CN216481071U

CN216481071U - Flue gas waste heat recovery and heat exchange equipment for boiler

Info

Publication number: CN216481071U
Application number: CN202123258643.0U
Authority: CN
Inventors: 周永权; 卜双娣
Original assignee: Jiangsu Shunke Technology Co ltd
Current assignee: Jiangsu Shunke Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-10
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a flue gas waste heat recovery and heat exchange device for a boiler, which relates to the field of boiler waste gas and comprises a fixed frame, wherein the upper side of the fixed frame is fixedly connected with a boiler body, one side of the boiler body is provided with a connecting flange, one side of the connecting flange, which is far away from the boiler body, is provided with a transmission pipe, the transmission pipe is communicated with the inside of the boiler body, the outer side of the transmission pipe is provided with a pressure reducing valve, one end of the pressure reducing valve, which is far away from the boiler body, is provided with a heat exchange mechanism, the problem that the efficiency is not high when the heat in the waste gas is absorbed by the existing partial heat exchange device is improved, so that more heat is still wasted is solved, the heat exchange box in the device can play a role in storing the waste gas transmitted by the transmission pipe, the waste gas is not easy to directly flow into the air, a fixed pipe is arranged between a first copper plate and a second copper plate, and the first copper plate and the second copper plate can play roles in absorbing and transmitting heat, thereby enabling the heat in the exhaust gas to be absorbed.

Description

Flue gas waste heat recovery and heat exchange equipment for boiler

Technical Field

The utility model relates to a main boiler waste gas technical field, more specifically say, relate to a flue gas waste heat recovery indirect heating equipment for boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, the boiler for supplying hot water is called as a hot water boiler, and the hot water boiler is mainly used for life and has a small amount of application in industrial production. The boiler for generating steam is called as a steam boiler, often called as a boiler for short, and is widely used for thermal power stations, ships, locomotives and industrial and mining enterprises.

The utility model discloses a be CN 211854935U's utility model, a coke oven flue gas waste heat recovery boiler after denitration is disclosed, including the waste heat recovery boiler body, the inboard fixedly connected with level of the waste heat recovery boiler body sets up at the baffle, the outside fixedly connected with motor of the waste heat recovery boiler body, the one end of fixedly connected with worm on the output shaft of motor, the other end of worm extends to in the waste heat recovery boiler body and fixed the cup joint has the auger, bottom one side intercommunication of the waste heat recovery boiler body has the laying dust box, the inboard intercommunication of laying dust box has the bottom of raceway, the top of raceway extends to the top and the intercommunication of baffle has the shower, the bottom side intercommunication of shower has a plurality of shower nozzles. The utility model has the advantages of reasonable design, the clear water in the waste heat recovery boiler body can be abundant spray on the spiral pipe surface, has effectively improved heat exchange rate, and conveniently clears up the incrustation scale that produces in the waste heat recovery boiler body, and heat recovery efficiency is high, facilitates the use.

The boiler can the higher waste gas of discharge temperature after using among the prior art, and the waste gas is inside to contain higher heat, and these heats most all can be absorbed by heat transfer device to make the heat in the waste gas can used repeatedly, but current partial heat transfer device when absorbing the heat in the waste gas, efficiency is not high, thereby makes still to have more heat to be wasted.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a flue gas waste heat recovery indirect heating equipment for boiler, it can be effectual when solving current partial heat transfer device and absorbing the heat in the waste gas, efficiency is not high to the feasible more heat of still being had is by extravagant problem.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides a flue gas waste heat recovery indirect heating equipment for boiler, includes the mount, the upside fixedly connected with boiler body of mount, one side of boiler body is provided with flange, one side that flange kept away from boiler body is provided with the transmission pipe, the transmission pipe is linked together with boiler body's inside, the outside of transmission pipe is provided with the pressure reducing valve, the one end that boiler body was kept away from to the pressure reducing valve is provided with heat transfer mechanism, can effectually improve current partial heat transfer device through above-mentioned scheme when absorbing the heat in the waste gas, and efficiency is not high to make more heat still to have the problem of being wasted.

As a preferred scheme of the utility model, heat transfer mechanism includes the heat transfer case of fixed connection in transmission pipe one end, the heat transfer case is linked together with the transmission pipe, the first copper of inside fixedly connected with and the second copper of heat transfer case, be provided with fixed pipe between first copper and the second copper, the outside fixedly connected with transmission copper of fixed pipe, the both sides of transmission copper respectively with first copper and second copper between fixed connection, the hollow groove has been seted up to the inside of heat transfer case, the heat transfer case is located the inside fixedly connected with heat preservation cotton in hollow groove.

As a preferred scheme of the utility model, the heat transfer case is run through to the upper end of fixed pipe, the upside fixedly connected with water injection piece of heat transfer case, water injection piece is linked together with fixed pipe.

As a preferred scheme of the utility model, the one end of fixed pipe runs through the heat transfer case, one side fixedly connected with drainage piece of heat transfer case, drainage piece is linked together with fixed pipe, one side that the heat transfer case was kept away from to the drainage piece articulates through the hinge activity has the hinge door plant.

As a preferred scheme of the utility model, one side fixedly connected with blast pipe of boiler body is kept away from to the heat transfer case, the blast pipe is linked together with the heat transfer case, the inside fixedly connected with filter screen and the active carbon board of blast pipe.

As a preferred scheme of the utility model, the downside fixedly connected with support frame of heat transfer case, the downside activity joint of heat transfer case has the storehouse of catchmenting, the storehouse of catchmenting is linked together with the inside of heat transfer case, the heat transfer case sets up the inboard at the support frame.

Compared with the prior art, the utility model has the advantages of:

1. the heat transfer case can play the storage effect to the waste gas that the transmission pipe transmitted in this device for during waste gas is difficult for directly flowing into the air, the first copper of inside fixedly connected with and the second copper of heat transfer case, be provided with fixed pipe between first copper and the second copper, first copper and second copper can play the effect of absorption and transmission heat, thereby make the heat in the waste gas can be adsorbed.

2. First copper and second copper still can play spacing and fixed effect to the transmission copper in this device for the transmission copper can be smooth use, the both sides of transmission copper respectively with first copper and second copper between fixed connection, the transmission copper is the same with first copper and second copper effect, can play the adsorption to the heat of the inside waste gas of heat transfer case.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the heat exchange box in the embodiment of the present invention;

fig. 3 is a schematic structural view of a hinged door panel according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the first copper plate and the second copper plate in the embodiment of the present invention;

FIG. 5 is a schematic view of a sectional structure of heat-insulating cotton according to an embodiment of the present invention;

fig. 6 is the schematic sectional structure diagram of the heat exchange box in the embodiment of the present invention.

The numbering in the figures illustrates:

1. a boiler body; 2. a fixed mount; 3. a connecting flange; 4. a conveying pipe; 5. a pressure reducing valve; 61. a heat exchange box; 62. a first copper plate; 63. a second copper plate; 64. a transmission copper plate; 65. a fixed tube; 66. a hollow groove; 67. heat preservation cotton; 7. a support frame; 81. an exhaust pipe; 82. a filter screen; 83. an activated carbon plate; 91. a water injection block; 92. a drainage block; 10. a water collecting bin; 11. a hinged door panel.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example 1

Referring to fig. 1-6, a flue gas waste heat recovery and heat exchange device for a boiler comprises a fixing frame 2, a boiler body 1 is fixedly connected to the upper side of the fixing frame 2, the fixing frame 2 can support and fix the boiler body 1, so that the boiler body 1 is more stable and firm when in use and is not easy to deviate, a connecting flange 3 is arranged on one side of the boiler body 1, a transmission pipe 4 is arranged on one side of the connecting flange 3 away from the boiler body 1, the transmission pipe 4 is communicated with the inside of the boiler body 1, the connecting flange 3 can be used for connecting the boiler body 1 and the transmission pipe 4, so that waste gas inside the boiler body 1 can smoothly enter the inside of the transmission pipe 4, a pressure reducing valve 5 is arranged on the outer side of the transmission pipe 4, because gas inside the boiler body 1 has higher heat, and meanwhile, the inside of the boiler body 1 is in a relatively closed space, this makes the inside high temperature waste gas of boiler body 1, and pressure is higher, and reducing valve 5 can play the step-down effect to the inside high temperature waste gas of transfer pipe 4 for transfer pipe 4 can normally use, and reducing valve 5 can select different models according to actual conditions, for example: suluo-30405853632, the one end that the boiler body 1 was kept away from to pressure reducing valve 5 is provided with heat transfer mechanism, and heat transfer mechanism can play the collection effect to the heat of the inside waste gas of boiler body 1 to make the inside heat of waste gas can recycle, thereby played certain energy-conserving effect, what need notice simultaneously, heat transfer mechanism's size can carry out different adjustments according to actual conditions.

Specifically, the heat exchange mechanism comprises a heat exchange box 61 fixedly connected to one end of a transmission pipe 4, the heat exchange box 61 is communicated with the transmission pipe 4, the heat exchange box 61 can store the waste gas transmitted by the transmission pipe 4, so that the waste gas is not easy to directly flow into the air, a first copper plate 62 and a second copper plate 63 are fixedly connected to the inside of the heat exchange box 61, a fixing pipe 65 is arranged between the first copper plate 62 and the second copper plate 63, the first copper plate 62 and the second copper plate 63 can absorb and transmit heat, so that the heat in the waste gas can be absorbed, a water source can be added to the inside of the fixing pipe 65, meanwhile, the fixing pipe 65 can collect and exchange the heat contained in the waste gas through the water source added to the inside of the fixing pipe 65, the transmission copper plate 64 is fixedly connected to the outer side of the fixing pipe 65, the first copper plate 62 and the second copper plate 63 can also play a role in limiting and fixing to the transmission copper plate 64, so that the transmission copper plate 64 can be smoothly used, the two sides of the transmission copper plate 64 are respectively and fixedly connected with the first copper plate 62 and the second copper plate 63, the transmission copper plate 64 has the same action with the first copper plate 62 and the second copper plate 63, the transmission copper plate 64 can absorb the heat of the waste gas in the heat exchange box 61, meanwhile, the transmission copper plate 64 can also conduct the first copper plate 62 and the second copper plate 63, the heat absorbed by the first copper plate 62 and the second copper plate 63 can be smoothly transmitted to the outer side of the fixed pipe 65, the hollow groove 66 is arranged in the heat exchange box 61, the heat exchange box 61 is fixedly connected with the heat insulation cotton 67 in the hollow groove 66, the heat exchange box 61 can perform the limiting and fixing action on the heat insulation cotton 67 through the hollow groove 66, the heat insulation cotton 67 can be normally used, and the heat insulation cotton 67 can perform certain blocking and heat insulation action on the heat in the heat exchange box 61, so that the temperature of the exhaust gas inside the heat exchange box 61 is not easily affected by the outside temperature.

Example 2

Referring to fig. 1-6, the upper end of the fixed pipe 65 penetrates through the heat exchange box 61, the water injection block 91 is fixedly connected to the upper side of the heat exchange box 61, the water injection block 91 is communicated with the fixed pipe 65, the arrangement of the water injection block 91 can facilitate a worker to add a water source to the inside of the fixed pipe 65, and meanwhile, the water injection block 91 can be connected with an external water source and a water pump according to actual conditions, so that the inside of the fixed pipe 65 can be filled with the water source, and the heat exchange mechanism can be normally used.

It is specific, heat transfer case 61 is run through to the one end of fixed pipe 65, one side fixedly connected with drainage piece 92 of heat transfer case 61, drainage piece 92 is linked together with fixed pipe 65, the inside water source of fixed pipe 65 is when the thrust that receives outside water pump, can flow, and drainage piece 92 can play the collection and storage effect to the water source after the heat absorption, thereby conveniently take out and unified the processing with the water source after the heat absorption, one side that heat transfer case 61 was kept away from to drainage piece 92 articulates through the hinge activity has hinge door plant 11, hinge door plant 11 can play the effect of closing and opening drainage piece 92, make the staff can be more convenient take out the inside water source of drainage piece 92.

Specifically, one side fixedly connected with blast pipe 81 that heat transfer case 61 kept away from boiler body 1, blast pipe 81 is linked together with heat transfer case 61, inside waste gas accessible blast pipe 81 by after the heat transfer of heat transfer case 61 is discharged into the air, the inside fixedly connected with filter screen 82 and the active carbon board 83 of blast pipe 81, though the heat of waste gas is absorbed, the inside impurity and the dust that contains of waste gas still can cause certain pollution to the air, and filter screen 82 and active carbon board 83 can play certain hindrance and adsorption to dust and impurity in the waste gas, thereby further reduction waste gas is to the pollution of air.

In particular, the lower side of the heat exchange box 61 is fixedly connected with a support frame 7, the support frame 7 can support and heighten the heat exchange box 61, so that the heat exchange box 61 has higher stability when in use, the lower side of the heat exchange box 61 is movably clamped with the water collecting bin 10, the water collecting bin 10 is communicated with the inside of the heat exchange box 61, when the exhaust gas inside the heat exchange box 61 contacts the fixed pipe 65, due to the high heat in the exhaust gas, water vapor is generated inside the heat exchange box 61 to condense into water drops, if the water drops are not treated, after a long time of use, the water drops may cause oxidation corrosion to the heat exchange box 61, and the storehouse 10 that catchments then can play the storage effect to the drop of water, makes things convenient for the staff to handle the inside drop of water of heat transfer case 61, and heat transfer case 61 sets up in the inboard of support frame 7, because of support frame 7 to the support and the bed hedgehopping of heat transfer case 61 for the storehouse 10 that catchments can be smooth places in the downside of heat transfer case 61.

The utility model discloses a theory of operation and use flow: when the device is used, the transmission pipe 4 is firstly connected with the boiler body 1 through the connecting flange 3, when the boiler body 1 is used, high-temperature waste gas discharged from the interior of the boiler body 1 flows into the transmission pipe 4, meanwhile, the high-temperature waste gas is subjected to pressure reduction by the pressure reduction valve 5 when flowing, then, the waste gas subjected to pressure reduction flows into the interior of the heat exchange box 61 through the transmission pipe 4, at the moment, a worker can connect the water injection block 91 with an external water source to ensure that the interior of the fixed pipe 65 has a sufficient water source, meanwhile, the heat of the high-temperature waste gas in the interior of the heat exchange box 61 is absorbed by the first copper plate 62 and the second copper plate 63 and is transmitted to the fixed pipe 65 through the transmission copper plate 64, at the moment, the temperature of the fixed pipe 65 is increased, meanwhile, the heat of the fixed pipe 65 is absorbed by the water source in the interior of the fixed pipe 65 and flows into the interior of the water discharge block 92 through the thrust of the external water pump, therefore, heat exchange of the waste gas is achieved, the waste gas after heat absorption is discharged from the exhaust pipe 81, impurities contained in the waste gas are adsorbed and filtered by the filter screen 82 and the activated carbon plate 83 when the waste gas is discharged, and accordingly the problem that when the heat in the waste gas is absorbed by the existing partial heat exchange device, the efficiency is not high, and more heat is wasted is solved.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a flue gas waste heat recovery indirect heating equipment for boiler, includes mount (2), its characterized in that: the boiler comprises a fixing frame (2) and is characterized in that a boiler body (1) is fixedly connected to the upper side of the fixing frame (2), a connecting flange (3) is arranged on one side of the boiler body (1), a transmission pipe (4) is arranged on one side, away from the boiler body (1), of the connecting flange (3), the transmission pipe (4) is communicated with the inside of the boiler body (1), a pressure reducing valve (5) is arranged on the outer side of the transmission pipe (4), and a heat exchange mechanism is arranged at one end, away from the boiler body (1), of the pressure reducing valve (5).

2. The flue gas waste heat recovery and heat exchange device for the boiler according to claim 1, characterized in that: the heat exchange mechanism comprises a heat exchange box (61) fixedly connected to one end of a transmission pipe (4), the heat exchange box (61) is communicated with the transmission pipe (4), a first copper plate (62) and a second copper plate (63) are fixedly connected to the inside of the heat exchange box (61), a fixing pipe (65) is arranged between the first copper plate (62) and the second copper plate (63), a transmission copper plate (64) is fixedly connected to the outer side of the fixing pipe (65), the two sides of the transmission copper plate (64) are fixedly connected with the first copper plate (62) and the second copper plate (63) respectively, a hollow groove (66) is formed in the inside of the heat exchange box (61), and the heat exchange box (61) is located inside of the hollow groove (66) and is fixedly connected with heat insulation cotton (67).

3. The flue gas waste heat recovery and heat exchange device for the boiler according to claim 2, characterized in that: the upper end of the fixed pipe (65) penetrates through the heat exchange box (61), the upper side of the heat exchange box (61) is fixedly connected with a water injection block (91), and the water injection block (91) is communicated with the fixed pipe (65).

4. The flue gas waste heat recovery and heat exchange device for the boiler according to claim 2, characterized in that: the one end of fixed pipe (65) runs through heat transfer case (61), one side fixedly connected with drainage block (92) of heat transfer case (61), drainage block (92) are linked together with fixed pipe (65), one side that heat transfer case (61) were kept away from in drainage block (92) articulates through the hinge activity has hinge door plant (11).

5. The flue gas waste heat recovery and heat exchange device for the boiler according to claim 2, characterized in that: one side fixedly connected with blast pipe (81) of boiler body (1) are kept away from to heat transfer case (61), blast pipe (81) are linked together with heat transfer case (61), the inside fixedly connected with filter screen (82) and activated carbon plate (83) of blast pipe (81).

6. The flue gas waste heat recovery and heat exchange device for the boiler according to claim 2, characterized in that: the heat exchanger is characterized in that a support frame (7) is fixedly connected to the lower side of the heat exchange box (61), a water collecting bin (10) is movably clamped to the lower side of the heat exchange box (61), the water collecting bin (10) is communicated with the inside of the heat exchange box (61), and the heat exchange box (61) is arranged on the inner side of the support frame (7).