Gas-liquid separation device of compressed natural gas (CNG) filling hydraulic skid-mounted bleeder

Abstract

The utility model provides a gas-liquid separation device for a compressed natural gas (CNG) filling hydraulic skid-mounted bleeder, which comprises a gas-liquid separation tank, a conveying port is communicated with an exhaust port through a filling hydraulic skid-mounted hydraulic oil tank at the lower part, and a baffle is arranged in the gas-liquid separation tank. According to the CNG filling hydraulic skid-mounted bleeder gas-liquid separation device, the gas-liquid separation effect is improved through the multiple baffles and the multiple open holes, when hydraulic oil returns to skid-mounted equipment and enters a hydraulic oil tank, a gas-liquid mixture can be discharged through the bleeder, after a separator is additionally arranged, discharged gas and liquid enter the separator, and due to different physical properties of gas and liquid, the gas-liquid separation effect is greatly improved. The gas and the liquid are naturally separated, the gas part continues to diffuse, and the liquid part is collected and returns to the hydraulic oil tank, so that four groups of baffles are arranged in the gas-liquid separation tank to enhance the separation of the gas-liquid mixture, the purity and the high efficiency of the diffusion process are ensured, the working efficiency of gas-liquid separation is also improved, and hydraulic oil is saved; and meanwhile, the device has the advantages that the occupied area is small, and workers can conveniently install and maintain the device.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation, in particular to a CNG gas-filling hydraulic skid-mounted release pipe gas-liquid separation device. Background Art

[0002] With the improvement of environmental awareness and the popularization of clean energy, CNG, as an efficient and clean energy form, has been widely used in the fields of automobiles, public transportation, etc. As a key facility for supplying this energy, the safety and operating efficiency of CNG filling stations have become the focus of attention. During the CNG liquid return process, a certain amount of gas-liquid mixture is often produced due to the compression of the gas. If these gas-liquid mixtures enter the release system together, it may cause equipment damage, increased hydraulic oil loss, reduced liquid return efficiency, and even safety hazards. Therefore, how to effectively handle these gas-liquid mixtures has become an important issue facing CNG filling stations.

[0003] CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device is one of the key equipment in CNG (compressed natural gas) filling stations. It is mainly used to separate liquid from the gas and liquid mixture generated during the CNG filling and liquid return process to ensure the purity and efficiency of the liquid return process.

[0004] There is a gas-liquid separation process in the chemical industry. The gas-liquid separator is a device installed at the inlet and outlet of the gas compressor for gas-liquid separation. There are many structures of gas-liquid separators, including gravity sedimentation, baffle separation, centrifugal separation and wire mesh separation, but the gas-liquid separation devices currently used on the market still have some shortcomings that need to be improved; most of the existing gas-liquid separators are not only bulky and occupy a lot of space, but also have low separation efficiency. When using the gas-liquid separation device, it is not convenient to move and transport it, and the separation effect is poor, resulting in the inability to ensure its purity and efficient operation during the gas filling process. Utility Model Content

[0005] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a CNG refueling hydraulic skid-mounted release pipe gas-liquid separation device, including a gas-liquid separation tank, the upper and lower ends of which are equipped with fixed flanges, the fixed ring is circular in shape, and the inner wall above the fixed ring is provided with multiple through holes, and a conveying port is provided above the fixed flange, and the conveying port is connected with the liquid outlet through the lower gas-liquid separation tank, and a baffle is provided inside the gas-liquid separation tank, and the baffle is inclined in shape, and an opening is provided inside the baffle.

[0006] Preferably, the fixing ring is symmetrically installed at the upper and lower ends of the gas-liquid separation tank.

[0007] Preferably, the delivery port is opened on the inner wall above the fixed flange, and the liquid outlet is opened at the lower end of the gas-liquid separation tank.

[0008] Preferably, the baffles are installed on the inner wall of the gas-liquid separation tank, and the baffles are in groups of four.

[0009] Preferably, the opening is formed on the inner wall of the baffle, and a plurality of the openings are provided. Beneficial Effects

[0010] The CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device delivers the gas to be separated to the delivery port, and the gas and liquid entering the delivery port will enter the gas-liquid separation tank. At this time, the gas and liquid entering the gas-liquid separation tank will contact the first group of baffles arranged in the gas-liquid separation tank, and flow downward through the openings arranged in the baffles, so that the gas leaks and exhausts through the openings. The four groups of baffles arranged in the gas-liquid separation tank are in a stepped shape, so that the gas-liquid contact area with the baffles and the openings is increased in the gas-liquid separation tank, and the gas-liquid contact area is increased by the multiple baffles and openings. Liquid separation effect: when CNG enters the discharge pipe through the gas filling hydraulic skid-mounted equipment, the gas-liquid mixture will first enter the gas-liquid separator. In the separator, due to the different physical properties of gas and liquid, they will naturally separate. The gas part continues to flow to the discharge system, while the liquid part is collected and discharged. Therefore, by setting four sets of baffles in the gas-liquid separation tank, the separation of the gas-liquid mixture is enhanced to ensure the purity and efficiency of the gas filling process, and also improve the working efficiency of gas-liquid separation. At the same time, the device has the advantages of small footprint and easy movement, installation and maintenance by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 This is a three-dimensional structural diagram of the CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device of the utility model;

[0013] Figure 2 This is a front structural diagram of the CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the baffle plate of the utility model from top view.

[0016] In the figure: 1. gas-liquid separation tank; 2. fixing flange; 3. delivery port; 4. liquid outlet; 5. baffle; 6. opening. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0018] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0019] See also Figure 1-4 The CNG filling hydraulic skid-mounted release pipe gas-liquid separation device includes a gas-liquid separation tank 1, the upper and lower ends of the gas-liquid separation tank 1 are equipped with fixing rings 2, the fixing flange 2 is circular, the inner wall above the fixing flange 2 is provided with a plurality of through holes, a delivery port 3 is provided above the fixing ring 2, the delivery port 3 is connected with the liquid outlet 4 through the lower gas-liquid separation tank 1, a baffle 5 is provided inside the gas-liquid separation tank 1, the baffle 5 is inclined, and an opening 6 is provided inside the baffle 5.

[0020] The fixing flanges 2 are symmetrically installed at the upper and lower ends of the gas-liquid separation tank 1 .

[0021] The delivery port 3 is opened on the inner wall above the fixed flange 2 , and the liquid outlet 4 is opened on the lower end of the gas-liquid separation tank 1 .

[0022] The baffles 5 are installed on the inner wall of the gas-liquid separation tank 1 , and the baffles 5 are arranged in groups of four.

[0023] The openings 6 are formed on the inner wall of the baffle 5 , and a plurality of the openings 6 are provided.

[0024] When in use, the gas to be separated is delivered to the delivery port 3, and the gas and liquid in the delivery port 3 will enter the gas-liquid separation tank 1. At this time, the gas and liquid in the gas-liquid separation tank 1 will contact the first group of baffles 5 arranged in the gas-liquid separation tank 1, and flow downward through the openings 6 arranged in the baffles 5, so that the liquid leaks and exhausts through the openings 6. The four groups of baffles 5 arranged in the gas-liquid separation tank 1 are in a stepped shape, so that the gas and liquid in the gas-liquid separation tank 1 increase the contact area between the gas and liquid and the baffles 5 and the openings 6. At the same time, the multiple baffles 5 and the openings 6 are provided to improve the gas-liquid separation. In order to achieve the separation effect, when CNG enters the discharge pipe through the gas filling hydraulic skid-mounted equipment, the gas-liquid mixture will first enter the gas-liquid separator. In the separator, due to the different physical properties of gas and liquid, they will naturally separate. The gas part continues to flow to the discharge system, while the liquid part is collected and returned to the tank. Therefore, by arranging four groups of baffles 5 in the gas-liquid separation tank 1, the separation of the gas-liquid mixture is enhanced to ensure the purity and efficiency of the discharge process, and also improve the working efficiency of the gas-liquid separation. At the same time, the device has the advantages of small footprint and is convenient for staff to move, install and maintain it.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device, comprising a gas-liquid separation tank (1), characterized in that: The gas-liquid separation tank (1) is provided with fixed flanges (2) at the upper and lower ends, the fixed flanges (2) are circular in shape, a plurality of through holes are provided on the inner wall above the fixed flange (2), a delivery port (3) is provided above the fixed flange (2), the delivery port (3) is connected to the liquid outlet (4) through the gas-liquid separation tank (1) at the bottom, a baffle (5) is provided inside the gas-liquid separation tank (1), the baffle (5) is inclined in shape, and an opening (6) is provided inside the baffle (5).

2. The CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device according to claim 1 is characterized by: The fixed flange (2) is symmetrically mounted at the upper and lower ends of the gas-liquid separation tank (1).

3. The CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device according to claim 1 is characterized by: The delivery port (3) is opened on the inner wall above the fixed flange (2), and the liquid outlet (4) is opened on the lower end of the gas-liquid separation tank (1).

4. The CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device according to claim 1 is characterized by: The baffles (5) are installed on the inner wall of the gas-liquid separation tank (1), and the baffles (5) are arranged in groups of four.

5. The CNG filling hydraulic skid-mounted vent pipe gas-liquid separation device according to claim 1 is characterized by: The opening (6) is formed on the inner wall of the baffle (5), and a plurality of the openings (6) are provided.

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