CN216408922U - Anti-coking waste heat boiler - Google Patents
Anti-coking waste heat boiler Download PDFInfo
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- CN216408922U CN216408922U CN202123390407.4U CN202123390407U CN216408922U CN 216408922 U CN216408922 U CN 216408922U CN 202123390407 U CN202123390407 U CN 202123390407U CN 216408922 U CN216408922 U CN 216408922U
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- waste heat
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Abstract
The utility model provides an anti-coking waste heat boiler which comprises a boiler body, wherein a scraping assembly is arranged in the boiler body and comprises a first connecting pipe and a second connecting pipe, a cross rod is arranged between the first connecting pipe and the second connecting pipe, two ends of the cross rod are respectively connected with the inner walls of the first connecting pipe and the second connecting pipe in a sliding mode, and a plurality of scraping rods are fixedly connected to the side wall of the cross rod. In the anti-coking waste heat boiler, the scraping component is arranged, and after water in the first connecting pipe and the second connecting pipe is heated and then evaporates and expands, the cross rod is alternately driven to move, so that slag particles solidified on the contact surface of the boiler body and flue gas are matched with the scraping rod, coking is prevented from being formed on the heating surface of the boiler body, and the heating effect of the waste heat boiler is ensured; the structure is simpler, does not need to set up extra drive device in high temperature environment, and is more energy-concerving and environment-protective and long service life.
Description
Technical Field
The utility model relates to the technical field of industrial boiler equipment, in particular to an anti-coking waste heat boiler.
Background
Waste heat boilers, as the name implies, refer to boilers that heat water to a certain temperature using waste heat in waste gas, waste material or waste liquid and heat generated by burning combustible materials thereof in various industrial processes. In addition, an oil boiler, a gas boiler, and a coal boiler that have a smoke box and a flue and that recover and use waste heat are also called waste heat boilers. In practical application, the waste heat boiler can produce hot water or steam through waste heat recovery to be supplied to other sections for use.
In the prior art, the main heat source of the waste heat boiler is high-temperature flue gas generated by coal combustion, and ash particles moving along with the flue gas. Because the heat absorbed by the heating surface of the water-cooled wall of the hearth is cooled together with the flue gas, if liquid slag particles are solidified because of temperature reduction before approaching the water-cooled wall or the furnace wall, the liquid slag particles can be attached to the wall of the heating surface to form coke.
The coking not only can destroy the normal combustion working condition and reduce the steam outlet force of the boiler, but also the heating effect of the waste heat boiler can be influenced by the fluffy coking due to the heat insulation property. Based on this, it is necessary to provide an anti-coking waste heat boiler.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to solve the defects in the prior art and provides an anti-coking waste heat boiler.
The utility model provides an anti-coking waste heat boiler which comprises a boiler body, wherein a scraping assembly is arranged in the boiler body and comprises a first connecting pipe and a second connecting pipe, a cross rod is arranged between the first connecting pipe and the second connecting pipe, and two ends of the cross rod are respectively connected with the inner walls of the first connecting pipe and the second connecting pipe in a sliding manner;
the utility model discloses a boiler body, including the horizontal pole, the lateral wall fixedly connected with of horizontal pole strikes off the pole a plurality of, the equal fixedly connected with depression bar in both ends of horizontal pole, all be equipped with the solenoid valve on first connecting pipe and the second connecting pipe, the lateral wall that is close to first connecting pipe and second connecting pipe at the boiler body all is equipped with pressure sensor, pressure sensor and solenoid valve electric connection.
Preferably, the lateral wall of boiler body has seted up the holding tank, pressure sensor is located the holding tank.
Preferably, the lateral walls of the first connecting pipe and the second connecting pipe are fixedly connected with heat-conducting plates, the lateral wall of the cross rod is fixedly connected with a connecting plate, and the connecting plate and the heat-conducting plates are abutted against each other and arranged.
Preferably, both ends of the cross rod are fixedly connected with metal pistons, the side walls of the metal pistons are provided with annular grooves, and sealing gaskets are arranged in the annular grooves.
Preferably, the first connecting pipe and the second connecting pipe are communicated with the boiler body through return pipes, compression springs are fixedly connected in the return pipes, and sealing plugs are fixedly connected on the compression springs.
Preferably, the scraping bar is in a gate shape, and the cross section of the scraping bar is triangular.
The anti-coking waste heat boiler provided by the utility model has the beneficial effects that:
1. in this kind of anti-coking exhaust-heat boiler, strike off the subassembly through setting up, utilize water evaporation inflation after being heated in first connecting pipe and the second connecting pipe, drive the horizontal pole removal in turn to the cooperation strikes off the slag grain that solidifies on the contact surface of pole with boiler body and flue gas, avoids forming the coking on the heating surface of boiler body, guarantees exhaust-heat boiler's heating effect, and the structure is comparatively simple, need not to set up extra drive arrangement in high temperature environment, and is energy-concerving and environment-protective, long service life.
2. In this kind of anti-coking exhaust-heat boiler, place pressure sensor through the holding tank, but the water in the make full use of boiler protects pressure sensor, avoids pressure sensor to damage under high temperature environment, through setting up the heat-conducting plate, can improve the heating effect of flue gas to first connecting pipe and second connecting pipe, improves the operating efficiency of scraping the pole for the heated region of boiler body remains comparatively clean state all the time.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model as set forth above.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an anti-coking waste heat boiler provided by the utility model;
FIG. 2 is a schematic perspective view of an anti-coking exhaust-heat boiler according to the present invention;
FIG. 3 is a schematic diagram of the internal cross-sectional structure of an anti-coking exhaust-heat boiler provided by the utility model;
FIG. 4 is a schematic side sectional view of an anti-coking exhaust-heat boiler according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4;
fig. 6 is a schematic structural diagram of a first connecting pipe in an anti-coking waste heat boiler provided by the utility model.
Description of the main symbols:
| |
1 | Accommodating tank | 8 |
| First connecting pipe | 2 | Heat conducting plate | 9 |
| Second connecting pipe | 3 | Connecting |
10 |
| |
4 | |
11 |
| Scraping rod | 5 | |
12 |
| Pressure lever | 6 | Compression spring | 13 |
| |
7 | |
14 |
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, the present invention provides an anti-coking exhaust-heat boiler, which includes a boiler body 1, and a scraping assembly is disposed in the boiler body 1.
Specifically, strike off the subassembly and include first connecting pipe 2 and second connecting pipe 3, first connecting pipe 2 and second connecting pipe 3 all set up with the boiler intercommunication. Wherein, the opening directions of the first connecting pipe 2 and the second connecting pipe 3 are opposite. A cross rod 4 is arranged between the first connecting pipe 2 and the second connecting pipe 3, and two ends of the cross rod 4 are respectively connected with the inner walls of the first connecting pipe 2 and the second connecting pipe 3 in a sliding manner.
In addition, a plurality of scraping rods 5 are fixedly connected to the side wall of the cross rod 4, and pressing rods 6 are fixedly connected to the two ends of the cross rod 4. All be equipped with solenoid valve 7 on first connecting pipe 2 and second connecting pipe 3, boiler body 1 all is equipped with pressure sensor near the lateral wall of first connecting pipe 2 and second connecting pipe 3. The pressure sensor is electrically connected with the electromagnetic valve 7, the pressure sensor is electrically connected with the controller, the controller is composed of a signal processor and a relay, the sensor, the signal processor and the relay are the most common automatic control equipment in the prior art, and the specific connection mode and the working principle of the automatic control equipment are not repeated.
In this embodiment, the control logic of the controller for the electromagnetic valve 7 is as follows: after the pressure lever 6 abuts against the pressure sensor close to the first connecting pipe 2, the electromagnetic valve 7 on the first connecting pipe 2 is opened and the electromagnetic valve 7 on the second connecting pipe 3 is closed, and after the pressure lever 6 abuts against the pressure sensor close to the second connecting pipe 3, the electromagnetic valve 7 on the second connecting pipe 3 is opened and the electromagnetic valve 7 on the first connecting pipe 2 is closed.
Furthermore, the side wall of the boiler body 1 is provided with an accommodating groove 8. Wherein, pressure sensor is located holding tank 8, and pressure sensor adopts high temperature resistant sensor. In addition, holding tank 8 is sunken to boiler body 1 inner wall, is convenient for place pressure sensor.
In this embodiment, heat-conducting plates 9 are fixedly connected to the side walls of the first connecting pipe 2 and the second connecting pipe 3, connecting plates 10 are fixedly connected to the side walls of the cross rod 4, and the connecting plates 10 and the heat-conducting plates 9 are abutted against each other. It should supplement here and explain that, heat-conducting plate 9 does not lean on with boiler body 1 counterbalance, can realize two-sided synchronous being heated to enlarge the heating area, thereby improve the heating effect to first connecting pipe 2 and second connecting pipe 3, make the water rapid evaporation in first connecting pipe 2 and the second connecting pipe 3 and drive and strike off pole 5 and remove, improve the translation rate that strikes off pole 5.
Referring to fig. 6, both ends of the cross bar 4 are fixedly connected with metal pistons 11, and the side walls of the metal pistons 11 are provided with annular grooves in which sealing gaskets 12 are disposed. The metal piston 11 acts as the primary seal and the sealing washer 12 acts as a back-up safety measure. It can be understood that although the wear resistance of the sealing washer 12 is weaker than that of the metal piston 11, the elasticity of the sealing washer 12 is better, and it can be ensured that water or steam in the first connecting pipe 2 and the second connecting pipe 3 cannot overflow after the metal piston 11 has a gap with the inner walls of the first connecting pipe 2 and the second connecting pipe 3.
The first connecting pipe 2 and the second connecting pipe 3 are communicated with the boiler body 1 through a return pipe, a compression spring 13 is fixedly connected in the return pipe, and a sealing plug 14 is fixedly connected on the compression spring 13. Through the design, the return pipe is in a state of being blocked by the sealing plug 14 in a daily state (including a state that the steam in the first connecting pipe 2 and the second connecting pipe 3 drives the cross rod 4 to move), and when the electromagnetic valve 7 and the pressure sensor break down under the condition, the pressure of the steam in the first connecting pipe 2 or the second connecting pipe 3 reaches the moving degree, the sealing plug 14 can be driven to move, so that the steam flows back to the boiler body 1, the condition that the pressure in the first connecting pipe 2 or the second connecting pipe 3 is too high is avoided, and the safety of the waste heat boiler is improved.
In the present embodiment, the scraping bar 5 is in a shape of a door, and the cross section of the scraping bar 5 is triangular. Wherein, scraping rod 5 can be reciprocating motion, adopts the cross section to be the design of triangle-shaped, can let its in reciprocating motion's in-process, no matter move towards which direction, all has the better effect of scraping the deposition.
The working principle is as follows:
when in actual use, firstly, the electromagnetic valves 7 on the first connecting pipe 2 and the second connecting pipe 3 are both arranged in the opening devices, and the electromagnetic valves 7 on the first connecting pipe 2 are closed when the boiler body 1 runs; as the flue gas heats the waste heat boiler, the temperature of water in the first connecting pipe 2 is gradually increased and gasified, so that the pressure in the first connecting pipe 2 is higher than the pressure in the second connecting pipe 3, at the moment, the cross rod 4 moves towards the second connecting pipe 3 under the action of high pressure, and as the scraping rod 5 is fixedly arranged on the cross rod 4, the scraping rod 5 can scrape accumulated dust on the heating surface of the boiler body 1 in the moving process;
after the pressure sensor close to the second connecting pipe 3 is abutted, the electromagnetic valve 7 on the first connecting pipe 2 is controlled to be opened, and the electromagnetic valve 7 on the second connecting pipe 3 is controlled to be closed; at the moment, the high-pressure water and the steam in the first connecting pipe 2 flow back into the boiler body 1, the temperature of the water in the second connecting pipe 3 is gradually increased and gasified, and then the cross rod 4 is driven to move towards the first connecting pipe 2, and finally the purpose of reciprocating motion of the scraping rod 5 is achieved;
the device can synchronously clean dirt on the heating surface of the boiler body 1 in the operation process of the waste heat boiler, and effectively avoid coking on the heating surface of the boiler body 1.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The anti-coking waste heat boiler is characterized by comprising a boiler body (1), wherein a scraping assembly is arranged in the boiler body (1), the scraping assembly comprises a first connecting pipe (2) and a second connecting pipe (3), a cross rod (4) is arranged between the first connecting pipe (2) and the second connecting pipe (3), and two ends of the cross rod (4) are respectively in sliding connection with the inner walls of the first connecting pipe (2) and the second connecting pipe (3);
the utility model discloses a boiler, including boiler body (1), lateral wall fixedly connected with of horizontal pole (4) strikes off pole (5) a plurality of, the equal fixedly connected with depression bar (6) in both ends of horizontal pole (4), all be equipped with solenoid valve (7) on first connecting pipe (2) and second connecting pipe (3), the lateral wall that is close to first connecting pipe (2) and second connecting pipe (3) in boiler body (1) all is equipped with pressure sensor, pressure sensor and solenoid valve (7) electric connection.
2. The anti-coking waste heat boiler according to claim 1, characterized in that the boiler body (1) has a sidewall with a receiving groove (8), and the pressure sensor is located in the receiving groove (8).
3. The anti-coking waste heat boiler according to claim 1, characterized in that the side walls of the first connecting pipe (2) and the second connecting pipe (3) are fixedly connected with heat conducting plates (9), the side wall of the cross rod (4) is fixedly connected with connecting plates (10), and the connecting plates (10) are abutted against the heat conducting plates (9).
4. The anti-coking waste heat boiler according to claim 1, characterized in that both ends of the cross bar (4) are fixedly connected with metal pistons (11), the side wall of the metal piston (11) is provided with an annular groove, and a sealing gasket (12) is arranged in the annular groove.
5. The anti-coking waste heat boiler according to claim 1, characterized in that the first connecting pipe (2) and the second connecting pipe (3) are both communicated with the boiler body (1) through a return pipe, a compression spring (13) is fixedly connected in the return pipe, and a sealing plug (14) is fixedly connected on the compression spring (13).
6. An anti-coking waste heat boiler according to claim 1, characterized in that the scraper bar (5) is in the shape of a door, the cross-section of the scraper bar (5) being triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123390407.4U CN216408922U (en) | 2021-12-30 | 2021-12-30 | Anti-coking waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123390407.4U CN216408922U (en) | 2021-12-30 | 2021-12-30 | Anti-coking waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216408922U true CN216408922U (en) | 2022-04-29 |
Family
ID=81286817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123390407.4U Active CN216408922U (en) | 2021-12-30 | 2021-12-30 | Anti-coking waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216408922U (en) |
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2021
- 2021-12-30 CN CN202123390407.4U patent/CN216408922U/en active Active
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