Biomass heat supply boiler facilitating ash removal
By using a movable adjustable plate to seal the ash discharge hole in the biomass heating boiler, the problems of high-temperature ash falling and backflow of airflow were solved, achieving safe ash removal and stable combustion, and improving the boiler's operating efficiency.
Patent Information
- Application Number
- CN202423168107.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
When cleaning ash from a biomass boiler, the ash discharge hole is left open, which can cause high-temperature ash to fall and pose a safety risk. Backflow of air can also disrupt the combustion process and cause fluctuations in heat production efficiency.
Design a biomass heating boiler that facilitates ash removal. It adopts a horizontally movable regulating plate, and the regulating hole and the ash drop hole are staggered and sealed to prevent high-temperature ash from falling and airflow from flowing back, thus ensuring ash removal safety and stable combustion.
It effectively prevents burns from high-temperature ash, maintains normal combustion order in the combustion chamber, improves the stability of heat production efficiency of biomass boilers, and reduces fluctuations.
Smart Images
Figure CN223564314U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of heat supply boiler, specifically, a kind of biomass heat supply boiler of ash removal is convenient. BACKGROUND
[0002] As the key equipment for converting biomass energy into heat energy, the performance and operating efficiency of biomass heat supply boiler is crucial. Biomass fuel is mainly composed of various plant wastes such as straw, sawdust, branches, etc. These fuels begin to burn under suitable temperature and sufficient oxygen environment after being put into the combustion chamber of the boiler. During the combustion process, the fuel gradually decomposes and releases heat energy, providing the required heat for the user.
[0003] The boiler usually has a dust fall plate with multiple dust fall holes distributed on it. Its function is to allow the ash after combustion to fall into the ash storage cavity below through these holes under the action of gravity, and then to clean the ash from the ash storage cavity.
[0004] However, when cleaning the ash, if the dust fall holes remain open, the hot ash will continue to fall, posing a safety risk to the ash cleaning staff, and in severe cases, it may cause burns. In addition, air flow will flow back into the combustion chamber through the dust fall holes, which will disrupt the normal combustion order of the fuel in the combustion chamber, causing fluctuations in the heat production efficiency of the biomass boiler. SUMMARY
[0005] To solve the problem of the continuous opening of the dust fall holes during ash cleaning in the prior art, the hot ash continues to fall, posing a safety risk to the ash cleaning staff, and the air flow flows back into the combustion chamber through the dust fall holes, disrupting the normal combustion order of the biomass fuel in the combustion chamber. The utility model provides a biomass heat supply boiler convenient for ash cleaning.
[0006] To solve the above technical problems, the utility model solves them by the following technical solutions:
[0007] A biomass heat supply boiler convenient for ash cleaning, comprising a boiler body and a dust fall plate, the dust fall plate has multiple dust fall holes, the dust fall plate separates the boiler body into an upper combustion chamber and a lower ash storage cavity, the ash storage cavity has a horizontally movable adjusting plate with adjusting holes corresponding to the dust fall holes, and the adjusting holes are offset from the dust fall holes during ash cleaning.
[0008] In normal combustion operation, the adjusting hole on the adjusting plate is aligned with the ash falling hole on the ash falling plate, and the ash after combustion can smoothly fall into the ash storage cavity through the ash falling hole and the adjusting hole. When it is necessary to carry out the ash cleaning operation, the adjusting plate is horizontally moved to dislocate the adjusting hole and the ash falling hole, and the adjusting plate will close the ash falling hole at this time. In this way, the high-temperature ash in the combustion cavity can be prevented from continuing to fall, and the airflow can be prevented from flowing back into the combustion cavity through the ash falling hole, thereby ensuring the safety of the ash cleaning operation and the normal operation of the combustion cavity. The above-mentioned arrangement can not only avoid the risk of burns caused by the falling of high-temperature ash to the ash cleaning personnel, but also prevent the airflow from flowing back, thereby maintaining the normal combustion order in the combustion cavity, stabilizing the heat production efficiency of the biomass boiler, and reducing fluctuations.
[0009] As preferred, an ash cleaning opening is formed on the front side wall of the boiler body, and mounting plates are fixed on the left and right inner side walls of the boiler body, and the adjusting plate is lapped on the mounting plates.
[0010] The mounting plates are fixed on the left and right inner side walls of the boiler body, thereby providing stable support and lapping positions for the adjusting plate. When the ash cleaning operation is carried out, the adjusting plate can be stably horizontally moved along the mounting plates, thereby ensuring that the adjusting hole is accurately dislocated or aligned with the ash falling hole.
[0011] As preferred, a spring is fixed on the rear inner side wall of the boiler body, and the other end of the spring abuts against the side wall of the adjusting plate, and the spring is in a compressed state when the ash falling hole is connected with the adjusting hole.
[0012] When the ash falling hole is connected with the adjusting hole, the spring is in a compressed state. When the ash cleaning operation is required, the adjusting plate is no longer subjected to external force, and the compressed spring will be stretched and push the adjusting plate to move, so that the adjusting hole is dislocated with the ash falling hole, thereby realizing that the adjusting plate automatically closes the ash falling hole.
[0013] As preferred, a collecting drawer is arranged below the adjusting plate in the ash storage cavity, the collecting drawer can be taken out of the ash storage cavity from the ash cleaning opening, and a stand is fixed on the lower end surface of the adjusting plate; when the collecting drawer is placed into the ash storage cavity, the stand abuts against the outer side wall of the collecting drawer, and the ash falling hole is connected with the adjusting hole.
[0014] In the normal operation state, when the collecting drawer is placed into the ash storage cavity, the stand abuts against the outer side wall of the collecting drawer, so that the position of the adjusting plate is fixed, and at this time, the ash falling hole is connected with the adjusting hole, and the ash can smoothly fall and be collected in the collecting drawer. When the ash needs to be cleaned, the collecting drawer is taken out, the stand loses the support, and under the action of the spring, the adjusting plate moves to close the ash falling hole.
[0015] As preferred, the front-to-rear length of the collecting drawer is greater than that of the ash falling plate; when the adjusting plate closes the ash falling hole by moving outward, the ash falling hole farthest from the ash cleaning opening is still directly above the collecting drawer.
[0016] The front-to-rear length of the collection drawer is greater than the front-to-rear length of the ash falling plate. In the ash cleaning operation, the collection drawer stops receiving the ash only after the adjusting plate completely closes the ash falling hole, preventing the collection drawer from moving out of the ash receiving position when the ash falling hole is not completely closed, and avoiding the ash from falling into the ash storage cavity and polluting the internal environment of the ash storage cavity.
[0017] As a preferred embodiment, a positioning seat is fixed on the outer side wall of the boiler body, and a positioning groove is formed in the upper end surface of the positioning seat. An installation column is fixed on the outer side wall of the collection drawer, and a limiting rod rotatable along the installation column is sleeved on the installation column. The limiting rod can be rotated into the positioning groove.
[0018] When the collection drawer is placed in the ash storage cavity, the limiting rod on the installation column of the outer side wall of the collection drawer is rotated to fall into the positioning groove in the upper end surface of the positioning seat. In this way, the cooperation of the limiting rod and the positioning groove can limit the movement of the collection drawer, so that the collection drawer can maintain a stable position during operation.
[0019] As a preferred embodiment, an observation window is formed in the side wall of the collection drawer.
[0020] The observation window formed in the side wall of the collection drawer allows the operator to directly observe the ash accumulation inside the collection drawer without opening the collection drawer, so that the operator can clean the ash in a timely manner. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the biomass heating boiler in the embodiment;
[0022] Figure 2 FIG. 2 is a schematic diagram of the internal structure of the biomass heating boiler in the embodiment along the left-right direction;
[0023] Figure 3 FIG. 3 is a schematic diagram of the internal structure of the biomass heating boiler in the embodiment along the front-rear direction;
[0024] Figure 4 FIG. 4 is a schematic diagram of the internal structure of the biomass heating boiler in the embodiment along the horizontal direction;
[0025] Figure 5 FIG. 5 is a schematic diagram of the adjusting plate structure in the embodiment.
[0026] The names of the parts referred to by the respective numerical designations in the drawings are as follows:
[0027] 110, boiler body; 1101, combustion cavity; 1102, ash storage cavity; 1103, mounting plate; 1104, feed inlet; 120, ash falling plate; 1201, ash falling hole; 130, adjusting plate; 1301, adjusting hole; 1302, vertical column; 140, spring; 150, collection drawer; 160, positioning seat; 1601, positioning groove; 170, installation column; 1701, limiting rod. Detailed Implementation
[0028] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.
[0029] Example
[0030] like Figures 1-5 As shown, this embodiment provides a biomass heating boiler that is easy to clean, including components such as boiler body 110, ash removal plate 120, regulating plate 130, and collection drawer 150.
[0031] The boiler body 110 is internally divided into a combustion chamber 1101 and an ash storage chamber 1102, which are arranged vertically, by an ash collection plate 120. A feed inlet 1104 is used to feed biomass fuel into the combustion chamber 1101. Multiple ash collection holes 1201 are evenly distributed on the ash collection plate 120. The ash storage chamber 1102 is equipped with a horizontally movable adjusting plate 130, which has adjusting holes 1301 corresponding to the ash collection holes 1201.
[0032] A cleaning port is provided on the front side wall of the boiler body 110, and mounting plates 1103 are fixed on the left and right inner side walls. An adjusting plate 130 is attached to the mounting plates 1103. A spring 140 is fixed on the rear inner side wall, and the other end of the spring 140 abuts against the side wall of the adjusting plate 130.
[0033] The ash storage chamber 1102 is equipped with a collection drawer 150 located below the adjusting plate 130. A column 1302 is fixed to the lower end face of the adjusting plate 130. A mounting column 170 is fixed to the outer wall of the collection drawer 150, and a limiting rod 1701 that can rotate along the mounting column 170 is sleeved on the mounting column 170. A positioning seat 160 is fixed to the outer wall of the boiler body 110, and a positioning groove 1601 is opened on the upper end face of the positioning seat 160. The front-to-back length of the collection drawer 150 is greater than the front-to-back length of the ash discharge plate 120, and an observation window (shown in the figure) is opened on the side wall of the collection drawer 150.
[0034] Operating principle and process:
[0035] During normal combustion, the adjustment hole 1301 on the adjustment plate 130 is aligned and connected with the ash discharge hole 1201 on the ash discharge plate 120, allowing the ash to fall smoothly through the ash discharge hole 1201 and the adjustment hole 1301 into the collection drawer 150 in the ash storage chamber 1102. At this time, the spring 140 is in a compressed state.
[0036] When the ash cleaning operation is needed, the collection drawer 150 is pulled out, the stand column 1302 loses the support of the collection drawer 150, the compressed spring 140 is stretched and pushes the adjusting plate 130 to move horizontally, the adjusting hole 1301 is misaligned with the ash falling hole 1201, the adjusting plate 130 closes the ash falling hole 1201, preventing the high-temperature ash in the combustion chamber 1101 from falling continuously, and preventing the airflow from flowing back into the combustion chamber 1101 through the ash falling hole 1201.
[0037] In the ash cleaning operation, since the front and back lengths of the collection drawer 150 are greater than the front and back lengths of the ash falling plate 120, the collection drawer 150 stops receiving ash only after the adjusting plate 130 completely closes the ash falling hole 1201, preventing the collection drawer 150 from moving out of the ash receiving position when the ash falling hole 1201 is not completely closed, avoiding the ash from falling into the ash storage chamber 1102 and polluting the internal environment of the ash storage chamber 1102. When the collection drawer 150 is placed into the ash storage chamber 1102, the limiting rod 1701 installed on the column 170 on the outer side wall of the collection drawer 150 is rotated to fall into the positioning groove 1601 on the upper end surface of the positioning seat 160, limiting the movement of the collection drawer 150. The worker can directly observe the ash accumulation inside through the observation window on the side wall of the collection drawer 150 and clean it in time.
[0038] By controlling the adjusting plate 130 to close the ash falling hole 1201, the risk of burns caused by the falling of high-temperature ash on the ash cleaning personnel is avoided. At the same time, the backflow of the airflow is effectively prevented, the normal combustion order in the combustion chamber 1101 is maintained, the heat production efficiency of the biomass boiler is stabilized, and the fluctuation is reduced.
[0039] In summary, the above is only a preferred embodiment of the present embodiment, and any changes and modifications made within the scope of the patent application of the present embodiment should be included in the scope of the present patent.
Claims
1. A biomass heating boiler facilitating ash removal, comprising a boiler body (110) and an ash falling plate (120), a plurality of ash falling holes (1201) being formed in the ash falling plate (120), characterized in that: The ash falling plate (120) divides the boiler body (110) into the combustion chamber (1101) and the ash storage chamber (1102) arranged in upper and lower positions, the ash storage chamber (1102) is provided with the adjusting plate (130) which can move horizontally, the adjusting plate (130) is provided with the adjusting hole (1301) corresponding to the ash falling hole (1201), when the ash cleaning operation is performed, the adjusting hole (1301) is dislocated with the ash falling hole (1201), and the adjusting plate (130) closes the ash falling hole (1201).
2. The biomass-fired heating boiler according to claim 1, characterized in that: The ash cleaning hole is arranged on the front side wall of the boiler body (110), and the mounting plate (1103) is fixed on the left and right inner side walls of the boiler body (110), and the adjusting plate (130) is overlapped on the mounting plate (1103).
3. The biomass-fired heating boiler of claim 2, wherein: The spring (140) is fixed on the rear inner side wall of the boiler body (110), and the other end of the spring (140) abuts against the side wall of the adjusting plate (130), when the ash falling hole (1201) is communicated with the adjusting hole (1301), the spring (140) is in a compressed state.
4. The biomass-fired heating boiler of claim 3, wherein: The collecting drawer (150) is arranged below the adjusting plate (130) in the ash storage chamber (1102), the collecting drawer (150) can be separated from the ash storage chamber (1102) through the ash cleaning hole, and the vertical column (1302) is fixed on the lower end surface of the adjusting plate (130); when the collecting drawer (150) is placed into the ash storage chamber (1102), the vertical column (1302) abuts against the outer side wall of the collecting drawer (150), and the ash falling hole (1201) is communicated with the adjusting hole (1301).
5. The biomass-fired heating boiler of claim 4, wherein: The front and rear lengths of the collecting drawer (150) are greater than the front and rear lengths of the ash falling plate (120); when the ash falling hole (1201) is closed by the adjusting plate (130) when the collecting drawer (150) moves outward, the ash falling hole (1201) farthest from the ash cleaning hole is still above the collecting drawer (150).
6. The biomass-fired heating boiler of claim 4, wherein: The positioning seat (160) is fixed on the outer side wall of the boiler body (110), the positioning groove (1601) is arranged on the upper end surface of the positioning seat (160), the mounting column (170) is fixed on the outer side wall of the collecting drawer (150), the limiting rod (1701) which can rotate along the mounting column (170) is sleeved on the mounting column (170), and the limiting rod (1701) can rotate into the positioning groove (1601).
7. The biomass-fired heating boiler of claim 4, wherein: The observation window is arranged on the side wall of the collecting drawer (150).