The central air-conditioning filter and pollutant discharging device
Technical field
The present invention relates to a kind of water treatment facilities, especially relate to a kind of central air-conditioning filter and pollutant discharging device.
Background technology
Along with continuing to bring out of hotel, high-grade office building, center air-condition circle water is handled problems and is seemed urgent day by day.Some building is because the property management personnel lacks experience to the maintenance of central air-conditioner circulating water system, and central air-conditioning uses after several years and tends to occur incrustation scale, has a strong impact on normal cold and heat supply; What is more, the mashed accident of wearing of circulating line occurs, has to change pipeline, caused enormous economic loss.Some building administrative staff have also recognized the importance of central air-conditioning water treatment in recent years, and have taked corresponding water treatment measure.Owing to contain a large amount of metal ions in the water, i.e. calcium ion, magnesium ion, manganese ion etc., and contain a large amount of carbon roots, as carbonate, sulfate radical etc., these materials form calcite type works, promptly usually said incrustation scale easily in process of flowing.The formation of incrustation scale causes the obstruction of heat exchanger caliber easily, causes the air-conditioning system refrigerating efficiency to descend.In order to reach same refrigerating efficiency, must consume the more energy.Currently used method for treating water often needs the cold heat medium water on the whole pipeline is changed, and not only elapsed time is long, troublesome poeration, and cause the significant wastage of water resource.
Certainly also have and adopt additive method to go to address this problem, patent as a kind of " cooling water recirculation system rust cleaning antisludging equipment " by name, the patent No. is 200420029233.6, it comprises the housing overcoat, inwall, metallic spacer layer, water inlet, delivery port, insulation board, the water reactive tank, bracing frame and graphite, said housing overcoat two ends are respectively equipped with water inlet and delivery port, between housing overcoat and inwall, clamped metallic spacer layer, the bracing frame of insulating materials is installed between inwall, zinc bar is housed between bracing frame, be filled with graphite between zinc bar, be positioned between water inlet and bracing frame insulation board is installed, the water hole is arranged on the insulation board, be positioned at the water reactive tank is installed between delivery port and bracing frame.After the water flowing; anode is a zinc; negative electrode is a carbon; form electric field; because ionization, make metal ion such as calcium, magnesium and zinc be combined into floccule when water flows through, this material no longer adheres to into incrustation scale with pipeline inner wall; but flow to pipeline outlet sedimentation with water, and zinc ion adheres to the special diaphragm of formation one deck at the metal tubes inwall.But this patent structure complexity, the cost height, and can not thoroughly take out stains, can not fundamentally address the above problem.
Summary of the invention
The present invention solves existing in prior technology the problems referred to above, and a kind of simple in structure, easy to operate, central air-conditioning filter and pollutant discharging device that filth-discharging effect is good is provided.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: this central air-conditioning filter and pollutant discharging device is arranged on the central air-conditioning pipeline, it is characterized in that, it comprises the body of a threeway, three tube portions of described threeway body Wei not filter leading portion, filter back segment and linkage section, filter leading portion and filter back segment join with the central air-conditioning pipeline respectively, with the linkage section adjacent filtering bodies is housed on the filter back segment, the outer end of linkage section is connected to surge tank, has outlet on the surge tank.
In above-mentioned central air-conditioning filter and pollutant discharging device, described surge tank comprises an inlet and a lateral dimension greater than the cushion chamber that enters the mouth, and inlet joins with the outer end of linkage section.
In being provided with the central air-conditioning pipeline of this central air-conditioning filter and pollutant discharging device, the cold and hot medium that circulates in the central air-conditioning pipeline is flowed through successively and is filtered leading portion, filtering bodies, filter back segment.Dirt in the cold and hot medium and contaminant filter can be gone out by filtering bodies.Because filtered impurity is stranded in the adjacent of filter back segment and linkage section can't be by the filter back segment, therefore, impurity and dirt are in linkage section is settled down to surge tank.
Because the cushion chamber size of surge tank is bigger, so dirt and impurity can be settled down in the surge tank slowly, and dirt and the impurity that can avoid simultaneously entering in the surge tank are refunded in the central air-conditioning pipeline.
At last,, outlet is opened, it can be discharged when the dirt in the surge tank and impurity accumulate to when a certain amount of.
In above-mentioned central air-conditioning filter and pollutant discharging device, be equipped with convex body in described filter leading portion and the filter back segment, the convex body at filter leading portion place is close to the linkage section place, and the convex body at filter back segment place is in the body inboard away from linkage section.
In above-mentioned central air-conditioning filter and pollutant discharging device, described filtering bodies is the netted filtering tube, and the cartridge filter lower end is loaded in the linkage section, and take respectively on two above-mentioned convex bodys the both sides of its upper end.In such structure body that is loaded on this blowdown apparatus that filtering bodies is firm.
In above-mentioned central air-conditioning filter and pollutant discharging device, the angle between described linkage section and the filter back segment is less than 90 degree.
The convex body that cold and hot medium is filtered leading portion and filter back segment place during by this blowdown apparatus successively stops, thereby changes direction, flows along the direction of linkage section.Because the angle between linkage section and the filter back segment is less than 90 degree, like this, cold and hot medium just flows along the inwall that is loaded on the cartridge filter in the linkage section.By cartridge filter impurity in the cold and hot medium and dirt are filtered out, filtered cold and hot medium is discharged by the filter back segment at last, makes that cold and hot medium continues to circulate in the central air-conditioning pipeline.
In above-mentioned central air-conditioning filter and pollutant discharging device, described filter leading portion and filter back segment link together by ring flange and central air-conditioning pipeline.Screw is screwed onto on the ring flange of filter leading portion and central air-conditioning pipeline, is connected firmly on the central air-conditioning pipeline thereby will filter leading portion.Certainly, the filter back segment also links together firmly by this method and central air-conditioning pipeline.That is to say, this blowdown apparatus is connected on the central air-conditioning pipeline by the ring flange connection.
In above-mentioned central air-conditioning filter and pollutant discharging device, described surge tank inlet links together by ring flange with linkage section.Screw is screwed onto on the ring flange of surge tank and linkage section, thereby surge tank is connected on the linkage section firmly.
In above-mentioned central air-conditioning filter and pollutant discharging device, the exit on the described surge tank is provided with valve.Valve can open and close, and that is to say, valve is being closed during central air-conditioning work.When needing the impurity in the discharging surge tank valve open is got final product.
Compared with prior art, central air-conditioning filter and pollutant discharging device of the present invention can fall dirt in the central air-conditioning pipeline and contaminant filter by filtering bodies, and last, dirt and impurity are settled down in the surge tank; Can it be discharged from the outlet of surge tank when time more than impurity gathers necessarily.As can be seen, can filter out impurity in the cold and hot medium, effectively avoid forming in the pipeline incrustation scale by this device.
Simultaneously, the valve open with the surge tank exit in the time of impurity need being discharged gets final product, and is therefore easy to operate.
In addition, when cold and hot medium was filtered, cold and hot medium was stopped by convex body to make cold and hot medium flow along the sidewall of filtering bodies.As can be seen, such structure makes cold and hot medium can directly not impact on filtering bodies, has also avoided impurity or dirt to stick on the filtering bodies simultaneously.Therefore, use stablize higher, filth-discharging effect good.
Description of drawings
Fig. 1 is that this central air-conditioning filter and pollutant discharging device is loaded on the structural representation on the central air-conditioning pipeline.
Fig. 2 is the structural representation of this central air-conditioning filter and pollutant discharging device middle tube body part.
Among the figure, 1, the central air-conditioning pipeline; 11, ring flange; 2, body; 21, filter leading portion; 21a, ring flange; 22, filter back segment; 22a, ring flange; 23, linkage section; 23a, ring flange; 3, surge tank; 31, ring flange; 32, inlet; 33, cushion chamber; 34, outlet; 4, valve; 5, filtering bodies; 6, convex body; 61, retaining edge.
The specific embodiment
As depicted in figs. 1 and 2, this central air-conditioning filter and pollutant discharging device is loaded on the central air-conditioning pipeline 1.It comprises the body 2 of filtering bodies 5, surge tank 3 and a threeway, three tube portions of body 2 Wei not filter leading portion 21, filter back segment 22, linkage section 23.
As shown in Figure 2, filter leading portion 21 and filter back segment 22 interconnect by ring flange 21a, 22a on it and the ring flange 11 on the central air-conditioning pipeline 1 respectively.Linkage section 23 interconnects by ring flange 23a on it and the ring flange 31 on the surge tank 3, and linkage section 23 is spent less than 90 with the angle of filter back segment 22.On filter back segment 22, a filtering bodies 5 is housed with linkage section 23 adjacents.In the present embodiment, filtering bodies 5 is netted cartridge filter.
Be equipped with convex body 6 in filter leading portion 21 and the filter back segment 22, the convex body 6 at filter leading portion 21 places is close to linkage section 23 places, and the convex body 6 at filter back segment 22 places is in body 2 inboards away from linkage section 23.The lower end of filtering bodies 5 is loaded in the linkage section 23, and take respectively on two convex bodys 6 both sides of its upper end, in the present embodiment, for filtering bodies 5 firm fixing, is provided with retaining along 61 on convex body 6, filtering bodies 5 is pushed down in case anti-avulsion falls along 61 by retaining.
Surge tank 3 comprises inlet 32, outlet 34 and inner cushion chamber 33, and the lateral dimension of cushion chamber 33 is refunded to central air-conditioning pipeline 1 by impurity or dirt that such structure can be avoided entering in the cushion chamber 33 greater than inlet 32 sizes.In the present embodiment, the ring flange 31 on the surge tank 3 is arranged on inlet 32 places.Outlet 34 places of surge tank 3 are provided with a valve 4.
As shown in Figure 1, during central air-conditioning work, cold and hot medium circulates in central air-conditioning pipeline 1.When cold and hot medium was flowed through this blowdown apparatus, cold and hot medium was stopped by two convex bodys 6, simultaneously, because linkage section 23 is spent less than 90 with the angle of filter back segment 22.Therefore, the inwall of the filtering bodies 5 of the cold and hot medium after stopped by convex body 6 in the linkage section 23 flows, filter by 5 pairs of cold and hot mediums of filtering bodies, the purer cold and hot medium that filters out continues to circulate in the central air-conditioning pipeline by filter back segment 22.And impurity that filters out and dirt are entered in the surge tank 3 at last by the inlet 32 that linkage section 23 places enter into surge tank 3.
Certainly, after central air-conditioning work a period of time, surge tank 3 inner accumulated a certain amount of impurity and dirt, open valve 4 it can be discharged from exporting 34 this moment.The central air-conditioning of this device on the new clothes, valve were opened and are once carried out blowdown in 4 one days.After treating work a period of time, opened in two days and once to carry out blowdown.
Usually, this device all is equipped with in each loop of central air-conditioning, as condensing agent loop and water loop etc.In addition, add some complexes in water, descale effect is better.Complex is that a plurality of chelate groups are arranged, and can form multistage, multi-faceted chemical coordination to calcium, magnesium ion, thereby destroys the molecular structure of calcium, magnesium incrustation scale by it.