Water removal type vacuum station

Abstract

The utility model discloses a water removal type vacuum station. The water removal type vacuum station comprises a rack and an air exhaust connecting pipe I, a primary filtering assembly is arranged on the first air exhaust connecting pipe, the air outlet end of the first air exhaust connecting pipe is connected with the intermediate filtering assembly, the primary filtering assembly comprises a filter body, and a residue discharging pipe is connected to the bottom of the filter body; the intermediate filtering assembly comprises a gas-liquid separation bin and a first liquid storage cavity connected with the gas-liquid separation bin through a first liquid inlet pipe, and the gas-liquid separation bin is connected with the water-gas separation assembly through a second air exhaust connecting pipe. The water-gas separation assembly comprises a condensation bin, a second liquid storage cavity connected with the condensation bin through a second liquid inlet pipe and a negative pressure gas outlet connected with the vacuum pump, and a water drainage pipe is arranged at the bottom of the second liquid storage cavity. Impurities and water in vacuum gas are removed, steam in the pipeline is separated, steam and impurities are prevented from entering the vacuum pump to cause damage to machinery, and production cost of enterprises is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water-gas separation, in particular to a water removal type vacuum station. Background Art

[0002] When the CNC machining platform is processing, vacuum adsorption is usually used to adsorb and position the products to be processed. Vacuum adsorption requires a vacuum pump to evacuate the product. During the vacuum pump evacuation process, water vapor in the air will enter the vacuum pump through the pipeline. A large amount of water entering will emulsify the lubricating oil in the vacuum pump, requiring frequent replacement of the lubricating oil, and even causing damage to the machinery, resulting in increased production costs for the company. Therefore, it is necessary to design a water removal vacuum station to solve the above problems. Utility Model Content

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a water removal vacuum station to remove impurities and water in the vacuum gas and separate the water vapor in the pipeline, so as to prevent water vapor and impurities from entering the vacuum pump and causing mechanical damage, thereby reducing the production cost of the enterprise.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a water removal vacuum station, used to draw gas into a vacuum pump, including a frame and an exhaust connection pipe; one end of the exhaust connection pipe is a negative pressure air inlet, a primary filter assembly is arranged on the exhaust connection pipe, and the upper air outlet end is connected to the intermediate filter assembly, the primary filter assembly includes a filter body, a residue discharge pipe is connected to the bottom of the filter body, the intermediate filter assembly includes a gas-liquid separation chamber and a liquid storage chamber connected thereto through a liquid inlet pipe, the gas-liquid separation chamber is connected to a water-gas separation assembly through an exhaust connection pipe, the water-gas separation assembly includes a condensation chamber, a liquid storage chamber connected thereto through a liquid inlet pipe, and a negative pressure air outlet connected to the vacuum pump, and a drain pipe is arranged at the bottom of the liquid storage chamber.

[0005] Furthermore, a bypass branch is connected in parallel on both sides of the primary filter assembly on the first suction connection pipe, and a valve is provided on the first bypass branch. By providing the bypass branch, when the primary filter assembly needs to be closed to clean the internal residue, the mixture can enter the subsequent filter assembly from the bypass branch under the suction action of the vacuum pump for processing, so that the entire dewatering vacuum station can work without stopping, ensuring the subsequent processing efficiency.

[0006] Furthermore, a filter element is provided in the filter body, and a valve 2, a filter body and a valve 3 are provided in sequence on the part of the air extraction connecting pipe 1 located in the bypass branch pipe, and a balancing branch pipe with a valve 4 installed is provided on the part of the air extraction connecting pipe 1 located between the filter body and the valve 3. The filter element is used to filter impurities in the mixture, and the filtered water is located in the filter element and the filter body. It should be noted that the filter body needs to process the internal residue and water every time it is used for a period of time.

[0007] The whole process realizes the automatic cleaning of residues and water through the control of multiple valves, while also ensuring the uninterrupted operation of the vacuum station, thereby ensuring the processing efficiency of subsequent products.

[0008] Furthermore, the gas-liquid separation chamber is located above the liquid storage chamber, a liquid outlet is provided at the bottom of the gas-liquid separation chamber, the liquid inlet pipe connects the liquid outlet and the liquid inlet on the liquid storage chamber, a liquid discharge pipe is connected to the bottom of the liquid storage chamber, a one-way valve and a valve are respectively provided on the liquid inlet pipe and the liquid discharge pipe, the side of the gas-liquid separation chamber is connected to the top of the liquid storage chamber through an air pressure balance pipe, a valve is provided on the air pressure balance pipe, a pressure regulating pipe is externally connected to the part of the air pressure balance pipe between the valve six and the liquid storage chamber, a valve is provided on the pressure regulating pipe, and a liquid level sensor is provided in the liquid storage chamber.

[0009] By setting the one-way valve 1, one-way transmission is achieved between the gas-liquid separation chamber and the liquid storage chamber 1. The mixture of water vapor, a small amount of water and impurities after passing through the primary filter component and the bypass branch pipe enters the gas-liquid separation chamber. In the working state, the one-way valve 1 and the valve 6 are in a normally open state. The opening of the one-way valve 1 allows the water and impurities in the gas-liquid separation chamber to enter the liquid storage chamber 1 along the liquid inlet pipe 1 for collection. The opening of the valve 6 makes the gas-liquid separation chamber and the liquid storage chamber 1 both in a negative pressure state, and the air pressure is equal. The valve 7 and the valve 8 are in a normally closed state, and the gas containing only water vapor flows from the exhaust port into the exhaust connection pipe 2, and finally enters the water-gas separation component;

[0010] When the impurities and water in the liquid storage chamber 1 reach the monitoring range of the liquid level sensor 1, the water in the liquid storage chamber 1 needs to be drained. At this time, the external controller controls valve 6 to close and valve 7 to open, and air enters the liquid storage chamber 1, so that the negative pressure state is no longer maintained inside. The one-way valve 1 is cut off, and the valve 8 can be opened with a delay. The water and impurities in the liquid storage chamber 1 can be discharged from the drain pipe under the action of air pressure and collected uniformly.

[0011] Furthermore, the top of the gas-liquid separation chamber is provided with an exhaust port connected to the second exhaust connection pipe, and the bottom of the first liquid storage chamber is provided with a drain port for connecting to a drain pipe. By providing the exhaust port, the gas containing only water vapor enters the water-gas separation component through the second exhaust connection pipe under the suction action of the vacuum pump, and the installation of the drain pipe is facilitated by providing the drain port.

[0012] Furthermore, a condenser is provided in the condensation bin, and a second liquid outlet is provided at the bottom of the condensation bin, and the second liquid outlet is connected to the second liquid storage chamber via a second liquid inlet pipe, and a second one-way valve is provided on the second liquid inlet pipe, and a side of the second liquid storage chamber other than the second liquid inlet is connected to a negative pressure outlet via a second air pressure balance pipe, and the three-way valve is located on the second air pressure balance pipe, and a second liquid level sensor is provided on the top of the second liquid storage chamber, and when the water level rises to the second liquid level sensor, the three-way valve operates to discharge the water in the second liquid storage chamber out of the second liquid storage chamber through the drain pipe.

[0013] The water vapor is pumped into the condensation chamber through the second exhaust connection pipe, and condensed into water under the action of the condenser, thereby effectively removing moisture from the gas, so that the gas subsequently entering the vacuum pump will not cause the emulsification of the lubricating oil in the vacuum pump.

[0014] Furthermore, a water vapor inlet connected to the second air extraction connecting pipe is provided on the top of the condensation bin, and a second liquid inlet for connecting to the second liquid inlet pipe is provided on the second liquid storage chamber.

[0015] Furthermore, a cooling fan is arranged inside the frame near the water-gas separation component to prevent the vacuum station from overheating when used for a long time.

[0016] Beneficial effects of the utility model:

[0017] The utility model adopts a primary filter component, a secondary filter component, a water-gas separation component and a bypass branch pipe to cooperate with each other to effectively remove impurities and water in the vacuum gas and separate the water and gas in the pipeline, thereby preventing water vapor and impurities from entering the vacuum pump and causing damage to the machinery, thereby reducing the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an isometric view of the overall structure of an embodiment of the utility model;

[0019] Figure 2 This is a working state logic diagram of an embodiment of the utility model;

[0020] Figure 3 It is a partial structural isometric view of an embodiment of the utility model;

[0021] In the figure: 1, frame; 2, primary filter assembly; 21, filter body; 22, filter element; 23, residue discharge pipe; 24, valve two; 25, valve three; 26, valve four; 27, valve five; 3, intermediate filter assembly; 31, gas-liquid separation chamber; 32, liquid storage chamber one; 33, liquid level sensor one; 34, one-way valve one; 35, liquid outlet one; 36, liquid inlet one; 37, liquid inlet pipe one; 38, liquid discharge port; 39, valve six; 310, valve seven; 311, valve eight; 312, air pressure balance pipe one; 313, discharge Liquid pipe; 314, pressure regulating pipe; 315, exhaust port; 4, water vapor separation component; 41, water vapor inlet; 42, condensation chamber; 43, condenser; 44, negative pressure outlet; 45, second liquid outlet; 46, second one-way valve; 47, second liquid storage chamber; 48, second liquid inlet; 49, drain pipe; 410, three-way valve; 411, second air pressure balance pipe; 412, second liquid level sensor; 5, first exhaust connection pipe; 6, negative pressure inlet; 7, bypass branch pipe; 8, second exhaust connection pipe; 9, support frame; 10, cooling fan; 11, slag discharge main pipe. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] See attached Figures 1 to 3 As shown, a dewatering vacuum station in this embodiment is a dewatering vacuum station used to draw gas into a vacuum pump, including a frame 1 and an exhaust connection pipe 5; one end of the exhaust connection pipe 5 is a negative pressure air inlet 6, a primary filter component 2 is arranged on the exhaust connection pipe 5, and the upper air outlet end is connected to the intermediate filter component 3, the primary filter component 2 includes a filter body 21, a residue discharge pipe 23 is connected to the bottom of the filter body 21, the intermediate filter component 3 includes a gas-liquid separation chamber 31 and a liquid storage chamber 32 connected thereto through a liquid inlet pipe 37, the gas-liquid separation chamber 31 is connected to a water-gas separation component 4 through an exhaust connection pipe 8, the water-gas separation component 4 includes a condensation chamber 42, a liquid storage chamber 47 connected thereto through a liquid inlet pipe 2, and a negative pressure air outlet 44 connected to the vacuum pump, and a drain pipe 49 is arranged at the bottom of the liquid storage chamber 47.

[0024] When the vacuum pump is evacuating air, a mixture containing water, gas and water vapor enters the primary filter component 2 through the negative pressure air inlet 6 on the exhaust connection pipe 5. The primary filter component 2 filters the impurities in the mixture, and the impurities and the filtered water remain in the filter body 21. There are a small amount of impurities, water and water vapor in the filtered mixture. At this time, the mixture enters the intermediate filter component 3 for a second filtration under the continuous suction of the vacuum pump. A small amount of impurities and water in the mixture remain in the gas-liquid separation chamber 31, and flow into the liquid storage chamber 32 through the liquid inlet pipe 37 for collection. The mixture containing only water vapor enters the water-gas separation component 4 from the exhaust connection pipe 8. The condenser 43 in the condensation chamber 42 condenses the water vapor to liquefy the gas into water, and enters the liquid storage chamber 47 through the liquid inlet pipe 2 for collection. At this time, the gas discharged from the negative pressure outlet 44 on the condenser into the vacuum pump is a clean gas without impurities and moisture, thereby effectively ensuring the service life of the vacuum pump and avoiding damage to the vacuum pump.

[0025] The exhaust connection pipe 1 5 is connected in parallel with a bypass branch pipe 7 on both sides of the primary filter assembly 2, and a valve 1 is provided on the bypass branch pipe 7. By providing the bypass branch pipe 7, when the primary filter assembly 2 needs to be closed to clean the internal residue, the mixture can enter the subsequent filter assembly from the bypass branch pipe 7 under the suction action of the vacuum pump for processing, so that the whole dewatering vacuum station can work without stopping, and the subsequent processing efficiency is guaranteed.

[0026] The filter body 21 is provided with a filter element 22, the portion of the air extraction connecting pipe 1 5 located in the bypass branch pipe 7 is provided with a valve 2 24, a filter body 21 and a valve 3 25 in sequence, and the portion of the air extraction connecting pipe 1 5 located between the filter body and the valve 3 25 is provided with a balancing branch pipe with a valve 4 26 installed. The filter element 22 is used to filter impurities in the mixture, and the filtered water is located in the filter element 22 and the filter body 21. It should be noted that the filter body 21 needs to process the internal residue and water every time it is used for a period of time.

[0027] When it is necessary to process the residue and water, the external controller controls the valve 1 on the bypass branch pipe 7 to open, and closes the valve 2 24 and the valve 3 25. At this time, the mixture sucked by the vacuum pump enters the intermediate filter assembly 3 from the bypass branch pipe 7, and the filter body 21 does not work. Then the valve 4 26 and the valve 5 27 are opened. The opening of the valve 4 26 allows the inside of the filter body 21 to exchange gas with the outside, and the inside is no longer in a negative pressure state. The opening of the valve 5 27 allows the filter residue and water in the filter element 22 to be discharged into the waste residue collection bucket through the residue discharge pipe 23 and the residue discharge main pipe 11 connected to the residue discharge pipe 23 under the action of air pressure for unified collection.

[0028] After the filter body 21 is cleaned, the valve 1 is closed again, and the valve 2 24 and the valve 3 25 are opened to resume normal operation.

[0029] The whole process realizes the automatic cleaning of residues and water through the control of multiple valves, while also ensuring the uninterrupted operation of the vacuum station, thereby ensuring the processing efficiency of subsequent products.

[0030] The mixture filtered by the above-mentioned primary filter component 2 enters the secondary filter component 3. It should be noted that since the external controller sets the cleaning time of the filter body 21, when the bypass branch 7 is working, a small amount of impurities and water will also follow the water vapor into the secondary filter component 3, and will be filtered uniformly by the secondary filter component 3.

[0031] The gas-liquid separation chamber 31 is located above the liquid storage chamber 32, and a liquid outlet 35 is provided at the bottom of the gas-liquid separation chamber 31. The liquid inlet pipe 37 connects the liquid outlet 35 and the liquid inlet 36 on the liquid storage chamber 32. A liquid discharge pipe 313 is connected to the bottom of the liquid storage chamber 32. A one-way valve 34 and a valve eight 311 are respectively provided on the liquid inlet pipe 37 and the liquid discharge pipe. The side of the gas-liquid separation chamber 31 is connected to the top of the liquid storage chamber 32 through an air pressure balance pipe 312. A valve six 39 is provided on the air pressure balance pipe 312. A pressure regulating pipe 314 is externally connected to the portion of the air pressure balance pipe 312 between the valve six 39 and the liquid storage chamber 32. A valve seven 310 is provided on the pressure regulating pipe 314. A liquid level sensor 33 is provided in the liquid storage chamber 32.

[0032] By setting the one-way valve 1 34, one-way transmission is achieved between the gas-liquid separation chamber 31 and the liquid storage chamber 1 32. The mixture of water vapor, a small amount of water and impurities after passing through the primary filter component 2 and the bypass branch pipe 7 enters the gas-liquid separation chamber 31. In the working state, the one-way valve 1 34 and the valve 6 39 are in a normally open state. The opening of the one-way valve 1 34 allows the water and impurities in the gas-liquid separation chamber 31 to enter the liquid storage chamber 1 32 along the liquid inlet pipe 1 37 for collection. The opening of the valve 6 39 makes the gas-liquid separation chamber 31 and the liquid storage chamber 1 32 both in a negative pressure state, and the air pressure is equal. The valve 7 310 and the valve 8 311 are in a normally closed state, and the gas containing only water vapor flows from the exhaust port 315 into the exhaust connection pipe 2 8, and finally enters the water-gas separation component 4;

[0033] When the impurities and water in the liquid storage chamber 32 reach the monitoring range of the liquid level sensor 33, the water in the liquid storage chamber 32 needs to be drained. At this time, the external controller controls valve six 39 to close and valve seven 310 to open, and air enters the liquid storage chamber 32, so that the interior is no longer in a negative pressure state, the one-way valve 34 is cut off, and the valve eight 311 can be opened with a delay, and the water and impurities in the liquid storage chamber 32 can be discharged from the drain pipe under the action of air pressure and collected uniformly.

[0034] The gas-liquid separation chamber 31, the liquid storage chamber 1 32, the liquid discharge pipe and the slag discharge main pipe 11 are all located on the support frame 9 inside the frame 1, and the frame 1 is provided with a plurality of control buttons and a display screen.

[0035] It should be noted that all valves in the above embodiments are electric valves.

[0036] The top of the gas-liquid separation chamber 31 is provided with an exhaust port 315 connected to the second exhaust connection pipe 8, and the bottom of the first liquid storage chamber 32 is provided with a drain port 38 for connecting to a drain pipe. By providing the exhaust port 315, the gas containing only water vapor enters the water-gas separation component 4 through the second exhaust connection pipe 8 under the suction action of the vacuum pump, and the drain port 38 is provided to facilitate the installation of the drain pipe.

[0037] A condenser 43 is provided in the condensation bin 42, and a second liquid outlet 45 is provided at the bottom of the condensation bin 42. The second liquid outlet 45 is connected to a second liquid storage chamber 47 via a second liquid inlet pipe, and a second one-way valve 46 is provided on the second liquid inlet pipe. The side of the second liquid storage chamber 47 which is different from the second liquid inlet 48 is connected to the negative pressure outlet 44 via a second air pressure balance pipe 411. The three-way valve 410 is located on the second air pressure balance pipe 411, and a second liquid level sensor 412 is provided on the top of the second liquid storage chamber 47. When the water level rises to the position of the second liquid level sensor 412, the three-way valve 410 works to discharge the water in the second liquid storage chamber 47 out of the second liquid storage chamber 47 through the drain pipe 49.

[0038] The water vapor is pumped into the condensation chamber 42 through the exhaust connection pipe 8, and the water vapor is condensed into water under the action of the condenser 43, so that the moisture in the gas is effectively removed, so that the gas entering the vacuum pump later will not cause the emulsification of the lubricating oil in the vacuum pump;

[0039] The condensed water flows from the condensation chamber 42 along the liquid inlet pipe 2 into the liquid storage chamber 2 47 under the action of the one-way valve. Figure 2At this time, the end b on the three-way valve 410 is opened, the pressure in the condensation chamber 42 is the same as that in the liquid storage chamber 47, and both are in a negative pressure state; when the liquid level sensor 412 senses that the water level in the liquid storage chamber 47 reaches the set value, the end b on the three-way valve 410 is closed and the end a is opened, and the external air enters the liquid storage chamber 47 from the end a. At this time, the one-way valve 46 is closed, and the one-way valve 3 on the drain pipe 49 is opened. The air pressure in the liquid storage chamber 47 changes from negative pressure to positive pressure, and the water in the liquid storage chamber 47 is discharged from the drain pipe 49, thereby realizing water-gas separation.

[0040] The top of the condensation bin 42 is provided with a water vapor inlet 41 connected to the second air extraction connecting pipe 8, and the second liquid storage chamber 47 is provided with a second liquid inlet 48 for connecting to the second liquid inlet pipe.

[0041] A cooling fan 10 is arranged inside the frame 1 near the water-gas separation component 4 to prevent the vacuum station from overheating when used for a long time.

[0042] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A water removal vacuum station for pumping gas into a vacuum pump, characterized in that: It includes a frame and an exhaust connection pipe; one end of the exhaust connection pipe is a negative pressure air inlet, a primary filter assembly is arranged on the exhaust connection pipe, and the air outlet end thereof is connected to the intermediate filter assembly, the primary filter assembly includes a filter body, a residue discharge pipe is connected to the bottom of the filter body, the intermediate filter assembly includes a gas-liquid separation chamber and a liquid storage chamber connected thereto via a liquid inlet pipe, the gas-liquid separation chamber is connected to a water-gas separation assembly via an exhaust connection pipe, the water-gas separation assembly includes a condensation chamber, a liquid storage chamber connected thereto via a liquid inlet pipe, and a negative pressure air outlet connected to a vacuum pump, and a drain pipe is arranged at the bottom of the liquid storage chamber.

2. A water removal vacuum station according to claim 1, characterized in that: A bypass branch pipe is connected in parallel on both sides of the primary filter assembly on the first exhaust connection pipe, and a valve first is arranged on the first bypass branch pipe.

3. A water removal vacuum station according to claim 2, characterized in that: A filter element is arranged in the filter body, and a valve 2, a filter body and a valve 3 are arranged in sequence on the part of the exhaust connecting pipe 1 located in the bypass branch pipe, and a balancing branch pipe with a valve 4 installed is arranged on the part of the exhaust connecting pipe 1 located between the filter body and the valve 3.

4. A water removal vacuum station according to claim 1, characterized in that: The gas-liquid separation chamber is located above the liquid storage chamber 1, a liquid outlet 1 is provided at the bottom of the gas-liquid separation chamber, the liquid inlet pipe 1 connects the liquid outlet 1 and the liquid inlet 1 on the liquid storage chamber 1, a liquid discharge pipe is connected to the bottom of the liquid storage chamber 1, a one-way valve 1 and a valve 8 are respectively provided on the liquid inlet pipe 1 and the liquid discharge pipe, the side of the gas-liquid separation chamber is connected to the top of the liquid storage chamber 1 through an air pressure balance pipe 1, a valve 6 is provided on the air pressure balance pipe 1, a portion of the air pressure balance pipe 1 between the valve 6 and the liquid storage chamber 1 is externally connected to a pressure regulating pipe, a valve 7 is provided on the pressure regulating pipe, and a liquid level sensor 1 is provided in the liquid storage chamber 1.

5. A water removal vacuum station according to claim 4, characterized in that: The top of the gas-liquid separation chamber is provided with an exhaust port connected to the second exhaust connection pipe, and the bottom of the first liquid storage chamber is provided with a liquid discharge port for connecting to a liquid discharge pipe.

6. A water removal vacuum station according to claim 1, characterized in that: A condenser is provided in the condensation bin, and a liquid outlet port 2 is provided at the bottom of the condensation bin. The liquid outlet port 2 is connected to the liquid storage chamber 2 via a liquid inlet pipe 2, and a one-way valve 2 is provided on the liquid inlet pipe 2. The side of the liquid storage chamber 2 other than the liquid inlet port 2 is connected to the negative pressure outlet via an air pressure balance pipe 2, and a three-way valve is provided on the air pressure balance pipe 2. A liquid level sensor 2 is provided on the top of the liquid storage chamber 2. When the water level rises to the liquid level sensor 2, the three-way valve works to discharge the water in the liquid storage chamber 2 out of the liquid storage chamber 2 through the drain pipe.

7. A water removal vacuum station according to claim 6, characterized in that: The top of the condensing bin is provided with a water vapor inlet connected to the second air extraction connecting pipe, and the second liquid storage chamber is provided with a second liquid inlet for connecting to the second liquid inlet pipe.

8. The water removal vacuum station according to claim 1, characterized in that: A heat dissipation fan is arranged inside the frame near the water-gas separation component.

Images