CN218821861U - Device for utilizing residual temperature of high-temperature tail gas of thermal power plant - Google Patents
Device for utilizing residual temperature of high-temperature tail gas of thermal power plant Download PDFInfo
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- CN218821861U CN218821861U CN202320418483.1U CN202320418483U CN218821861U CN 218821861 U CN218821861 U CN 218821861U CN 202320418483 U CN202320418483 U CN 202320418483U CN 218821861 U CN218821861 U CN 218821861U
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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 device for utilizing residual heat of high temperature tail gas of thermal power plant relates to high temperature tail gas residual heat utilization technical field, including collecting mechanism and heat transfer mechanism, high temperature tail gas enters into the inside back of collecting vessel, will carry the heat transfer incasement through transmission assembly, at this moment opens shunt in the middle of the first ring pipe and the ball valve on the inlet tube, and the water that needs the heat transfer pours into water storage component into through the inlet tube in, and the high temperature tail gas that gets into at last in the heat transfer incasement can carry out heat transfer treatment through the waste heat to the water that pours into in the water storage component into, avoids the waste of the energy as far as possible, practices thrift the environmental protection. The high temperature tail gas temperature after the heat transfer also can reduce, and the staff can open the blow-down pipe, makes in tail gas gets into the blow-down pipe and outwards discharges after filtering through the filter, avoids containing the foreign particles in the tail gas and causes the pollution to the surrounding environment.
Description
Technical Field
The utility model relates to a high temperature tail gas waste heat utilizes technical field, especially a device for utilizing high temperature tail gas waste heat of steam power plant.
Background
The thermal power plant is a thermal power plant which utilizes the extraction steam or the exhaust steam of a steam turbine to supply heat for users while generating electricity. The main working principle is that hot water generated by a thermal power plant is used for heating again.
Most of the existing power plants are thermal power generation, the thermal power generation needs to burn a large amount of coal and simultaneously discharge a large amount of tail gas, and the tail gas generated by coal burning comprises gases such as carbon dioxide, sulfur dioxide and the like; sulfur dioxide and the like can cause air pollution when directly discharged into the air, the generated tail gas generally has high temperature and a large amount of heat, the temperature can reach more than 100 ℃, the high-temperature tail gas is directly discharged into the atmosphere, so that not only is the local temperature too high to generate heat pollution, but also the full utilization of resources is not facilitated.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the disclosure.
In view of above-mentioned and/or current a thermal power plant high temperature tail gas residual temperature's utilizing device in have thermal power to need a large amount of coal of burning a large amount of tail gases of discharging simultaneously, the tail gas of production generally has a high temperature and has a large amount of heats, the temperature can reach more than 100 ℃, the tail gas of high temperature directly discharges not only to cause local high temperature to produce thermal pollution in the atmosphere, also does not benefit to the problem to resource make full use of simultaneously, has proposed the utility model discloses.
Therefore, the utility model aims to solve the problem of how to provide a device for utilizing the residual heat of high-temperature tail gas of a thermal power plant.
In order to solve the technical problem, the utility model provides a following technical scheme: a device for utilizing residual temperature of high-temperature tail gas of a thermal power plant comprises a heat exchanger, a temperature sensor, a temperature controller and a temperature controller, wherein the heat exchanger is used for exchanging heat between the heat exchanger and the heat exchanger;
the collecting mechanism comprises a collecting cylinder and a transmission assembly, and the transmission assembly is connected to one side of the upper end of the collecting cylinder;
the heat exchange mechanism comprises a heat exchange box, a water collecting hopper and a water storage assembly, the heat exchange box is connected to one side, away from the collecting cylinder, of the transmission assembly, the water collecting hopper is installed on two sides of the bottom end of the heat exchange box, and the water storage assembly is installed inside the heat exchange box.
Based on the technical characteristics: high temperature tail gas enters into the inside back of surge drum, will carry the heat transfer incasement through transmission assembly, and the staff can fill up water in water storage component in advance, and at this moment, the high temperature tail gas that gets into the heat transfer incasement can carry out heat transfer treatment through waste heat to the water that injects into in the water storage component, avoids the waste of the energy as far as possible, practices thrift the environmental protection.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: an air inlet pipe is installed on one side of the upper end of the collecting cylinder, an exhaust pipe is installed on one side of the lower end of the collecting cylinder, a sealing valve is installed on the exhaust pipe, and an air suction pump is installed on one side, far away from the collecting cylinder, of the exhaust pipe.
Based on the technical characteristics: the intake pipe is connected with the pipeline of discharging high temperature tail gas in the steam power plant, and inside these high temperature tail gas transmission to the chimney through the intake pipe, the blast pipe can with other needs preheat the pipe connection on the equipment, open the seal valve after that, start the aspiration pump and take out the high temperature tail gas of collecting in the chimney and carry can.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the transmission assembly comprises a transmission pipe connected between the collecting cylinder and the heat exchange box, a transmission pump is installed in the middle of the transmission pipe, and one-way valves are installed on two sides of the transmission pipe.
Based on the technical characteristics: if the high-temperature tail gas needs to be pumped out for heat exchange, the one-way valve on the transmission pipe is opened, the transmission pump is started, and the high-temperature tail gas entering the collecting cylinder is conveyed into the heat exchange box through the transmission pipe.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the upper end of the heat exchange box is connected with a water inlet pipe, the lower end of the heat exchange box is connected with a water drain pipe, and one side of the heat exchange box is connected with an emptying pipe.
Based on the technical characteristics: water needing heat exchange is injected into the water storage assembly through the water inlet pipe, and water after heat exchange is discharged through the water discharge pipe.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the ball valve is installed to the one end that inlet tube and drain pipe are close to the heat transfer case.
Based on the technical characteristics: the ball valve on the inlet tube can be opened during water injection, the ball valve on the drain pipe is closed, and the ball valve on the drain pipe is opened during drainage.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: and an emptying valve is installed at one end of the emptying pipe close to the heat exchange box, and a filter is installed in the middle of the emptying pipe.
Based on the technical characteristics: the high temperature tail gas temperature after the heat transfer also can reduce, and at this moment the staff can open the atmospheric valve on the blow-down pipe, makes in the tail gas gets into the blow-down pipe and outwards discharges after filtering through the filter, contains the foreign particles in the tail gas and causes the pollution to the surrounding environment.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the lower extreme of water collecting bucket is connected with the unloading pipe, installs the butterfly valve on the unloading pipe, and the through-hole has been seted up to the upper end of water collecting bucket.
Based on the technical characteristics: high temperature tail gas heat after the heat transfer will become liquid after the heat dissipation, and at this moment these liquid will assemble the water collecting bucket inside through the through-hole whereabouts and collect, avoid the waste of resource, when needs take out these liquid, only need open the butterfly valve on the unloading pipe, make the liquid that collects discharge through the unloading pipe can.
As a preferred scheme of a device that utilizes of steam power plant high temperature tail gas residual heat, wherein: the water storage assembly comprises a first annular pipe, a second annular pipe and branch pipes, the lower end of the water inlet pipe is connected with the first annular pipe, the second annular pipe is installed at the upper end of the water outlet pipe, and a plurality of groups of branch pipes are connected between the first annular pipe and the second annular pipe.
Based on the technical characteristics: the injected water rate firstly enters the first annular pipe and then flows into the second annular pipe through the branch pipe, so that the heat exchange between the waste heat of the high-temperature tail gas and the water is facilitated.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the first annular pipe and the second annular pipe are identical in structure, and the plurality of groups of branch pipes are distributed between the first annular pipe and the second annular pipe in an annular array shape.
Based on the technical characteristics: the heat exchange contact area can be increased, and the heat exchange efficiency is improved.
As a preferred scheme of a device that utilizes of high temperature tail gas waste heat of steam power plant, wherein: the flow divider is installed between first annular pipe and the second annular pipe, and be connected with between first annular pipe, the second annular pipe and the flow divider and connect the water pipe.
Based on the technical characteristics: the water that pours into passes through the shunt reposition of redundant personnel rethread and connects in water pipe evenly distributed arrives first ring pipe, makes things convenient for first ring pipe to fill water in the lateral pipe of multiunit fast.
The utility model discloses content beneficial effect does: inside back of high temperature tail gas entering the surge drum will carry the heat transfer incasement through transmission assembly, at this moment with the ball valve on shunt in the middle of the first ring pipe and the inlet tube open, the water that needs the heat transfer pours into water storage assembly into through the inlet tube into, the high temperature tail gas that gets into the heat transfer incasement at last can carry out the heat transfer through waste heat to the water that pours into in the water storage assembly and handle, avoids the waste of the energy as far as possible, practices thrift the environmental protection. The high temperature tail gas temperature after the heat transfer also can reduce, and the staff can open the blow-down pipe, makes in the tail gas gets into the blow-down pipe and outwards discharge after filtering through the filter, avoids containing the foreign particles in the tail gas and causes the pollution to the surrounding environment, and the high temperature tail gas heat after the heat transfer will become liquid after the heat dissipation, and at this moment these liquids will assemble the inside collection of collecting hopper through the through-hole whereabouts, avoid the waste of resource.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
FIG. 1 is an overall configuration diagram of a device for utilizing the residual temperature of high-temperature exhaust gas from a thermal power plant.
FIG. 2 is a view showing the internal structure of a heat exchange box of a device for utilizing the residual heat of high-temperature exhaust gas from a thermal power plant.
FIG. 3 is a structural diagram of a water storage unit of a device for utilizing the residual temperature of high-temperature exhaust gas from a thermal power plant.
In the drawings, the components represented by the respective reference numerals are listed below:
100. a collection mechanism; 101. a collection canister; 101a, an air inlet pipe; 101b, an exhaust pipe; 101c, a sealing valve; 101d, an air pump; 102. a transmission component; 102a, a transmission pipe; 102b, a transfer pump; 102c, a one-way valve; 200. a heat exchange mechanism; 201. a heat exchange box; 201a, a water inlet pipe; 201a-1, ball valve; 201b, a drain pipe; 201c, an emptying pipe; 201c-1 and an emptying valve; 201c-2, a filter; 202. a water collecting hopper; 202a, a blanking pipe; 202b, a butterfly valve; 202c, a through hole; 203. a water storage component; 203a, a first annular tube; 203a-1, a shunt; 203a-2, connecting a water pipe; 203b, a second annular tube; 203c, a branch pipe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1: referring to fig. 1, 2 and 3, for the first embodiment of the present invention, this embodiment provides a device for utilizing residual heat of high temperature exhaust gas of a thermal power plant, which includes a collecting mechanism 100, which includes a collecting cylinder 101 and a transmission assembly 102, the transmission assembly 102 is connected to one side of the upper end of the collecting cylinder 101, and one side of the upper end of the collecting cylinder 101 is installed with an air inlet pipe 101a; the heat exchange mechanism 200 comprises a heat exchange box 201, a water collecting hopper 202 and a water storage assembly 203, wherein the heat exchange box 201 is connected to one side, away from the collecting cylinder 101, of the transmission assembly 102, a water inlet pipe 201a is connected to the upper end of the heat exchange box 201, a water outlet pipe 201b is connected to the lower end of the heat exchange box 201, a ball valve 201a-1 is installed at one end, close to the heat exchange box 201, of the water inlet pipe 201a and the water outlet pipe 201b, an emptying pipe 201c is connected to one side of the heat exchange box 201, an emptying valve 201c-1 is installed at one end, close to the heat exchange box 201, of the emptying pipe 201c, a filter 201c-2 is installed in the middle of the emptying pipe 201c, and the water storage assembly 203 is installed inside the heat exchange box 201.
Further, the transmission assembly 102 comprises a transmission pipe 102a connected between the collecting cylinder 101 and the heat exchange box 201, a transmission pump 102b is installed in the middle of the transmission pipe 102a, and check valves 102c are installed on two sides of the transmission pipe 102 a.
Specifically, the water storage assembly 203 comprises a first annular pipe 203a, a second annular pipe 203b and a branch pipe 203c, the lower end of the water inlet pipe 201a is connected with the first annular pipe 203a, the upper end of the water outlet pipe 201b is provided with the second annular pipe 203b, and a multi-component branch pipe 203c is connected between the first annular pipe 203a and the second annular pipe 203 b. The first annular pipe 203a and the second annular pipe 203b have the same structure, a plurality of groups of branch pipes 203c are distributed between the first annular pipe 203a and the second annular pipe 203b in an annular array shape, so that the heat exchange contact area is increased, the heat exchange efficiency is improved, a flow divider 203a-1 is arranged between the first annular pipe 203a and the second annular pipe 203b, and a connecting water pipe 203a-2 is connected among the first annular pipe 203a, the second annular pipe 203b and the flow divider 203 a-1.
When the heat exchange device is used, the air inlet pipe 101a is connected with a pipeline for discharging high-temperature tail gas in a thermal power plant, the high-temperature tail gas is transmitted into the collecting cylinder 101 through the air inlet pipe 101a, then the one-way valve 102c on the transmission pipe 102a is opened, the transmission pump 102b is started, the high-temperature tail gas entering into the collecting cylinder 101 is transmitted into the heat exchange box 201 through the transmission pipe 102a, at this time, the flow divider 203a-1 in the middle of the first annular pipe 203a and the ball valve 201a-1 on the water inlet pipe 201a are opened, water needing heat exchange is injected through the water inlet pipe 201a, the water uniformly flows into the first annular pipe 203a through the flow divider 203a-1 and the connecting water pipe 203a-2, then the water is divided into the flow divider 203c and the second annular pipe 203b, meanwhile, the flow divider 203a-1 in the middle of the second annular pipe 203b and the ball valve 201a-1 on the water outlet pipe 201b are closed, and finally the high-temperature tail gas entering into the heat exchange box can carry out heat exchange treatment on the water injected into the water storage assembly 203 through waste, so that energy is avoided as much as possible, and the energy is saved and the environment is protected. After the water exchanges heat, the flow divider 203a-1 in the middle of the second annular pipe 203b and the ball valve 201a-1 on the water outlet pipe 201b can be opened, so that the water is finally discharged out through the water outlet pipe 201 b. And the temperature of the high-temperature tail gas after heat exchange is also reduced, at this time, a worker can open the emptying valve 201c-1 on the emptying pipe 201c, so that the tail gas enters the emptying pipe 201c and is discharged outside after being filtered by the filter 201c-2, and the pollution of the surrounding environment caused by impurity particles contained in the tail gas is avoided.
Example 2: referring to fig. 1, a second embodiment of the present invention is different from the first embodiment in that: an exhaust pipe 101b is mounted on the lower end side of the collecting vessel 101, a sealing valve 101c is mounted on the exhaust pipe 101b, and a suction pump 101d is mounted on the side of the exhaust pipe 101b away from the collecting vessel 101.
When the high-temperature tail gas entering the collecting cylinder 101 does not need to exchange heat with the water storage assembly 203, the check valve 102c and the transmission pump 102b on the transmission pipe 102a can be closed, one side of the air suction pump 101d is connected to the exhaust pipe 101b, the other side of the air suction pump 101d can be connected with other pipelines (such as a heating pipe used in winter or other pipelines needing preheating), and finally, the sealing valve 101c is only needed to be opened, the air suction pump 101d is started to pump out the high-temperature tail gas collected in the collecting cylinder 101 for conveying, so that the high-temperature tail gas can be used on other pipelines or equipment when the water heat exchange treatment is not performed.
Example 3: referring to fig. 2, a third embodiment of the present invention is different from the first two embodiments: water collecting hoppers 202 are mounted on two sides of the bottom end of the heat exchange box 201, the lower ends of the water collecting hoppers 202 are connected with blanking pipes 202a, butterfly valves 202b are mounted on the blanking pipes 202a, and through holes 202c are formed in the upper ends of the water collecting hoppers 202.
High temperature tail gas heat after the heat transfer after will become liquid after the heat dissipation, these liquid will assemble the inside collection of collecting hopper 202 through the through-hole 202c whereabouts at this moment, avoid the waste of resource, when needs take out these liquid, only need open the butterfly valve 202b on the unloading pipe 202a, make the liquid that assembles discharge through unloading pipe 202a can.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a device for utilizing residual heat of high temperature tail gas of steam power plant which characterized in that: comprises the following steps of;
the collecting mechanism (100) comprises a collecting cylinder (101) and a transmission assembly (102), wherein the transmission assembly (102) is connected to one side of the upper end of the collecting cylinder (101);
the heat exchange mechanism (200) comprises a heat exchange box (201), a water collecting hopper (202) and a water storage assembly (203), the heat exchange box (201) is connected to one side, away from the collecting cylinder (101), of the transmission assembly (102), the water collecting hopper (202) is installed on two sides of the bottom end of the heat exchange box (201), and the water storage assembly (203) is installed inside the heat exchange box (201).
2. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 1, wherein: an air inlet pipe (101 a) is installed on one side of the upper end of the collecting cylinder (101), an exhaust pipe (101 b) is installed on one side of the lower end of the collecting cylinder (101), a sealing valve (101 c) is installed on the exhaust pipe (101 b), and an air suction pump (101 d) is installed on one side, far away from the collecting cylinder (101), of the exhaust pipe (101 b).
3. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 1, wherein: the transmission assembly (102) comprises a transmission pipe (102 a) connected between the collecting cylinder (101) and the heat exchange box (201), a transmission pump (102 b) is installed in the middle of the transmission pipe (102 a), and check valves (102 c) are installed on two sides of the transmission pipe (102 a).
4. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 1, wherein: the upper end of heat exchange box (201) is connected with inlet tube (201 a), and the lower extreme of heat exchange box (201) is connected with drain pipe (201 b), and one side of heat exchange box (201) is connected with blow-down pipe (201 c).
5. The device for utilizing the residual heat of the high-temperature tail gas of the thermal power plant as claimed in claim 4, wherein: and ball valves (201 a-1) are arranged at one ends of the water inlet pipe (201 a) and the water outlet pipe (201 b) close to the heat exchange box (201).
6. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 4, wherein: and an emptying valve (201 c-1) is installed at one end of the emptying pipe (201 c) close to the heat exchange box (201), and a filter (201 c-2) is installed in the middle of the emptying pipe (201 c).
7. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 1, wherein: the lower extreme of water collecting bucket (202) is connected with unloading pipe (202 a), installs butterfly valve (202 b) on unloading pipe (202 a), and through-hole (202 c) have been seted up to the upper end of water collecting bucket (202).
8. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 1, wherein: the water storage assembly (203) comprises a first annular pipe (203 a), a second annular pipe (203 b) and a branch pipe (203 c), the lower end of the water inlet pipe (201 a) is connected with the first annular pipe (203 a), the second annular pipe (203 b) is installed at the upper end of the water outlet pipe (201 b), and a multi-component branch pipe (203 c) is connected between the first annular pipe (203 a) and the second annular pipe (203 b).
9. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 8, wherein: the first annular pipe (203 a) and the second annular pipe (203 b) have the same structure, and the plurality of groups of branch pipes (203 c) are distributed between the first annular pipe (203 a) and the second annular pipe (203 b) in an annular array.
10. The device for utilizing the residual temperature of the high-temperature tail gas of the thermal power plant as claimed in claim 8, wherein: a flow divider (203 a-1) is arranged between the first annular pipe (203 a) and the second annular pipe (203 b), and a connecting water pipe (203 a-2) is connected between the first annular pipe (203 a), the second annular pipe (203 b) and the flow divider (203 a-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418483.1U CN218821861U (en) | 2023-03-08 | 2023-03-08 | Device for utilizing residual temperature of high-temperature tail gas of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418483.1U CN218821861U (en) | 2023-03-08 | 2023-03-08 | Device for utilizing residual temperature of high-temperature tail gas of thermal power plant |
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| Publication Number | Publication Date |
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| CN218821861U true CN218821861U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320418483.1U Active CN218821861U (en) | 2023-03-08 | 2023-03-08 | Device for utilizing residual temperature of high-temperature tail gas of thermal power plant |
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| CN (1) | CN218821861U (en) |
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