CN208154513U - A kind of gas fired-boiler of hot tail gas processing function - Google Patents

Abstract

The utility model proposes a kind of gas fired-boilers of hot tail gas processing function.The utility model carries out primary filter to bulky grain dust by setting initial filtrator, and removable connection type can facilitate the cleaning or replacement of its Inner filter net；After-filter can filter dust further progress, the entrance indoor high pressure draught of epicoele is depressured using metal-rubber simultaneously, current stabilization, the setting of fine filter then can precisely filter gas, physics and chemisorption can be carried out using active carbon, multiple fine filters are set, and each fine filter is connected using parallel way, so that but also with higher filter efficiency while essence filtering, since the decompression of metal-rubber, current stabilization act on, so that the stream pressure of each fine filter is almost the same；SCR assembly and sulfide oxidation assembly are then respectively handled nitrogen oxides and sulfide；Therefore, the utility model, which has, filters the problem of efficient, thorough and avoidable gas directly impacts filter core.

Description

A kind of gas fired-boiler of hot tail gas processing function

Technical field

The utility model relates to a kind of gas fired-boilers of hot tail gas processing function.

Background technique

Gas fired-boiler due to using combustion gas as fuel, it is relatively cheap relative to oil burning boiler and electric boiler, thus by To being widely recognized as market, mostly applied in places such as steam, heating, bathings.Although the ash content of gaseous fuel, sulfur content and nitrogen quantity It is lower than solid fuel, but influence of the gas fired-boiler for atmosphere pollution still should not be underestimated.After combustion of natural gas exhaust gas at Dividing mainly includes dust, nitrogen oxides and sulfide etc., generally uses SCR skill for nitrogen oxides treatment in the prior art Art generally uses filter type for dust for sulfide generally by the way of oxidation plus precipitating, but existing for ash The general filter efficiency of the filter device of dirt or relatively low or filtering are not thorough, and gas compares the impact of filter core Seriously, so that the service life of filter core is not high.

Summary of the invention

It efficient to tail gas progress, thorough can be filtered the utility model proposes one kind and avoid gas directly to filter core impact The gas fired-boiler of hot tail gas processing function.

What the technical solution of the utility model was realized in：The gas fired-boiler of hot tail gas processing function includes boiler sheet Body, boiler body include combustion chamber, and combustion chamber has fuel gas inlet and offgas outlet, and releasable connection has tail on the offgas outlet Flash Gas Compression Skid System, exhaust gas processing device include air inlet pipe and connecting tube, and air inlet pipe is connected with offgas outlet, air inlet pipe and connecting tube Between be connected through a screw thread initial filtrator, be provided in initial filtrator changeable type strainer for bulky grain dust carry out just Filtering, connecting tube are connected with after-filter far from one end of initial filtrator, and after-filter includes upper and lower chamber, is filled out in upper chamber Filled with metal-rubber so as to gas filtration and pressure stabilizing, upper chamber has an air inlet, and air inlet is connect with the connecting tube, It is connected between upper and lower chamber by multiple perforation, the bottom chamber corresponds to each perforation and is provided with fine filter, essence filtering It is filled with active carbon particle in device, multiple micropores are arranged at intervals on fine filter, lower chambers also have gas outlet, and gas outlet is logical It crosses bend pipe and is connected with SCR assembly and sulfide oxidation assembly.

Further, the after-filter is cylindrical, and upper and lower chamber is separated by arc panel, on arc panel between Every being provided with the perforation.

Further, the air inlet is located at one end of the length direction of after-filter.

Further, the gas outlet is arranged downward, and gas outlet is located at the central location of lower chambers length direction Setting.

Using above-mentioned technical proposal, the beneficial effects of the utility model are：The utility model passes through setting initial filtrator Primary filter is carried out to bulky grain dust, removable connection type can facilitate the cleaning or replacement of its Inner filter net；After-filter can Dust further progress is filtered, while the entrance indoor high pressure draught of epicoele is depressured using metal-rubber, current stabilization, essence The setting of filter then can precisely filter gas, can carry out physics and chemisorption using active carbon, multiple essences are arranged Filter, and each fine filter is connected using parallel way, so that but also with higher filter efficiency while essence filtering, Since the decompression of metal-rubber, current stabilization act on, so that the stream pressure of each fine filter is almost the same；SCR assembly and vulcanization Object oxidation assembly is then respectively handled nitrogen oxides and sulfide；Therefore, the utility model have filtering efficiently, thoroughly and Avoidable gas directly impacts the problem of filter core.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of exhaust gas processing device dust removal part in Fig. 1；

Fig. 3 is the structural schematic diagram of after-filter and fine filter part in Fig. 2；

Wherein：1- boiler body, the combustion chamber 11-, 111- fuel gas inlet, 112- offgas outlet, 2- exhaust gas processing device, 21- air inlet pipe, 22- connecting tube, 23- initial filtrator, 231- strainer, 24- after-filter, 241- upper chamber, 2411- air inlet, 242- lower chambers, 243- metal-rubber, 244- arc panel, 2441- perforation, 25- fine filter, 251- micropore, the gas outlet 252-, 26- active carbon particle, 27- bend pipe, 28-SCR assembly, 29- sulfide oxidation assembly.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1-3, the gas fired-boiler of hot tail gas processing function includes boiler body 1, boiler body 1 includes combustion chamber 11, combustion chamber 11 has fuel gas inlet 111 and offgas outlet 112, and releasable connection has vent gas treatment dress on the offgas outlet 112 Set 2, exhaust gas processing device 2 includes air inlet pipe 21 and connecting tube 22, and air inlet pipe 21 is connected with offgas outlet 112, air inlet pipe 21 and Initial filtrator 23 has been connected through a screw thread between connecting tube 22, be provided in initial filtrator 23 changeable type strainer 231 for pair Bulky grain dust carries out prefiltration, and connecting tube 22 is connected with after-filter 24, after-filter 24 far from one end of initial filtrator 23 Including upper and lower chamber 242, metal-rubber 243 is filled in upper chamber 241 so as to gas filtration and pressure stabilizing, upper chamber 241 has There is an air inlet 2411, air inlet 2411 is connect with the connecting tube 22, passes through multiple perforation between upper and lower chamber 242 2441 connections, the lower chambers 242 are interior to be provided with fine filter 25 corresponding to each perforation 2441, is filled in fine filter 25 Active carbon particle 26, multiple micropores 251 are arranged at intervals on fine filter 25, and lower chambers 242 also have gas outlet 252, outlet Mouth 252 is connected with SCR assembly 28 and sulfide oxidation assembly 29 by bend pipe 27.The after-filter 24 is cylindrical, upper, Lower chambers 242 are separated by arc panel 244, and the perforation 2441 is arranged at intervals on arc panel 244.The air inlet 2411 are located at one end of the length direction of after-filter 24.The gas outlet 252 is arranged downward, and gas outlet 252 is located at The central location of 242 length direction of lower chambers is arranged.

When in use：The utility model carries out primary filter to bulky grain dust by setting initial filtrator 23, removable Connection type can facilitate the cleaning or replacement of its Inner filter net 231；After-filter 24 can filter dust further progress, while benefit It is depressured into the high pressure draught in upper chamber 241 with 243 Duis of metal-rubber, current stabilization, the setting of fine filter 25 then can be right Gas is precisely filtered, and can carry out physics and chemisorption using active carbon, and multiple fine filters 25, and each essence is arranged Filter 25 is connected using parallel way, so that but also with higher filter efficiency while essence filtering, due to metal-rubber 243 Decompression, current stabilization effect so that the stream pressure of each fine filter 25 is almost the same；SCR assembly 28 and sulfide oxidation are total Nitrogen oxides and sulfide are handled respectively at 29；Therefore, the utility model has filtering efficient, thorough and avoidable Gas directly impacts the problem of filter core.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (4)

1. a kind of gas fired-boiler of hot tail gas processing function, which is characterized in that including boiler body, boiler body includes burning Room, combustion chamber have fuel gas inlet and offgas outlet, and releasable connection has exhaust gas processing device, vent gas treatment on the offgas outlet Device includes air inlet pipe and connecting tube, and air inlet pipe is connected with offgas outlet, has been connected through a screw thread between air inlet pipe and connecting tube Initial filtrator is provided with changeable type strainer in initial filtrator for carrying out prefiltration to bulky grain dust, and connecting tube is far from just One end of filter is connected with after-filter, and after-filter includes upper and lower chamber, and metal-rubber is filled in upper chamber so as to right Gas filtration and pressure stabilizing, upper chamber have an air inlet, and air inlet connect with the connecting tube, passes through between upper and lower chamber Multiple perforation connections, the bottom chamber correspond to each perforation and are provided with fine filter, are filled with active carbon in fine filter Particle is arranged at intervals with multiple micropores on fine filter, and lower chambers also have gas outlet, and gas outlet is connected with SCR by bend pipe Assembly and sulfide oxidation assembly.

2. the gas fired-boiler of hot tail gas processing function according to claim 1, which is characterized in that the after-filter is in circle Cylindricality, upper and lower chamber are separated by arc panel, and the perforation is arranged at intervals on arc panel.

3. the gas fired-boiler of hot tail gas processing function according to claim 2, which is characterized in that after the air inlet is located at One end of the length direction of filter.

4. the gas fired-boiler of hot tail gas processing function according to claim 3, which is characterized in that the gas outlet is under Side's setting, and gas outlet is located at the central location setting of lower chambers length direction.