A liquefied circulation pressure relief system

Abstract

The utility model discloses a liquefaction circulation pressure relief system, including a connecting pipe, a fixed box is fixedly connected to the middle end of the top of the connecting pipe, a sound and light alarm is fixedly installed at the middle end of the left side of the outer surface of the fixed box, and a discharge pipe is fixedly connected to the upper end of the front surface of the fixed box. The utility model can be connected to the gas liquefaction circulation pipe through the setting of the connecting pipe, and the pressure relief plate, the partition plate, the cross plate, the support spring, the connecting pipe, the fixed box and the discharge pipe are arranged to achieve the effect of pressure relief protection when the pressure inside the gas liquefaction circulation pipe is too large. Under the cooperation between the pressure relief plate, the L-shaped guide rod, the spiral guide groove, the rotating cylinder, the rotating shaft and the turntable, the arc-shaped magnetic strip can be driven to rotate to the left of the magnetic control switch when the pressure relief occurs, and the contacts inside the magnetic control switch can be closed under the influence of the magnetic force of the arc-shaped magnetic strip, so as to connect the circuit of the sound and light alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of gas liquefaction circulation, in particular to a liquefaction circulation pressure relief system. Background Art

[0002] The gas liquefaction cycle consists of a series of thermodynamic processes, whose function is to cool the gaseous working medium to the required low temperature and compensate for the cold loss of the system to obtain liquefied gas (or cryogenic liquid). This is different from the refrigeration cycle for the purpose of producing cold. In the refrigeration cycle, the refrigerant undergoes a closed cycle process; while for the liquefaction cycle, the gaseous cryogenic working medium not only acts as a refrigerant during the cycle, but is also liquefied and partially or completely output from the cryogenic device as a liquid product. It is used in processes that require maintaining low temperatures (such as as a coolant in cryogenic tests) or for gas separation processes (such as separating liquid air into oxygen, nitrogen, etc.). Obviously, the gas liquefaction cycle is an open cycle.

[0003] For example, a Chinese utility model provides "a pipeline pressure relief device", with the announcement number: CN217130429U. The application includes a quick connector for connecting to a pipe body and an inner thread connected to the quick connector, and also includes an outer thread connected to the inner thread, the inner thread and the outer thread thread cooperate with each other and there is a gap between them, and a rotating handwheel is provided at the end of the outer thread away from the inner thread; a pressure regulating chamber is formed between the inner thread and the outer thread, and a pressure self-adjusting device is provided in the pressure regulating chamber; the quick connector is used to connect to the pipe body, and when the fluid pressure in the pipe body is too high, the fluid flows into the pressure channel, and when the pressure is large enough, the elastic force of the spring can be overcome to push the steel ball upward, and the fluid rushes out of the pressure channel and then seeps out from the gap between the inner thread and the outer thread, and when the internal pressure is reduced and is not enough to overcome the elastic force of the spring, the steel ball is re-contacted on the pressure channel under the push of the spring, and the pipe returns to a sealed state; thereby the pipe is depressurized.

[0004] Although the pipeline pressure relief device in the above technology can be used to relieve pressure inside the gas liquefaction circulation pipeline, it is unable to effectively remind personnel when pressure relief occurs due to excessive pressure, resulting in the inability of personnel to discover and perform corresponding safety measures in time, causing the pressure relief work inside the pipeline to continue, posing certain safety hazards and failing to meet the use needs of personnel. Utility Model Content

[0005] The utility model aims to provide a liquefied circulation pressure relief system, which has the advantages of being able to provide pressure relief protection for the inside of a gas liquefied circulation pipeline and, at the same time, being able to give an alarm to personnel when pressure relief is caused by excessive pressure, so that personnel can discover the problem in time and take corresponding safety measures.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquefaction circulation pressure relief system, comprising a connecting pipe, the middle end of the top of the connecting pipe is fixedly connected to a fixed box, the middle end of the left side of the outer surface of the fixed box is fixedly installed with an audible and visual alarm, the upper end of the front surface of the fixed box is fixedly connected to a discharge pipe, the lower end of the inner cavity of the fixed box is fixedly connected to a partition, the middle end of the top of the partition is movably connected to a pressure relief plate, the middle end of the inner cavity of the fixed box is fixedly connected to a cross plate, and the middle end of the bottom of the cross plate is connected to the middle end of the top of the pressure relief plate. A supporting spring is fixedly connected between the two ends of the fixed box, a rotating shaft is movably connected to the middle end of the top of the fixed box through a bearing, a rotating disk is fixedly connected to the upper end of the rotating shaft, an arc-shaped magnetic strip is fixedly connected to the surface of the rotating disk, a rotating cylinder is fixedly connected to the bottom of the rotating shaft, a spiral guide groove is provided on the surface of the rotating cylinder, an L-shaped guide rod is movably connected to the lower end of the spiral guide groove, the bottom of the L-shaped guide rod is fixedly connected to the top of the pressure relief plate, a fixed seat ring is fixedly connected to the top of the outer surface of the fixed box, and a magnetic control switch is fixedly installed on the right end of the fixed seat ring.

[0007] As a preferred solution, flanges are fixedly connected to both sides of the connecting pipe, and a first rubber pad is fixedly connected to the surface of the flange.

[0008] As a preferred solution, a protective cover is fixedly connected to the top of the outer surface of the fixed box and located outside the fixed seat ring, and a protective baffle is fixedly connected to the upper end of the left side of the outer surface of the fixed box.

[0009] As a preferred solution, both ends of the transverse plate are movably connected with sliding rods, and the bottom of the sliding rods is fixedly connected to the top of the pressure relief plate.

[0010] As a preferred solution, the bottom of the rotating cylinder is fixedly connected to a support shaft, and the bottom of the support shaft is movably connected to the middle end of the top of the horizontal plate through a bearing.

[0011] As a preferred solution, the lower end of the L-shaped guide rod is fixedly connected to a reinforcing rod, and the bottom of the reinforcing rod is fixedly connected to the top of the pressure relief plate.

[0012] As a preferred solution, the top of the partition is fixedly connected to a second rubber pad, and the bottom of the pressure relief plate is movably connected to the top of the second rubber pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can connect with the gas liquefaction circulation pipeline through the arrangement of the connecting pipeline, and achieves the effect of pressure relief protection when the pressure inside the gas liquefaction circulation pipeline is too high through the arrangement of the pressure relief plate, the partition, the cross plate, the supporting spring, the connecting pipeline, the fixed box and the discharge pipe, and can drive the arc magnetic strip to rotate to the left side of the magnetic control switch when the pressure relief occurs under the cooperation between the pressure relief plate, the L-shaped guide rod, the spiral guide groove, the rotating cylinder, the rotating shaft and the turntable, and can close the contacts inside the magnetic control switch under the influence of the magnetic force of the arc magnetic strip, thereby connecting the circuit of the sound and light alarm, and can give an alarm prompt to the surrounding staff, so that the staff can find the pressure relief in time and make corresponding safety measures such as pressure regulation, and effectively avoid damage caused by continuous excessive pressure supply inside the gas liquefaction circulation pipeline.

[0015] The utility model facilitates personnel to connect the connecting pipe with the gas liquefaction circulation pipe through the arrangement of the flange and the first rubber pad, and effectively improves the sealing of the connection; through the arrangement of the protective cover, the fixed seat ring, the magnetic control switch, the turntable and the arc-shaped magnetic strip can be effectively protected all around; through the arrangement of the protective baffle, the top of the sound and light alarm can be effectively protected; through the arrangement of the sliding rod, the purpose of guiding the pressure relief plate and the cross plate is achieved, and the pressure relief plate is prevented from tilting during the movement; through the arrangement of the supporting shaft, the purpose of stably supporting the bottom of the rotating cylinder is achieved; through the arrangement of the reinforcing rod, the purpose of reinforcing the fixation between the L-shaped guide rod and the pressure relief plate is achieved; and through the arrangement of the second rubber pad, the sealing of the contact between the pressure relief plate and the partition is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective cover of the utility model from a top view;

[0018] Figure 3 This is a front sectional structural diagram of the fixed box of the utility model;

[0019] Figure 4 It is a schematic diagram of the right side structure of the pressure relief plate of the utility model.

[0020] In the figure: 1. fixed box; 2. discharge pipe; 3. connecting pipe; 4. flange; 5. first rubber pad; 6. sound and light alarm; 7. protective baffle; 8. protective cover; 9. turntable; 10. arc-shaped magnetic strip; 11. rotating shaft; 12. fixed seat ring; 13. magnetic control switch; 14. sliding rod; 15. supporting spring; 16. partition; 17. horizontal plate; 18. pressure relief plate; 19. second rubber pad; 20. rotating cylinder; 21. spiral guide groove; 22. supporting shaft; 23. L-shaped guide rod; 24. reinforcing rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0023] See also Figure 1-Figure 4 As shown, the utility model provides a liquefaction circulation pressure relief system, including a connecting pipe 3, a fixed box 1 is fixedly connected to the middle end of the top of the connecting pipe 3, a sound and light alarm 6 is fixedly installed on the middle end of the left side of the outer surface of the fixed box 1, a discharge pipe 2 is fixedly connected to the upper end of the front surface of the fixed box 1, a partition 16 is fixedly connected to the lower end of the inner cavity of the fixed box 1, a pressure relief plate 18 is movably connected to the middle end of the top of the partition 16, a transverse plate 17 is fixedly connected to the middle end of the inner cavity of the fixed box 1, and a support spring is fixedly connected between the middle end of the bottom of the transverse plate 17 and the middle end of the top of the pressure relief plate 18 15. The middle end of the top of the fixed box 1 is movably connected with a rotating shaft 11 through a bearing, the upper end of the rotating shaft 11 is fixedly connected with a turntable 9, the surface of the turntable 9 is fixedly connected with an arc-shaped magnetic strip 10, the bottom of the rotating shaft 11 is fixedly connected with a rotating cylinder 20, the surface of the rotating cylinder 20 is provided with a spiral guide groove 21, the lower end of the spiral guide groove 21 is movably connected with an L-shaped guide rod 23, the bottom of the L-shaped guide rod 23 is fixedly connected to the top of the pressure relief plate 18, the top of the outer surface of the fixed box 1 is fixedly connected with a fixed seat ring 12, and the right end of the fixed seat ring 12 is fixedly installed with a magnetic control switch 13.

[0024] In the present technical scheme, by setting the connecting pipe 3, it can be connected with the gas liquefaction circulation pipe. By setting the pressure relief plate 18, the partition 16, the cross plate 17, the support spring 15, the connecting pipe 3, the fixed box 1 and the discharge pipe 2, the effect of pressure relief protection when the pressure inside the gas liquefaction circulation pipe is too high is achieved. In addition, under the cooperation between the pressure relief plate 18, the L-shaped guide rod 23, the spiral guide groove 21, the rotating cylinder 20, the rotating shaft 11 and the turntable 9, the arc magnetic strip 10 can be driven to rotate to the left side of the magnetic control switch 13 when pressure relief occurs, and under the influence of the magnetic force of the arc magnetic strip 10, the contacts inside the magnetic control switch 13 can be closed, thereby connecting the circuit of the sound and light alarm 6, and an alarm can be issued to the surrounding staff, so that the personnel can timely discover the pressure relief and make corresponding safety measures such as pressure regulation, effectively avoiding damage caused by continuous excessive pressure supply inside the gas liquefaction circulation pipe. Example

[0025] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4 As shown, it is disclosed that flanges 4 are fixedly connected to both sides of the connecting pipe 3, a first rubber pad 5 is fixedly connected to the surface of the flange 4, a protective cover 8 is fixedly connected to the top of the outer surface of the fixed box 1 and located on the outside of the fixed seat ring 12, a protective baffle 7 is fixedly connected to the upper end of the left side of the outer surface of the fixed box 1, both ends of the cross plate 17 are movably connected to the sliding rod 14, the bottom of the sliding rod 14 is fixedly connected to the top of the pressure relief plate 18, the bottom of the rotating cylinder 20 is fixedly connected to the support shaft 22, the bottom of the support shaft 22 is movably connected to the middle end of the top of the cross plate 17 through a bearing, the lower end of the L-shaped guide rod 23 is fixedly connected to the reinforcing rod 24, the bottom of the reinforcing rod 24 is fixedly connected to the top of the pressure relief plate 18, the top of the partition 16 is fixedly connected to the second rubber pad 19, and the bottom of the pressure relief plate 18 is movably connected to the top of the second rubber pad 19.

[0026] In the present technical scheme, by providing the flange 4 and the first rubber pad 5, it is convenient for personnel to connect the connecting pipe 3 with the gas liquefaction circulation pipe, and the sealing of the connection is effectively improved. By providing the protective cover 8, the fixed seat ring 12, the magnetic switch 13, the turntable 9 and the arc-shaped magnetic strip 10 can be effectively protected. By providing the protective baffle 7, the top of the sound and light alarm 6 can be effectively protected. By providing the sliding rod 14, the purpose of guiding the pressure relief plate 18 and the cross plate 17 is achieved to prevent the pressure relief plate 18 from tilting during the movement. By providing the support shaft 22, the purpose of stably supporting the bottom of the rotating cylinder 20 is achieved. By providing the reinforcing rod 24, the purpose of strengthening the fixation between the L-shaped guide rod 23 and the pressure relief plate 18 is achieved. By providing the second rubber pad 19, the sealing of the contact between the pressure relief plate 18 and the partition 16 is effectively improved.

[0027] The working principle of the utility model is as follows: through the setting of the connecting pipe 3, it can be connected with the gas liquefaction circulation pipe, and when the pressure inside the gas liquefaction circulation pipe and the connecting pipe 3 is too large, the pressure relief plate 18 can be pushed to move upward and separate from the top of the partition plate 16 under the action of pressure, and at the same time, the support spring 15 at the bottom of the cross plate 17 can be compressed, so that the high pressure inside the connecting pipe 3 can be quickly discharged through the fixed box 1 and the discharge pipe 2, thereby achieving the effect of pressure relief protection when the pressure inside the gas liquefaction circulation pipe is too large, and in the process of pressure relief, under the action of the pressure relief plate 18 moving upward It can drive the L-shaped guide rod 23 to move. When the L-shaped guide rod 23 moves, it can push the rotating cylinder 20, the rotating shaft 11, the turntable 9 and the arc-shaped magnetic strip 10 to rotate through the spiral guide groove 21. Under the action of the rotation of the arc-shaped magnetic strip 10, it can be on the left side of the magnetic control switch 13, and under the action of the magnetic force of the arc-shaped magnetic strip 10, the magnetic control switch 13 can connect the circuit of the sound and light alarm 6, so that it can alarm and prompt the surrounding staff when pressure relief occurs, so that the personnel can find the pressure relief in time and make corresponding pressure regulation and other safety measures, effectively avoiding damage caused by continuous excessive pressure supply inside the gas liquefaction circulation pipeline.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A liquefaction cycle pressure relief system, comprising a connecting pipeline (3), characterized in that: The middle end of the top of the connecting pipe (3) is fixedly connected to a fixed box (1), the middle end of the left side of the outer surface of the fixed box (1) is fixedly installed with a sound and light alarm (6), the upper end of the front surface of the fixed box (1) is fixedly connected to a discharge pipe (2), the lower end of the inner cavity of the fixed box (1) is fixedly connected to a partition (16), the middle end of the top of the partition (16) is movably connected to a pressure relief plate (18), the middle end of the inner cavity of the fixed box (1) is fixedly connected to a transverse plate (17), a support spring (15) is fixedly connected between the middle end of the bottom of the transverse plate (17) and the middle end of the top of the pressure relief plate (18), and the middle end of the top of the fixed box (1) is connected to the pressure relief plate (18) through a bearing. A rotating shaft (11) is movably connected, a rotating disk (9) is fixedly connected to the upper end of the rotating shaft (11), an arc-shaped magnetic strip (10) is fixedly connected to the surface of the rotating disk (9), a rotating cylinder (20) is fixedly connected to the bottom of the rotating shaft (11), a spiral guide groove (21) is provided on the surface of the rotating cylinder (20), an L-shaped guide rod (23) is movably connected to the lower end of the spiral guide groove (21), the bottom of the L-shaped guide rod (23) is fixedly connected to the top of the pressure relief plate (18), a fixed seat ring (12) is fixedly connected to the top of the outer surface of the fixed box (1), and a magnetic control switch (13) is fixedly installed on the right end of the fixed seat ring (12).

2. A liquefaction cycle pressure relief system according to claim 1, characterized in that: Flanges (4) are fixedly connected to both sides of the connecting pipe (3), and a first rubber pad (5) is fixedly connected to the surface of the flange (4).

3. A liquefaction cycle pressure relief system according to claim 1, characterized in that: A protective cover (8) is fixedly connected to the top of the outer surface of the fixed box (1) and located outside the fixed seat ring (12), and a protective baffle (7) is fixedly connected to the upper end of the left side of the outer surface of the fixed box (1).

4. A liquefaction cycle pressure relief system according to claim 1, characterized in that: Both ends of the transverse plate (17) are movably connected to a slide rod (14), and the bottom of the slide rod (14) is fixedly connected to the top of the pressure relief plate (18).

5. A liquefaction cycle pressure relief system according to claim 1, characterized in that: The bottom of the rotating cylinder (20) is fixedly connected to a support shaft (22), and the bottom of the support shaft (22) is movably connected to the middle end of the top of the horizontal plate (17) via a bearing.

6. A liquefaction cycle pressure relief system according to claim 1, characterized in that: The lower end of the L-shaped guide rod (23) is fixedly connected to a reinforcing rod (24), and the bottom of the reinforcing rod (24) is fixedly connected to the top of the pressure relief plate (18).

7. A liquefaction cycle pressure relief system according to claim 1, characterized in that: The top of the partition plate (16) is fixedly connected to a second rubber pad (19), and the bottom of the pressure relief plate (18) is movably connected to the top of the second rubber pad (19).

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