Improved pressure equalizing tank of VPSA (Vacuum Pressure Swing Adsorption) oxygen production equipment

Abstract

The utility model relates to the technical field of pressure equalizing tanks, and discloses an improved pressure equalizing tank of VPSA (Vacuum Pressure Swing Adsorption) oxygen production equipment, which comprises a pressure equalizing tank body. According to the improved pressure equalizing tank of the VPSA oxygen production equipment, the connecting cover above the pressure equalizing tank body is connected with the tank body in a combined mode, the connecting rod is arranged on the protrusion below the connecting cover, the pressure sensor is fixed through the connecting rod, the pressure sensor is placed into the pressure equalizing tank body through the tank opening, and the pressure change condition in the tank is monitored in real time; a transmitter is arranged in the pressure sensor and can form a set with an external receiver, remote monitoring can be achieved, when the pressure in the tank is too large, the electric push rod operates to enable the push rod to move up and down in the axial direction, the exhaust cover is jacked up from the exhaust pipe, the inner side of the exhaust pipe is of a solid structure, and the electric push rod is placed in the solid structure for use. The periphery of the solid structure is of a hollow structure, when the pressure in the tank is too large, pressure relief is conducted, the device can effectively monitor the pressure in the tank and conduct pressure relief, the device is safer to use, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressure equalizing tank, concretely to an improved VPSA oxygen production equipment pressure equalizing tank. BACKGROUND

[0002] Industrial oxygen production equipment VPSA, PSA oxygen production equipment, pressurized adsorption vacuum desorption (referred to as VPSA) oxygen production equipment, namely under the condition of atmospheric pressure, using VPSA special molecular sieve selectively adsorbs nitrogen, carbon dioxide and water and other impurities in air, desorbs molecular sieve under vacuum condition, thereby cyclically produces high-purity oxygen (90%~94%).

[0003] VPSA oxygen production technology is a kind of technology for realizing oxygen separation by periodic pressure change, and pressure equalizing tank plays a crucial role in VPSA oxygen production equipment

[0004] The existing equipment lacks effective monitoring and protection pressure relief device in the pressure equalizing tank, and cannot timely understand the pressure change in the pressure equalizing tank, and is not convenient for timely protection when there is an abnormality, so there is a certain safety hazard problem when using, so that the equipment is relatively inconvenient to use, and the practicability of the equipment is low. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] The utility model aims at providing an improved VPSA oxygen production equipment pressure equalizing tank to solve the problem that the existing equipment lacks effective monitoring and protection pressure relief device in the pressure equalizing tank, cannot timely understand the pressure change in the pressure equalizing tank, and is not convenient for timely protection when there is an abnormality, so there is a certain safety hazard problem when using, so that the equipment is relatively inconvenient to use, and the practicability of the equipment is low.

[0007] (II) technical scheme

[0008] To achieve the above purpose, the utility model provides the following technical scheme: an improved VPSA oxygen production equipment pressure equalizing tank, including pressure equalizing tank body, the upper portion of pressure equalizing tank body is provided with connecting cover, the upper portion of pressure equalizing tank body inboard top is provided with combination groove, the inboard of combination groove is provided with sealing gasket, the inboard of combination groove is evenly distributed with connecting slot, and connecting slot is four groups of opposite arrangement, the middle portion of pressure equalizing tank body inboard top is provided with tank mouth, the periphery of connecting cover lower portion is evenly distributed with stake, and stake is connected to the inboard of connecting slot, the lower portion of connecting cover is evenly distributed with connecting rod, the lower portion of connecting rod is provided with pressure sensor.

[0009] Preferably, the pressure sensor is located inside the equalizing tank body, an exhaust pipe is arranged above the inside of the connecting cover, the inside of the exhaust pipe is solid structure and the periphery of the solid structure is hollow structure, and an electric push rod is fixedly arranged inside the exhaust pipe.

[0010] Preferably, an exhaust cover is arranged above the electric push rod, and an air inlet pipe is arranged on the right side of the exhaust pipe.

[0011] Preferably, a connecting pipeline is arranged above the air inlet pipe, an air inlet is arranged on the right side of the connecting pipeline, and a conveying auger is arranged inside the connecting pipeline.

[0012] Preferably, a bending hose is arranged on the left side below the equalizing tank body, and a pressure detection table is arranged above the bending hose.

[0013] Preferably, a threaded interface is arranged below the pressure detection table, the threaded interface is threadedly connected above the inside of the bending hose, and an air outlet pipe is arranged in the middle below the equalizing tank body.

[0014] Preferably, a fixing pipe is arranged below the air outlet pipe, and an air outlet control valve is arranged on the left side of the fixing pipe.

[0015] Compared with the prior art, the improved VPSA oxygen production equipment equalizing tank has the following beneficial effects:

[0016] 1. The improved VPSA oxygen production equipment equalizing tank is combined and connected with the tank body through the connecting cover above the equalizing tank body, is combined between the equalizing tank body and the connecting cover by inserting the pin below the connecting cover into the connecting insertion slot around the inside of the combination slot, the combination slot is provided with a sealing gasket for better sealing and avoiding air leakage, the connecting cover below has a protrusion combined with the tank opening, the protrusion can be better inserted into the tank opening to be buckled and sealed, the protrusion above the connecting cover below has a connecting rod for fixing the pressure sensor, the pressure sensor is placed into the equalizing tank body through the tank opening, the pressure sensor can be remotely monitored by being composed of a set of the pressure sensor and an external receiver, the electric push rod is operated when the pressure in the tank is too large to make the push rod move up and down along the axial direction, the exhaust cover is lifted from the exhaust pipe, the inside of the exhaust pipe is solid structure, the electric push rod is placed in the solid structure, the periphery of the solid structure is hollow structure, the exhaust cover is lifted by the push rod to release pressure when the pressure in the tank is too large, workers are prevented from being in danger during pressure release, the equipment can effectively monitor the pressure in the tank and release pressure, the equipment is safer and more practical.

[0017] 2、The improved VPSA oxygen production equipment equalizing tank, through the air inlet pipe, the connecting pipeline is fixed, the air inlet is arranged on the right side of the connecting pipeline, the air inlet is connected with the gas outlet part of the external VPSA oxygen production equipment, and the rotation of the conveying auger in the connecting pipeline can compress the gas and convey the gas into the equalizing tank body through the air inlet pipe; the gas conveying auger can be more rapid and avoid large loss in the conveying process; the pressure detection gauge arranged on the outer side of the equalizing tank body can more directly observe the pressure condition in the tank; the threaded interface below the pressure detection gauge is connected with the bent hose, so that the pressure detection gauge can be detected regularly, the damage of the pressure detection gauge is avoided, the normal use of the equipment is ensured, the gas in the equalizing tank body can be discharged through the fixed pipe through the air outlet pipe by rotating the air outlet control valve, the loss in the gas conveying process can be reduced, and the operation efficiency and safety of the oxygen production equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a connecting cover and equalizing tank body separation structure schematic diagram of the utility model;

[0020] Figure 3 It is an electric push rod and connecting pipeline internal detail structure schematic diagram of the utility model;

[0021] Figure 4 It is an equalizing tank body and connecting cover explosion structure schematic diagram of the utility model.

[0022] In the drawing: 1, equalizing tank body; 2, connecting cover; 3, combination groove; 4, sealing gasket; 5, connecting slot; 6, tank mouth; 7, pin pile; 8, connecting rod; 9, pressure sensor; 10, exhaust pipe; 11, electric push rod; 12, push rod; 13, exhaust cover; 14, air inlet pipe; 15, connecting pipeline; 16, air inlet; 17, conveying auger; 18, bent hose; 19, pressure detection gauge; 20, threaded interface; 21, air outlet pipe; 22, fixed pipe; 23, air outlet control valve. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figure 1 - Figure 4The utility model provides a technical scheme: An improved VPSA oxygen -making equipment equalizing tank, including equalizing tank body 1, the upper portion of equalizing tank body 1 is provided with connecting cover 2, the upper portion of equalizing tank body 1 inboard top is provided with the combination groove 3, the inboard of combination groove 3 is provided with sealing gasket 4, and the inboard of combination groove 3 evenly distributes and has connecting slot 5, and connecting slot 5 is four groups of opposite arrangement, and the middle portion of equalizing tank body 1 inboard upper portion is provided with the jar mouth 6, and the periphery of connecting cover 2 below evenly distributes and has the stake 7 of pin, and the inboard of connecting slot 5 is connected in stake 7 of pin, and the lower portion of connecting cover 2 evenly distributes and has connecting rod 8, and the lower portion of connecting rod 8 is provided with pressure sensor 9.

[0025] Pressure sensor 9 is located inboard equalizing tank body 1, and the upper portion of connecting cover 2 inboard is provided with exhaust pipe 10, and the inside of exhaust pipe 10 is solid structure and the solid structure periphery is hollow structure, and the inboard of exhaust pipe 10 is fixedly provided with electric push rod 11, and the upper portion of electric push rod 11 is provided with push rod 12, and the upper portion of push rod 12 is provided with exhaust cover 13, and the right side of exhaust pipe 10 is provided with air inlet pipe 14, and the upper portion of air inlet pipe 14 is provided with connecting pipeline 15, and the right side of connecting pipeline 15 upper portion is provided with air inlet 16, and the inboard of connecting pipeline 15 is provided with conveying screw 17.

[0026] The left side of equalizing tank body 1 outside lower portion is provided with bending hose 18, and the upper portion of bending hose 18 is provided with pressure detection table 19, and the lower portion of pressure detection table 19 is provided with screw joint 20, and the inboard of bending hose 18 upper portion is screwed in screw joint 20 below pressure detection table 19, and the middle portion of equalizing tank body 1 lower portion is provided with air outlet pipe 21, and the lower portion of air outlet pipe 21 is provided with fixed pipe 22, and the left side of fixed pipe 22 is provided with air outlet control valve 23.

[0027] Working principle: when the improved VPSA oxygen production equipment pressure equalizing tank is needed, the gas inlet 16 is connected with the gas outlet structure part of the external VPSA oxygen production equipment, and then the gas is compressed by the rotation of the conveying auger 17 in the connecting pipeline 15 and is transported into the pressure equalizing tank body 1 through the gas inlet pipe 14. The rotation of the conveying auger 17 can quickly compress the gas and guide it to the gas inlet pipe 14 to reduce the consumption in the gas transportation process. The connecting cover 2 is combined with the tank opening 6 on the lower pressure equalizing tank body 1 through the protruding part below the connecting cover 2. The connecting plug 5 in the combination groove 3 on the pressure equalizing tank body 1 is inserted into the position corresponding to the pin pile 7 below the connecting cover 2 for connection and fixation. The sealing gasket 4 in the combination groove 3 makes the connection between the connecting cover 2 and the pressure equalizing tank body 1 more tightly sealed. The pressure sensor 9 is fixed through the connecting rod 8 on the protrusion below the connecting cover 2. The pressure sensor 9 is placed inside the pressure equalizing tank body 1 through the tank opening 6 to monitor the internal pressure change in real time. The inside of the pressure sensor 9 is provided with a signal transmitter which can form a set with an external receiver to realize remote monitoring. When the pressure in the tank is too large, the electric push rod 11 operates to drive the push rod 12 to move up and down along the axial direction, so that the exhaust cover 13 is lifted from the exhaust pipe 10. The inside of the exhaust pipe 13 is solid. The electric push rod 11 is placed in the solid structure. The solid structure is provided with a hollow structure around it. When the pressure in the tank is too large, the push rod 12 lifts the exhaust cover 13 to release pressure. The device can effectively monitor the pressure in the tank and release pressure. The pressure equalizing tank body 1 is externally connected with the pressure detection table 19 through the threaded connection of the threaded interface 20 and the bent hose 18. The pressure in the pressure equalizing tank body 1 can be directly observed on site. The gas in the pressure equalizing tank body 1 can be discharged through the fixed pipe 22 and the exhaust pipe 21 by rotating the exhaust control valve 23. The exhaust pipe opening of the fixed pipe 22 can be connected with the external gas equipment.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application by those skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. An improved pressure equalization tank for a VPSA oxygen generation plant comprising a pressure equalization tank body (1) characterized by: The upper part of the equalizing tank body (1) is provided with a connecting cover (2), the upper part of the inner top of the equalizing tank body (1) is provided with a combination groove (3), the inner side of the combination groove (3) is provided with a sealing gasket (4), the inner side of the combination groove (3) is uniformly distributed with connecting insertion grooves (5), and the connecting insertion grooves (5) are four groups of opposite arrangement, the upper middle part of the inner side of the equalizing tank body (1) is provided with a tank opening (6), the periphery of the lower part of the connecting cover (2) is uniformly distributed with stakes (7), and the stakes (7) are connected to the inner side of the connecting insertion grooves (5), the lower part of the connecting cover (2) is uniformly distributed with connecting rods (8), and the lower part of the connecting rod (8) is provided with a pressure sensor (9).

2. The improved VPSA oxygen generation plant equalization tank as claimed in claim 1 wherein: The pressure sensor (9) is located in the inner side of the equalizing tank body (1), the upper part of the inner side of the connecting cover (2) is provided with an exhaust pipe (10), and the inside of the exhaust pipe (10) is a solid structure and the periphery of the solid structure is a hollow structure, the inner side of the exhaust pipe (10) is fixedly provided with an electric push rod (11).

3. The improved VPSA oxygen generation plant equalization tank as claimed in claim 2 wherein: The upper part of the electric push rod (11) is provided with a push rod (12), the upper part of the push rod (12) is provided with an exhaust cover (13), and the right side of the exhaust pipe (10) is provided with an air inlet pipe (14).

4. The improved VPSA oxygen generation plant equalization tank as claimed in claim 3 wherein: The upper part of the air inlet pipe (14) is provided with a connecting pipeline (15), the right side of the upper part of the connecting pipeline (15) is provided with an air inlet (16), and the inner side of the connecting pipeline (15) is provided with a conveying auger (17).

5. The improved VPSA oxygen generation plant equalization tank as claimed in claim 1 wherein: The left side of the lower part of the outer side of the equalizing tank body (1) is provided with a bending hose (18), and the upper part of the bending hose (18) is provided with a pressure detection table (19).

6. An improved VPSA oxygen generation plant equalization tank as claimed in claim 5 wherein: The lower part of the pressure detection table (19) is provided with a threaded interface (20), and the threaded interface (20) at the lower part of the pressure detection table (19) is threadedly connected to the upper part of the inner side of the bending hose (18), and the middle part of the lower part of the equalizing tank body (1) is provided with an air outlet pipe (21).

7. The improved VPSA oxygen generation plant equalization tank as claimed in claim 6 wherein: The lower part of the air outlet pipe (21) is provided with a fixed pipe (22), and the left side of the fixed pipe (22) is provided with an air outlet control valve (23).

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