CN202921230U

CN202921230U - Dynamic activity detection mixer

Info

Publication number: CN202921230U
Application number: CN 201220654144
Authority: CN
Inventors: 程清俊; 张西珠; 胡元宏; 韩冲云; 张金凤; 范斌杰
Original assignee: Shanxi Xinhua Chemical Industry Co Ltd
Current assignee: Shanxi Xinhua Chemical Industry Co Ltd
Priority date: 2012-12-03
Filing date: 2012-12-03
Publication date: 2013-05-08
Anticipated expiration: 2022-12-03

Abstract

The utility model discloses a dynamic activity detection mixer, relates to antichemical facilities, and solves the problem of great error in detection in the prior art. The mixer adopts a two-stage mixing structure, and comprises a mixer I and a mixer II, wherein the mixer I comprises a venturi tube and an inner casing internally sleeved in the venturi tube; the venturi tube comprises a cavity, an air inlet pipe which is vertically communicated with the cavity, and an air outlet pipe which is horizontally communicated with the cavity; one end of the cavity is sealed, the other end of the cavity is communicated with the air outlet pipe through conical surface transition, one end of the inner casing extends out of the sealed end of the cavity, the other end of the inner casing is in conical surface transition, and the tail end of the inner casing is located at the transition part between the cavity and the conical surface; and the mixer II is in a sealed column structure, a guide pipe which is communicated with the air outlet pipe is arranged at the center position of the mixer II, the other end of the guide pipe is in an opened horn form, a baffle plate which is provided with circular holes is arranged between the outer wall of the mixer II and the inner wall of the guide pipe, and the end face at the end of the mixer II communicated with the air outlet pipe is also communicated with an exhaust pipe. The dynamic activity detection mixer disclosed by the utility model is simple in structure, and can improve test accuracy.

Description

Moving active detection mixer

Technical field

The utility model relates to Chemical Agent Resistant Material, is specifically related to a kind of moving active detection mixer.

Background technology

The moving active mixer design technology of the existing Chemical Agent Resistant Material of China is continued to use always is the glass blender that the fifties former Soviet Union provides when helping build, develop rapidly along with the Chemical Agent Resistant Material technology, require the also corresponding raising of its detection technique, developed to full-automatic moving active detection technique gradually by original detection manually.And adopting new equipment, in the process of new technology, because new variation has appearred in the pressure in whole moving device for detecting activity pipeline, original glass blender that adopts can't make toxic agent steam and air well mix, take a sample not representative, deviation appears in measured toxic agent vapor concentration and actual concentrations, has the larger problem of Chemical Agent Resistant Material testing result error, can jeopardize more even combatant's life and health.

For better, toxic agent steam and air are mixed, also move the accuracy of active testing process denaturant vapor concentration for test more accurately, provide life support to the combatant, be necessary that development of new moves active detection mixer.

Summary of the invention

The utility model is toxic agent steam and the air mixing inequality that exists in order to solve existing moving active detection mixer, takes a sample not representative, and the problem that the testing result error is large, and a kind of moving active detection mixer is provided.

The utility model is achieved through the following technical solutions:

Moving active detection mixer, be the secondary mixed structure, comprise blender I, blender II, wherein the blender I comprise Venturi tube and in be placed in inner sleeve in Venturi tube, described Venturi tube comprise cavity, with the blast pipe of cavity vertical connection, discharge pipe with the horizontal conducting of cavity, cavity one end sealing, the other end is communicated with discharge pipe through conical surface transition, and an end of inner sleeve stretches out the cavity blind end, other end conical surface transition, end are positioned at the transition position of cavity and the conical surface; The blender II is airtight column structure, be provided with the guide pipe that is communicated with discharge pipe in the center of blender II, the other end of guide pipe is uncovered horn-like, be provided with between the outer wall of blender II and guide pipe inwall and offer round-meshed baffle plate on it, also be communicated with blast pipe on the end face of the end that the blender II is communicated with discharge pipe.

Further, the internal diameter of described Venturi tube taper one end is identical with the internal diameter of discharge pipe, guide pipe, and is welded to connect respectively, and can guarantee like this that gas piping between two places does not produce sudden change namely can not back pressure.

On described baffle plate, even distribution diameter is the circular hole of a millimeter.

Described baffle plate preferably is arranged on 1/3rd places apart from blender II bottom, and top when the position, gas just can not well collide and flow out from blast pipe; The position on the lower, gas collisions is too fierce, can not flow out from blast pipe fully stably when causing the first half through the blender II, leave very large harm to follow-up work.

Operation principle is:

Blender I: pass into the air with certain relative humidity in inner sleeve, pass into the poison gas of low discharge from blast pipe; Air enters the blender I from inner sleeve, when gas flow arrives conical surface place, because caliber diminishes, gas flow rate increases suddenly, form negative pressure in cavity, cause the poison gas of low discharge to be sucked into cavity, enter discharge pipe, and carrying out preliminary fusion with air, the gas after fusion enters the blender II from discharge pipe.

The blender II: the gas of fusion enters in the blender II from guide pipe, because the tip designs of guide pipe becomes horn-like, make gas flow disperse the bottom of collisional mixing device II to herein the time, again collide baffle plate F after evoking, baffle plate is fixed in the middle of inside and outside wall, above it evenly distribution diameter be the circular hole of a millimeter, so far gas is able to sufficient mixing in closing device II space, the first half space of blender II is used for steadily from circular hole gas out, and the gas that mixes flows out from blast pipe.

Compared with prior art, the utility model is simple in structure, and toxic agent steam and air are mixed, and has reduced test error, has improved the accuracy of test.

Description of drawings

Fig. 1 is structural representation of the present utility model;

In figure: 1-Venturi tube, 2-blast pipe, 3-discharge pipe, 4-inner sleeve, 5-guide pipe, 6-baffle plate, 7-circular hole, 8-blast pipe.

The specific embodiment

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

Moving active detection mixer as shown in Figure 1, be the secondary mixed structure, comprise blender I, blender II, wherein the blender I comprise Venturi tube 1 and in be placed in inner sleeve 4 in Venturi tube 1, described Venturi tube 1 comprise cavity, with the blast pipe 2 of cavity vertical connection, discharge pipe 3 with the horizontal conducting of cavity, cavity one end sealing, the other end is communicated with discharge pipe 3 through conical surface transition, one end of inner sleeve 4 stretches out the cavity blind end, other end conical surface transition, end are positioned at the transition position of cavity and the conical surface; The blender II is airtight column structure, be provided with the guide pipe 5 that is communicated with discharge pipe 3 in the center of blender II, the other end of guide pipe is uncovered horn-like, be provided with the baffle plate 6 that offers circular hole 7 on it between the outer wall of blender II and guide pipe inwall, also be communicated with blast pipe 8 on the end face of the end that the blender II is communicated with discharge pipe 3.

Wherein the internal diameter of Venturi tube 1 taper one end is identical with the internal diameter of discharge pipe 3, guide pipe 5, and is welded to connect respectively; The diameter of circular hole 7 is one millimeter; Baffle plate 6 is arranged on 1/3rd places apart from blender II bottom.

Claims

1. one kind is moved active detection mixer, it is characterized in that, be the secondary mixed structure, comprise the blender I, the blender II, wherein the blender I comprise Venturi tube (1) and in be placed in inner sleeve (4) in Venturi tube (1), described Venturi tube (1) comprises cavity, blast pipe (2) with the cavity vertical connection, discharge pipe (3) with the horizontal conducting of cavity, cavity one end sealing, the other end is communicated with discharge pipe (3) through conical surface transition, one end of inner sleeve (4) stretches out the cavity blind end, other end conical surface transition, end is positioned at the transition position of cavity and the conical surface, the blender II is airtight column structure, be provided with the guide pipe (5) that is communicated with discharge pipe (3) in the center of blender II, the other end of guide pipe is uncovered horn-like, be provided with the baffle plate (6) that offers circular hole (7) on it between the outer wall of blender II and guide pipe inwall, also be communicated with blast pipe (8) on the end face of the end that the blender II is communicated with discharge pipe (3).

2. moving active detection mixer according to claim 1, is characterized in that, the internal diameter of described Venturi tube (1) taper one end is identical with the internal diameter of discharge pipe (3), guide pipe (5), and is welded to connect respectively.

3. moving active detection mixer according to claim 1 and 2, is characterized in that, the diameter of described circular hole (7) is one millimeter.

4. moving active detection mixer according to claim 1 and 2, is characterized in that, described baffle plate (6) is arranged on 1/3rd places apart from blender II bottom.