CN104307632A - Electrostatic liquid collecting device suitable for high-wind-speed high-liquid-content air flow - Google Patents
Electrostatic liquid collecting device suitable for high-wind-speed high-liquid-content air flow Download PDFInfo
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- CN104307632A CN104307632A CN201410628035.XA CN201410628035A CN104307632A CN 104307632 A CN104307632 A CN 104307632A CN 201410628035 A CN201410628035 A CN 201410628035A CN 104307632 A CN104307632 A CN 104307632A
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Abstract
The invention discloses an electrostatic liquid collecting device suitable for high-wind-speed high-liquid-content air flow. The electrostatic liquid collecting device comprises a plate-wire-net type electrode device, a power supply, a control module and a hot air purge device, wherein the plate-wire-net type electrode device comprises a V-shaped baffle plate array, a stainless steel wire electrode array and stainless steel net electrodes, which are arranged at intervals in sequence from bottom to top; the upper side plate surfaces of V-shaped baffle plates, stainless steel wire electrodes and the stainless steel net electrodes form a wire-plate type electrical field and a wire-net type electrical field in sequence, and liquid drops in the air flow are directly collected by electrical charges and directional motion of the liquid drops in a high-voltage direct-current electrical field; the direction of the wire-plate type electrical field is opposite to that of incoming flow, so that the speed of the liquid drops in the air flow direction can be effectively reduced and the collecting efficiency can be improved; the direction of the wire-net type electrical field is the same as that of the incoming flow, so that the liquid drops which are not collected by the wire-plate type electrical field under the high-wind-speed condition are further collected and the liquid collecting efficiency is improved without increment of wind resistance.
Description
Technical field
The invention belongs to refrigeration air conditioner heat pump technical field, relate to a kind of electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow and receive liquid device.
Background technology
The devices such as adverse current heat source tower/cooling tower, solution dehumidification packed tower, cooling tower without filling material, it is large that its air outlet has air velocity, the feature that liquid content is large, prior art generally adopts and arranges inertia water collector at air outlet, but under the operating mode of high wind speed containing large amount of liquid amount, inertia receives water limited efficacy, and liquid phenomenon of wafing is serious.A liquid rate 0.1% of wafing, flow is 100m
3/ h countercurrent tower, the water yield running loss in 10 hours is 1t.The liquid that wafts of heat source tower is larger compared to cooling tower harm, and not only contaminated environment, causes solution loss, also can reduce the operational efficiency of heat source tower because outlet air enthalpy reduces.And solution dehumidification is only limited to commercial Application in present stage, and a civilian major reason cannot be realized exports band liquid exactly, and the working medium such as LiBr, LiCl that solution dehumidification uses all there are corrosivity in various degree and smell.
Existing electrostatic is received liquid device and is relied on drop charged and displacement in the electric field to realize trapping, and direction of an electric field is vertical with airflow direction, and the time that drop stops in the electric field is longer, and larger to the possibility of pole plate at electric field force move under influence, efficiency is higher.And the electric field vertical with air motion direction cannot change the speed of drop along airflow direction, under the operating mode of high wind speed, the time compole that drop stops in the electric field is short, receives liquid efficiency and sharply declines.Under the operating mode that liquid content is large, the power that electrostatic receives liquid device increases, and also improves the requirement of power supply thereupon.
Therefore, how to solve the problem that liquid received by machinery, electrostatic receipts liquid cannot realize efficiently receiving liquid under high wind speed containing large amount of liquid amount operating mode, design a kind of new and effective receipts liquid device, become and reduce cooling tower loss, promote the key of the application of installation such as heat source tower, solution dehumidification.
Summary of the invention
technical problem:the object of this invention is to provide a kind of receipts liquid problem solving high wind speed containing large amount of liquid amount air-flow, simultaneously implementation efficiency is high, reliability is strong, the electrostatic of the high wind speed containing large amount of liquid amount that the is applicable to air-flow of size little (airflow direction) receives liquid device.
technical scheme:the electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow of the present invention receives liquid device, comprises plate-line-net formula electrode assembly, power supply and control module, hot air sweeping device.Plate-line-net formula electrode assembly comprises from bottom to up spaced V-type deflection plate array successively, stainless steel wire electrod-array, stainless (steel) wire electrode, described V-type deflection plate array is made up of V-type deflection plate arranged in parallel, every block V-type deflection plate is formed by upper plate and lower plate, the positive and negative both sides of lower limb of described lower plate are provided with one becomes 3 ° of angles liquidceiver with level, the front lower limb of described upper plate, plate face and upper edge are respectively arranged with a tongue, described stainless steel wire electrod-array is made up of stainless steel wire electrode arranged in parallel, described stainless steel wire electrode connects by suspending line in midair and supports, described suspention line to be fixed on tower body by insulator and to tighten, blast fence is provided with below described insulator, the air velocity transducer that described power supply and control module comprise DC high-voltage power supply, breaker, microampere meter, controller and be arranged on above stainless (steel) wire electrode, the negative pole of described DC high-voltage power supply is by breaker and stainless steel wire Electrode connection, plus earth, signal exports and feedback end is connected with controller, the signal feedback end of described air velocity transducer is connected with controller, the negative terminals of described microampere meter simultaneously with stainless steel wire electrode and stainless (steel) wire Electrode connection, positive terminals ground connection, signal feedback end is connected with controller, described hot air sweeping device comprises just to the insulator centrifugal blower arranged and the electrical heating wire being arranged on centrifugal fan air outlet.
In preferred version of the present invention, V-type deflection plate, stainless steel wire electrode, the alternate setting of stainless (steel) wire electrode, V-type deflection plate array lower limb is 20cm ~ 25cm to the height of stainless (steel) wire electrode, V-type deflection plate array upper face and stainless steel wire electrod-array form the line-board-like electric field arrangement contrary with airflow direction, and stainless steel wire electrod-array forms the line-net formula electric field arrangement consistent with airflow direction with stainless (steel) wire electrode.
In preferred version of the present invention, V-type deflection plate surface, through water wetted material spray treatment, makes the liquid that wafts be collected on plate form liquid film, prevents it from becoming drop-wise to fall, causes air-out two sub-band liquid.
In preferred version of the present invention, stainless (steel) wire electrode is arranged on stainless steel wire electrode, and the positive square mesh length of side is greater than 3cm, prevents drop from mesh, forming liquid film.Line-net formula electric field, when not increasing windage, effectively increases and receive liquid efficiency, and stainless (steel) wire electrode can available protecting stainless steel wire electrode.
In preferred version of the present invention, the working voltage of the Signal Regulation DC high-voltage power supply that controller feeds back according to air velocity transducer, guarantees that electrostatic receives liquid device efficient and energy-conservation.
In preferred version of the present invention, controller, under the electric current that microampere meter feeds back exceeds and arranges normal value 20% situation, opens hot air sweeping device, by the drop evaporation be condensed on insulator, prevents " creepage " phenomenon.Below insulator, blast fence is set, prevents drop to be splashed on insulator.
beneficial effect:the present invention compared with prior art, has the following advantages:
1, existing cooling tower (heat source tower etc.) all adopts inertia to receive liquid device, and in countercurrent tower, air velocity is large, and liquid content is high, and conventional inertia receives liquid device, and to receive liquid efficiency low, and cause countercurrent tower liquid rate of wafing to be greater than 0.1%, cycle fluid loss is serious.Existing electrostatic is received liquid device and is generally adopted line-tubular type or line-Shi, and its direction of an electric field is all vertical with airflow direction, although vapour lock is less, the drop under high flow rate in the electric field the time of staying extremely short, efficiency is low.This device utilizes inertia to receive liquid simultaneously and electrostatic receives liquid, and the direction of an electric field that plate-line-net formula electrode structure is formed is parallel with airflow direction, directly can change the speed of drop at airflow direction, and receiving liquid efficiency increases greatly.
2, V-type deflection plate array lower limb to the height of stainless (steel) wire electrode of this device is 20cm ~ 25cm, to receive liquid device size suitable with existing inertia, direct replacement can be realized, existing counter-flow cooling tower (adverse current heat source tower, solution dehumidification packed tower etc.) is transformed.
3, the V-type deflection plate surface of apparatus of the present invention is through water wetted material spray treatment, the drop of collection is made to form liquid film on plate surface, prevent it from becoming drop-wise to fall to causing air-out two sub-band liquid, and conventional electrostatic receive the electrode of liquid all without hydrophilic treated, easily causes two sub-band liquid.
4, the blast fence that arranges of apparatus of the present invention and blow device can ensure that system also can reliability service continuously under bad working environments, and the start and stop of blow device rely on feedback current realization, and the basis not increasing system degree of being responsible for achieves automatic control.
Accompanying drawing explanation
Fig. 1 is systematic schematic diagram of the present invention.
Fig. 2 is structure chart of the present invention.
Fig. 3 is the partial elevation view that the present invention installs in countercurrent tower.
Fig. 4 is the side view that the present invention installs in countercurrent tower.
Have in figure: V-type deflection plate 1, stainless steel wire electrode 2, stainless (steel) wire electrode 3, insulator 4, suspention line 5, blast fence 6, tower body 7, liquid distributor 8, axial flow blower 9, filler 10, air inlet 11, collecting tank 12, tongue 13, liquidceiver 14, high-voltage DC power supply 15, breaker 16, controller 17, centrifugal blower 18, electrical heating wire 19, microampere meter 20, air velocity transducer 21.
Detailed description of the invention
Below in conjunction with embodiment and Figure of description, technical scheme of the present invention is further described.
A kind of electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow of the present invention receives liquid device, and systematic schematic diagram as shown in Figure 1, comprises plate-line-net formula electrode assembly, power supply and control module, hot air sweeping device.As shown in Figure 2, plate-line-net formula electrode assembly comprises V-type deflection plate 1, stainless steel wire electrode 2, stainless (steel) wire electrode 3, insulator 4, suspention line 5, and the structure of V-type deflection plate 1 comprises again tongue 13, liquidceiver 14.As shown in Figure 1, power supply and control module comprise high-voltage DC power supply 15, breaker 16, controller 17, microampere meter 20; Hot air sweeping device comprises centrifugal blower 18, electrical heating wire 19, air velocity transducer 21.
Concrete method of attachment of the present invention is as follows.
As shown in Figure 2, V-type deflection plate 1 is arranged parallel to each other, the right and left of every block V-type deflection plate 1 lower limb is provided with one becomes 3 ° of angles liquidceiver 14 with level, and V-type deflection plate 1 is disposed with three tongues 13 from knuckle place to top edge, and V-type deflection plate 1 surface spraying has water wetted material.Stainless steel wire electrode 2, stainless (steel) wire electrode 3 is set gradually above V-type deflection plate 1.Suspention line 5, across all stainless steel wire electrodes 2, plays a part to support and connects stainless steel wire electrode 2.As shown in Figure 3,4, suspention line 5 and stainless steel wire electrode 2 to be fixed on tower body and to be tightened by stainless steel wire electrode 2 by insulator 4.Blast fence 6 is installed on below insulator 4.
As shown in Figure 1, DC high-voltage power supply 15 plus earth, connects stainless steel wire electrode 2 after negative pole series trip device 16.Connect with microampere meter 20 after V-type deflection plate 1 is in parallel with stainless (steel) wire electrode 3, microampere meter 20 ground connection.The feedback signal of air velocity transducer 21 and microampere meter 20 as the input signal of controller 17, in order to the start and stop of the voltage of DC high-voltage power supply 15 and centrifugal blower 18, electrical heating wire 19.
The installation of the present invention in countercurrent tower as shown in Figure 3,4, countercurrent tower is made up of tower body 7, liquid distributor 8, axial flow blower 9, filler 10, air inlet 11, collecting tank 12, and the present invention is arranged between liquid distributor 8 in adverse current heat source tower (counter-flow cooling tower, solution dehumidification packed tower etc.) and axial flow blower 9.When countercurrent tower runs, the runner that the V-type deflection plate 1 that be arranged in parallel formed is entered containing liquid air gas, by continuously changing airflow direction, the drop making diameter larger is by primary collection, and the tongue being positioned at V-type deflection plate 1 knuckle place effectively can strengthen inertia and receive liquid effect.The liquid collected forms moisture film on surface on the pole plate of hydrophilic treated, and rely on gravity to flow in liquidceiver 14, Liquid transfer to tower body 7 side, is flowed into the collecting tank 12 of countercurrent tower by the liquidceiver 14 of 3 ° of gradients.Water-wetted surface can make the drop of collection form moisture film, prevents it from becoming drop-wise to fall, and is taken away form secondary and to waft liquid by air-flow.After the runner formed by V-type deflection plate 1 containing liquid air-flow, enter line-board-like electric field that V-type deflection plate 1 upper face and stainless steel wire electrode 2 are formed, now air-flow is also containing a certain amount of drop.Demarcate the wind speed of countercurrent tower and outlet liquid measure of wafing in advance before installing, controller, according to the running current of countercurrent tower axial flow blower 9, calculates waft liquid measure and the required voltage of corresponding operating mode.High-voltage DC power supply 15 starts the negative voltage applying a 15kv ~ 25kv to stainless steel wire electrode 2, stainless steel wire electrode 2 and V-type deflection plate 1(ground connection) form the electric field contrary with airflow direction, stainless steel wire electrode 2 and stainless (steel) wire electrode 3(ground connection between upper face) between form the electric field consistent with airflow direction.Stainless steel wire electrode 2 diameter is between 1.2mm ~ 2mm, radius of curvature is large, surrounding electric field intensity is high, free electron in this region can be accelerated to very high speed under the effect of highfield, when them and gas molecule collides time, its energy is enough to make gas molecule discharge outer-shell electron and ionize as cation and free electron.The new free electron ionized out and the speed be accelerated to again needed for ionization by collision, can cause the ionization by collision of gas molecule by Jin mono-Walk again.This process repeatedly repeats, so that produces a large amount of electronics and cation in space near corona discharge electrode, forms electron avalanche process.Electronics in the process to earthing pole movement, by the stronger molecule of negative polarity (as O
2, H
2o etc.) absorption formation anion.And anion is again attached on drop and makes it charged, and then realize displacement in the electric field.Electric field force perpendicular to airflow direction directly makes liquid drop speed reduce gradually, and before arrival stainless steel wire electrode 2, speed is reduced to zero and starts reverse accelerated motion, finally discharges at the upper face of V-type deflection plate 1 and is captured.The ion wind formed during electron jet is contrary with incoming flow liquid drop speed direction, can also play the effect strengthening trapping.Minority speed is comparatively large, and the drop that particle diameter is less is being reduced to zero not yet through stainless steel wire electrode 2 hourly velocity, then enter the line consistent with airflow direction-net formula electric field, is accelerated in the electric field and strikes on stainless (steel) wire electrode 3 to realize trapping.The positive square mesh length of side of stainless (steel) wire electrode 3 is greater than 3cm, prevents drop from mesh, forming liquid film.Line-net formula electric field, when not increasing windage, effectively increases and receive liquid efficiency, and stainless (steel) wire electrode 3 can available protecting stainless steel wire electrode 2.
The blast fence 6 arranged below insulator 4 can prevent drop from sputtering pollution insulator 4 effectively.When considering that adverse current heat source tower runs in the winter time, insulator 4 and extraneous contact, temperature is lower, has droplets agglomerate on insulator 4, makes insulator 4 lose insulation effect, causes " creepage " phenomenon.In order to realize the reliability service of apparatus of the present invention, be provided with hot air sweeping device.When insulator 4 there being a large amount of droplets agglomerate, decreasing insulating, plant running electric current significantly raises, controller 17 is when detecting that current information that microampere meter 20 feeds back is higher than setting value, start centrifugal blower 18, air-supply, after electrical heating wire 19 is heated to uniform temperature, purges insulator 4, the drop be condensed on insulator 4 is evaporated rapidly.After the electric current that microampere meter 20 feeds back is less than safety value, stop purging.Blow device, only under bad working environments, just brings into operation when having in a large amount of droplets agglomerate to insulator 4, without the need to starting under nominal situation.
Above-described embodiment is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention; some improvement and equivalent replacement can also be made; these improve the claims in the present invention and are equal to the technical scheme after replacing, and all fall into protection scope of the present invention.
Claims (4)
1. the electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow receives liquid device, it is characterized in that, this device comprises plate-line-net formula electrode assembly, power supply and control module, hot air sweeping device, described plate-line-net formula electrode assembly comprises from bottom to up spaced V-type deflection plate array successively, stainless steel wire electrod-array, stainless (steel) wire electrode (3), described V-type deflection plate array is made up of V-type deflection plate (1) arranged in parallel, every block V-type deflection plate (1) is formed by upper plate and lower plate, the positive and negative both sides of lower limb of described lower plate are provided with one becomes 3 ° of angles liquidceiver (14) with level, the front lower limb of described upper plate, plate face and upper edge are respectively arranged with a tongue (13), described stainless steel wire electrod-array is made up of stainless steel wire electrode (2) arranged in parallel, described stainless steel wire electrode (2) is connected by suspention line (5) and is supported, described suspention line (5) to be fixed on tower body by insulator (4) and to tighten, described insulator (4) below is provided with blast fence (6),
Described power supply and control module comprise DC high-voltage power supply (15), breaker (16), microampere meter (20), controller (17) and the air velocity transducer (21) be arranged on above stainless (steel) wire electrode (3), the negative pole of described DC high-voltage power supply (15) is connected with stainless steel wire electrode (2) by breaker (16), plus earth, signal exports and feedback end is connected with controller (17), the signal feedback end of described air velocity transducer (21) is connected with controller (17), the negative terminals of described microampere meter (20) are connected with stainless steel wire electrode (2) and stainless (steel) wire electrode (3) simultaneously, positive terminals ground connection, signal feedback end is connected with controller (17),
Described hot air sweeping device comprises the centrifugal blower (18) just arranged insulator (4) and the electrical heating wire (19) being arranged on described centrifugal blower (18) air outlet.
2. the electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow according to claim 1 receives liquid device, it is characterized in that, described V-type deflection plate array lower limb is 20cm ~ 25cm to the height of stainless (steel) wire electrode (3), V-type deflection plate array upper face and stainless steel wire electrod-array form the line-board-like electric field arrangement contrary with airflow direction, and stainless steel wire electrod-array forms the line-net formula electric field arrangement consistent with airflow direction with stainless (steel) wire electrode (3).
3. the electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow according to claim 1 and 2 receives liquid device, and it is characterized in that, the surface of described V-type deflection plate (1) is through water wetted material spray treatment.
4. the electrostatic being applicable to high wind speed containing large amount of liquid amount air-flow according to claim 1 receives liquid device, it is characterized in that, described controller (17), under the electric current that microampere meter (20) feeds back exceeds and arranges normal value 20% situation, opens hot air sweeping device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628035.XA CN104307632B (en) | 2014-11-10 | 2014-11-10 | The static that is applicable to high wind speed containing large amount of liquid amount air-flow is received liquid device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628035.XA CN104307632B (en) | 2014-11-10 | 2014-11-10 | The static that is applicable to high wind speed containing large amount of liquid amount air-flow is received liquid device |
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| CN104307632A true CN104307632A (en) | 2015-01-28 |
| CN104307632B CN104307632B (en) | 2016-05-18 |
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| GB556939A (en) * | 1941-05-13 | 1943-10-28 | Westinghouse Electric Int Co | Improved method of and apparatus for removing dust or other foreign particles from gas or air |
| US6126722A (en) * | 1998-07-28 | 2000-10-03 | The United States Of America As Represented By The Secretary Of Agriculture | Electrostatic reduction system for reducing airborne dust and microorganisms |
| CN2463031Y (en) * | 2000-11-02 | 2001-12-05 | 上虞市金科环境设备有限公司 | Combined cooking fume purifier |
| CN2555935Y (en) * | 2002-07-04 | 2003-06-18 | 朱叙江 | Composite oil fume purifier |
| CN1449858A (en) * | 2002-04-08 | 2003-10-22 | 薛家华 | Composite cooking fume purifier |
| CN101310823A (en) * | 2008-02-04 | 2008-11-26 | 冯长青 | Liquid flow water wash static combined type gas purification method and device thereof |
| CN102218249A (en) * | 2010-04-13 | 2011-10-19 | 哈尔滨盛迪电力设备有限公司 | Electrostatic extrusion-type oil mist purifying machine |
| FR2990142A1 (en) * | 2012-05-04 | 2013-11-08 | Peugeot Citroen Automobiles Sa | Device for separating liquid drops of water from air stream in air-conditioning unit of car, has metal plates placed in air intake, where plates act as electrodes for generating electric field within space traversed by air flow |
| CN203425917U (en) * | 2013-08-12 | 2014-02-12 | 泰山石膏股份有限公司 | Airflow guide plate for electric dust collector |
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2014
- 2014-11-10 CN CN201410628035.XA patent/CN104307632B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB556939A (en) * | 1941-05-13 | 1943-10-28 | Westinghouse Electric Int Co | Improved method of and apparatus for removing dust or other foreign particles from gas or air |
| US6126722A (en) * | 1998-07-28 | 2000-10-03 | The United States Of America As Represented By The Secretary Of Agriculture | Electrostatic reduction system for reducing airborne dust and microorganisms |
| CN2463031Y (en) * | 2000-11-02 | 2001-12-05 | 上虞市金科环境设备有限公司 | Combined cooking fume purifier |
| CN1449858A (en) * | 2002-04-08 | 2003-10-22 | 薛家华 | Composite cooking fume purifier |
| CN2555935Y (en) * | 2002-07-04 | 2003-06-18 | 朱叙江 | Composite oil fume purifier |
| CN101310823A (en) * | 2008-02-04 | 2008-11-26 | 冯长青 | Liquid flow water wash static combined type gas purification method and device thereof |
| CN102218249A (en) * | 2010-04-13 | 2011-10-19 | 哈尔滨盛迪电力设备有限公司 | Electrostatic extrusion-type oil mist purifying machine |
| FR2990142A1 (en) * | 2012-05-04 | 2013-11-08 | Peugeot Citroen Automobiles Sa | Device for separating liquid drops of water from air stream in air-conditioning unit of car, has metal plates placed in air intake, where plates act as electrodes for generating electric field within space traversed by air flow |
| CN203425917U (en) * | 2013-08-12 | 2014-02-12 | 泰山石膏股份有限公司 | Airflow guide plate for electric dust collector |
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| CN104307632B (en) | 2016-05-18 |
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