CN210154365U - Covering device, cold-proof and anti-freezing unit and cold-proof and anti-freezing energy-saving system - Google Patents
Covering device, cold-proof and anti-freezing unit and cold-proof and anti-freezing energy-saving system Download PDFInfo
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- CN210154365U CN210154365U CN201920729909.9U CN201920729909U CN210154365U CN 210154365 U CN210154365 U CN 210154365U CN 201920729909 U CN201920729909 U CN 201920729909U CN 210154365 U CN210154365 U CN 210154365U
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- 238000007710 freezing Methods 0.000 title claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 230000008014 freezing Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 208000001034 Frostbite Diseases 0.000 abstract description 14
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a direct air cooling unit winter operation winter protection energy-saving technology field that prevents frostbite discloses a cover device and winter protection unit and winter protection economizer system that prevents frostbite. The covering device comprises at least one plugging unit, and the plugging unit comprises; a frame; an annular rope body, one end of which is supported by a rotatable first roller and the other end of which is supported by a second roller; a first cover cloth, wherein a first end of the first cover cloth is fixed on one side of the annular rope body, and a second end of the first cover cloth is fixed relative to the frame near the first roller; a second cover cloth, wherein the first end of the second cover cloth is fixed on the other side of the annular rope body, and the second end of the second cover cloth is close to the second roller and is fixed relative to the frame. The covering device of the cold-proof and anti-freezing energy-saving system is arranged at the outlet of the air cooling fan, and shields cold air entering from the side of the air cooling fan 3, thereby playing the roles of energy conservation, synergy, cold proofing and freezing prevention.
Description
Technical Field
The utility model relates to a generator factory direct air cooling system winter protection energy-conserving technical field that prevents frostbite specifically relates to a cover device and winter protection unit and winter protection economizer system that prevents frostbite.
Background
The direct air cooling technology is adopted in power plants in China, and one of the problems of the direct air cooling technology is that when the direct air cooling technology is used in winter, a condenser finned tube bundle is easy to freeze, and the safety of a generator set is damaged due to the fact that an air inlet butterfly valve is not closed tightly. Some direct air-cooled condensers adopt a windproof wall for cold prevention and freezing prevention, some direct air-cooled condensers adopt manual covering tarpaulin, and some direct air-cooled condensers adopt partial row withdrawing operation (the partial row withdrawing operation refers to the stop operation of partial cooling units of the direct air-cooled condensers and corresponding air-cooled fans). The adoption of the windproof wall is not economical, the manual strength of manually laying tarpaulin is high, and the adoption of the mode of retreating operation has the defect of reducing the efficiency of the generator set.
Disclosure of Invention
The utility model aims at solving the problem that the easy freezing and winter intake butterfly valve of condenser finned tube bundle in winter of closing do not lead to the system to freeze harm generating set, overcome the defect that current winter protection technique exists, a cover device and the frost-proof unit of winter protection and the frost-proof economizer system of winter protection are provided, should cover device and the frost-proof unit of winter protection and the frost-proof economizer system of winter protection and optimize the design under the condition of not destroying existing structure, compromise the frost-proof convenience with the operation of winter protection, ability automatic control again can manually operation, be favorable to increasing efficiency energy-conservation simultaneously.
In order to achieve the above object, an aspect of the present invention provides a covering device, comprising at least one plugging unit, the plugging unit comprising;
a frame;
an annular rope body, one end of which is supported by a rotatable first roller and the other end of which is supported by a second roller;
a first cover cloth, wherein a first end of the first cover cloth is fixed on one side of the annular rope body, and a second end of the first cover cloth is fixed relative to the frame near the first roller;
a second cover cloth, wherein the first end of the second cover cloth is fixed on the other side of the annular rope body, and the second end of the second cover cloth is close to the second roller and is fixed relative to the frame.
Furthermore, a plurality of movable beams perpendicular to the extending direction of the annular rope body are arranged on the first cover cloth at intervals along the extending direction of the annular rope body, and the positions of the movable beams can be adjusted on the rack along the extending direction of the annular rope body; and/or the presence of a gas in the gas,
a plurality of movable beams perpendicular to the extending direction of the annular rope body are arranged on the second cover cloth at intervals along the extending direction of the annular rope body, and the positions of the movable beams can be adjusted on the rack along the extending direction of the annular rope body.
Furthermore, the movable beam comprises a movable beam main body and movable parts positioned at two ends of the movable beam main body, and the annular rope body penetrates through the hole in the movable beam main body.
Further, a track is arranged on the rack of the plugging unit, and the moving part is arranged to be capable of running along the track;
and the rack of the plugging unit is also provided with a limiting device, and the limiting device can limit the limiting positions of the first cover cloth and the second cover cloth.
Further, the distance between the first roller and the second roller can be adjusted.
Furthermore, an adjusting screw capable of adjusting the position of the second roller is arranged on the second roller, and the other end of the adjusting screw is fixed through a base.
Further, the plugging unit is provided with at least two parallel annular rope bodies; and/or the blocking unit is provided with at least two parallel first rollers and second rollers.
Furthermore, the number of the plugging units is three, and the three plugging units comprise a first plugging unit positioned in the middle and second plugging units positioned on two sides of the first plugging unit;
the first plugging unit comprises a motor, and the motor comprises a first output shaft and a second output shaft; the first output shaft and the second output shaft are respectively connected with the first rolling shaft in the first plugging unit through a first connector;
the first roller of the second plugging unit is connected with the first roller of the first plugging unit through a second connector.
The utility model discloses the second aspect provides a unit prevents frostbite of winter protection, the unit prevents frostbite of winter protection include the air cooling fan and according to above the covering device.
The utility model discloses the third aspect provides a winter protection economizer system that prevents frostbite, the winter protection economizer system that prevents frostbite includes condenser and at least more than one the unit that prevents frostbite.
Through the technical scheme, the covering device is placed at the outlet of the air cooling fan, cold air entering from the side of the air cooling fan is shielded, the number of the shutdown lines of the cooling unit of the condenser is reduced, conditions are created for realizing the complete low-frequency operation or complete shutdown of the air cooling fan, a low-back-pressure operation environment is provided for the generator set, meanwhile, the hidden danger caused by the fact that the air inlet butterfly valve is not closed tightly is eliminated, the problems that the generator set is damaged by icing of the system and the like due to the fact that tarpaulin is manually laid in winter, partial operation of the air inlet butterfly valve is withdrawn and the air inlet butterfly valve is not closed tightly are solved, the efficiency of the generator set is improved, and the effects of energy conservation.
Drawings
Fig. 1 is a schematic view of a first plugging unit and a second plugging unit;
FIG. 2 is a view of the movable beam of FIG. 1;
FIG. 3 is a view of the second roller and adjustment screw and base of FIG. 1;
FIG. 4 is a schematic view showing a positional relationship between the cover device and the air-cooling fan;
fig. 5 is a schematic view of the connection of the motor and the first rollers of the three plugging units in fig. 4;
FIG. 6 is an enlarged cross-sectional view of the first and second connector structures of FIG. 4;
fig. 7 is a schematic diagram of the arrangement of an air cooling fan of the direct air cooling generator set.
Description of the reference numerals
1-a first plugging unit; 1' -a second plugging unit; 11-a looped rope; 12-a first roller; 12' -a second roller; 12' 1-adjusting screw; 12' 2-base; 13-a first drape; 13' -a first drape; 14-a walking beam; 141-a walking beam body; 142-a moving part; 1421-well; 1142-a moving part; 15-track; 21-a first connector; 21' -a second connector; 2, a motor; 3-air cooling fan; 4-speed reducer.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "central", "axial", "radial", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present invention, it is to be understood that the terms "away", "toward", "up", "down", "front", "back", "left", "right", and the like indicate orientations or positional relationships corresponding to orientations or positional relationships actually used; "inner and outer" refer to the inner and outer relative to the profile of the components themselves; this is for convenience in describing the invention and for simplicity in description, and is not intended to indicate that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
In order to achieve the above object, an aspect of the present invention provides a covering device, comprising at least one plugging unit, the plugging unit comprising;
a frame;
an annular rope body 11, one end of the annular rope body 11 is supported by a rotatable first roller 12, and the other end is supported by a second roller 12';
a first cover cloth 13, a first end of the first cover cloth 13 is fixed on one side of the annular rope body 11, and a second end of the first cover cloth 13 is fixed relative to the frame near the first roller 12;
a second cover cloth 13 ', a first end of the second cover cloth 13' is fixed on the other side of the annular rope body 11, and a second end of the second cover cloth 13 'is fixed relative to the frame near the second roller 12'.
Wherein, the covering device covers the outlet of the air cooling fan 3, and the air cooling fan 3 is arranged below the condenser. The covering device is placed at the outlet of the air cooling fan 3, cold air entering from the side of the air cooling fan 3 is shielded, conditions are created for reducing the number of shutdown lines of a cooling unit of the condenser and realizing the complete low-frequency operation or complete shutdown of the air cooling fan, a low-back-pressure operation environment is provided for the generator set, meanwhile, the hidden danger caused by the fact that an air inlet butterfly valve is not tightly closed is eliminated, and the effects of energy conservation, efficiency improvement, cold protection and freezing prevention are achieved.
Preferably, a plurality of movable beams 14 perpendicular to the extending direction of the annular rope body 11 are arranged on the first cover cloth 13 at intervals along the extending direction of the annular rope body 11, and the positions of the movable beams 14 can be adjusted on the machine frame along the extending direction of the annular rope body 11; and/or the presence of a gas in the gas,
a plurality of movable beams 14 perpendicular to the extending direction of the annular rope body 11 are arranged on the second cover cloth 13' at intervals along the extending direction of the annular rope body 11, and the positions of the movable beams 14 can be adjusted on the rack along the extending direction of the annular rope body 11.
Wherein, the first cover cloth 13 and the second cover cloth 13 'can be folded or unfolded along the direction of the annular rope body 11, and the cover cloth 13 and the second cover cloth 13' are riveted on the movable beam 14.
Preferably, the movable beam comprises a movable beam main body 141 and movable parts 142 at two ends of the movable beam main body, and the annular rope body 11 passes through the hole 1421 on the movable beam main body.
Wherein, the moving member 142 may adopt a roller. The number of the holes 1421 of the movable beam body is plural, and the holes 1421 having an equal distance from the track are selected when the circular rope body 11 passes through the holes 1421 of the movable beam body.
Preferably, a track 15 is arranged on the frame of the plugging unit, and the moving part 142 is arranged to be capable of running along the track 15;
the frame of the blocking unit is further provided with a limiting device, and the limiting device can limit the limiting positions of the first cover cloth 13 and the second cover cloth 13'. The limiting device is set to be a limiting switch.
The track 15 is a C-shaped channel steel, the roller is positioned in the C-shaped channel steel, and the first cover cloth 13 and the second cover cloth 13' are driven by the roller to open and close as required by the traction of the annular rope body 11; the limit device is provided as a limit switch, and limit position definition of the first cover cloth 13 and the second cover cloth 13' is realized through the engagement of the limit switch.
Preferably, the distance between said first roller 12 and said second roller 12' is adjustable.
The first roller 12 is a roller, and the second roller 12' is a fixed pulley.
Preferably, an adjusting screw 12 '1 capable of adjusting the position of the second roller 12' is arranged on the second roller 12 ', and the other end of the adjusting screw 12' 1 is fixed by a base.
One end of the adjusting screw 12 ' 1 is connected with the fixed pulley through a thread, the other end of the adjusting screw 12 ' 1 is connected with the base through a thread, the position of the adjusting screw 12 ' 1 on the base can be adjusted along the axial direction of the adjusting screw 12 ' 1, and then the position of the second roller 12 ' is adjusted
Preferably, the plugging unit is provided with at least two parallel annular rope bodies 11; and/or the blocking unit is provided with at least two parallel first rollers 12 and second rollers 12'.
Preferably, the blocking unit employs two parallel endless ropes 11 and two parallel first and second rollers 12 and 12'.
Preferably, the number of the plugging units is three, and the three plugging units comprise a first plugging unit 1 positioned in the middle and second plugging units 1' positioned on two sides of the first plugging unit;
the first plugging unit comprises a motor, and the motor comprises a first output shaft and a second output shaft; the first output shaft and the second output shaft are respectively connected with the first roller 12 in the first plugging unit through a first connector 21;
the first roller 12 of the second plugging unit is connected with the first roller 12 of the first plugging unit 1 through a second connector 21'.
As shown in fig. 6, the motor is decelerated by a speed reducer 4, the first connector 21 is arranged in a key connection capable of moving axially, and the first roller 12 and the first output shaft and/or the second output shaft of the motor can be disengaged axially; the second connector 21' is provided as a detachable screw connection. The motor is arranged to be capable of rotating forwards and backwards, the first roller 12 is driven to rotate forwards and backwards through the forward and reverse rotation of the motor, the first cover cloth 13 and the second cover cloth 13' are driven to open and close, and the working strength of people is reduced through automatic control. When the automatic control fails, the first connector 21 and/or the second connector 21 'can be disconnected, and the first cover cloth 13 and the second cover cloth 13' can be driven to open and close by manually operating the forward and reverse rotation of the first roller 12.
The first rolling shaft 12 of the first plugging unit 1 is two short winding drums and is respectively connected with the first output shaft and the second output shaft of the motor, the axial size of the short winding drums is smaller than the vertical distance between the two parallel annular rope bodies 11, the first rolling shaft 12 of the second plugging unit 1' adopts a long winding drum, and the axial size of the long winding drum is larger than the vertical distance between the two parallel annular rope bodies 11.
The utility model discloses the second aspect provides a direct air cooling condenser winter protection unit that prevents frostbite, the unit that prevents frostbite of winter protection include air cooling fan 3 and above the covering device. The covering device of the anti-freezing unit covers the outlet of the air cooling fan 3, in winter, cold air entering from the side of the air cooling fan 3 is shielded by the covering device, back pressure is provided for the system, and the plurality of plugging units of the covering device can be opened or closed simultaneously or opened and closed independently.
The utility model discloses the third aspect provides a winter protection economizer system that prevents frostbite, the winter protection economizer system that prevents frostbite includes condenser and at least more than one the unit that prevents frostbite. The cold-proof and anti-freezing energy-saving system takes the cold-proof unit as a unit, and shields cold air entering from the air cooling fan 3 side by placing the covering device at the outlet of the air cooling fan 3, so that conditions are created for reducing the shutdown line number of the cooling unit of the condenser and realizing the complete low-frequency operation or complete shutdown of the air cooling fan, a low back pressure operation environment is provided for the generator set, meanwhile, the hidden danger caused by the untight closing of the air inlet butterfly valve is eliminated, and the effects of energy conservation, efficiency improvement, cold prevention and freezing prevention are achieved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical idea scope, can be right the utility model a multiple simple variant carries out, for example, can change the motor position into and distribute plugging device's both sides. The various specific features included may be combined in any suitable manner, for example, the first roller of the at least two plugging units may be a plurality of short rolls or a long roll. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A covering device, characterized in that the covering device comprises at least one plugging unit comprising;
a frame;
an annular rope body (11), one end of the annular rope body (11) is supported by a rotatable first roller (12), and the other end is supported by a second roller (12');
a first cover cloth (13), wherein a first end of the first cover cloth (13) is fixed on one side part of the annular rope body (11), and a second end of the first cover cloth (13) is fixed relative to the frame near the first roller (12);
a second cover cloth (13 '), a first end of the second cover cloth (13') is fixed on the other side of the annular rope body (11), and a second end of the second cover cloth (13 ') is fixed relative to the frame near the second roller (12').
2. Covering device according to claim 1, characterized in that a plurality of movable beams (14) perpendicular to the extending direction of the annular rope body (11) are arranged on the first cover cloth (13) at intervals along the extending direction of the annular rope body (11), and the movable beams (14) can be adjusted in position on the frame along the extending direction of the annular rope body (11); and/or the presence of a gas in the gas,
a plurality of movable beams (14) which are perpendicular to the extending direction of the annular rope body (11) are arranged on the second cover cloth (13') at intervals along the extending direction of the annular rope body (11), and the positions of the movable beams (14) can be adjusted on the machine frame along the extending direction of the annular rope body (11).
3. The covering device according to claim 2, characterized in that the walking beam comprises a walking beam body (141) and moving parts (142) at both ends of the walking beam body, the looped rope (11) passing through the hole (1421) of the walking beam body.
4. Covering device according to claim 3, wherein a rail (15) is arranged on the frame of the plugging unit, the moving part (142) being arranged to be able to run along the rail (15);
the frame of the blocking unit is also provided with a limiting device, and the limiting device can limit the limiting positions of the first cover cloth (13) and the second cover cloth (13').
5. Covering device according to claim 1, characterized in that the distance between said first roller (12) and said second roller (12') is adjustable.
6. Covering device according to claim 5, characterized in that said second roller (12 ') is provided with an adjusting screw (12' 1) capable of adjusting the position of said second roller (12 '), the other end of said adjusting screw (12' 1) being fixed by means of a base.
7. Covering device according to claim 1, wherein said plugging unit is provided with at least two parallel said looped strings (11); and/or the blocking unit is provided with at least two parallel first rollers (12) and second rollers (12').
8. Covering device according to claim 1, wherein said plugging units are provided in three, comprising a first plugging unit (1) in the middle and second plugging units (1') on both sides of said first plugging unit;
the first plugging unit comprises a motor, and the motor comprises a first output shaft and a second output shaft; the first output shaft and the second output shaft are respectively connected with the first roller (12) in the first plugging unit through a first connector (21);
the first roller (12) of the second plugging unit is connected with the first roller (12) of the first plugging unit (1) through a second connector (21').
9. Unit for cold protection and freezing protection, characterised in that it comprises an air cooling fan (3) and a cover device according to any one of claims 1-8.
10. A cold-proof, anti-freezing and energy-saving system, characterized by comprising a condenser and at least one cold-proof and anti-freezing unit as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920729909.9U CN210154365U (en) | 2019-05-20 | 2019-05-20 | Covering device, cold-proof and anti-freezing unit and cold-proof and anti-freezing energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920729909.9U CN210154365U (en) | 2019-05-20 | 2019-05-20 | Covering device, cold-proof and anti-freezing unit and cold-proof and anti-freezing energy-saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210154365U true CN210154365U (en) | 2020-03-17 |
Family
ID=69759826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920729909.9U Active CN210154365U (en) | 2019-05-20 | 2019-05-20 | Covering device, cold-proof and anti-freezing unit and cold-proof and anti-freezing energy-saving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210154365U (en) |
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2019
- 2019-05-20 CN CN201920729909.9U patent/CN210154365U/en active Active
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