Glass fiber reinforced plastic reaction tank sealing structure with stirring function
By employing an inclined structure of upper and lower retaining rings and a conical sealing ring design in the fiberglass reaction vessel, combined with bolts and nuts for fixing, the problem of poor sealing effect under high pressure is solved, achieving a tight connection between the vessel body and the top cover and preventing leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN ORIENTAL GARDEN PINGAN ENVIRONMENTAL PROTECTION IND CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing fiberglass reaction vessels have limited sealing performance under high pressure environments and are prone to leakage.
The design employs an upper and lower retaining ring with a beveled edge structure and a conical sealing ring, combined with bolts and nuts for fastening, to ensure a tight connection between the tank body and the top cover. The beveled edge and sealing ring work together to fill gaps and improve the sealing effect.
It effectively prevents leakage under high pressure, improves the sealing of the tank body and top cover, and ensures the safety of the reaction vessel.
Smart Images

Figure CN224208029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiberglass reaction vessel technology, and in particular to a sealing structure for a fiberglass reaction vessel with a stirring function. Background Technology
[0002] With the rapid development of the chemical industry and related sectors, reaction vessels have become indispensable equipment in chemical production. Fiberglass reaction vessels, typically made of glass fiber reinforced plastic (GFRP), are widely used in chemical, pharmaceutical, food, and environmental protection industries due to their superior physical and chemical properties. GFRP reaction vessels possess excellent corrosion resistance, high-temperature resistance, and mechanical strength, meeting the requirements of various types of chemical reactions.
[0003] Existing fiberglass reaction vessels typically consist of a tank body and a top cover, secured by bolts and a sealing ring between them. The bolts tightly bind the top cover to the tank body and compress the sealing ring, ensuring a tight seal during use. However, in practical applications, the sealing effect of a single sealing ring is limited, and leakage is still likely to occur under high pressure. Therefore, a sealing structure for fiberglass reaction vessels with a stirring function is proposed to address these issues. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a sealing structure for a fiberglass reaction vessel with a stirring function, aiming to improve the limited sealing effect of the sealing ring in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A sealing structure for a fiberglass reaction vessel with stirring function includes a vessel body, a top cover installed on the top of the vessel body, a lower retaining ring fixedly connected to the inner wall of the vessel body, an upper retaining ring fixedly connected to the inner wall of the top cover, the upper retaining ring contacting the lower retaining ring, a sealing ring fixedly connected to the bottom of the top cover, and a fixing assembly installed between the vessel body and the top cover.
[0007] The fixing component includes a first fixing ring, which is fixedly connected to the outer periphery of the top cover. A second fixing ring is fixedly connected to the outer periphery of the tank body. A bolt is slidably connected to the middle of the first fixing ring, which passes through the second fixing ring. A nut is threaded onto the outer periphery of the bolt.
[0008] As a further description of the above technical solution:
[0009] The upper retaining ring has an upper inclined edge in the middle, and the lower retaining ring has a lower inclined edge in the middle, with the upper inclined edge and the lower inclined edge fitting together.
[0010] As a further description of the above technical solution:
[0011] A slot is provided in the middle of the tank body, and the sealing ring is slidably connected to the middle of the slot;
[0012] As a further description of the above technical solution:
[0013] The second fixing ring has a through hole in the middle, and the bolt passes through the through hole;
[0014] As a further description of the above technical solution:
[0015] The upper inclined side and the lower inclined side have the same inclination angle;
[0016] As a further description of the above technical solution:
[0017] Both the sealing ring and the slot are conical, and the vertical height of the sealing ring is greater than that of the slot.
[0018] This utility model has the following beneficial effects:
[0019] 1. In this utility model, the top cover is first placed on the top of the tank, so that the upper retaining ring in the top cover is perpendicular to the lower retaining ring in the tank. At the same time, the sealing ring at the bottom of the top cover is inserted into the tank so that the upper and lower retaining rings abut against each other, thereby blocking the connection between the tank and the top cover. The sealing ring inserted into the tank further enhances the sealing effect. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of a sealing structure for a fiberglass reaction vessel with stirring function proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of the bolt structure of a sealing structure for a fiberglass reaction vessel with stirring function proposed in this utility model.
[0022] Figure 3 This is a schematic diagram of the slot structure of the sealing structure of a fiberglass reaction vessel with stirring function proposed in this utility model;
[0023] Figure 4 This is a schematic diagram of the upper inclined side of the sealing structure of a fiberglass reaction vessel with stirring function proposed in this utility model;
[0024] Figure 5 This is a schematic diagram of the sealing ring of a fiberglass reaction vessel with stirring function proposed in this utility model.
[0025] Legend:
[0026] 1. Tank body; 2. Top cover; 3. Fixing ring one; 4. Fixing ring two; 5. Upper bevel; 6. Upper retaining ring; 7. Sealing ring; 8. Bolt; 9. Nut; 10. Slot; 11. Lower retaining ring; 12. Lower bevel; 13. Through hole. Detailed Implementation
[0027] 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.
[0028] Reference Figures 1-3 This utility model provides an embodiment of a sealing structure for a fiberglass reaction vessel with a stirring function, comprising a vessel body 1, a top cover 2 installed on the top of the vessel body 1, a lower retaining ring 11 fixedly connected to the inner wall of the vessel body 1, an upper retaining ring 6 fixedly connected to the inner wall of the top cover 2, the upper retaining ring 6 contacting the lower retaining ring 11, a sealing ring 7 fixedly connected to the bottom of the top cover 2, a fixing assembly installed between the vessel body 1 and the top cover 2, the fixing assembly including a first fixing ring 3 fixedly connected to the outer periphery of the top cover 2, a second fixing ring 4 fixedly connected to the outer periphery of the vessel body 1, a bolt 8 slidably connected to the middle of the first fixing ring 3, the bolt 8 penetrating the second fixing ring 4, a nut 9 threadedly connected to the outer periphery of the bolt 8, a groove 10 opened in the middle of the vessel body 1, the sealing ring 7 slidably connected to the middle of the groove 10, and a through hole 13 opened in the middle of the second fixing ring 4, the bolt 8 penetrating the through hole 13. First, place the top cover 2 on top of the tank body 1, so that the upper retaining ring 6 and the lower inclined edge 12 are perpendicular to each other. At the same time, when placing the top cover 2, insert the sealing ring 7 into the slot 10. Then, insert the bolt 8 in the middle of the fixing ring 3 through the through hole 13 through the fixing ring 4, and tighten it with the nut 9. During the tightening process, the top cover 2 is brought into contact with the tank body 1, thereby causing the upper retaining ring 6 and the lower retaining ring 11 to fit tightly together. Under the compression of the upper retaining ring 6 and the lower retaining ring 11, the gap at the connection between the tank body 1 and the top cover 2 is reduced. The cooperation of the upper retaining ring 6 and the lower retaining ring 11 can block high-pressure gas. At the same time, the sealing ring 7 fills the gap between the tank body 1 and the top cover 2 under compression, thereby improving the sealing effect and preventing leakage under high pressure.
[0029] Reference Figure 4 and Figure 5The upper retaining ring 6 has an upper inclined edge 5 in the middle, and the lower retaining ring 11 has a lower inclined edge 12 in the middle. The upper inclined edge 5 and the lower inclined edge 12 fit together, and their inclination angles are the same. Both the sealing ring 7 and the retaining groove 10 are conical, and the vertical height of the sealing ring 7 is greater than that of the retaining groove 10. The upper inclined edge 5 and the lower inclined edge 12 allow the upper retaining ring 6 and the lower retaining ring 11 to fit more tightly. At the same time, with the width of the conical sealing ring 7 being greater than that of the retaining groove 10, the sealing ring 7 can fully fill the retaining groove 10 under compression, thereby further improving the sealing effect.
[0030] Working principle: First, place the top cover 2 on top of the tank body 1, so that the upper retaining ring 6 in the top cover 2 is perpendicular to the lower retaining ring 11 in the tank body 1. At the same time, insert the sealing ring 7 at the bottom of the top cover 2 into the tank body 1. Then, connect the fixing ring 3 and the fixing ring 4 with bolts 8 and nuts 9 and tighten them. During the tightening process, pull the top cover 2 to fit against the tank body 1 so that the upper retaining ring 6 and the lower retaining ring 11 abut against each other, thereby blocking the connection between the tank body 1 and the top cover 2. At the same time, the sealing ring 7 inserted into the tank body 1 further improves the sealing effect.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing structure for a fiberglass reaction vessel with stirring function, comprising a vessel body (1), characterized in that: The top of the tank (1) is fitted with a top cover (2), the inner wall of the tank (1) is fixedly connected with a lower retaining ring (11), the inner wall of the top cover (2) is fixedly connected with an upper retaining ring (6), the upper retaining ring (6) is in contact with the lower retaining ring (11), the bottom of the top cover (2) is fixedly connected with a sealing ring (7), and a fixing component is installed between the tank (1) and the top cover (2). The fixing component includes a fixing ring one (3), which is fixedly connected to the outer periphery of the top cover (2). A fixing ring two (4) is fixedly connected to the outer periphery of the tank body (1). A bolt (8) is slidably connected to the middle of the fixing ring one (3). The bolt (8) passes through the fixing ring two (4). A nut (9) is threadedly connected to the outer periphery of the bolt (8).
2. The sealing structure of a fiberglass reaction vessel with stirring function according to claim 1, characterized in that: The upper retaining ring (6) has an upper inclined edge (5) in the middle, and the lower retaining ring (11) has a lower inclined edge (12) in the middle, with the upper inclined edge (5) and the lower inclined edge (12) fitting together.
3. The sealing structure of a fiberglass reaction vessel with stirring function according to claim 1, characterized in that: The tank body (1) has a slot (10) in the middle, and the sealing ring (7) is slidably connected to the middle of the slot (10).
4. The sealing structure of a fiberglass reaction vessel with stirring function according to claim 1, characterized in that: The fixing ring 2 (4) has a through hole (13) in the middle, and the bolt (8) passes through the through hole (13).
5. The sealing structure of a fiberglass reaction vessel with stirring function according to claim 2, characterized in that: The upper inclined side (5) has the same inclination angle as the lower inclined side (12).
6. The sealing structure of a fiberglass reaction vessel with stirring function according to claim 3, characterized in that: Both the sealing ring (7) and the slot (10) are conical, and the vertical height of the sealing ring (7) is greater than that of the slot (10).