CN110500911B - Centrifugal rotational flow hollow nozzle device suitable for countercurrent cooling tower of air conditioning system - Google Patents
Centrifugal rotational flow hollow nozzle device suitable for countercurrent cooling tower of air conditioning system Download PDFInfo
- Publication number
- CN110500911B CN110500911B CN201910912123.5A CN201910912123A CN110500911B CN 110500911 B CN110500911 B CN 110500911B CN 201910912123 A CN201910912123 A CN 201910912123A CN 110500911 B CN110500911 B CN 110500911B
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- water distribution
- conical
- water
- area
- hollow nozzle
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- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000009826 distribution Methods 0.000 claims abstract description 65
- 239000000498 cooling water Substances 0.000 claims abstract description 36
- 239000012535 impurity Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005265 energy consumption 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
- 238000005057 refrigeration Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/02—Direct-contact trickle coolers, e.g. cooling towers with counter-current only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Nozzles (AREA)
Abstract
The invention provides a centrifugal rotational flow hollow nozzle device suitable for a counter-flow cooling tower of an air conditioning system, which comprises a centrifugal rotational flow hollow nozzle, a conical water distribution plate, a V-shaped connecting rod, a water distribution plate height adjusting hole and a water distribution hole. When cooling water flows out through the centrifugal cyclone hollow nozzle, an umbrella-shaped spraying effect is formed, and the cooling water coverage area is circular. At this time, the cooling water collides with the water distribution plate below the nozzle, and the water distribution plate is used for secondary spraying flow distribution, so that the spraying coverage area is wider, the liquid drop splashing effect is good, and the spraying characteristic of a blank area with obvious spraying flow is avoided. The distance between the water distribution plate and the nozzle outlet can be adjusted through the adjusting holes on the connecting rod, so that the spraying characteristic and the liquid drop splashing characteristic are adjusted to a certain extent. The device has the advantages of simple structure, convenient assembly and disassembly, easy cleaning and maintenance and great help to the improvement of the efficiency of the countercurrent cooling tower.
Description
Technical Field
The invention belongs to the technical field of manufacturing of special equipment of an air conditioning system, is suitable for water distribution of a counter-flow cooling tower, and relates to a centrifugal rotational flow hollow nozzle device suitable for the counter-flow cooling tower of the air conditioning system. The centrifugal cyclone hollow nozzle device can improve inherent defects in the spraying characteristics of the centrifugal cyclone hollow nozzle, generate larger spraying coverage area, stronger splashing degree of cooling water and less spraying coverage blank areas, thereby improving the performance of the countercurrent cooling tower.
Background
The cooling tower is a device which uses water as a circulating coolant, absorbs heat from the system and discharges the heat to the atmosphere so as to reduce the water temperature; the principle is that the evaporation heat-dissipation device which utilizes the principles of heat dissipation by evaporation, convection heat transfer, radiation heat transfer and the like to dissipate the waste heat generated in industry or refrigeration air conditioner to reduce the water temperature by utilizing the heat exchange generated by the flowing contact of water and air, so as to ensure the normal operation of a circulation system. The counter-current tower is one type of cooling tower, and in terms of operation, water flows vertically in the tower, and the direction of the air flow for heat exchange with the water is opposite to that of the water flow. In the process, the flow process of the water flow from top to bottom plays a decisive role in the heat exchange effect of the cooling water in the tower. The starting point of the water flow is a nozzle positioned at the upper part of the countercurrent tower.
The spray nozzle is a common spraying device in the countercurrent tower, and can change stranded water into small water drops through the spray nozzle to be evenly sprayed on the filler, so that the heat exchange area between cooling water and countercurrent air is increased as much as possible, and the aim of increasing the convective heat exchange coefficient is fulfilled. The spray condition of the spray nozzle to the cooling water directly affects the efficiency, energy consumption and investment of the cooling tower. The spray characteristics are critical to the overall performance of the counterflow cooling tower.
Disclosure of Invention
In view of this, the present invention proposes a centrifugal swirling hollow nozzle device for spraying cooling water in a counter-flow cooling tower. The invention overcomes the inherent defects of the centrifugal rotational flow hollow nozzle, so that the cooling water through the nozzle device has wider and more uniform spreading area and fewer spraying blank areas.
The technical scheme of the invention is as follows:
a centrifugal rotational flow hollow nozzle device suitable for a counter-flow cooling tower of an air conditioning system comprises a centrifugal rotational flow hollow nozzle 1, a V-shaped connecting rod 2, a conical water distribution plate 3, a water distribution hole 4 and a water distribution plate height adjusting hole 5;
the centrifugal cyclone hollow nozzle 1 is connected with the conical water distribution disc 3 through 3V-shaped connecting rods 2 with 60-degree included angles; the height adjusting holes 5 of the water distributing disc are arranged at different height positions of the connecting position of the V-shaped connecting rod 2, so that the fastening connection between the centrifugal rotational flow hollow nozzle 1 and the conical water distributing disc 3 is realized, the height of the water distributing disc is adjustable, and the shaking and loosening of the conical water distributing disc 3 are prevented;
the included angle between the conical vertical face of the conical water distribution plate 3 and the horizontal direction is determined to be 15 degrees; the conical water distribution disc 3 is divided into three areas, namely a central circular area, a horizontal disc area and a conical elevation area; the central circular area is positioned at the center of the conical water distribution plate 3 and is a circular hole which is divided by a crisscross so as to increase the strength; the horizontal disc area is positioned at the periphery of the central circular area, and three rows of circular water distribution holes are distributed in staggered manner in the horizontal disc area; the conical elevation area is positioned at the periphery of the horizontal disc area, and four rows of rectangular water distribution holes are distributed in staggered manner; when the cooling water collides with the 15-degree conical elevation of the conical water distribution disc 3, part of the cooling water splashes outwards, part of the cooling water flows down along the conical elevation and is distributed to flow down from the water distribution Kong Zhuci to cover the position below the nozzle; when the cooling water contains impurities with larger size, the impurities cannot pass through the water distribution holes, so that the impurities can be entrained by the cooling water and flow down from the middle circular large holes of the horizontal disc surface, and the water distribution holes cannot be blocked;
after being sprayed out from the centrifugal rotational flow hollow nozzle 1, the cooling water is distributed in an umbrella-shaped structure, and the expansion angle of the cooling water is basically unchanged after the pressure reaches a certain value; and after the cooling water collides with the conical water distribution disc 3, the movement direction of the cooling water can be changed, so that the spraying coverage area of the cooling water is affected. In this way, when a part of the cooling water collides with the tapered vertical surface in a non-vertical manner, the cooling water splashes outside the nozzle device, and droplets of different sizes are formed. The rest of cooling water is blocked by the vertical surface and flows down along the vertical surface, and flows out of the water distribution holes 4 of the conical vertical surface and the horizontal disk surface of the conical water distribution disk 3 in sequence, so that the area right below the nozzle is filled.
The height adjusting hole of the water distribution plate has two functions: firstly, the stable connection between the nozzle and the water distribution plate can be ensured through screw fastening, and deflection and shaking of the water distribution plate can not occur in the using process of the nozzle device; secondly, the height of the water distribution plate can be adjusted according to the actual condition of the cooling tower, so that the spraying characteristics of the nozzle device are partially changed, and the adjustment requirement of the performance of the cooling tower is met.
Compared with the prior art, the invention has the beneficial effects that:
(1) In order to achieve a better working medium dispersing effect, the traditional centrifugal cyclone hollow nozzle has larger pressure loss of the working medium in the nozzle. The invention optimizes the internal structure and the inlet size of the nozzle, so that the pressure drop of the working medium is greatly reduced, thereby reducing the power consumption of the water supply pump of the cooling tower and saving the operation cost of the cooling tower.
(2) The design of the connecting rod of the water distribution plate enables the distance between the water distribution plate and the nozzle outlet to be adjustable, and the applicability of the nozzle device to the operation working condition of the cooling tower is enhanced.
(3) The spray coverage of the nozzle device is wide, the cooling water dispersing effect is obvious, the heat exchange area between the cooling water and the countercurrent air is greatly increased, the spray blank area on the surface of the cooling tower filler is reduced, and the overall performance of the cooling tower is improved.
Drawings
Fig. 1 is a front view of a centrifugal cyclone hollow nozzle apparatus suitable for use in a counter-flow cooling tower of an air conditioning system in accordance with the present invention.
Fig. 2 is a top view of a centrifugal cyclone hollow nozzle apparatus suitable for use in a counter-flow cooling tower of an air conditioning system in accordance with the present invention.
In the figure: 1, a centrifugal rotational flow hollow nozzle; 2, a conical water distribution plate; a type 3V connecting rod; 4, a height adjusting hole of the water distribution plate; and 5, water distribution holes.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-2, a centrifugal cyclone hollow nozzle device suitable for a counter-flow cooling tower of an air conditioning system comprises a centrifugal cyclone hollow nozzle 1, a V-shaped connecting rod 2, a conical water distribution plate 3, a water distribution hole 4 and a water distribution plate height adjusting hole 5;
the centrifugal cyclone hollow nozzle 1 is connected with the conical water distribution disc 3 through 3V-shaped connecting rods 2 with 60-degree included angles; the height adjusting holes 5 of the water distributing disc are arranged at different height positions of the connecting position of the V-shaped connecting rod 2, so that the centrifugal rotational flow hollow nozzle 1 and the conical water distributing disc 3 are tightly connected and have adjustable height, and the conical water distributing disc 3 is prevented from shaking and loosening;
the included angle between the conical vertical face of the conical water distribution plate 3 and the horizontal direction is determined to be 15 degrees; the conical water distribution disc 3 is divided into three areas, namely a central circular area, a horizontal disc area and a conical elevation area; the central circular area is positioned at the center of the conical water distribution disc 3 and is a circular hole with D=61 mm, and the circular holes are divided by crisscross to increase the strength; the horizontal disc area is positioned at the periphery of the central circular area, and three rows of 108 circular water distribution holes are distributed in staggered manner in the horizontal disc area; the conical elevation area is positioned at the periphery of the horizontal disc area, and four rows of 145 rectangular water distribution holes are distributed in staggered mode.
The cooling water is boosted by the water supply pump, enters the centrifugal cyclone hollow nozzle 1 from the inlet thereof, generates cyclone motion, and is sprayed from the outlet of the centrifugal cyclone hollow nozzle 1 to form umbrella-shaped curtain-shaped flow pattern distribution. When the curtain-shaped cooling water collides with the 15-degree conical vertical surface of the conical water distribution disc 3, part of the cooling water is further scattered due to the collision effect to form droplets with different sizes, the droplets are splashed outwards, the spraying coverage range of the nozzle device is enlarged, the convection heat exchange coefficient between the cooling water and the countercurrent air is increased, and the heat exchange is enhanced, so that the overall performance of the cooling tower is improved; after colliding with the conical vertical face of the conical water distribution plate 3, the other part of cooling water flows downwards along the surface of the conical vertical face, and flows to the filling material sequentially through the conical vertical face and the water distribution holes of the horizontal part, so that a spraying blank area right below the nozzle device is filled. In addition, when the cooling water entrains the impurities with a large volume, the impurities are entrained by the cooling water and flow down from the large through hole of the central horizontal portion of the conical water distribution plate 3, and the water distribution holes on the conical water distribution plate 3 are not blocked, so that the spray characteristics of the spray nozzle are affected.
Finally, it is pointed out that the above embodiments are only intended to illustrate the technical solution of the invention and that other modifications and equivalents will be suggested to those skilled in the art, such as variations and equivalents to the elements of the invention, which are to be modified according to the teachings of the invention, to suit particular situations or materials, without departing from the spirit and scope of the technical solution of the invention, which is intended to be covered by the scope of the claims.
Claims (5)
1. The centrifugal type rotational flow hollow nozzle device is suitable for a counter-flow cooling tower of an air conditioning system and is characterized by comprising a centrifugal type rotational flow hollow nozzle (1), a V-shaped connecting rod (2), a conical water distribution disc (3), a water distribution hole (4) and a water distribution disc height adjusting hole (5);
the centrifugal cyclone hollow nozzle (1) is connected with the conical water distribution disc (3) through 3V-shaped connecting rods (2) with 60-degree included angles; the height adjusting holes (5) of the water distributing disc are arranged at different height positions of the connecting position of the V-shaped connecting rod (2), so that the fastening connection between the centrifugal rotational flow hollow nozzle (1) and the conical water distributing disc (3) and the height adjustment of the water distributing disc are realized, and the shaking and loosening of the conical water distributing disc (3) are prevented;
the included angle between the conical vertical face of the conical water distribution plate (3) and the horizontal direction is determined to be 15 degrees; the conical water distribution plate (3) is divided into three areas, namely a central circular area, a horizontal disc area and a conical elevation area; the central circular area is positioned at the center of the conical water distribution plate (3) and is a circular hole, and the circular hole is divided by crisscross to increase the strength; the horizontal disc area is positioned at the periphery of the central circular area, and three rows of circular water distribution holes are distributed in staggered manner in the horizontal disc area; the conical elevation area is positioned at the periphery of the horizontal disc area, and four rows of rectangular water distribution holes are distributed in staggered manner; when the cooling water collides with the 15-degree conical elevation of the conical water distribution disc (3), part of the cooling water splashes outwards, and part of the cooling water flows down along the conical elevation and is distributed to flow down from the water distribution Kong Zhuci to cover the position below the nozzle; when the cooling water contains impurities with larger size, the impurities cannot pass through the water distribution holes, so that the impurities can be entrained by the cooling water and flow down from the circular holes, and the water distribution holes cannot be blocked.
2. A centrifugal cyclone hollow nozzle device according to claim 1, wherein the central circular area is a circular hole of d=61 mm.
3. A centrifugal cyclone hollow nozzle device according to claim 1 or 2, wherein the horizontal disc area is arranged with three rows of 108 circular water distribution holes in total.
4. A centrifugal cyclone hollow nozzle device according to claim 1 or 2, wherein the conical elevation area is arranged with four rows of 145 rectangular water distribution holes in total.
5. A centrifugal cyclone hollow nozzle device according to claim 3, wherein the conical elevation area is staggered with four rows of 145 rectangular water distribution holes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019100843753 | 2019-01-29 | ||
| CN201910084375.3A CN109827461A (en) | 2019-01-29 | 2019-01-29 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110500911A CN110500911A (en) | 2019-11-26 |
| CN110500911B true CN110500911B (en) | 2024-03-22 |
Family
ID=66862772
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910084375.3A Pending CN109827461A (en) | 2019-01-29 | 2019-01-29 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
| CN201910515465.3A Withdrawn CN110118507A (en) | 2019-01-29 | 2019-06-14 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
| CN201921605888.6U Withdrawn - After Issue CN210533155U (en) | 2019-01-29 | 2019-09-25 | Centrifugal rotational flow hollow nozzle device suitable for counter-flow cooling tower of air conditioning system |
| CN201910912123.5A Active CN110500911B (en) | 2019-01-29 | 2019-09-25 | Centrifugal rotational flow hollow nozzle device suitable for countercurrent cooling tower of air conditioning system |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910084375.3A Pending CN109827461A (en) | 2019-01-29 | 2019-01-29 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
| CN201910515465.3A Withdrawn CN110118507A (en) | 2019-01-29 | 2019-06-14 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
| CN201921605888.6U Withdrawn - After Issue CN210533155U (en) | 2019-01-29 | 2019-09-25 | Centrifugal rotational flow hollow nozzle device suitable for counter-flow cooling tower of air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN109827461A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827461A (en) * | 2019-01-29 | 2019-05-31 | 大连斯频德环境设备有限公司 | A kind of centrifugal rotational flow nozzle device suitable for air-conditioning system counterflow cooling tower |
| CN110455114B (en) * | 2019-08-09 | 2024-03-22 | 大连斯频德环境设备有限公司 | Centrifugal rotational flow hollow rotatable nozzle device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2143759Y (en) * | 1993-03-11 | 1993-10-13 | 中国化学工程总公司化工冷却塔填料厂 | Height adjustable target spray head |
| JPH07234094A (en) * | 1994-02-25 | 1995-09-05 | Shinko Pantec Co Ltd | Water dispersion nozzle |
| CN201011486Y (en) * | 2007-01-04 | 2008-01-23 | 江苏海鸥冷却塔股份有限公司 | Three splashing type shower nozzle |
| KR20090001125U (en) * | 2007-07-27 | 2009-02-02 | 주식회사 상신 | Injection nozzle for cooling tower |
| CN203824362U (en) * | 2014-04-30 | 2014-09-10 | 秦皇岛达成科技有限公司 | Direct-flow type spraying device |
| CN204594308U (en) * | 2015-01-20 | 2015-08-26 | 大唐淮南洛河发电厂 | A kind of cooling tower spraying and splashing facility |
| DE202017102911U1 (en) * | 2017-05-15 | 2017-06-21 | Evertz Hydrotechnik Gmbh & Co. Kg | Device for irrigation of roadways |
| CN107372030A (en) * | 2016-04-27 | 2017-11-24 | 约翰·威廉·肯德尔 | A kind of irrigation rig and the irrigation method using the irrigation rig |
| CN109059606A (en) * | 2018-05-31 | 2018-12-21 | 嘉兴懿铄精密模具有限公司 | A kind of nozzle of stagewise cooling device |
| CN210533155U (en) * | 2019-01-29 | 2020-05-15 | 大连斯频德环境设备有限公司 | Centrifugal rotational flow hollow nozzle device suitable for counter-flow cooling tower of air conditioning system |
-
2019
- 2019-01-29 CN CN201910084375.3A patent/CN109827461A/en active Pending
- 2019-06-14 CN CN201910515465.3A patent/CN110118507A/en not_active Withdrawn
- 2019-09-25 CN CN201921605888.6U patent/CN210533155U/en not_active Withdrawn - After Issue
- 2019-09-25 CN CN201910912123.5A patent/CN110500911B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2143759Y (en) * | 1993-03-11 | 1993-10-13 | 中国化学工程总公司化工冷却塔填料厂 | Height adjustable target spray head |
| JPH07234094A (en) * | 1994-02-25 | 1995-09-05 | Shinko Pantec Co Ltd | Water dispersion nozzle |
| CN201011486Y (en) * | 2007-01-04 | 2008-01-23 | 江苏海鸥冷却塔股份有限公司 | Three splashing type shower nozzle |
| KR20090001125U (en) * | 2007-07-27 | 2009-02-02 | 주식회사 상신 | Injection nozzle for cooling tower |
| CN203824362U (en) * | 2014-04-30 | 2014-09-10 | 秦皇岛达成科技有限公司 | Direct-flow type spraying device |
| CN204594308U (en) * | 2015-01-20 | 2015-08-26 | 大唐淮南洛河发电厂 | A kind of cooling tower spraying and splashing facility |
| CN107372030A (en) * | 2016-04-27 | 2017-11-24 | 约翰·威廉·肯德尔 | A kind of irrigation rig and the irrigation method using the irrigation rig |
| DE202017102911U1 (en) * | 2017-05-15 | 2017-06-21 | Evertz Hydrotechnik Gmbh & Co. Kg | Device for irrigation of roadways |
| CN109059606A (en) * | 2018-05-31 | 2018-12-21 | 嘉兴懿铄精密模具有限公司 | A kind of nozzle of stagewise cooling device |
| CN210533155U (en) * | 2019-01-29 | 2020-05-15 | 大连斯频德环境设备有限公司 | Centrifugal rotational flow hollow nozzle device suitable for counter-flow cooling tower of air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210533155U (en) | 2020-05-15 |
| CN110118507A (en) | 2019-08-13 |
| CN110500911A (en) | 2019-11-26 |
| CN109827461A (en) | 2019-05-31 |
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