A packed natural gas cryogenic separator

By installing rotatable scrapers and a filtration mechanism inside the natural gas cryogenic separator tank, the problem of liquid adhering to the inner wall of the tank and being difficult to clean has been solved, achieving efficient cleaning and secondary utilization of resources.

CN224313467UActive Publication Date: 2026-06-02SICHUAN HUAQI QINGYUAN TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HUAQI QINGYUAN TECH CO LTD
Filing Date
2025-04-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing cryogenic natural gas separators, during the liquid-gas separation process, liquid tends to adhere to the inner wall of the tank and is difficult to clean, especially when the liquid contains impurities.

Method used

The tank is equipped with a rotatable scraper inside. A tool drives the scraper to rotate and remove liquid and impurities from the inner wall. A filtration mechanism is also provided to filter and reuse the liquid.

Benefits of technology

It achieves efficient cleaning of the inner wall of the tank, reduces manpower consumption, avoids liquid waste, and improves separation efficiency and equipment maintenance convenience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224313467U_ABST
    Figure CN224313467U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of filler type natural gas cryogenic separators, including tank body, inlet, gas outlet, safety valve interface, filler layer and inlet distributor, the inlet is respectively symmetrically set on the sidewall below tank body, and the end portion of inlet located inside tank body is provided with inlet distributor, the safety valve interface is set in the top of tank body, the inside of tank body is provided with the cleaning mechanism for cleaning liquid and impurities adhered to the inner wall of tank body;The utility model is provided with scraping strip inside tank body, when worker washes inside tank body, safety valve interface in the top of tank body is removed, using external five-corner sleeve is sleeved on the outside of upper rotating cylinder, rotating tool, scraping strip is scraped to liquid and impurities adhered to the inner wall of tank body, using external equipment to flush the inner wall of tank body, it can be realized to wash the inner wall of tank body, save time and labor.
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Description

Technical Field

[0001] This utility model relates to the technical field of natural gas separation equipment, specifically a packing-type cryogenic natural gas separator. Background Technology

[0002] A cryogenic natural gas separator is a key piece of equipment used to separate liquid components (water, heavy hydrocarbons, condensate, etc.) from natural gas under cryogenic conditions. Its internal structural design directly affects separation efficiency, pressure drop, and anti-clogging performance.

[0003] A search revealed that in the prior art, publication number CN208878195U discloses a packed-type cryogenic natural gas separator, comprising a tank body, an inlet, an inlet distributor, a packing layer, a mist-catching mesh, and a blade structure arranged sequentially above the inlet distributor, a downcomer connected to the bottom of the blade structure, and a natural gas outlet at the blade structure. The advantages of this utility model are: simple structure, low cost, and small pressure drop.

[0004] However, when existing cryogenic natural gas separators separate natural gas into liquid and gas, the liquid adheres to the inner wall of the tank. The liquid produced during liquid-gas separation contains impurities that easily adhere to the inner wall of the tank, making it inconvenient for workers to clean the inner wall of the tank. Therefore, a packing-type cryogenic natural gas separator is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a packing-type cryogenic natural gas separator, which solves the problems mentioned in the background art by setting a rotatable scraper inside the tank, with the outer end of the scraper slidingly connected to the inner wall of the tank. Workers use tools to drive the scraper at the bottom of the upper rotating drum to rotate inside the tank.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A packing-type cryogenic natural gas separator,

[0008] The device includes a tank, an inlet, a gas outlet, a safety valve interface, a packing layer, and an inlet distributor. The inlets are symmetrically arranged on the side wall below the tank, and an inlet distributor is provided at the end of the inlet located inside the tank. A packing layer is provided above the inlet distributor inside the tank. A gas outlet is provided through the side wall above the tank. The safety valve interface is located at the top of the tank.

[0009] The tank is equipped with a cleaning mechanism inside for cleaning liquids and impurities adhering to the inner wall of the tank.

[0010] The bottom of the tank is also equipped with a filtration mechanism for filtering the separated liquid.

[0011] Preferably, the cleaning mechanism includes a scraper, the top center of which is fixedly disposed with the upper rotating drum, the scraper is fixedly installed on a connecting rod, the bottom end of which is fixedly installed with the lower rotating drum, and the end of the side wall of the scraper is slidably connected to the inner wall of the tank.

[0012] Preferably, the cleaning mechanism further includes a notch and a slot. The notch is located at the top of the tank, and the safety valve interface is located above the notch. The inner wall of the notch is rotatably connected to the outer arc surface of the upper rotating cylinder. The slot is located on the inner bottom surface of the tank, and the inner wall of the slot is rotatably connected to the outer arc surface of the lower rotating cylinder.

[0013] Preferably, the outer arc surface of the lower rotating cylinder is symmetrically provided with protrusions, and the inner wall of the slot is provided with a rotating groove, and the protrusions are slidably disposed inside the rotating groove.

[0014] Preferably, the top cross-section of the upper rotating cylinder is pentagonal, and the outer arc surface of the top of the upper rotating cylinder does not contact the inner wall of the recess.

[0015] Preferably, the filtration mechanism includes a filter, which is placed inside the bottom support leg of the tank, and the water inlet of the filter is in contact with the drain outlet opened at the bottom of the tank;

[0016] The filter is provided with a positioning component on its outer side for positioning the filter.

[0017] Preferably, the positioning component includes a break, which is formed on the side wall of one of the legs at the bottom of the tank. The leg has a storage groove on the surface of the break, and a pull-out movable plate is provided inside the storage groove. The movable plate is bolted to the leg above the break.

[0018] Preferably, limit blocks are provided on both side walls at the bottom of the movable plate, and limit grooves are symmetrically opened on both inner walls of the storage groove. The limit blocks are slidably disposed inside the limit grooves, and the top of the limit grooves is not connected to the break.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention features a scraper inside the tank. When workers clean the inside of the tank, they remove the safety valve interface at the top of the tank, place an external pentagonal sleeve over the outside of the upper rotating cylinder, rotate the tool, and the scraper scrapes off the liquid and impurities adhering to the inner wall of the tank. The inner wall of the tank is then rinsed using external equipment, thus achieving the cleaning of the inner wall of the tank in a time-saving and labor-saving manner. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall frontal perspective structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0024] Figure 4 This is a schematic diagram of the disassembled scraper structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the filter mechanism of this utility model;

[0026] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0027] In the diagram: 1. Tank body; 2. Inlet; 3. Gas outlet; 4. Safety valve interface; 5. Filter mechanism; 6. Packing layer; 7. Scraper; 8. Upper rotating drum; 9. Lower rotating drum; 10. Protrusion; 11. Connecting rod; 12. Notch; 13. Slot; 14. Rotary groove; 15. Inlet distributor; 16. Filter; 17. Break; 18. Collection groove; 19. Movable plate; 20. Limiting groove; 21. Limiting block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 This utility model provides a technical solution:

[0030] A packing-type cryogenic natural gas separator,

[0031] It includes a tank body 1, an inlet 2, a gas outlet 3, a safety valve interface 4, a packing layer 6, and an inlet distributor 15. The inlets 2 are symmetrically arranged on the side wall below the tank body 1, and the inlet distributor 15 is provided at the end of the inlet 2 inside the tank body 1. The packing layer 6 is provided above the inlet distributor 15 inside the tank body 1. The gas outlet 3 is provided through the side wall above the tank body 1. The safety valve interface 4 is located at the top of the tank body 1.

[0032] The tank 1 is equipped with a cleaning mechanism for cleaning liquids and impurities adhering to the inner wall of the tank 1.

[0033] The bottom of the tank 1 is also equipped with a filter mechanism 5 for filtering the separated liquid.

[0034] The cleaning mechanism includes a scraper 7, the top center of which is fixedly mounted to the upper rotating drum 8. The scraper 7 is fixedly mounted to the connecting rod 11, and the bottom end of the connecting rod 11 is fixedly mounted to the lower rotating drum 9. The end of the side wall of the scraper 7 is slidably connected to the inner wall of the tank 1.

[0035] The cleaning mechanism also includes a notch 12 and a slot 13. The notch 12 is located at the top of the tank 1, and the safety valve interface 4 is located above the notch 12. The inner wall of the notch 12 is rotatably connected to the outer arc surface of the upper rotating cylinder 8. The slot 13 is located on the inner bottom surface of the tank 1, and the inner wall of the slot 13 is rotatably connected to the outer arc surface of the lower rotating cylinder 9.

[0036] A scraper 7 is installed inside the tank body 1, and an upper rotating cylinder 8 is installed at the top of the middle part of the scraper 7. The bottom end of the scraper 7 is connected to the connecting rod 11, and the bottom end of the connecting rod 11 is fixedly installed to the lower rotating cylinder 9. The side wall end of the scraper 7 is slidably connected to the inner wall of the tank body 1, so that the liquid adhering to the inner wall of the tank body 1 can be scraped off by the scraper 7. When the worker cleans the tank body 1, the upper rotating cylinder 8 is rotated by using a tool, so that the upper rotating cylinder 8 drives the scraper 7 inside the tank body 1 to scrape off the liquid or impurities adhering to the inner wall of the tank body 1. The inner wall of the tank body 1 is rinsed by external equipment to wash off the impurities and discharge them through the drain hole provided at the bottom of the tank body 1. When the worker cleans the tank body 1, the filter mechanism 5 below is removed.

[0037] The outer arc surface of the lower rotating cylinder 9 is symmetrically provided with protrusions 10, and the inner wall of the slot 13 is provided with a rotating groove 14. The protrusions 10 are slidably disposed inside the rotating groove 14. The protrusions 10 are symmetrically provided on the outer arc surface of the lower rotating cylinder 9, and the rotating groove 14 is provided in the middle of the inner wall of the slot 13. The protrusions 10 are slidably disposed inside the rotating groove 14. By sliding the protrusions 10 inside the rotating groove 14, the stability of the scraper 7 when rotating inside the tank 1 is ensured.

[0038] The top cross-section of the upper rotating cylinder 8 is pentagonal, and the outer arc surface of the top of the upper rotating cylinder 8 does not contact the inner wall of the recess 12. At the same time, the top cross-section of the upper rotating cylinder 8 is set to be pentagonal so that workers can put the outer pentagonal sleeve on the outside of the upper rotating cylinder 8 and rotate the tool to drive the scraper 7 to rotate inside the tank 1, and use the scraper 7 to scrape away the liquid and impurities on the inner wall of the tank 1.

[0039] The filtration mechanism 5 includes a filter 16, which is placed inside the bottom support leg of the tank 1. The inlet of the filter 16 is in contact with the drain outlet at the bottom of the tank 1.

[0040] A positioning component for positioning the filter 16 is provided on the outside of the filter 16.

[0041] The positioning component includes a break 17, which is formed on the side wall of one of the legs at the bottom of the tank body 1. A storage groove 18 is formed on the surface of the leg at the break 17. A pull-out movable plate 19 is provided inside the storage groove 18. The movable plate 19 is bolted to the leg above the break 17. Limiting blocks 21 are provided on both sides of the bottom end of the movable plate 19. Limiting grooves 20 are symmetrically formed on both sides of the inner wall of the storage groove 18. The limiting blocks 21 are slidably set inside the limiting grooves 20. The top of the limiting grooves 20 is not connected to the break 17.

[0042] Finally, a detachable filter mechanism 5 is installed below the drain port at the bottom of the tank 1. The filter 16 filters the liquid discharged from the inside of the tank 1 so that the filtered liquid can be reused and water resources can be avoided.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A packed-fill type cryogenic natural gas separator, characterized in that: The tank includes a tank body (1), an inlet (2), a gas outlet (3), a safety valve interface (4), a packing layer (6), and an inlet distributor (15). The inlets (2) are symmetrically arranged on the side wall below the tank body (1), and the inlet distributor (15) is provided at the end of the inlet (2) inside the tank body (1). The packing layer (6) is provided above the inlet distributor (15) inside the tank body (1). The gas outlet (3) is provided through the side wall above the tank body (1). The safety valve interface (4) is located at the top of the tank body (1). The tank (1) is equipped with a cleaning mechanism for cleaning the liquid and impurities adhering to the inner wall of the tank (1); The bottom of the tank (1) is also provided with a filter mechanism (5) for filtering the separated liquid; the cleaning mechanism includes a scraper (7), the top middle of the scraper (7) is fixedly set with the upper rotating cylinder (8), the scraper (7) is fixedly installed on the connecting rod (11), the bottom end of the connecting rod (11) is fixedly installed with the lower rotating cylinder (9), and the end of the side wall of the scraper (7) is slidably connected with the inner wall of the tank (1); the cleaning mechanism also includes a notch (12) and a slot (13), the notch (12) is opened at the top of the tank (1), the safety valve interface (4) is set above the notch (12), the inner wall of the notch (12) is rotatably set with the outer arc surface of the upper rotating cylinder (8), the slot (13) is opened on the inner bottom surface of the tank (1), and the inner wall of the slot (13) is rotatably set with the outer arc surface of the lower rotating cylinder (9).

2. A packed-fill type cryogenic natural gas separator according to claim 1, characterized in that: The lower rotating cylinder (9) has a symmetrically arranged protrusion (10) on its outer arc surface, and a rotating groove (14) is opened in the middle of the inner wall of the slot (13). The protrusion (10) is slidably arranged inside the rotating groove (14).

3. A packed-fill type cryogenic natural gas separator according to claim 2, characterized in that: The top cross section of the upper rotating cylinder (8) is pentagonal, and the outer arc surface of the top of the upper rotating cylinder (8) does not contact the inner wall of the notch (12).

4. A packed-fill type cryogenic natural gas separator according to claim 1, characterized in that: The filtration mechanism (5) includes a filter (16), which is placed inside the bottom support leg of the tank (1), and the inlet of the filter (16) is in contact with the drain outlet at the bottom of the tank (1). The filter (16) is provided with a positioning component on its outer side for positioning the filter (16).

5. A packed-fill type cryogenic natural gas separator according to claim 4, characterized in that: The positioning component includes a break (17), which is opened on the side wall of one of the legs at the bottom of the tank (1). The leg is provided with a storage groove (18) on the surface of the break (17). The storage groove (18) is provided with a pull-out movable plate (19). The movable plate (19) is bolted to the leg above the break (17).

6. A packing-type cryogenic natural gas separator according to claim 5, characterized in that: Limiting blocks (21) are provided on both sides of the bottom end of the movable plate (19). Limiting grooves (20) are symmetrically opened on both sides of the inner wall of the storage groove (18). The limiting blocks (21) are slidably disposed inside the limiting grooves (20). The top of the limiting grooves (20) and the break (17) are not connected.