CN201130165Y

CN201130165Y - Apparatus for measuring sulfureted hydrogen gas

Info

Publication number: CN201130165Y
Application number: CN 200720077321
Authority: CN
Inventors: 顾冰; 陈志敏; 曹兆钧
Original assignee: Shanghai SK Petroleum Chemical Equipment Corp Ltd; Shanghai Shenkai Petroleum Instrument Co Ltd
Current assignee: Shanghai SK Petroleum Chemical Equipment Corp Ltd; Shanghai Shenkai Petroleum Instrument Co Ltd
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2008-10-08
Anticipated expiration: 2017-12-26

Abstract

The utility model relates to a hydrogen sulfide gas measuring unit used for detecting the concentration of hydrogen sulfide, comprising an electrochemical hydrogen sulfide sensor provided with a transmitter, a detection cell, a plurality of tubes, a sealing part and a connecting piece, wherein the gas receiving surface of the electrochemical hydrogen sulfide sensor is opposite to the intracavity of the detection cell; the sealing part is arranged between the end face of the intracavity of the detection cell and the gas receiving surface of the electrochemical hydrogen sulfide sensor; the electrochemical hydrogen sulfide sensor is connected with the detection cell by the connecting piece, so the electrochemical hydrogen sulfide sensor and the detection cell are integrated into a sealed body; the tubes at both ends of the detection cell are communicated with the system of the detected gas. The measuring unit for hydrogen sulfide gas has the advantages of fast response speed and small dead volume of the detection cell.

Description

The stink damp fluid measurement device

Technical field

The utility model relates to a kind of measurement mechanism of measuring toxic gas, particularly a kind of stink damp fluid measurement device.

Background technology

Sulfuretted hydrogen is a kind of never poison, also is asphyxiating and irritative gas, and characteristics such as its tool instability, reductibility, combustibility are so need carry out dynamic and sensitive detection and warning to its content in the space.A kind of infrared absorption type hydrogen sulfide sensor of existing band transmitter, its infrared absorption peak by measurement and analytical gas comes detected gas, comprises that such sensor on-line measuring device volume ratio is bigger, and needs bigger sampling flow; Another kind of existing hydrogen sulfide sensor, with two reaction electrodes--working electrode and to electrode--and a contrast electrode is placed in the specific electrolytic solution, between reaction electrode, add enough voltage then, make through the gas to be measured that scribbles the heavy metal catalyst film and carry out redox reaction, the electric current that produces during again by the Circuits System measurement gas electrolysis in the instrument, calculate the concentration of gas then by microprocessor wherein, but comprise at present the sulfuretted hydrogen measurement mechanism of this hydrogen sulfide sensor can't be in sample size limited and dead volume require to carry out under the smaller condition work.

The utility model content

The purpose of this utility model is to provide a kind of stink damp fluid measurement device, and the dead volume of the detection cell of this measurement mechanism is little, response speed is fast.

In order to realize described purpose, stink damp fluid measurement device of the present utility model, be characterized in, comprise the galvanochemistry hydrogen sulfide sensor of being with transmitter, detection cell, pipe, seal, web member, wherein, the gas receiving plane of galvanochemistry hydrogen sulfide sensor is relative with the inner chamber of this detection cell, seal is arranged between the gas receiving plane of the interior resonator end surface of detection cell and galvanochemistry hydrogen sulfide sensor, the galvanochemistry hydrogen sulfide sensor is connected by web member with detection cell, thereby galvanochemistry hydrogen sulfide sensor and detection cell are combined into the integral body of sealing, the pipe at detection cell two ends and the system connectivity of tested gas.

The utility model makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:

1. because the gas receiving plane of galvanochemistry hydrogen sulfide sensor is relative with the inner chamber of this detection cell, make the space compactness of entire measuring device, the detection cell two ends are provided with the system connectivity of pipe and tested gas, the formation of dead volume has been avoided in the reasonable distribution of importing and exporting the position, avoid the sample transverse dispersion, improved measurement accuracy;

2. because tested gas and sensor receiving plane full contact, direct impel sensor almost all to accept to flow through the component of gas, improved the measurement response speed;

3. the pipe that is communicated with the detection cell two ends is connected sample gas, and stink damp fluid measurement device of the present utility model becomes a kind of device of continuous coverage hydrogen sulfide gas, has realized the dynamic and sensitive measurement to hydrogen sulfide gas.

Stink damp fluid measurement device of the present utility model, its further characteristics are that wrap up by barrier material the periphery of galvanochemistry hydrogen sulfide sensor and detection cell.

Owing to adopt barrier material parcel measurement mechanism, isolated contacting of device and space outerpace, played and stoped the direct influence interference to the measurement device process such as ambient temperature, air-flow, make device be in metastable state to the systematic survey process.

Below, can further understand purpose described in the utility model, specific structural features and advantage by to structure of the present utility model and in conjunction with the description of its accompanying drawing.

Description of drawings

Fig. 1 is the apparatus structure synoptic diagram of the utility model by pipeline on-line measurement hydrogen sulfide gas.

Fig. 2 is the import and export pipe position distribution synoptic diagram of the utility model detection cell.

Embodiment

Stink damp fluid measurement device of the present utility model normally connects sample gas by pipeline, be applied to the detection concentration of hydrogen sulfide, can be made into fixed or portable instrument, as shown in Figure 1, this stink damp fluid measurement device comprises galvanochemistry hydrogen sulfide sensor 1, detection cell 2, pipe 3, seal 4, web member 5, the barrier material 6 of being with transmitter.Galvanochemistry hydrogen sulfide sensor 1 is connected with detection cell 2 by web member 5, galvanochemistry hydrogen sulfide sensor 1 and detection cell 2 are combined into the integral body of a sealing by seal 4, system with tested gas couples together by the pipe 3 at detection cell two ends, comes hydrogen sulfide content in the measuring system by hydrogen sulfide sensor.

Seal 4 of folder pad between the gas receiving plane of the galvanochemistry hydrogen sulfide sensor 1 of band transmitter and the interior resonator end surface of detection cell 2, and have web member 5 to connect, make hydrogen sulfide sensor 1 and detection cell 2 become the integral body that sealing is compact.

As shown in Figure 1, barrier material 6 parcels are adopted in the periphery of the galvanochemistry hydrogen sulfide sensor 1 of band transmitter and detection cell 2.

As shown in Figure 2, the two ends of detection cell 2 connect two sections pipes 3 respectively, and pipe 3 is connected system under test (SUT).

Pipe 3 preferably adopts the little stainless steel of sulfuretted hydrogen absorption to make with detection cell 2.Seal 4 can be the O RunddichtringO, and its material adopts teflon or other associated materials of low absorption.Web member 5 selects for use stainless steel or copper material etc. to make bolt, and barrier material 6 for example is a polyurethane foamed material etc.

The galvanochemistry hydrogen sulfide sensor 1 of band transmitter can be all galvanochemistry hydrogen sulfide sensors of the prior art, as SENSOREX OY SE200 hydrogen sulfide sensor etc., the principle of work of such galvanochemistry hydrogen sulfide sensor as described in the background section, in this not repeat specification.

Though the utility model is described with reference to aforesaid specific embodiment; but those of ordinary skill in the art will be appreciated that; above embodiment is used for illustrating the utility model rather than restriction the utility model, as long as in the scope of in connotation scope of the present utility model the variation of the foregoing description, claims that modification all should drop on the application being asked for protection.

Claims

1. stink damp fluid measurement device, it is characterized in that, comprise the galvanochemistry hydrogen sulfide sensor (1) of being with transmitter, detection cell (2), pipe (3), seal (4), web member (5), the gas receiving plane of galvanochemistry hydrogen sulfide sensor (1) is relative with the inner chamber of this detection cell, seal (4) is arranged between the gas receiving plane of the interior resonator end surface of detection cell (2) and galvanochemistry hydrogen sulfide sensor (1), galvanochemistry hydrogen sulfide sensor (1) is connected by web member (5) with detection cell (2), thereby galvanochemistry hydrogen sulfide sensor (1) and detection cell (2) are combined into the integral body of sealing, and the pipe (3) that detection cell (2) two ends are provided with is communicated with the system of tested gas.

2. stink damp fluid measurement device according to claim 1 is characterized in that: the periphery of galvanochemistry hydrogen sulfide sensor (1) and detection cell (2) is by barrier material (6) parcel.