CN201514353U

CN201514353U - Burning pipe for sulfur analyzer

Info

Publication number: CN201514353U
Application number: CN 200920311873
Authority: CN
Inventors: 张渤; 王芹
Original assignee: Hunan Sundy Science and Technology Development Co Ltd
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-06-23
Anticipated expiration: 2019-09-29

Abstract

The utility model discloses a burning pipe for a sulfur analyzer, which comprises an outer pipe and an inner pipe, wherein the inner pipe is sleeved in the outer pipe, an interlayer is formed between the inner pipe and the outer pipe, one end of the outer pipe is provided with a locating pipe for clamping the outer wall of the inner pipe. The utility model relates to a burning pipe for a sulfur analyzer which has simple and compact structure, low cost and excellent stability, and can improve the measurement precision.

Description

Sulphur analyser flame tube

Technical field

The utility model is mainly concerned with the measuring equipment field of sulfur content in the combustible, refers in particular to a kind of sulphur analyser flame tube.

Background technology

As the analytical instrument of measuring sulfur content in the coal sample, the sulphur analyser is widely used in numerous industries or departments such as coal, oil, chemical industry, electric power, scientific research, teaching.At first put into crucible by a certain amount of mensuration coal sample of weighing, after crucible being sent in the flame tube in the combustion furnace of sulphur analyser fully burning, gas after the burning is derived, by discharging behind filtration unit, sulfur content induction installation, flow inductor and the pump, draw test data at last and finish successively measuring the mensuration of sulfur content in the coal sample.Often adopt coulometry or infrared method dual mode to carry out the mensuration of sulfur content in the prior art, the former sample weight is little, and sulphur-containing substance can burn faster and discharge fully in the coal, therefore adopts single tube combustion tube can satisfy requirement of experiment.Latter's sample weight be the former 6-7 doubly, for guaranteeing that sulphur-containing substance can be released fully in the coal, must carry out secondary combustion, so flame tube must possess the interlayer that can carry out secondary combustion is arranged.In addition, infrared method is surveyed the sulphur burner temperature requirement up to 1350 ℃, and can this high temperature of withstand long term exposure and indeformable material is fewer, now more common is 99 porcelain or 95 porcelain, and porcelain spare can not image-stone English etc. exotic material is equally fusible is connected into an interlayer pipe, the method that can only adopt inside and outside two-layer pipe box to establish realizes interlayer, reach the purpose of secondary combustion, and 99 porcelain or 95 porcelain shaping degree are not good, difficulty of processing is relatively large, how on simple processing technology basis, to realize this function, and easy accessibility, be the problem that prior art need solve.

The utility model content

The technical problems to be solved in the utility model just is: at the technical matters that prior art exists, the utility model provides a kind of simple and compact for structure, with low cost, good stability, can improve the sulphur analyser flame tube of measuring accuracy.

For solving the problems of the technologies described above, the utility model by the following technical solutions.

A kind of sulphur analyser flame tube comprises outer tube and interior pipe, described in pipe box be located in the outer tube, form interlayer between pipe and the outer tube in described, it is characterized in that: an end of described outer tube is provided with and is used for the positioning pipe of clamping outer wall of inner tube.

As further improvement of the utility model:

Described positioning pipe inwall by plane more than a section and more than one section arc surface form.

Described positioning pipe one end links to each other with outer tube, and the other end links to each other with tail pipe.

Compared with prior art, advantage of the present utility model just is:

1, sulphur analyser of the present utility model is with in the flame tube, and outer tube has the positioning pipe that is exclusively used in pipe in the carriage, and positioning pipe is made up of multi-section circular arc face and multistage plane, and the effect that lift the location has internally been managed on the plane, and it is sheathed in the outer tube can not arbitrarily move; The arc surface medial surface then forms interlayer with inner tube outer surface, and the air-flow that comes out from the interior pipe interlayer of can flowing through carries out secondary combustion.This is simple in structure, is easy to processing, utilizes the design feature of outer tube and interior pipe self to achieve the goal, and need not adopt other catch fitting again.

2, sulphur analyser of the present utility model is with in the flame tube, and interior pipe is directly to be sheathed in the outer tube, and is simple to operation during the dismounting flame tube, gets final product from terminal insertion of combustion furnace, has simplified assembly technology.

Description of drawings

Fig. 1 is the structural representation of the utility model in application example;

Fig. 2 is the sectional structure synoptic diagram at A-A place among Fig. 1;

Fig. 3 is that the master of the utility model middle external tube looks the sectional structure synoptic diagram;

Fig. 4 is the side-looking structural representation of the utility model middle external tube;

Fig. 5 be in the utility model in pipe overlook the sectional structure synoptic diagram.

Marginal data

1, tail pipe; 2, tail chamber; 3, positioning pipe; 31, plane; 32, arc surface; 4, outer tube; 5, outer lumen; 6, the outer mouth of pipe; 7, first inner spout; 8, interior pipe; 9, interior tube chamber; 10, second inner spout; 11, support ring; 12, interlayer; 13, crucible; 14, combustion furnace; 15, sample presentation mouth; 16, first O-ring seal; 17, second O-ring seal; 18, escape pipe.

Embodiment

Below with reference to specific embodiment and Figure of description the utility model is described in further details.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, sulphur analyser flame tube of the present utility model comprises outer tube 4 and interior pipe 8, and interior pipe 8 is sheathed in the outer lumen 5 of outer tube 4, forms the interlayer 12 of sealing between interior pipe 8 and the outer tube 4.One end of outer tube 4 is provided with and is used for the positioning pipe 3 of pipe 8 outer walls in the clamping, and the other end of outer tube 4 is provided with the outer mouth of pipe 6.In pipe 8 be a single straight tube, have and be used for placing the interior tube chamber 9 that crucible 13 and supplied gas are passed through, the two ends of interior pipe 8 offer first inner spout 7 respectively and second inner spout, 10, the first inner spouts 7, interior tube chamber 9 and second inner spout 10 connect.

In the present embodiment, positioning pipe 3 inwalls by plane 31 more than a section and more than one section arc surface 32 form.Pipe 8 plays clamping in 31 pairs on the plane, lift the location, and it is sheathed in the outer tube 4 can not arbitrarily move; Pipe 8 outside surfaces form the gap in 32 of arc surfaces and the burning, and form interlayer 12 jointly with the gap of outer tube 4 inwalls and interior pipe 8 outer walls, make the air-flow that comes out from interior pipe 8 interlayer 12 of can flowing through carry out secondary combustion.What adopt in the present embodiment is that the four arcs face adds four sections planes.

In the present embodiment, positioning pipe 3 one ends link to each other with outer tube 4, and the other end links to each other with tail pipe 1.Be provided with tail chamber 2 in the tail pipe 1, tail pipe 1 is positioned at end, plays fixed support, tail pipe 1 and positioning pipe 3, outer tube 4 can be fixed on the combustion furnace 14 together by support ring 11.In the present embodiment, tail pipe 1, positioning pipe 3, outer tube 4 are formed in one.

Referring to Fig. 1 and Fig. 2, during use, at first interior pipe 8 is sheathed in the outer lumen 5 of outer tube 4, the end that interior pipe 8 is provided with first inner spout 7 is positioned at positioning pipe 3 places, and the end that interior pipe 8 is provided with second inner spout 10 links to each other with the sample presentation mouth 15 that is fixed in combustion furnace 14 front end faces by first O-ring seal 16.The end that outer tube 4 is provided with the outer mouth of pipe 6 links to each other with sample presentation mouth 15 by second O-

ring seal

17, and 1 of tail pipe is supported on by support ring 11 on the rear end face of combustion furnace 14.First O-ring seal 16 and second O-ring seal 17 all adopt the O RunddichtringO, effect by first O-ring seal 16 and second O-ring seal 17, between outer tube 4 inside surfaces and interior pipe 8 outside surfaces, form the interlayer 12 of a sealing, escape pipe 18 conductings on this interlayer 12 and the sample presentation mouth 15.When the crucible 13 that coal sample is housed is admitted in the combustion furnace 14, the gas of burning and generation sulfur-bearing, the gas that discharges under the effect of pump (not marking) flows to tail chamber 2 by interior tube chamber 9, and enter interlayer 12 through the gap between positioning pipe 3 place's outer tubes 4 and the interior pipe 8, carry out gas after the secondary combustion at last by escape pipe 18 outflow combustion furnaces 14 (gas flow is shown in the figure arrow).

The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. sulphur analyser flame tube, comprise outer tube (4) and interior pipe (8), pipe (8) is sheathed in the outer tube (4) in described, form interlayer (12) between pipe (8) and the outer tube (4) in described, it is characterized in that: an end of described outer tube (4) is provided with and is used for managing in the clamping positioning pipe (3) of (8) outer wall.

2. sulphur analyser flame tube according to claim 1 is characterized in that: described positioning pipe (3) inwall by plane (31) more than one section and more than one section arc surface (32) form.

3. sulphur analyser flame tube according to claim 1 and 2 is characterized in that: described positioning pipe (3) one ends link to each other with outer tube (4), and the other end links to each other with tail pipe (1).