CN202018208U - Internal electric roller shutter freeze-proofing device for direct air cooling condenser A-shaped frame - Google Patents
Internal electric roller shutter freeze-proofing device for direct air cooling condenser A-shaped frame Download PDFInfo
- Publication number
- CN202018208U CN202018208U CN201120072320XU CN201120072320U CN202018208U CN 202018208 U CN202018208 U CN 202018208U CN 201120072320X U CN201120072320X U CN 201120072320XU CN 201120072320 U CN201120072320 U CN 201120072320U CN 202018208 U CN202018208 U CN 202018208U
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- roller shutter
- freeze
- air cooling
- direct air
- internal electric
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Abstract
The utility model relates to direct air cooling technology for power stations and petrochemical industry, in particular to an internal electric roller shutter freeze-proofing device for a direct air cooling condenser A-shaped frame. The internal electric roller shutter freeze-proofing device is characterized in that one end of a roller shutter is fixed into a reel and rolled up, the other end of the roller shutter is fixedly connected onto a pulling rope, the pulling rope bypassing a fixed pulley at an upper end is connected with a pulling shaft at a lower end to form a closed loop, one end of the pulling shaft is connected with a stop motor, and all of the reel, a spring device, the pulling shaft and fixed pulleys are fixed onto the A-shaped frame. The internal electric roller shutter freeze-proofing device has the advantages of low cost, convenience in operation and use, flexibility in use and economization of time and labor. The roller shutter device is mounted inside the condenser A-shaped frame and unaffected by environments, thereby being more convenient in running and maintenance. The internal electric roller shutter freeze-proofing device is simple in structure and small in running resistance, a complete direct air cooling system condenser tube bundle needs less electric driving devices and has no mutual interference with other equipment, and technical reform for an air cooling system put into operation is more convenient.
Description
Technical field: the utility model relates to power station, the direct air-cooled technology of petrochemical industry, is specially the inner electric rolling defroster of a kind of direct air cooled condenser A type frame.
Background technology: bank of condenser pipes is the pipe row that many steel oval pipes are formed, and triangularity is arranged, is installed on the steel bracing frame, is referred to as A type frame.Direct air cooled condenser is that the steam that steam turbine is discharged is passed into condenser tube is intrafascicular, bank of condenser pipes is a heat exchange unit, fixing aluminum thermal fin in the tube bank, by being arranged at the axial flow blower forced ventilation under the A type frame, make the cross-ventilation of fin realize heat exchange, thereby steam is condensed into water.The heat exchanging process of air cooling tubes condenser is that steam is condensed into water in the intrafascicular release heat of condenser tube of A type frame, and axial flow blower forces cold air to flow through the process that the tube bank fin surface is taken away heat.The axial flow blower effect is to accelerate cold air to flow through the tube bank fin, improves heat exchange efficiency.Under different environment temperatures, adjust the heat exchange amount by the air output of adjusting axial flow blower, when environment temperature is low to a certain degree the time, stop the blower fan air-supply and only rely on the natural air convection current to realize heat exchange.Area in north of china in winter cold, still can not arrive the antifreeze requirement of tube bank by operation adjustment under the extremely low environment temperature, thereby may make the condensate water in the tube bank freeze to block pipeline, therefore, just need to reduce the cross-ventilation of restraining between fin regional winter in this class, prevent to restrain and freeze.At present, the antifreezing measures of the air cooling device of going into operation at northern area only rely on manually at tube bank loam cake cotton-wadded quilt, or shutoff blower fan air channel, reduce flowing of air, big, the consuming time length of this mode workload, poor stability and operate dangerous.Therefore, the defroster of developing a kind of automatic control is very necessary.Do not find to have to solve this type of technical scheme through State Patent Office's CD query and search.
Summary of the invention: the purpose of this utility model be to provide a kind of simple in structure, with low cost, easy for operation, use flexibly, save time, laborsaving, can reduce the cross-ventilation between A type frame tube bank fin, prevent to restrain the inner electric rolling defroster of the direct air cooled condenser A type frame that freezes.The purpose of this utility model is achieved in that it comprises spool, spring assembly, stop motor, axis of traction, roller shutter, pull rope, A type frame, fixed pulley, axial flow blower, be characterised in that: roller shutter one end is fixed in the spool and rolls, the roller shutter other end is fixedly connected on the pull rope, pull rope is walked around the upper end fixed pulley and the lower end axis of traction connects and composes the closed-loop path, and axis of traction one end is connected with the stop motor.Spool, spring assembly, axis of traction, fixed pulley all are fixed on the A type frame.The utility model has the advantages that: with low cost, easy for operation, use flexibly, save time, laborsaving, the utility model roller blind device is installed in condenser A type frame inside, and is not affected by environment, moves and safeguard more convenient.Simple in structure, running resistance is little, and it is less that a whole set of direct air cooling system bank of condenser pipes need dispose Vidacare corp, does not disturb mutually with other equipment, and it is also more convenient that the air cooling system that has put into effect is undergone technological transformation.
Description of drawings: Fig. 1 is the utility model structural principle schematic side view; Fig. 2 is that the utility model structural principle master looks schematic diagram.
The specific embodiment: it comprises spool 1, spring assembly 2, stop motor 3, axis of traction 4, roller shutter 5, pull rope 6, A type frame 7, fixed pulley 8, axial flow blower 9, be characterised in that: roller shutter 5 one ends are fixed in the spool 1 and roll, roller shutter 5 other ends are fixedly connected on the pull rope 6, pull rope 6 is walked around upper end fixed pulley 8 and is connected and composed the closed-loop path with lower end axis of traction 4, and axis of traction 4 one ends are connected with stop motor 3.Spool 1, spring assembly 2, axis of traction 4, fixed pulley 8 all are fixed on the A type frame 7.The utility model operation principle and the course of work are: when environment temperature low, need to reduce the cross-ventilation between A type frame 7 tube bank fin, when tube bank is incubated, starting stop motor 3 is just changeing, fixedly the pull rope 6 of roller shutter 5 upwards draws high roller shutter 5, make spool spring 2 stretch tensioning, roller shutter 5 is opened up to A type frame 7 tops.When the cross-ventilation between need increase A type frame 7 tube bank fin, start 3 counter-rotatings of stop motor, fixedly the pull rope 6 downward release roller shutters 5 of roller shutter 5 are rolled roller shutter 5 by spring 2 elastic force effects, as shown in Figure 2.The bit switch of limiting on the axis of traction, the bit switch contact point of limiting on the pull rope, limit switch signal insert in the stop motor control cabinet, realize automation control, open and roll when roller shutter and reach the precalculated position and stop the stop motor immediately automatically, prevent that stop motor stall and pull rope from coming off.Every bank of condenser pipes all disposes independent roller shutter, and required acting force of the spring is little when rolling, and the roller shutter upper end is fixed on the pull rope, and the roller shutter fixture on the loading and unloading pull rope can realize the requirement that arbitrary bank of condenser pipes is antifreeze.
Claims (2)
1. the inner electric rolling defroster of a direct air cooled condenser A type frame, it comprises spool, spring assembly, stop motor, axis of traction, roller shutter, pull rope, A type frame, fixed pulley, axial flow blower, be characterised in that: roller shutter one end is fixed in the spool and rolls, the roller shutter other end is fixedly connected on the pull rope, pull rope is walked around the upper end fixed pulley and the lower end axis of traction connects and composes the closed-loop path, and axis of traction one end is connected with the stop motor.
2. the inner electric rolling defroster of a kind of direct air cooled condenser A type frame according to claim 1, it is characterized in that: spool, spring assembly, axis of traction, fixed pulley all are fixed on the A type frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120072320XU CN202018208U (en) | 2011-03-18 | 2011-03-18 | Internal electric roller shutter freeze-proofing device for direct air cooling condenser A-shaped frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120072320XU CN202018208U (en) | 2011-03-18 | 2011-03-18 | Internal electric roller shutter freeze-proofing device for direct air cooling condenser A-shaped frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018208U true CN202018208U (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120072320XU Expired - Lifetime CN202018208U (en) | 2011-03-18 | 2011-03-18 | Internal electric roller shutter freeze-proofing device for direct air cooling condenser A-shaped frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN105157443A (en) * | 2014-05-30 | 2015-12-16 | 国网山西省电力公司电力科学研究院 | Anti-freezing device of direct air cooling system and anti-freezing method with application of the anti-freezing device |
| CN113465406A (en) * | 2021-07-09 | 2021-10-01 | 西安西热节能技术有限公司 | Sealing and anti-freezing device and method for indirect air cooling tower |
-
2011
- 2011-03-18 CN CN201120072320XU patent/CN202018208U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN105157443A (en) * | 2014-05-30 | 2015-12-16 | 国网山西省电力公司电力科学研究院 | Anti-freezing device of direct air cooling system and anti-freezing method with application of the anti-freezing device |
| CN105157443B (en) * | 2014-05-30 | 2018-05-25 | 国网山西省电力公司电力科学研究院 | A kind of antifreeze method of the defroster and application of the direct air cooling system device |
| CN113465406A (en) * | 2021-07-09 | 2021-10-01 | 西安西热节能技术有限公司 | Sealing and anti-freezing device and method for indirect air cooling tower |
| CN113465406B (en) * | 2021-07-09 | 2023-08-08 | 西安西热节能技术有限公司 | Indirect air cooling tower sealing and antifreezing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Chenguang Document name: Notice of termination of patent right |
|
| DD01 | Delivery of document by public notice |