CN213983642U - Waste heat recovery equipment based on industrial boiler - Google Patents
Waste heat recovery equipment based on industrial boiler Download PDFInfo
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- CN213983642U CN213983642U CN202022727894.8U CN202022727894U CN213983642U CN 213983642 U CN213983642 U CN 213983642U CN 202022727894 U CN202022727894 U CN 202022727894U CN 213983642 U CN213983642 U CN 213983642U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a waste heat recovery device based on an industrial boiler, which comprises a heat exchanger connected on an exhaust pipeline of the boiler, wherein the exhaust pipeline of the heat exchanger is connected with a chimney through an air blower; a filtering flange is arranged on the exhaust pipeline in front of the heat exchanger, and a filtering plate is arranged in the filtering flange; a heat exchange tube is arranged in the heat exchanger, a water replenishing tube is arranged at the top end of the heat exchanger and connected to a water replenishing tank, and a heat preservation water tank is connected to the bottom of the heat exchanger; the bottom end of the heat-preservation water tank is connected with the water inlet end of the boiler through a water outlet pipeline, and a pump is arranged on the water outlet pipeline; a liquid level sensor is arranged in the heat preservation water tank; and a PLC (programmable logic controller) is arranged at the side end of the boiler. The utility model discloses the high-temperature gas that the boiler produced carries out the heat exchange with water again after filtering the flange, and the high-temperature water after the heat exchange heats in going into the boiler through the pump machine pump, carries out recycle with the waste heat that the boiler produced, has improved the rate of heat recovery.
Description
Technical Field
The utility model relates to a boiler combustion technology field, especially a waste heat recovery equipment based on industrial boiler.
Background
Industrial boiler burning fuel produces hot water or steam and provides heat energy for industrial production and people's life, and the boiler is at the in-process of work, and fuel burning can produce a large amount of high-temperature gas, if directly discharge high-temperature gas in the air, not only produce certain influence to environmental pollution, has a large amount of waste heat in the combustion gas moreover, and direct discharge still can influence ambient temperature, not only the polluted environment, still can cause the wasting of resources.
Because the fuel that china's industrial boiler burns is mostly coal, can produce a large amount of smoke and dust at the in-process of burning, if directly carry out waste heat recovery with the high-temperature gas who has the smoke and dust, cause waste heat recovery device to block up easily, not only influence waste heat recovery's effect, still can influence gaseous smooth and easy emission, security when influence boiler uses.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a waste heat recovery equipment based on industrial boiler, carries out recycle after filtering the high temperature gas that the boiler got rid of, improves the rate of heat recovery.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The waste heat recovery equipment based on the industrial boiler comprises a heat exchanger which is connected to an exhaust pipeline of the boiler and is used for exchanging heat for high-temperature gas, wherein the exhaust pipeline of the heat exchanger is connected with a chimney for exhausting through a blower; a filter flange for filtering smoke dust in high-temperature gas is arranged on the exhaust pipeline in front of the heat exchanger, and a filter plate for filtering smoke dust in high-temperature hot gas is arranged in the filter flange; the heat exchanger is internally provided with a snakelike heat exchange tube communicated with an exhaust pipeline, the top end of the heat exchanger is provided with a water replenishing tube used for adding water to the heat exchanger, the water replenishing tube is connected to a water replenishing tank, and the bottom of the heat exchanger is connected with a heat preservation water tank used for storing high-temperature water after heat exchange through a water outlet tube; the bottom end of the heat preservation water tank is connected with the water inlet end of the boiler through a water outlet pipeline, and a pump machine for pumping the hot water in the heat preservation water tank into the boiler is arranged on the water outlet pipeline; a liquid level sensor for monitoring the water level in the heat preservation water tank is arranged in the heat preservation water tank; the side of boiler is provided with the PLC controller of control pump machine action, and the input of PLC controller is connected to level sensor's output, and the input of pump machine is connected to the output of PLC controller.
Above-mentioned waste heat recovery equipment based on industrial boiler, filter the flange and include first flange and the second flange that connects through two at least engaging lugs in the outside, the filter passes through the sealing washer setting of both sides in first flange.
Above-mentioned waste heat recovery equipment based on industrial boiler, the inside of heat exchanger is provided with the level sensor who is used for detecting the water level in the heat exchanger, is provided with the moisturizing solenoid valve that is used for controlling the moisturizing of moisturizing case to the heat exchanger moisturizing on the moisturizing pipe, is provided with the play water solenoid valve that is used for controlling the heat exchanger play water on the outlet pipe, and the input of moisturizing solenoid valve and play water solenoid valve is connected respectively to the output of PLC controller.
Above-mentioned waste heat recovery equipment based on industrial boiler, the heat exchange tube is wrapped up and is equipped with the heat-conducting layer of being convenient for heat conduction.
According to the waste heat recovery device based on the industrial boiler, the bottom end of the heat preservation water tank is provided with the water outlet faucet, and the water outlet faucet is provided with the water outlet valve.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses the high-temperature gas that the boiler produced carries out the heat exchange with water again after filtering the flange, and the high-temperature water after the heat exchange heats in going into the boiler through pump machine pump, carries out recycle with the waste heat that the boiler produced, has improved the rate of heat recovery, has avoided the wasting of resources. The utility model provides a clearance can be dismantled to the filtration flange, has improved the filterable efficiency of smoke and dust to guarantee the security that the boiler used.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the filter flange according to the present invention;
fig. 3 is a schematic structural diagram of the heat exchanger according to the present invention;
wherein: 1. the system comprises a boiler, an exhaust pipeline 2, a filtering flange 3, a first flange 31, a second flange 32, a connecting lug 33, a sealing ring 34, a filter plate 35, a heat exchanger 4, a heat exchange pipe 41, a water replenishing pipe 42, a water outlet pipe 43, a water replenishing tank 5, a water replenishing electromagnetic valve 6, a blower 7, a chimney 8, a heat preservation water tank 9, a water outlet electromagnetic valve 10, a water outlet faucet 11, a water outlet valve 12, a pump 13 and a PLC (programmable logic controller) controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The structure of the waste heat recovery equipment based on the industrial boiler is shown in figures 1-2, and the waste heat recovery equipment comprises a filtering flange 3, a heat exchanger 4, a water replenishing tank 5, an air blower 7, a chimney 8, a heat preservation water tank 9 and a PLC (programmable logic controller). The filter flange 3 is arranged on the exhaust pipeline 2 of the boiler 1 and used for filtering smoke dust in high-temperature gas, the heat exchanger 4 is arranged behind the filter flange 3 and used for exchanging heat with the high-temperature gas, the water replenishing tank 5 is connected to a water replenishing pipe 42 of the heat exchanger and used for replenishing water into the heat exchanger for heat exchange, the heat preservation water tank 9 is arranged at a water outlet end of the heat exchanger and used for storing water after heat exchange, the air blower 7 is arranged on the exhaust pipeline of the heat exchanger 4, the rear part of the air blower 7 is connected to the chimney 8, and gas after heat exchange is discharged into the air from the chimney under the action of the air blower. The PLC controller 14 is provided on the outer wall of the boiler.
The filter flange 3 comprises a first flange 31, a second flange 32, an attachment lug 33 and a filter plate 35. The first flange 31 and the second flange 32 are assembled and respectively connected to the exhaust pipe 2, at least two connecting lugs 33 are provided for connecting the first flange 31 and the second flange 32, and the filter plate 35 is provided in the first flange 31 for filtering smoke in high-temperature gas. In order to ensure the tightness of the connection of the first flange 31 and the second flange 32, sealing rings 34 are provided on both sides of the filter plate 35.
After 3 long-time uses of filter flange, the filter is blockked up by the smoke and dust easily, influences filterable effect, can open the engaging lug on the filter flange, separately first flange 31 and second flange 32, get rid of the sealing washer in the filter outside, take out the filter and clear up, pack into the filter in the second flange after the clearance is accomplished, then connect first flange 31 and second flange 32 through the engaging lug alright continue to use to improve the filterable effect of smoke and dust.
A heat exchange tube 41 is arranged in the heat exchanger 4, the air inlet end of the heat exchange tube 41 is connected to the exhaust, and the air outlet end of the heat exchange tube 41 is connected to an exhaust pipeline connected with a blower. The top of heat exchanger 4 is provided with moisturizing pipe 42, moisturizing pipe 42 is connected on moisturizing box 5, be provided with moisturizing solenoid valve 6 on the moisturizing pipe 42, be used for controlling moisturizing box to the moisturizing in the heat exchanger, 4 bottoms of heat exchanger are connected on holding water box 9 through outlet pipe 43, be provided with water outlet solenoid valve 10 on the outlet pipe 43, be used for controlling the heat exchanger and go out water, the inside of heat exchanger 4 is provided with level sensor, a water level in the heat exchanger is used for monitoring, the input of PLC controller is connected to level sensor's output, the input of moisturizing solenoid valve and water outlet solenoid valve is connected respectively to PLC controller 14's output.
When the liquid level sensor detects that the water level in the heat exchanger is lower, the PLC controller opens the water replenishing electromagnetic valve, and the water replenishing tank replenishes water in to the heat exchanger, and when the liquid level sensor detected that the water level is higher, the PLC controller opened the water outlet electromagnetic valve, and the heat exchanger goes out water to holding water tank.
The heat exchange tube 41 is of a serpentine structure, and the heat conduction layer is arranged on the heat exchange tube 41, so that heat in the heat exchange tube can be conveniently exchanged with water, and the heat exchange efficiency is improved.
The bottom of holding water box 9 is connected through outlet conduit with the end of intaking of boiler between, and the last pump machine 13 that is provided with of outlet conduit is used for going into the boiler with the warm water pump in the holding water box, is provided with level sensor in the holding water box 9, is used for detecting the water level in the holding water box 9, and the input of PLC controller is connected to level sensor's output, and the input of pump machine is connected to the output of PLC controller. When the liquid level sensor detects that the water level is higher, the PLC controller starts the pump machine, and warm water in the heat preservation water tank is pumped into the boiler to be heated.
The bottom end of the heat preservation water tank 9 is provided with a water outlet tap 11, the water outlet tap 11 is provided with a water outlet valve 12, and warm water in the heat preservation water tank 9 is taken out through the water outlet tap, so that people can use the water.
High-temperature gas discharged by the boiler is filtered by the filtering flange and enters the heat exchanger to exchange heat with water, the exchanged low-temperature gas is discharged into the air through the chimney under the action of the air blower, low-temperature water in the water supplementing tank enters the heat preservation water tank after being subjected to heat exchange with the high-temperature gas in the heat exchanger, and then is pumped into the boiler by the pump machine to be heated, so that waste heat generated by the boiler is recycled, and resource waste is avoided.
Claims (5)
1. The waste heat recovery equipment based on the industrial boiler comprises a heat exchanger (4) which is connected to an exhaust pipeline (2) of the boiler (1) and used for exchanging heat for high-temperature gas, wherein the exhaust pipeline of the heat exchanger (4) is connected with a chimney (8) used for exhausting through a blower (7); the method is characterized in that: a filtering flange (3) for filtering smoke dust in high-temperature gas is arranged on the exhaust pipeline (2) in front of the heat exchanger (4), and a filtering plate (35) for filtering smoke dust in high-temperature hot gas is arranged in the filtering flange (3); a snakelike heat exchange tube (41) communicated with an exhaust pipeline is arranged inside the heat exchanger (4), a water replenishing tube (42) used for replenishing water to the heat exchanger is arranged at the top end of the heat exchanger (4), the water replenishing tube (42) is connected to the water replenishing tank (5), and the bottom of the heat exchanger (4) is connected with a heat preservation water tank (9) used for storing high-temperature water after heat exchange through a water outlet tube (43); the bottom end of the heat preservation water tank (9) is connected with the water inlet end of the boiler (1) through a water outlet pipeline, and a pump (13) for pumping the hot water in the heat preservation water tank into the boiler is arranged on the water outlet pipeline; a liquid level sensor for monitoring the water level in the heat preservation water tank is arranged in the heat preservation water tank (9); the side of boiler (1) is provided with PLC controller (14) of control pump machine action, and the input of PLC controller is connected to level sensor's output, and the input of pump machine is connected to the output of PLC controller.
2. The industrial boiler based waste heat recovery device of claim 1, wherein: the filter flange (3) comprises a first flange (31) and a second flange (32) which are connected through at least two connecting lugs (33) on the outer side, and a filter plate (35) is arranged in the first flange (31) through sealing rings (34) on two sides.
3. The industrial boiler based waste heat recovery device of claim 1, wherein: the water level sensor for detecting the water level in the heat exchanger is arranged in the heat exchanger (4), the water replenishing electromagnetic valve (6) for controlling the water replenishing of the water replenishing tank (5) to the heat exchanger is arranged on the water replenishing pipe (42), the water outlet electromagnetic valve (10) for controlling the water outlet of the heat exchanger is arranged on the water outlet pipe (43), and the output end of the PLC is connected with the input ends of the water replenishing electromagnetic valve (6) and the water outlet electromagnetic valve respectively.
4. The industrial boiler based waste heat recovery device of claim 1, wherein: the heat exchange tube (41) is wrapped with a heat conduction layer convenient for heat conduction.
5. The industrial boiler based waste heat recovery device of claim 1, wherein: the bottom end of the heat preservation water tank (9) is provided with a water outlet tap (11), and the water outlet tap (11) is provided with a water outlet valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727894.8U CN213983642U (en) | 2020-11-23 | 2020-11-23 | Waste heat recovery equipment based on industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727894.8U CN213983642U (en) | 2020-11-23 | 2020-11-23 | Waste heat recovery equipment based on industrial boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213983642U true CN213983642U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022727894.8U Active CN213983642U (en) | 2020-11-23 | 2020-11-23 | Waste heat recovery equipment based on industrial boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213983642U (en) |
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2020
- 2020-11-23 CN CN202022727894.8U patent/CN213983642U/en active Active
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