Biomass gas boiler stable combustion device

Abstract

The utility model discloses a biomass gas boiler stable combustion device which comprises a boiler body, refractory concrete is laid along the inner wall of the boiler body, a steam pocket is arranged at the top of the boiler body, the right side of the top of the steam pocket is connected with a steam outlet pipe, and a stable combustion burner is arranged in the middle of the left side of the boiler body. The left side of the stable combustion burner is connected with a biomass gas source, the bottom of the stable combustion burner is connected with a compressed air outlet pipe, the other end of the compressed air outlet pipe is connected with a compressed air tank, a conveying pump is installed on the right side of the furnace body, and an outlet of the conveying pump is connected with a water outlet pipe. The other end of the water outlet pipe is connected with the middle lower portion of the right side of the steam pocket, a water tank is installed on the right side of the conveying pump, and a water inlet pipe is arranged between the conveying pump and the water tank. According to the device, biomass gas can be fully and completely combusted, the combustion efficiency is effectively guaranteed, and production is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of boilers, and in particular relates to a biomass gas boiler combustion stabilizing device. Background Art

[0002] Biomass gas is a combustible energy source that uses crop straw, forest waste, edible mushroom residue, livestock manure and all combustible materials as raw materials. However, biomass gas has a low calorific value and is not easy to burn stably and completely in the furnace, which affects the combustion efficiency. In order to ensure the stable and complete combustion of biomass gas, a biomass gas boiler stable combustion device is urgently needed in the market. Utility Model Content

[0003] In view of the shortcomings of the prior art, the inventor has developed a biomass gas boiler combustion stabilization device based on his own practical experience.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a biomass gas boiler combustion stabilization device, including a furnace body, refractory concrete is laid along the inner wall of the furnace body, a steam drum is arranged on the top of the furnace body, a steam outlet pipe is connected to the top right side of the steam drum, a combustion stabilization burner is arranged in the middle of the left side of the furnace body, the left side of the combustion stabilization burner is connected to the biomass gas source, a compressed air outlet pipe is connected to the bottom of the combustion stabilization burner, the other end of the compressed air outlet pipe is connected to a compressed air tank, a compressed air main pipe is connected to the middle and lower part of the left side of the compressed air tank, a delivery pump is installed on the right side of the furnace body, the outlet of the delivery pump is connected to a water outlet pipe, the other end of the water outlet pipe is connected to the middle and lower part of the right side of the steam drum, a water tank is installed on the right side of the delivery pump, and a water inlet pipe is arranged between the delivery pump and the water tank.

[0005] Furthermore, a combustion stabilizing connection port facing upward is provided on the left side of the combustion stabilizing burner, and the combustion stabilizing connection port is connected to the biomass gas source, a combustion hole is provided on the right side of the combustion stabilizing burner, a combustion stabilizing chamber is provided on the left side of the combustion hole, the end of the compressed air outlet pipe is connected to the bottom of the combustion stabilizing chamber, a second distribution plate is provided at the right end of the combustion stabilizing chamber, and a first distribution plate is provided at the left end, a slope is provided on the left side of the first distribution plate, and air holes for biomass gas to pass through are opened on the first distribution plate and the second distribution plate, and the air holes are evenly arranged on the distribution plates.

[0006] Furthermore, the number of the combustion holes is 5, of which 4 are symmetrically arranged on the stable combustion burner.

[0007] Furthermore, the steam outlet pipe is provided with a first automatic control valve for controlling the steam outlet volume, and the compressed air outlet pipe is provided with a second automatic control valve for controlling the air outlet volume.

[0008] Furthermore, the water inlet pipe is provided with a water inlet valve, and the water outlet pipe is provided with a water outlet valve.

[0009] Furthermore, a temperature gauge and a pressure gauge are respectively installed on the left side of the top of the steam drum.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the inventor has laid refractory concrete inside the furnace body, and the refractory concrete has good thermal insulation and heat storage effects. A stabilizing combustion chamber is arranged on the stabilizing combustion burner, and the first distribution plate and the second distribution plate are arranged at the left and right ends of the stabilizing combustion chamber respectively. When the biomass gas enters the stabilizing combustion burner through the stabilizing combustion connection port, it is evenly distributed through the first distribution plate, mixed with the compressed air delivered by the compressed air pipe in the stabilizing combustion chamber, and then evenly distributed through the second distribution plate and ejected from the combustion hole. Such a design structure can make the biomass gas fully and completely burn, effectively ensure the combustion efficiency, and be beneficial to the production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 Schematic diagram of the compressed air tank and the combustion stabilizing burner.

[0013] Figure 3 Schematic diagram of a stable combustion burner.

[0014] Figure 4 This is a cross-sectional view of the furnace body and steam drum.

[0015] Figure 5 Schematic diagram of the first distribution plate.

[0016] Figure 6 Schematic diagram of the second distribution plate.

[0017] Figure numerals: 1. furnace body, 101. refractory concrete, 2. steam drum, 3. stable combustion burner, 301. stable combustion connection port, 302. slope, 303. stable combustion chamber, 304. first distribution plate, 305. second distribution plate, 306. combustion hole, 4. thermometer, 5. pressure gauge, 6. steam outlet pipe, 7. first automatic control valve, 8. water tank, 9. water inlet pipe, 10. water inlet valve, 11. delivery pump, 12. water outlet pipe, 13. water outlet valve, 14. compressed air tank, 15. compressed air outlet pipe, 16. second automatic control valve, 17. compressed air main pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] like Figure 1 — Figure 6 As shown, a biomass gas boiler combustion stabilization device comprises a furnace body 1, refractory concrete 101 is laid along the inner wall of the furnace body 1, a steam drum 2 is arranged on the top of the furnace body 1, a steam outlet pipe 6 is connected to the top right side of the steam drum 2, a combustion stabilization burner 3 is arranged in the middle of the left side of the furnace body 1, the left side of the combustion stabilization burner 3 is connected to the biomass gas source, a compressed air outlet pipe 15 is connected to the bottom of the combustion stabilization burner 3, the other end of the compressed air outlet pipe 15 is connected to a compressed air tank 14, a compressed air main pipe 17 is connected to the middle and lower part of the left side of the compressed air tank 14, a delivery pump 11 is installed on the right side of the furnace body 1, the outlet of the delivery pump 11 is connected to a water outlet pipe 12, the other end of the water outlet pipe 12 is connected to the middle and lower part of the right side of the steam drum 2, a water tank 8 is installed on the right side of the delivery pump 11, and a water inlet pipe 9 is arranged between the delivery pump 11 and the water tank 8.

[0020] In this embodiment, the left side of the stable combustion burner 3 is provided with a stable combustion connection port 301 facing upward, and the stable combustion connection port 301 is connected to the biomass gas source. The right side of the stable combustion burner 3 is provided with a combustion hole 306, and the left side of the combustion hole 306 is provided with a stable combustion chamber 303. The end of the compressed air outlet pipe 15 is connected to the bottom of the stable combustion chamber 303. The right end of the stable combustion chamber 303 is provided with a second distribution plate 305, and the left end is provided with a first distribution plate 304. The left side of the first distribution plate 304 is provided with a slope 302. The first distribution plate 304 and the second distribution plate 305 are provided with air holes for biomass gas to pass through, and the air holes are evenly arranged on the distribution plates. The setting of the slope 302 can accelerate the flow rate of biomass gas, which is conducive to its full combustion. The compressed air delivered from the compressed air tank 14 is mixed with the biomass gas in the combustion stabilization chamber 303 and then burns from the combustion holes 306 . The compressed air can play a good role in assisting combustion, which is beneficial to the full and complete combustion of the biomass gas.

[0021] In this embodiment, the number of the combustion holes 306 is 5, wherein 4 of the combustion holes 306 are symmetrically arranged on the combustion stabilizing burner 3 .

[0022] In this embodiment, the steam outlet pipe 6 is provided with a first automatic control valve 7 for controlling the steam outlet volume, and the compressed air outlet pipe 15 is provided with a second automatic control valve 16 for controlling the air outlet volume.

[0023] In this embodiment, a water inlet valve 10 is provided on the water inlet pipe 9 , and a water outlet valve 13 is provided on the water outlet pipe 12 .

[0024] In this embodiment, a temperature gauge 4 and a pressure gauge 5 are respectively installed on the left side of the top of the steam drum 2.

[0025] As attached Figure 4 As shown, in order to more clearly show the structural relationship between the furnace body 1 and the steam drum 2, the inventor did not mark the temperature gauge 4 and the pressure gauge 5 in the attached Figure 4 middle.

[0026] When the device is used, first start the delivery pump 11 to deliver clean water in the water tank 8 to the steam drum 2 through the water inlet pipe 9 and the water outlet pipe 12. During normal production, ensure that the liquid level in the steam drum 2 is not less than 30% and not more than 80%. Then open the second automatic control valve 16, and the compressed air enters the stable combustion chamber 303 through the compressed air pipe 15, and mixes with the biomass gas, and then burns from the combustion hole 306. The compressed air can play a good role in supporting combustion, which is conducive to the full and complete combustion of the biomass gas. The biomass gas delivered from the biomass gas source station is evenly distributed through the first distribution plate 304 and the second distribution plate 305, which can make the airflow more stable, which is conducive to the full combustion of the subsequent flame.

[0027] After the boiler runs for a period of time, steam is generated in the steam drum 2. At this time, the main controller opens the first automatic control valve 7, and the steam can be transported to the next process through the steam outlet pipe 6. In normal production, the delivery pump 11 is always in working state, continuously delivering clean water to the steam drum 2.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although two embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and combinations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomass gas boiler combustion stabilization device, characterized in that: It includes a furnace body, along the inner wall of which refractory concrete is laid, a steam drum is arranged on the top of the furnace body, a steam outlet pipe is connected to the right side of the top of the steam drum, a combustion stabilizing burner is arranged in the middle of the left side of the furnace body, the left side of the combustion stabilizing burner is connected to the biomass gas source, a compressed air outlet pipe is connected to the bottom of the combustion stabilizing burner, the other end of the compressed air outlet pipe is connected to a compressed air tank, a compressed air main pipe is connected to the lower middle part of the left side of the compressed air tank, a delivery pump is installed on the right side of the furnace body, the outlet of the delivery pump is connected to a water outlet pipe, the other end of the water outlet pipe is connected to the lower middle part of the right side of the steam drum, a water tank is installed on the right side of the delivery pump, and a water inlet pipe is arranged between the delivery pump and the water tank.

2. A biomass gas boiler combustion stabilization device according to claim 1, characterized in that: A combustion stabilizing connection port facing upward is arranged on the left side of the combustion stabilizing burner, and the combustion stabilizing connection port is connected to the biomass gas source. A combustion hole is arranged on the right side of the combustion stabilizing burner, and a combustion stabilizing chamber is arranged on the left side of the combustion hole. The end of the compressed air outlet pipe is connected to the bottom of the combustion stabilizing chamber, and a second distribution plate is arranged at the right end of the combustion stabilizing chamber, and a first distribution plate is arranged at the left end. A slope is arranged on the left side of the first distribution plate, and air holes for biomass gas to pass through are opened on the first distribution plate and the second distribution plate, and the air holes are evenly arranged on the distribution plate.

3. A biomass gas boiler combustion stabilization device according to claim 2, characterized in that: The number of the combustion holes is 5, of which 4 are symmetrically arranged on the stable combustion burner.

4. The biomass gas boiler combustion stabilization device according to claim 1, characterized in that: The steam outlet pipe is provided with a first automatic control valve for controlling the steam outlet volume, and the compressed air outlet pipe is provided with a second automatic control valve for controlling the air outlet volume.

5. The biomass gas boiler combustion stabilization device according to claim 1, characterized in that: The water inlet pipe is provided with a water inlet valve, and the water outlet pipe is provided with a water outlet valve.

6. The biomass gas boiler combustion stabilization device according to claim 1, characterized in that: A temperature gauge and a pressure gauge are respectively installed on the left side of the top of the steam drum.

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