CN216431676U - Evaporator for waste heat boiler - Google Patents
Evaporator for waste heat boiler Download PDFInfo
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- CN216431676U CN216431676U CN202122537981.1U CN202122537981U CN216431676U CN 216431676 U CN216431676 U CN 216431676U CN 202122537981 U CN202122537981 U CN 202122537981U CN 216431676 U CN216431676 U CN 216431676U
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Abstract
The utility model provides an evaporimeter for exhaust-heat boiler relates to exhaust-heat boiler technical field. The evaporator comprises an evaporator frame (1), a heating surface, an inlet header (4), an outlet header (5) and accessories, wherein a plurality of inspection doors (3) are arranged on the evaporator frame (1), the heating surface consists of two layers of fin tube groups (2) which are arranged in parallel, each fin tube group (2) is formed by serially connecting a fin tube with an expanded heating surface and a 180-degree elbow and is sequentially arranged along the direction of waste gas, a front supporting plate and a rear supporting plate with tube sleeves and a comb-shaped plate are respectively arranged at the end part and the middle part of each fin tube group (2), one end of the inlet header (4) is provided with a pressure gauge, a thermometer, an air valve and a safety valve, the other end of the inlet header (4) is fixedly arranged on the evaporator frame (1), one end of the outlet header (5) is provided with a blow-down valve, and the other end of the outlet header is fixedly arranged on the evaporator frame (1). The utility model provides an evaporimeter heated surface's technical problem that effective utilization is low.
Description
Technical Field
The utility model relates to a waste heat boiler technical field, concretely relates to an evaporimeter for waste heat boiler.
Background
The boiler is an energy converter, which is a device for heating working medium water or other fluids to certain parameters by using heat energy released by fuel combustion or other heat energy. The boiler is divided into a boiler part and a furnace part. The boiler is a pressure-receiving component for containing water and steam, heating, vaporizing and separating water from steam, and the furnace is a place for burning fuel or releasing heat by other heat energy, and comprises combustion equipment, a combustion chamber, a heat-releasing flue and the like. The boiler and the furnace are subjected to a heat conversion process, and the interface of heat release and heat absorption is called a heating surface.
In patent CN201720288556.4, an arrangement structure of horizontal waste heat boiler evaporator inlet dispersion pipes is disclosed, which can absorb the expansion difference, protect the heating surface module of the evaporator from being damaged, and ensure the safe operation of the boiler, the waste heat boiler evaporator, the evaporator lower header, the evaporator down pipe bottom distribution header, the evaporator inlet dispersion pipes, the waste heat boiler evaporator is connected with the evaporator lower header, the evaporator down pipe is connected with the evaporator down pipe bottom distribution header, the evaporator lower header is connected with the evaporator down pipe bottom distribution header through the evaporator inlet dispersion pipes, the evaporator inlet dispersion pipes are respectively arranged on the left and right sides of each evaporator down pipe bottom distribution header, one end of the evaporator inlet dispersion pipe is connected with the side of the evaporator down pipe bottom distribution header, the other end of the evaporator inlet dispersion pipe is connected with the lower end of the evaporator lower header, the evaporator inlet dispersion pipe is a flexible bent pipe.
In patent CN201410689649.9, an L-shaped combined heating surface waste heat boiler structure is disclosed, which can effectively solve the problem that the existing horizontal ferrosilicon waste heat boiler adopting an external heat preservation structure has high boiler cost due to high-temperature smoke emission. The L-shaped combined heating surface waste heat boiler structure comprises a steam drum and is characterized in that: the flue gas heat-preservation device comprises a front vertical high-temperature flue and a rear horizontal low-temperature flue, wherein the front vertical high-temperature flue and the rear horizontal low-temperature flue are communicated through a connecting flue and form an integral L-shaped structure, the front vertical high-temperature flue is provided with a flue gas inlet, the rear horizontal low-temperature flue is provided with a flue gas outlet, the front vertical high-temperature flue is an inner heat-preservation structure flue, and the rear horizontal low-temperature flue is an outer heat-preservation structure flue.
In patent cn201420333697.x, a waste heat boiler for waste gas utilization is disclosed, which comprises a boiler steam-water system and a flue gas system, wherein the boiler steam-water system consists of an economizer, an evaporator, a steam drum and a pipeline, and the flue gas system consists of a flue gas inlet, a hearth and a flue gas outlet; the heating device comprises a hearth, a steam drum, a dust hopper, a plurality of groups of heating surface evaporators, a plurality of groups of coal saving boilers, a steam drum and a dust hopper, wherein the hearth is horizontally arranged, the heating surface evaporators are vertically arranged at the front end of the hearth, the coal saving boilers are vertically arranged at the rear end of the hearth, the steam drum is arranged at the upper end of each heating surface evaporator, and the dust hopper is arranged at the bottom of the hearth. The boiler heating surface evaporator is composed of a plurality of groups, each group of evaporators independently enter and exit the steam pocket to form a plurality of simple natural circulation loops, and the water circulation system is stable and reliable, small in thermal deviation and good in safety.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide an evaporimeter for exhaust-heat boiler. The actively large heating surface of the heat exchange surface is arranged, so that the volume and the quality of the equipment are greatly reduced under the same heat exchange area, a larger operation large space is provided in the aspect of equipment arrangement and installation, an engineer can determine an ash removal period according to actual conditions by the aid of the inspection door arranged on the equipment, the heat exchange effect is ensured, the service life is prolonged, and the technical problem of low effective utilization rate of the heating surface of the evaporator is solved.
The purpose of the utility model is realized through the following technical scheme:
an evaporator for a waste heat boiler, comprising an evaporator frame, a heating surface, an inlet header, an outlet header and accessories, wherein:
a plurality of inspection doors are arranged on the evaporator frame;
the heating surface consists of two layers of finned tube groups arranged in parallel;
a U-shaped connecting pipe is arranged between two layers of the fin pipe group, and the inlet pipe end and the outlet pipe end of the upper layer fin pipe group and the lower layer fin pipe group are connected in series;
each group of finned tube groups is formed by serially connecting finned tubes with extended heating surfaces and 180-degree elbows and is sequentially arranged along the direction of waste gas;
the end part and the middle part of each fin tube group are respectively provided with a front supporting plate and a rear supporting plate with tube sleeves and a comb-shaped plate;
each fin tube group is fixedly arranged on the evaporator frame through a supporting plate;
one end of the inlet header is provided with a pressure gauge, a thermometer, an air valve and a safety valve, and the other end of the inlet header is fixedly arranged on the evaporator frame;
one end of the outlet header is provided with a blow-down valve, and the other end of the outlet header is fixedly arranged on the evaporator frame.
Alternatively or preferably, the finned tube banks are all LHFT series finned tubes.
Optionally or preferably, the butt welds of the fin tube groups are all welded by argon arc welding.
Alternatively or preferably, the finned tube stack is designed to be shock resistant and sound damping.
Alternatively or preferably, the inlet and outlet headers are both made of seamless steel tubing.
Based on the technical scheme, the following technical effects can be generated:
the utility model provides a pair of an evaporimeter for exhaust-heat boiler for smelt flue gas waste heat electricity generation, its beneficial effect has:
1. when the same space is occupied, the heat exchange area is larger;
2. the flue gas flowing through the heat exchanger can form strong turbulence, the heat transfer efficiency is improved, and the soot accumulation is reduced;
3. the silencer has the structural characteristics of a silencer, can resist shock and reduce noise, and improves the environment;
4. the ash can be conveniently and regularly removed, the heat exchange effect is ensured, and the service life is prolonged;
5. the fin tube group can freely stretch out and draw back in the sleeve of the supporting plate, and adverse effects cannot be caused due to thermal expansion displacement.
The utility model provides a technical problem that the effective utilization of evaporimeter heating surface is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view (front view) of the present invention;
fig. 2 is a schematic structural view (left side view) of the present invention;
fig. 3 is a schematic structural view (top view) of the present invention;
the reference numbers in the figures are:
1-evaporator frame, 2-finned tube group, 3-inspection door, 4-inlet header and 5-outlet header.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-3:
the utility model provides an evaporimeter for exhaust-heat boiler, including evaporimeter frame 1, heating surface, import header 4, export header 5 and annex, wherein:
a plurality of inspection doors 3 are arranged on the evaporator frame 1;
the heating surface consists of two layers of fin tube groups 2 which are arranged in parallel;
a U-shaped connecting pipe is arranged between two layers of the fin pipe group 2, and the inlet pipe end and the outlet pipe end of the upper layer fin pipe group 2 and the lower layer fin pipe group 2 are connected in series;
each group of finned tube groups 2 is formed by serially connecting finned tubes with extended heating surfaces and 180-degree elbows, and is sequentially arranged along the direction of waste gas;
the end part and the middle part of each fin tube group 2 are respectively provided with a front supporting plate, a rear supporting plate and a comb-shaped plate with tube sleeves;
each fin tube group 2 is fixedly arranged on the evaporator frame 1 through a supporting plate;
one end of the inlet header 4 is provided with a pressure gauge, a thermometer, an air valve and a safety valve, and the other end is fixedly arranged on the evaporator frame 1;
one end of the outlet header 5 is provided with a blow-down valve, and the other end is fixedly arranged on the evaporator frame 1.
In the present embodiment, the fin tube group 2 is an LHFT series fin tube.
In the present embodiment, the butt welds of the fin tube group 2 are all welded by argon arc welding.
In the present embodiment, the finned tube group 2 is designed to be shock-resistant and sound-deadening.
In this embodiment, the inlet header 4 and the outlet header 5 are both made of seamless steel pipes.
The embodiment has the following advantages:
(1) when the heat exchanger occupies the same space, the heat exchanger has larger heat exchange area;
(2) the embodiment can enable the flowing flue gas to form strong turbulence, improve the heat transfer efficiency and reduce the accumulation of soot;
(3) the embodiment has the structural characteristics of the silencer, can resist shock and reduce noise, and improves the environment;
(4) the embodiment facilitates the periodic ash removal, ensures the heat exchange effect and prolongs the service life;
(5) the finned tube group of the embodiment can freely stretch and retract in the sleeve of the support plate, and cannot generate adverse effects due to thermal expansion displacement.
The structures, functions, and connections disclosed herein may be implemented in other ways. For example, the embodiments described above are merely illustrative, and for example, the upper and lower finned tube sets may have other mounting arrangements, e.g., multiple components may be combined or integrated with one another; in addition, each functional component in the embodiments herein may be integrated into one functional component, or each functional component may exist alone physically, or two or more functional components may be integrated into one functional component.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (4)
1. An evaporator for a waste heat boiler, characterized in that: including evaporimeter frame (1), heating surface, import header (4), export header (5) and annex, wherein:
a plurality of inspection doors (3) are arranged on the evaporator frame (1);
the heating surface consists of two layers of fin tube groups (2) which are arranged in parallel;
a U-shaped connecting pipe is arranged between two layers of the finned pipe group (2), and the inlet pipe end and the outlet pipe end of the upper layer finned pipe group and the lower layer finned pipe group (2) are connected in series;
each group of finned tube groups (2) is formed by serially connecting finned tubes with extended heating surfaces and 180-degree elbows and is sequentially arranged along the direction of waste gas;
the end part and the middle part of each fin tube group (2) are respectively provided with a front supporting plate and a rear supporting plate with tube sleeves and a comb-shaped plate;
each finned tube group (2) is fixedly arranged on the evaporator frame (1) through a supporting plate;
one end of the inlet header (4) is provided with a pressure gauge, a thermometer, an air valve and a safety valve, and the other end of the inlet header is fixedly arranged on the evaporator frame (1);
one end of the outlet header (5) is provided with a blow-down valve, and the other end is fixedly arranged on the evaporator frame (1).
2. An evaporator for a waste heat boiler as set forth in claim 1, characterized in that: and butt welding seams of the fin tube group (2) are welded by argon arc welding.
3. An evaporator for a waste heat boiler as set forth in claim 1, characterized in that: the finned tube group (2) is designed into a shock-proof and noise-reduction structure.
4. An evaporator for a waste heat boiler as set forth in claim 1, characterized in that: the inlet header (4) and the outlet header (5) are both made of seamless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122537981.1U CN216431676U (en) | 2021-10-21 | 2021-10-21 | Evaporator for waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122537981.1U CN216431676U (en) | 2021-10-21 | 2021-10-21 | Evaporator for waste heat boiler |
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| Publication Number | Publication Date |
|---|---|
| CN216431676U true CN216431676U (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122537981.1U Active CN216431676U (en) | 2021-10-21 | 2021-10-21 | Evaporator for waste heat boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823565A (en) * | 2022-11-02 | 2023-03-21 | 四川川锅锅炉有限责任公司 | Process for manufacturing heating surface module of waste heat boiler |
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2021
- 2021-10-21 CN CN202122537981.1U patent/CN216431676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823565A (en) * | 2022-11-02 | 2023-03-21 | 四川川锅锅炉有限责任公司 | Process for manufacturing heating surface module of waste heat boiler |
| CN115823565B (en) * | 2022-11-02 | 2023-09-29 | 四川川锅锅炉有限责任公司 | Manufacturing process of heating surface module of waste heat boiler |
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