CN102008852A

CN102008852A - Online filtering device

Info

Publication number: CN102008852A
Application number: CN 201010509528
Authority: CN
Inventors: 杨裕能
Original assignee: Nantong Haiying Electromechanical Group Co Ltd
Current assignee: Nantong Haiying Electromechanical Group Co Ltd
Priority date: 2010-10-15
Filing date: 2010-10-15
Publication date: 2011-04-13

Abstract

The invention relates to an online filtering device belonging to the technical field of petrochemical industry pipeline facilities. The device comprises four filter element filters and two filter bed filters, wherein the four filter element filters are respectively used as pre-filters and post-filters, and the two filter bed filters are used as mid-filters; a liquid inlet header pipe is respectively connected with the liquid inlets of the two pre-filters through a first stage branch pipeline and then is connected with mid-front pipes through a first stage liquid outlet valve; the mid-front pipes are respectively connected with the liquid inlets of the mid-filters through a second stage branch pipeline and then respectively are connected with mid-rear pipes through a second stage liquid outlet valve; and the mid-rear pipes are respectively connected with the liquid inlets of the two post-filters through a third stage branch pipeline, then are connected with a liquid outlet header pipe and meanwhile are also connected with the liquid outlet header pipe through a bypass pipe via a bypass valve. The invention has simple pipeline structure, can be flexibly switched and has lots of combination modes, thereby satisfying various service demands.

Description

The on-line filtration device

Technical field

The present invention relates to a kind of filter, especially a kind of on-line filtration device belongs to petrochemical industry pipeline facilities technical field.

Background technology

Retrieval discovery application number is that the Chinese patent application of CN200520074793.8 discloses a kind of full-automatic online amine liquid filtering and purifying that supplies the amine liquid for desulphurization filtration, purification to use, embed shute thread metal screen formula filter A by two, deep layer filter bed B, hyperfine metal filtering core formula filter C and base plate D form, the import of filter bed B links with pipeline is in parallel with the outlet of two net type filter A, the import of its outlet and filer element type filter C links with pipeline, this three-stage filtration purifier is assembled on the base plate D and is integral, before the filter of two net type filter A and after the filter pressure sensor is housed all, another is standby for work in two.In addition, application number is that the Chinese patent application of CN200820222488.2 discloses a kind of full-automatic online amine liquid filtering and purifying, device case is divided into fluid reservoir C, absorption chamber B and three spaces of the A of separation chamber, in fluid reservoir, is provided with anti-vortex board, leakage fluid dram, sewage draining exit and falls the liquid mozzle; In efficient separation chamber, be provided with gas pretreatment unit, gas reallocation unit and membrane filter unit; Switch in the separation chamber and be provided with mechanical separative element.

The problem that above prior art in use reflects is: 1, be not that all filter plants all can clean or clear up maintenance under the non-stop-machine situation of complete machine; 2, do not have the function of changing filtering accuracy as required; 3, pipeline complexity; Therefore be difficult to satisfy the filtration occasion that specific (special) requirements is arranged.

Summary of the invention

The objective of the invention is to: at the deficiency of above-mentioned prior art existence; by connecting line rationally is set, proposes a kind of whole filter plant and all can under the non-stop-machine situation of complete machine, clear up and safeguard and not only can change filtering traffic as required but also can change the simple and direct on-line filtration device of pipeline of filtering accuracy.

In order to reach above purpose, on-line filtration device of the present invention comprises four candle filters and two depth filtration, deep bed filtration devices; Wherein two candle filters are as first order fore filter, and two depth filtration, deep bed filtration devices are as partial mid-filter, and two candle filters are as selecting third level post-filter in addition; The feed liquor house steward is by first order branch line and connect two fore filter inlets through first order feed liquor valve respectively, and the liquid outlet of described two fore filters connects through first order liquid valve respectively and manages before mid-; Described mid-preceding pipe is by second level branch line and connect two mid-filter inlets through second level feed liquor valve respectively, and the liquid outlet of described two mid-filters is postpone pipe in second level liquid valve connects respectively; The postpone pipe also connects two post-filter inlets through third level feed liquor valve respectively by third level branch line in described, the liquid outlet of described two post-filters picks out the liquid house steward through third level liquid valve respectively, and simultaneously described middle postpone pipe also picks out the liquid house steward by shunt valve through bypass valve.

Not only pipeline structure is simple and direct for the pipeline of this level repeatedly in parallel in twos series connection, and can switch neatly, has many compound modes, thereby satisfies various user demands.For example, when needing big flow, can open whole filter plants; When filtering flow hour or when needing cleaning to safeguard arbitrary equipment, respectively open an equipment in the three-stage filtration as long as select; When need not three-stage filtration, as long as make third level short circuit by shunt valve, or the like.

The present invention further improves, and the short circuit pipe that described mid-preceding Guan Jing has short valve connects shunt valve.Like this, when only needing one-level to filter, connect short circuit pipe and shunt valve simultaneously and get final product.

The present invention further improves, and the described mid-preceding pipe also loop pipe through having return valve taps into the liquid house steward.Like this, when big traffic filtering and second or one of third level filter plant need close cleaning the time, can be by the backflow self-loopa of first order filter, play interim cushioning effect, thereby solved the front and back filter capacity temporary transient unmatched contradiction that two preposition filtrations and one of filter temporary close thereafter cause so that foolproof behave is ingenious.

Description of drawings

The present invention is further illustrated below in conjunction with accompanying drawing.

Fig. 1 is the pipeline structure schematic diagram of one embodiment of the invention.

The specific embodiment

Embodiment one

The on-line filtration device of present embodiment as shown in Figure 1, two candle filter A1, B1 are as first order fore filter, two depth filtration, deep bed filtration device A2, B2 are as partial mid-filter, and two candle filter A3, B3 are as selectable third level post-filter in addition.Feed liquor house steward 1 is by first order branch line and connect the inlet of two fore filter A1, B1 respectively through first order feed liquor valve VA1, VB1, and the liquid outlet of two fore filter A1, B1 connects through first order liquid valve FA1, FB1 respectively and manages 2 before mid-.Pipe 2 also connects two mid-filter A2, B2 inlet through second level feed liquor valve VA2, VB2 respectively by second level branch line before mid-, and the liquid outlet of two mid-filter A2, B2 is postpone pipe 3 in second level liquid valve FA2, FB2 connect respectively.Middle postpone pipe 3 also connects the inlet of two post-filter A3, B3 respectively through third level feed liquor valve VA3, VB3 by third level branch line, the liquid outlet of two post-filter A3, B3 picks out liquid house steward 4 through third level liquid valve FA3, FB3 respectively, and postpone pipe 3 also picks out liquid house steward 4 by shunt valve 5 through bypass valve F in the while.

Pipe 2 short circuit pipes 7 through having short valve connect shunt valve 5 before mid-.The mid-preceding pipe 2 also loop pipe through having return valve 6 taps into liquid house steward 1.In addition, the two first order branch lines also direct-connected pipe through having control valve connect third level branch line respectively, can directly finish filtration by third level filter when only needing smart filter like this.

All the other pipelines are backwash and discharge pipe among the figure, and are basic identical with prior art, do not give unnecessary details in addition.

Two equipment of each grade are parallel with one another in the three-stage filtration series pipe of present embodiment, and pipeline structure is obviously simple and direct than existing, by the valve switching controls, can realize multiple function.When the big flow of needs, can open whole filter plants; When filtering flow hour,, promptly can very realize many combination switchings of three grades of device A i, Bi, Ci (i=1,2) neatly, thereby satisfy various user demands as long as select respectively to open an equipment in the three-stage filtration.When need not three-stage filtration, as long as make third level short circuit by shunt valve.Especially, when arbitrary equipment is safeguarded in the needs cleaning, with this equipment temporary close, do not influence the operate as normal of whole filtration system, when the filter capacity of filter did not match before and after this might occur,, can draft the adhoc buffer effect by the self-loopa of part filtered fluid as long as connect return duct, alleviate the filter pressure of follow-up filter, keep the system equalization operation.

In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims

1. an on-line filtration device comprises four candle filters and two depth filtration, deep bed filtration devices; Wherein two candle filters are as first order fore filter, and two depth filtration, deep bed filtration devices are as partial mid-filter, and two candle filters are as selecting third level post-filter in addition; It is characterized in that: the feed liquor house steward is by first order branch line and connect two fore filter inlets through first order feed liquor valve respectively, and the liquid outlet of described two fore filters connects through first order liquid valve respectively and manages before mid-; Described mid-preceding pipe is by second level branch line and connect two mid-filter inlets through second level feed liquor valve respectively, and the liquid outlet of described two mid-filters is postpone pipe in second level liquid valve connects respectively; The postpone pipe also connects two post-filter inlets through third level feed liquor valve respectively by third level branch line in described, the liquid outlet of described two post-filters picks out the liquid house steward through third level liquid valve respectively, and simultaneously described middle postpone pipe also picks out the liquid house steward by shunt valve through bypass valve.

2. on-line filtration device according to claim 1 is characterized in that: the short circuit pipe that described mid-preceding Guan Jing has short valve connects shunt valve.

3. on-line filtration device according to claim 1 is characterized in that: the described mid-preceding pipe also loop pipe through having return valve taps into the liquid house steward.

4. according to claim 1,2 or 3 described on-line filtration devices, it is characterized in that: the described two first order branch lines also direct-connected pipe through having control valve connect third level branch line respectively.