CN112097541A - Anti-freezing device for pipe bundle of air cooler - Google Patents
Anti-freezing device for pipe bundle of air cooler Download PDFInfo
- Publication number
- CN112097541A CN112097541A CN202010900109.6A CN202010900109A CN112097541A CN 112097541 A CN112097541 A CN 112097541A CN 202010900109 A CN202010900109 A CN 202010900109A CN 112097541 A CN112097541 A CN 112097541A
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- tube bundle
- flexible wind
- air cooler
- rod
- top end
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/005—Auxiliary systems, arrangements, or devices for protection against freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B11/00—Controlling arrangements with features specially adapted for condensers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an air cooler tube bundle anti-freezing device, wherein an air cooler tube bundle comprises a tube bundle frame and a tube bundle body, the tube bundle frame comprises two side beams which are oppositely arranged, and the air cooler tube bundle anti-freezing device comprises a flexible wind screen, a driving mechanism and a guide rod; guide rods parallel to the side beams are fixedly arranged on the two side beams respectively, and the bottom ends of the guide rods are positioned at the bottom end of the tube bundle body; the two sides of the flexible wind-shielding curtain are provided with a plurality of through holes which are arranged along the side track direction of the flexible wind-shielding curtain, the flexible wind-shielding curtain is sleeved on the two guide rods through the through holes, and the bottom end of the flexible wind-shielding curtain is fixed at the bottom ends of the guide rods; the driving mechanism is adapted to drive the tip of the flexible wind screen along the guide rod to extend or fold the flexible wind screen. The anti-freezing device for the tube bundle of the air cooler can reduce the ventilation quantity of the part, which is easy to freeze, of the tube bundle on the basis of not changing the existing structure of the tube bundle too much, has low cost and does not influence the running power of equipment when not in use.
Description
Technical Field
The invention relates to the technical field of air coolers, in particular to an anti-freezing device for a tube bundle of an air cooler.
Background
The air cooler has a natural contradiction, namely the air cooler is afraid of freezing in winter and is afraid of not enough in performance in summer. Excess performance design often presents severe freeze protection challenges in the winter. This problem is particularly acute in areas with large temperature differences between summer and winter. The existing antifreezing technology is divided into three conditions: 1. the air cooler is not easy to freeze by increasing the steam flow in the air cooler; 2. the cold source is reduced by reducing the air inlet amount of the air cooler; 3. heating devices, such as heating coils, are added. In case 1, the steam of the user is consumed additionally, which is high in cost. In case 2, a general classification is made into a blind structure and a frame curtain structure; the shutter structure is that the shutter is installed above the tube bundle, and the ventilation volume of the whole tube bundle is adjusted by adjusting the opening and closing angle of the shutter, and the shutter structure has the following disadvantages: the cost is high, certain requirements are imposed on the structure of the tube bundle, the whole tube bundle is opened and closed together, key parts which are easy to freeze cannot be protected in a key mode, the static pressure of a fan is increased, and the operation power consumption of an air cooler is increased; the structure of the wind screen of the framework is that the wind screen is arranged at the bottom of the steel structure of the air cooler, and the structure has the following defects: the air inlet quantity can not be adjusted according to the special condition of each tube bundle. The 3 rd case not only has high manufacturing cost and complex structure, but also consumes steam of users, and increases the running power of the fan.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an air cooler tube bundle antifreezing device which can reduce the ventilation quantity of the part, which is easy to freeze, of a tube bundle on the basis of not changing the prior structure of the tube bundle too much, has low cost and does not influence the running power of equipment when not used.
The purpose of the invention is realized by adopting the following technical scheme:
the air cooler tube bundle anti-freezing device comprises an air cooler tube bundle and a tube bundle body, wherein the tube bundle frame comprises two side beams which are oppositely arranged; the air cooler pipe bundle anti-freezing device comprises a flexible wind-shield curtain, a driving mechanism and a guide rod; the two side beams are respectively and fixedly provided with the guide rods parallel to the side beams, and the bottom ends of the guide rods are positioned at the bottom ends of the tube bundle body; the two sides of the flexible wind-shielding curtain are provided with a plurality of through holes which are arranged along the side track direction of the flexible wind-shielding curtain, the flexible wind-shielding curtain is sleeved on the two guide rods through the through holes, and the bottom end of the flexible wind-shielding curtain is fixed at the bottom ends of the guide rods; the driving mechanism is suitable for driving the top end of the flexible wind screen to move along the guide rod so as to extend or fold the flexible wind screen.
Further, the guide rod comprises a support rod and a straight rod; the support rod is suitable for supporting the straight rod so that a space is reserved between the straight rod and the side beam.
Further, a circular tube base is arranged on the side beam; the supporting rod is suitable for being sleeved in the round pipe base, and a pin shaft is arranged in the pin hole.
Furthermore, the top end of the flexible wind-shield curtain is fixedly connected with a sliding rod along the width direction of the flexible wind-shield curtain, the sliding rod is slidably connected in a space reserved between the straight rod and the side beam, and two ends of the sliding rod are respectively provided with a limiting bulge.
Further, the driving mechanism comprises a winch and a traction rope; the winding machine is arranged on the tube bundle frame, a first end of the traction rope is connected with the winding machine, a second end of the traction rope is connected with the top end of the flexible wind-shield curtain, the winding machine is suitable for driving the top end of the flexible wind-shield curtain to move upwards along the guide rod when in work, and the top end of the flexible wind-shield curtain is suitable for moving downwards along the guide rod under the action of self weight when the winding machine is not in work.
Further, the traction ropes are steel ropes.
Furthermore, the tube bundle frame also comprises a plurality of cross beams arranged between the two side beams; at least one beam is positioned above the position of the top end of the flexible wind-shield curtain after the flexible wind-shield curtain is completely stretched, and a guide ring is arranged on the beam; at least one side beam is provided with a through hole along the height direction of the side beam, and the surface of the side beam, which is different from the surface where the flexible wind-shield curtain is arranged, is provided with the winch; the first end of the traction rope is connected with the winch, and the second end of the traction rope is suitable for penetrating through the through hole and the guide ring and then is connected with the top end of the flexible wind screen.
Further, the second end of the pulling rope is suitable for being connected with the middle of the top end of the flexible wind screen.
Further, a conduit is arranged in the through hole, and a shaft sleeve is arranged in the conduit.
Further, the air cooler tube bundle anti-freezing device also comprises a temperature sensor and a controller; the temperature sensor is used for detecting the temperature of different positions of the tube bundle body, and the temperature sensor and the driving mechanism are respectively in signal connection with the controller.
Compared with the prior art, the invention has the beneficial effects that: 1. the air cooler tube bundle anti-freezing device has small change on the structure of the existing equipment; 2. when the air cooler tube bundle anti-freezing device is not used, the static pressure of a fan of an air cooler cannot be influenced, the running power of the air cooler cannot be increased, and the running cost is low; 3. the anti-freezing device for the tube bundle of the air cooler only shields the part, which is most easily frozen, of the tube bundle body, and does not influence the heat exchange performance of the part, which is not easily frozen, of the tube bundle body.
Drawings
FIG. 1 is a schematic view of a first perspective of the air cooler tube bundle freeze protection apparatus of the present invention;
FIG. 2 is a schematic view of a second perspective of the air cooler tube bundle freeze protection apparatus of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
FIG. 4 is an enlarged view at B of FIG. 1;
FIG. 5 is an enlarged view at C of FIG. 2;
fig. 6 is an enlarged view at D in fig. 2.
In the figure: 1. a tube bundle frame; 11. a side beam; 111. a circular tube base; 112. a conduit; 113. a shaft sleeve; 12. a cross beam; 121. a guide ring; 2. a flexible wind screen; 21. a slide bar; 211. a protrusion; 3. a guide bar; 31. a support bar; 32. a straight rod; 33. a pin shaft; 41. a winch; 42. and (6) pulling the rope.
Detailed Description
To facilitate an understanding of the invention, the invention 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
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 invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It should be understood that, in the actual use process of the air cooler, the condensed water ratio at the bottom end of the tube bundle body is high, and the temperature is low, so that the frozen tubes are more likely to appear at the bottom end of the tube bundle body, i.e. the surface temperature of the tube bundle body is gradually increased from the bottom end to the top end.
As shown in fig. 1-6, the antifreeze apparatus for air cooler tube bundle provided by the embodiment of the invention is shown. Referring to fig. 1-2, the air cooler tube bundle includes a tube bundle frame 1 and a tube bundle body (not shown), and the tube bundle frame 1 includes two side beams 11 disposed oppositely. The air cooler tube bundle anti-freezing device comprises a flexible wind-shield curtain 2, a driving mechanism and a guide rod 3. The two side beams 11 are respectively and fixedly provided with guide rods 3 parallel to the side beams 11, and the bottom ends of the guide rods 3 are positioned at the bottom ends of the tube bundle body. The two sides of the flexible wind-shield curtain 2 are provided with a plurality of through holes arranged along the side track direction, and the flexible wind-shield curtain 2 is sleeved on the two guide rods 3 through the through holes, namely the flexible wind-shield curtain 2 is actually horizontally propped by the two guide rods 3 and covers one surface of the tube bundle frame 1. The bottom end of the flexible wind screen 2 is fixed at the bottom end of the guide rod 3; the driving mechanism is adapted to drive the tip of the flexible wind screen 2 along the guide bar 3 to extend or fold the flexible wind screen 2. Specifically, the flexible wind screen 2 may be a rain cloth or a wind canvas, but it should be noted that the present invention is not limited to the specific material used for the flexible wind screen 2 as long as it has flexibility and can block wind. In addition, when the environment temperature is proper, the air cooler tube bundle anti-freezing device can be not used, so that the flexible wind-shielding curtain 2 is in a completely folded state, the static pressure of a fan of the air cooler can not be influenced, and the running power of the air cooler can not be increased. The air cooler tube bundle anti-freezing device only adds the guide rod 3, the flexible wind screen 2 and the driving mechanism on the original equipment (air cooler) to realize the anti-freezing function, and the structure of the original equipment is slightly changed.
As a preferred embodiment, with reference to fig. 2 and 6, the guide bar 3 comprises a support bar 31 and a straight bar 32; the support rod 31 is adapted to support the straight rod 32 such that the straight rod 32 is spaced apart from the side member 11. The straight bar 32 is spaced from the side members 11 by a distance suitable for movement of the sides of the flexible wind screen 2 therein. Specifically, the side beam 11 is provided with a circular tube base 111; the round tube base 111 and the support rod 31 are both provided with pin holes, the support rod 31 is suitable for being sleeved in the round tube base 111, and pin shafts 33 are arranged in the pin holes. Namely, the guide rod 3 and the side beam 11 are fixedly connected through the pin shaft 33, and the guide rod 3 and the side beam 11 can be conveniently mounted and dismounted through the arrangement mode, so that the flexible wind screen 2 is convenient to mount and replace on site.
Preferably, referring to fig. 2, the top end of the flexible wind screen 2 is fixedly connected with a sliding rod 21 along the width direction thereof, the sliding rod 21 is slidably connected in a space left between the straight rod 32 and the side beam 11, and two ends of the sliding rod 21 are respectively provided with a limit protrusion 211. The sliding rod 21 is arranged, so that the flexible wind screen 2 can be better unfolded, the sliding of the flexible wind screen can be facilitated in the space between the straight rod 32 and the side beam 11, the sliding rod 21 can be limited by the protrusion 211, the sliding rod 21 is prevented from falling off from the space between the straight rod 32 and the side beam 11, and the reliability of the air cooler tube bundle anti-freezing device is ensured.
Preferably, with reference to fig. 1-2 and 4-5, the drive mechanism includes a hoist 41 and a traction rope 42; the winch 41 is arranged on the tube bundle frame 1, the first end of the traction rope 42 is connected with the winch 41, the second end of the traction rope 42 is connected with the top end of the flexible wind-shield curtain 2, the winch 41 is suitable for driving the top end of the flexible wind-shield curtain 2 to move upwards along the guide rod 3 when in work, and the top end of the flexible wind-shield curtain 2 is suitable for moving downwards along the guide rod 3 under the action of self weight when the winch 41 is not in work. Specifically, the pull cords 42 are steel cords. In actual use, the self weight of the flexible wind screen 2 and the sliding rod 21 can reach 25 kg, and after the steel cable is loosened, the flexible wind screen 2 moves downwards along the guide pipe 112 under the action of the self weight until the flexible wind screen is folded at the bottom end of the guide rod 3.
Preferably, with reference to fig. 1-3 and 5, the tube bundle frame 1 further comprises a plurality of cross beams 12 disposed between the two side beams 11; at least one beam 12 is positioned above the position of the top end of the flexible wind screen 2 after the flexible wind screen 2 is completely extended, and the beam 12 is provided with a guide ring 121; at least one side beam 11 is provided with a through hole along the height direction, and a winch 41 is arranged on the side of the side beam 11 different from the side where the flexible wind screen 2 is arranged; a first end of the pulling rope 42 is connected to the winding machine 41, and a second end of the pulling rope 42 is adapted to pass through the through hole and the guide ring 121 and then be connected to the top end of the flexible wind screen 2. Through the arrangement mode, the winch 41 is arranged on the surface different from the surface where the wind screen is arranged, so that the installation of the winch 41 can be more convenient, and the blocking of the flexible wind screen 2 can be avoided.
Preferably, the second end of the pull cord is adapted to be connected to the middle of the top end of the flexible wind screen 2. Through the arrangement mode, the flexible wind-shield curtain 2 can be more balanced when the traction rope pulls the flexible wind-shield curtain 2.
Preferably, a conduit 112 is disposed within the through-hole, and a bushing 113 is disposed within the conduit 112. The friction between the traction rope and the side beam 11 can be reduced by arranging the shaft sleeve 113, and the service life of the traction rope can be prolonged.
Preferably, the air cooler tube bundle anti-freezing device further comprises a temperature sensor and a controller; the temperature sensor is used for detecting the temperature of different positions of the tube bundle body, and the temperature sensor and the driving mechanism are respectively in signal connection with the controller. Specifically, the controller can be a PLC (programmable logic controller), when the ambient temperature is lower than 0 degree and the temperature sensor detects that the position of the tube bundle body is lower than 5 ℃, the PLC can send a lifting signal to the driving mechanism, and the driving mechanism drives the top end of the flexible wind-blocking curtain 2 to move along the guide rod 3 until the temperature of the tube bundle body at the position of the flexible wind-blocking curtain is more than or equal to 5 ℃; and when the temperature sensor detects that the temperature of the shielded part is higher than 40 ℃, the PLC can send a descending signal to the driving mechanism, and the driving mechanism drives the top end of the flexible wind screen 2 to descend along the guide rod 3. By the mode, the automatic control of the air cooler tube bundle anti-freezing device is realized, and the air cooler tube bundle anti-freezing device is very convenient.
In the above arrangement, the bottom end of the guide rod 3 is located at the bottom end of the tube bundle body, the bottom end of the flexible wind-blocking curtain 2 is fixed at the bottom end of the guide rod 3, and the driving mechanism is suitable for driving the top end of the flexible wind-blocking curtain 2 to move along the guide rod 3, so that the flexible wind-blocking curtain 2 is extended or folded; therefore, in the actual use process, when the ambient temperature is too low, in order to avoid freezing the tubes of the tube bundle body, the flexible wind-shielding curtain 2 can be upwards extended along the guide rod 3 until the top end of the flexible wind-shielding curtain 2 is positioned at the position where the tubes of the tube bundle body can not be frozen. The position of the top end of the flexible wind screen 2 can be adjusted according to the change of the environmental temperature, so that only the part of the tube bundle body which is most easily frozen can be shielded, and the heat exchange performance of the part of the tube bundle body which is not easily frozen can not be influenced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The air cooler tube bundle anti-freezing device comprises an air cooler tube bundle and a tube bundle body, wherein the tube bundle frame comprises two side beams which are oppositely arranged; the device is characterized in that the air cooler tube bundle anti-freezing device comprises a flexible wind-shield curtain, a driving mechanism and a guide rod; the two side beams are respectively and fixedly provided with the guide rods parallel to the side beams, and the bottom ends of the guide rods are positioned at the bottom ends of the tube bundle body; the two sides of the flexible wind-shielding curtain are provided with a plurality of through holes which are arranged along the side track direction of the flexible wind-shielding curtain, the flexible wind-shielding curtain is sleeved on the two guide rods through the through holes, and the bottom end of the flexible wind-shielding curtain is fixed at the bottom ends of the guide rods; the driving mechanism is suitable for driving the top end of the flexible wind screen to move along the guide rod so as to extend or fold the flexible wind screen.
2. The air cooler tube bundle freeze protection device of claim 1, wherein: the guide rod comprises a support rod and a straight rod; the support rod is suitable for supporting the straight rod so that a space is reserved between the straight rod and the side beam.
3. The air cooler tube bundle freeze protection device of claim 2, wherein: a circular tube base is arranged on the side beam; the supporting rod is suitable for being sleeved in the round pipe base, and a pin shaft is arranged in the pin hole.
4. The air cooler tube bundle freeze protection device of claim 3, wherein: the top end of the flexible wind-shield curtain is fixedly connected with a sliding rod along the width direction of the flexible wind-shield curtain, the sliding rod is connected in a sliding manner in a space reserved between the straight rod and the side beam, and the two ends of the sliding rod are respectively provided with a limiting bulge.
5. The air cooler tube bundle freeze protection device of claim 1, wherein: the driving mechanism comprises a winch and a traction rope; the winding machine is arranged on the tube bundle frame, a first end of the traction rope is connected with the winding machine, a second end of the traction rope is connected with the top end of the flexible wind-shield curtain, the winding machine is suitable for driving the top end of the flexible wind-shield curtain to move upwards along the guide rod when in work, and the top end of the flexible wind-shield curtain is suitable for moving downwards along the guide rod under the action of self weight when the winding machine is not in work.
6. The air cooler tube bundle freeze protection device of claim 5, wherein: the traction rope is a steel rope.
7. The air cooler tube bundle freeze protection device of claim 5, wherein: the tube bundle frame also comprises a plurality of cross beams arranged between the two side beams; at least one beam is positioned above the position of the top end of the flexible wind-shield curtain after the flexible wind-shield curtain is completely stretched, and a guide ring is arranged on the beam; at least one side beam is provided with a through hole along the height direction of the side beam, and the surface of the side beam, which is different from the surface where the flexible wind-shield curtain is arranged, is provided with the winch; the first end of the traction rope is connected with the winch, and the second end of the traction rope is suitable for penetrating through the through hole and the guide ring and then is connected with the top end of the flexible wind screen.
8. The air cooler tube bundle freeze protection device of claim 7, wherein: and the second end of the traction rope is suitable for being connected with the middle part of the top end of the flexible wind screen.
9. The air cooler tube bundle freeze protection device of claim 7, wherein: a conduit is arranged in the through hole, and a shaft sleeve is arranged in the conduit.
10. The air cooler tube bundle freeze protection device of claim 1, wherein: the air cooler pipe bundle anti-freezing device also comprises a temperature sensor and a controller; the temperature sensor is used for detecting the temperature of different positions of the tube bundle body, and the temperature sensor and the driving mechanism are respectively in signal connection with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900109.6A CN112097541A (en) | 2020-08-31 | 2020-08-31 | Anti-freezing device for pipe bundle of air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900109.6A CN112097541A (en) | 2020-08-31 | 2020-08-31 | Anti-freezing device for pipe bundle of air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112097541A true CN112097541A (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010900109.6A Pending CN112097541A (en) | 2020-08-31 | 2020-08-31 | Anti-freezing device for pipe bundle of air cooler |
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| CN (1) | CN112097541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670087A (en) * | 2021-09-06 | 2021-11-19 | 神华国能宁夏鸳鸯湖发电有限公司 | Partial pressure anti-freezing device and method for indirect air cooling tower |
-
2020
- 2020-08-31 CN CN202010900109.6A patent/CN112097541A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670087A (en) * | 2021-09-06 | 2021-11-19 | 神华国能宁夏鸳鸯湖发电有限公司 | Partial pressure anti-freezing device and method for indirect air cooling tower |
| CN113670087B (en) * | 2021-09-06 | 2024-04-26 | 神华国能宁夏鸳鸯湖发电有限公司 | Partial pressure anti-freezing device and method for indirect air cooling tower |
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