CN1205912A - Automatic water level controller for vortical boiler fume purifier - Google Patents

Abstract

The device with two stages of precipitation consists of water supply tank, no-return valve, U water seal, anticorrosive foamed ball cock, elevating drainage plug, overflow pipe, glass water gage, relief pipe, butterfly valve, etc. By means of complete automatic control technology, it ensures that the boiler fume purifier operates reliably and endurably with high efficiency of eliminating smoke, dedusting, eliminating sulphur and nitride.

Description

Spiral vortex type boiler fume purifier water level autocontrol technique device

Clarifier water level autocontrol technique device relates to a kind ofly guarantees that boiler normally moves, and efficiently purifies flue dust, harmful substance, a whole set of fully automatic technique device of water supply stable and reliable for performance.

The water level water supply installation generally is provided with ball-cock assembly, the cursory straight-through connection feed pipe of copper, supplies with a certain amount of running water of wet type desulfurizing clarifier or alkali lye and purifies flue dust and the harmful substance SO that discharges in the boiler ₂, NO _x, some polycyclic aromatic hydrocarbons (PAH) compounds 3.4--BaP carcinogens of containing in the black smoke, thereby reach smoke elimination, dedusting, removal sulfur dioxide, the multiple clean-up effect of denitrifying oxide, although all kinds of wet cleaners all are provided with water-supply structure, grasp the various serious problems that during promoting the use of, occur by practice for many years, as: 1, in the emission purification device during mortar when water level decline, the normal height of operation that can not keep water level, causing shakes sends out the discharging that exceeds standard of property flue dust; 2, because entering clarifier, the slow air-introduced machine suction of water level decline moisturizing exogenous wind causes the boiler operation under positive pressure after the ash discharge; 3, since moisturizing slowly, the water of mending clarifier taken away a large amount of drops by air-introduced machine and enters air-introduced machine and paste into impeller and cause air-introduced machine dynamic balancing imbalance, motor burnout phenomenon to occur; 4, because the cursory use less than of sulfuric acid corrosion copper was damaged frequent replacing in two months; A large amount of scavenging solutions was drained and is caused energy waste when 5, the shutdown of boiler air-introduced machine quit work.Owing to above problem occurs, cause the disastrous effect that seriously can not imagine, boiler often is forced to out of service, cause very large economy loss, waste energy to enterprise's production and heating, its clean-up effect is neither very desirable, be difficult to keep long-term normal operation, energy savings reaches reliable and stable high efficiency technical index request, i.e. the discharge standard in environmental protection GB13271-91 atmosphere pollution one class area.

The purpose of the present invention's research is, propose a kind of new automatic water level automatic control technology device, guaranteed the long-term normal operation of boiler fume purifier, stable and reliable for performance, the multi-functional a whole set of measure structural shape of energy savings, to reach even more ideal smoke elimination, dedusting, desulfurization, denitrogenation clean-up effect.

Clarifier water level autocontrol technique device generally has supply tank, ball-cock assembly, cursory, the water supply tube connector of copper, the relevant parts of mud pit are formed, and the essence of the present invention's research is to adopt two-stage precipitation mud pit, first order mud pit [2], supply tank [4], be provided with check-valves [6] in the water tank, and equipped U type water seal water inlet pipe [7], inspection socket [8] established, the resistant to elevated temperatures foam floating ball device of acid corrosion-resistant [5] is housed, butterfly valve [13] in the water tank; Second level precipitation mud hopper [3], water supply tube connector [9], glass water gauge [11], airduct discharged air [12] is not discharged at two-stage precipitation mud hopper top, and ash discharge butterfly valve [14] is realized.For guaranteeing to be provided with the solid drain cock overflow pipe [10] of lift screw thread in certain height of water level water tank [4], to guarantee that boiler normally moves.

The running of this structure is at first the butterfly valve [14] of second level mud hopper to cut out, ball valve water supply [5] inflow supply tank [4] floating by foam.By check-valves [6], U type water seal [7] enters first order mud pit [2] again; The desulfurizing agent of second level mud hopper [3], water supply communicating pipe [9] by supply tank [4] bottom is supplied with, whenever operation ash discharge in 4 hours is no less than secondary, earlier the butterfly valve [13] of first order mud pit bottom cuts out during ash discharge, open the butterfly valve [14] of mud hopper bottom, the second level then, close butterfly valve [14] immediately after having arranged mortar, after sight glass water level meter [11] demonstration is full of water, again first order mud pit bottom butterfly valve [13] is opened, a large amount of big particle dusts is deposited in the mud hopper of the second level, to keep the desulfurizing agent cleaning concentration in the first order mud pit, guarantee reliable and stable better purification efficiency and technical indicator: lingemann blackness can reach below 1 grade to 0 grade; Efficiency of dust collection reaches more than 98%, and smoke dust discharge concentration reaches every mark cubic meter below 100 milligrams; Outstanding especially is to remove purging sulfur dioxide efficient to reach more than 90% SO ₂Concentration of emission drops to every mark cubic meter below 1200 milligrams, deviates from purification of nitrogen oxides efficient and reaches more than 80%.These parameters all reach or are significantly less than national environmental protection regulation GB13271-91 atmosphere pollution one class area discharge standard.

Description of drawings: [1] spiral vortex type boiler fume purifier; [2] first order purifies mud pit; [3] second level purifies mud hopper; [4] supply tank; [5] foam ball float, valve; [6] check-valves; [7] U type water seal feed pipe; [8] water seal observation and inspection mouth; [9] second level glar funnel communicating pipe; [10] the solid drain cock overflow pipe of lift screw thread; [11] glass water gauge; [12] the Dg20 tube drainage air that leaks informaton; [13] first order purifies mud pit bottom ash discharge butterfly valve; [14] second level purifies mud hopper bottom ash discharge butterfly valve (electronic or manual).

Claims (4)

1. spiral vortex type boiler fume purifier water level autocontrol technique device, by two-step purification mud casing, supply tank, the foam ball-cock assembly, check-valves, U type water seal feed pipe, drain cock, overflow pipe, the pipe that leaks informaton, glass water gauge, parts such as ash discharge butterfly valve constitute.Feature of the present utility model is to adopt the two-step purification precipitation, first order mud pit [2], supply tank [4] is provided with check-valves [6] in the water tank, and equipped U type water seal water inlet pipe [7], observation and inspection mouth [8] is equipped with the resistant to elevated temperatures foam ball-cock assembly of acid corrosion-resistant [5] in the water tank, butterfly valve [13]; Second level precipitation mud hopper [3], water supply tube connector [9], glass water gauge [11], second level precipitation mud hopper top is provided with the bg20 tube drainage air [12] that leaks informaton, ash discharge butterfly valve [14] is embodied as guarantees certain height of water level, be provided with the solid drain cock of lift setting fastening, overflow pipe [10] in the water tank [4], to guarantee that boiler normally moves.

2. clarifier water level autocontrol technique device according to claim 1 is characterized in that adding check-valves [6] and dress U type water seal water inlet pipe [7] in supply tank [4].

3. clarifier water level autocontrol technique device according to claim 1 is characterized in that being equipped with in the supply tank [4] lift setting fastening drain cock, overflow pipe [10].

4. clarifier water level autocontrol technique device according to claim 1 is characterized in that setting up two-stage, and the second level purifies precipitation mud hopper [3], glass tube water level meter [11], the bg20 tube drainage air [12] that leaks informaton.

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