A tank connection

Abstract

This application relates to an acid tank connector, which includes a connector body, a connecting pipe, a check spring, a connector, a nitrogen inlet, and a circulation inlet. The connector body has a receiving cavity. One end of the connector body has a main inlet communicating with the receiving cavity and used for discharging chemicals, while the other end has a connecting port communicating with both the receiving cavity and the acid tank. The connecting pipe is vertically movable within the receiving cavity. One end of the connecting pipe is inserted into the main inlet, and the other end of the connecting pipe has a sealing plate for sealing the connecting port. A connecting groove is formed on the side wall of the connecting pipe. The check spring is sleeved on the connecting pipe and located between the sealing plate and the top of the receiving cavity. The connector is rotatably sleeved on the connector body for connecting to the opening of the acid tank. The nitrogen inlet is located on one side of the connector body for introducing nitrogen into the acid tank through the connector body. The circulation inlet is located on the other side of the connector body for circulating chemicals back into the acid tank through the connector body.

Description

Technical Field

[0001] This utility model relates to the field of acid tank technology, and specifically to an acid tank connector. Background Technology

[0002] Existing acid tank connectors cannot automatically disconnect from the chemicals inside the tank during disassembly. During disassembly, chemicals often drip due to gravity or backflow of pipeline residues, posing not only corrosion and safety risks to operators but also potential pollution of the surrounding environment and subsequent equipment, leading to a decrease in chemical purity. Utility Model Content

[0003] The purpose of this invention is to provide an acid tank connector that features a movable connecting pipe within the accommodating cavity. The connecting pipe is equipped with a sealing plate, and a check spring provides a pre-loaded check function. During connector installation, the male end of the acid tank lifts the connecting pipe, causing the sealing plate to move upwards and compress the check spring, opening the connection for chemical discharge. When the connector is removed, the check spring automatically returns to its original position, pressing the sealing plate back into the connection, completely cutting off the flow path and preventing residual liquid leakage, thus ensuring both operational safety and chemical cleanliness.

[0004] To achieve the above objectives, this utility model provides an acid tank connector, comprising:

[0005] The connector body has a receiving cavity inside. One end of the connector body has a main interface that communicates with the receiving cavity and is used to output chemicals. The other end of the connector body has a communication port that communicates with the receiving cavity and the acid tank.

[0006] A connecting tube is vertically movable and disposed within the accommodating cavity. One end of the connecting tube is inserted into the main interface, and the other end of the connecting tube is provided with a sealing piece for sealing the connecting port. A connecting groove is provided on the side wall of the connecting tube.

[0007] A check spring is sleeved on the connecting pipe and located between the sealing plate and the top of the receiving cavity;

[0008] A connector, rotatably fitted onto the connector body, is used to connect to the opening of the acid tank;

[0009] A nitrogen inlet is located on one side of the connector body and is used to introduce nitrogen into the acid tank through the connector body.

[0010] A circulation interface is provided on the other side of the connector body for circulating chemicals back into the acid tank through the connector body.

[0011] Optionally, the diameter of the sealing piece is larger than the diameter of the communication opening and smaller than the diameter of the receiving cavity.

[0012] Optionally, the bottom of the sealing piece is provided with a bulging female head for locking the male head and for inserting into the communication port.

[0013] Optionally, the connector body has an adjusting ring groove along its outer periphery, and the inner side of the connector has an adjusting protrusion that mates with the adjusting ring groove.

[0014] Optionally, a limiting groove is formed between the top of the accommodating cavity and the main interface, wherein the diameter of the limiting groove is smaller than the diameter of the accommodating cavity but larger than the diameter of the main interface.

[0015] Optionally, the connector body is provided with a first connecting channel and a second connecting channel. One end of the first connecting channel is connected to the nitrogen interface, and the other end of the first connecting channel passes through the other end of the connector body and is connected to the acid tank. One end of the second connecting channel is connected to the circulation interface, and the other end of the second connecting channel passes through the other end of the connector body and is connected to the acid tank.

[0016] Optionally, the connector is threaded along its outer circumference and is threadedly connected to the opening of the acid tank.

[0017] Optionally, the main interface, the nitrogen interface, and the circulation interface are threaded along their outer circumference for connection with a conduit.

[0018] The beneficial effects of this utility model are as follows: by setting a vertically movable connecting pipe in the accommodating cavity, and installing a sealing plate on the connecting pipe, and realizing the pre-load check function through a check spring; when installing the connector, the male end of the acid tank opening lifts the connecting pipe, drives the sealing plate to move upward and compresses the check spring, and the connecting port opens to allow the chemical to be discharged; when removing the connector, the check spring automatically returns, presses the sealing plate back into the connecting port, completely cuts off the flow path and prevents residual liquid leakage, taking into account both operational safety and chemical cleanliness.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic three-dimensional structural view of an acid tank connector according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of an acid tank connector according to an embodiment of the present invention;

[0022] In the diagram: 1. Connector body; 11. Receiving cavity; 12. Main interface; 13. Connecting port; 14. Adjusting ring groove; 15. Limiting groove; 16. First connecting channel; 17. Second connecting channel; 2. Connecting pipe; 21. Sealing plate; 22. Connecting groove; 23. Expanding female head; 3. Check spring; 4. Connecting piece; 41. Adjusting convex ring; 5. Nitrogen interface; 6. Circulation interface. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see Figure 1 and Figure 2A preferred embodiment of this application shows an acid tank connector including a connector body 1, a connecting pipe 2, a check spring 3, a connector 4, a nitrogen inlet 5, and a circulation inlet 6. The connector body 1 has a receiving cavity 11. One end of the connector body 1 has a main inlet 12 communicating with the receiving cavity 11 and used for discharging chemicals, and the other end of the connector body 1 has a connecting port 13 communicating with both the receiving cavity 11 and the acid tank. The connecting pipe 2 is vertically movable within the receiving cavity 11. One end of the connecting pipe 2 is inserted into the main inlet 12, and the other end of the connecting pipe 2 has a sealing piece 21 for sealing the connecting port 13. A connecting groove 22 is formed on the side wall of the connecting pipe 2. The check spring 3 is sleeved on the connecting pipe 2 and located between the sealing piece 21 and the top of the receiving cavity 11. The connector 4 is rotatably sleeved on the connector body 1 for connecting to the mouth of the acid tank. The nitrogen inlet 5 is located on one side of the connector body 1 for introducing nitrogen into the acid tank through the connector body 1. The circulation port 6 is located on the other side of the connector body 1 and is used to return the circulating chemicals to the acid tank through the connector body 1.

[0027] According to the embodiment of this utility model, a vertically movable connecting pipe 2 is provided in the accommodating cavity 11. A sealing plate 21 is installed on the connecting pipe 2, and a pre-loaded check function is achieved by a check spring 3. When installing the connector, the male end of the acid tank opening lifts the connecting pipe 2, causing the sealing plate 21 to move upward and compress the check spring 3, opening the connecting port 13 to allow the chemical to be discharged. When removing the connector, the check spring 3 automatically returns to its original position, pressing the sealing plate 21 back into the connecting port 13, completely cutting off the flow path and preventing residual liquid leakage, thus ensuring both operational safety and chemical cleanliness.

[0028] The following detailed description uses specific examples:

[0029] Specifically, please see Figure 2 The diameter of the sealing piece 21 is larger than the diameter of the connecting port 13 and smaller than the diameter of the accommodating cavity 11. This allows it to completely cover the connecting port 13 to achieve a seal, while also allowing it to slide freely up and down within the accommodating cavity 11 without interfering with the stroke of the connecting pipe 2, ensuring reliable and smooth opening and closing. At the same time, it also allows a gap between itself and the inner wall of the accommodating cavity 11, which facilitates the installation of the connector. After installation, chemicals can enter the connecting pipe 2 through the connecting port 13, the gap, and the connecting groove 22, and then be transported out through the main interface 12.

[0030] Further, please see Figure 2 The bottom of the sealing piece 21 is provided with an enlarged female head 23 for holding the male head and can be inserted into the communication port 13. When installing the connector, the male head can be precisely aligned with the enlarged female head 23 and drive the sealing piece 21 to open and close synchronously.

[0031] Please see Figure 2The connector body 1 has an adjusting ring groove 14 along its outer periphery, and the connector 4 has an adjusting protrusion 41 that mates with the adjusting ring groove 14 on its inner side. After the connector 4 is connected and fixed to the mouth of the acid tank, the connector body 1 can be finely adjusted and positioned in the horizontal plane by rotating the connector body 1, which facilitates the conduit layout of the nitrogen interface 5 and the circulation interface 6.

[0032] Specifically, please see Figure 2 A limiting groove 15 is provided between the top of the accommodating cavity 11 and the main interface 12. The diameter of the limiting groove 15 is smaller than the diameter of the accommodating cavity 11 and larger than the diameter of the main interface 12. It can limit the stroke of the connecting pipe 2 when the spring is fully extended or compressed, preventing the connecting pipe 2 from moving too high and causing the sealing piece 21 to block the main interface 12, thereby preventing the chemicals from being discharged.

[0033] Please see Figure 2 The connector body 1 is equipped with a first connecting channel 16 and a second connecting channel 17. One end of the first connecting channel 16 is connected to the nitrogen port 5, and the other end of the first connecting channel 16 passes through the connector body 1 and connects to the acid tank. One end of the second connecting channel 17 is connected to the circulation port 6, and the other end of the second connecting channel 17 passes through the connector body 1 and connects to the acid tank. In use, the main port 12 is connected to the pump via a conduit. A two-way valve is installed at the pump outlet, one side of which supplies liquid to downstream equipment, and the other side is connected to the circulation port 6 via a conduit. When downstream equipment does not require liquid supply, the two-way valve can be switched to the circulation port 6, allowing the chemicals to enter the second connecting channel 17 through the conduit and circulation port 6 and return to the acid tank, reducing waste and keeping the chemicals in a circulating state to prevent precipitation or contamination. After the connector is installed, nitrogen is introduced into the acid tank through the nitrogen port 5. This provides positive pressure to the pump, eliminating pipeline vacuum or cavitation and ensuring continuous and stable liquid output pressure. It also replenishes pressure inside the tank to maintain internal pressure balance and prevent pump cavitation or chemical evaporation caused by liquid level changes.

[0034] Specifically, please see Figure 2 The connector 4 has threads along its outer circumference and is threaded to the opening of the acid tank. The threads on the outer side of the connector 4 engage with the internal threads of the acid tank opening to achieve reliable mechanical locking and sealing, adapting to high-pressure and vibration conditions. The main interface 12, nitrogen interface 5, and circulation interface 6 have threads along their outer circumferences for connection to conduits.

[0035] In this embodiment, during connector installation, the connector 4 is first screwed onto the opening of the acid tank. The male end of the tank opening is inserted into the enlarged female end 23 at the bottom of the sealing plate 21, causing the connecting pipe 2 to move upward and compressing the check spring 3, thus opening the connecting port 13. Subsequently, the main interface 12 is connected to the pump and downstream equipment through a conduit, the circulation interface 6 is connected to the return pipeline, and the nitrogen interface 5 is connected to the nitrogen source, which can provide continuous liquid supply and can be switched to the circulation interface 6 to return to the tank at any time. When the connector is removed, the connector 4 is loosened in the opposite direction, the connecting pipe 2 moves downward, and the check spring 3 releases its elasticity to press the sealing plate 21 back into the connecting port 13, thereby automatically cutting off the chemical flow path, preventing residual liquid from dripping, and ensuring operational safety and cleanliness.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An acid drum adapter, characterized by, include: The connector body has a receiving cavity inside. One end of the connector body has a main interface that communicates with the receiving cavity and is used to output chemicals. The other end of the connector body has a communication port that communicates with the receiving cavity and the acid tank. A connecting tube is vertically movable and disposed within the accommodating cavity. One end of the connecting tube is inserted into the main interface, and the other end of the connecting tube is provided with a sealing piece for sealing the connecting port. A connecting groove is provided on the side wall of the connecting tube. A check spring is sleeved on the connecting pipe and located between the sealing plate and the top of the receiving cavity; A connector, rotatably fitted onto the connector body, is used to connect to the opening of the acid tank; A nitrogen inlet is located on one side of the connector body and is used to introduce nitrogen into the acid tank through the connector body. A circulation interface is provided on the other side of the connector body for circulating chemicals back into the acid tank through the connector body.

2. The acid bucket adapter of claim 1, wherein, The diameter of the sealing piece is larger than the diameter of the communication opening but smaller than the diameter of the accommodating cavity.

3. The acid bucket adapter of claim 1, wherein, The bottom of the sealing plate is provided with an enlarged female head for locking the male head and for inserting into the communication port.

4. The acid bucket adapter of claim 1, wherein, The connector body has an adjustment ring groove along its outer periphery, and the inner side of the connector has an adjustment protrusion that mates with the adjustment ring groove.

5. The acid bucket adapter of claim 1, wherein, A limiting groove is formed between the top of the accommodating cavity and the main interface. The diameter of the limiting groove is smaller than the diameter of the accommodating cavity but larger than the diameter of the main interface.

6. The acid bucket adapter of claim 1, wherein, The connector body is provided with a first connecting channel and a second connecting channel. One end of the first connecting channel is connected to the nitrogen interface, and the other end of the first connecting channel passes through the other end of the connector body and is connected to the acid tank. One end of the second connecting channel is connected to the circulation interface, and the other end of the second connecting channel passes through the other end of the connector body and is connected to the acid tank.

7. The acid bucket adapter of claim 1, wherein, The connector is threaded along its outer circumference and is threadedly connected to the opening of the acid tank.

8. The acid bucket adapter of claim 1, wherein, The main interface, the nitrogen interface, and the circulation interface are threaded along their outer circumference for connection with the conduit.

Images