Horizontal biomass hot water boiler

Abstract

The utility model discloses a horizontal biomass hot water boiler which comprises a heating cavity and a combustion chamber which are sequentially arranged from top to bottom, a water inlet and a water outlet are formed in the top of the heating cavity, a flue coil communicated with the combustion chamber is arranged in the heating cavity, a biomass combustor is arranged in the combustion chamber, and a water inlet and a water outlet are formed in the top of the combustion chamber. A water quality purification device is arranged in the middle of a water supply pipe externally connected with the water inlet, an electric field box is arranged at the position of an air inlet of the flue coil, high-temperature-resistant polar plates are arranged on the two sides of the inner wall of the electric field box, and a flue gas channel is formed between the high-temperature-resistant polar plates. The problem that an existing horizontal biomass hot water boiler is low in heat exchange rate after being used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the field of boilers, in particular to a horizontal biomass hot water boiler. Background Art

[0002] Biomass hot water boiler is a hot water boiler that uses biomass energy as fuel. It has the advantages of high efficiency, energy saving and environmental protection, so it is very popular.

[0003] It is mainly used to heat water. The specific structure includes a biomass combustion chamber and a heating chamber arranged on the combustion chamber. The high-temperature flue gas generated in the combustion chamber is used to heat the water in the heating chamber. For details, please refer to the scheme disclosed in the utility model patent with application number "CN201621081686.2". However, there are some problems with the above structure. That is, after long-term use, it is found that the heat exchange rate is low. After research, it is found that it is mainly caused by scaling on the surface of the flue coil and tar adhesion in the flue coil. Therefore, the existing equipment is improved. Utility Model Content

[0004] The utility model aims to provide a horizontal biomass hot water boiler to solve the problem that the existing horizontal biomass hot water boiler has a low heat exchange rate after being used for a long time.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A horizontal biomass hot water boiler comprises a heating chamber and a combustion chamber arranged in sequence from top to bottom, a water inlet and a water outlet are arranged on the top of the heating chamber, a flue coil connected to the combustion chamber is arranged in the heating chamber, a biomass burner is arranged in the combustion chamber, a water purification device is arranged in the middle of the water supply pipe connected to the water inlet, an electric field box is arranged at the air inlet of the flue coil, high temperature resistant plates are arranged on both sides of the inner wall of the electric field box, and a flue gas channel is formed between the high temperature resistant plates.

[0007] A water purification device is installed in the middle of the water supply pipe to purify the water quality, greatly reducing the scaling speed and amount. Then an electric field box is installed at the air inlet of the flue coil to adsorb the tar in the flue gas through the action of the electric field to prevent it from entering the flue coil. Through these two improvements, the problem of low heat exchange rate of the horizontal biomass hot water boiler after long-term use is improved.

[0008] As a further preferred embodiment of the present invention, the cavity wall of the heating cavity and the chamber wall of the combustion chamber are both heat-insulating walls.

[0009] Reduce energy loss.

[0010] As a further preferred embodiment of the present invention, the outlet of the flue coil is connected to the flue gas duct outside the furnace, and the air outlet end of the flue gas duct outside the furnace is connected to the preheating sleeve, which is sleeved on the middle part of the water supply pipe at the water inlet, and the preheating sleeve is located at the rear end of the water purification device.

[0011] The waste heat of flue gas can be utilized to improve the energy utilization rate.

[0012] As a further preferred embodiment of the present invention, the surface of the flue coil is evenly provided with short heat-conducting columns protruding outward.

[0013] The heat-conducting short column can effectively improve the heat exchange efficiency.

[0014] As a further preferred embodiment of the present invention, flue gas velocity reduction baffles are alternately arranged in the flue gas passage between the high temperature resistant plates.

[0015] The flue gas velocity reduction barrier can reduce the flue gas passage velocity between the high temperature resistant plates and improve the tar adsorption rate.

[0016] Compared with the prior art, the utility model can achieve at least one of the following beneficial effects:

[0017] 1. A water purification device is installed in the middle of the water supply pipe to purify the water quality, greatly reducing the scaling speed and amount. Then an electric field box is installed at the air inlet of the flue coil. The tar in the flue gas is adsorbed by the electric field to prevent it from entering the flue coil. Through these two improvements, the problem of low heat exchange rate of the horizontal biomass hot water boiler after long-term use is improved.

[0018] 2. Reduce energy loss.

[0019] 3. It can utilize the waste heat of flue gas and improve the energy utilization rate.

[0020] 4. The heat-conducting short column can effectively improve the heat exchange efficiency.

[0021] 5. The flue gas speed reduction barrier can reduce the speed of the flue gas passing through the flue gas channel between the high temperature resistant plates and increase the tar adsorption rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 for Figure 1 Side view of.

[0024] Figure 3 It is a cross-sectional view of the electric field box of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Specific embodiment 1:

[0032] Figure 1 , Figure 2 , Figure 3 A horizontal biomass hot water boiler is shown, comprising a heating chamber 1 and a combustion chamber 2 arranged in sequence from top to bottom, a water inlet 3 and a water outlet 4 are arranged on the top of the heating chamber 1, a flue coil 5 connected to the combustion chamber 2 is arranged in the heating chamber 1, a biomass burner is arranged in the combustion chamber 2, and the characteristic is that a water purification device 6 is arranged in the middle of the water supply pipe connected to the water inlet 3, an electric field box 7 is arranged at the air inlet of the flue coil 5, high temperature resistant plates 8 are arranged on both sides of the inner wall of the electric field box 7, and a flue gas channel is provided between the high temperature resistant plates 8.

[0033] A water purification device is installed in the middle of the water supply pipe to purify the water quality, greatly reducing the scaling speed and amount. Then an electric field box is installed at the air inlet of the flue coil to adsorb the tar in the flue gas through the action of the electric field to prevent it from entering the flue coil. Through these two improvements, the problem of low heat exchange rate of the horizontal biomass hot water boiler after long-term use is improved. Specific embodiment 2:

[0035] This embodiment further illustrates the heating chamber 1 on the basis of the specific embodiment 1, wherein the chamber wall of the heating chamber 1 and the chamber wall of the combustion chamber 2 are both heat-insulating walls.

[0036] Reduce energy loss. Specific embodiment 3:

[0038] This embodiment further illustrates the flue coil 5 on the basis of the specific embodiment 1. The outlet of the flue coil 5 is connected to the flue gas duct 9 outside the furnace, and the air outlet end of the flue gas duct 9 outside the furnace is connected to the preheating sleeve 10. The preheating sleeve 10 is connected to the middle part of the water supply pipe at the water inlet, and the preheating sleeve 10 is located at the rear end of the water purification device 6.

[0039] The waste heat of flue gas is utilized to improve energy utilization rate. Specific embodiment 4:

[0041] This embodiment further illustrates the flue coil 5 on the basis of the specific embodiment 1. The surface of the flue coil 5 is evenly provided with short heat-conducting columns protruding outward.

[0042] The heat-conducting short column can effectively improve the heat exchange efficiency. Specific embodiment 5:

[0044] This embodiment further illustrates the high temperature resistant plates 8 on the basis of the specific embodiment 1. The flue gas passages between the high temperature resistant plates 8 are alternately provided with flue gas velocity reduction baffles 11 .

[0045] The flue gas velocity reduction barrier can reduce the flue gas passage velocity between the high temperature resistant plates and improve the tar adsorption rate.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A horizontal biomass hot water boiler, comprising a heating chamber (1) and a combustion chamber (2) arranged in sequence from top to bottom, the top of the heating chamber (1) being provided with a water inlet (3) and a water outlet (4), the heating chamber (1) being provided with a flue coil (5) communicating with the combustion chamber (2), the combustion chamber (2) being provided with a biomass burner, characterized in that: A water purification device (6) is provided in the middle of a water supply pipe externally connected to the water inlet (3), an electric field box (7) is provided at the air inlet of the flue coil (5), high temperature resistant plates (8) are provided on both sides of the inner wall of the electric field box (7), and a flue gas channel is provided between the high temperature resistant plates (8).

2. The horizontal biomass hot water boiler according to claim 1, characterized in that: The cavity wall of the heating cavity (1) and the cavity wall of the combustion chamber (2) are both heat-insulating walls.

3. The horizontal biomass hot water boiler according to claim 1, characterized in that: The outlet of the flue coil (5) is connected to the flue gas pipe (9) outside the furnace, and the gas outlet end of the flue gas pipe (9) outside the furnace is connected to the preheating sleeve (10). The preheating sleeve (10) is sleeved on the middle part of the water supply pipe at the water inlet. The preheating sleeve (10) is located at the rear end of the water purification device (6).

4. The horizontal biomass hot water boiler according to claim 1, characterized in that: The surface of the flue coil (5) is evenly provided with short heat-conducting columns protruding outwards.

5. The horizontal biomass hot water boiler according to claim 1, characterized in that: Smoke speed reduction baffles (11) are arranged in a staggered manner in the smoke passage between the high temperature resistant plates (8).

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