CN218166517U - Online switching system of dry-process desulfurization absorption tower high-pressure water gun convenient to overhaul and maintain - Google Patents

Abstract

The utility model discloses a dry desulfurization absorption tower high pressure squirt online switching system convenient to overhaul and maintain, the delivery pipe with high pressure squirt water spray controlling means is being connected and is being used high pressure squirt, expand the pipeline section in absorption tower venturi export and still setting up reserve high pressure squirt water spray controlling means, high pressure squirt is intake female pipe and the female pipe of return water and is setting up high pressure squirt branch pipe and return water branch pipe respectively, high pressure squirt branch pipe of intaking, return water branch pipe is connecting reserve high pressure squirt water spray controlling means's inlet tube and outlet pipe through intaking stop valve and return water stop valve respectively. The utility model discloses it is rational in infrastructure, when absorption tower high pressure squirt atomization component need be maintained because of atomization effect is poor or high pressure squirt trouble, can realize switching high pressure squirt on line, do not influence the safe operation of equipment, realize going on overhauing the function of maintaining main gun system and atomization component, improve desulfurization system's long period, safety, steady operation greatly, improve work efficiency.

Description

Online switching system of high-pressure water gun of dry desulfurization absorption tower convenient to overhaul and maintain

Technical Field

The utility model belongs to supplementary system of overhauing of high-pressure squirt of flue gas dry desulfurization absorption tower of thermal power factory, especially a dry desulfurization absorption tower high-pressure squirt on-line switched systems convenient to overhaul and maintain.

Background

Sulfur in fuel of a thermal power plant reacts with oxygen in air in the combustion process to generate sulfur oxides (SO 2 and SO 3), and the dry circulating fluidized bed flue gas desulfurization process is to remove harmful gases SO2 and SO3 in tail gas. The dry desulfurization system consists of an absorbent preparation and supply system, an absorption tower, a desulfurization ash circulation and discharge system, process water, a desulfurization dust remover, an electrical instrument control system and the like. The flue gas gets into the circulating fluidized bed body through accelerating of the venturi of absorption tower bottom, the material is in circulating fluidized bed, the gas-solid is double-phase because the effect of air current, produce violent turbulence and mix, the abundant contact, outlet pipe expanding section at the venturi is equipped with high-pressure squirt water jet equipment, the atomized water of spouting through atomization component is firstly humidification granule surface, secondly the messenger reduces the smoke temperature, make SO2 and CaOH 2's reaction turn into the ion type reaction that can accomplish in the twinkling of an eye, thereby reach desorption SO2 and SO 3's purpose.

The chemical reaction generated by the proportion of the flue gas in the absorption tower, the absorbing agent CaOH2 in the fluidized bed and the atomized water in the dry flue gas desulfurization of the thermal power plant is the core of the dry flue gas desulfurization technology, and important equipment bearing the burden is a high-pressure water gun and an atomization assembly. High-pressure squirt atomizing component is because of producing with high-speed, highly compressed rivers and erodees, factor such as wearing and tearing, has certain life, is 3 months from the atomizing component life cycle of Germany import, has arrived life atomizing component atomization effect and can't satisfy desulfurization system's safety and stability operation, desulfurization efficiency reduces, can also cause the absorption tower inner wall caking when serious, causes flue gas air current unstability to lead to the fluidized bed to collapse, desulfurization system is forced to withdraw from the operation, serious consequences such as flue gas emission exceeds standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry process desulfurization absorption tower high pressure squirt online switching system convenient to overhaul and maintain, its is rational in infrastructure, when absorption tower high pressure squirt atomization component need be maintained because of atomization effect is poor or high pressure squirt trouble, can realize switching high pressure squirt on line, do not influence the safe operation of equipment, realize overhauing the function of maintaining main gun system and atomization component, improve desulfurization system's long period, safety, steady operation greatly, improve work efficiency.

The purpose of the utility model is realized like this: the utility model provides a dry desulfurization absorption tower high pressure squirt online switching system convenient to overhaul and maintain, including the water under high pressure supply, the high pressure squirt that return water system connects out is female pipe of intaking and the female pipe of return water, the high pressure squirt is intake female pipe and the female union coupling of return water absorption tower venturi export is expanding the high pressure squirt water spray controlling means of being in use that the pipeline section set up, the delivery pipe with high pressure squirt water spray controlling means is being connected and is being in use the high pressure squirt, it still sets up reserve high pressure squirt water spray controlling means still to expand the pipeline section in absorption tower venturi export, high pressure squirt is intake female pipe and the female pipe of return water and is setting up high pressure squirt branch pipe and return water branch pipe respectively, high pressure squirt intake branch pipe, return water branch pipe is connecting reserve high pressure water spray controlling means's inlet tube and outlet pipe through intaking stop valve and return water stop valve respectively.

The utility model discloses an on original high-pressure squirt pipe-line system's basis, the design increases one set of reserve high-pressure squirt system, when high-pressure squirt or atomization component break down or need maintenance dimension condition such as regular subassembly, need not to beat the report application to higher level again and withdraw from desulfurization system's processing, but through switching main rifle and reserve rifle system own on line and advancing, the online seamless switching function of activestandby rifle is realized to the return water valve, desulfurization system's safe operation is not influenced, can realize the function of overhauing and maintaining main rifle system and atomization component, desulfurization system's long period has been improved greatly, safety, the steady operation.

The utility model discloses at reserve high-pressure squirt locating hole of absorption tower venturi export expander section installation and positioning flange to advance at original high-pressure squirt, on the female pipe of return water, draw the reserve high-pressure squirt water spray control device of a branch connection absorption tower respectively, and advance respectively at reserve high-pressure squirt, install reserve rifle on the return water branch pipe and advance, reserve rifle return water stop valve, and with high-pressure rubber tube with reserve high-pressure squirt with reserve advance, return water pipe be connected can.

When the main gun breaks down or the atomization component is poor in effect and needs to be replaced, only two desulfurization operators are needed, and the function of online seamless switching between the main gun and the standby gun can be achieved through cooperative operation, so that the normal stable operation of a desulfurization system is not affected completely.

The specific switching operation is as follows: and connecting the spare gun system such as the spare gun, the high-pressure rubber tube and the like by a maintainer, and inserting the spare gun system into the absorption tower. The first running person opens reserve rifle stop valve that intakes earlier, opens reserve rifle return water stop valve again, merges reserve high-pressure squirt system into main gun system, and the inspection does not have unusual back, and the second running person closes main gun system stop valve that intakes earlier, closes main gun system return water stop valve again, finishes main gun system from switching in the system, can pull down main gun and atomization component and handle or change new subassembly to the trouble afterwards. And putting the repaired high-pressure water gun beside for standby. The incorporation of the main gun system, and the online seamless switching operation of the standby gun system are the same as described above.

Has the advantages that:

the utility model discloses an operation fundamentally has solved the current situation that influences crisis desulfurization system steady operation when high-pressure squirt and atomization component trouble to and saved and applied for approval link to the upper environmental protection office, improved work efficiency, ensured desulfurization system's safe operation.

The utility model discloses it is rational in infrastructure, when absorption tower high pressure squirt atomization component need be maintained because of atomization effect is poor or high pressure squirt trouble, realized switching high pressure squirt on line, do not influence the safe operation of equipment, realized overhauing the function of maintaining main gun system and atomization component, improved desulfurization system's long period, safety, steady operation greatly, improved work efficiency.

Drawings

The present invention will be further described with reference to the accompanying drawings, and fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The utility model provides a dry desulfurization absorption tower high pressure squirt online switching system convenient to overhaul and maintain, as shown in figure 1, supply including the water under high pressure, the high pressure squirt that return water system 1 connects out is female 3 and the female 4 pipe of return water of intaking, high pressure squirt is female 3 and the female 4 pipe of return water is being connected 2 venturi exits of absorption tower and is expanding the high pressure squirt water spray controlling means 5 of being used that the pipeline set up, the delivery pipe with high pressure squirt water spray controlling means 5 is being connected and is being used the high pressure squirt, it still sets up reserve high pressure squirt water spray controlling means 6 to expand the pipeline at 2 venturi exits of absorption tower, high pressure squirt is intake female 3 and the female 4 pipe of return water and is being set up high pressure squirt intake branch pipe 7 and return water branch pipe 8 respectively, high pressure squirt intake branch pipe 7, return water branch pipe 8 is connecting reserve high pressure squirt water spray controlling means 6's inlet tube and outlet pipe through water spray stop valve 9 and return water stop valve 10 respectively. The water supply pipe of the standby high-pressure water gun water spraying control device 6 is connected with a high-pressure rubber pipe through a pipe joint, and the other end of the high-pressure rubber pipe is connected with a high-pressure water gun.

Claims (2)

1. The utility model provides a dry process desulfurization absorption tower high pressure squirt on-line switching system convenient to overhaul and maintain, includes that the water under high pressure supplies, the high pressure squirt that backwater system (1) connects out is female pipe (3) and the female pipe (4) of backwater of intaking, and the high pressure squirt is intaking and is female pipe (3) and the female pipe (4) of backwater are being connected absorption tower (2) venturi export and are being used high pressure squirt water spray controlling means (5) of expanding the setting of pipeline section, is using high pressure squirt water spray controlling means (5)'s delivery pipe connection, characterized by: the venturi outlet expansion pipe section of the absorption tower (2) is also provided with a standby high-pressure water gun water spraying control device (6), a high-pressure water gun water inlet main pipe (3) and a water return main pipe (4) are respectively provided with a high-pressure water gun water inlet branch pipe (7) and a water return branch pipe (8), and the high-pressure water gun water inlet branch pipe (7) and the water return branch pipe (8) are respectively connected with a water inlet pipe and a water outlet pipe of the standby high-pressure water gun water spraying control device (6) through a water inlet stop valve (9) and a water return stop valve (10).

2. The on-line switching system of the high-pressure water gun of the dry desulfurization absorption tower convenient for overhaul and maintenance as claimed in claim 1, which is characterized in that: the water supply pipe of the standby high-pressure water gun water spraying control device (6) is connected with a high-pressure rubber pipe through a pipe joint, and the other end of the high-pressure rubber pipe is connected with a high-pressure water gun.

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