CN213395251U - Two-stage waste heat boiler - Google Patents
Two-stage waste heat boiler Download PDFInfo
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- CN213395251U CN213395251U CN202120832577.4U CN202120832577U CN213395251U CN 213395251 U CN213395251 U CN 213395251U CN 202120832577 U CN202120832577 U CN 202120832577U CN 213395251 U CN213395251 U CN 213395251U
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Abstract
The utility model discloses a two-stage waste heat boiler relates to waste heat boiler equipment technical field, and the main objective provides a can reduce the two-stage type waste heat boiler of the temperature difference between import pipe case and the shell side barrel. The utility model discloses a main technical scheme does: a two-stage waste heat boiler comprising: a first housing; the air inlet shell and the air outlet shell are respectively arranged at two ends of the heat exchange shell, a first cavity is formed between the first shell and the heat exchange shell, a second cavity is formed in the heat exchange shell, and the first cavity is communicated with the heat exchange shell; the tube side component penetrates through the heat exchange shell and is communicated with the air inlet shell and the air outlet shell; and the two ends of the first circulating pipe are communicated with the first shell, the first cooling shell is wrapped outside the air inlet shell, the two ends of the second circulating pipe are communicated with the first shell, and the second cooling shell is wrapped outside the exhaust shell. The utility model discloses mainly used heat exchange.
Description
Technical Field
The utility model relates to a waste heat boiler equipment technical field especially relates to a two-stage type waste heat boiler.
Background
The waste heat boiler is a boiler for heating water or steam by utilizing waste heat in an industrial production process, and generally comprises a shell side barrel, a heat exchange tube, a steam drum barrel, an inlet tube box and an outlet tube box, wherein the heat exchange tube is arranged in the shell side barrel, the inlet tube box and the outlet tube box are arranged at two ends of the heat exchange tube, the steam drum barrel is connected to the shell barrel, waste heat gas enters the heat exchange tube from the inlet tube box and is then discharged through the outlet tube box, and water or steam to be heated is heated through the shell side barrel and then enters the steam drum barrel.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a two-stage waste heat boiler, and mainly aims to provide a two-stage waste heat boiler capable of reducing the temperature difference between an inlet pipe box and a shell side cylinder.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the embodiment of the utility model provides a two-stage type exhaust heat boiler, include:
the device comprises a first shell, a second shell and a control unit, wherein two ends of the first shell are provided with a first opening and a second opening;
the second shell comprises an air inlet shell, a heat exchange shell and an air outlet shell, the two ends of the heat exchange shell are respectively blocked with the first opening and the second opening, the air inlet shell and the air outlet shell are respectively arranged at the two ends of the heat exchange shell, a first cavity is arranged between the first shell and the heat exchange shell, a second cavity is arranged in the heat exchange shell, and the first cavity is communicated with the heat exchange shell;
the tube side component penetrates through the heat exchange shell and is communicated with the air inlet shell and the exhaust shell;
the cooling part, the cooling part includes first cooling casing, second cooling casing, first circulating pipe and second circulating pipe, the both ends of first circulating pipe with first casing communicates each other, first cooling casing parcel is in the outside of casing admits air, first circulating pipe sets up first cooling casing with between the casing admits air, the both ends of second circulating pipe with first casing communicates each other, second cooling casing parcel is in the outside of exhaust casing, the second circulating pipe sets up second cooling casing with between the exhaust casing.
Furthermore, the other end side of the first shell is provided with a first water inlet pipe, a second water inlet pipe is arranged between the first cavity and the second cavity, and the second water inlet pipe is arranged on one end side of the heat exchange shell.
Further, the fireproof shell comprises a first fireproof shell and a second fireproof shell, the first fireproof shell is wrapped outside the first cooling shell and connected to the first shell, and the second fireproof shell is wrapped outside the second cooling shell and connected to the first shell.
Further, the flame retardant coating comprises a first flame retardant coating and a second flame retardant coating, the first flame retardant coating is arranged between the first flame retardant casing and the air inlet casing, and the second flame retardant coating is arranged between the second flame retardant casing and the exhaust casing.
Furthermore, the number of the second shells is two, the second shells are respectively a high-temperature shell and a low-temperature shell, and the first shells are respectively wrapped outside the heat exchange shell of the high-temperature shell and outside the heat exchange shell of the low-temperature shell.
Further, the exhaust housing of the high temperature housing and the intake housing of the low temperature housing are communicated with each other.
Further, trident connecting piece includes first clevis, second clevis and third clevis, first clevis connect in tube side part, the second clevis connect in the heat transfer casing, the third clevis connect in the casing of admitting air perhaps exhaust casing.
Furthermore, the second connecting fork and the third connecting fork are located on the same plane, and the first connecting fork is of an arc-shaped structure.
Further, the one end of second clevis has the second and connects the arch, the second is connected the arch and is had first connection limit and second connection limit, first connection limit with first angle has between the second connection limit, the scope of first angle is 115 degrees to 125 degrees, the second is connected the arch and is had third connection limit and fourth connection limit, the third connect the limit with the fourth connection has the second angle between the limit, the scope of second angle is 115 degrees to 125 degrees.
Compared with the prior art, the utility model discloses following technological effect has:
in the technical scheme provided by the embodiment of the utility model, the first shell is used for preheating water, and the two ends of the first shell are provided with a first opening and a second opening; the second shell is used for exchanging heat with waste hot gas and comprises an air inlet shell, a heat exchange shell and an air outlet shell, two ends of the heat exchange shell are respectively blocked with a first opening and a second opening, the air inlet shell and the air outlet shell are respectively arranged at two ends of the heat exchange shell, a first cavity is arranged between the first shell and the heat exchange shell, a second cavity is arranged in the heat exchange shell, and the first cavity is communicated with the heat exchange shell; the tube pass component is used for conveying the waste heat gas component, penetrates through the heat exchange shell and is communicated with the gas inlet shell and the gas outlet shell; the cooling component is used for reducing the temperature in the air inlet shell and the air outlet shell, and comprises a first cooling shell, a second cooling shell, a first circulating pipe and a second circulating pipe, wherein two ends of the first circulating pipe are communicated with the first shell, the first cooling shell is wrapped outside the air inlet shell, the first circulating pipe is arranged between the first cooling shell and the air inlet shell, two ends of the second circulating pipe are communicated with the first shell, the second cooling shell is wrapped outside the air outlet shell, the second circulating pipe is arranged between the second cooling shell and the air outlet shell, compared with the prior art, the heat exchange pipe is arranged in a shell pass cylinder, an inlet pipe box and an outlet pipe box are arranged at two ends of the heat exchange pipe, the steam pocket cylinder is connected with the shell cylinder, waste hot gas enters the heat exchange pipe from the inlet pipe box and then is discharged from the outlet pipe box, and water or steam to be heated enters the steam pocket cylinder after being heated by the shell pass through the shell pass cylinder, however, because the temperature difference between the inlet pipe box and the shell pass cylinder is large, the shell pass cylinder is easy to deform, thereby the situations such as air leakage are caused, the use load of the shell pass cylinder is increased, and the safety of the equipment is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a two-stage waste heat boiler provided in an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of the present invention provides a two-stage waste heat boiler, including:
a first housing 1, both ends of the first housing 1 having a first opening and a second opening;
the second shell comprises an air inlet shell 21, a heat exchange shell 22 and an air outlet shell 23, two ends of the heat exchange shell 22 are respectively blocked with a first opening and a second opening, the air inlet shell 21 and the air outlet shell 23 are respectively arranged at two ends of the heat exchange shell 22, a first cavity 11 is arranged between the first shell 1 and the heat exchange shell 22, a second cavity 221 is arranged in the heat exchange shell 22, and the first cavity 11 is communicated with the heat exchange shell 22;
the tube side component 3, the tube side component 3 penetrates through the heat exchange shell 22 and is communicated with the air inlet shell 21 and the air outlet shell 23;
the cooling part comprises a first cooling shell 41, a second cooling shell 42, a first circulating pipe 43 and a second circulating pipe 44, two ends of the first circulating pipe 43 are communicated with the first shell 1, the first cooling shell 41 is wrapped outside the air inlet shell 21, the first circulating pipe 43 is arranged between the first cooling shell 41 and the air inlet shell 21, two ends of the second circulating pipe 44 are communicated with the first shell 1, the second cooling shell 42 is wrapped outside the air outlet shell 23, and the second circulating pipe 44 is arranged between the second cooling shell 42 and the air outlet shell 23.
In the technical scheme provided by the embodiment of the utility model, the first shell 1 is used for preheating water, and the two ends of the first shell 1 are provided with a first opening and a second opening; the second shell is used for exchanging heat with waste hot gas, and comprises an air inlet shell 21, a heat exchange shell 22 and an air outlet shell 23, wherein two ends of the heat exchange shell 22 are respectively plugged with a first opening and a second opening, the air inlet shell 21 and the air outlet shell 23 are respectively arranged at two ends of the heat exchange shell 22, a first cavity 11 is arranged between the first shell 1 and the heat exchange shell 22, a second cavity 221 is arranged in the heat exchange shell 22, and the first cavity 11 is communicated with the heat exchange shell 22; the tube side component 3 is used for conveying waste heat gas components, and the tube side component 3 penetrates through the heat exchange shell 22 and is communicated with the air inlet shell 21 and the air outlet shell 23; the cooling part is used for reducing the temperature in the air inlet shell 21 and the air outlet shell 23, the cooling part comprises a first cooling shell 41, a second cooling shell 42, a first circulating pipe 43 and a second circulating pipe 44, two ends of the first circulating pipe 43 are communicated with the first shell 1, the first cooling shell 41 is wrapped outside the air inlet shell 21, the first circulating pipe 43 is arranged between the first cooling shell 41 and the air inlet shell 21, two ends of the second circulating pipe 44 are communicated with the first shell 1, the second cooling shell 42 is wrapped outside the air outlet shell 23, the second circulating pipe 44 is arranged between the second cooling shell 42 and the air outlet shell 23, compared with the prior art, the heat exchange pipe is arranged in a shell pass cylinder, an inlet pipe box and an outlet pipe box are arranged at two ends of the heat exchange pipe, a steam pocket cylinder is connected with the shell cylinder, waste heat gas enters the heat exchange pipe from the inlet pipe box and then is discharged through the outlet pipe, the water or steam that needs to be heated is heated through the shell pass cylinder and then enters the steam pocket cylinder, however, because the temperature difference between the inlet pipe box and the shell pass cylinder is large, the shell pass cylinder is easy to deform, thereby causing the situations of air leakage and the like, the use load of the shell pass cylinder is increased, and the safety of the equipment is reduced.
The first shell 1 is used for preheating water, the two ends of the first shell 1 are provided with a first opening and a second opening, the first shell 1 is of a cylindrical structure, the two ends of the first shell 1 are provided with the first opening and the second opening, the middle part of the first shell 1 is of a hollow structure, and the first opening and the second opening are communicated with each other; the second shell is used for exchanging heat with waste hot gas, the second shell comprises an air inlet shell 21, a heat exchange shell 22 and an air outlet shell 23, two ends of the heat exchange shell 22 are respectively sealed with a first opening and a second opening, the air inlet shell 21 and the air outlet shell 23 are respectively arranged at two ends of the heat exchange shell 22, a first cavity 11 is arranged between the first shell 1 and the heat exchange shell 22, a second cavity 221 is arranged in the heat exchange shell 22, the first cavity 11 is communicated with the heat exchange shell 22, the heat exchange shell 22 is arranged in the first shell 1, in addition, the side part of the heat exchange shell 22 is completely wrapped by the first shell 1, so that the first opening and the second opening are sealed at two ends of the heat exchange shell 22, the first cavity 11 is formed between the first shell 1 and the heat exchange shell 22, the second cavity 221 is arranged in the heat exchange shell 22, meanwhile, the air inlet shell 21 and the air outlet shell 23 are respectively arranged at two ends of the heat exchange shell 22, the tube side component 3 is used for conveying waste hot gas parts, the tube side component 3 penetrates through the heat exchange shell 22 and is communicated with the gas inlet shell 21 and the gas outlet shell 23, and waste hot gas enters the tube side component 3 from the gas inlet shell 21 and then enters the gas outlet shell 23; the cooling component is used for reducing the temperature in the air inlet shell 21 and the air outlet shell 23, the cooling component comprises a first cooling shell 41, a second cooling shell 42, a first circulating pipe 43 and a second circulating pipe 44, two ends of the first circulating pipe 43 are communicated with the first shell 1, the first cooling shell 41 is wrapped outside the air inlet shell 21, the first circulating pipe 43 is arranged between the first cooling shell 41 and the air inlet shell 21, two ends of the second circulating pipe 44 are communicated with the first shell 1, the second cooling shell 42 is wrapped outside the air outlet shell 23, the second circulating pipe 44 is arranged between the second cooling shell 42 and the air outlet shell 23, gas or water firstly enters the first cavity 11 and then enters the second cavity 221 to exchange heat with waste hot gas in the tube pass component 3, and meanwhile, gas or water subsequently entering the first cavity 11 can exchange heat with gas or water in the second cavity 221, the temperature of the water or gas in the first cavity 11 is increased, while the waste heat gas continues to heat the gas or water in the second cavity 221, and part of the water or gas enters between the first cooling shell 41 and the air inlet shell 21 through the first circulation pipe 43, so that the temperature of the waste heat gas in the air inlet shell 21 is reduced, while the temperature of the water or gas in the first circulation pipe 43 is increased, and part of the water or gas enters between the second cooling shell 42 and the exhaust shell 23 through the second circulation pipe 44, so that the temperature of the waste heat gas in the exhaust shell 23 is reduced, while the temperature of the water or gas in the second circulation pipe 44 is increased, and then the water or gas returns to the first cavity 11, which not only can increase the heating speed of the water or steam, but also can improve the safety of the equipment.
Further, the other end side of the first casing 1 is provided with a first water inlet pipe 12, a second water inlet pipe 13 is arranged between the first cavity 11 and the second cavity 221, and the second water inlet pipe 13 is arranged at one end side of the heat exchange casing 22. In this embodiment, the first housing 1 is further limited, the first water inlet pipe 12 is disposed on the other end side of the first housing 1, water or gas enters the first cavity 11 from the first water inlet pipe 12, the second water inlet pipe 13 is disposed on the other end side of the heat exchange housing 22, water or gas enters the heat exchange housing 22 from the second water inlet pipe 13, that is, the positions of the second water inlet pipe 13 and the first water inlet pipe 12 are diagonal positions of the heat exchange housing 22, so that water or gas flows around the surface of the heat exchange housing 22 and then enters the heat exchange housing 22, the flow path of water or gas is increased, and the technical effect of preheating water or gas is achieved.
Further, the refractory casing comprises a first refractory casing 51 and a second refractory casing 52, the first refractory casing 51 is wrapped outside the first temperature-reducing casing 41 and connected to the first casing 1, and the second refractory casing 52 is wrapped outside the second temperature-reducing casing 42 and connected to the first casing 1. In this embodiment, a fire-resistant housing is added, the first fire-resistant housing 51 is wrapped outside the first temperature-reducing housing 41 and is connected to the first housing 1, the second fire-resistant housing 52 is wrapped outside the second temperature-reducing housing 42 and is connected to the first housing 1, optionally, a fire-resistant layer is disposed in the fire-resistant housing, the fire-resistant layer includes a first fire-resistant layer 61 and a second fire-resistant layer 62, the first fire-resistant layer 61 is disposed between the first fire-resistant housing 51 and the air intake housing 21, and the second fire-resistant layer 62 is disposed between the second fire-resistant housing 52 and the exhaust housing 23, so that the heat loss of the first temperature-reducing housing 41 and the second temperature-reducing housing 42 is reduced to the minimum, thereby achieving the technical effect of heat preservation of the air intake housing 21 and the exhaust housing 23.
Further, the number of the second shells is two, and the second shells are respectively a high-temperature shell and a low-temperature shell, and the first shell 1 is respectively wrapped outside the heat exchange shell 22 of the high-temperature shell and the heat exchange shell 22 of the low-temperature shell. In this embodiment, the second casing has further been injectd, first casing 1 wraps up respectively in the heat transfer casing 22 outside of high temperature casing and the heat transfer casing 22 outside of low temperature casing, that is to say, the quantity of first casing 1 also is two, can preheat water or gas in high temperature casing and the low temperature casing respectively, and optionally, the exhaust casing 23 of high temperature casing communicates each other with the casing 21 that admits air of low temperature casing for the waste heat gas can be followed high temperature casing direct transition to low temperature casing, thereby reaches the technological effect who improves the utilization ratio of heat energy.
Further, the three-fork connector comprises a first connection fork 71, a second connection fork 72 and a third connection fork, the first connection fork 71 is connected to the tube side component 3, the second connection fork 72 is connected to the heat exchange shell 22, and the third connection fork is connected to the air inlet shell 21 or the air outlet shell 23. In this embodiment, a trident connecting piece is added, which is used for protecting the tube pass component 3 and the heat exchange shell 22, after waste hot gas is introduced into the tube pass component 3, the temperature difference between the tube pass component 3 and the air inlet shell 21 or the air outlet shell 23 is increased, so that the tube plate in the tube pass component 3 expands, thereby causing leakage, the first connecting fork 71 is connected to the tube pass component 3, the second connecting fork 72 is connected to the heat exchange shell 22, the third connecting fork is connected to the air inlet shell 21 or the air outlet shell 23, when the tube plate in the tube pass component 3 expands, a certain elastic deformation is generated between the tube plate and the trident connecting piece, and the trident connecting piece can play a role of an expansion joint, thereby solving the problem of axial temperature difference stress generated between the tube pass component 3 and the heat exchange shell 22; optionally, the second connecting fork 72 and the third connecting fork are located on the same plane, and the first connecting fork 71 is of a circular arc-shaped structure, so that when the tube side component 3 expands, the first connecting fork 71 can have a large elastic deformation range, and the applicability of the three-fork connecting piece is improved.
Further, one end of the second coupling fork 72 has a second coupling protrusion, the second coupling protrusion has a first coupling edge 721 and a second coupling edge 722, a first angle is formed between the first coupling edge 721 and the second coupling edge 722, the first angle ranges from 115 degrees to 125 degrees, the second coupling protrusion has a third coupling edge 731 and a fourth coupling edge 732, a second angle is formed between the third coupling edge 731 and the fourth coupling edge 732, and the second angle ranges from 115 degrees to 125 degrees. In this embodiment, a three-prong connecting member is further defined, a first angle is formed between the first connecting edge 721 and the second connecting edge 722, and the first angle ranges from 115 degrees to 125 degrees, so that the second connecting prong 72 is still connected to the heat exchange housing 22 after being expanded, thereby achieving the technical effect of preventing the second connecting prong 72 from being dislocated; a second angle is formed between the third connecting edge 731 and the fourth connecting edge 732, and the second angle ranges from 115 degrees to 125 degrees, so that the third connecting fork is still connected with the gas shell or the exhaust shell 23 after being expanded, and the technical effect of preventing the third connecting fork from being dislocated is achieved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A two-stage waste heat boiler, comprising:
the device comprises a first shell, a second shell and a control unit, wherein two ends of the first shell are provided with a first opening and a second opening;
the second shell comprises an air inlet shell, a heat exchange shell and an air outlet shell, the two ends of the heat exchange shell are respectively blocked with the first opening and the second opening, the air inlet shell and the air outlet shell are respectively arranged at the two ends of the heat exchange shell, a first cavity is arranged between the first shell and the heat exchange shell, a second cavity is arranged in the heat exchange shell, and the first cavity is communicated with the heat exchange shell;
the tube side component penetrates through the heat exchange shell and is communicated with the air inlet shell and the exhaust shell;
the cooling part, the cooling part includes first cooling casing, second cooling casing, first circulating pipe and second circulating pipe, the both ends of first circulating pipe with first casing communicates each other, first cooling casing parcel is in the outside of casing admits air, first circulating pipe sets up first cooling casing with between the casing admits air, the both ends of second circulating pipe with first casing communicates each other, second cooling casing parcel is in the outside of exhaust casing, the second circulating pipe sets up second cooling casing with between the exhaust casing.
2. The two-stage waste heat boiler of claim 1,
the other end side of first casing has first inlet tube, first cavity with the second inlet tube has between the second cavity, the second inlet tube sets up the one end side of heat transfer casing.
3. The two-stage waste heat boiler of claim 2, further comprising:
the fireproof shell comprises a first fireproof shell and a second fireproof shell, the first fireproof shell is wrapped outside the first cooling shell and connected to the first shell, and the second fireproof shell is wrapped outside the second cooling shell and connected to the first shell.
4. The two-stage waste heat boiler of claim 3, further comprising:
the fireproof layer comprises a first fireproof layer and a second fireproof layer, the first fireproof layer is arranged between the first fireproof shell and the air inlet shell, and the second fireproof layer is arranged between the second fireproof shell and the air outlet shell.
5. The two-stage waste heat boiler according to any one of claims 1 to 4,
the two second shells are respectively a high-temperature shell and a low-temperature shell, and the first shell is wrapped outside the heat exchange shell of the high-temperature shell and outside the heat exchange shell of the low-temperature shell.
6. The two-stage waste heat boiler of claim 5,
the exhaust housing of the high temperature housing and the intake housing of the low temperature housing are in communication with each other.
7. The two-stage waste heat boiler of claim 3 or 4, further comprising:
the three-fork connecting piece comprises a first connecting fork, a second connecting fork and a third connecting fork, the first connecting fork is connected with the tube side component, the second connecting fork is connected with the heat exchange shell, and the third connecting fork is connected with the air inlet shell or the air exhaust shell.
8. The two-stage waste heat boiler of claim 7,
the second connecting fork and the third connecting fork are located on the same plane, and the first connecting fork is of an arc-shaped structure.
9. The two-stage waste heat boiler of claim 8,
the one end of second clevis has the second and connects the arch, the second is connected the arch and is had first connection limit and second connection limit, first connection limit with the second is connected and has first angle between the limit, the scope of first angle is 115 degrees to 125 degrees, the second is connected the arch and is had the third and is connected the limit and the fourth and connect the limit, the third connect the limit with the fourth is connected and has the second angle between the limit, the scope of second angle is 115 degrees to 125 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120832577.4U CN213395251U (en) | 2021-04-22 | 2021-04-22 | Two-stage waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120832577.4U CN213395251U (en) | 2021-04-22 | 2021-04-22 | Two-stage waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213395251U true CN213395251U (en) | 2021-06-08 |
Family
ID=76196890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120832577.4U Active CN213395251U (en) | 2021-04-22 | 2021-04-22 | Two-stage waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213395251U (en) |
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2021
- 2021-04-22 CN CN202120832577.4U patent/CN213395251U/en active Active
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