Gas-liquid separator for gas generator set

Abstract

The utility model relates to the technical field of gas power generation auxiliary equipment, in particular to a gas-liquid separator for a gas generator set, which comprises a separator main body, a mixed gas inlet and a gas outlet, the separator main body is provided with an inner cavity, the inner cavity is divided into a pre-separation cavity and a main separation cavity, and a communication port is arranged between the pre-separation cavity and the main separation cavity; a pre-separation cavity drain opening is formed in the bottom of the pre-separation cavity; a layered channel structure is arranged in the main separation cavity, hydrophilic areas and hydrophobic areas are distributed on the surface of the layered channel structure in a staggered mode, and a main separation cavity drain opening is formed in the bottom in the main separation cavity. A gas-liquid separation mode is improved, firstly, a part of water is separated in advance to reduce the pressure of subsequent gas-liquid separation, then a layered channel structure is used for replacing a filter element to capture water drops, and the surface of the layered channel structure is improved to improve the water capturing capacity, so that the maintenance work of replacing the filter element is avoided, and the resistance of the separator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas power generation auxiliary equipment technical field, specifically, it relates to a gas liquid separator for gas power generating set. BACKGROUND

[0002] Oilfield associated gas contains a large amount of water, which cannot directly enter the gas power generating set and needs to be dewatered first. The current dewatering measures mostly adopt the filtering mode, such as patent document CN208493680U-gas liquid separator, which is provided with a filter device in the separator column body and adopts a gas filter element to separate water and gas.

[0003] Although this dewatering mode can filter efficiently, the filter element needs to be replaced frequently, which wastes manpower and material resources and has great resistance. UTILITY MODEL CONTENT

[0004] The main purpose of the present application is to provide a gas liquid separator for gas power generating set, which improves the gas liquid separation mode, first separates a part of water to reduce the pressure of subsequent gas liquid separation, then uses a layered channel structure instead of a filter element to capture water droplets and improves the surface of the layered channel structure to improve the water capture capacity, thereby avoiding the maintenance work of replacing the filter element and reducing the resistance of the separator.

[0005] The specific improvements are as follows.

[0006] A gas liquid separator for gas power generating set, comprising a separator main body, a mixed gas inlet and a fuel gas outlet, the separator main body has an inner cavity, characterized in that,

[0007] The inner cavity is divided into a pre-separation chamber and a main separation chamber, and the pre-separation chamber and the main separation chamber have a communication port; the pre-separation chamber is provided with a pre-separation chamber water outlet at the bottom;

[0008] The main separation chamber is provided with a layered channel structure, the surface of the layered channel structure is staggered with hydrophilic regions and hydrophobic regions, and the main separation chamber is provided with a main separation chamber water outlet at the bottom.

[0009] Further improvement, the pre-separation chamber is a pipeline cavity, and the cavity wall is made of non-insulating material.

[0010] In this way, on the one hand, the environment is used to cool the gas and water vapor mixture in the pre-separation chamber, and a part of the water is pre-separated, and this part of the water with high temperature does not participate in the heat exchange of the main separation chamber, which is beneficial to maintaining low temperature in the main separation chamber and improving the separation capacity of the main separation chamber.

[0011] Further improvement, the diameter of the pre-separation chamber is closer to the main separation chamber.

[0012] In this way, the pressure of the mixed gas is increased before entering the main separation chamber.

[0013] Further improvement, the main separation chamber is shaped as a combination of an expanding cavity and a cylinder, and the cavity wall has a heat insulation layer to maintain a low temperature of the main separation chamber relative to the ambient temperature.

[0014] Further improvement, the layered channel structure comprises a plurality of layer plates, and the space between the layer plates forms the layered channel, and the layer plates are staggered with hydrophilic regions and hydrophobic regions, so that the water capturing capacity of the layer plates is improved.

[0015] Further improvement, the layer plates are folded and have leakage holes to allow the water captured by the layer plates to flow out.

[0016] Further improvement, the water outlet of the pre-separation chamber and the water outlet of the main separation chamber are provided with an automatic water drainage structure, so that water is not retained in the pre-separation chamber and the main separation chamber in a large amount, and the resistance is reduced.

[0017] The technical scheme of the present application has the following technical effects:

[0018] By pre-separating a part of water, the pressure of subsequent gas-liquid separation is reduced, then the layered channel structure is used to replace the filter element to capture water droplets, and the surface of the layered channel structure is improved to improve the water capturing capacity. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0020] Figure 1 A front view of the gas-liquid separator for the gas generator set is shown.

[0021] Figure 2 A perspective view of the gas-liquid separator for the gas generator set is shown.

[0022] Figure 3 A structure of the layer plate of the gas-liquid separator for the gas generator set is shown.

[0023] Figure 4 An automatic water drainage structure of the gas-liquid separator for the gas generator set is shown.

[0024] Among them, the above drawings include the following reference signs:

[0025] 1. pre-separation chamber;

[0026] 11. pre-separation chamber drain;

[0027] 12. mixed gas inlet;

[0028] 2. main separation chamber;

[0029] 3. communication port;

[0030] 21. main separation chamber drain;

[0031] 22. layered channel structure;

[0032] 23. layer plate;

[0033] 24. leak hole;

[0034] 25. gas outlet;

[0035] 41. float;

[0036] 42. valve plate;

[0037] 43. support rod in the middle of the connecting rod;

[0038] 44. limit is arranged at the bottom of the connecting rod. DETAILED DESCRIPTION

[0039] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] The overall structure of the gas-liquid separator for the gas generator set provided by the utility model is shown as Figures 1-2 The inner cavity of the separator main body becomes the pre-separation chamber 1 and the main separation chamber 2, the pre-separation chamber 1 and the main separation chamber 2 have the communication port 3 and install the J-T valve between them. The pre-separation chamber 1 is provided with the pre-separation chamber drain 11 at the bottom; the main separation chamber 2 is provided with the main separation chamber drain 21 at the inner bottom. The layered channel structure 22 is arranged in the main separation chamber, and the layered channel of the layered channel structure 22 is formed by the space between the layer plates 23. The layer plates are coated with a hydrophobic coating and are provided with hydrophilic spots.

[0041] The pre-separation chamber 1 is a pipeline cavity, and the cavity wall is made of non-insulating material. The new cavity wall in the main separation chamber 2 is made of insulating material.

[0042] In operation, high temperature and high pressure gas and water vapor mixture enters from the mixture inlet 12, and is cooled by heat exchange with the outside environment in the pipe cavity of the pre-separation cavity 1, and a portion of the water is pre-separated. In the pre-separation cavity 1, the temperature is mainly reduced by heat exchange, and the temperature is reduced to the temperature of the outside environment. The pre-separated water is at a high temperature, and does not participate in the heat exchange of the main separation cavity, which is conducive to maintaining a low temperature in the main separation cavity, thereby improving the separation capacity.

[0043] In the main separation cavity, the space is greatly increased, and the temperature is further reduced to a temperature much lower than the outside temperature under the Joule-Thomson effect, and the water is further separated. The remaining gas is discharged from the gas outlet 25 and enters the gas engine.

[0044] Because a portion of the water is pre-separated by the pre-separation cavity, the separation pressure of the main separation cavity is reduced, and the layered channel structure in the main separation cavity uses a layer plate to avoid frequent replacement of the filter element. The layered channel structure is coated with a hydrophobic coating and has hydrophilic spots, which is conducive to improving the water separation capacity to ensure that the separation capacity can reach the level of using a filter element.

[0045] As an improvement, the diameter of the pre-separation cavity 1 is closer to the main separation cavity. This is to increase the pressure of the mixture before it enters the main separation cavity.

[0046] As an improvement, the main separation cavity 2 is in the shape of an expanded cavity combined with a cylinder, which is conducive to the Joule-Thomson effect and the space required for the process of separating water.

[0047] As shown in Figure 3 , the layer plate 23 is curved and has a leak hole 24. The layer plate is coated with a hydrophobic coating and has hydrophilic spots. The hydrophilic spots are hydrophilic regions surrounded by hydrophobic regions, which provide water separation capacity. The hydrophilic spots are very small (less than 1 mm) and are not shown in the figure. The support structure of the layer plate is not shown in the figure, and the frame structure of the main separation cavity is not shown.

[0048] The pre-separation cavity drain 11 and the main separation cavity drain 21 are both provided with an automatic drain structure, which uses a combination of a float and a valve plate. As shown in Figure 4 , the automatic drain structure is installed on the bottom wall of the cavity and includes a float 41 connected to a valve plate 42 through a connecting rod. The valve plate 42 can block the drain when the float falls and open the drain when the float rises. The connecting rod has a support rod 43 in the middle, which can slide in the drain to keep the float-valve plate structure stable. The connecting rod has a limit 44 at the bottom to prevent the float-valve plate structure from coming out. When the water collects to a certain height, the float 41 rises to drive the valve plate 42 to rise and make the water flow out, avoiding the accumulation of a large amount of water.

[0049] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A gas-liquid separator for a gas generator set, comprising a separator body, a mixed gas inlet, and a gas outlet, wherein the separator body has an inner cavity, characterized in that, The inner cavity is divided into a pre-separation cavity and a main separation cavity, and there is a communication port between the pre-separation cavity and the main separation cavity; The bottom of the pre-separation chamber is provided with a pre-separation chamber drain outlet; The main separation chamber is provided with a layered channel structure, and the surface of the layered channel structure is alternately distributed with hydrophilic and hydrophobic regions. The bottom of the main separation chamber is provided with a main separation chamber drain.

2. The gas-liquid separator for a gas generator set according to claim 1, characterized in that, The pre-separation chamber is a pipe chamber, and its wall is made of non-insulating material.

3. The gas-liquid separator for a gas generator set according to claim 2, characterized in that, The diameter of the pre-separation cavity is smaller as it gets closer to the main separation cavity.

4. The gas-liquid separator for a gas generator set according to claim 1, characterized in that, The main separation chamber is a combination of an expanded cavity and a cylindrical body, and its cavity wall has a heat insulation layer.

5. The gas-liquid separator for a gas generator set according to claim 1, characterized in that, The layered channel structure includes several layers, and the space between the layers forms the layered channel. The layers are staggered with hydrophilic and hydrophobic regions.

6. The gas-liquid separator for a gas generator set according to claim 5, characterized in that, The layer is folded and has perforations.

7. The gas-liquid separator for a gas generator set according to claim 1, characterized in that, The pre-separation chamber drain and the main separation chamber drain are equipped with automatic drainage structures.

Images