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Rotational flow and filtration integrated desander

A technology for cyclone filtration and desander, which is applied in the fields of production fluid, wellbore/well components, combustion engine, etc., can solve the problems of high installation accuracy, high manufacturing cost of desander, and reduced ventilation, etc. Extend the use and cleaning cycle, reduce installation and commissioning time, and reduce the effect of stress concentration

Pending Publication Date: 2022-08-05
SICHUAN HUAYU PETROLEUM DRILLING & PRODION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing desander filter element is easily blocked by sand and gravel, resulting in reduced air flow, time-consuming and labor-intensive replacement of the filter element, and increased costs
On the other hand, when the existing desander is assembled, it requires high installation accuracy, especially in the installation process of the filter element, it takes a lot of time to carry out minor adjustments, and the high installation accuracy also leads to high processing accuracy requirements. This in turn results in high manufacturing costs for the desander

Method used

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  • Rotational flow and filtration integrated desander
  • Rotational flow and filtration integrated desander
  • Rotational flow and filtration integrated desander

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , this embodiment discloses a cyclone filter integrated desander, including a sleeve 1, the top of the sleeve 1 is installed with a quick-opening blind plate 2, the lower end of the sleeve 1 is installed with a lower head 9, the sleeve The cylinder 1 is provided with an air inlet 101 , an air outlet 102 and a recoil port 103 . The sleeve 1 is provided with a swirl sleeve 3 and a filter element 4 that are connected end to end, and the swirl sleeve 3 is provided with a swirl structure that makes the incoming gas swirl downward; the outer wall of the swirl sleeve 3 is connected to the There is an annular air inlet cavity 7 between the sleeve 1, an annular air outlet cavity 8 between the filter element 4 and the inner wall of the sleeve 1, the annular air inlet cavity 7 and the annular air outlet cavity 8 are sealed, and the air inlet 101 It communicates with the annular air inlet cavity 7 , the air outlet 102 and the recoil opening 103 communicate with the an...

Embodiment 2

[0036] This embodiment discloses a cyclone filter integrated desander, which is different from Embodiment 1 in that, see Figure 6-7 , the sealing mechanism of this embodiment is an axial seal, which includes a sealing ring 51 and a conversion sleeve 52, the conversion sleeve 52 is connected between the filter element 4 and the swirl sleeve 3, and the sealing ring 51 is connected to the Between the conversion sleeve 52 and the inner wall of the sleeve 1 . In addition, in order to reduce stress concentration caused by deformation under high pressure, prevent weld cracking and affect equipment function, stress relief grooves (not shown in the figure) may also be provided on the sealing ring 51 in this embodiment.

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Abstract

The invention discloses a rotational flow and filtration integrated desander which comprises a sleeve, a quick-opening blind plate is mounted at the top end of the sleeve, a lower end socket is mounted at the lower end of the sleeve, an air inlet, an air outlet and a back-flushing opening are formed in the sleeve, a rotational flow sleeve and a filter element which are connected end to end are arranged in the sleeve, and a rotational flow structure enabling entering air to flow downwards in a rotational flow mode is arranged on the rotational flow sleeve; an annular air inlet cavity is formed between the outer wall of the rotational flow sleeve and the sleeve, an annular air outlet cavity is formed between the filter element and the inner wall of the sleeve, the annular air inlet cavity and the annular air outlet cavity are sealed, the air inlet is communicated with the annular air inlet cavity, the air outlet and the backflushing opening are communicated with the annular air outlet cavity, and the filter element and the middle of the rotational flow sleeve jointly form a rotational flow channel. The rotational flow sleeve enables rotational flow to be formed between the air inlet and the air outlet, sand grains can be separated, rotational flow gas can sweep the inner wall of the filter element with sand, filtered and adsorbed sand grains are removed, the filter element is continuously cleaned through gas flowing, and the use and cleaning period of the filter element is prolonged. The product is convenient to install, and the installation and debugging time is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of shale natural gas desander equipment, in particular to a cyclone filter integrated desander. Background technique [0002] The existing desander filter element is easily blocked by grit, resulting in reduced ventilation, time-consuming and labor-intensive replacement of the filter element, and an increase in cost. On the other hand, when the existing desander is assembled, it requires high installation accuracy, especially during the installation of the filter element, it takes a lot of time to perform micro debugging, and the high installation accuracy also leads to high requirements for machining accuracy. This in turn leads to high manufacturing costs for the desander. Therefore, it is necessary to design a desander which is not easy to block the filter element and is easy and quick to install. SUMMARY OF THE INVENTION [0003] The present invention provides a cyclone filter integrated desander to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00E21B43/08E21B41/00
CPCE21B43/006E21B43/086E21B41/00Y02T10/12
Inventor 梅宗清杨宇平黄帅李勇
Owner SICHUAN HUAYU PETROLEUM DRILLING & PRODION EQUIP
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