CN210905379U

CN210905379U - Filtering and drying mechanism for pretreatment device of gas online analysis instrument

Info

Publication number: CN210905379U
Application number: CN201921739930.3U
Authority: CN
Inventors: 殷文
Original assignee: Dengshuo Automation Engineering Nanjing Co ltd
Current assignee: Dengshuo Automation Engineering Nanjing Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-07-03
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a gas on-line analysis instrument is filtering and drying mechanism for preprocessing device, including dust removal structure and the first-level trachea of setting in the dust removal structure front end, dust removal structure is a rectangle box structure, its box front end has seted up the air inlet, its box rear end has seted up the gas outlet, the air inlet is connected with the first-level trachea, the gas outlet is connected with the second-level trachea, the rear end of second-level trachea is connected with the drying tube through the trachea connector, the drying tube is a round tube, be provided with the external screw thread structure on the front end lateral wall of its body, be provided with the internal screw thread structure on the inner wall of its body, and be provided with the fixed pipe in the cavity of its body, and the end of body is; let gas pass the filter screen and be the upper end from the lower extreme flow direction filter screen of filter screen to make the dust of being filtered out by the filter screen can drop in the bottom of box, thereby avoid can gathering a large amount of dust on the filter screen, influence the filter effect of filter screen.

Description

Filtering and drying mechanism for pretreatment device of gas online analysis instrument

Technical Field

The utility model particularly relates to a gaseous online analytical instrument is filtering and drying mechanism for preprocessing device.

Background

The on-line gas analyzer is used for analyzing gas composition and belongs to one of flow process analyzers. The gas analyzer is a chemical parameter measuring instrument, and in many industrial production processes, the position of the gas analyzer is comparable to that of physical parameter measuring instruments such as a pressure instrument and a flow instrument, and the gas analyzer can play important roles in controlling production environment, reducing safety accidents and the like.

But do not be equipped with special dust removal drying mechanism on traditional gas analysis appearance to let dust and steam in the gas influence the measuring degree of accuracy, caused the harm to gas analysis appearance's inner structure moreover, increased gas analysis appearance's maintenance cost, for this reason the utility model aims to provide a gaseous online analytical instrument is filtering drying mechanism for preprocessing device, with the problem of proposing in solving above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a gaseous online analytical instrument is filtering and drying mechanism for preprocessing device to reach the detection precision who improves the device, and can better protect the inside detecting instrument's of online analytical instrument purpose.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gaseous online analytical instrument is filtering and drying mechanism for preprocessing device, includes dust removal structure and the one-level trachea of setting at the dust removal structure front end, dust removal structure is a rectangle box structure, and the air inlet has been seted up to its box front end, and the gas outlet has been seted up to its box rear end, the air inlet is connected with the one-level trachea, the gas outlet is connected with the second grade trachea, the tracheal rear end of second grade is connected with the drying tube through the trachea connector, the drying tube is a pipe, is provided with the external screw thread structure on the front end lateral wall of its body, is provided with the internal thread structure on the inner wall of its body, and is provided with fixed pipe in the cavity of its body, and the end of body is connected.

Preferably, the inside lower baffle and the last baffle of being provided with of dust removal structure's box, lower baffle is provided with three altogether, its lower surface and the fixed welding of box lower surface, and the both sides lateral wall fixed welding of its front and back end and box, it is provided with two altogether to go up the baffle, and the fixed welding of upper surface of its upper surface and box, and the fixed welding of both sides wall of its front and back end and box, and lower baffle and the crisscross setting of last baffle.

Preferably, the fixed joint respectively has one-level filter screen, second grade filter screen and tertiary filter screen in the front surface of three plate bodys of lower baffle, the filtration mesh of one-level filter screen, second grade filter screen and tertiary filter screen reduces in proper order, and the both ends of three filter screens and the fixed joint of both sides lateral wall of dust removal structure box, and the front end of one-level filter screen splices with the antetheca of box mutually, and the front end of second grade filter screen and tertiary filter screen splices with the rear side surface of overhead gage.

Preferably, the fixed pipe is a round pipe, the outer wall of the tail end of the pipe body is provided with fixed pipe threads, the outer liner and the inner liner are fixedly connected to the rear portion of the pipe body in an adhesive mode, the outer liner and the inner liner are of round pipe structures, meshes are evenly arranged on the pipe body, the two pipe bodies are coaxially arranged, a gap is reserved between the inner wall of the outer liner and the outer wall of the inner liner, drying agents are stored in the gap, the tail end of the outer liner is sealed through a sealing plate, and the sealing plate is fixedly connected to the tail end of the outer liner and the tail end of the inner liner in an adhesive mode.

Preferably, the drying agent stored in the gap between the outer container and the inner container is anhydrous copper sulfate particles.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the upper baffle and the lower baffle are arranged in the dust removing box, so that the interior of the box body is divided into a circuitous cavity, the circulation time of gas in the box body is prolonged, the gas passes through the filter screen and flows from the lower end of the filter screen to the upper end of the filter screen, and the dust filtered by the filter screen falls at the bottom end of the box body, so that the phenomenon that a large amount of dust is gathered on the filter screen to influence the filtering effect of the filter screen is avoided;

2. and through setting up inner bag and outer courage structure with the rear of fixed pipe to place the drier in the cavity that inner bag and outer courage formed, let gas flow through from the inner bag, carry out the drying back through the drier and flow to the outer side of outer courage, increased the area of contact of gas with the drier, thereby improved gaseous drying efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the dust removing structure of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the structure of the air tube connector of the present invention;

fig. 5 is a schematic view of the structure of the drying tube of the present invention;

FIG. 6 is a front view of the fixing tube and the outer container of the present invention;

fig. 7 is a cross-sectional view taken along line B-B of fig. 6.

In the figure: dust removal structure 1, one-level trachea 2, air inlet 3, gas outlet 4, lower baffle 5, superior baffle 6, one-level filter screen 7, second grade filter screen 8, tertiary filter screen 9, second grade trachea 10, trachea connector 11, drying tube 12, external screw thread structure 13, internal thread structure 14, fixed pipe 15, fixed pipe screw thread 16, outer courage 17, inner bag 18, closing plate 19, tertiary trachea 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a gaseous online analytical instrument is filtering and drying mechanism for preprocessing device, including dust collecting structure 1 and the one-level trachea 2 of setting at dust collecting structure 1 front end, dust collecting structure 1 is a rectangle box structure, air inlet 3 has been seted up to its box front end, gas outlet 4 has been seted up to its box rear end, air inlet 3 is connected with one-level trachea 2, gas outlet 4 is connected with second grade trachea 10, second grade trachea 10's rear end is connected with drying tube 12 through trachea connector 11, drying tube 12 is a pipe, be provided with external screw thread structure 13 on the front end lateral wall of its body, be provided with internal thread structure 14 on the inner wall of its body, and be provided with fixed pipe 15 in the cavity of its body, and the end of body is connected with tertiary trachea 20.

Furthermore, the interior of the box body of the dust removing structure 1 is provided with a lower baffle 5 and an upper baffle 6, the lower baffle 5 is provided with three baffles, the lower surface of the lower baffle is fixedly welded with the lower surface of the box body, the front end and the rear end of the lower baffle are fixedly welded with the side walls of the two sides of the box body, the upper baffle 6 is provided with two baffles, the upper surface of the upper baffle is fixedly welded with the upper surface of the box body, the front end and the rear end of the upper baffle are fixedly welded with the two side walls of the box body, the lower baffle 5 and the upper baffle 6 are arranged in a staggered manner, the interior of the box body is divided into circuitous cavities by arranging the upper baffle and the lower baffle in the;

further, the front surfaces of the three plate bodies of the lower baffle 5 are respectively fixedly connected with a first-stage filter screen 7, a second-stage filter screen 8 and a third-stage filter screen 9 in a gluing mode, the filter meshes of the first-stage filter screen 7, the filter meshes of the second-stage filter screen 8 and the third-stage filter screen 9 are sequentially reduced, the two ends of the three filter screens are fixedly connected with the side walls of the two sides of the box body of the dust removal structure in a gluing mode, the front end of the first-stage filter screen 7 is connected with the front wall of the box body in a gluing mode, the front ends of the second-stage filter screen 8 and the third-stage filter screen 9 are connected with the rear side surface of the upper baffle in a gluing mode, and air is enabled to pass through the filter screens and flows to the;

furthermore, the fixed pipe 15 is a circular pipe, the outer wall of the end of the pipe body is provided with a fixed pipe thread 16, an outer liner 17 and an inner liner 18 are fixedly glued at the rear part of the pipe body, the outer liner 17 and the inner liner 18 are both circular pipe structures, and the pipe bodies are uniformly provided with meshes, the two pipe bodies are coaxially arranged, a gap is left between the inner wall of the outer liner 17 and the outer wall of the inner liner 18, the gap is filled with desiccant, and the end of the desiccant is sealed by a sealing plate 19, the sealing plate 19 is fixedly glued at the ends of the outer liner 17 and the inner liner 18, the structure of the inner container 18 and the outer container 17 is arranged behind the fixed pipe 15, and the drying agent is placed in the cavity formed by the inner container 18 and the outer container 17, so that the gas flows through the inner container 18, after being dried by the drying agent, the drying agent flows to the outer side of the outer container 17, so that the contact area of the gas and the drying agent is increased, and the drying efficiency of the gas is improved;

furthermore, the drying agent stored in the gap between the outer container 17 and the inner container 18 is anhydrous copper sulfate particles, and anhydrous copper sulfate which does not react with acid gas and alkaline gas is used as the drying agent, so that the influence on gas components is avoided, the measurement data is influenced, and the anhydrous copper sulfate can be recycled after being heated and dried, so that the drying agent is very environment-friendly;

the working principle is as follows: during the in-service use, the staff will wait to detect gaseous leading-in to dust collecting structure 1 from air inlet 3, then wait to detect gaseous circuitous one-level filter screen 7 in dust collecting structure 1, second grade filter screen 8 and tertiary filter screen 9, through the filter effect of three-layer filter screen, will wait to detect the impurity particulate matter that contains in the gas and filter and clear away, then wait to detect gaseous discharge from gas outlet 4, and carry the cavity of inner bag 18 in the drying tube 12 through second grade trachea 10, then its gaseous drier between through inner bag 18 and outer courage 17 intermediate layer, the effect through the drier is adsorbed the steam that exists in waiting to detect the gas, thereby avoid waiting to detect the steam in the gaseous detection precision of detecting to cause the influence to the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gaseous online analytical instrument is filtering and drying mechanism for preprocessing device, includes dust removal structure (1) and sets up one-level trachea (2) at dust removal structure (1) front end, its characterized in that: dust removal structure (1) is a rectangle box structure, and air inlet (3) have been seted up to its box front end, and gas outlet (4) have been seted up to its box rear end, air inlet (3) are connected with one-level trachea (2), gas outlet (4) are connected with second grade trachea (10), the rear end of second grade trachea (10) is connected with drying tube (12) through trachea connector (11), drying tube (12) are a pipe, are provided with external screw thread structure (13) on the front end lateral wall of its body, are provided with on the inner wall of its body internal thread structure (14), and are provided with fixed pipe (15) in the cavity of its body, and the end of body is connected with tertiary trachea (20).

2. The filtering and drying mechanism for the pretreatment device of the gas on-line analysis instrument as claimed in claim 1, wherein: the utility model discloses a dust removal structure, including dust removal structure (1), box inside is provided with down baffle (5) and last baffle (6), lower baffle (5) are provided with three altogether, its lower surface and the welding of box lower fixed surface, and the both sides lateral wall fixed welding of its front and back end and box, it is provided with two altogether to go up baffle (6), and the upper surface fixed welding of its upper surface and box, and the both sides wall fixed welding of its front and back end and box, and lower baffle (5) and last baffle (6) crisscross setting.

3. The filtering and drying mechanism for the pretreatment device of the gas on-line analysis instrument as claimed in claim 2, wherein: the front surface of the three plate bodies of lower baffle (5) is fixed respectively and is spliced and has one-level filter screen (7), second grade filter screen (8) and tertiary filter screen (9), the filtration mesh of one-level filter screen (7), second grade filter screen (8) and tertiary filter screen (9) reduces in proper order, and the both ends of three filter screens are fixed with the both sides lateral wall of dust removal structure box and are spliced, and the front end of one-level filter screen (7) splices mutually with the antetheca of box, and the front end of second grade filter screen (8) and tertiary filter screen (9) splices with the rear side surface of overhead gage.

4. The filtering and drying mechanism for the pretreatment device of the gas on-line analysis instrument as claimed in claim 1, wherein: the fixed pipe (15) is a round pipe, the outer wall of the tail end of the pipe body is provided with a fixed pipe thread (16), the rear of the pipe body is fixedly connected with an outer liner (17) and an inner liner (18) in an adhesive mode, the outer liner (17) and the inner liner (18) are of round pipe structures, meshes are evenly arranged on the pipe body, the two pipe bodies are arranged coaxially, a gap is reserved between the inner wall of the outer liner (17) and the outer wall of the inner liner (18), a drying agent is stored in the gap, the tail end of the drying agent is sealed through a sealing plate (19), and the sealing plate (19) is fixedly connected with the tail end of the outer liner (17) and the tail end of the inner liner (18) in an adhesive mode.

5. The filter drying mechanism for the pretreatment device of the gas on-line analysis instrument according to claim 4, wherein: the drying agent stored in the gap between the outer container (17) and the inner container (18) is anhydrous copper sulfate particles.