CN218442374U - Row-tube transverse waste incineration flue gas quenching heat exchange device - Google Patents

Abstract

The application discloses horizontal formula msw incineration flue gas rapid cooling heat transfer device of tubulation relates to msw incineration flue gas rapid cooling heat transfer device's technical field. A row-tube transverse waste incineration flue gas quenching heat exchange device comprises a shell. The casing is hollow and includes: a flue gas heat exchange chamber in the middle; the smoke baffle plate divides the smoke heat exchange chamber into a first chamber and a second chamber which are communicated with each other, and a communication opening is formed between the first chamber and the second chamber; a first flue gas inlet and outlet; a second flue gas inlet and outlet; liquid cooling the interlayer; a plurality of liquid inlet and outlet ports which are communicated with each other and used for the inlet or the outlet of cooling liquid; a tube array set. The cooling liquid flows in a baffling manner in the shell, so that the contact heat exchange area of the cooling liquid and the high-temperature flue gas is increased, and a better cooling effect is achieved; the liquid cooling interlayer and the tube nest act simultaneously to exchange heat for high-temperature flue gas, and the heat exchange efficiency can be effectively improved.

Description

Row-tube transverse waste incineration flue gas quenching heat exchange device

Technical Field

The application relates to the technical field of waste incineration flue gas rapid cooling heat exchange devices, in particular to a waste incineration flue gas rapid cooling heat exchange device with a transverse row of tubes.

Background

With successive promotion of the fourteen-five planning and carbon peak reaching and carbon neutralization policies in China, great promotion of reduction and recycling of household garbage, promotion of household garbage incineration treatment and promotion of energy conservation and efficiency improvement of key energy utilization equipment are encouraged. The rapid cooling heat exchange device is used as a key device of a waste incineration system, rapidly cools flue gas through rapid cooling, shortens the retention time of the flue gas in a temperature area of 250-500 ℃, inhibits the secondary synthesis of dioxin in the flue gas of the system under a certain condition, and is also a key point for saving energy and increasing efficiency of the system.

At present, a contact spray quenching heat exchange device and a non-contact tube nest heat exchange device are commonly adopted as a waste incineration flue gas quenching heat exchange device. The contact spray quenching heat exchange device directly contacts the flue gas through the atomized cooling liquid, and the atomized liquid drops and the high-temperature flue gas realize flue gas quenching through mass transfer and heat transfer effects, however, the process easily causes large consumption of the cooling liquid, corrosion damage of the wall of the quenching tower, and phenomena of wet ash, wet bottom and ash blockage; in addition, the direct spray cooling technology brings partial pollutants in the flue gas into water to form high-pollution sewage containing dangerous waste components, and the treatment difficulty and cost are greatly increased. The non-contact tubulation heat transfer device is the most widely used heat transfer equipment in the chemical production at present, and cold and hot medium realizes the heat transfer through heat-conduction, thermal convection and heat radiation, and the medium is contactless, but cold source cyclic utilization is applicable to high temperature high pressure environment simultaneously. However, the tubes in the existing non-contact tube array heat exchange device directly penetrate from one end of the equipment shell to the other end of the equipment shell along the linear direction, so that the heat transfer effect is low; in order to meet the requirement of the cooling effect on the flue gas, the residence time of the flue gas in the equipment is too long, so that the uncooled flue gas is secondarily synthesized into dioxin in the equipment.

SUMMERY OF THE UTILITY MODEL

In order to improve msw incineration flue gas rapid cooling heat transfer device's heat transfer efficiency, reduce the cooling time of flue gas in heat transfer device, still in order to improve the operation convenience of pipeline clearance, this application provides a horizontal formula msw incineration flue gas rapid cooling heat transfer device of tubulation.

The application provides a row of horizontal formula msw incineration flue gas rapid cooling heat transfer device of pipe adopts following technical scheme:

a waste incineration flue gas quenching heat exchange device with a transverse tube array comprises

The shell is hollow and comprises a smoke heat exchange chamber in the middle;

the smoke gas heat exchange chamber is divided into a first chamber and a second chamber which are communicated by the smoke gas baffle plate, and a communication opening is formed between the first chamber and the second chamber;

the housing further comprises

The first flue gas inlet and outlet are communicated with the first chamber;

the second flue gas inlet and outlet are communicated with the second chamber;

the liquid cooling interlayer is arranged on the inner wall of the shell and is provided with a plurality of liquid inlet and outlet ports which are communicated and used for the cooling liquid to enter or discharge;

the row pipe group, the row Guan Zubao comprises a plurality of row pipes both ends of which are communicated with the liquid cooling interlayer,

the row tube group simultaneously penetrates through the first cavity, the second cavity and the smoke baffle plate, and is positioned between the first smoke inlet/outlet and the communication port and between the second smoke inlet/outlet and the communication port.

By adopting the technical scheme, the inner wall of the shell is provided with the liquid cooling interlayer, and the liquid inlet and outlet which are communicated with each other and used for the cooling liquid to enter or discharge are arranged, so that the cooling liquid can continuously circulate in the liquid cooling interlayer to flow out the heated cooling liquid, and the low-temperature cooling liquid continuously enters the liquid cooling interlayer for heat exchange; the flue gas baffling board divides the flue gas heat exchange chamber into the first cavity and the second cavity that are linked together, can carry out twice cooling processing through first cavity, second cavity in proper order when making high temperature flue gas get into the flue gas heat transfer, satisfies sharp quenching heat transfer device's elevation and arranges the requirement, has good cooling effect. Because both ends of the tube nest are communicated with the liquid cooling interlayer, cooling liquid can flow through the liquid cooling interlayer, the liquid cooling interlayer and the tube nest simultaneously act for heat exchange of high-temperature flue gas, and the heat exchange efficiency can be effectively improved; compared with the common tube array group which directly penetrates through the flue gas heat exchange chamber along the length direction of the flue gas heat exchange chamber, more tube array materials can be saved under the same heat exchange effect; the tube nest is set up between first flue gas is imported and exported and the intercommunication mouth and is located the second flue gas and imports and exports and the intercommunication mouth for high temperature flue gas can both carry out indirect contact with the coolant liquid in whole flue gas heat transfer indoor, has still improved the coolant liquid utilization ratio when realizing even cooling.

Optionally, a communication port is formed between the end of the flue gas baffle plate and the inner wall of the shell, the first flue gas inlet and outlet is communicated with one end of the first chamber far away from the communication port, and the second flue gas inlet and outlet is communicated with one end of the second chamber far away from the communication port.

By adopting the technical scheme, the communication port realizes the flue gas circulation between the first chamber and the second chamber, the first flue gas inlet and outlet are communicated with the first chamber, and the second flue gas inlet and outlet are communicated with the second chamber, so that external high-temperature flue gas can enter the first chamber from the first flue gas inlet and outlet, pass through the second chamber and then be discharged to the outside of the device through the second flue gas inlet and outlet; the communicating opening is positioned at one end far away from the first flue gas inlet and outlet or the second flue gas inlet and outlet so as to increase the heat exchange stroke of the flue gas.

Optionally, the liquid cooling interlayer includes a plurality of partition areas, two ends of the tube array are respectively communicated with different partition areas, and a partition area near the communication port and a partition area near the first flue gas inlet/outlet or the second flue gas inlet/outlet are provided with liquid inlet/outlet ports.

By adopting the technical scheme, the liquid inlet and outlet are used for discharging the cooling liquid into or out of the liquid cooling interlayer, the cold cooling interlayer is divided into a plurality of separation areas, and two ends of the tubes are respectively communicated with different separation areas, so that the cooling liquid flows into the next separation area from one separation area through the tubes, the flow of the cooling liquid in an up-down baffling mode is realized, the contact heat exchange area of the cooling liquid and the high-temperature flue gas is increased, the better cooling effect is achieved, and the cooling liquid can pass through the tubes in the flowing process.

Optionally, the tubes are arranged obliquely with respect to the flue gas baffle.

Through adopting above-mentioned technical scheme, the tubulation slope sets up to run through with in the flue gas heat transfer chamber, ensures to be filled with water in the tubulation, has effectively reduced when shutting down that the tubulation takes place electrochemical corrosion and damage probability.

Optionally, a flue gas inlet and outlet pipeline covering and communicating the first flue gas inlet and outlet and the second flue gas inlet and outlet is arranged on one side of the shell, the flue gas inlet and outlet pipeline comprises an air inlet pipe and a quenching exhaust pipe, a first opening and closing part used for opening and closing the air inlet pipe and the first flue gas inlet and outlet and a second opening and closing part used for opening and closing the air inlet pipe and the second flue gas inlet and outlet and a third opening and closing part used for opening and closing the first flue gas inlet and outlet and the quenching exhaust pipe and a fourth opening and closing part used for opening and closing the second flue gas inlet and outlet and the quenching exhaust pipe.

By adopting the technical scheme, the flue gas inlet and outlet pipeline covers and is communicated with the first flue gas inlet and outlet and the second flue gas inlet and outlet pipeline, and a first opening and closing piece, a second opening and closing piece and a third opening and closing piece are arranged in the flue gas inlet and outlet pipeline; the flow direction of the high-temperature flue gas can be changed by controlling the opening and closing states of the first opening and closing part, the second opening and closing part and the third opening and closing part; so that the high-temperature flue gas can be discharged after flowing into the second chamber from the first chamber and can also be discharged after flowing into the first chamber from the second chamber. After the flue gas exchanges heat in the same flow path for a long time, smoke dust accumulation can occur in the flue gas heat exchange chamber; the flue gas heat exchange flow direction is changed at the moment, the flue gas heat exchange chamber can be automatically swept, and the accumulation of smoke and dust in the flue gas heat exchange chamber is reduced.

Optionally, a plurality of ash removing openings communicated with the flue gas heat exchange chamber are formed in the side wall of the shell, and a first sealing cover capable of opening and closing the ash removing openings is arranged at one end, far away from the shell, of the ash removing openings.

By adopting the technical scheme, the arrangement of the ash cleaning port is convenient for cleaning the accumulated smoke dust of the heat exchange chamber and the tube nest wall due to long-term use; when the device is operated, the first sealing cover is closed, and the smoke heat exchange chamber is sealed; when the machine is stopped for cleaning, the first sealing cover is opened.

Optionally, temperature sensors are arranged at the air inlet pipe and the quenching exhaust pipe; the liquid inlet and outlet is also provided with a temperature sensor, and the outside of the shell is provided with a flow control piece for controlling the flow of cooling liquid of the liquid inlet and outlet.

Through adopting above-mentioned technical scheme, temperature sensor carries out real-time supervision to flue gas and coolant liquid temperature, adjusts the flow of the business turn over liquid outlet coolant liquid of input coolant liquid according to the temperature signal of the business turn over liquid outlet temperature sensor transmission of discharge coolant liquid, adjusts the initial temperature of input coolant liquid according to the temperature signal of the business turn over liquid outlet temperature sensor transmission of discharge coolant liquid to satisfy the heat transfer demand of high temperature flue gas.

Optionally, the outer surface of the shell is provided with an access hole communicated with the flue gas heat exchange chamber, and one end of the access hole, which is far away from the shell, is provided with a second sealing cover capable of opening and closing the access hole.

Through adopting above-mentioned technical scheme, when the device stopped the operation, open the second closing cap, conveniently clear up the smoke and dust of casing tip from access hole department.

Optionally, the casing is further provided with a cooling liquid emptying port communicated with the liquid cooling interlayer and a gas control piece for controlling gas in the liquid cooling interlayer to flow outwards.

By adopting the technical scheme, when the device runs, the intermittent on-off gas control piece discharges high-pressure steam generated by heating of cooling liquid in the cooling interlayer of the cooling liquid, so that the internal pressure cavity of the cooling interlayer of the cooling liquid is kept in a stable range.

Optionally, the first opening and closing member, the second opening and closing member, and the third opening and closing member are all flap check valves, and a heat-resistant layer is disposed on a closing side surface of the flap check valve.

Through adopting above-mentioned technical scheme, the side surface is closed to the flap check valve installs the heat-resistant layer, when the flue gas carries out reverse circulation, has reduced flap check valve upper temperature and has imported and exported or the second flue gas is imported and exported the exhaust cooling flue gas and produce the influence to first flue gas, and the prevention cooling flue gas is reheat and synthetic dioxin.

In summary, the present application includes at least one of the following benefits:

1. the flue gas baffle plate divides the flue gas heat exchange chamber into a first chamber and a second chamber which are communicated with each other, so that high-temperature flue gas can sequentially pass through the first chamber and the second chamber for two cooling treatments when entering the flue gas heat exchange, the elevation arrangement requirement of a rapid cooling heat exchange device is met, and a good cooling effect is achieved. The liquid interlayer and the tube nest are arranged on the inner side of the shell and act on the high-temperature flue gas at the same time to exchange heat, and the heat exchange efficiency can be effectively improved.

2. The flue gas inlet and outlet pipeline is additionally arranged, the flap type check valves are respectively arranged, the switching of the forward and reverse flow directions of the flue gas is realized by adjusting the opening and closing states of the flap type check valves, and the flue gas is enabled to circulate reversely to realize the independent ash removal of the flue gas heat exchange chamber.

3. A plurality of tube arrays are transversely arranged in the shell, and can be transformed from the side surface in situ when a single tube array is replaced, equipment does not need to be carried to a manufacturing factory for processing, and the maintenance cost is reduced.

4. The tubes are obliquely arranged, so that the tubes are ensured to be filled with water, the probability of electrochemical corrosion of the tubes during shutdown is effectively reduced, and the service life of the whole device is prolonged.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present application without a flue gas inlet and outlet duct;

FIG. 2 is a schematic diagram of the overall structure of the embodiment of the present application when placed vertically;

FIG. 3 is a schematic top view of an embodiment of the present application when placed vertically;

fig. 4 is a schematic side sectional view of an embodiment of the present application without a flue gas inlet and outlet pipe.

Description of reference numerals: 1. a housing; 11. a first flue gas inlet and outlet; 12. a second flue gas inlet and outlet; 13. liquid cooling the interlayer; 131. a semi-annular partition; 132. a separation zone; 14. a liquid inlet and outlet; 141. a flow control member; 15. a cooling liquid emptying port; 16. a pressure relief valve; 17. cleaning the ash hole; 18. an access hole; 2. a flue gas heat exchange chamber; 21. a first chamber; 22. a second chamber; 23. a communication port; 3. a flue gas baffle plate; 4. a thermal insulation layer; 5. a tube array set; 51. arranging pipes; 6. a flue gas inlet and outlet pipeline; 61. an air inlet pipe; 611. a first direct current tube; 612. a second straight flow pipe; 613. an air inlet auxiliary pipe; 62. quenching the exhaust pipe; 621. a first shunt pipe; 622. a second shunt pipe; 623. a quench bleed auxiliary pipe; 63. a first shutter; 64. a second shutter; 65. a third opening and closing member; 66. a fourth opening and closing member; 67. a heat resistant layer; 7. a temperature sensor; 8. a first sealing cover; 9. a second sealing cover.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a row tube transverse type waste incineration flue gas rapid cooling heat exchange device, refer to fig. 1 and fig. 2, a row tube transverse type waste incineration flue gas rapid cooling heat exchange device includes hollow casing 1, be formed with the flue gas heat exchange chamber 2 that is used for supplying the heat transfer of high temperature flue gas in the casing 1, be provided with the flue gas baffling board 3 that separates flue gas heat exchange chamber 2 for first cavity 21 and second cavity 22 in the casing 1, casing 1 is seted up with the same side with first flue gas import and export 11 of first cavity 21 intercommunication and with the second flue gas import and export 12 of second cavity 22 intercommunication, flue gas baffling board 3 and casing 1 keep away from first flue gas import and export 11 and second flue gas import and export 12 one side and form the intercommunication mouth 23, the intercommunication mouth 23 communicates first cavity 21 and second cavity 22.

1 outer wall parcel of casing has insulating layer 4, and insulating layer 4 specifically is the rock wool in this embodiment, and the rock wool is isolated with 1 heat of casing and outside operation environment, has improved the security of operating personnel when the operation.

Referring to fig. 1, a liquid cooling interlayer 13 for cooling high-temperature flue gas is disposed on an inner wall of a housing 1, and a plurality of liquid inlet and outlet ports 14 communicated with the liquid cooling interlayer 13 are welded on an outer wall of the housing 1, so that cooling liquid can enter or be discharged. A plurality of tube array groups 5 are arranged in the shell 1, and two groups are specifically arranged in the embodiment; the tube nest 5 comprises a plurality of tubes 51 with two ends communicated with the liquid cooling interlayer 13, the tubes 51 simultaneously penetrate through the first cavity 21, the second cavity 22 and the flue gas baffle plate 3, the contact positions of the outer tube wall of the tubes 51 with the flue gas heat exchange chamber 2 and the flue gas baffle plate 3 are welded and sealed, and the tubes 51 are positioned between the first flue gas inlet and outlet 11 and the communication port 23 and between the second flue gas inlet and outlet 12 and the communication port 23. The flue gas baffle plate 3 is transversely arranged in the shell 1, the tubes 51 are obliquely arranged relative to the flue gas baffle plate 3, the acute angle formed by the tubes and the flue gas baffle plate 3 is preferably 80 degrees in the embodiment, and when the device is stopped, the tubes 51 can be filled with cooling liquid, so that the probability of electrochemical corrosion caused by the fact that the tubes 51 are not filled with the cooling liquid and an air layer is effectively reduced.

Referring to fig. 1, when entering the flue gas from the first flue gas inlet and outlet 11 for heat exchange, the high-temperature flue gas can sequentially pass through the first chamber 21 and the second chamber 22 for two cooling treatments, so that the moving stroke and the flue gas cooling time are increased, the elevation arrangement requirement of the quenching heat exchange device is met, and a good cooling effect is achieved. The liquid cooling interlayer 13 arranged on the inner side of the shell 1 and the tube array 5 simultaneously exchange heat for high-temperature flue gas, so that the heat exchange efficiency can be effectively improved; compared with the common tube nest 5 which directly penetrates through the flue gas heat exchange chamber 2 along the length direction of the flue gas heat exchange chamber 2, the tube nest 51 in the tube nest 5 can save more tube nest 51 materials under the same heat exchange effect because the tube nest 51 simultaneously penetrates through the first chamber 21, the second chamber 22 and the flue gas baffle plate 3; this application is horizontal by conventional vertical adjustment for a plurality of shell nests 51 transverse arrangement in casing 1, can reform transform from the flank normal position when needing to change single shell nest 51, need not haulage equipment to manufacture factory processing, reduced cost of maintenance.

Referring to fig. 1, a semi-annular partition plate 131 is installed at intervals in the liquid cooling interlayer 13, the semi-annular partition plate 131 divides the liquid cooling interlayer 13 into a plurality of closed divided regions 132, and two ends of the tubes 51 are respectively communicated with the different divided regions 132. In this embodiment, two liquid inlets and outlets 14 are provided, which are respectively located at one end of the bottom of the casing 1 close to the second flue gas inlet and outlet 12 and at one end of the bottom of the casing 1 far from the second flue gas inlet and outlet 12.

The cooling liquid enters the liquid-cooled interlayer 13 from the liquid inlet/outlet 14 near the communication port 23, and sequentially enters the respective divided regions 132 in the liquid-cooled interlayer 13 through the tubes 51. Until the liquid cooling interlayer 13 is filled, and then flows out from the other liquid inlet and outlet 14. Under the action of the semi-annular partition plates 131 and the tubes 51, the cooling liquid flows in a baffling manner from bottom to top, so that the contact area between the high-temperature flue gas and the cooling liquid is increased, and the heat exchange efficiency is improved; the setting of partition 132 makes the coolant liquid baffling flow in liquid cooling intermediate layer 13 and tubulation 51 for liquid cooling intermediate layer 13 is filling the in-process of coolant liquid, and the coolant liquid also can flow into tubulation 51 fast, makes the holistic heat transfer effect of flue gas heat transfer chamber 2 more even.

Referring to fig. 2, a flue gas inlet and outlet pipeline 6 covering a first flue gas inlet and outlet 11 and a second flue gas inlet and outlet 12 is installed at one side of the housing 1, and the flue gas inlet and outlet pipeline 6 is communicated with the first flue gas inlet and outlet 11 and the second flue gas inlet and outlet 12.

Referring to fig. 2 and 3, the flue gas inlet and outlet pipeline 6 comprises an inlet pipe 61 and a quenching exhaust pipe 62, the inlet pipe 61 comprises a first straight pipe 611 and a second straight pipe 612 which are integrally formed with and communicated with an inlet sub-pipe 613 and the inlet sub-pipe 613, the first straight pipe 611 is directly communicated with the first flue gas inlet and outlet 11, and the second straight pipe 612 is directly communicated with the second flue gas inlet and outlet 12; the quenching exhaust pipe 62 comprises a quenching exhaust sub-pipe 623, and a first branch pipe 621 and a second branch pipe 622 which are integrally formed with and communicated with the quenching exhaust sub-pipe 623, wherein one end of the first branch pipe 621, which is far away from the quenching exhaust sub-pipe 623, is communicated with a first straight flow pipe 611, and one end of the second branch pipe 622, which is far away from the quenching exhaust sub-pipe 623, is communicated with a second straight flow pipe 612. The first straight flow pipe 611 is provided with a first opening and closing part 63, the secondary pipe of the air inlet pipe 61 is provided with an opening and closing part, the second opening and closing part 64 is positioned between the first straight flow pipe 611 and the second straight flow pipe 612, the second branch flow pipe 622 is provided with a third opening and closing part 65, the quenching exhaust secondary pipe 623 is provided with a fourth opening and closing part 66, and the fourth opening and closing part 66 is positioned between the first branch flow pipe 621 and the second branch flow pipe 622. In this embodiment, the first shutter 63, the second shutter 64, the third shutter 65, and the fourth shutter 66 are all flap type check valves. The first, second, third and fourth shutters 63, 64, 65 and 66 may be arranged to control the direction of the flow of the flue gas into and out of the flue gas duct.

Referring to fig. 1, temperature sensors 7 are fixed on the inner walls of the first flue gas inlet and outlet 11 and the second flue gas inlet and outlet 12 to detect the temperatures of the flue gases of the first flue gas inlet and outlet 11 and the second flue gas inlet and outlet 12, and an operator monitors the actual working conditions in real time through the temperature sensors 7 to adjust the opening and closing states of the flap check valves to switch the flow direction of the high-temperature flue gases. After the device operates for a period of time, the smoke layer can be accumulated in the smoke heat exchange chamber 2, the opening and closing of the four flap type check valves are controlled to change the flow direction of high-temperature smoke so that the high-temperature smoke can reversely flow in the device, and the smoke dust in the smoke heat exchange chamber 2 can be automatically swept.

Referring to fig. 1 and 2, the heat-resistant layer 67 is installed on the closing side surface of the flap check valve, so that when the flap check valve is controlled to be opened and closed to change the flow direction of flue gas, the influence of the temperature on the flap check valve on the cooling flue gas discharged from the first flue gas inlet/outlet 11 or the second flue gas inlet/outlet 12 is reduced, and the cooling flue gas is prevented from being reheated to synthesize dioxin.

Referring to fig. 1 and 2, temperature sensors 7 are also installed at the two liquid inlet and outlet ports 14, and a flow control member 141 is installed at one end of the exterior of the casing 1, which is close to one liquid inlet and outlet port 14, for real-time regulation and control of the flow rate of the cooling liquid, wherein the flow control member 141 is specifically a variable frequency motor in this embodiment; the flow of the cooling liquid of the liquid inlet and outlet 14 of the input cooling liquid is adjusted according to the temperature signal transmitted by the temperature sensor 7 of the liquid inlet and outlet 14 of the discharged cooling liquid, and the initial temperature of the input cooling liquid is adjusted according to the temperature signal transmitted by the temperature sensor 7 of the liquid inlet and outlet 14 of the discharged cooling liquid, so that the heat exchange requirement of high-temperature flue gas is met, and the temperature of the discharged flue gas is ensured to reach the discharge standard.

Referring to fig. 1 and 2, a plurality of ash removing openings 17 communicated with the flue gas heat exchange chamber 2 are formed in a side wall of the shell 1 opposite to the tube wall of the tube array 51, a first sealing cover 8 covers the ash removing openings 17, and the first sealing cover 8 is connected with the shell 1 in a hinged manner in a sealing manner. In this embodiment, the number of the dust removing openings 17 is four, and the dust removing openings 17 are provided to facilitate the cleaning of dust adhering to the surface of the tube nest 51. The side wall of one end of the shell 1, which is close to the liquid inlet/outlet 14, is welded with an access hole 18 communicated with the flue gas heat exchange chamber 2, the access hole 18 is opened to facilitate ash removal and equipment maintenance of the end part of the shell 1, the access hole 18 is covered with a second sealing cover 9, and the second sealing cover 9 is in sealing connection with the shell 1 in a hinged mode.

Referring to fig. 2 and 4, in order to facilitate evacuation of the cooling liquid under working conditions such as shutdown and maintenance of the device, a cooling liquid evacuation port 15 communicated with the liquid cooling interlayer 13 is welded on the shell 1, and the cooling liquid evacuation port 15 is located at one end of the shell 1 close to the circulation port; the one end that the 1 top of casing is close to second flue gas inlet and outlet 12 installs the accuse gas spare of the outside circulation of control liquid cooling intermediate layer 13 interior gas, and accuse gas spare specifically is relief valve 16 in this embodiment, and during the device operation, intermittent type nature opens and close relief valve 16 to discharge the high-pressure steam that the cooling liquid was heated and is produced in the cold intermediate layer 13 of liquid cooling, make the interior pressure chamber of liquid cooling intermediate layer 13 keep at stable within range.

The implementation principle of the row-tube transverse waste incineration flue gas quenching heat exchange device is as follows: when the device carries out flue gas quenching heat exchange, the ash cleaning port 17 and the access port 18 are both in a closed state, cooling liquid enters the liquid cooling interlayer 13 from one liquid inlet and outlet port 14, and is baffled from top to bottom along each partition 132 and the tubes 51 under the flow guiding effect of the semi-annular partition plate 131 until the liquid cooling interlayer 13 is filled, and then the cooling liquid is discharged from the other liquid inlet and outlet port 14.

The first opening and closing element 63 and the third opening and closing element 65 are opened, the second opening and closing element 64 and the fourth opening and closing element 66 are closed, the high-temperature flue gas flows into the first flue gas inlet and outlet 11 from the gas inlet sub-pipe 613 of the flue gas inlet and outlet pipeline 6 through the first straight flow pipe 611, enters the second chamber 22 after being cooled by the tube array 51 in the first chamber 21 to continue cooling, and finally flows into the second branch flow pipe 622 from the second straight flow pipe 612 to be discharged along the quenching exhaust sub-pipe 623 for subsequent treatment work of the device. When the high-temperature flue gas keeps flowing in one direction for a period of time, dust deposition occurs in the flue gas heat exchange chamber 2. At this time, the first shutter 63 and the third shutter 65 are closed, and the second shutter 64 and the fourth shutter 66 are opened, so that the high-temperature flue gas flows from the secondary flue gas inlet 613 of the flue gas inlet and outlet pipe 6 into the second flue gas inlet and outlet 12 through the second straight pipe 612, and flows from the second chamber 22 into the first chamber 2121 for reverse flow. During the process of reverse circulation, the flue gas will automatically purge the smoke in the flue gas heat exchange chamber 22, and the smoke will flow through the first straight flow pipe 611 and the first branch flow pipe 621 from the first flue gas inlet/outlet 11 together with the cooling flue gas, and is finally discharged along the quenching exhaust auxiliary pipe 623.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a horizontal formula msw incineration flue gas rapid cooling heat transfer device of tubulation which characterized in that: comprises that

The device comprises a shell (1), wherein the shell (1) is hollow and comprises a smoke heat exchange chamber (2) in the middle;

the flue gas heat exchange chamber (2) is divided into a first chamber (21) and a second chamber (22) which are communicated by the flue gas baffle plate (3), and a communication opening (23) is formed between the first chamber (21) and the second chamber (22);

the housing (1) further comprises

A first flue gas inlet/outlet (11), the first flue gas inlet/outlet (11) being in communication with the first chamber (21);

a second flue gas inlet/outlet (12), the second flue gas inlet/outlet (12) being in communication with the second chamber (22);

the liquid cooling interlayer (13), the liquid cooling interlayer (13) is arranged on the inner wall of the shell (1) and is provided with a plurality of liquid inlet and outlet ports (14) which are communicated and used for the entry or discharge of cooling liquid;

a tube array (5), wherein the tube array (5) comprises a plurality of tube arrays (51) both ends of which are communicated with the liquid cooling interlayer (13),

the row tube group (5) penetrates through the first cavity (21), the second cavity (22) and the smoke baffle plate (3) at the same time, and is located between the first smoke inlet/outlet (11) and the communication port (23) and between the second smoke inlet/outlet (12) and the communication port (23).

2. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 1, characterized in that: the communicating opening (23) is formed between the end part of the smoke baffle plate (3) and the inner wall of the shell (1), the first smoke inlet and outlet (11) is communicated with one end, away from the communicating opening (23), of the first cavity (21), and the second smoke inlet and outlet (12) is communicated with one end, away from the communicating opening (23), of the second cavity (22).

3. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 2, characterized in that: the liquid cooling interlayer (13) comprises a plurality of partition areas (132), two ends of the tube array (51) are respectively communicated with different partition areas (132), and a partition area (132) close to the communication port (23) and a partition area (132) close to the first smoke inlet/outlet (11) or the second smoke inlet/outlet (12) are provided with the liquid inlet/outlet (14).

4. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 1, characterized in that: the tubes (51) are arranged obliquely relative to the flue gas baffle plate (3).

5. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 1, characterized in that: the flue gas inlet and outlet device is characterized in that a flue gas inlet and outlet pipeline (6) which covers and is communicated with the first flue gas inlet and outlet (11) and the second flue gas inlet and outlet (12) is arranged on one side of the shell (1), the flue gas inlet and outlet pipeline (6) comprises a gas inlet pipe (61) and a quenching exhaust pipe (62), a first opening and closing piece (63) which is used for opening and closing the gas inlet pipe (61) and the first flue gas inlet and outlet (11) and communicated with each other, a second opening and closing piece (64) which is used for opening and closing the gas inlet pipe (61) and the second flue gas inlet and outlet (12) and communicated with each other, a third opening and closing piece (65) which is used for opening and closing the first flue gas inlet and outlet (11) and the quenching exhaust pipe (62) and a fourth opening and closing piece (66) which is used for opening and closing the second flue gas inlet and outlet (12) and the quenching exhaust pipe (62) and communicated with each other are arranged in the flue gas inlet and outlet (6) and communicated with each other.

6. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 1, characterized in that: the side wall of the shell (1) is provided with a plurality of ash removing openings (17) communicated with the flue gas heat exchange chamber (2), and one end, far away from the shell (1), of each ash removing opening (17) is provided with a first sealing cover (8) used for opening and closing the ash removing openings (17).

7. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 5, characterized in that: temperature sensors (7) are arranged at the air inlet pipe (61) and the quenching exhaust pipe (62); temperature sensors (7) are installed at the liquid inlet and outlet (14), and a flow control piece (141) used for controlling the flow of cooling liquid of the liquid inlet and outlet (14) is arranged outside the shell (1).

8. The quenching and heat-exchanging device for the flue gas generated in the horizontal garbage incineration of the tube array as claimed in claim 1, characterized in that: the outer surface of the shell (1) is provided with an access hole (18) communicated with the flue gas heat exchange chamber (2), and one end, far away from the shell (1), of the access hole (18) is provided with a second sealing cover (9) capable of opening and closing the access hole (18).

9. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 1, characterized in that: the shell (1) is also provided with a cooling liquid emptying port (15) communicated with the liquid cooling interlayer (13) and a gas control piece for controlling the gas in the liquid cooling interlayer (13) to flow outwards.

10. The tubular transverse waste incineration flue gas quenching heat exchange device of claim 5, characterized in that: the first opening and closing piece (63), the second opening and closing piece (64), the third opening and closing piece (65) and the fourth opening and closing piece (66) are all flap type check valves, and the closing side surfaces of the flap type check valves are provided with temperature-resistant layers.

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