CN201353474Y

CN201353474Y - Drying device for sulphur meter

Info

Publication number: CN201353474Y
Application number: CNU2009200003343U
Authority: CN
Inventors: 罗建文; 蒋瑶
Original assignee: Changsha Kaiyuan Instruments Co Ltd
Current assignee: Changsha Kaiyuan Instruments Co Ltd
Priority date: 2009-01-08
Filing date: 2009-01-08
Publication date: 2009-12-02
Anticipated expiration: 2019-01-08

Abstract

The utility model discloses a drying device for a sulphur meter, which mainly consists of a drying tube, allochroic silicagel, a gas circuit upper supporting base, a gas circuit lower supporting base, a large connector, a small connector and a hold-down nut. The drying tube is a cylindrical glass tube with an upper opening and a lower opening, the diameter of the opening at the top end of the drying tube is larger than that of the opening at the bottle end of the drying tube, the large connector and the small connector are connected with two ends of the drying tube, O-shaped sealing rings are arranged at positions of grooves of the connectors, the O-shaped sealing rings are tightly engaged with the inner wall of the drying tube to seal, the upper supporting base and the lower supporting base which are used for fixing the large connector and the small connector are two fixing bases, the upper supporting base and the lower supporting base are respectively provided with a cavity and a breather hole which are communicated with the connectors, the hold-down nut is in threaded connection with the large connector, and the allochroic silicagel is used as drying agent which is filled in the drying tube. The drying device for a sulphur meter has the advantages of convenient and fast operation, fine drying effect, long service life, and is easily to guarantee the sealing property.

Description

A kind of drying device that is used for sulphur meter

Technical field

The utility model relates to the drying device that is used for coal analysis instrument field.

Background technology

Coal is in the heating flame process, and wherein sulphur formation sulfur dioxide gas is discharged in the atmosphere, becomes the main component of atmosphere pollution.The sulphur major part forwards in the coke in the coal when coking, and the sulphur in the coke enters the pig iron again, and iron and steel is become fragile.So sulphur content is one of harmful element in coal, also be one of important indicator of estimating Coal Quality.For this reason, usefulness coal departments such as coal production department, foreign trade, electric power, coking all attach great importance to the mensuration of sulphur in the coal.Now carry out in the sulphur meter of the assay determination of total sulphur content in the coal according to the high-temp combustion coulometry that proposes in China's standard, the sulfur-bearing coal sample rests on the pyrolysis furnace high-temperature area, after fully burning, the sulphur of various forms is all oxidized, resolve into sulfur dioxide enters by the pipeline that links to each other with combustion tube with a spot of sulfur trioxide gas and advances titration in the electrolytic cell, and the electric weight that is consumed according to electrolysis iodine and bromine is measured the content of sulphur in the sample.As the air of carrier gas stream, if drying not can make SO ₂(or SO ₃) before entering electrolytic cell, combine with moisture and form H ₂SO ₃(H ₂SO ₄), and be adsorbed on the inner-walls of duct, not only influence test result, and easily cause pipeline to be corroded; In addition, behind electrolytic cell, be connected with the device that detects flow,, will certainly influence the accuracy that flow is judged if there is steam to enter wherein.Therefore, it is necessary drying being carried out in carrier gas.In existing sulphur meter, drying device generally is that discolour silica gel is placed pipe in the cylindrical glass, then interior pipe box is gone into outer tube, seals at the mouth of pipe, inlet, outlet links to each other with the inside and outside glass tube of glass respectively, and stagger to become high low level up and down, and linking to each other with gas circuit with silicone tube respectively, integral hanging is on instrument then, under the effect of air pump, air flows to from interior pipe, flows out from outer tube, and the air super-dry of flowing through forms the loop.When drier changed, operating personnel needed in time to change.During replacing, need pull out sebific duct, unload interior pipe, with its drier of changing into of drier of variable color, opposite order is installed during again according to dismounting.Whole operation is more loaded down with trivial details, and, repeatedly tear open and pull out silicone tube, easily make it aging, thereby can not guarantee sealing; Dismounting is during glass inner tube, very easily breaks glass pipe and hinders hand, is unfavorable for long-term use.

The utility model content

The utility model aims to provide a kind of drying device that is used for sulphur meter, overcoming the above-mentioned disadvantage of prior art,

The technical solution adopted in the utility model is:

A kind of drying device that is used for sulphur meter, comprise drying tube, discolour silica gel, the gas circuit upper bracket, the gas circuit undersetting, big joint, little joint and clamp nut, described drying tube is the cylindric glass tube of upper and lower opening, the top end opening diameter of pipe is greater than the bottom, greatly, little joint links to each other with the drying tube two ends, the joint groove is installed O-ring seals, closely cooperate with the drying tube inwall and to form sealing, be used for fixing big, on the little joint, undersetting is two holders, have the cavity and the passage that communicate with joint, clamp nut is with joint is by being threaded greatly, and discolour silica gel is a drier, is filled in the drying tube.

A part of mineral wool is filled in described drying tube top and the bottom.

The utility model compared with prior art, the version of inside and outside glass tube before characteristics are to forgo, simplified structure is convenient to dismounting, reduces manipulation strength; When changing silica gel, only need unclamp clamp nut, then drying tube upwards be mentioned gently, the lower end is shown, drying tube can be taken out, simple to operate, without the plug silicone tube, not fragile drying tube; Utilize clamp nut that drying tube is fixed on a position, prevent that drying tube from slight displacement may occur and making sealing property influenced, makes sealing more reliable; The internal volume of drying tube obtains amplification, has significantly reduced the replacing frequency of operating personnel to drier, has alleviated their labour intensity; Discolour silica gel is filled between the mineral wool, avoids silica gel particle to stop up gas circuit, improved gas circuit stability, reduce fault rate, help long-term use.Have simple operation, drying effect good, guarantee advantages such as sealing property, long service life easily.

Description of drawings

Fig. 1 is the structural representation of the utility model drying device.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of reference numerals is as follows:

1---air inlet 2---gas circuit upper bracket

3---big joint 4---clamp nut

5---big O-ring seals 6---mineral wool

7---discolour silica gel 8---drying tube

The little joint of 9---little O-ring seals 10---

11---gas circuit undersetting 12---gas outlet

As shown in Figure 1, this drying device is mainly by drying tube 8, discolour silica gel 7, gas circuit upper bracket 2, gas circuit undersetting 11, big joint 3, little joint 10 and clamp nut 4 are formed, drying tube 8 is the cylindric glass tube of upper and lower opening, the top end opening diameter of pipe is greater than the bottom, be convenient to the filling and the replacing of discolour silica gel, big joint 3, little joint 10 links to each other with the drying tube two ends, the joint groove is installed big O-ring seals 5 respectively, little O-ring seals 9, closely cooperate with the drying tube inwall and to form sealing, drying tube can make the lower end throw off little joint freely to show to pushing away upward along big joint, gas circuit upper bracket 2, gas circuit undersetting 11 is two holders, be used for fixing big respectively, little joint, bearing has the cavity that communicates with joint, link to each other with miscellaneous part in the gas circuit by the passage on the bearing and to form the loop, clamp nut 4 and big joint 3 are by being threaded, screw nut, clamp nut is descending tightly to be locked drying tube, thereby pop up and break away from sealing ring owing to drying tube appears in draught head when avoiding bleeding, guarantee good air-tightness, discolour silica gel 7 is a drier, be filled in the drying tube 8, for avoiding silica gel particle to stop up gas circuit, can fill a part of mineral wool 6 in the drying tube top and the bottom.

During use, carrier gas is entered by gas circuit upper bracket air inlet 1 under the effect of aspiration pump, the flow through cavity of bearing, gas by with big joint that gas circuit upper bracket bottom surface links to each other after, to enter into whole drying tube uniformly, from top to bottom fully contact with discolour silica gel, again by the little joint gas circuit undersetting of flowing through, after being full of the cavity in the bearing, through carrier gas 12 outflows from the gas outlet of super-dry, air inlet 1, gas outlet 12 link to each other with carrier gas source (aspiration pump) by silicone tube and high-temp combustion interface tube and form the loop.

More than the utility model is introduced, above-mentioned explanation just is used for helping to understand method of the present utility model and core concept, simultaneously, to one of ordinary skill in the art, according to thought of the present utility model, the part that all can change on the specific embodiment, in sum, this description should not be construed as restriction of the present utility model.

Claims

1, a kind of drying device that is used for sulphur meter, it is characterized in that, comprise drying tube, discolour silica gel, the gas circuit upper bracket, the gas circuit undersetting, big joint, little joint and clamp nut, described drying tube is the cylindric glass tube of upper and lower opening, the top end opening diameter of pipe is greater than the bottom, greatly, little joint links to each other with the drying tube two ends, the joint groove is installed O-ring seals, closely cooperate with the drying tube inwall and to form sealing, be used for fixing big, on the little joint, undersetting is two holders, has the cavity and the passage that communicate with joint, and clamp nut and big joint are by being threaded, discolour silica gel is a drier, is filled in the drying tube.

2, the drying device that is used for sulphur meter according to claim 1 is characterized in that, a part of mineral wool is filled in described drying tube top and the bottom.