Shale gas separator

Abstract

The utility model provides a shale gas separator which comprises a separation tank body, a gas inlet and a gas outlet, the gas inlet is located in the middle area of the separation tank body, the gas outlet is located in the top area of the separation tank body, and a drain outlet is formed in the bottom of the separation tank body; the cyclone is fixed in the separation tank body, and the cyclone is communicated with the air inlet; the liquid guide cover is fixed below the cyclone, the liquid guide cover is conical, and a plurality of liquid guide holes are formed in the outer side of the liquid guide cover; the sand setting and flow guiding device is fixed below the liquid guiding cover, a liquid discharging pipe is fixed in the sand setting and flow guiding device, an inlet of the liquid discharging pipe is located in the sand setting and flow guiding device, and an outlet of the liquid discharging pipe is located on the side face of the separation tank body; the demister further comprises a blade demisting assembly, and the blade demisting assembly is fixed to the upper portion of the hydrocyclone. The shale gas separator is good in separation effect, shale sand and liquid can be separately separated and discharged, a liquid discharging valve on the liquid discharging pipe is prevented from being rapidly abraded, and the service life of the liquid discharging valve is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shale gas separation, in particular to a shale gas separator. Background Art

[0002] In the development and utilization of energy resources today, shale gas, as an important unconventional natural gas resource, has received increasing attention for its mining and separation technology. However, traditional shale gas separators have some problems in actual operation, one of which is the rapid wear of the drain valve, which affects the service life and stability of the equipment.

[0003] The drain valve in a traditional shale gas separator is usually responsible for draining the shale sand and liquid after separation. However, due to the large amount of impurity particles contained in shale gas, these particles will cause friction and wear on the drain valve, resulting in a significant shortening of the drain valve's life, increasing equipment maintenance costs and downtime. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a shale gas separator, which has good separation effect and can separate and discharge shale sand and liquid separately, avoiding rapid wear of the drain valve on the drain pipe and effectively extending the life of the drain valve.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a shale gas separator, comprising:

[0006] A separation tank body, the separation tank body having an air inlet and an air outlet, the air inlet is located in the middle area of ​​the separation tank body, the air outlet is located in the top area of ​​the separation tank body, and the bottom of the separation tank body has a sewage outlet;

[0007] A cyclone, which is fixed in the separation tank body and is connected to the air inlet;

[0008] A liquid guide cover, which is fixed below the cyclone and has a conical shape and a plurality of liquid guide holes on its outer side;

[0009] A sand settling and guiding device, which is fixed below the liquid guiding cover, and a liquid drain pipe is fixed in the sand settling and guiding device, the inlet of the liquid drain pipe is located in the sand settling and guiding device, and the outlet thereof is located on the side of the separation tank body;

[0010] It also includes a blade demister assembly, which is fixed above the cyclone.

[0011] Furthermore, the inclination angle of the cover surface of the liquid-conducting cover is 15-45 degrees.

[0012] Furthermore, the liquid guiding holes on the liquid guiding cover are semicircular holes, and the liquid guiding holes are evenly arranged in a ring shape.

[0013] Furthermore, the sand settling and diversion device comprises a liquid guiding cylinder, a plurality of partition chambers are arranged in the liquid guiding cylinder, and the inlet of the liquid discharge pipe is located above the partition chamber.

[0014] Furthermore, the partition chamber is formed by splicing or welding a plurality of staggered partition plates.

[0015] Furthermore, a sand guide cone is fixed above the sewage outlet, and the top of the sand guide cone is sealed and connected to the separation tank body.

[0016] Furthermore, the blade defogger assembly includes a bagless blade separator and a single-bag blade separator. The single-bag blade separator is connected to a downcomer, which passes through the bagless blade separator and has its end above the sand guide cone.

[0017] Furthermore, the height of the partition bin is 0.5-1.5m.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The shale gas separator has good separation effect and can separate and discharge shale sand and liquid separately, avoiding rapid wear of the drain valve on the drain pipe and effectively extending the life of the drain valve;

[0020] 2. The liquid guide cover is set to be conical, so that the liquid can flow from the top of the liquid guide cover to the outside and finally be discharged through the semicircular hole. After being discharged, the shale sand directly enters the sand guide cone, and the liquid is directly discharged through the sand settling diversion device to achieve the separation and discharge of the two;

[0021] 3. Shale sand can be discharged directly from the sewage outlet through the diversion function of the sand guide cone, and will not be deposited at the bottom of the separation tank, effectively ensuring the smooth flow of the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a three-dimensional diagram of the liquid-conducting cover of the utility model;

[0024] Figure 3 This is a structural diagram of the sand settling and diversion device of the utility model;

[0025] Figure 4 It is a blade structure diagram of a single-bag blade separator of the utility model;

[0026] Figure 5It is a blade structure diagram of the bagless blade separator of the utility model;

[0027] In the figure: 1, separation tank body; 2, air inlet; 3, air outlet; 4, sewage outlet; 5, cyclone; 6, liquid guide cover; 7, liquid guide cylinder; 8, liquid guide hole; 9, separation chamber; 10, separation plate; 11, sand guide cone; 12, bagless blade separator; 13, single bag blade separator; 14, downcomer; 15, drain valve; 16, drain pipe; 17, bag mouth plate; 18, connecting plate; DETAILED DESCRIPTION

[0028] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-5 As shown, the embodiment of the utility model provides a shale gas separator, comprising:

[0030] A separation tank body 1, wherein the separation tank body 1 has an air inlet 2 and an air outlet 3, wherein the air inlet 2 is located in the middle area of ​​the separation tank body 1, and the air outlet 3 is located in the top area of ​​the separation tank body 1, and the separation tank body 1 has a sewage outlet 4 at the bottom;

[0031] a cyclone 5, the cyclone 5 is fixed in the separation tank body 1, and the cyclone 5 is connected to the air inlet 2;

[0032] A liquid guide cover 6, which is fixed below the cyclone 5, and is conical in shape, with a plurality of liquid guide holes 8 on its outer side;

[0033] A sand settling guide device, which is fixed below the liquid guide cover 6, and a liquid drain pipe 16 is fixed in the sand settling guide device, the inlet of the liquid drain pipe 16 is located in the sand settling guide device, and the outlet thereof is located on the side of the separation tank body 1;

[0034] It also includes a blade demister assembly, which is fixed above the cyclone 5.

[0035] The process of the utility model when in use is as follows: the shale gas after mining enters from the air inlet 2, and then is preliminarily separated by the cyclone 5. The heavier liquid and shale sand are discharged downward, first through the guide cover. Since the guide cover is conical, the liquid and shale sand will be discharged along the inclined surface of the liquid guide cover 6, and finally discharged from the liquid guide hole 8. Finally, the shale sand accumulates in the anti-sedimentation cone, and the liquid is above the shale sand. As the liquid gradually increases, it will enter the sand settling diversion device. Finally, the liquid flows from the sand settling diversion device into the drain pipe and is discharged from the drain pipe (at this time, it will only contain a very small amount of sediment, which will basically not affect the drain valve). The sediment is discharged from the sewage pipe, realizing two sewage discharge paths, and extending the life of the drain valve of the drainage pipe.

[0036] Further, the cover surface of the liquid-conducting cover 6 has an inclination angle of 15-45 degrees. Specifically, the inclined surface of the liquid-conducting cover 6 is set to 15-45 degrees, which can achieve a better effect of guiding liquid and sand.

[0037] Furthermore, the liquid guide holes 8 on the liquid guide cover 6 are semicircular holes, and the liquid guide holes 8 are evenly arranged in a ring shape. The liquid guide holes 8 are semicircular holes, which are more convenient to process. In addition, the edges of the liquid guide cover 6 can be spliced ​​or welded to the separation tank body 1.

[0038] Further, the sand settling and diversion device comprises a liquid guide tube 7, in which a plurality of partition chambers 9 are provided, and the inlet of the liquid discharge pipe is located above the partition chamber 9. Specifically, the sand settling and diversion device comprises a liquid guide tube 7, in which a plurality of partition chambers 9 are provided, so that the turbulence in the liquid can be effectively slowed down, the foam caused by the turbulence of the liquid can be reduced, and the liquid discharge can be more stable.

[0039] Further, the partition chamber 9 is formed by splicing or welding a plurality of staggered partition plates 10. Specifically, the partition chamber 9 is formed by splicing or welding a plurality of staggered partition plates, so that a plurality of partition chambers 9 can be formed quickly.

[0040] Furthermore, a sand guide cone 11 is fixed above the sewage outlet 4, and the top of the sand guide cone 11 is sealed and connected to the separation tank body 1. Through the arrangement of the sand guide cone 11, shale sand can be directly gathered to the sewage outlet 4, which is convenient for discharge.

[0041] Furthermore, the blade defogger assembly includes a bagless blade separator 12 and a single-bag blade separator 13, each of which is connected to a downcomer 14, and the end of the downcomer 14 is located above the sand guide cone 11. Specifically, the bagless blade separator 12 is an ordinary blade separator, and its main body is composed of a plurality of bent connecting plates 18, such as the blade separator disclosed by the applicant in patent number CN 216571676 U, and the single-bag blade separator has a branched bag plate 17 on the connecting plate, and its defogger effect is better, and the single-bag blade separator is connected to a downcomer 14 to effectively discharge the liquid in the shale gas.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A shale gas separator, characterized in that: include: A separation tank body, the separation tank body having an air inlet and an air outlet, the air inlet is located in the middle area of ​​the separation tank body, the air outlet is located in the top area of ​​the separation tank body, and the bottom of the separation tank body has a sewage outlet; A cyclone, which is fixed in the separation tank body and is connected to the air inlet; A liquid guide cover, which is fixed below the cyclone and has a conical shape and a plurality of liquid guide holes on its outer side; A sand settling and guiding device, which is fixed below the liquid guiding cover, and a liquid drain pipe is fixed in the sand settling and guiding device, the inlet of the liquid drain pipe is located in the sand settling and guiding device, and the outlet thereof is located on the side of the separation tank body; It also includes a blade demister assembly, which is fixed above the cyclone.

2. A shale gas separator according to claim 1, characterized in that: The inclination angle of the cover surface of the liquid-conducting cover is 15-45 degrees.

3. A shale gas separator according to claim 2, characterized in that: The liquid guiding holes on the liquid guiding cover are semicircular holes, and the liquid guiding holes are evenly arranged in a ring shape.

4. A shale gas separator according to claim 3, characterized in that: The sand settling and diversion device comprises a liquid guiding cylinder, a plurality of partition chambers are arranged in the liquid guiding cylinder, and the inlet of the liquid discharge pipe is located above the partition chamber.

5. A shale gas separator according to claim 4, characterized in that: The partition chamber is formed by splicing or welding a plurality of partition plates arranged in a staggered manner.

6. A shale gas separator according to claim 5, characterized in that: A sand guide cone is fixed above the sewage outlet, and the top of the sand guide cone is sealed and connected to the separation tank body.

7. A shale gas separator according to claim 6, characterized in that: The blade defogger assembly comprises a bagless blade separator and a single-bag blade separator. The single-bag blade separator is connected with a downcomer, which passes through the bagless blade separator and has its end located above the sand guide cone.

8. A shale gas separator according to claim 7, characterized in that: The height of the partition bin is 0.5-1.5m.

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