Energy-saving boiler waste heat recycling device

Abstract

The invention relates to the technical field of boilers, in particular to an energy-saving boiler waste heat recycling device which comprises a base body and a gas-fired boiler, the gas-fired boiler is connected with the base body, and a particle removing device is arranged at one end of the gas-fired boiler and used for filtering smoke and water vapor. A heat exchanger body is arranged at the other end of the particle removing device and used for absorbing heat in smoke and water vapor and preventing particle impurities from corroding the device and blocking a pipeline, a smoke transferring device is arranged at one end of the heat exchanger body and used for filtering smoke, and the smoke transferring device is rotationally connected with a control assembly. A flue gas flow direction adjusting device is arranged in the flue gas transfer device, and the flue gas transfer device is used for driving the flue gas flow direction adjusting device to move, so that flue gas flow is controlled, the combustion efficiency of fuel gas in the gas-fired boiler is improved, and harmful gas such as carbon monoxide and hydrogen which are not completely combusted is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, in particular to an energy-saving boiler waste heat recycling device. Background Art

[0002] Gas boilers include gas-fired water boilers, gas-fired hot water boilers, gas-fired steam boilers, etc. They are thermal energy equipment that uses natural gas, liquefied petroleum gas and other gases as fuels. They are widely used in heating, industrial production and hot water supply. The core principle is to release heat energy by burning gas to heat water or generate steam. Gas boilers have the advantages of high thermal efficiency, low pollution emissions and high degree of automation. They have gradually replaced traditional coal-fired boilers. Common methods for reusing gas filtration heat include heat exchange devices, condensing devices and heat pipe devices.

[0003] At present, the existing gas boiler high temperature waste heat recycling device has the following shortcomings in use:

[0004] 1. Gas boilers will generate a large amount of water vapor and flue gas when in use. Most of the water vapor and flue gas are recovered through heat exchangers. However, the water vapor and flue gas generated by gas boilers may carry particulate pollutants. If they are not handled in time before conversion, they will be adsorbed in the heat exchanger or exhaust pipe, resulting in adsorption and corrosion of the boiler and heat exchanger devices.

[0005] 2. After the heat exchanger recovers heat, there will be a lot of flue gas that cannot be recovered. The unrecoverable flue gas will be directly discharged, which is easy to harm the environment.

[0006] The present invention aims to solve the technical problems existing in the prior art, and for this purpose, proposes an energy-saving boiler waste heat recycling device. Summary of the invention

[0007] The object of the present invention is to provide an energy-saving boiler waste heat recycling device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An energy-saving boiler waste heat recycling device comprises a base body and a gas boiler, wherein the gas boiler is connected to the base body, a particle removal device is arranged at one end of the gas boiler, the particle removal device is used to filter flue gas and water vapor, and a heat exchanger body is arranged at the other end of the particle removal device, the heat exchanger body is used to absorb heat in the flue gas and water vapor;

[0010] A flue gas transfer device is provided at one end of the heat exchanger body. The flue gas transfer device is used for flue gas filtering. The flue gas transfer device is rotatably connected to a control component. A flue gas flow direction regulating device is provided inside the flue gas transfer device. The flue gas flow direction regulating device is meshed with the flue gas transfer device. The flue gas transfer device is used to drive the flue gas flow direction regulating device to move, so that the flue gas flow direction regulating device controls the flow of smoke.

[0011] As a further solution of the present invention: the particle removal device includes a connecting box, an inner cavity is arranged inside the connecting box, an air outlet pipe is arranged on one side of the connecting box, the inner cavity is connected to the gas boiler through the air outlet pipe, a connecting pipe is arranged on one side of the connecting box, the inner cavity is connected to the heat exchanger body through the connecting pipe, and a particle collection box is arranged inside the connecting box.

[0012] As a further solution of the present invention: a rotating part is arranged inside the connecting box, the rotating part is fixedly connected to the connecting box, the cylindrical surface of the rotating part is rotatably connected to a support rod, the support rod is fixedly connected to a plurality of scrapers, an arc filter is arranged inside the connecting box, and the scrapers are used to scrape off particulate impurities adhered to the arc filter.

[0013] As a further solution of the present invention: the heat exchanger body includes a heat exchanger, the heat exchanger is fixedly connected to the gas boiler, the heat exchanger is connected to the connecting pipe, a smoke exhaust pipe is provided on one side of the heat exchanger, the heat exchanger is connected to the smoke transfer device through the smoke exhaust pipe, a cold source inlet is provided on one side of the heat exchanger, a heat source outlet is provided on one side of the heat exchanger, a one-way valve is provided on one side of the heat exchanger, and the heat exchanger is connected to the gas boiler through the one-way valve.

[0014] As a further solution of the present invention: the flue gas transfer device includes a transfer box, the transfer box is connected to the smoke exhaust pipe, a circulation pipe is arranged on one side of the transfer box, the transfer box is connected to the base body through the circulation pipe, a transfer box is provided inside, a turn handle is connected to the flue gas flow direction regulating device, a chimney is arranged on one side of the transfer box, the chimney is provided with a flue gas purification box, and limestone and activated carbon are arranged in the flue gas purification box.

[0015] As a further solution of the present invention: the flue gas flow direction regulating device includes a baffle, which is in sliding contact with the transfer box, and a connecting plate is provided on one side of the baffle, and a spherical plug is provided on the other end of the connecting plate, and the spherical plug is used to control the connection between the circulation pipe and the transfer box. A connecting port is provided on one side of the baffle, and the connecting port is used to control the connection between the chimney and the transfer box. A gear meshing groove is provided inside the baffle, and the gear meshing groove meshes with the control component.

[0016] As a further solution of the present invention: the control component includes an active rod, the active rod is rotatably connected to the transfer box, the active rod passes through the gear meshing groove, a gear is arranged on the cylindrical surface of the active rod, the gear meshes with the gear meshing groove, and a rotating handle is arranged at one end of the active rod.

[0017] As a further solution of the present invention: the base body includes a mounting seat, a blower is arranged on one side of the mounting seat, a blast pipe is arranged at one end of the blower, the blast pipe is connected to the circulation pipeline, and the other end of the blast pipe is connected to the gas boiler.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The water vapor and flue gas generated by the gas boiler when in use enter the inner cavity through the air outlet pipe, and then enter the heat exchanger body through the connecting pipe for heat conversion, wherein the arc filter filters the water vapor and flue gas. At the same time, because the gas boiler is in use, the internal air pressure of the gas boiler is much greater than the air pressure inside the connecting pipe and the heat exchanger body, that is, the airflow generated when the water vapor and flue gas flow from high pressure to low pressure will push the scraper, that is, the scraper and the support rod rotate with the rotating part as the rotating axis. During the rotation of the scraper, the particulate impurities adhered to the lower surface of the arc filter can be scraped off to prevent the particulate impurities from corroding the device and clogging the pipe.

[0019] 2. After the heat exchanger body, water vapor and flue gas are converted into heat, the water vapor is liquefied into water, and then enters the gas boiler through a one-way valve for recycling. At the same time, the flue gas enters the gas boiler through a flue gas transfer device and a blast pipe for secondary combustion, thereby improving the gas combustion efficiency in the gas boiler and reducing harmful gases such as carbon monoxide and hydrogen that are not completely burned. The control component is rotated, and the control component drives the flue gas flow direction regulating device to move. The flue gas flow direction regulating device disconnects the circulation pipeline from the transfer box. At the same time, the flue gas flow direction regulating device connects the chimney and the transfer box, so that the flue gas is discharged through the chimney. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a structural schematic diagram of an energy-saving boiler waste heat recycling device.

[0021] Figure 2 The diagram is a structural diagram of a gas boiler in an energy-saving boiler waste heat recycling device.

[0022] Figure 3 The figure is a schematic diagram of the structure of a heat exchanger body in an energy-saving boiler waste heat recycling device.

[0023] Figure 4 This is a diagram of the internal structure of a flue gas transfer device in an energy-saving boiler waste heat recycling device.

[0024] Figure 5 The present invention is a structural schematic diagram of a flue gas flow direction regulating device in an energy-saving boiler waste heat recycling device.

[0025] Figure 6 The figure is a schematic diagram of the structure of the control components in an energy-saving boiler waste heat recycling device.

[0026] Figure 7 The diagram is a structural diagram of a blower in an energy-saving boiler waste heat recycling device.

[0027] 1-base body, 2-gas boiler, 3-smoke transfer device, 4-heat exchanger body, 5-particle removal device, 6-control component, 7-smoke flow direction adjustment device, 101-mounting seat, 102-blower, 103-blower pipe, 301-transfer box, 302-circulation pipe, 303-chimney, 304-smoke purification box, 401-heat exchanger, 402-cold source inlet, 403-exhaust pipe, 404-heat source outlet, 405- one-way valve, 501- connecting box, 502- arc filter, 503- scraper, 504- rotating part, 505- supporting rod, 506- particle collection box, 507- connecting pipe, 508- air outlet pipe, 509- inner cavity, 601- rotating handle, 602- active rod, 603- rotating gear, 701- baffle, 702- connecting plate, 703- spherical plug, 704- gear meshing groove, 705- connecting port. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] See also Figure 1-7 An energy-saving boiler waste heat recycling device comprises a base body 1 and a gas boiler 2, wherein the gas boiler 2 is connected to the base body 1, a particle removal device 5 is arranged at one end of the gas boiler 2, and the particle removal device 5 is used to filter the flue gas and water vapor, and a heat exchanger body 4 is arranged at the other end of the particle removal device 5, and the heat exchanger body 4 is used to absorb the heat in the flue gas and water vapor to prevent the particle impurities from corroding the device and clogging the pipeline;

[0031] A flue gas transfer device 3 is provided at one end of the heat exchanger body 4. The flue gas transfer device 3 is used for flue gas filtering. The flue gas transfer device 3 is rotatably connected to a control component 6. A flue gas flow direction regulating device 7 is provided inside the flue gas transfer device 3. The flue gas flow direction regulating device 7 is meshed with the flue gas transfer device 3. The flue gas transfer device 3 is used to drive the flue gas flow direction regulating device 7 to move, so that the flue gas flow direction regulating device 7 controls the flow of flue gas, improves the combustion efficiency of the gas in the gas boiler 2, and reduces harmful gases such as carbon monoxide and hydrogen that are not completely burned.

[0032] See also Figure 1-2 The particle removal device 5 includes a connecting box 501, an inner cavity 509 is arranged inside the connecting box 501, an air outlet pipe 508 is arranged on one side of the connecting box 501, and the inner cavity 509 is connected to the gas boiler 2 through the air outlet pipe 508, a connecting pipe 507 is arranged on one side of the connecting box 501, and the inner cavity 509 is connected to the heat exchanger body 4 through the connecting pipe 507, and a particle collection box 506 is arranged inside the connecting box 501, and the water vapor generated when the 2 is in use is mixed with the gas boiler 2. The smoke enters the inner cavity 509 through the particle collection box 506, and a plurality of scrapers 503 divide the inner cavity 509 into a plurality of closed spaces. After the water vapor and smoke enter the inner cavity 509 through the exhaust pipe 508, the air pressure of the closed space connected to the particle collection box 506 is greater than the air pressure of the closed space connected to the connecting pipe 507. When the water vapor and smoke flow from high pressure to low pressure, the scraper 503 is pushed to move, so that the water vapor and smoke pass through the arc filter 502 and enter the connecting pipe 507.

[0033] See also Figure 2 A rotating member 504 is arranged inside the connecting box 501, and the rotating member 504 is fixedly connected to the connecting box 501. The cylindrical surface of the rotating member 504 is rotatably connected to a support rod 505, and the support rod 505 is fixedly connected to a plurality of scrapers 503. An arc filter 502 is arranged inside the connecting box 501, and the scraper 503 is used to scrape off the particulate impurities adhered to the arc filter 502. The scraper 503 and the support rod 505 rotate with the rotating member 504 as the rotating axis, wherein the arc filter 502 filters water vapor and smoke to remove particulate impurities in the water vapor and smoke. During the rotation of the scraper 503, the particulate impurities adhered to the lower surface of the arc filter 502 are scraped off to avoid clogging the arc filter 502.

[0034] See also Figure 1 , Figure 3The heat exchanger body 4 includes a heat exchanger 401, which is fixedly connected to the gas boiler 2, and is connected to a connecting pipe 507. A smoke exhaust pipe 403 is provided on one side of the heat exchanger 401, and the heat exchanger 401 is connected to the smoke transfer device 3 through the smoke exhaust pipe 403. A cold source inlet 402 is provided on one side of the heat exchanger 401, and a heat source outlet 404 is provided on one side of the heat exchanger 401. A one-way valve 405 is provided on one side of the heat exchanger 401, and the heat exchanger 401 is connected to the gas boiler 2 through the one-way valve 405. Water vapor and smoke enter the heat exchanger 401 through the connecting pipe 507 for heat conversion, so that the water vapor is liquefied into water, and the water enters the gas boiler 2 through the one-way valve 405 for recycling.

[0035] See also Figure 1 , Figure 4 The flue gas transfer device 3 includes a transfer box 301, which is connected to the smoke exhaust pipe 403. A circulation pipe 302 is arranged on one side of the transfer box 301. The transfer box 301 is connected to the base body 1 through the circulation pipe 302. A 305 is opened inside the transfer box 301. The handle 601 is connected to the flue gas flow direction regulating device 7 through 305. A chimney 303 is arranged on one side of the transfer box 301. The chimney 303 is provided with a flue gas purification box 304. Limestone and activated carbon are arranged in the flue gas purification box 304. When the flue gas passes through the flue gas purification box 304, the limestone and activated carbon arranged in the flue gas purification box 304 can remove harmful gases in the flue gas.

[0036] See also Figure 3 , Figure 5 The flue gas flow direction regulating device 7 includes a baffle 701, which is in sliding contact with the transfer box 301 through 305. A connecting plate 702 is provided on one side of the baffle 701, and a spherical plug 703 is provided on the other end of the connecting plate 702. The spherical plug 703 is used to control the circulation pipe 302 to be connected with the transfer box 301. A connecting port 705 is provided on one side of the baffle 701, and the connecting port 705 is used to control the chimney 303 to be connected with the transfer box 301. A gear meshing groove 704 is provided inside the baffle 701, and the gear meshing groove 704 is meshed with the control component 6. The handle 601 rotates forward, and the handle 601 drives the gear 603 to rotate through the active rod 602. Since the gear 603 is meshed with the gear meshing groove 704, the gear 603 drives the baffle 701 to move left through the gear meshing groove 704.

[0037] See also Figure 3 , Figure 6The control component 6 includes an active rod 602, which is rotatably connected to the transfer box 301. The active rod 602 passes through the gear meshing groove 704. A gear 603 is provided on the cylindrical surface of the active rod 602, and the gear 603 meshes with the gear meshing groove 704. A handle 601 is provided at one end of the active rod 602. The baffle 701 drives the connecting plate 702, the spherical plug 703 and the connecting port 705 to move toward the circulation pipe 302. When the spherical plug 703 moves to a certain extent, the spherical plug 703 blocks the circulation pipe 302, that is, the circulation pipe 302 is disconnected from the transfer box 301. At the same time, the connecting port 705 is connected to the chimney 303, and the smoke is discharged through the connecting port 705 and the chimney 303.

[0038] See also Figure 1 , Figure 7 The base body 1 includes a mounting seat 101, a blower 102 is arranged on one side of the mounting seat 101, a blast pipe 103 is arranged on one end of the blower 102, the blast pipe 103 is connected to the circulation pipe 302, and the other end of the blast pipe 103 is connected to the gas boiler 2. The handle 601 rotates in the opposite direction, the connecting port 705 disconnects the chimney 303, and the circulation pipe 302 is connected to the transfer box 301. The flue gas enters the blast pipe 103 through the circulation pipe 302 and mixes with the air. The mixed gas re-enters the gas boiler 2 through the blast pipe 103 for secondary combustion, thereby improving the combustion efficiency of the gas in the gas boiler 2 and reducing harmful gases such as carbon monoxide and hydrogen that are not completely burned.

[0039] The working principle of the present invention is as follows: the water vapor and smoke generated by the gas boiler 2 when in use enter the inner cavity 509 through the particle collection box 506, and a plurality of scrapers 503 divide the inner cavity 509 into a plurality of closed spaces. After the water vapor and smoke enter the inner cavity 509 through the gas outlet pipe 508, the air pressure of the closed space connected to the particle collection box 506 is greater than the air pressure of the closed space connected to the connecting pipe 507. When the water vapor and smoke flow from high pressure to low pressure, the scraper 503 is pushed to move, so that the water vapor and smoke pass through the arc filter 502 and enter the connecting pipe 507, that is, the scraper 503 and the support rod 505 are connected by the rotating member 508. 4 is a rotating shaft that rotates, wherein the arc filter 502 filters the water vapor and the flue gas to remove the particulate impurities in the water vapor and the flue gas. During the rotation of the scraper 503, the particulate impurities adhered to the lower surface of the arc filter 502 are scraped off to avoid clogging the arc filter 502. The water vapor and the flue gas enter the heat exchanger 401 through the connecting pipe 507 for heat conversion, so that the water vapor is liquefied into water. The water enters the gas boiler 2 for recycling through the one-way valve 405, and the flue gas enters the transfer box 301 through the exhaust pipe 403. The direction of the flue gas is controlled by rotating the handle 601. The handle 601 rotates forward, and the handle 601 rotates forward. 01 drives the gear 603 to rotate through the active rod 602. Since the gear 603 is meshed with the gear meshing groove 704, the gear 603 drives the baffle 701 to move left through the gear meshing groove 704. The baffle 701 drives the connecting plate 702, the spherical plug 703 and the connecting port 705 to move toward the circulation pipe 302. When the spherical plug 703 moves to a certain extent, the spherical plug 703 blocks the circulation pipe 302, that is, the circulation pipe 302 is disconnected from the transfer box 301. At the same time, the connecting port 705 is connected with the chimney 303, and the smoke is discharged through the connecting port 705 and the chimney 303. The chimney 303 is provided with a flue gas purification box 304. When the flue gas passes through the flue gas purification box 304, the limestone and activated carbon provided in the flue gas purification box 304 can remove harmful gases in the flue gas. The handle 601 rotates in the opposite direction, the connecting port 705 disconnects the chimney 303, the circulation pipe 302 is connected with the transfer box 301, and the flue gas enters the blast pipe 103 through the circulation pipe 302 and mixes with the air. The mixed gas re-enters the gas boiler 2 through the blast pipe 103 for secondary combustion, thereby improving the gas combustion efficiency in the gas boiler 2 and reducing harmful gases such as carbon monoxide and hydrogen that are not completely burned.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations 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 claims and their equivalents.

Claims

1. An energy-saving boiler waste heat recycling device, comprising a base body and a gas boiler, characterized in that: The gas boiler is connected to the base body, a particle removal device is arranged at one end of the gas boiler, the particle removal device is used to filter the flue gas and water vapor, and a heat exchanger body is arranged at the other end of the particle removal device, the heat exchanger body is used to absorb heat in the flue gas and water vapor; A flue gas transfer device is provided at one end of the heat exchanger body. The flue gas transfer device is used for flue gas filtering. The flue gas transfer device is rotatably connected to a control component. A flue gas flow direction regulating device is provided inside the flue gas transfer device. The flue gas flow direction regulating device is meshed with the flue gas transfer device. The flue gas transfer device is used to drive the flue gas flow direction regulating device to move, so that the flue gas flow direction regulating device controls the flow of smoke.

2. The energy-saving boiler waste heat recycling device according to claim 1 is characterized in that: The particle removal device includes a connecting box, an inner cavity is arranged inside the connecting box, an air outlet pipe is arranged on one side of the connecting box, the inner cavity is connected to the gas boiler through the air outlet pipe, a connecting pipe is arranged on one side of the connecting box, the inner cavity is connected to the heat exchanger body through the connecting pipe, and a particle collection box is arranged inside the connecting box.

3. The energy-saving boiler waste heat recycling device according to claim 2 is characterized in that: The connecting box body is provided with a rotating part inside, the rotating part is fixedly connected to the connecting box body, the cylindrical surface of the rotating part is rotatably connected to a support rod, the support rod is fixedly connected to a plurality of scrapers, an arc filter is provided inside the connecting box body, and the scrapers are used to scrape off particulate impurities adhered to the arc filter screen.

4. The energy-saving boiler waste heat recycling device according to claim 2 is characterized in that: The heat exchanger body includes a heat exchanger, which is fixedly connected to the gas boiler, and the heat exchanger is connected to the connecting pipe. A smoke exhaust pipe is provided on one side of the heat exchanger, and the heat exchanger is connected to the smoke transfer device through the smoke exhaust pipe. A cold source inlet is provided on one side of the heat exchanger, and a heat source outlet is provided on one side of the heat exchanger. A one-way valve is provided on one side of the heat exchanger, and the heat exchanger is connected to the gas boiler through the one-way valve.

5. The energy-saving boiler waste heat recycling device according to claim 4 is characterized in that: The flue gas transfer device includes a transfer box, which is connected to the smoke exhaust pipe. A circulation pipe is arranged on one side of the transfer box, and the transfer box is connected to the base body through the circulation pipe. The transfer box is provided inside, and a flue gas flow direction regulating device is connected to the turning handle. A chimney is arranged on one side of the transfer box, and a flue gas purification box is arranged on the chimney. Limestone and activated carbon are arranged in the flue gas purification box.

6. The energy-saving boiler waste heat recycling device according to claim 5 is characterized in that: The flue gas flow direction regulating device includes a baffle, which is in sliding contact with the transfer box. A connecting plate is provided on one side of the baffle, and a spherical plug is provided on the other end of the connecting plate. The spherical plug is used to control the connection between the circulation pipeline and the transfer box. A connecting port is provided on one side of the baffle, and the connecting port is used to control the connection between the chimney and the transfer box. A gear meshing groove is provided inside the baffle, and the gear meshing groove meshes with the control component.

7. The energy-saving boiler waste heat recycling device according to claim 6 is characterized in that: The control component includes an active rod, which is rotatably connected to the transfer box, the active rod passes through the gear meshing groove, a gear is arranged on the cylindrical surface of the active rod, the gear meshes with the gear meshing groove, and a rotating handle is arranged at one end of the active rod.

8. The energy-saving boiler waste heat recycling device according to claim 5 is characterized in that: The base body comprises a mounting seat, a blower is arranged on one side of the mounting seat, a blast pipe is arranged on one end of the blower, the blast pipe is connected to the circulation pipeline, and the other end of the blast pipe is connected to the gas boiler.

Images