CN210219733U - Wear-resisting type over heater device is stabilized to high efficiency - Google Patents
Wear-resisting type over heater device is stabilized to high efficiency Download PDFInfo
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- CN210219733U CN210219733U CN201920839730.9U CN201920839730U CN210219733U CN 210219733 U CN210219733 U CN 210219733U CN 201920839730 U CN201920839730 U CN 201920839730U CN 210219733 U CN210219733 U CN 210219733U
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- 239000000779 smoke Substances 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000013021 overheating Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000005192 partition Methods 0.000 claims description 30
- 229920006395 saturated elastomer Polymers 0.000 description 10
- 238000012546 transfer Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a high-efficiency stable wear-resistant superheater device, which comprises an inlet smoke box, an overheating smoke box and an outlet smoke box which are communicated in sequence; a plurality of heat exchange bent pipes are spirally arranged in the overheating smoke box; the heat exchange bent pipe comprises an overheated steel pipe and fins welded on the overheated steel pipe; an inlet header and an outlet header are arranged on one side of the outer part of the overheating smoke box in parallel; the inlet header is communicated with the desuperheater through the steam header; the inlet header is provided with a thermometer connecting pipe and a pressure gauge connecting pipe, and the junction of the inlet header and the steam header is provided with a temperature sensor connecting pipe; the other side of the outer part of the superheated smoke box is provided with a steam inlet connecting pipe and a steam outlet connecting pipe.
Description
Technical Field
The utility model belongs to the technical field of the over heater, concretely relates to wear-resisting type over heater device is stabilized to high efficiency.
Background
A superheater is a part of a boiler that heats steam from a saturation temperature to a superheat temperature, and is also called a steam superheater. The superheater can be divided into a convection type, a radiation type and a semi-radiation type according to the heat transfer mode; according to the structure characteristics, the device can be divided into a serpentine tube type, a screen type, a wall type and a wall wrapping type. They are all composed of a plurality of parallel pipes and inlet and outlet headers.
Most industrial boilers are not equipped with superheaters, since many industrial processes and living facilities only require saturated steam. In power stations, locomotives and marine boilers, superheaters are generally installed to improve the cycle thermal efficiency of the entire steam power plant.
When the existing superheater heats saturated steam, the situation of exceeding a set temperature value can occur, and when the saturated steam enters the superheater, water drops can occur after the saturated steam is cooled, and the water drops are unevenly distributed in the superheater, so that the thermal deviation of the superheater can be aggravated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the aforesaid among the prior art not enough, provide a wear-resisting type over heater device is stabilized to the high efficiency to solve or improve above-mentioned problem.
In order to achieve the purpose, the utility model adopts the technical proposal that:
an efficient stable wear-resistant superheater device comprises an inlet smoke box, an overheating smoke box and an outlet smoke box which are sequentially communicated;
a plurality of heat exchange bent pipes are spirally arranged in the overheating smoke box; the heat exchange bent pipe comprises an overheated steel pipe and fins welded on the overheated steel pipe; an inlet header and an outlet header are arranged on one side of the outer part of the overheating smoke box in parallel; the inlet header is communicated with the desuperheater through the steam header; the inlet header is provided with a thermometer connecting pipe and a pressure gauge connecting pipe, and the junction of the inlet header and the steam header is provided with a temperature sensor connecting pipe; the other side of the outer part of the superheated smoke box is provided with a steam inlet connecting pipe and a steam outlet connecting pipe;
one end of the desuperheater cylinder is connected with the first flange cover, and the other end of the desuperheater cylinder is connected with the second flange cover; a vertical partition plate is arranged in the cylinder body close to one end of the second flange cover along the vertical direction; an annular partition plate is arranged on the inner wall of the cylinder body between the vertical partition plate and the first flange cover; a heat exchange cavity for steam heat exchange is formed between the annular partition plate and the vertical partition plate in the cylinder; a coiled pipe is spirally arranged in the heat exchange cavity, the water inlet end of the coiled pipe is communicated with a water inlet pipe, and the water outlet end of the coiled pipe is communicated with a water outlet pipe; the water inlet pipe and the water outlet pipe are both provided with a flowmeter and an electric valve;
the barrel is provided with at least one steam inlet and at least two steam outlets; the steam inlet and the steam outlet are communicated with the heat exchange cavity; a first thermal resistance sleeve is arranged at an opening at the upper end of the cylinder body, and a second thermal resistance sleeve is arranged at an opening at the lower end of the cylinder body;
the first flange cover is welded at one end of the cylinder body; the second flange cover comprises a flange and an end cover arranged at one end of the flange; the second flange cover is fixedly connected with the cylinder body through a flange; the end cover is provided with a sleeve for sleeving the water inlet pipe and the water outlet pipe.
Preferably, the fins have a size of 41mm 181 mm.
Preferably, a plurality of fins are welded between two adjacent superheated steel pipes; a plurality of fins set up in parallel, and the distance between two fins is 30 mm.
Preferably, PT100 thermal resistance sensors are arranged in the temperature sensor connecting pipe, the thermometer connecting pipe, the first thermal resistance sleeve and the second thermal resistance sleeve, and a BST6600 pressure transmitter is arranged in the pressure gauge connecting pipe; the opening on the cylinder body is provided with a pipe joint, and a BST6600 pressure transmitter is arranged in the pipe joint.
Preferably, the flow meter, electrically operated valve, PT100 thermal resistance sensor and BST6600 pressure transmitter are all electrically connected to an external computer.
Preferably, the flow meter is a LDG-MIK electromagnetic flow meter.
Preferably, the electric valve is DN50 electric flange butterfly valve.
Preferably, a guard plate is arranged between the annular partition plate and the inner wall of the cylinder body.
The utility model provides a wear-resisting type over heater device is stabilized to high efficiency has following beneficial effect:
the utility model can ensure that the superheater does not overtemperature, can adjust the air temperature to a specified value, and has certain sensitivity; effectively avoid the saturated steam to appear the water droplet after the desuperheating, cause the water droplet uneven distribution in the over heater, aggravate over heater thermal deviation.
Drawings
FIG. 1 is a front view of a high efficiency, stable, wear resistant superheater arrangement.
Fig. 2 and 3 are side views of a highly efficient stable wear resistant superheater arrangement.
Fig. 4 is a structural diagram of a fin of the high-efficiency stable wear-resistant superheater device.
Fig. 5 is a structural diagram of an overheated steel tube of the high-efficiency stable wear-resistant superheater device.
FIG. 6 is a block diagram of a desuperheater of a high efficiency, stable, wear resistant superheater device.
FIG. 7 is a longitudinal cross-sectional view of a high efficiency stable wear resistant superheater de-superheater.
FIG. 8 is a cross-sectional view of an efficient stable wear resistant superheater arrangement.
FIG. 9 is a structural diagram of a second flange of the high-efficiency stable wear-resistant superheater device.
Wherein, 1, an inlet smoke box; 2. an overheating smoke box; 3. an outlet smoke box; 4. a support leg; 5. a desuperheater; 6. an inlet header; 7. an outlet header; 8. a vapor collection box; 9. a vapor inlet connection pipe; 10. a vapor outlet connection pipe; 11. a temperature sensor adapter; 12. a thermometer adapter; 13. a pressure gauge connecting pipe; 14. a superheated steel pipe; 15. connecting a sleeve; 16. a fin; 51. a barrel; 52. a serpentine tube; 53. a water outlet pipe; 54. a water inlet pipe; 55. a vertical partition; 56. an annular partition plate; 57. a slider; 58. a guard plate; 59. a first flange cover; 510. a second flange cover; 511. a stud bolt; 512. a nut; 513. a steam inlet; 514. a steam outlet; 517. a heat exchange cavity; 518. a pipe joint; 519. a first thermal resistance sleeve; 520. a second thermal resistance sleeve; 521. a flange; 522. an end cap; 523. a sleeve.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
According to one embodiment of the application, referring to fig. 1-5, the high-efficiency stable wear-resistant superheater device of the scheme comprises an inlet smoke box 1, an overheating smoke box 2 and an outlet smoke box 3 which are communicated in sequence.
Wherein, the inlet smoke box 1 is used for the inlet of high-temperature smoke; the superheated smoke box 2 is used for heating the saturated steam introduced into the superheated smoke box and heating the saturated steam to a preset temperature value range; the outlet smoke box 3 is used for guiding out the smoke after heat exchange.
A plurality of heat exchange bent pipes are spirally arranged in the overheating smoke box 2, and each heat exchange bent pipe comprises an overheating steel pipe 14 and a fin 16 welded on the overheating steel pipe 14.
A plurality of fins 16 are welded between two adjacent superheated steel pipes 14, the fins 16 are arranged in parallel, and the distance between the two fins 16 is 30 mm.
Welding fin 16 on the overheated steel pipe 14, because the existence of fin 16, the flue gas can form a plurality of through-hole when getting into, and the flue gas forms the vortex in the through-hole, and anomalous striking overheated steel pipe 14 surface increases the heat transfer area between overheated steel pipe 14 and the high temperature flue gas, and then increases heat exchange efficiency.
An inlet header 6 and an outlet header 7 are arranged on one side of the outer part of the overheating smoke box 2 in parallel, and the inlet header 6 is communicated with the desuperheater 5 through a steam header 8; the inlet header 6 is provided with a thermometer connecting pipe 12 and a pressure gauge connecting pipe 13, the junction of the inlet header 6 and the steam header 8 is provided with a temperature sensor connecting pipe 11, and the other side of the outer part of the superheated smoke box 2 is provided with a steam inlet connecting pipe and a steam outlet connecting pipe 10.
Wherein, PT100 thermal resistance sensors are respectively arranged in the temperature sensor connecting pipe 11 and the thermometer connecting pipe 12, and a BST6600 pressure transmitter is arranged in the pressure gauge connecting pipe 13.
Arrange desuperheater 5 at the over heater entrance, can protect the over heater not overtemperature, but if when the steam in desuperheater 5 was less than required temperature, the steam that the temperature was crossed low met with the saturated steam of over heater entrance, after the saturated steam desuperheating, then the water droplet can appear, the water droplet distributes unequally in the over heater, can aggravate over heater thermal deviation.
Therefore, a temperature sensor is arranged at the junction of the inlet header 6 and the steam header 8 and is used for acquiring the temperature in the desuperheater 5 in real time and uploading the acquired temperature information to an external computer in real time, and the external computer can be arranged in a monitoring room and is used for monitoring the temperature value led into the superheater in real time; if the staff finds that the temperature value is abnormal, the maintenance and the overhaul can be carried out immediately.
Besides, a thermometer connecting pipe 12 and a pressure gauge connecting pipe 13 are arranged on the inlet header 6, and the temperature and the pressure of the temperature-reducing steam entering the superheater are monitored in real time by installing a PT100 thermal resistance sensor and a BST6600 pressure transmitter, so that the temperature of the temperature-reducing gas meets the requirement and the pressure is stable.
The PT100 thermal resistance sensor and the BST6600 pressure transmitter upload the temperature information and the pressure information acquired in real time to an external computer, and a worker can monitor the dynamic information of the gas on the computer in real time to ensure that the entering cooling gas meets the industrial requirements.
In addition, if the temperature in the desuperheater 5 exceeds the set temperature value, the effect of reducing the temperature of the superheated steam cannot be achieved, and the derived superheated steam temperature is higher than the set temperature and does not meet the industrial requirements, so the requirement for the steam temperature in the desuperheater 5 is high.
Referring to fig. 6-9, the desuperheater 5 barrel 51 is attached at one end to a first flanged cap 59 and at the other end to a second flanged cap 510. The first flange cover 59 is fixed to one end of the cylinder 51 by welding.
The second flange cover 510 comprises a flange 521 and an end cover 522 arranged at one end of the flange 521, the second flange cover 510 is fixedly connected with the cylinder body 51 through the flange 521, and is matched with a nut 512 through a stud 511 to realize the fixed connection of the flange 521 and the cylinder body 51; the end cap 522 is provided with a sleeve 523, the sleeve 523 is provided with an opening, and the opening is used for fixing the water inlet pipe 54 and the water outlet pipe 53, so that the stability of the water inlet pipe 54 and the water outlet pipe 53 can be improved.
A vertical partition plate 55 is vertically arranged in the cylinder 51, and the vertical partition plate 55 is arranged close to the second flange 521 and divides the interior of the cylinder 51 into two parts.
An annular partition plate 56 is arranged on the inner wall of the cylinder body 51 between the vertical partition plate 55 and the first flange cover 59, and a protective plate 58 is arranged between the annular partition plate 56 and the inner wall of the cylinder body 51, wherein the protective plate 58 is used for supporting and protecting the annular partition plate 56. The annular partition plate 56 is matched with the vertical partition plate 55, so that a sealed space is formed in the barrel body 51, the heat transfer between steam and the outside of the barrel body 51 can be reduced, and the heat utilization rate is increased; meanwhile, the air tightness is improved, and the stability of the whole cavity is improved.
The heat exchange cavity 517 is formed in the cylinder body 51 between the annular partition plate 56 and the vertical partition plate 55, the coiled pipe 52 is installed in the heat exchange cavity 517, and the coiled pipe 52 is close to the annular partition plate 56 but only in contact with the annular partition plate, so that the extrusion degree is low. The annular partition 56 has a certain elasticity, and since the serpentine tubes 52 are expanded to a certain extent by the temperature change during the heat exchange of the serpentine tubes 52, the expanded distance can be buffered by the annular partition 56, thereby protecting the serpentine tubes 52.
The water inlet pipe 54 and the water outlet pipe 53 respectively penetrate through the vertical partition plate 55, and at least one sealing ring is arranged at the junction of the water inlet pipe 54, the water outlet pipe 53 and the vertical partition plate 55 to ensure the sealing performance. Wherein, the water inlet pipe 54 is communicated with the water inlet end of the coiled pipe 52, and the water outlet pipe 53 is communicated with the water outlet end of the coiled pipe 52.
The water inlet pipe 54 and the water outlet pipe 53 are both provided with a flow meter and an electric valve which are both electrically connected with an external computer.
The flow meter is an LDG-MIK electromagnetic flow meter, monitors and collects the water quantity flowing into the heat exchange cavity 517 through the water inlet pipe 54 and the water outlet pipe 53 in real time, and transmits the water quantity information to the computer terminal in the form of electric signals.
The electric valve is DN50 electric flange 521 butterfly valve, the opening amount of the valve is controlled by electric signal, and the electric valve is controlled by computer.
The cylinder body 51 is provided with at least one steam inlet 513 and a plurality of steam outlets 514; the steam inlet 513 and the steam outlet 514 are communicated with the heat exchange cavity 517; a first thermal resistance bushing 519 is installed at an upper end opening of the cylinder 51, and a second thermal resistance bushing 520 is installed at a lower end opening thereof.
The PT100 thermal resistance sensors are disposed in the first thermal resistance bushing 519 and the second thermal resistance bushing 520, and are configured to collect real-time temperature of steam in the heat exchange cavity 517 in real time and transmit the temperature information to a computer terminal.
The upper opening of the cylinder body 51 is provided with a pipe joint 518, a BST6600 pressure transmitter is arranged in the pipe joint 518 and used for monitoring the steam pressure value in the heat exchange cavity 517 in real time and transmitting the pressure information to the computer end in real time, so that the stability of the pressure in the heat exchange wall body is ensured.
The steam enters from the steam inlet 513, and after heat exchange is carried out through the coiled pipe 52, the effect of temperature reduction is achieved, and the steam is led out from the steam outlet 514.
The staff can carry out the heat transfer control at the computer end, and normal atmospheric temperature water (cooling water) is in getting into the coiled pipe 52 in heat transfer cavity 517 from inlet tube 54, because coiled pipe 52 is the return bend of spiral setting, can increase the flow time of normal atmospheric temperature water in heat transfer cavity 517, and then increase heat exchange efficiency.
The steam is introduced from the steam inlet 513 and enters the heat exchange cavity 517, the steam with higher temperature exchanges heat with the normal temperature water in the coiled pipe 52, the temperature of the steam is reduced, and the steam is led out from the steam outlet 514; the temperature of the normal temperature water after heat exchange rises and is led out from the water outlet pipe 53.
Meanwhile, the temperature of the derived steam is collected in real time at the detection port, and if the temperature is higher than the expected height, a worker can control a DN50 electric flange 521 butterfly valve on the water inlet pipe 54 through a computer to increase the flow of the normal-temperature water (cooling water) until the derived steam temperature value is within a preset temperature value range.
Of course, the operator can also manually control the DN50 electric flange 521 butterfly valve to adjust the water flow in the butterfly valve.
Namely, the steam temperature and the steam outlet temperature in the desuperheater 5 are monitored in real time, the flow of the water inlet pipe 54 can be controlled according to the collected steam outlet temperature, the steam outlet temperature is adjusted, the stability of the outlet steam temperature is ensured, and the requirement of a superheater is met.
The utility model can ensure that the superheater does not overtemperature, can adjust the air temperature to a specified value, and has certain sensitivity; effectively avoid the saturated steam to appear the water droplet after the desuperheating, cause the water droplet uneven distribution in the over heater, aggravate over heater thermal deviation.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (8)
1. The utility model provides a wear-resisting type over heater device is stabilized to high efficiency which characterized in that: comprises an inlet smoke box, an overheating smoke box and an outlet smoke box which are communicated in sequence;
a plurality of heat exchange bent pipes are spirally arranged in the overheating smoke box; the heat exchange elbow comprises an overheated steel pipe and fins welded on the overheated steel pipe; an inlet header and an outlet header are arranged on one side of the outer part of the overheating smoke box in parallel; the inlet header is communicated with the desuperheater through the steam header; the inlet header is provided with a thermometer connecting pipe and a pressure gauge connecting pipe, and the junction of the inlet header and the steam header is provided with a temperature sensor connecting pipe; the other side of the outer part of the superheated smoke box is provided with a steam inlet connecting pipe and a steam outlet connecting pipe;
one end of the desuperheater cylinder is connected with the first flange cover, and the other end of the desuperheater cylinder is connected with the second flange cover; a vertical partition plate is arranged in the cylinder body close to one end of the second flange cover along the vertical direction; an annular partition plate is arranged on the inner wall of the cylinder body between the vertical partition plate and the first flange cover; a heat exchange cavity for steam heat exchange is formed between the annular partition plate and the vertical partition plate in the cylinder; a coiled pipe is spirally arranged in the heat exchange cavity, the water inlet end of the coiled pipe is communicated with a water inlet pipe, and the water outlet end of the coiled pipe is communicated with a water outlet pipe; the water inlet pipe and the water outlet pipe are both provided with a flowmeter and an electric valve;
the barrel is provided with at least one steam inlet and at least two steam outlets; the steam inlet and the steam outlet are communicated with the heat exchange cavity; a first thermal resistance sleeve is arranged at an opening at the upper end of the cylinder body, and a second thermal resistance sleeve is arranged at an opening at the lower end of the cylinder body;
the first flange cover is welded at one end of the cylinder body; the second flange cover comprises a flange and an end cover arranged at one end of the flange; the second flange cover is fixedly connected with the cylinder body through a flange; the end cover is provided with a sleeve for sleeving the water inlet pipe and the water outlet pipe.
2. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: the fin is 41mm 181mm in size.
3. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: a plurality of warping pieces are welded between every two adjacent overheated steel tubes; a plurality of the fin sets up in parallel, and the distance between two fins is 30 mm.
4. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: PT100 thermal resistance sensors are arranged in the temperature sensor connecting pipe, the thermometer connecting pipe, the first thermal resistance sleeve and the second thermal resistance sleeve, and a BST6600 pressure transmitter is arranged in the pressure gauge connecting pipe; the opening on the cylinder body is provided with a pipe joint, and a BST6600 pressure transmitter is arranged in the pipe joint.
5. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: the flowmeter, the electric valve, the PT100 thermal resistance sensor and the BST6600 pressure transmitter are electrically connected with an external computer.
6. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: the flowmeter is an LDG-MIK electromagnetic flowmeter.
7. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: the electric valve is a DN50 electric flange butterfly valve.
8. The high efficiency stable wear resistant superheater apparatus of claim 1, wherein: a guard plate is arranged between the annular partition plate and the inner wall of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839730.9U CN210219733U (en) | 2019-05-31 | 2019-05-31 | Wear-resisting type over heater device is stabilized to high efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839730.9U CN210219733U (en) | 2019-05-31 | 2019-05-31 | Wear-resisting type over heater device is stabilized to high efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210219733U true CN210219733U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920839730.9U Withdrawn - After Issue CN210219733U (en) | 2019-05-31 | 2019-05-31 | Wear-resisting type over heater device is stabilized to high efficiency |
Country Status (1)
| Country | Link |
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| CN (1) | CN210219733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207097A (en) * | 2019-05-31 | 2019-09-06 | 四川陆亨能源科技有限公司 | A kind of efficient stable wear-resisting type superheater device |
-
2019
- 2019-05-31 CN CN201920839730.9U patent/CN210219733U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207097A (en) * | 2019-05-31 | 2019-09-06 | 四川陆亨能源科技有限公司 | A kind of efficient stable wear-resisting type superheater device |
| CN110207097B (en) * | 2019-05-31 | 2023-12-26 | 四川陆亨能源科技有限公司 | Efficient stable wear-resistant superheater device |
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