combustion chamber (6).

2. The novel adjustable-mode water boiler according to claim 1, characterized in that: The flue switch plate (8) is located in the second pass between the middle partition and the rear partition. The flue switch plate controls the opening and closing of the outlet of the second pass flue.

3. A novel adjustable-mode water boiler according to claim 1, characterized in that: The rear partition bends towards the chimney.

4. A novel adjustable-mode water boiler according to claim 1, characterized in that: Several oxygen distribution boxes (12) are provided in the upper part of the combustion chamber (6). The oxygen distribution boxes (12) are connected to the outside and the opening size is adjusted by an adjustable air distribution cover (18).

5. A novel adjustable-mode water boiler according to claim 1, characterized in that: The fire channel switching plate (8) is hinged to the side of the middle partition plate (4) by a rotating shaft, the rotating shaft extends outward from the furnace body and a handle (13) is provided at the outer end of the rotating shaft.

6. A novel adjustable-mode water boiler according to claim 1, characterized in that: A front feeding hopper door (14) is provided on the front side of the furnace body, and an upper feeding hopper door (15) is provided on the upper side of the furnace body.

7. A novel adjustable-mode water boiler according to claim 1, characterized in that: The inner wall of the inner liner, the front partition (3) and the middle partition (4) are coated with fireproof cement (16); a drawer (17) is provided at the bottom of the grate (11).

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