Springback type pressure relief end socket

Abstract

The utility model discloses a springback type pressure relief end socket which comprises an end socket body, an installation portion is arranged at the lower end of the end socket body, a fixed sealing plate is correspondingly installed in the lower end of the end socket body, and a plurality of fixing rods which are evenly spaced are installed between the fixed sealing plate and the upper end of the end socket body. And the fixed sealing plates are correspondingly supported by the fixed rods. According to the sealing head, the compression resistance and the pressure relief function of the sealing head can be considered at the same time, and the internal fixed sealing head is installed on the side wall of the sealing head body and is matched with the internal movable sealing head which is compressed through the buffer spring, so that the whole sealing head body has good compression resistance; and meanwhile, the whole structure has a good pressure relief function through springback of the movable end socket, and the whole structure is ingenious and reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel heads, in particular to a rebound type pressure relief head. Background Art

[0002] In the existing head technology, the head is mainly used in conjunction with the pressure vessel. The shape of the head in the existing technology can be designed to be convex, conical, flat or a combined structure. The head in the existing technology must have good pressure resistance. Most of the heads in the existing technology use a mechanical pressure structure to achieve pressure resistance.

[0003] For example, the technical solution proposed in Publication (Announcement) No. CN218056513U, "A Double-Layered Container Head," includes an outer head body and an inner head body disposed within the outer head body, wherein a reinforcement gap is formed between the outer head body and the inner head body, wherein a reinforcement frame connecting the inner head body and the outer head body is disposed within the reinforcement gap, and wherein the reinforcement gap is filled with a reinforcement layer. This utility model has the following advantages and effects: This utility model is applicable to high-pressure operating conditions and has better practicality.

[0004] For example: the "Assembled Head" proposed by Publication (Announcement) No. CN217401681U, the technical solution includes a cover body, both sides of the cover body are provided with welds, a top cover is installed on the top of the cover body, the top of the top cover is provided with an annular groove, the right side of the cover body is connected with a clamping plate, the left side of the cover body is provided with a clamping slot, and the bottom surface of the cover body is provided with a groove. The assembled head, through the cooperation of the clamping plate and the clamping slot, can realize the splicing between the cover bodies, and at the same time, the upper and lower and left and right positions between the cover bodies can be relatively fixed, realizing the assembly of the head, avoiding the phenomenon of displacement and movement of the head during the welding process, and at the same time, it can also reduce the workload of workers, reduce welding errors and mistakes caused by the movement between the cover bodies during welding, and at the same time, it can just reduce the production burden, facilitate the production of large heads, and reduce production costs.

[0005] In the above technical solutions, the pressure resistance of the head is achieved by setting up mechanical structures and other technical solutions, such as setting up a double-layer structure or setting up an assembled structure; however, when the pressure head is used in practice, in addition to having good pressure resistance, it must also be able to release the internal pressure of the pressure vessel under certain circumstances, and also have good pressure relief capabilities. However, the existing technology cannot find a good balance between pressure resistance and pressure relief. The pressure relief mechanism usually set up is not reasonable, which will lead to a weakening of the pressure resistance. If a more complex pressure relief mechanism is set up, it will lead to inconvenient pressure relief, etc. It is impossible to take into account both pressure resistance and pressure relief at the same time, and the structural design is not reasonable.

[0006] Therefore, in order to solve the above problems, it is necessary to develop a rebound pressure relief head with a reasonable structure that can take into account both pressure resistance and pressure relief. Utility Model Content

[0007] The purpose of this utility model is to provide a rebound pressure relief head to address the shortcomings of the existing technology; its technical solution is as follows:

[0008] A rebound type pressure relief head comprises a head body, a mounting portion is provided at the lower end of the head body, a fixed sealing plate is correspondingly installed inside the lower end of the head body, and a plurality of evenly spaced fixing rods are installed between the fixed sealing plate and the upper end of the head body, and the fixed sealing plate is supported by the fixing rods;

[0009] A movable sealing plate is correspondingly installed on the upper end surface of the fixed sealing plate, and a through-hole is provided on the movable sealing plate, through which the fixed rod passes, so that the movable sealing plate is located on the upper end surface of the fixed sealing plate, and a buffer spring is correspondingly installed between the movable sealing plate and the upper end surface inside the head body, and the movable sealing plate is pressed against the fixed sealing plate as a whole by the action of the buffer spring;

[0010] The fixed sealing plate and the movable sealing plate are both provided with pressure relief holes, and the positions of the pressure relief holes on the fixed sealing plate and the movable sealing plate are staggered accordingly. A pressure relief pipe is also provided at the upper end of the head body, and a pressure relief valve is installed on the pressure relief pipe.

[0011] Furthermore, the outer diameter of the movable sealing plate is smaller than the inner diameter of the head body, so that a movable gap is left between the movable sealing plate and the side wall of the head body.

[0012] Furthermore, the perforations on the movable sealing plate are all arranged at the edge of the plate body and are evenly spaced in a ring shape, and there are at least four perforations, and the positions and numbers of the fixing rods are set accordingly.

[0013] Furthermore, the buffer springs located between the movable sealing plate and the upper end of the head body are correspondingly sleeved on the outside of the fixed rod, and the buffer springs press the movable sealing plate on the outside of the fixed rod.

[0014] Furthermore, the pressure relief holes on the movable sealing plate and the fixed sealing plate are evenly distributed in an annular shape.

[0015] Furthermore, the number of the pressure relief holes on the fixed sealing plate is greater than the number of the pressure relief holes on the movable sealing plate.

[0016] Furthermore, the pressure relief holes on the fixed sealing plate and the movable sealing plate are both configured as tapered hole structures, and the minimum inner diameter of the pressure relief hole on the fixed sealing plate is configured to be larger than the maximum inner diameter of the pressure relief hole on the movable sealing plate.

[0017] Beneficial effects: The utility model has the following beneficial effects:

[0018] 1) The head in this device can take into account both the pressure resistance and pressure relief functions of the head. The internal fixed head is installed on the side wall of the head body, and cooperates with the movable head compressed by the internal buffer spring, so that the entire head body has good pressure resistance. At the same time, the rebound of the movable head makes the overall structure have a good pressure relief function. The overall structure is ingenious and reasonable.

[0019] 2) In this device, when the pressure relief valve is opened, if the pressure inside the pressure vessel is greater than the buffer force of the movable spring, the pressure head can realize the adaptive pressure relief function, and the pressure rebound is realized under the action of the buffer spring, and the head closes the pressure relief hole, and the structural setting is reasonable;

[0020] 3) The device utilizes perforations, fixing rods, and buffer springs to correspondingly install the movable sealing plate, making the position structure of the movable sealing plate very reasonable and easy to use;

[0021] 4) The positions of the pressure relief holes on the two sealing plates in this device are staggered. When the two sealing plates are separated, pressure relief is achieved. When the two sealing plates are pressed together, pressure resistance is achieved. The structural setting is very ingenious.

[0022] 5) In this device, the pressure relief holes on both the movable sealing plate and the fixed sealing plate are set to a conical structure. At the same time, the size and outer diameter relationship of the pressure relief holes on the two sealing plates are also set accordingly, so that the air flow is smoother and more reasonable during pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the structural diagram of the utility model;

[0024] Figure 2 for Figure 1 Middle AA section view;

[0025] Figure 3 for Figure 1 Middle BB cross-section;

[0026] Figure 4 This is the position diagram of the utility model during working pressure relief;

[0027] Among them, the head body 1; the mounting part 2; the fixed sealing plate 3; the fixed rod 4; the movable sealing plate 5; the through hole 6; the buffer spring 7; the pressure relief hole 8; the pressure relief pipe 9; the pressure relief valve 10; and the movable gap 11. DETAILED DESCRIPTION

[0028] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, a rebound type pressure relief head includes a head body 1, a mounting portion 2 is provided at the lower end of the head body 1, and a fixed sealing plate 3 is correspondingly installed inside the lower end of the head body 1, and a plurality of evenly spaced fixing rods 4 are installed between the fixed sealing plate 3 and the upper end of the head body 1, and the fixed sealing plate 3 is supported by the fixing rods 4;

[0030] A movable sealing plate 5 is also installed on the upper end surface of the fixed sealing plate 3, and a through-hole 6 is provided on the movable sealing plate 5. The fixing rod 4 passes through the through-hole 6, so that the movable sealing plate 5 is located on the upper end surface of the fixed sealing plate 3. A buffer spring 7 is also installed between the movable sealing plate 5 and the upper end surface inside the head body 1. The buffer spring 7 presses the movable sealing plate 5 as a whole onto the fixed sealing plate 3;

[0031] Pressure relief holes 8 are correspondingly provided on the fixed sealing plate 3 and the movable sealing plate 5, and the positions of the pressure relief holes 8 on the fixed sealing plate 3 and the movable sealing plate 5 are correspondingly staggered, and a pressure relief pipe 9 is also provided at the upper end of the head body 1, and a pressure relief valve 10 is installed on the pressure relief pipe 9.

[0032] The outer diameter of the movable sealing plate 5 is smaller than the inner diameter of the head body 1 , so that a movable gap 11 is left between the movable sealing plate 5 and the side wall of the head body 1 .

[0033] The through holes 6 on the movable sealing plate 5 are all arranged at the edge of the plate body and are evenly spaced in a ring shape. There are at least four through holes 6 , and the positions and number of the fixing rods 4 are set accordingly.

[0034] The buffer springs 7 located between the movable sealing plate 5 and the upper end of the head body 1 are correspondingly sleeved on the outside of the fixed rod 4 , and the buffer springs 7 press the movable sealing plate 5 on the outside of the fixed rod 4 .

[0035] The pressure relief holes 8 on the movable sealing plate 5 and the fixed sealing plate 3 are evenly distributed in an annular shape.

[0036] The number of pressure relief holes 8 on the fixed sealing plate 3 is greater than the number of pressure relief holes 8 on the movable sealing plate 5; the pressure relief holes 8 on the fixed sealing plate 3 and the movable sealing plate 5 are both set to a conical hole structure, and the minimum inner diameter of the pressure relief holes 8 on the fixed sealing plate 3 is set to be greater than the maximum inner diameter of the pressure relief holes 8 on the movable sealing plate 5.

[0037] like Figure 4As shown, in the technical solution of the present device, when pressure relief is not required, the fixed sealing plate is fixed on the side wall of the head body, and the movable sealing plate on the upper end face is pressed and fixed by the buffer spring. When the pressure relief pipe is not opened, the fixed installation of the fixed sealing plate itself and the pressure of the buffer spring of the movable sealing plate make the pressure head have good pressure resistance, and the structural setting is very reasonable.

[0038] When the pressure is released, the pressure vessel can be adaptively released. First, the pressure relief valve on the pressure relief pipe needs to be opened. The airflow pressure entering the pressure vessel will first be pressed on the fixed sealing plate. The fixed sealing plate itself is fixed on the side wall of the head body. The fixed sealing plate generates pressure resistance. When the pressure in the pressure vessel is very high, the airflow enters the conical pressure relief hole on the fixed sealing plate, which corresponds to the movable sealing plate on the inside. When the airflow pressure is greater than the elastic force of the buffer spring, the movable sealing plate is gradually displaced, and air is generated between the movable sealing plate and the fixed sealing plate. When there is a flow gap, the airflow will be discharged from the pressure relief hole on the movable sealing plate, and then discharged upward from the position of the pressure relief pipe. When the pressure relief is completed, the airflow pressure in the pressure vessel is less than the elastic force of the buffer spring, the buffer spring will press the movable sealing plate accordingly, so that the movable sealing plate is reset. The movable sealing plate is pressed against the fixed sealing plate accordingly, and the perforations on the two sealing plates are correspondingly blocked to achieve the sealing of the airflow. At the same time, the pressure relief valve of the pressure relief pipe on the head body can be closed to achieve adaptive rebound pressure relief. The structural design is very clever and reasonable.

[0039] The above specific implementation method is only a preferred embodiment of the present invention and is not intended to limit the implementation and scope of the claims of the present invention. All equivalent changes and modifications made based on the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A rebound pressure relief head, characterized by: The invention comprises a head body (1), a mounting portion (2) is provided at the lower end of the head body (1), a fixed sealing plate (3) is correspondingly installed inside the lower end of the head body (1), and a plurality of evenly spaced fixing rods (4) are installed between the fixed sealing plate (3) and the upper end of the head body (1), and the fixed sealing plate (3) is correspondingly supported by the fixing rods (4); A movable sealing plate (5) is correspondingly mounted on the upper end surface of the fixed sealing plate (3), and a through hole (6) is provided on the movable sealing plate (5). The fixed rod (4) passes through the through hole (6), so that the movable sealing plate (5) is located on the upper end surface of the fixed sealing plate (3). A buffer spring (7) is correspondingly mounted between the movable sealing plate (5) and the upper end surface inside the head body (1), and the movable sealing plate (5) is pressed against the fixed sealing plate (3) as a whole by the action of the buffer spring (7); The fixed sealing plate (3) and the movable sealing plate (5) are both provided with corresponding pressure relief holes (8), and the positions of the pressure relief holes (8) on the fixed sealing plate (3) and the movable sealing plate (5) are correspondingly staggered. The upper end of the sealing head body (1) is also provided with a pressure relief pipe (9), and a pressure relief valve (10) is installed on the pressure relief pipe (9).

2. The rebound pressure relief head according to claim 1 is characterized in that: The outer diameter of the movable sealing plate (5) is smaller than the inner diameter of the head body (1), so that a movable gap (11) is left between the movable sealing plate (5) and the side wall of the head body (1).

3. The rebound pressure relief head according to claim 2 is characterized in that: The perforations (6) on the movable sealing plate (5) are all arranged at the edge of the plate body and are evenly spaced in a ring shape. There are at least four perforations (6), and the positions and numbers of the fixing rods (4) are set accordingly.

4. The rebound pressure relief head according to claim 3 is characterized in that: The buffer springs (7) located between the movable sealing plate (5) and the upper end of the sealing head body (1) are correspondingly sleeved on the outside of the fixed rod (4), and the buffer springs (7) press the movable sealing plate (5) on the outside of the fixed rod (4).

5. The rebound pressure relief head according to claim 1 is characterized in that: The pressure relief holes (8) on the movable sealing plate (5) and the fixed sealing plate (3) are both evenly distributed in an annular shape.

6. The rebound pressure relief head according to claim 5 is characterized in that: The number of the pressure relief holes (8) on the fixed sealing plate (3) is greater than the number of the pressure relief holes (8) on the movable sealing plate (5).

7. The rebound pressure relief head according to claim 6 is characterized in that: The pressure relief holes (8) on the fixed sealing plate (3) and the movable sealing plate (5) are both configured as tapered hole structures, and the minimum inner diameter of the pressure relief hole (8) on the fixed sealing plate (3) is configured to be larger than the maximum inner diameter of the pressure relief hole (8) on the movable sealing plate (5).

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