A sealing structure for a balance tank

Abstract

This utility model relates to the field of balance tank technology and discloses a sealing structure for a balance tank, including a tank body and a tank cover. A feed inlet is centrally located at the end of the tank cover away from the tank body. A groove is formed on the inner surface of the feed inlet. A sealing component is provided on the side of the feed inlet away from the tank cover. A first flange is fixedly installed at the end of the tank body near the tank cover. This sealing structure for a balance tank facilitates the easy installation of the sealing cover by inserting it into the feed inlet. When the sealing cover is fully inserted into the feed inlet, the sealing ring fits perfectly into the groove, further improving the sealing performance of the device. The cross-section of the sealing gasket is the same as that of the groove, facilitating quick installation of the sealing gasket. When the tank cover and tank body are closed, the sealing gasket acts as a buffer, and the compression of the sealing gasket during closure increases the contact area between the sealing gasket and the tank cover and tank body, thereby effectively improving the sealing performance between the tank cover and tank body.

Description

Technical Field

[0001] This utility model relates to the field of balance tank technology, specifically a sealing structure for balance tanks. Background Technology

[0002] The balancing tank, used in closed-loop water circulation systems, balances water volume and pressure, preventing frequent opening of safety valves and frequent replenishment by automatic water supply valves. The expansion tank, besides containing expanding water, also functions as a water supply tank. By filling the expansion tank with air, it gains a larger volume to hold the expanding water. High-pressure and low-pressure expansion tanks can be connected in parallel using their own pressure to replenish water to the pressure stabilizing system. All controls in this device are interlocked, operating automatically with minimal pressure fluctuations, ensuring safety, reliability, energy efficiency, and good economic benefits.

[0003] Chinese Utility Model Patent Publication No. CN 211302103 U discloses a balance tank. This balance tank, through the cooperation of a flow-slowing cover, a flow-slowing plate, and a liquid outlet pipe, forms a flow channel that consumes and buffers liquid eddies, so that the eddies are consumed as much as possible, providing a guarantee for subsequent processes. However, this balance tank does not have a sealing structure, which may lead to leakage of internal pre-charged gas or compressed gas during operation, resulting in an imbalance between the pressure inside the tank and the pressure system, making it less practical. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a sealing structure for a balance tank, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a sealing structure for a balance tank, including a tank body and a tank cover. The tank cover has a feed inlet at the center of the end away from the tank body. The inner surface of the feed inlet has a groove. A sealing component is provided on the side of the feed inlet away from the tank cover. A first flange is fixedly installed on the end of the tank body near the tank cover. A second flange is provided on the side of the tank cover near the tank body. A protrusion is fixedly installed on the end of the tank cover near the tank body. A second groove is provided on the end of the tank body near the tank cover. A sealing gasket is provided between the tank body and the tank cover.

[0006] The sealing assembly includes a sealing cover, and multiple sets of slots are equally spaced at one end of the sealing cover near the feed inlet. A sealing ring is provided on the inner side of the slot, and the sealing ring can be inserted into the groove.

[0007] Preferably, a support foot is fixedly installed at the end of the tank body away from the tank cover, a pressure gauge is provided on the top of the tank cover away from the feed inlet, screw holes are provided on the inner sides of the first flange and the second flange, a locking bolt and a locking nut are provided between the first flange and the second flange, and the first flange and the second flange are fixedly connected by the locking bolt and the locking nut, a liquid inlet and a connecting seat are provided on the outer side of the tank body, a sensor interface is provided on the outer side of the tank body away from the liquid inlet, and a liquid outlet is provided at the end of the tank body away from the tank cover.

[0008] The above technical solution provides stable support by fixing support feet at the bottom of the tank, and the pressure gauge on the top of the tank cover allows for real-time monitoring of the air pressure inside the tank. Combined with the sensor interface, the air pressure inside the pipe can be effectively kept in a balanced state.

[0009] Preferably, a flange ball valve is provided on the side of the liquid outlet away from the tank body, and a control valve stem is rotatably installed on the outer side of the flange ball valve.

[0010] Through the above technical solutions, the flange ball valve is tight and reliable. The sealing surface material of the ball valve is widely made of plastic, which has good sealing performance and is easy to operate. The flange ball valve can be opened and closed quickly by rotating the control valve stem. It only takes 90° to rotate from fully open to fully closed, which is convenient for remote control.

[0011] Preferably, the sealing assembly further includes a non-slip handle, and the non-slip handle is fixedly installed at the end of the sealing cap away from the can lid.

[0012] The above technical solution, by setting a non-slip handle, allows staff to manually open or close the sealing cover without the need for external tools.

[0013] Preferably, a sealing cap is inserted and installed on the side of the feed inlet away from the can lid, and the sealing ring can be snapped into the groove.

[0014] With the above technical solution, by inserting the sealing cover into the feed inlet, when the operator needs to close the feed inlet, simply align the sealing cover with the feed inlet and insert it to achieve a seal. When the sealing cover is fully inserted into the feed inlet, the sealing ring fits perfectly into the groove, further improving the sealing performance of the device.

[0015] Preferably, the cross-section of the sealing gasket is the same as the cross-section of the second groove, and the sealing gasket can be inserted into the groove.

[0016] The above technical solution allows for quick installation of the sealing gasket by using a gasket with the same cross-section as the groove. The gasket also acts as a buffer when the can lid and can body are closed, preventing damage to the contact end due to prolonged contact and thus reducing service life. Furthermore, it improves the sealing performance of the can lid and can body when they are closed.

[0017] Preferably, the radius of the protrusion is greater than the inner diameter of the second flange, and the inner diameter of the second flange is greater than the outer diameter of the can lid, and the radius of the protrusion is the same as the radius of the second groove.

[0018] With the above technical solution, when closing the can lid, the radius of the protrusion is the same as the radius of the second groove, so the protrusion at the bottom of the can lid can be aligned and installed on the top of the can body. At this time, since the inner diameter of the second flange is larger than the outer diameter of the can lid, the second flange can be moved along the outer wall of the can lid until it fits against the top of the protrusion. Then, the locking bolt passes through the screw hole, and the locking nut is connected to the thread of the locking bolt, thereby realizing the quick fixing of the first flange and the second flange. When it is necessary to clean the inside of the balance tank, the staff only needs to turn the locking nut to separate it from the locking bolt, so that the can lid can be quickly disassembled.

[0019] Compared with the prior art, the present invention provides a sealing structure for a balance tank, which has the following advantages:

[0020] 1. The balance tank uses a sealing structure. The sealing cover is installed by plugging it into the feed inlet. When the operator needs to close the feed inlet, he / she only needs to align the sealing cover with the feed inlet and insert it to achieve the seal. When the sealing cover is fully inserted into the feed inlet, the sealing ring is just stuck into the groove, which further improves the sealing performance of the device. In addition, by setting a non-slip handle, the operator can easily open or close the sealing cover manually without the need for external tools.

[0021] 2. The balance tank uses a sealing structure. The cross-section of the sealing gasket is the same as that of the second groove, which facilitates the quick installation of the sealing gasket. The sealing gasket also acts as a buffer when the tank lid and body are closed, preventing damage to the contact ends due to prolonged contact and thus reducing service life. Furthermore, the sealing gasket is compressed when the tank lid and body are closed, increasing the contact area between the sealing gasket and the tank lid and body, thereby effectively improving the sealing performance between the tank lid and body. The locking bolt passes through the threaded hole, and the locking nut is threaded to the locking bolt, enabling quick fixing of the first and second flanges. When cleaning the inside of the balance tank is required, the operator only needs to loosen the locking nut to separate it from the locking bolt, allowing for quick disassembly of the tank lid. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the connection structure between the tank body and the tank lid of this utility model;

[0025] Figure 4 This is a schematic diagram of the installation structure of the groove 2 and the sealing gasket of this utility model;

[0026] Figure 5 This is a schematic diagram of the sealing assembly structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the flange ball valve structure of this utility model.

[0028] The components are as follows: 1. Tank body; 2. Tank cover; 3. Support leg; 4. Inlet; 5. Groove 1; 6. Sealing assembly; 601. Sealing cap; 602. Slot; 603. Sealing ring; 604. Anti-slip handle; 7. Pressure gauge; 8. First flange; 9. Second flange; 10. Screw hole; 11. Protrusion; 12. Groove 2; 13. Sealing gasket; 14. Locking bolt; 15. Locking nut; 16. Liquid inlet; 17. Connecting seat; 18. Sensor interface; 19. Liquid outlet; 20. Flange ball valve; 21. Control valve stem. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-6 As shown, the present invention provides a sealing structure for a balance tank, including a tank body 1 and a tank cover 2. A feed inlet 4 is provided at the center of the end of the tank cover 2 away from the tank body 1. A groove 5 is provided on the inner surface of the feed inlet 4. A sealing component 6 is provided on the side of the feed inlet 4 away from the tank cover 2. A first flange 8 is fixedly installed at the end of the tank body 1 near the tank cover 2. A second flange 9 is provided on the side of the tank cover 2 near the tank body 1. A protrusion 11 is fixedly installed at the end of the tank cover 2 near the tank body 1. A second groove 12 is provided at the end of the tank body 1 near the tank cover 2. A sealing gasket 13 is provided between the tank body 1 and the tank cover 2.

[0031] The sealing assembly 6 includes a sealing cover 601. Multiple sets of slots 602 are equally spaced at one end of the sealing cover 601 near the feed port 4. A sealing ring 603 is provided on the inner side of the slot 602. The sealing ring 603 can be inserted into the groove 5.

[0032] Specifically, a support foot 3 is fixedly installed at the end of the tank body 1 away from the tank cover 2. A pressure gauge 7 is installed on the top of the tank cover 2 away from the feed inlet 4. Screw holes 10 are provided on the inner sides of both the first flange 8 and the second flange 9. Locking bolts 14 and locking nuts 15 are provided between the first flange 8 and the second flange 9, and the first flange 8 and the second flange 9 are fixedly connected by the locking bolts 14 and locking nuts 15. A liquid inlet 16 and a connecting seat 17 are provided on the outer side of the tank body 1. A sensor interface 18 is provided on the outer side of the tank body 1 away from the liquid inlet 16. A liquid outlet 19 is provided at the end of the tank body 1 away from the tank cover 2. The advantages are that the support foot 3 fixedly installed at the bottom of the tank body 1 provides stable support, the pressure gauge 7 on the top of the tank cover 2 facilitates real-time monitoring of the gas pressure inside the tank, and the sensor interface 18 effectively maintains a balanced gas pressure inside the pipe.

[0033] Specifically, a flanged ball valve 20 is installed on the side of the outlet 19 away from the tank body 1, and a control valve stem 21 is rotatably installed on the outside of the flanged ball valve 20. The advantages are that the flanged ball valve 20 is tight and reliable, the sealing surface material of the ball valve widely uses plastic, resulting in good sealing performance, and it is easy to operate. By rotating the control valve stem 21, the flanged ball valve 20 can be opened and closed quickly; it only requires a 90° rotation from fully open to fully closed, facilitating remote control.

[0034] Specifically, the sealing assembly 6 also includes a non-slip handle 604, which is fixedly installed on the end of the sealing cap 601 away from the can lid 2. The advantage is that by setting the non-slip handle 604, it is easy for staff to manually open or close the sealing cap 601 without the need for external tools.

[0035] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, a sealing cap 601 is inserted and installed on the side of the feed inlet 4 away from the tank cover 2, and a sealing ring 603 can be inserted into the groove 5. The advantage is that, through the insertion and installation of the sealing cap 601 and the feed inlet 4, when the operator needs to close the feed inlet 4, they only need to align the sealing cap 601 with the feed inlet 4 and insert it to achieve a seal. When the sealing cap 601 is fully inserted into the feed inlet 4, the sealing ring 603 is just inserted into the groove 5, further improving the sealing performance of the device.

[0037] Specifically, the cross-section of the sealing gasket 13 is the same as the cross-section of the groove 12, and the sealing gasket 13 can be snapped into the groove 602. The advantage is that, because the cross-section of the sealing gasket 13 is the same as the cross-section of the groove 12, it facilitates the quick installation of the sealing gasket 13. Furthermore, by setting the sealing gasket 13, it acts as a buffer when the can lid 2 and the can body 1 are closed, preventing damage to the contact end due to prolonged contact, thus reducing service life. It also improves the sealing performance between the can lid 2 and the can body 1 when they are closed.

[0038] Specifically, the radius of the protrusion 11 is larger than the inner diameter of the second flange 9, and the inner diameter of the second flange 9 is larger than the outer diameter of the can lid 2. The radius of the protrusion 11 is the same as the radius of the groove 12. The advantage is that when the can lid 2 is closed, the protrusion 11 at the bottom of the can lid 2 can be aligned and installed on the top of the can body 1 because the radius of the protrusion 11 is the same as the radius of the groove 12. At this time, because the inner diameter of the second flange 9 is larger than the outer diameter of the can lid 2, the second flange 9 can be moved along the outer wall of the can lid 2 until it fits against the top of the protrusion 11. Then, the locking bolt 14 passes through the screw hole 10, and the locking nut 15 is threadedly connected to the locking bolt 14, thereby achieving quick fixation of the first flange 8 and the second flange 9. When it is necessary to clean the inside of the balance can, the operator only needs to tighten the locking nut 15 to separate it from the locking bolt 14, which can achieve quick disassembly of the can lid 2.

[0039] Working Principle: In use, the radius of the protrusion 11 is the same as the radius of the groove 12, allowing the protrusion 11 at the bottom of the can lid 2 to be aligned and installed on the top of the can body 1. Since the inner diameter of the second flange 9 is larger than the outer diameter of the can lid 2, the second flange 9 can be moved along the outer wall of the can lid 2 until it is flush with the top of the protrusion 11. Then, the locking bolt 14 passes through the screw hole 10, and the locking nut 15 is threadedly connected to the locking bolt 14, thus quickly fixing the first flange 8 and the second flange 9. When cleaning the inside of the balance can is required, the operator only needs to unscrew the locking nut 15 to separate it from the locking bolt 14, allowing for quick disassembly of the can lid 2. The cross-section of the sealing gasket 13 is the same as the cross-section of the groove 12, facilitating its quick installation. Furthermore, the sealing gasket 13 acts as a buffer when the can lid 2 is closed to the can body 1, preventing damage to the contact end due to prolonged contact, thereby reducing the risk of injury. The compression of the sealing gasket when the lid 2 and the tank body 1 are closed effectively improves the sealing performance between the lid 2 and the tank body 1. Subsequently, the sealing cover 601 is inserted into the feed port 4. When the operator needs to close the feed port 4, they only need to align the sealing cover 601 with the feed port 4 and insert it to achieve the seal. When the sealing cover 601 is fully inserted into the feed port 4, the sealing ring 603 is just inserted into the groove 5, which further improves the sealing performance of the device. By setting the anti-slip handle 604, the operator can easily open or close the sealing cover 601 manually without the need for external tools. Finally, by setting the flange ball valve 20 at the bottom of the tank body 1, the flange ball valve 20 is tight and reliable. The sealing surface material of the ball valve is widely made of plastic, which has good sealing performance and is easy to operate. By rotating the control valve stem 21, the flange ball valve 20 can be opened and closed quickly. It only takes 90° to rotate from fully open to fully closed, which is convenient for remote control.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations 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 sealing structure for a balance tank, comprising a tank body (1) and a tank cover (2), characterized in that: The can lid (2) has a feed inlet (4) at the center of the end away from the can body (1). The inner surface of the feed inlet (4) has a groove (5). A sealing component (6) is provided on the side of the feed inlet (4) away from the can lid (2). A first flange (8) is fixedly installed on the end of the can body (1) near the can lid (2). A second flange (9) is provided on the side of the can lid (2) near the can body (1). A protrusion (11) is fixedly installed on the end of the can lid (2) near the can body (1). A second groove (12) is provided on the end of the can body (1) near the can lid (2). A sealing gasket (13) is provided between the can body (1) and the can lid (2). The sealing assembly (6) includes a sealing cover (601). The sealing cover (601) has multiple sets of slots (602) at equal intervals at one end near the feed port (4). A sealing ring (603) is provided on the inner side of the slot (602). The sealing ring (603) can be inserted into the groove (5).

2. The sealing structure for a balance tank according to claim 1, characterized in that: The tank body (1) is fixedly equipped with a support foot (3) at one end away from the tank cover (2). A pressure gauge (7) is provided on the top of the tank cover (2) away from the feed inlet (4). The inner sides of the first flange (8) and the second flange (9) are provided with screw holes (10). A locking bolt (14) and a locking nut (15) are provided between the first flange (8) and the second flange (9). The first flange (8) and the second flange (9) are fixedly connected by the locking bolt (14) and the locking nut (15). The outer side of the tank body (1) is provided with a liquid inlet (16) and a connecting seat (17). A sensor interface (18) is provided on the outer side of the tank body (1) away from the liquid inlet (16). The end of the tank body (1) away from the tank cover (2) is provided with a liquid outlet (19).

3. The sealing structure for a balance tank according to claim 2, characterized in that: A flange ball valve (20) is provided on the side of the outlet (19) away from the tank (1), and a control valve stem (21) is rotatably installed on the outside of the flange ball valve (20).

4. The sealing structure for a balance tank according to claim 1, characterized in that: The sealing assembly (6) also includes a non-slip handle (604), and the non-slip handle (604) is fixedly installed on the end of the sealing cap (601) away from the can lid (2).

5. A sealing structure for a balance tank according to claim 1, characterized in that: A sealing cap (601) is inserted and installed on the side of the feed inlet (4) away from the can cover (2), and the sealing ring (603) can be inserted into the groove (5).

6. The sealing structure for a balance tank according to claim 1, characterized in that: The cross-section of the sealing gasket (13) is the same as that of the groove (12), and the sealing gasket (13) can be inserted into the slot (602).

7. A sealing structure for a balance tank according to claim 1, characterized in that: The radius of the protrusion (11) is greater than the inner diameter of the second flange (9), and the inner diameter of the second flange (9) is greater than the outer diameter of the can lid (2). The radius of the protrusion (11) is the same as the radius of the groove (12).

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