Separation protection device

Abstract

A separation protection device comprises a cylinder, a bottom sealing head and a top sealing head are welded to the two ends of the cylinder respectively, and a sealed container is formed; the air inlet pipe is welded to the side wall of the barrel and communicated with the interior, and the inlet direction of the air inlet pipe is consistent with the tangential direction of the inner wall of the barrel, so that the mixture forms rotational flow after entering the barrel; the air outlet pipe is welded to the top sealing head and coaxially connected with the guide pipe, the inner diameter of the guide pipe is larger than that of the air outlet pipe, and a gap is reserved between the guide pipe and the air outlet pipe; the inlet of the gas inlet pipe is consistent with the tangent line of the inner wall of the cylinder body, mixed gas forms rotational flow after entering, gas-liquid and solid-gas primary separation is achieved through centrifugal force, the gas-liquid separation effect is good, and the gas-liquid separation effect is good. Liquid and particulate matters with higher density are thrown to the inner wall of the barrel, so that a mixture of gas, the liquid and the particulate matters is effectively separated, the cleanliness of the gas is guaranteed, and the separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a protective device, specifically a separation protective device. Background Technology

[0002] Existing vacuum tank trucks and similar equipment create a vacuum inside the tank by extracting gas, allowing them to draw in external liquid mixtures and transport them to designated locations for discharge, thus treating waste and pollutants. However, during use, it has been found that the vacuum pumps have a high failure rate and frequent malfunctions. Analysis revealed that the waste and pollutant liquid mixtures contain many hard particles, which enter the vacuum pump, causing abnormal wear, reduced blade life, and decreased vacuum levels. Consequently, operators must thoroughly clean the vacuum pump and its connecting pipes after each operation. This results in prolonged maintenance time after each use, significantly reducing the vehicle's operational efficiency.

[0003] Therefore, it is necessary to develop a separation and protection device that can separate harder particles and liquids from the gas, protect the vacuum pump, reduce the frequency of vacuum pump maintenance, and improve the efficiency of vehicle use. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a separation protection device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0006] The cylindrical body has a bottom end cap and a top end cap welded to its two ends to form a sealed container;

[0007] The air inlet pipe is welded to the side wall of the cylinder and communicates with the inside. The inlet direction of the air inlet pipe is consistent with the tangential direction of the inner wall of the cylinder so that the mixture forms a swirling flow after entering the cylinder.

[0008] The vent pipe is welded to the top end cap and coaxially connected to the guide pipe. The inner diameter of the guide pipe is larger than the inner diameter of the vent pipe, and a gap is left between the guide pipe and the vent pipe.

[0009] The guide tube is fixed inside the cylinder, and the float ball is slidably installed inside the guide tube to block the vent pipe when the liquid level of the mixture rises.

[0010] Preferably, it also includes a drain pipe, which is welded to the bottom end cap and communicates with the inside of the cylinder, and the drain pipe is equipped with a switch valve.

[0011] Preferably, the cylinder has a cylindrical structure with a smooth inner wall to guide the mixture to move centrifugally along the cylinder's axial direction.

[0012] Preferably, the gap between the guide tube and the air outlet tube is smaller than the diameter of the float.

[0013] Preferably, the density of the float is between that of a gas and liquid mixture, and the surface of the float is covered with a corrosion-resistant material layer.

[0014] Preferably, the valve on / off of the drain pipe is a manual or automatic control valve, used to open and close the drain operation according to the liquid level signal.

[0015] Beneficial effects: Highly efficient separation of mixtures: The inlet of the air inlet pipe is aligned with the tangent of the inner wall of the cylinder. After the mixed gas enters, it forms a vortex. Centrifugal force is used to achieve preliminary separation of gas and liquid, and solid and gas. The denser liquid and particulate matter are thrown towards the inner wall of the cylinder, effectively separating the mixture of gas and liquid and particulate matter, ensuring the cleanliness of the gas and improving the separation efficiency.

[0016] Protecting downstream equipment: The float can slide inside the guide tube. When the liquid level of the mixture in the device rises, the float rises and blocks the gas outlet pipe, preventing the mixture from entering downstream equipment (such as a vacuum pump) with the gas. This avoids damage to the equipment due to the mixing of liquid and particulate matter, such as wear and corrosion, reduces the equipment failure rate, and extends the service life of the equipment.

[0017] Convenient sewage discharge operation: The sewage discharge pipe is welded to the bottom end cap and connects to the inside of the cylinder. It is equipped with a manual or automatic control valve, which can control the sewage discharge operation according to the liquid level signal. Whether controlled manually or automatically, the separated liquid and particulate matter can be discharged in a timely manner. The operation is simple and conducive to the continuous and stable operation of the equipment.

[0018] Simple and practical structure: The device is mainly composed of a cylinder, bottom end cap, top end cap, air inlet pipe, air outlet pipe, guide pipe, float ball and drain pipe, etc. The overall structure is simple, the functions of each component are clear, it is easy to manufacture, install and maintain, the cost is low, and it is suitable for a variety of industrial scenarios. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Fig. 2 This is a schematic diagram of the structure of the mixture entering the present invention;

[0022] Fig. 3 This is a schematic diagram of the installation and use structure of this utility model;

[0023] The following are the labels in the diagram: 1. Cylinder body; 2. Bottom end cap; 3. Top end cap; 4. Inlet pipe; 5. Outlet pipe; 6. Guide pipe; 7. Float; 8. Drain pipe. Detailed Implementation

[0024] The following is in conjunction with the appendix Figs. 1-3 The specific embodiments of this utility model will be described in further detail.

[0025] Implementation examples, by Figs. 1-3 This utility model provides a separation protection device, comprising: a cylinder 1, a bottom end cap 2, a top end cap 3, an air inlet pipe 4, an air outlet pipe 5, a guide pipe 6, a float ball 7, and a drain pipe 8.

[0026] A cylindrical body 1 has a bottom end cap 2 and a top end cap 3 welded to its two ends to form a sealed container;

[0027] The air inlet pipe 4 is welded to the side wall of the cylinder 1 and communicates with the inside. The inlet direction of the air inlet pipe 4 is consistent with the tangential direction of the inner wall of the cylinder 1 so that the mixture forms a vortex after entering the cylinder.

[0028] The vent pipe 5 is welded to the top end cap 3 and coaxially connected to the guide pipe 6. The inner diameter of the guide pipe 6 is larger than the inner diameter of the vent pipe 5, and a gap is left between the guide pipe 6 and the vent pipe 5.

[0029] The guide tube 6 is fixed inside the cylinder 1, and the float 7 is slidably disposed inside the guide tube 6 to block the vent pipe 5 when the liquid level of the mixture rises.

[0030] Cylinder 1: Cylinder 1 is a cylindrical structure with a smooth inner wall. Bottom end cap 2 and top end cap 3 are welded to both ends of cylinder 1, forming a sealed container. This structural design allows the mixture entering the device to move in a circular motion along the inner wall of cylinder 1, thereby achieving centrifugal separation.

[0031] Inlet pipe 4: Inlet pipe 4 is welded to the side wall of cylinder 1 and communicates with the inside of cylinder 1. The inlet direction of inlet pipe 4 is consistent with the tangential direction of the inner wall of cylinder 1. When the mixture enters cylinder 1 through inlet pipe 4, it will form a swirling flow inside cylinder 1. Using centrifugal force, the liquid and particulate matter are thrown towards the inner wall of cylinder 1, thereby achieving the initial separation of gas and liquid and solid and gas.

[0032] Vent pipe 5: Vent pipe 5 is welded to the top end cap 3 and coaxially connected to the guide pipe 6. The inner diameter of the guide pipe 6 is larger than the inner diameter of the vent pipe 5, and a gap is left between the guide pipe 6 and the vent pipe 5, the height of which is smaller than the diameter of the float 7. The separated gas is discharged from the device through the vent pipe 5.

[0033] Guide tube 6: Guide tube 6 is fixed inside the cylinder 1, and float 7 is slidably disposed inside guide tube 6. The function of guide tube 6 is to guide float 7 to slide up and down inside cylinder 1, ensuring that float 7 can accurately block gas outlet pipe 5 when the liquid level of the mixture rises, preventing the mixture from entering subsequent equipment with the gas.

[0034] Float 7: The density of float 7 is between that of the gas and liquid mixture, and the surface of float 7 is covered with a corrosion-resistant material layer. When the liquid level of the mixture in the device rises, float 7 will rise with the liquid level until it rises to the outlet pipe 5 and blocks the outlet pipe 5, thus protecting the downstream equipment.

[0035] Sewage pipe 8: Sewage pipe 8 is welded to the bottom end cap 2 and communicates with the inside of the cylinder 1. Sewage pipe 8 is equipped with a switch valve. The switch valve of sewage pipe 8 is a manual or automatic control valve, used to open and close the sewage discharge operation according to the liquid level signal, so as to discharge the separated liquid and particulate matter from the device.

[0036] Working principle: When the separation and protection device is connected to the system and starts working, the mixed gas containing liquid and particulate matter enters the cylinder 1 through the inlet pipe 4. Since the inlet direction of the inlet pipe 4 is consistent with the tangential direction of the inner wall of the cylinder 1, the mixed gas forms a swirling flow inside the cylinder 1 after entering. Under the action of centrifugal force, the denser liquid and particulate matter are thrown towards the inner wall of the cylinder 1, flow downward along the inner wall and accumulate at the bottom of the cylinder 1, while the less dense gas continues to move upward.

[0037] The upward-moving gas passes through the gap between the outlet pipe 5 and the guide pipe 6, exits from the outlet pipe 5, and enters subsequent equipment. During normal operation, the float 7 is located at the bottom of the guide pipe 6 and does not affect the gas discharge.

[0038] As the device continues to operate, the amount of liquid and particulate matter accumulating at the bottom of cylinder 1 gradually increases, causing the liquid level to rise continuously. When the liquid level rises to a certain level, the float 7 will rise with the liquid level and slide upward within the guide tube 6. Since the density of the float 7 is between that of a gas and liquid mixture, and the gap between the guide tube 6 and the vent pipe 5 is smaller than the diameter of the float 7, when the float 7 rises to the vent pipe 5, it will block the vent pipe 5, preventing liquid and particulate matter from entering subsequent equipment with the gas, thus providing a protective function.

[0039] When float 7 blocks the outlet pipe 5, the pressure within the system changes (this is existing technology). This change can be detected by devices such as pressure sensors, or by operators observing abnormal equipment operation. At this time, operation is performed according to the control method of the drain pipe 8's on / off valve. If it is a manual control valve, the operator manually opens the drain pipe 8's on / off valve; if it is an automatic control valve, the on / off valve opens automatically based on the liquid level signal. Liquid and particulate matter accumulated at the bottom of the cylinder 1 are discharged from the device through the drain pipe 8 under gravity. After the discharge is complete, the drain pipe 8's on / off valve is closed, the liquid level in the device drops, and float 7 also descends back to the bottom of the guide pipe 6. The device returns to normal operation, continuing to separate the mixed gas and protect downstream equipment.

[0040] Beneficial effects: Highly efficient separation of mixtures: The inlet of the air inlet pipe is aligned with the tangent of the inner wall of the cylinder. After the mixed gas enters, it forms a vortex. Centrifugal force is used to achieve preliminary separation of gas and liquid, and solid and gas. The denser liquid and particulate matter are thrown towards the inner wall of the cylinder, effectively separating the mixture of gas and liquid and particulate matter, ensuring the cleanliness of the gas and improving the separation efficiency.

[0041] Protecting downstream equipment: The float can slide inside the guide tube. When the liquid level of the mixture in the device rises, the float rises and blocks the gas outlet pipe, preventing the mixture from entering downstream equipment (such as a vacuum pump) with the gas. This avoids damage to the equipment due to the mixing of liquid and particulate matter, such as wear and corrosion, reduces the equipment failure rate, and extends the service life of the equipment.

[0042] Convenient sewage discharge operation: The sewage discharge pipe is welded to the bottom end cap and connects to the inside of the cylinder. It is equipped with a manual or automatic control valve, which can control the sewage discharge operation according to the liquid level signal. Whether controlled manually or automatically, the separated liquid and particulate matter can be discharged in a timely manner. The operation is simple and conducive to the continuous and stable operation of the equipment.

[0043] Simple and practical structure: The device is mainly composed of a cylinder, bottom end cap, top end cap, air inlet pipe, air outlet pipe, guide pipe, float ball and drain pipe, etc. The overall structure is simple, the functions of each component are clear, it is easy to manufacture, install and maintain, the cost is low, and it is suitable for a variety of industrial scenarios.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A separation protection device, characterized in that, include: A cylindrical body (1) is formed by welding a bottom end cap (2) and a top end cap (3) to its two ends to form a sealed container; An air inlet pipe (4) is welded to the side wall of the cylinder (1) and communicates with the interior. The inlet direction of the air inlet pipe (4) is consistent with the tangential direction of the inner wall of the cylinder (1) so that the mixture forms a vortex after entering the cylinder. The vent pipe (5) is welded to the top end cap (3) and coaxially connected with the guide pipe (6). The inner diameter of the guide pipe (6) is larger than the inner diameter of the vent pipe (5), and there is a gap between the guide pipe (6) and the vent pipe (5). The guide tube (6) is fixed inside the cylinder (1), and the float (7) is slidably disposed inside the guide tube (6) to block the vent pipe (5) when the liquid level of the mixture rises.

2. The separation protection device according to claim 1, characterized in that: It also includes a drain pipe (8), which is welded to the bottom head (2) and connected to the inside of the cylinder (1), and the drain pipe (8) is equipped with a switch valve.

3. The separation protection device according to claim 2, characterized in that: The cylinder (1) is a cylindrical structure with a smooth inner wall to guide the mixture to move centrifugally along the axis of the cylinder.

4. A separation protection device according to claim 3, characterized in that: The gap between the guide tube (6) and the air outlet tube (5) is smaller than the diameter of the float (7).

5. A separation protection device according to claim 4, characterized in that: The density of the float (7) is between that of a gas and liquid mixture, and the surface of the float (7) is covered with a corrosion-resistant material layer.

6. A separation protection device according to claim 5, characterized in that: The on / off valve of the drain pipe (8) is a manual or automatic control valve, used to open and close the drain operation according to the liquid level signal.

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