A combined gas purification coalescer

Abstract

The utility model discloses a combined gas purification coalescer, including the casing, be provided with the cylinder in the casing, be provided with centrifugal unit between cylinder and casing, the inside of cylinder is provided with the filler unit and microfiltration unit from below to top, and the gas of entering the casing is purified in proper order through centrifugal unit, filler unit and microfiltration unit, finally discharges through the export of cylinder top, in the application, through setting centrifugal unit to drive the gas movement of entering the casing through the realization gas -liquid spin -off of centrifugal effect, and centrifugal unit is located between cylinder and casing, and the gas of being handled through centrifugation is convenient to contact casing bottom wall after upward movement and enter the cylinder, and realize repeated filtration through filler unit and microfiltration unit in proper order, and gradually filter separation of liquid and other impurities in the gas, thereby improve the gas -liquid separation efficiency of coalescer through combined structure, reach the purpose of energy -conserving, reducing consumption, increasing yield, increasing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gas purification technology, specifically to a combined gas purification coalescer. Background Technology

[0002] During the production, transportation, and use of gases, impurities such as water, oil, and solid particles often become mixed in. If these impurities are not treated in a timely manner, they can lead to problems such as abnormal equipment operation, damage to components, and decreased product quality. Therefore, gas purification, separation, and coalescing technology has emerged to efficiently remove these impurities, ensuring the purity of the gas and the normal operation of the equipment.

[0003] As is well known, cyclone separators are particularly suitable for use under conditions of coarse dust particles, high dust concentration, high temperature and high pressure. However, they have low efficiency in treating fine particles, especially PM10 (dust particles with a diameter of less than 10 μm). The dust removal efficiency gradually decreases as the particle diameter decreases. For example, the separation efficiency of fine powder with a diameter of <5 μm can only reach 70% to 90%. Utility Model Content

[0004] To address the shortcomings of existing technologies, a combined gas purification coalescer is proposed, which solves the problem of low gas-liquid separation efficiency in the aforementioned background technologies.

[0005] To achieve the above objectives, the present invention proposes the following technologies:

[0006] A combined gas purification coalescer includes a shell, a cylinder is disposed inside the shell, a centrifugal unit is disposed between the cylinder and the shell, and a packing unit and a microfiltration unit are disposed inside the cylinder from bottom to top. Gas entering the shell is purified by passing through the centrifugal unit, the packing unit and the microfiltration unit in sequence, and finally discharged through the outlet at the top of the cylinder.

[0007] Furthermore, the housing is provided with an inlet, which is located above the centrifugal unit and inside the air intake pipe, and the air intake pipe is horizontally positioned.

[0008] Furthermore, the air intake pipe is arranged tangentially along the surface of the housing, and the centrifugal unit includes a spiral plate. The spiral plate drives the gas entering the housing through the air intake pipe to spiral, forming a downward first vortex.

[0009] Furthermore, the spiral plate is spirally sleeved on the outside of the cylinder, and the spiral plate is rotatably disposed between the cylinder and the shell to drive the droplets in the first vortex to achieve centrifugal separation.

[0010] Furthermore, the packing unit forms a pleated structure and is located at the bottom of the cylinder. After centrifugal separation, the first vortex contracts towards the center and forms a second vortex. The second vortex moves upward and enters the interior of the cylinder to contact the packing unit.

[0011] Furthermore, the packing unit includes a wire mesh block that matches the inner diameter of the cylinder. The second vortex drives the mist in the gas to collide with the wire mesh in the wire mesh block, so that the mist can diffuse and coalesce to form droplets and fall to achieve gas-liquid separation.

[0012] Furthermore, the microfiltration unit includes a microfiltration membrane located at the top of the cylinder, which rises along the cylinder through the secondary vortex of the packing unit and is then filtered again through the microfiltration membrane.

[0013] Furthermore, the microfiltration membrane is cylindrical, and multiple cylindrical microfiltration membranes are provided. The multiple cylindrical microfiltration membranes are evenly distributed in the cylinder so that the gas can fully contact the microfiltration membrane.

[0014] Furthermore, a backflush port is provided at the top of the cylinder, and a matching vent port is provided on the shell. When the pressure difference across the equipment is greater than a set value, the backflush port and the vent port are opened to facilitate backflush.

[0015] Furthermore, the top of the cylinder is provided with a backwash port, and the bottom of the shell is provided with a liquid outlet. The liquid outlet is used to discharge the liquid separated from the gas, or to discharge the cleaning liquid that enters through the backwash port to clean the inside of the shell.

[0016] Compared with the prior art, the comprehensive effects brought about by this utility model include:

[0017] In this application, a centrifugal unit is set up to drive the gas entering the shell to move and achieve gas-liquid separation through centrifugal action. The centrifugal unit is located between the cylinder and the shell, so that the gas after centrifugation can move upward into the cylinder after contacting the bottom wall of the shell. It then passes through the packing unit and the microfiltration unit in sequence to achieve repeated filtration, gradually filtering and separating liquid and other impurities in the gas. In this way, the gas-liquid separation efficiency of the coalescer is improved through the combined structure, so as to achieve the purpose of energy saving, consumption reduction, production increase and efficiency improvement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a top view of an embodiment of the present invention.

[0020] Legend: 1. Shell; 2. Cylinder; 3. Outlet; 4. Inlet pipe; 5. Spiral plate; 6. Wire mesh block; 7. Microfiltration membrane; 8. Backflush port; 9. Pressure gauge port; 10. Backwash port; 11. Liquid outlet; 12. Level gauge port; 13. Vent port. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1 to 2 As shown, a combined gas purification coalescer includes a housing 1, a cylinder 2 is disposed inside the housing 1, a centrifugal unit is disposed between the cylinder 2 and the housing 1, and a packing unit and a microfiltration unit are disposed inside the cylinder 2 from bottom to top. The gas entering the housing 1 is purified by passing through the centrifugal unit, the packing unit and the microfiltration unit in sequence, and is finally discharged through the outlet 3 at the top of the cylinder 2.

[0024] By setting up a centrifugal unit to drive the gas entering the shell 1, gas-liquid separation is achieved through centrifugal action. The centrifugal unit is located between the cylinder 2 and the shell 1, so that the gas treated by centrifugation can move upward into the cylinder 2 after contacting the bottom wall of the shell 1. It then passes through the packing unit and the microfiltration unit in sequence to achieve repeated filtration, gradually filtering and separating liquid and other impurities in the gas. Thus, the gas-liquid separation efficiency of the coalescer is improved through the combined structure, achieving the purpose of energy saving, consumption reduction, production increase and efficiency improvement.

[0025] In the combined coalescer of this embodiment, the housing 1 is provided with an inlet, which is located above the centrifugal unit and inside the air inlet pipe 4, which is horizontally arranged.

[0026] Specifically, the intake pipe 4 is set horizontally and located above the centrifugal unit, so that the gas can enter the housing 1 through the intake pipe 4 and be effectively driven by the centrifugal unit. After the gas enters the housing 1, it is driven to rotate by the centrifugal unit below, thereby generating centrifugal force. Combined with the effect of gravity, this causes impurities such as droplets in the airflow to be separated from the gas.

[0027] In the combined coalescer of this embodiment, the air inlet pipe 4 is arranged tangentially along the surface of the housing 1, and the centrifugal unit includes a spiral plate 5. The spiral plate 5 drives the gas entering the housing 1 through the air inlet pipe 4 to spirally move and form a downward first vortex.

[0028] With the above configuration, the gas entering the housing 1 through the air inlet pipe 4 is tangent to the rotation trajectory of the spiral plate 5, which further improves the driving effect of the spiral plate 5 on the gas, making it easier to form a stable airflow, thereby generating centrifugal force and effectively separating impurities such as liquid droplets in the gas.

[0029] Preferably, the gas enters in the same direction as the rotation direction of the spiral plate 5 to improve the centrifugal efficiency of the centrifugal unit.

[0030] In the combined coalescer of this embodiment, the spiral plate 5 is spirally sleeved on the outside of the cylinder 2. The spiral plate 5 is rotatably disposed between the cylinder 2 and the shell 1 to drive the droplets in the first vortex to achieve centrifugal separation.

[0031] Specifically, the spiral plate 5 is made of corrosion-resistant metal material.

[0032] The airflow containing impurities enters the cyclone separation zone inside the equipment tangentially through the inlet, changing from linear motion to circular motion. Driven by the spiral plate 5, it forms a rotating airflow, i.e., the first vortex, in the centrifugal unit channel between the cylinder 2 and the shell 1. The first vortex flows spirally downwards from the outside of the cylinder 2 along the inner wall of the shell 1. High-density droplets and dust particles are thrown towards the wall under the action of centrifugal force, and fall down along the inner wall of the shell 1 under the action of gravity, flowing out of the cyclone channel to the liquid storage area at the bottom of the shell 1. Preferably, the bottom of the shell 1 is provided with a liquid outlet 11 connected to the liquid storage area. The liquid collected in the liquid storage area and separated from the gas flows out from the liquid outlet 11 at the bottom of the equipment, thereby achieving gas-liquid, gas-solid, and liquid-solid separation by gravity and centrifugal force.

[0033] Preferably, two level gauge ports 12 are provided on the lower part of the surface of the housing 1. By monitoring the liquid level at the two level gauge ports 12, the opening / closing of the outlet valve 11 is controlled. A manhole is also provided on the housing 1. The manhole flange cover is hinged to the housing 1 to control the opening and closing of the manhole. The manhole facilitates the inspection or maintenance of the internal centrifugal unit.

[0034] In the combined coalescer of this embodiment, the packing unit forms a pleated structure and is located at the bottom of the cylinder 2. The first vortex after centrifugal separation contracts towards the center and forms a second vortex. The second vortex moves upward and enters the interior of the cylinder 2 to contact the packing unit.

[0035] After the first vortex moves downward and separates most of the impurities by centrifugal force, the mass of the gas decreases. Since the bottom of the shell 1 is sealed, it cannot continue to move downward. The air pressure inside the cylinder 1 is relatively low. The rotating airflow gradually contracts and flows towards the center inside the shell 1, and moves upward to form a second vortex. This allows the gas to enter the cylinder 2 and rise to the position of the packing unit for further filtration and separation.

[0036] Preferably, the packing unit is made of corrosion-resistant metal material, and its large-area pleated structure can increase the contact area between the second vortex and the packing unit, thereby improving the filtration and separation effect of the packing unit.

[0037] In the combined coalescer of this embodiment, the packing unit includes a wire mesh block 6 that matches the inner diameter of the cylinder 2. The second vortex drives the mist in the gas to collide with the wire mesh in the wire mesh block 6, so that the mist can diffuse and coalesce to form droplets and fall to achieve gas-liquid separation.

[0038] Specifically, after the second vortex enters the cylinder 2, when the gas rises through the packing unit at a certain speed, due to the inertia of the rising mist in the gas, the mist collides with the fine wires of the wire mesh block 6 and is attached to the surface of the fine wires. The diffusion of the mist on the surface of the fine wires and the gravity settling of the mist cause the mist to form extremely small droplets. The extremely small droplets continuously agglomerate into larger droplets. Finally, the large droplets separate from the packing unit and fall off due to their own gravity, thus achieving the removal of mist.

[0039] Preferably, by selecting a suitable packing unit, the residual 10~100μm oil and water (including dust and other impurities) in the second eddy can be efficiently separated.

[0040] In the combined coalescer of this embodiment, the microfiltration unit includes a microfiltration membrane 7 located at the top of the cylinder 2. The secondary vortex of the packing unit rises along the cylinder 2 and is filtered again through the microfiltration membrane 7.

[0041] Specifically, the microfiltration unit consists of a large number of microfiltration-grade stainless steel wire mesh microfiltration membranes 7 and a gas distribution chamber formed by the microfiltration membranes 7. Relying on the high precision, high efficiency and large separation area of ​​the microfiltration membranes 7, the particles in the gas are further filtered and separated to improve the separation efficiency.

[0042] Preferably, by selecting suitable microfiltration materials, impurities such as oil, water, and dust with a diameter of 1~10μm and above 10μm can be separated efficiently, with an efficiency of up to 99.85%.

[0043] In the combined coalescer of this embodiment, the microfiltration membrane 7 is cylindrical, and multiple cylindrical microfiltration membranes 7 are provided. The multiple cylindrical microfiltration membranes 7 are evenly distributed in the cylinder 2 so that the gas can fully contact the microfiltration membranes 7.

[0044] The microfiltration membrane 7 is enclosed in a cylindrical shape, which increases the contact area between the microfiltration membrane 7 and the gas. After the gas passes through the packing unit, it is basically free of mist. After being filtered by the microfiltration unit with high porosity, high precision and high dirt holding capacity, a relatively pure gas is obtained. The relatively pure gas flows out through the outlet 3 at the top of the cylinder 2.

[0045] In the combined coalescer of this embodiment, the top of the cylinder 2 is provided with a backflush port 8, and the shell 1 is provided with a matching vent port 13. When the pressure difference across the device is greater than a set value, the backflush port 8 and the vent port 13 are opened to facilitate backflush.

[0046] Specifically, pressure gauge ports 9 are respectively installed on the shell 1 and the top of the cylinder 2 for installing pressure gauges to check the air pressure inside the shell 1. The two ports together realize the function of detecting the pressure difference before and after. When the pressure difference before and after the device is detected to be greater than the set value, the backflush port 8 is opened and the vent port 13 is opened at the same time to enter the regeneration mode and backflush the microfiltration unit to prevent the microfiltration unit from being blocked and causing the gas to accumulate in the shell 1 due to the inability to filter.

[0047] In the combined coalescer of this embodiment, the top of the cylinder 2 is also provided with a backwash port 10, and the cleaning liquid that enters through the backwash port 10 to clean the inside of the shell 1 is discharged through the liquid outlet 11.

[0048] When the machine is stopped for maintenance, the valve on the backwash port 10 can be opened to allow cleaning fluid to be introduced to backwash the various unit structures inside the housing 1, so as to prevent impurities from causing blockage in each unit.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined gas purification and coalescing device, characterized in that, The device includes a housing, inside which is a cylindrical body. A centrifugal unit is disposed between the cylindrical body and the housing. From bottom to top, a packing unit and a microfiltration unit are disposed inside the cylindrical body. Gas entering the housing is purified by passing through the centrifugal unit, the packing unit and the microfiltration unit in sequence, and finally discharged through the outlet at the top of the cylindrical body.

2. The combined gas purification and coalescing device according to claim 1, characterized in that, The housing is provided with an inlet, which is located above the centrifugal unit and inside the air intake pipe, which is horizontally positioned.

3. The combined gas purification and coalescing device according to claim 2, characterized in that, The air intake pipe is arranged tangentially along the surface of the housing, and the centrifugal unit includes a spiral plate. The spiral plate drives the gas entering the housing through the air intake pipe to spiral, forming a downward first vortex.

4. A combined gas purification and coalescing device according to claim 3, characterized in that, The spiral plate is spirally sleeved on the outside of the cylinder. The spiral plate is rotatably disposed between the cylinder and the shell to drive the droplets in the first vortex to achieve centrifugal separation.

5. A combined gas purification and coalescing device according to claim 4, characterized in that, The packing unit forms a pleated structure and is located at the bottom of the cylinder. After centrifugal separation, the first vortex contracts towards the center and forms a second vortex. The second vortex moves upward and enters the interior of the cylinder to contact the packing unit.

6. A combined gas purification and coalescing device according to claim 5, characterized in that, The packing unit includes a wire mesh block that matches the inner diameter of the cylinder. The second vortex drives the mist in the gas to collide with the wire mesh in the wire mesh block, so that the mist can diffuse and coalesce to form droplets and fall to achieve gas-liquid separation.

7. A combined gas purification and coalescing device according to claim 5, characterized in that, The microfiltration unit includes a microfiltration membrane located at the top of the cylinder. The secondary vortex of the packing unit rises along the cylinder and is filtered again through the microfiltration membrane.

8. A combined gas purification and coalescing device according to claim 7, characterized in that, The microfiltration membrane is cylindrical, and multiple cylindrical microfiltration membranes are provided. The multiple cylindrical microfiltration membranes are evenly distributed in the cylinder so that the gas can fully contact the microfiltration membrane.

9. A combined gas purification and coalescing device according to claim 1, characterized in that, The top of the cylinder is provided with a backflush port, and the shell is provided with a matching vent port. When the pressure difference across the equipment is greater than a set value, the backflush port and the vent port are opened to facilitate backflush.

10. A combined gas purification and coalescing device according to claim 1, characterized in that, The top of the cylinder is provided with a backwash port, and the bottom of the shell is provided with a liquid outlet. The liquid outlet is used to discharge the liquid separated from the gas, or to discharge the cleaning liquid that enters through the backwash port to clean the inside of the shell.

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