Teflon mould pressing pipe fitting pressurizing device
By designing an automated PTFE molded pipe pressurization device, the problems of high cost and uneven pressurization caused by manual operation in the existing technology have been solved. It achieves efficient and uniform pressurization and pressure holding, reduces labor intensity, and improves production efficiency.
Patent Information
- Application Number
- CN202520550092.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing PTFE pipeline pressurization devices require manual operation, resulting in high labor costs and uneven pressurization, making it difficult to achieve automated operation.
A pressurization device was designed, comprising an autoclave, a water pump, a motor, a controller, and a pressurizing pump. The autoclave is pressurized and maintained through an automated system. The motor provides power, and the pressure gauge controls the pressure and time, thus achieving automated operation.
It improves pressurization efficiency and uniformity, reduces manual intervention, lowers labor intensity, ensures product quality, and achieves automated production.
Smart Images

Figure CN223931334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PTFE tube pressurization and pressure holding technology, specifically to a PTFE molded tube pressurization device. Background Technology
[0002] PTFE pipes are widely used in chemical, petroleum, pharmaceutical and other related industries. Existing PTFE-lined pressurization devices generally place the sealed pipe in an autoclave, with a pressure gauge installed on the outside of the autoclave. After sealing the autoclave, water pressure is increased to 25-30 MPa through the water inlet and maintained for 10-30 seconds. The current process requires manual visual inspection of the pressure gauge and timing of the pressure-maintaining autoclave, resulting in high labor costs. Utility Model Content
[0003] To achieve the above objectives, this utility model provides the following technical solution:
[0004] A pressurizing device for PTFE molded pipe fittings includes an autoclave, which is located at one end of a water tank. A water pump is installed inside the water tank, and a first valve is installed at the upper end of the water pump. A motor is installed at the upper end of the water tank, and an electric switch is installed at the upper end of the motor. Controllers are installed on both sides of the motor. One end of the motor is connected to a second pressurizing pump, which is connected to a first pressurizing pump. A pressure gauge is connected to the upper end of the first pressurizing pump, which is also connected to the water pump. An autoclave inlet pipe is installed on one side of the second pressurizing pump, and the other end of the autoclave inlet pipe is connected to the autoclave. An autoclave return pipe is connected to the lower end of the autoclave, and the other end of the autoclave return pipe is connected to the water tank. A second valve is installed at the upper end of the autoclave return pipe.
[0005] Preferably, the water pump is bolted to the bottom plate of the water tank, the water pump is bolted to the first valve, and the water pump and the first booster pump are connected by a pipeline.
[0006] Preferably, the first pressurizing pump is fixedly connected to the pressure gauge, the first pressurizing pump and the second pressurizing pump are connected by a pipeline, and the pressure gauge is installed on the second pressurizing pump.
[0007] Preferably, the second pressurizing pump is connected to the motor output end, the autoclave inlet pipe is fixedly connected to the second pressurizing pump, and the autoclave inlet pipe is fixedly connected to the upper end of the autoclave.
[0008] Preferably, the controller is bolted to the water tank, and the controller is connected to the power switch via a pipe, with electrical wires arranged inside the pipe.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] By injecting water into the autoclave and pressurizing it, the rubber liner is continuously pressurized and maintained. The motor powers the second pressurizing pump. Once the pressure gauge reaches the required pressure, the motor stops, and the autoclave maintains pressure. This improves efficiency by applying pressure quickly and evenly, thus increasing production efficiency. The control system allows for precise adjustment of pressure and duration, ensuring product quality. It also enables automated operation, reducing manual intervention and labor intensity. Attached Figure Description
[0011] Figure 1 This is a perspective view of the present utility model;
[0012] Figure 2 This is the front view of the present invention;
[0013] Figure 3 This is a top view of the present invention.
[0014] Figure label annotations: 1. Water tank; 2. Second booster pump; 3. Power switch; 4. Motor; 5. Controller; 6. First valve; 7. Water pump; 8. Autoclave; 9. Autoclave inlet pipe; 10. First booster pump; 11. Autoclave return pipe; 12. Second valve; 13. Pressure gauge. Detailed Implementation
[0015] 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.
[0016] Example 1, as Figure 1-3 As shown, a pressurizing device for PTFE molded pipe fittings includes an autoclave 8, which is located at one end of a water tank 1. A water pump 7 is installed inside the water tank 1, and a first valve 6 is installed at the upper end of the water pump 7. A motor 4 is installed at the upper end of the water tank 1, and an electric switch 3 is installed at the upper end of the motor 4. Controllers 5 are installed on both sides of the motor 4. One end of the motor 4 is connected to a second pressurizing pump 2, which is connected to a first pressurizing pump 10. A pressure gauge 13 is connected to the upper end of the first pressurizing pump 10, which is also connected to the water pump 7. An autoclave inlet pipe 9 is installed on one side of the second pressurizing pump 2, and the other end of the autoclave inlet pipe 9 is connected to the autoclave 8. An autoclave return pipe 11 is connected to the lower end of the autoclave 8, and the other end of the autoclave return pipe 11 is connected to the water tank 1. A second valve 12 is installed at the upper end of the autoclave return pipe 11.
[0017] During operation, the first valve 6 is opened, and the water pump 7 delivers the water in the water tank 1 to the first pressurizing pump 10 for pressurization. The water is then delivered to the second pressurizing pump 2 for secondary pressurization. During secondary pressurization, the motor 4 pushes the water into the pressure vessel inlet pipe 9 and then into the pressure vessel 8. Once the pressure gauge reaches the specified pressure, the motor stops, and the pressure vessel 8 maintains pressure. After pressure maintenance, the second valve 12 is opened, and the high-pressure water enters the water tank from the pressure vessel return pipe.
[0018] In Example 2, the first valve 6 and the second valve 12 are replaced with a first solenoid valve and a second solenoid valve. The autoclave 8 is located at one end of the water tank 1. A water pump 7 is installed inside the water tank 1. The first solenoid valve 6 is installed on the upper end of the water pump 7. A motor 4 is installed on the upper end of the water tank 1. An electric switch 3 is installed on the upper end of the motor 4. Controllers 5 are installed on both sides of the motor 4. One end of the motor 4 is connected to the second pressurizing pump 2. The second pressurizing pump 2 is connected to the first pressurizing pump 10. A pressure gauge 13 is connected to the upper end of the first pressurizing pump 10. The first pressurizing pump 10 is connected to the water pump 7. An autoclave inlet pipe 9 is installed on one side of the second pressurizing pump 2. The other end of the autoclave inlet pipe 9 is connected to the autoclave 8. An autoclave return pipe 11 is connected to the lower end of the autoclave 8. The other end of the autoclave return pipe 11 is connected to the water tank 1. The second solenoid valve 12 is installed on the upper end of the autoclave return pipe 11.
[0019] During operation, the first solenoid valve opens, and the water pump 7 delivers water from the water tank 1 to the first pressurizing pump 10 for pressurization. Then, it delivers the water to the second pressurizing pump 2 for secondary pressurization. During secondary pressurization, the motor 4 pushes the water into the pressure vessel inlet pipe 9 and then into the pressure vessel 8. After the pressure gauge reaches the specified pressure, the motor stops, and the pressure vessel 8 maintains pressure. After maintaining pressure, the second solenoid valve opens, and the high-pressure water enters the water tank from the pressure vessel return pipe.
[0020] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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 are not intended to 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.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] 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 pressurizing device for PTFE molded pipe fittings, comprising an autoclave (8), wherein the autoclave (8) is disposed at one end of a water tank (1), characterized in that: A water pump (7) is installed in the water tank (1). A first valve (6) is installed at the upper end of the water pump (7). A motor (4) is installed at the upper end of the water tank (1). An electric switch (3) is installed at the upper end of the motor (4). A controller (5) is installed on both sides of the motor (4). One end of the motor (4) is connected to the second pressurizing pump (2). The second pressurizing pump (2) is connected to the first pressurizing pump (10). A pressure gauge (13) is connected at the upper end of the first pressurizing pump (10). The first pressurizing pump (10) is connected to the water pump (7). A high-pressure vessel inlet pipe (9) is installed on one side of the second pressurizing pump (2). The other end of the high-pressure vessel inlet pipe (9) is connected to the high-pressure vessel (8). A high-pressure vessel return pipe (11) is connected at the lower end of the high-pressure vessel (8). The other end of the high-pressure vessel return pipe (11) is connected to the water tank (1). A second valve (12) is installed at the upper end of the high-pressure vessel return pipe (11).
2. The pressurizing device for PTFE molded pipe fittings according to claim 1, characterized in that: The water pump (7) is bolted to the bottom plate of the water tank (1), the water pump (7) is bolted to the first valve (6), and the water pump (7) is connected to the first booster pump (10) through a pipeline.
3. The pressurizing device for PTFE molded pipe fittings according to claim 1, characterized in that: The first pressurizing pump (10) is fixedly connected to the pressure gauge (13). The first pressurizing pump (10) and the second pressurizing pump (2) are connected by a pipeline. The pressure gauge is installed on the second pressurizing pump (2).
4. The pressurizing device for PTFE molded pipe fittings according to claim 1, characterized in that: The second pressurizing pump (2) is connected to the output end of the motor (4), the pressure vessel inlet pipe (9) is fixedly connected to the second pressurizing pump (2), and the pressure vessel inlet pipe (9) is fixedly connected to the upper end of the pressure vessel (8).
5. The pressurizing device for PTFE molded pipe fittings according to claim 1, characterized in that: The controller (5) is bolted to the water tank (1), and the controller (5) is connected to the power switch (3) through a pipe, with wires arranged inside the pipe.