CN210980909U - Dry-burning resistant ascending pipe heat exchanger - Google Patents
Dry-burning resistant ascending pipe heat exchanger Download PDFInfo
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- CN210980909U CN210980909U CN201921982913.2U CN201921982913U CN210980909U CN 210980909 U CN210980909 U CN 210980909U CN 201921982913 U CN201921982913 U CN 201921982913U CN 210980909 U CN210980909 U CN 210980909U
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- pipe
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- 230000001174 ascending effect Effects 0.000 title abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 48
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000009841 combustion method Methods 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 239000000571 coke Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a dry burning resistant ascending tube heat exchanger, which comprises an inner cylinder body, a heat exchange tube, a natural cooling air tube, a heat conduction layer and a heat preservation layer; wherein, a raw gas channel is arranged in the cylinder body of the inner cylinder body, and a heat conduction layer and a heat insulation layer are sequentially arranged on the outer side surface of the cylinder body from inside to outside; the heat exchange pipes and the natural cooling air pipes are buried inside the heat conduction layer and alternately and spirally wound on the outer side wall of the inner barrel body alternately. The utility model discloses to the dry combustion method phenomenon that tedge heat exchanger easily takes place when the outage, be provided with the pipe cap at natural cooling tuber pipe entrance point, from the physics mechanics angle, utilize air conditioning to get into the natural cooling tuber pipe, absorb the heat that each part was amassed in the tedge heat exchanger and become hot-air, discharge to the atmosphere, reached the cooling purpose to other parts in the tedge heat exchanger when dry combustion method, play the effect of protection tedge heat exchanger.
Description
Technical Field
The utility model belongs to the field of coke oven equipment, and relates to a dry-burning-resistant ascending pipe heat exchanger.
Background
In the coke oven in production, the coke oven is not in production all the year, but after the ascending tube heat exchanger is installed, if emergency situations or emergencies such as natural power failure, motor faults and the like occur, the pump driving water or heat medium stops running, the water or heat medium flowing through the ascending tube heat exchanger is cut off, a dry burning state in the ascending tube heat exchanger is generated, the damage to parts in the ascending tube heat exchanger is large in the state, and the service life of the ascending tube heat exchanger is greatly shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the ascending tube heat exchanger is damaged and the service life is prolonged when emergency or sudden events such as natural power failure, power failure and motor faults happen in the production process of the coke oven, the utility model provides an ascending tube heat exchanger capable of resisting dry burning, which comprises an inner cylinder body, a heat exchange tube, a natural cooling air pipe, a heat conduction layer and a heat insulation layer; wherein a raw gas passage is arranged in the cylinder body of the inner cylinder body, and a heat conduction layer and a heat insulation layer are sequentially arranged on the outer side surface of the cylinder body from inside to outside; the heat exchange pipes and the natural cooling air pipes are buried inside the heat conduction layer and alternately and spirally wound on the outer side wall of the inner cylinder body alternately.
As an improvement, the heat-insulation pipe also comprises an outer barrel and a flange, wherein the outer barrel is fixedly arranged on the outer side surface of the heat-insulation layer, and the outer barrel is connected with the upper end surface and the lower end surface of the inner barrel through the flanges.
The improved natural cooling air pipe further comprises a pipe cap, wherein the natural cooling air pipe is composed of a plurality of groups of sections, each group of sections is provided with a group of inlet ends and outlet ends communicated with outside air, and the pipe cap is detachably and fixedly arranged at the position of the inlet end of each group of sections.
As an improvement, the inlet end of the natural cooling air pipe is introduced with cold air, and the outlet end of the natural cooling air pipe outputs hot air.
As an improvement, the outlet end of the natural cooling air pipe extends out of the outer cylinder, the end face of the natural cooling air pipe is in a slope bevel shape, the length of the upper end face of the outlet port is larger than that of the lower end face, and the angle of the slope is 25-35 degrees.
As a refinement, the bevel angle is 30 °.
As an improvement, the heat exchange tube comprises an inlet end and an outlet end, media are arranged in the tube, wherein the inlet end is an inlet of water or low-temperature heat media, and the outlet end is an outlet of a steam-water mixture or high-temperature heat media.
Has the advantages that: the utility model provides a pair of can be able to bear or endure tedge heat exchanger of dry combustion method, to the dry combustion method phenomenon that tedge heat exchanger easily takes place when the outage, be provided with the pipe cap at natural cooling tuber pipe entrance point, from the physics mechanics angle, utilize air conditioning to get into the natural cooling tuber pipe, the heat that absorbs each part and save in the tedge heat exchanger becomes hot-air, because the density of hot-air is little than the density of cold-air, the hot-air can upwards flow along the interior helix of natural cooling tuber pipe under the buoyancy effect of this density difference production, discharge to the atmosphere in the exit, the cooling purpose to other parts in the tedge heat exchanger when having reached dry combustion method, play the effect of protection tedge heat exchanger. In addition, the pipe orifice at the hot air outlet is in a slope shape, so that rainwater can be prevented from entering the natural cooling air pipe.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the device of the present invention.
In the drawings: 1. an inner cylinder; 2. a heat exchange pipe; 3. naturally cooling the air pipe; 4. a pipe cap; 5. a heat conductive layer; 6. a heat-insulating layer; 7. an outer cylinder; 8. and (4) a flange.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
A dry-burning resistant ascending tube heat exchanger comprises an inner cylinder body 1, a heat exchange tube 2, a natural cooling air pipe 3, a heat conducting layer 5 and a heat insulating layer 6; wherein, a raw gas channel is arranged in the inner cylinder body 1, and the outer side surface of the cylinder body is provided with a heat conduction layer 5 and a heat insulation layer 6 from inside to outside in sequence; the heat exchange tubes 2 and the natural cooling air pipes 3 are buried in the heat conduction layer 5 and alternately and spirally wound on the outer side wall of the inner barrel 1.
Still include outer barrel 7, flange 8, outer barrel 7 fixed mounting is in 6 lateral surfaces of heat preservation, and outer barrel 7 is connected through flange 8 with the up end and the lower terminal surface of interior barrel 1.
The natural cooling air pipe is characterized by further comprising a pipe cap 4, wherein the natural cooling air pipe 3 is composed of a plurality of groups of sections, each group of sections is provided with a group of inlet ends and outlet ends communicated with outside air, and the pipe cap 4 is detachably and fixedly arranged at the position of the inlet end of each group of sections.
The inlet end of the natural cooling air pipe 3 is filled with cold air, and the outlet end of the natural cooling air pipe 3 outputs hot air which is discharged into the atmosphere.
The outlet end of the natural cooling air pipe 3 extends out of the outer cylinder 7, the end face is in a slope-slope shape, the length of the upper end face of the outlet port is larger than that of the lower end face, and the slope angle is 25-35 degrees, preferably 30 degrees.
The heat exchange tube 2 comprises an inlet end and an outlet end, media are arranged in the tube, wherein the inlet end is an inlet of water or low-temperature heat media, and the outlet end is an outlet of a steam-water mixture or high-temperature heat media.
As the specific implementation mode of the utility model, the cold air of external environment gets into the natural cooling tuber pipe, can be at the inlet connection air pump of natural cooling tuber pipe, impresses the air inside the natural cooling tuber pipe through the air pump effect.
And simultaneously, the utility model discloses well natural cooling tuber pipe 3 is that the multistage is constituteed, and wherein segmentation quantity can be calculated according to physics mechanics to the buoyancy that the intraductal air of assurance every section received is enough to overcome the flow resistance and determines the natural cooling tuber pipe that should set up how many groups.
In order to overcome the flow resistance and ensure the air circulation speed, the aerodynamic force inside each natural cooling air pipe should satisfy:
delta H is more than or equal to Delta P, wherein the Delta H is flow power, and the Delta P is flow resistance;
Δ H is Δ ρ gh, Δ ρ is the density difference of the air inlet and outlet, g is the gravity acceleration, and H is the height difference of the inlet and outlet;
ΔP＝(λL/d+Σξ)ρu 22, lambda is the on-way resistance coefficient, L is the length of the pipe, d is the inner diameter of the cooling air pipe, and sigma ξ is the sum of the local resistance coefficients;
the flow speed under the working condition is u-G/(rho pi d)2/4)；
G is the mass flow rate of air, ρ is the density corresponding to the average temperature of air, and t is the average temperature (t ═ t)1+t2)/2，t1Is the inlet temperature, t2Is the outlet temperature;
the heat exchange quantity of the natural cooling air pipe is Q, which is equal to the heat absorption quantity of air, and Q is GCp (t)2-t1) And Cp is the specific heat corresponding to the average temperature of air.
The pipe cap 4 of the inlet of the natural cooling air pipe 3 is closed and not opened when the ascending pipe heat exchanger works normally, and the pipe cap 4 is in an open state when a power failure pump of the ascending pipe heat exchanger 7 does not operate. When power is cut off, the pump driving water or heat medium stops running, the water or heat medium flowing through the heat exchange pipe is cut off, and the ascending pipe heat exchanger is in a dry burning state. At the moment, the pipe cap 4 at the inlet of the natural cooling air pipe can be quickly screwed off, because the outlet of the natural cooling air pipe is positioned relatively above, the cold air in the external environment enters the natural cooling air pipe, the heat accumulated by each component in the ascending pipe heat exchanger is absorbed and changed into hot air, because the density of the hot air is smaller than that of the cold air, the hot air can upwards flow along the spiral line in the natural cooling air pipe under the buoyancy effect generated by the density difference and is discharged to the atmosphere from the outlet, the aim of cooling other components in the ascending pipe heat exchanger during dry burning is fulfilled, and the effect of protecting the ascending pipe heat exchanger is achieved. Simultaneously the utility model discloses in set up the mouth of pipe of steam outlet department and be the slope shape, can prevent that the rainwater from getting into the natural cooling tuber pipe.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The utility model provides a can be able to bear or endure rising pipe heat exchanger of dry combustion method which characterized in that: comprises an inner cylinder body (1), a heat exchange pipe (2), a natural cooling air pipe (3), a heat conduction layer (5) and a heat insulation layer (6); wherein a raw gas channel is arranged in the inner cylinder body of the inner cylinder body (1), and a heat conduction layer (5) and a heat insulation layer (6) are sequentially arranged on the outer side surface of the cylinder body from inside to outside; the heat exchange pipes (2) and the natural cooling air pipes (3) are buried in the heat conduction layer (5) and alternately and spirally wound on the outer side wall of the inner cylinder (1).
2. The dry-fire tolerant riser heat exchanger of claim 1, wherein: still include outer barrel (7), flange (8), outer barrel (7) fixed mounting is in heat preservation (6) lateral surface, and outer barrel (7) are connected through flange (8) with the up end and the lower terminal surface of interior barrel (1).
3. The dry-fire tolerant riser heat exchanger of claim 2, wherein: the natural cooling air pipe is characterized by further comprising a pipe cap (4), wherein the natural cooling air pipe (3) is composed of a plurality of groups of sections, each group of sections is provided with a group of inlet ends and outlet ends communicated with outside air, and the pipe cap (4) is detachably and fixedly arranged at the position of the inlet end of each group of sections.
4. The dry-fire tolerant riser heat exchanger of claim 3, wherein: the inlet end of the natural cooling air pipe (3) is introduced with cold air, and the outlet end of the natural cooling air pipe outputs hot air which is discharged into the atmosphere.
5. The dry-fire tolerant riser heat exchanger of claim 3, wherein: the outlet end of the natural cooling air pipe (3) extends out of the outer cylinder body (7), the end face is in a slope bevel shape, the length of the upper end face of the outlet port is larger than that of the lower end face, and the angle of the slope is 25-35 degrees.
6. The dry-fire tolerant riser heat exchanger of claim 5, wherein: the bevel angle is 30 °.
7. The dry-fire tolerant riser heat exchanger of claim 1, wherein: the heat exchange tube (2) comprises an inlet end and an outlet end, media are arranged inside the tube, wherein the inlet end is an inlet of water or low-temperature heat media, and the outlet end is an outlet of a steam-water mixture or high-temperature heat media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982913.2U CN210980909U (en) | 2019-11-15 | 2019-11-15 | Dry-burning resistant ascending pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982913.2U CN210980909U (en) | 2019-11-15 | 2019-11-15 | Dry-burning resistant ascending pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210980909U true CN210980909U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921982913.2U Active CN210980909U (en) | 2019-11-15 | 2019-11-15 | Dry-burning resistant ascending pipe heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452715A (en) * | 2019-09-04 | 2019-11-15 | 华泰永创(北京)科技股份有限公司 | Rise pipe evaporator, coking system and the cooling means for rising pipe evaporator |
-
2019
- 2019-11-15 CN CN201921982913.2U patent/CN210980909U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452715A (en) * | 2019-09-04 | 2019-11-15 | 华泰永创(北京)科技股份有限公司 | Rise pipe evaporator, coking system and the cooling means for rising pipe evaporator |
| CN110452715B (en) * | 2019-09-04 | 2024-08-13 | 华泰永创(北京)科技股份有限公司 | Riser evaporator, coking system and cooling method of riser evaporator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 210000 No. 749, Binjiang Road, Jiangning Economic Development Zone, Nanjing, Jiangsu Patentee after: Nanjing Huadian energy saving and environmental protection Co.,Ltd. Address before: No.749, dixiu Road, Jiangning District, Nanjing City, Jiangsu Province 211161 Patentee before: NANJING HUADIAN ENERGY-SAVING AND ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |