Phase change heat storage type biomass heating boiler

Abstract

The utility model discloses a phase change heat accumulating type biomass heating boiler which comprises a boiler body, a combustion chamber is arranged at the lower middle end in the boiler body, and a water tank and an annular phase change heat accumulator are arranged at the top of the combustion chamber. Ash in the combustion chamber enters a space on the lower side of the lower sieve plate through through holes of the upper sieve plate and the lower sieve plate when the upper sieve plate swings back and forth, and then is pushed into the ash collecting drawer by the push plate, so that the ash in the combustion chamber is cleaned, and the situation that combustion and filling work in the combustion chamber is affected due to continuous accumulation of the ash is avoided; the smoke prevention mechanism is arranged on the right side in the boiler body, so that smoke generated in the combustion chamber can be sent into the isolation box by the air blower through the oxygen supply controller, and harmful gas and substances in the smoke are left in the isolation box and prevented from being diffused to the outside through filtration of a sponge block and a filter cloth bag; the pollution to the surrounding environment is reduced, and the influence on the normal work of surrounding personnel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to heating boilers, in particular to a phase-change heat storage type biomass heating boiler. Background Art

[0002] Phase change thermal storage biomass heating boiler is a new type of energy conversion equipment, which mainly uses the latent heat of phase change materials to realize the storage and utilization of thermal energy. The working principle of this equipment is to convert the heat energy generated by biomass combustion into latent heat through the heat absorption and heat release process of phase change materials, and then release the heat energy through the heat release process of phase change materials for heating or other purposes.

[0003] Existing heating boilers, such as the Chinese utility model patent with patent number: CN201721387857.9, discloses "A biomass boiler with plate heat exchange and reverse combustion". In this device, the rectangular flue gas channel and the rectangular heat exchanger are arranged at intervals, the upper smoke chamber is arranged on the left and right sides of the upper partition of the smoke chamber, the lower smoke chamber is arranged on the left and right sides of the lower partition of the smoke chamber, the upper partition of the smoke chamber is arranged on the inner wall of the water jacket and the upper end of the second rectangular heat exchanger from the left, and the lower partition of the smoke chamber is arranged on the inner wall of the water jacket and the lower end of the second rectangular heat exchanger from the right; the combustion is sufficient and the smoke and dust separation effect is good, which solves the problem of excessive pollutants; the fuel is widely used, and cheap low-density biomass fuel can be used, which is safe and efficient.

[0004] Although the above device has certain advantages, it still has certain defects:

[0005] 1. The device does not intermittently remove the ash inside the combustion chamber when burning biomass, so as to facilitate the continued addition of biomass for combustion and avoid the ash affecting the stability of the combustion temperature of the device.

[0006] 2. The device does not fully treat the smoke generated during the combustion process. When biomass is burned, some harmful gases and substances may be produced due to various reasons. Failure to conduct comprehensive filtering treatment will cause pollution or impact on the surrounding environment and staff. Utility Model Content

[0007] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a phase change thermal storage biomass heating boiler.

[0008] The utility model is implemented in this way, constructing a phase change heat storage type biomass heating boiler, the device includes a boiler body, a combustion chamber is provided at the middle and lower end of the interior of the boiler body, and a water tank and an annular phase change heat storage device are provided on the top of the combustion chamber, and a collecting hopper is provided on the left side of the boiler body;

[0009] A ash cleaning mechanism is provided at the lower end of the boiler body; a smoke prevention mechanism is provided at the right end of the boiler body;

[0010] The ash cleaning mechanism includes: a mounting plate, a mounting plate is provided at the lower front end of the boiler body, the left through groove of the mounting plate is slidably connected to the ash collecting drawer, the right sliding groove of the mounting plate is slidably connected to the groove at the front end of the push plate, a first cylinder is provided on the right front side of the mounting plate, and the left telescopic rod of the first cylinder is fixedly connected to the right front end of the push plate, the upper right side of the rear of the mounting plate is fixedly connected to the front end of the lower sieve plate, a second cylinder is provided on the upper right side of the front of the mounting plate, the telescopic rod at the rear of the second cylinder passes through the mounting plate and is fixedly connected to the front of the upper sieve plate, and the bottom surface of the upper sieve plate contacts the top surface of the lower sieve plate, and an ash inlet groove is provided on the right side of the ash collecting drawer.

[0011] Preferably, an oxygen supply controller is provided on the right side inside the boiler body, a cold water pipe and a hot water pipe are respectively provided on the left and right sides of the middle end of the top of the boiler body, and the lower ends of the cold water pipe and the hot water pipe are fixedly connected to the water tank on the top of the combustion chamber, an air intake pipe is provided on the right rear side of the boiler body, and the left end of the air intake pipe passes through the boiler body and is fixedly connected to the valve on the right rear side of the oxygen supply controller, the lower end of the collecting hopper is fixedly connected to the top side of the middle end of the feeding pipe, and the right end of the feeding pipe passes through the boiler body and is fixedly connected to the combustion chamber, and a motor is provided on the left side of the feeding pipe.

[0012] Preferably, the smoke prevention mechanism includes: a blower, a blower is provided on the bottom surface of the right side inside the boiler main body, and the air inlet on the left side of the blower is fixedly connected to the valve on the right front side of the oxygen supply controller, the air outlet pipe at the upper end of the blower is fixedly connected to the bottom of the installation box, an air outlet plate is movably embedded in the front end of the installation box, an isolation box is slidably connected to the bottom surface of the installation box, a sponge block is movably embedded in the isolation box, and filter bags are provided on the front and back sides of the top of the isolation box.

[0013] Preferably, the top of the lower sieve plate covers the bottom of the combustion chamber, and the left and right sides of the upper sieve plate are slidably connected to the lower end of the combustion chamber.

[0014] Preferably, ninety-one groups of small filtering holes are symmetrically arranged on the front of the air outlet plate.

[0015] Preferably, the lower end of the filter bag is threadedly connected to the top of the isolation box.

[0016] The utility model has the following advantages: The utility model provides a phase change thermal storage biomass heating boiler through improvement, which has the following improvements compared with the same type of equipment:

[0017] The utility model discloses a phase change thermal storage biomass heating boiler, in which a cleaning mechanism is arranged at the lower end of the boiler body, so that the ashes inside the combustion chamber pass through the through holes of the upper sieve plate and the lower sieve plate to the lower space of the lower sieve plate during the forward and backward swinging of the upper sieve plate, and are then pushed into the ash collecting drawer by the push plate to clean the ashes inside the combustion chamber, thereby preventing the ashes from being continuously accumulated and affecting the combustion and filling work inside the combustion chamber.

[0018] The utility model discloses a phase-change heat storage biomass heating boiler, in which a smoke prevention mechanism is arranged on the right side inside the boiler body, so that the smoke generated inside the combustion chamber can be sent to the interior of the isolation box by the blower through the oxygen supply controller, and filtered by the sponge block and the filter bag, so that harmful gases and substances in the smoke are retained in the isolation box to avoid diffusing to the outside, thereby reducing pollution to the surrounding environment and avoiding affecting the normal work of surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the dust cleaning mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the lower sieve plate and the upper sieve plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the smoke prevention mechanism structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the isolation box of the utility model.

[0024] Among them: boiler body-1, combustion chamber-2, collecting hopper-3, oxygen supply controller-4, cleaning mechanism-5, mounting plate-51, ash collection drawer-52, push plate-53, first cylinder-54, lower sieve plate-55, second cylinder-56, upper sieve plate-57, ash inlet trough-58, smoke prevention mechanism-6, blower-61, mounting box-62, air outlet plate-63, isolation box-64, sponge block-65, filter bag-66, cold water pipe-7, hot water pipe-8, feed pipe-9, motor-10, air inlet pipe-11. DETAILED DESCRIPTION

[0025] The following will be combined with the attached Figure 1-5 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0026] See also Figure 1 The utility model is a phase change heat storage biomass heating boiler, a combustion chamber 2 is provided at the middle and lower end of the boiler body 1, and a water tank and an annular phase change heat accumulator are provided on the top of the combustion chamber 2, and a collecting hopper 3 is provided on the left side of the boiler body 1; an oxygen supply controller 4 is provided on the right side of the boiler body 1, and a cold water pipe 7 and a hot water pipe 8 are provided on the left and right sides of the middle end of the top of the boiler body 1, respectively, and the lower ends of the cold water pipe 7 and the hot water pipe 8 are fixedly connected to the water tank at the top of the combustion chamber 2, an air intake pipe 11 is provided on the right rear side of the boiler body 1, and the left end of the air intake pipe 11 passes through the boiler body 1 and is fixedly connected to the valve on the right rear side of the oxygen supply controller 4, a filter is provided inside the air intake pipe 11 to prevent external foreign matter from being brought into the combustion chamber 2, the lower end of the collecting hopper 3 is fixedly connected to the top side of the middle end of the feeding pipe 9, and the right end of the feeding pipe 9 passes through the boiler body 1 and is fixedly connected to the combustion chamber 2, and a motor 10 is provided on the left side of the feeding pipe 9.

[0027] See also Figure 2 and Figure 3 The utility model is a phase change thermal storage biomass heating boiler, the ash cleaning mechanism 5 includes: a mounting plate 51 is provided at the lower front end of the boiler body 1, the left through groove of the mounting plate 51 is slidably connected with the ash collecting drawer 52, the right sliding groove of the mounting plate 51 is slidably connected with the front groove of the push plate 53, a first cylinder 54 is provided on the right front side of the mounting plate 51, and the left telescopic rod of the first cylinder 54 is fixedly connected with the right front end of the push plate 53, the upper right side of the rear of the mounting plate 51 is fixedly connected with the front end of the lower screen plate 55, and a second cylinder 54 is provided on the upper right front side of the mounting plate 51 6. The telescopic rod at the rear side of the second cylinder 56 passes through the mounting plate 51 and is fixedly connected to the front of the upper sieve plate 57, and the bottom surface of the upper sieve plate 57 contacts the top surface of the lower sieve plate 55. Through holes are provided inside the lower sieve plate 55 and the upper sieve plate 57, and the positions of the through holes between the two are staggered, so that the upper sieve plate 57 can overlap with the through holes of the lower sieve plate 55 only when driven by the second cylinder 56, so that the ashes inside the combustion chamber 2 fall down, and an ash feeding groove 58 is provided on the right side of the ash collecting drawer 52, so that the ashes can enter the ash collecting drawer 52 driven by the push plate 53;

[0028] The top of the lower sieve plate 55 covers the bottom of the combustion chamber 2, and the left and right sides of the upper sieve plate 57 are slidably connected to the lower end of the combustion chamber 2.

[0029] See also Figure 4 and Figure 5The utility model is a phase-change thermal storage biomass heating boiler, the smoke prevention mechanism 6 includes: a blower 61 is provided on the bottom surface of the right side of the boiler body 1, and the air inlet on the left side of the blower 61 is fixedly connected to the valve on the right front side of the oxygen supply controller 4, the air outlet pipe at the upper end of the blower 61 is fixedly connected to the bottom of the installation box 62, the front end of the installation box 62 is movably embedded with an air outlet plate 63, the bottom surface of the installation box 62 is slidably connected with an isolation box 64, the isolation box 64 is movably embedded with a sponge block 65, and the top and rear sides of the isolation box 64 are both provided with filter bags 66;

[0030] Ninety-one groups of small filter holes are symmetrically arranged in front of the air outlet plate 63 to further filter the gas inside the installation box 62 while preventing external impurities from entering the installation box 62; the lower end of the filter bag 66 is threadedly connected to the top of the isolation box 64, which facilitates the subsequent replacement of the filter bag 66. Embodiment 2:

[0031] The utility model is a phase change heat storage biomass heating boiler, in which an annular phase change heat accumulator is arranged around the water tank on the top of the combustion chamber 2, so that the annular phase change heat accumulator can absorb and release heat more conveniently, the motor 10 is fixedly connected with the feeding stirring rod inside the feeding pipe 9 through its output shaft, and the front and rear through holes on the right side of the combustion chamber 2 are fixedly connected with the front and rear valves on the left side of the oxygen supply controller 4 respectively, so that the oxygen supply controller 4 can send external oxygen to the combustion chamber 2 along the air intake pipe 11 through the blower 61 through suction, and then send the smoke generated inside the combustion chamber 2 to the isolation box 64.

[0032] The utility model provides a phase-change heat storage biomass heating boiler through improvement, and its working principle is as follows;

[0033] First, when using this device, first place the device in the working area, and then connect the device to the external power supply and external controller to provide the required power for the operation of the device;

[0034] Second, first open the cover of the collecting hopper 3, then pour the biomass into the collecting hopper 3, start the motor 10 through the external controller, and the motor 10 drives the feeding stirring rod inside the feeding pipe 9 through the output shaft to send the biomass inside the collecting hopper 3 to the combustion chamber 2, and then the biomass in the combustion chamber 2 is burned through the external controller, and the temperature of the water tank at the upper end of the combustion chamber 2 will rise, and the external cold water is continuously sent to the water tank for heating through the cold water pipe 7 and the hot water pipe 8, and the hot water in the water tank is sent to the outside. At the same time, the annular phase change heat accumulator will also continuously absorb heat, so that it is convenient to continue to provide heating to the water tank when the combustion chamber 2 does not provide heat later;

[0035] Third, when it is necessary to clean the accumulated ashes in the combustion chamber 2 and continue the combustion operation, firstly, the second cylinder 56 is started through the external controller, and the second cylinder 56 drives the upper sieve plate 57 to swing back and forth at the lower end of the combustion chamber 2 through the telescopic rod, so that the ashes in the combustion chamber 2 can continuously rise through the through hole when the upper sieve plate 57 and the lower sieve plate 55 overlap and fall into the lower space of the lower sieve plate 55, then the second cylinder 56 is stopped to close the falling of the ashes, and then the first cylinder 54 is started, and the first cylinder 54 drives the push plate 53 to move to the left along the right sliding groove of the mounting plate 51 through the telescopic rod, and pushes the ashes through the ash inlet groove 58 into the ash collecting drawer 52, so that the personnel can pour out the collected ashes by pulling out the ash collecting drawer 52. Through the above operation, the device can clean up the accumulated ashes in the combustion chamber 2 without stopping the combustion operation in the combustion chamber 2, so as to avoid the ashes affecting the combustion operation in the combustion chamber 2 and the subsequent filling operation of the combustion chamber 2, thereby increasing the overall working efficiency of the device and reducing the workload of the personnel;

[0036] Fourth, when oxygen is needed inside the combustion chamber 2 or smoke is generated and needs to be discharged and processed, the oxygen supply controller 4 and the blower 61 are first started through the external controller, and the oxygen supply controller 4 will open the connecting valve, so that the suction force generated by the blower 61 can bring external oxygen to the combustion chamber 2 through the air inlet pipe 11, and send the smoke inside the combustion chamber 2 to the isolation box 64. When the smoke drives the inside of the isolation box 64, it will be adsorbed by the sponge block 65, so that the particles in the smoke are adsorbed in the sponge block 65, and then the smoke will move upward and pass through the secondary filtration of the filter bag 66, so that other harmful gases and substances in the smoke are retained in the filter bag 66, and then the filtered gas will reach the outside through the air outlet plate 63, thereby completing the discharge and filtering of the smoke inside the combustion chamber 2, and the harmful gases and substances in the smoke are retained in the isolation box 64 to avoid diffusing to the outside, reducing pollution to the surrounding environment and avoiding affecting the normal work of the surrounding personnel;

[0037] Fifth, when the smoke-proof mechanism 6 needs to be maintained and replaced, first push the air outlet plate 63 upward so that the air outlet plate 63 can be pulled out from the front end of the installation box 62, and then pull the isolation box 64 out from the bottom of the installation box 62 to clean the impurities inside the isolation box 64 and replace the sponge block 65. At the same time, unscrew the two sets of filter bags 66 for replacement, thereby completing the maintenance and replacement of the smoke-proof mechanism 6.

[0038] The utility model provides a phase change thermal storage biomass heating boiler through improvement. By arranging an ash cleaning mechanism 5 at the lower end of the interior of the boiler body 1, the ash inside the combustion chamber 2 passes through the through holes of the upper sieve plate 57 and the lower sieve plate 55 to the lower space of the lower sieve plate 55 during the forward and backward swinging of the upper sieve plate 57, and is then pushed into the ash collecting drawer 52 by the push plate 53 to clean the ash inside the combustion chamber 2 to avoid the continuous accumulation of ash, which affects the combustion and filling work inside the combustion chamber 2; by arranging a smoke prevention mechanism 6 on the right side inside the boiler body 1, the smoke generated inside the combustion chamber 2 can be sent to the isolation box 64 by the blower 61 through the oxygen supply controller 4, and filtered by the sponge block 65 and the filter bag 66, harmful gases and substances in the smoke are retained in the isolation box 64 to avoid diffusing to the outside, thereby reducing pollution to the surrounding environment and avoiding affecting the normal work of surrounding personnel.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A phase-change heat storage biomass heating boiler, comprising a boiler body (1), a combustion chamber (2) being provided at the middle and lower end of the interior of the boiler body (1), a water tank and an annular phase-change heat storage device being provided at the top of the combustion chamber (2), and a collecting hopper (3) being provided at the left side of the boiler body (1); It is characterized in that Also includes: A ash cleaning mechanism (5), wherein the lower end of the boiler body (1) is provided with the ash cleaning mechanism (5); a smoke prevention mechanism (6), wherein the right end of the boiler body (1) is provided with the smoke prevention mechanism (6); The ash cleaning mechanism (5) comprises: a mounting plate (51), a mounting plate (51) being provided at the lower front end of the boiler body (1), a left through groove of the mounting plate (51) being slidably connected to the ash collecting drawer (52), a right sliding groove of the mounting plate (51) being slidably connected to the front groove of the push plate (53), a first cylinder (54) being provided at the right front end of the mounting plate (51), a telescopic rod of the left side of the first cylinder (54) being fixedly connected to the right front end of the push plate (53), a rear upper right side of the mounting plate (51) being fixedly connected to the front end of the lower sieve plate (55), a second cylinder (56) being provided at the upper right front end of the mounting plate (51), a telescopic rod of the rear side of the second cylinder (56) passing through the mounting plate (51) being fixedly connected to the front end of the upper sieve plate (57), and the bottom surface of the upper sieve plate (57) being in contact with the top surface of the lower sieve plate (55), and an ash inlet groove (58) being provided at the right side of the ash collecting drawer (52).

2. According to claim 1, a phase change thermal storage biomass heating boiler is characterized in that: An oxygen supply controller (4) is provided on the right side of the boiler body (1), and a cold water pipe (7) and a hot water pipe (8) are provided on the left and right sides of the middle end of the top of the boiler body (1), respectively, and the lower ends of the cold water pipe (7) and the hot water pipe (8) are fixedly connected to the water tank on the top of the combustion chamber (2). An air intake pipe (11) is provided on the right rear side of the boiler body (1), and the left end of the air intake pipe (11) passes through the boiler body (1) and is fixedly connected to the valve on the right rear side of the oxygen supply controller (4). The lower end of the collecting hopper (3) is fixedly connected to the top side of the middle end of the feeding pipe (9), and the right end of the feeding pipe (9) passes through the boiler body (1) and is fixedly connected to the combustion chamber (2), and a motor (10) is provided on the left side of the feeding pipe (9).

3. According to claim 2, a phase change thermal storage biomass heating boiler is characterized in that: The smoke prevention mechanism (6) comprises: a blower (61), wherein the blower (61) is provided on the bottom surface of the right side of the interior of the boiler body (1), and the air inlet on the left side of the blower (61) is fixedly connected to the valve on the right front side of the oxygen supply controller (4), the air outlet pipe at the upper end of the blower (61) is fixedly connected to the bottom of the installation box (62), the front end of the installation box (62) is movably embedded with an air outlet plate (63), the bottom surface of the interior of the installation box (62) is slidably connected with an isolation box (64), a sponge block (65) is movably embedded in the interior of the isolation box (64), and filter bags (66) are provided on the front and rear sides of the top of the isolation box (64).

4. According to claim 3, a phase change thermal storage biomass heating boiler is characterized in that: The top of the lower sieve plate (55) covers the bottom of the combustion chamber (2), while the left and right sides of the upper sieve plate (57) are slidably connected to the lower end of the combustion chamber (2).

5. A phase change thermal storage biomass heating boiler according to claim 4, characterized in that: Ninety-one groups of small filtering through holes are symmetrically arranged on the front of the air outlet plate (63).

6. A phase change thermal storage biomass heating boiler according to claim 5, characterized in that: The lower end of the filter bag (66) is threadedly connected to the top of the isolation box (64).

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