CN203363674U

CN203363674U - Chemical conveying pipeline with bypass provided with filter

Info

Publication number: CN203363674U
Application number: CN 201320380643
Authority: CN
Inventors: 汤安东; 李红广; 张新源; 何火金
Original assignee: GUANGDONG HANERGY SOLAR PV CO Ltd
Current assignee: Guangdong Hanergy Thin Film Solar Co Ltd
Priority date: 2013-06-29
Filing date: 2013-06-29
Publication date: 2013-12-25
Anticipated expiration: 2023-06-29

Abstract

The utility model discloses a chemical conveying pipeline with a bypass provided with a filter. The chemical conveying pipeline with the bypass provided with the filter comprises a feed pipe, a primary filter unit, movable connectors, a secondary filter unit and a discharge pipe. The chemical conveying pipeline with the bypass provided with the filter is characterized in that the feed pipe is provided with a first valve, a first bypass pipe, a second valve and a second bypass pipe in sequence in the feeding direction, the primary filter unit is detachably mounted on the feed pipe, the primary filter unit comprises a primary filter pipe, the primary pipe is provided with a first connector, a third valve, a primary filter, a fourth valve and a second connector in sequence in the feeding direction, and the secondary filter unit is detachably mounted between the feed pipe and the discharge pipe through the movable connectors at the two ends of the secondary filter unit. According to the chemical conveying pipeline with the bypass provided with the filter, the primary filter unit and the movable connectors are added to provide double insurances for the supplying of chemicals, multiple types of bypass filters can be selected and replaced flexibly, a pipe line purging process is optimized, purging efficiency is improved, and safe conveying of different chemicals is achieved.

Description

A kind of bypass is with the chemical product conveyance conduit of filter

Technical field

The utility model relates to a kind of chemical product conveyance conduit, and especially a kind of bypass is with the chemical product conveyance conduit of filter.

Background technique

The existing chemicals conveyance conduit has been applied a kind of structure as shown in Figure 1, it comprises supply pipe 1, cascade filtration unit and discharge nozzle 4, wherein the cascade filtration unit is arranged between supply pipe 1 and discharge nozzle 4 by union 15, supply pipe 1 is provided with the first valve 11, the cascade filtration unit comprises cascade filtration pipe 2 and secondary pipe arrangement 3, cascade filtration pipe 2 two ends are communicated with secondary pipe arrangement 3, cascade filtration pipe 2 is provided with secondary filter 21, secondary pipe arrangement 3 is provided with secondary valve 22, and secondary pipe arrangement 3 is communicated with supply pipe 1.This chemical product conveyance conduit is carrying out chemical product while carrying, be first open the first valve 11 then chemical product be fed to discharge end by secondary filter 21, but, under this tactic pattern, still exist the problem of following aspect:

1, when needs are changed secondary filter 21, be after sufficient gas or other fluids purge, carry joint to carry out integral replacing chemical product, between the stage of replacement, chemical product can't safe transport, thereby cause chemical product to be unable to supply, the normal operation that impact is produced;

2, when carrying out blowing pipeline, need open the first valve 11, pure nitrogen gas or other fluids are purged by secondary filter 21, but secondary filter 21 two ends do not have valve, cause in purge, needing to install heat riser additional to secondary filter 21, to improve the evaporation rate of chemical product, but during the liquid chemicals forced down at the processing saturated vapour, slow in evaporation rate by it, the purging number of times increases, purge time is very long, also can increase the decomposition risk of chemical product in secondary filter 21 simultaneously, makes it easily blocked.

Therefore, above-mentioned chemical product conveyance conduit is difficult to fully meet the demand of carrying the different shape chemical product.

Summary of the invention

For the deficiencies in the prior art, the utility model provides the chemical product conveyance conduit of a kind of bypass with filter, it is simple in structure, can when filter replacement, not affect normal production, and without install heat riser additional on filter, improve and purge efficiency, prevent plugged filter, there is good Safety performance.

The technical solution of the utility model is: a kind of bypass is with the chemical product conveyance conduit of filter, comprise supply pipe, the single filter unit, union, cascade filtration unit and discharge nozzle, it is characterized in that: described supply pipe is provided with the first valve successively along feedstock direction, the first bypass tube, the second valve and the second bypass tube, the single filter unit is removably mounted on supply pipe, the single filter unit comprises the single filter pipe, described single filter pipe is provided with the first joint successively along feedstock direction, the 3rd valve, grade one filter, the 4th valve and the second joint, the first joint is removably mounted on the first bypass tube, the second joint is removably mounted on the second bypass tube, the cascade filtration unit is removably mounted between supply pipe and discharge nozzle by the union at two ends.

Described cascade filtration unit comprises cascade filtration pipe and secondary pipe arrangement, and cascade filtration pipe two ends are communicated with the secondary pipe arrangement, and the cascade filtration pipe is provided with secondary filter, and the secondary pipe arrangement is provided with the secondary valve.

The beneficial effects of the utility model are:

1. reasonable in design, by increase a union, a unit of the single filter with filter and valve on the existing chemicals conveyance conduit, single filter unit and cascade filtration unit are in series, changed the single filtering function of existing structure, for the supply of chemical product provides dual fail-safe, and realized that the cascade filtration unit is removably mounted between supply pipe and discharge nozzle, thereby can select flexibly and change multiple by pass filter, and realized the safe transport of different chemical product;

2. can realize that multiple filter switches flexibly, optimized the blowing pipeline process, its grade one filter two ends are provided with valve, when blowing pipeline, throttle down, chemical product can be without grade one filter, thereby reduces purge time and purge number of times, remove the risk of adding heat riser and having reduced its obstruction simultaneously from, promoted Safety performance.

The accompanying drawing explanation

The structural representation that Fig. 1 is the existing chemicals conveyance conduit;

Fig. 2 is the structural representation of bypass described in the utility model with the chemical product conveyance conduit of filter.

In figure, 1-supply pipe, 11-the first valve, 12-the first bypass tube, 13-the second valve, 14-the second bypass tube, the 15-union, 2-cascade filtration pipe, 21-secondary filter, 22-secondary valve, 3-secondary pipe arrangement, 4-discharge nozzle, 5-the first joint, 6-the 3rd valve, 7-single filter pipe, 8-grade one filter, 9-the 4th valve, 10-the second joint.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:

As shown in Figure 2, a kind of bypass is with the chemical product conveyance conduit of filter, comprise supply pipe 1, single filter unit, union 15, cascade filtration unit and discharge nozzle 4, wherein supply pipe 1 is provided with the first valve 11, the first bypass tube 12, the second valve 13 and the second bypass tube 14 successively along feedstock direction.

The single filter unit is removably mounted on supply pipe 1, the single filter unit comprises single filter pipe 7, single filter pipe 7 is provided with the first joint 5, the 3rd valve 6, grade one filter 8, the 4th valve 9 and the second joint 10 successively along feedstock direction, the first joint 5 is removably mounted on the first bypass tube 12, and the second joint 10 is removably mounted on the second bypass tube 14.

The cascade filtration unit is removably mounted between supply pipe 1 and discharge nozzle 4 by the union 15 at two ends, the cascade filtration unit comprises cascade filtration pipe 2 and secondary pipe arrangement 3, cascade filtration pipe 2 two ends are communicated with secondary pipe arrangement 3, cascade filtration pipe 2 is provided with secondary filter 21, and secondary pipe arrangement 3 is provided with secondary valve 22.

During concrete enforcement, include but not limited to following usage mode:

1, the employing mode of movement identical with existing structure: the first valve 11, the second valve 13 are opened, and the 3rd valve 6, the 4th valve 9 are closed, and pass through grade one filter 8 supplying chemical product or purge gas;

2, without the mode of movement of secondary filter 21: the first valve 11, the 3rd valve 6, the 4th valve 9, secondary valve 22 are opened, the second valve 13 is closed, because the flow resistance of secondary valve 22 place pipelines is more much lower than the flow resistance of secondary filter 21, thereby be equivalent to chemical product without secondary filter 21;

3, adopt the mode of movement of secondary filter: the first valve 11, the 3rd valve 6, the 4th valve 9 are opened, and the second valve 13 and secondary valve 22 are closed, and two filters of flowing through due to chemical product, need suitably to increase discharge pressure;

4, when steel cylinder is changed purging: after purging several times, the 3rd valve 6, the 4th valve 9 are closed, even still have a small amount of chemical residues, also do not affect blowing pipeline, thereby without giving grade one filter 8 heating;

5, grade one filter 8 is changed: after sufficient purging, close the 3rd valve 6, the 4th valve 9, can be provided for simple replacement of by the first joint 5 and the second joint 10.

That in above-described embodiment and specification, describes just illustrates principle of the present utility model and most preferred embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.

Claims

1. a bypass is with the chemical product conveyance conduit of filter, comprise supply pipe, the single filter unit, union, cascade filtration unit and discharge nozzle, it is characterized in that: described supply pipe is provided with the first valve successively along feedstock direction, the first bypass tube, the second valve and the second bypass tube, the single filter unit is removably mounted on supply pipe, the single filter unit comprises the single filter pipe, described single filter pipe is provided with the first joint successively along feedstock direction, the 3rd valve, grade one filter, the 4th valve and the second joint, the first joint is removably mounted on the first bypass tube, the second joint is removably mounted on the second bypass tube, the cascade filtration unit is removably mounted between supply pipe and discharge nozzle by the union at two ends.

2. bypass according to claim 1 is with the chemical product conveyance conduit of filter, it is characterized in that: described cascade filtration unit comprises cascade filtration pipe and secondary pipe arrangement, cascade filtration pipe two ends are communicated with the secondary pipe arrangement, the cascade filtration pipe is provided with secondary filter, and the secondary pipe arrangement is provided with the secondary valve.