Coagulation dust removal filtering assembly

Abstract

The utility model provides a condensation dust removal filtering assembly which comprises a safety protection cover, a bottom cover installed at the bottom of the safety protection cover, an integrally upward-arranged upper protruding column arranged at the top of the bottom cover, an integrally downward-arranged impurity discharging pipe arranged at the bottom of the bottom cover, and a top cover installed at the top of the safety protection cover. A sample air inlet and a sample air outlet are formed in the top cover, a central air outlet pipe is integrally and downwards arranged in the center of the bottom of the top cover, a plurality of side holes are uniformly formed in the side wall of the central air outlet pipe, the top of the central air outlet pipe is communicated with the sample air outlet, and the primary filter element is mounted in the safety protection cover and is locked with the top cover through the bottom cover; the second-stage filter element is mounted in the first-stage filter element; and the bottom of the second-stage filter element is fixed on the upper convex column of the bottom cover through a filter element compression nut. The condensation dust removal filtering assembly is simple in structure and convenient to operate, adopts a double-layer filtering structure, can well remove PP fine powder in sample gas, and improves the filtering quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field, concretely relates to a coagulation dust removal filter assembly. BACKGROUND

[0002] In the polypropylene production process, need on -line sampling analysis and stable control gas phase reactor in the gas phase composition, to control the composition and performance of copolymer product. The main component of medium is gas phase hydrocarbon mixture, a small amount of polypropylene (PP) fine powder and propylene oligomer composition gas liquid solid three -phase mixed medium. From the process angle, the sample that truly needs on -line analysis is gas phase hydrocarbon mixture, and PP fine powder and propylene oligomer all belong to sample impurity. In order to guarantee that on -line industrial gas chromatograph can accurately analyze the composition of various mixed hydrocarbon medium, PP fine powder and oligomer in sample must be thoroughly removed through the analysis instrument sampling treatment system, otherwise will cause sampling pipeline frequent blockage, chromatographic sampling valve often jam and leakage, chromatographic quantitative tube and chromatographic column are subjected to pollution etc. Problem, serious interference normal measurement, lead to analysis data error, chromatographic stoppage etc. Accident occurs, ultimately influence process product composition and quality. The existing filter structure is complex, and it is difficult to remove PP fine powder in sample gas by adopting single layer filter structure, therefore needs improvement. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a coagulation dust removal filter assembly, simple structure, convenient operation adopts double -layer filter structure, can remove PP fine powder in sample gas well, improves filter quality.

[0004] To realize the above technical scheme, the utility model provides a coagulation dust removal filter assembly, including: safety guard, the bottom of safety guard is installed with bottom cover, the top of bottom cover is provided with the upper convex column of one body setting, the bottom of bottom cover is provided with the impurity discharge pipe of one body setting downward, the top of safety guard is installed with top cover, the top cover is provided with sample inlet hole and sample outlet hole, the bottom center of top cover is provided with the center outlet pipe of one body setting downward, a plurality of side holes are evenly provided on the lateral wall of center outlet pipe, the top of center outlet pipe is linked with sample outlet hole, primary filter core is installed in safety guard and is locked with top cover through bottom cover, secondary filter core is installed in primary filter core, and the bottom of secondary filter core is fixed on the upper convex column of bottom cover through filter core compression nut, the center outlet pipe of top cover is inserted to the center hole of secondary filter core, the sample inlet hole of top cover is communicated with primary filter core through gas path, and the top end of impurity discharge pipe is communicated with primary filter core through the impurity connecting hole on the lateral wall.

[0005] In the above technical scheme, during actual work, sample gas containing PP dust and other impurities enters from the sample gas inlet hole arranged on the top cover, and diffuses inwards through the gas path to enter the primary filter element, when the sample gas passes through the primary filter element, most of the PP dust is blocked in the primary filter element, after primary filtration, the sample gas still contains a small amount of PP fine powder, then enters the secondary filter element to perform secondary filtration, after secondary filtration, the PP fine powder can be basically completely removed, the sample gas after the secondary filtration enters the central outlet pipe through the side hole arranged on the central outlet pipe, and finally the filtered sample gas is discharged through the sample gas outlet hole, and the filtered impurities enter the impurity discharge pipe through the impurity connecting hole and are discharged outward.

[0006] Preferably, a top sealing gasket is arranged at the contact position of the primary filter element and the top cover, a top sealing gasket is also arranged at the contact position of the secondary filter element and the top cover, and a bottom sealing gasket is arranged at the contact position of the primary filter element and the bottom cover, so that the contact positions of the primary filter element and the secondary filter element and the top cover and the bottom cover have good sealing performance.

[0007] Preferably, a mounting bracket is arranged on the top cover, so as to facilitate overall installation of the condensation dust removal and filtration assembly.

[0008] Preferably, the primary filter element is a transparent adsorption and coalescence composite filter element, and a cylindrical through hole is arranged on the primary filter element, and a spiral gas guide groove is arranged on the inner ring of the primary filter element, so as to enhance the dust removal effect on the PP dust.

[0009] Preferably, the secondary filter element is a high-precision powder blocking filter element, and a central hole is arranged in the center of the secondary filter element, the central hole is connected to the central outlet pipe arranged on the top cover, and the high-precision powder blocking filter element can completely remove the PP fine powder.

[0010] Preferably, a pipe joint is arranged on the outer wall of the impurity discharge pipe, so as to facilitate external connection of the impurity discharge pipe and external discharge of the impurities.

[0011] Preferably, a transparent viewing window is arranged on the surface of the safety shield, so as to facilitate real-time observation of the filtration condition.

[0012] The condensation dust removal and filtration assembly has the advantages that the condensation dust removal and filtration assembly has a simple structure and is convenient to operate, a double-layer filtration structure is adopted, the PP fine powder in the sample gas can be well removed, the filtration quality is improved, the PP fine powder can be basically completely removed after secondary filtration, and the structure is small and exquisite, and is suitable for use in various scenes. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model provides a kind of condensation dust removal and filtration assembly, and the structure is shown in the figure.

[0014] Figure 2The three-dimensional structure explosion schematic view of the utility model.

[0015] Figure 3 The side view of the utility model.

[0016] Figure 4 For Figure 3 The sectional view in A-A direction.

[0017] In the figure: 1, mounting bracket; 2, screw; 3, top cover; 31, sample inlet hole; 32, sample outlet hole; 33, central outlet pipe; 34, side hole; 4, top sealing gasket; 5, secondary filter element; 6, filter element compression nut; 7, safety shield; 8, primary filter element; 9, bottom sealing gasket; 10, bottom cover; 101, upper convex column; 102, impurity discharge pipe; 103, impurity connecting hole; 104, pipe joint. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by the person of ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0019] Embodiment: a condensation dust removal filter assembly.

[0020] Refer to Figures 1 to 4As shown, a kind of condensation dust removal filter assembly, including: safety shield 7, the safety shield 7 surface is provided with transparent window to facilitate real-time observation the filtering condition of internal filter core, the bottom of the safety shield 7 is equipped with bottom cover 10, the top of the bottom cover 10 is provided with the upper convex column 101 being integrally set up upward, the role of upper convex column 101 is positioning and fixed secondary filter core 5, the bottom of the bottom cover 10 is provided with the impurity discharge pipe 102 being integrally set down, the outer wall of the impurity discharge pipe 102 is provided with pipe joint 104, to facilitate the external connection of impurity discharge pipe 102, the external discharge of impurity is facilitated, the top of the safety shield 7 is equipped with top cover 3, the top cover 3 is provided with sample inlet hole 31 and sample outlet hole 32, the bottom center of the top cover 3 is integrally set down the center outlet pipe 33, the lateral wall of the center outlet pipe 33 is uniformly provided with multiple side holes 34, the top of the center outlet pipe 33 is communicated with sample outlet hole 32, primary filter core 8 is installed in safety shield 7 and is locked by bottom cover 10 and top cover 3, the primary filter core 8 is transparent adsorption coalescence composite filter core, adopts cylindrical through-hole design, the inner ring of primary filter core 8 is equipped with spiral air guide groove, to enhance the dust removal effect of PP dust, secondary filter core 5 is installed in primary filter core 8, and the bottom of secondary filter core 5 is fixed on the upper convex column 101 of bottom cover 10 by filter core compression nut 6, the secondary filter core 5 is high-precision powder blocking filter core, the center of the secondary filter core 5 is provided with center hole, the center hole is docked with the center outlet pipe 33 provided on the top cover 3, high-precision powder blocking filter core can completely remove PP fine powder, the center outlet pipe 33 provided on the top cover 3 is inserted into the center hole of secondary filter core 5, the sample inlet hole 31 provided on the top cover 3 is communicated with primary filter core 8 by gas path, the top end of impurity discharge pipe 102 is communicated with primary filter core 8 by gas path through the impurity connecting hole 103 provided on the lateral wall.

[0021] In the embodiment, the mounting bracket 1 is also fixed on the top cover 3 by the screw 2, to facilitate the overall installation of the condensation dust removal filter assembly, the top sealing gasket 4 is installed at the contact position of the primary filter core 8 and the top cover 3, the top sealing gasket 4 is also installed at the contact position of the secondary filter core 5 and the top cover 3, and the bottom sealing gasket 9 is installed at the contact position of the primary filter core 8 and the bottom cover 10, to ensure that the contact position of the primary filter core 8, the secondary filter core 5, the top cover 3 and the bottom cover 10 has good sealing performance.

[0022] The working principle of the present condensation dust removal filter assembly is as follows: in actual work, sample gas containing PP dust and other impurities enters from the sample gas inlet hole 31 arranged on the top cover 3, and diffuses inwards through the gas path to enter the primary filter element 8, when the sample gas passes through the primary filter element 8, most of the PP dust is blocked inside the primary filter element 8, after primary filtration, the sample gas still contains a small amount of PP fine powder, then enters the secondary filter element 5 for secondary filtration, after secondary filtration, the PP fine powder can be basically completely removed, the sample gas after secondary filtration enters the central gas outlet pipe 33 through the side hole 34 arranged on the central gas outlet pipe 33, and finally the filtered sample gas is discharged through the sample gas outlet hole 32, and the filtered impurities enter the impurity discharge pipe 102 through the impurity connecting hole 103 and are discharged outward.

[0023] The present condensation dust removal filter assembly has simple structure, convenient operation, can well remove the PP fine powder in the sample gas, improves the filtration quality, and can basically completely remove the PP fine powder after secondary filtration, and has small and exquisite structure, and is suitable for use in various scenes.

[0024] The above is a preferred embodiment of the present application, but the present application should not be limited to the content disclosed in the embodiment and the drawings, so equivalent or modified embodiments completed without departing from the spirit of the present application fall within the protection scope of the present application.

Claims

1. A coalescing dust filtration assembly characterized by The utility model relates to a safety protection cover, the bottom of safety protection cover is equipped with bottom cover, the top of bottom cover is provided with the upper convex column of integral upward arrangement, the bottom of bottom cover is provided with the impurity discharge pipe of integral downward arrangement, the top of safety protection cover is equipped with top cover, top cover is provided with sample inlet hole and sample outlet hole, the bottom center of top cover is provided with the center outlet pipe of integral downward arrangement, the lateral wall of center outlet pipe is evenly provided with a plurality of side holes, the top of center outlet pipe communicates with sample outlet hole, primary filter core is installed in safety protection cover and is locked through bottom cover and top cover, secondary filter core is installed in primary filter core, and the bottom of secondary filter core is fixed on the upper convex column of bottom cover through filter core compression nut, the center outlet pipe of top cover is inserted to the center hole of secondary filter core, and the sample inlet hole of top cover communicates with primary filter core through gas path, and the top end of impurity discharge pipe communicates with primary filter core through the impurity connecting hole of lateral wall. The primary filter core is provided with a top sealing gasket at the contact position with the top cover, the secondary filter core is also provided with a top sealing gasket at the contact position with the top cover, and the primary filter core is provided with a bottom sealing gasket at the contact position with the bottom cover.

2. A coalescing dust filtration assembly as claimed in claim 1, wherein: The top cover is further provided with a mounting bracket.

3. A coalescing dust filtration assembly as claimed in claim 1, wherein: The primary filter core is a transparent adsorption coalescence composite filter core, which is designed in a cylindrical through hole, and the inner ring of the primary filter core is provided with a spiral air guide groove.

4. A coalescing dust filtration assembly as claimed in claim 1, wherein: The secondary filter core is a high-precision powder blocking filter core, which is provided with a center hole, and the center hole is connected with the center outlet pipe of the top cover.

5. A coalescing dust filtration assembly as claimed in claim 1, wherein: The outer wall of the impurity discharge pipe is provided with a pipe joint.

6. A coalescing dust filtration assembly as claimed in claim 1, wherein: The surface of the safety protection cover is provided with a transparent viewing window.

7. A coalescing dust filtration assembly as claimed in claim 1, wherein: ​

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