Multi-stage separation stable pollution discharge precision filtering device

Abstract

The utility model belongs to the technical field of compressed air drying and filtering equipment, and relates to a multi-stage separation stable pollution discharge precise filtering device which comprises a coarse separation assembly and a precise separation assembly which are mutually matched and connected, and an outlet of the coarse separation assembly is hermetically connected with an inlet of the precise separation assembly; the coarse separation assembly comprises an upper tank body, one axial end of the upper tank body is in threaded connection with an upper cover body, a flow guide structure is fixed in the upper cover body, an upper flow guide space is formed between the flow guide structure and the upper tank body, the upper cover body is provided with an inclined inlet, and the inlet is communicated with an inner cavity of the upper tank body; the fine separation assembly comprises a lower tank body, the lower tank body and the upper tank body are connected through a connecting flange, a filter element is installed on the connecting flange and communicated with the upper tank body and the lower tank body, and the connecting flange is provided with an outlet; filler is laid at the bottom of the lower tank body, a pressing plate is arranged on the filler, and a pollution discharge connector is arranged at the lower end of the lower tank body. According to the filtering device, oil, water and other liquid drops in gas can be effectively removed, secondary pollution caused by gas flow impact is avoided, and the quality of outlet gas and the working efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressed air drying and filtering equipment, and relates to a multi-stage separation stable sewage discharge precision filtering device. Background Art

[0002] With the continuous development of science and technology, higher requirements are put forward for liquid-gas separators in some industries. In the working process of existing liquid-gas separators, there is no protection measure at the bottom of the liquid-gas separator, and the bottom of the liquid-gas separator will be directly subjected to the impact of air pressure, resulting in the accumulation of liquid at the bottom to form a vortex, which will be mixed with the gas again to cause secondary pollution; for liquid-gas separators with an outside-in and inside-out filtering structure, the liquid attached to the filter element will flow out with the gas under the action of air pressure, resulting in the outlet gas not being pure and dry enough. Summary of the invention

[0003] In view of the above problems, the utility model provides a multi-stage separation stable sewage discharge precision filtering device, which can effectively remove oil, water and other liquid droplets in the gas, and avoid secondary pollution caused by air flow impact, thereby improving the export gas quality and work efficiency.

[0004] According to the technical solution of the utility model: a multi-stage separation stable sewage discharge precision filtering device, including a coarse separation component and a fine separation component that are mutually matched and connected, and the outlet of the coarse separation component is sealed and connected to the inlet of the fine separation component; characterized in that: the coarse separation component includes an upper tank body, one axial end of the upper tank body is threadedly connected to the upper cover body, a guide structure is fixed in the upper cover body, an upper guide space is formed between the guide structure and the upper tank body, and the upper cover body is provided with an inlet arranged obliquely, and the inlet is connected to the inner cavity of the upper tank body;

[0005] The fine separation assembly comprises a lower tank body, the lower tank body is connected to the upper tank body via a connecting flange, a filter element is installed on the connecting flange, the filter element communicates with the upper tank body and the lower tank body, and the connecting flange is provided with an outlet;

[0006] A filler is laid on the bottom of the lower tank body, a pressure plate is arranged on the filler, and a sewage discharge interface is arranged at the lower end of the lower tank body.

[0007] As a further improvement of the present invention, the inner bottom plate of the upper cover body is structured with a mounting portion, the mounting portion extends into the inner cavity of the upper tank body, and the flow guide structure is mounted on the mounting portion;

[0008] The flow guide structure comprises a flow guide tube, the upper connection end of the flow guide tube is fastened to the mounting portion by bolts, and a flow guide plate is spirally arranged on the surface of a cylinder body fixedly connected to the lower end of the conical surface of the flow guide tube.

[0009] As a further improvement of the utility model, the inner walls at both axial ends of the connecting flange are respectively provided with internal threads, the lower end of the upper tank body and the upper end of the lower tank body are respectively provided with external threads, and the internal threads are threadedly connected with the corresponding external threads.

[0010] As a further improvement of the utility model, a conical expansion structure is provided on the bottom surface of the upper inner cavity of the connecting flange.

[0011] As a further improvement of the utility model, sealing rings are respectively arranged between the connecting flange and the upper tank body, the lower tank body, and between the upper tank body and the upper cover body.

[0012] The technical effect of the utility model is that the installation is convenient and conforms to the humanized design. The whole is fastened by quick rotation, which facilitates the overall disassembly and cleaning of the liquid-gas separation precision filtering device and the replacement of the filter element.

[0013] The liquid-gas separation precision filtration device is divided into upper and lower tanks. The longer tube wall allows the droplets to be condensed more fully and can store more gas than conventional liquid-gas separators. It can effectively avoid pressure fluctuations in the pipeline, alleviate impact force, stabilize pressure, and improve work efficiency.

[0014] The upper tank body performs rough separation on the gas-liquid mixture, and is equipped with a guide plate inside to perform cyclone separation on the gas-liquid mixture and separate large particle droplets.

[0015] The lower tank is equipped with a special filter element to further separate the gas-liquid mixture. The filter mesh of the filter element near the bottom is coarser than the rest of the filter element, which allows the large particle droplets separated from the upper tank to quickly gather at the bottom of the lower tank without affecting the filtering effect.

[0016] The filtering structure of the lower tank is inside-in and outside-out, which can better ensure that the outlet gas is dry and pure compared to outside-in and inside-out.

[0017] The bottom of the lower tank is equipped with a pressure plate and a steel ball to ensure that the liquid is stably gathered at the bottom of the lower tank, improving the sewage discharge efficiency. It reduces the impact of the gas-liquid mixture on the bottom of the lower tank, effectively prevents the accumulation of liquid at the bottom from forming a vortex, and prevents the clean gas from being contaminated again.

[0018] Reasonably designed sealing rings inside the upper and lower tanks can greatly reduce air pressure loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1It includes an upper cover body 1, a mounting portion 1-1, an upper tank body 2, a connecting flange 3, a lower tank body 4, a sewage discharge interface 5, a steel ball 6, a pressure plate 7, a filter element 8, a guide structure 9, a guide tube 9-1, a guide plate 9-2, etc.

[0022] like Figure 1 As shown, the utility model is a multi-stage separation stable sewage discharge precision filtering device, including a coarse separation component and a fine separation component which are matched and connected to each other, and the outlet of the coarse separation component is sealed and connected to the inlet of the fine separation component; the coarse separation component includes an upper tank body 2, one axial end of the upper tank body 2 is threadedly connected to the upper cover body 1, a guide structure 9 is fixed inside the upper cover body 1, and an upper guide space is formed between the guide structure 9 and the upper tank body 2, and the upper cover body 1 is provided with an inclined inlet, and the inlet is connected to the inner cavity of the upper tank body 2.

[0023] The fine separation assembly includes a lower tank body 4, which is connected to the upper tank body 2 via a connecting flange 3, on which a filter element 8 is installed, the filter element 8 connects the upper tank body 2 and the lower tank body 4, and the connecting flange 3 is provided with an outlet.

[0024] A filler 6 is laid on the bottom of the lower tank body 4 , a pressure plate 7 is arranged on the filler 6 , and a sewage discharge interface 5 is arranged at the lower end of the lower tank body 4 .

[0025] The inner bottom plate of the upper cover body 1 is structured with a mounting portion 1 - 1 , which extends into the inner cavity of the upper tank body 2 , and the flow guide structure 9 is mounted on the mounting portion 1 - 1 .

[0026] The flow guide structure 9 includes a flow guide tube 9-1, the upper connection end of the flow guide tube 9-1 is fastened to the mounting portion 1-1 by bolts, and a flow guide plate 9-2 is spirally arranged on the surface of the cylinder body fixedly connected to the lower end of the conical surface of the flow guide tube 9-1.

[0027] Internal threads are respectively arranged on the inner walls at both axial ends of the connecting flange 3 , and external threads are respectively arranged on the lower end of the upper tank body 2 and the upper end of the lower tank body 4 , and the internal threads are threadedly connected with the corresponding external threads.

[0028] The bottom surface of the upper inner cavity of the connecting flange 3 is provided with a conical expansion structure.

[0029] Sealing rings are respectively arranged between the connecting flange 3 and the upper tank body 2 , the lower tank body 4 , and between the upper tank body 2 and the upper cover body 1 .

[0030] like Figure 1 As shown, the working process of the utility model is as follows: after the gas-liquid mixture enters the upper tank body 2 of the liquid-gas separation precision filtration device through the gas inlet of the upper cover body 1, it rotates at high speed along the outer wall of the cylinder under the action of the guide plate 9 to perform cyclone separation, separate most of the liquid, and complete the rough separation.

[0031] The lower tank 4 is equipped with a special filter element 8, which can quickly precipitate larger particles of liquid without affecting the filtering effect. After the gas-liquid mixture reaches the lower tank 4 through the connecting flange, the liquid separated from the upper tank 2 flows to the bottom of the lower tank 4 through the coarser filter at the bottom of the special filter element 8, and the remaining gas-liquid mixture is further finely separated by the special filter element 8, and the filtered liquid will gradually gather at the bottom of the lower tank 4.

[0032] The steel ball filler 6 laid under the bottom pressure plate 7 of the lower tank body 4 can effectively reduce the impact force of the high-pressure gas to prevent the bottom liquid from splashing, and ensure that the liquid is stably gathered at the bottom of the lower tank body 4.

[0033] The liquid accumulated at the bottom of the pressing plate 7 and the steel wool 6 can be quickly discharged through the sewage discharge interface at the bottom of the liquid-gas separation precision filtering device.

[0034] After a period of use, the conventional liquid-gas separator needs to replace the filter element 8 and clean the tank. Most of the previous liquid-gas separators were fixed by bolts, and disassembly and installation were too cumbersome. The liquid-gas separation precision filtration device adopts quick-screw fastening as a whole, which is convenient for disassembly, cleaning and replacement.

[0035] The liquid-gas separation precision filtration device is divided into upper and lower tanks, which can store more gas than conventional liquid-gas separators, and can effectively avoid pressure fluctuations in the pipeline, thereby stabilizing the pressure.

Claims

1. A multi-stage separation stable sewage discharge precision filtering device, comprising a coarse separation component and a fine separation component which are mutually matched and connected, wherein the outlet of the coarse separation component is sealedly connected to the inlet of the fine separation component; characterized in that: The coarse separation assembly comprises an upper tank body (2), one axial end of the upper tank body (2) being threadedly connected to an upper cover body (1), a flow guide structure (9) being fixed inside the upper cover body (1), an upper flow guide space being formed between the flow guide structure (9) and the upper tank body (2), the upper cover body (1) being provided with an inlet arranged obliquely, the inlet being connected to the inner cavity of the upper tank body (2); The fine separation assembly comprises a lower tank body (4), the lower tank body (4) being connected to the upper tank body (2) via a connecting flange (3), a filter element (8) being installed on the connecting flange (3), the filter element (8) being connected to the upper tank body (2) and the lower tank body (4), and the connecting flange (3) being provided with an outlet; A filler (6) is laid on the bottom of the lower tank body (4), a pressure plate (7) is arranged on the filler (6), and a sewage discharge interface (5) is arranged at the lower end of the lower tank body (4).

2. The multi-stage separation stable sewage discharge precision filtration device according to claim 1, characterized in that: The inner bottom plate of the upper cover body (1) is structured as a mounting portion (1-1), the mounting portion (1-1) extends into the inner cavity of the upper tank body (2), and the flow guide structure (9) is mounted on the mounting portion (1-1); The flow guide structure (9) comprises a flow guide tube (9-1), the upper connection end of the flow guide tube (9-1) being fastened to the mounting portion (1-1) by bolts, and a flow guide plate (9-2) being spirally arranged on the surface of a tube body to which the lower end of the conical surface of the flow guide tube (9-1) is fixedly connected.

3. The multi-stage separation stable sewage discharge precision filtration device according to claim 1, characterized in that: Internal threads are respectively provided on the inner walls of the two axial ends of the connecting flange (3), and external threads are respectively provided on the lower end of the upper tank body (2) and the upper end of the lower tank body (4), and the internal threads are threadedly connected with corresponding external threads.

4. The multi-stage separation stable sewage discharge precision filtration device according to claim 1, characterized in that: The bottom surface of the upper inner cavity of the connecting flange (3) is provided with a conical expansion structure.

5. The multi-stage separation stable sewage discharge precision filtration device according to claim 1, characterized in that: Sealing rings are respectively arranged between the connecting flange (3) and the upper tank body (2), the lower tank body (4), and between the upper tank body (2) and the upper cover body (1).

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