Pressure regulating type stop safety valve

Abstract

The utility model provides a pressure regulating type stop safety valve, which relates to the technical field of safety valves and comprises a safety valve main body, a connecting pipe, a pressure relief pipe, a protective cover, a safety pressing rod, a regulating motor, a correcting vertical plate and a microcontroller, one side of the safety valve body is in butt joint with a connecting pipe, the connecting pipe is used for being communicated with a main pipeline to circulate fluid, the other side of the safety valve body is in butt joint with a pressure relief pipe, and the pressure relief pipe is used for discharging redundant fluid at high pressure. A protective cover is mounted at the upper end of the middle of the safety valve body through bolts. The safety valve is tightly connected with the main pipeline through the connecting pipe, smooth inflow of circulating fluid is guaranteed, meanwhile, the pressure relief pipe is used as a safety outlet under high pressure, potential risks caused by system overpressure are effectively prevented, and operation safety and stability of a fluid system are greatly improved. Under the condition of high pressure, redundant fluid can be rapidly discharged through the pressure relief pipe, and equipment damage or safety accidents possibly caused by pressure accumulation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a pressure-regulating stop safety valve. Background Art

[0002] In the design and operation of fluid systems, pressure control is a crucial link. Traditional safety valves often only have basic overpressure protection functions, that is, they automatically open to release excess fluid when the system pressure exceeds the set threshold, but there are obvious deficiencies in terms of adjustment accuracy, response speed, and intelligent control. With the continuous progress of industrial technology and the increasing complexity of fluid systems, higher requirements are put forward for the performance of safety valves, especially in terms of high-precision pressure regulation, rapid response, and intelligent management.

[0003] Under such a background, the pressure-regulating stop safety valve came into being. It combines the overpressure protection function of traditional safety valves with advanced adjustment technologies, aiming to achieve precise control and stable operation of the pressure of fluid systems. However, there are still many limitations in the structural design, adjustment mechanism, and intelligent level of existing pressure-regulating safety valves on the market, such as low adjustment accuracy, slow response, complex operation, and lack of intelligent monitoring and control. Summary of the Utility Model

[0004] The utility model relates to a pressure-regulating stop safety valve, which realizes efficient, precise adjustment and intelligent management of the pressure of fluid systems through innovative design and optimization, providing a strong guarantee for the safe and stable operation of fluid systems.

[0005] In the first aspect of the utility model, a pressure-regulating stop safety valve is provided, specifically including: a safety valve body, a connecting pipe, a pressure relief pipe, a protective cover, a safety pressure rod, an adjustment motor, a correction vertical plate, and a microcontroller; one side of the safety valve body is butted with a connecting pipe, and the connecting pipe is used to communicate with the main pipeline to circulate fluid. The other side of the safety valve body is butted with a pressure relief pipe, and the pressure relief pipe is used to discharge excess fluid under high pressure; the upper end of the middle part of the safety valve body is installed with a protective cover through bolts; a safety pressure rod is vertically slidably inserted into the upper end of the protective cover, and the lower end of the safety pressure rod extends into the inner cavity of the safety valve body; an adjustment motor is vertically installed on one side of the top of the protective cover, and a correction vertical plate is vertically and fixedly installed on the other side of the top of the protective cover; the microcontroller is fixedly installed at the uppermost end of the correction vertical plate.

[0006] Optionally, the connecting pipe and the pressure relief pipe are symmetrically distributed left and right and staggered up and down, and the position of the pressure relief pipe on the safety valve body is higher than that of the connecting pipe.

[0007] Optionally, an adjustment gear is provided at the upper end of the protective cover, and the safety pressure rod vertically passes through the adjustment gear.

[0008] Optionally, a threaded section is provided downward on the upward-facing rod wall of the safety pressure rod, and the threaded section is threadedly connected to the adjusting gear for perpendicular rotation;

[0009] On the upper end of the safety pressure rod, an anti-rotation guide rod is provided vertically towards one side of the correction vertical plate, and a triangular scale indicating block is vertically provided on the side wall of the end of the anti-rotation guide rod;

[0010] A ranging receiving end is provided in the middle of the upper end surface of the safety pressure rod;

[0011] At the position where the safety pressure rod is located at the upper end of the inner cavity of the safety valve body, a connecting push plate is fixedly provided. A spring is fixedly connected to the lower end of the connecting push plate, a decompression head is fixedly connected to the lower end of the spring, and a plug with a reduced diameter is provided at the lower end of the decompression head. The decompression head and the plug form a T-shaped columnar structure. Under the action of the spring, the decompression head and the plug disconnect the cavity between the connecting pipe, the safety valve body, and the pressure relief pipe.

[0012] Optionally, a driving gear is fixedly connected to the upper end of the rotating shaft of the adjusting motor. A pressing plate with an enlarged diameter is fixedly installed at the upper end of the driving gear. The driving gear meshes with the adjusting gear, and the bottom of one end of the pressing plate is tangent to the upper end surface of the adjusting gear to limit the upward movement of the adjusting gear.

[0013] Optionally, on the side plate of the correction vertical plate opposite to the anti-rotation guide rod, an activity strip hole is vertically and horizontally penetrated. The end of the anti-rotation guide rod passes through the activity strip hole, and the scale indicating block is also outside the activity strip hole. Scale bars are vertically and evenly spaced on the side hole edge of the activity strip hole corresponding to the scale indicating block;

[0014] The correction vertical plate is an inverted L-shaped structure as a whole. The upper end of the correction vertical plate is buckled on the upper end of the safety pressure rod. A ranging transmitting end is provided on the bottom surface of the upper end of the correction vertical plate corresponding to the ranging receiving end. The ranging receiving end and the ranging transmitting end are used to measure the up and down position of the safety pressure rod, and the microcontroller determines the bearable pressure value of the decompression head according to the measured value.

[0015] The present utility model provides a pressure-regulating stop safety valve, which has the following beneficial effects:

[0016] First of all, through the tight connection of the safety valve with the main pipeline, the smooth inflow of the circulating fluid is ensured. At the same time, the pressure relief pipe is used as a safety outlet under high pressure, effectively preventing potential dangers caused by system overpressure, and greatly improving the operation safety and stability of the fluid system. Under high-pressure conditions, the excess fluid can quickly be discharged through the pressure relief pipe, avoiding equipment damage or safety accidents that may be caused by pressure accumulation.

[0017] Secondly, the ingenious combination of a protective cover and a safety lever not only provides a solid barrier for critical internal components but also enables intuitive operation and monitoring of pressure regulation. The vertical sliding design of the safety lever allows operators to easily adjust its position, thereby changing the opening and closing state of the fluid channel and achieving precise control of system pressure. The introduction of a regulating motor further enables automated regulation, improving both precision and efficiency.

[0018] Furthermore, the combination of the anti-rotation guide rod and the graduated indicator block provides the operator with intuitive and accurate position indication, facilitating real-time monitoring of the safety lever's status and ensuring accuracy during adjustment. Furthermore, the introduction of a distance measurement system further enhances the system's intelligence by providing real-time monitoring and feedback of the safety lever's precise position to the microcontroller, making pressure adjustment even more precise and reliable.

[0019] Inside the safety valve body, the core pressure-regulating structure, comprised of a connecting push plate, spring, pressure-reducing head, and plug, fully utilizes the spring's elastic force to effectively block and open the fluid passage. When the safety lever position changes, it rapidly adjusts the distance between the pressure-reducing head and the plug, thereby controlling the flow and release of fluid pressure. This design is not only simple and compact, but also responsive and flexible.

[0020] Finally, the microcontroller, serving as the intelligent hub of the entire system, enables comprehensive monitoring and intelligent control of the pressure regulation process. By receiving feedback from the distance measurement system and combining it with pre-set algorithmic logic for real-time calculation and processing, the microcontroller accurately determines the current pressure tolerance of the pressure reducing head and performs corresponding display or control operations accordingly. This intelligent control method not only improves the system's automation and regulation accuracy, but also reduces the risk of human error, ensuring the efficient and stable operation of the fluid system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached figure:

[0024] Figure 1 Shows a schematic diagram of the first axial view of the present invention;

[0025] Figure 2 Shows the utility model Figure 1 The schematic diagram of the structure of the enlarged part;

[0026] Figure 3 Shows the second axonometric structural schematic diagram of the present utility model;

[0027] Figure 4 Shows the axonometric structural schematic diagram of the semi-section separation state of the present utility model.

[0028] List of reference numerals

[0029] 1. Safety valve body;

[0030] 2. Connecting pipe;

[0031] 3. Pressure relief pipe;

[0032] 4. Protection cover; 401. Adjusting gear;

[0033] 5. Safety pressure rod; 501. Threaded section; 502. Anti-rotation guide rod; 5021. Scale indicating block; 503. Distance measuring receiving end; 504. Connecting push plate; 505. Spring; 506. Pressure reducing head; 507. Plug;

[0034] 6. Adjusting motor; 601. Driving gear; 602. Pressure plate;

[0035] 7. Correction vertical plate; 701. Movable strip hole; 702. Scale strip; 703. Distance measuring transmitting end;

[0036] 8. Microcontroller. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0038] Embodiment 1: Please refer to Figures 1 to 4 :

[0039] The utility model provides a pressure-regulating cut-off safety valve, which comprises: a safety valve main body 1, a connecting pipe 2, a pressure relief pipe 3, a protective cover 4, a safety pressure rod 5, an adjusting motor 6, a correcting vertical plate 7 and a microcontroller 8; one side of the safety valve main body 1 is butted with a connecting pipe 2, and the connecting pipe 2 is used for communicating with the main pipeline to circulate fluid. The other side of the safety valve main body 1 is butted with a pressure relief pipe 3, and the pressure relief pipe 3 is used for discharging excess fluid under high pressure; the upper end of the middle part of the safety valve main body 1 is installed with a protective cover 4 through bolts; a safety pressure rod 5 is vertically and slidably inserted into the upper end of the protective cover 4, and the lower end of the safety pressure rod 5 extends into the inner cavity of the safety valve main body 1; an adjusting motor 6 is vertically installed on one side of the top of the protective cover 4, and a correcting vertical plate 7 is vertically and fixedly installed on the other side of the top of the protective cover 4; the microcontroller 8 is fixedly installed at the uppermost end of the correcting vertical plate 7.

[0040] Among them, the connecting pipe 2 and the pressure relief pipe 3 are symmetrically distributed left and right and staggered up and down, and the position of the pressure relief pipe 3 on the safety valve main body 1 is higher than that of the connecting pipe 2.

[0041] Among them, an adjusting gear 401 is arranged at the upper end of the protective cover 4, and the safety pressure rod 5 vertically passes through the adjusting gear 401.

[0042] Among them, a threaded section 501 is arranged downward on the rod wall of the safety pressure rod 5, and the threaded section 501 is vertically and rotationally screwed with the adjusting gear 401;

[0043] The upper end of the safety pressure rod 5 is vertically provided with an anti-rotation guide rod 502 on one side of the correcting vertical plate 7, and a triangular scale indicating block 5021 is vertically arranged on the side wall of the end of the anti-rotation guide rod 502;

[0044] A ranging receiving end 503 is arranged in the middle of the upper end face of the safety pressure rod 5;

[0045] At the position where the safety pressure rod 5 is located at the upper end of the inner cavity of the safety valve main body 1, a connecting push plate 504 is fixedly arranged, a spring 505 is fixedly connected to the lower end of the connecting push plate 504, a decompression head 506 is fixedly connected to the lower end of the spring 505, a plug 507 with a reduced diameter is arranged at the lower end of the decompression head 506, and the decompression head 506 and the plug 507 form a T-shaped columnar structure. Under the action of the spring 505, the decompression head 506 and the plug 507 disconnect the cavity between the connecting pipe 2, the safety valve main body 1 and the pressure relief pipe 3.

[0046] Among them, the upper end of the rotating shaft of the adjusting motor 6 is fixedly connected with a driving gear 601, a pressure plate 602 with an enlarged diameter is fixedly installed at the upper end of the driving gear 601, the driving gear 601 is meshed with the adjusting gear 401, and the bottom of one end of the pressure plate 602 is tangent to the upper end face of the adjusting gear 401 to limit the upward movement of the adjusting gear 401.

[0047] Embodiment 2, based on Embodiment 1, a movable strip hole 701 is vertically and horizontally penetrated on the side plate of the correction vertical plate 7 opposite to the anti-rotation guide rod 502. The end of the anti-rotation guide rod 502 passes through the movable strip hole 701, and the scale indicating block 5021 is also outside the movable strip hole 701. On one side hole edge of the movable strip hole 701 corresponding to the scale indicating block 5021, scale bars 702 are vertically and evenly spaced. The correction vertical plate 7 is an inverted L-shaped structure as a whole. The upper end of the correction vertical plate 7 is buckled on the upper end of the safety pressure rod 5. A ranging transmitter 703 is provided on the bottom surface of the upper end of the correction vertical plate 7 corresponding to the ranging receiver 503. The ranging receiver 503 and the ranging transmitter 703 are used to measure the up and down position of the safety pressure rod 5. The microcontroller 8 determines the bearable pressure value of the decompression head 506 according to the measured value.

[0048] The working principle of this embodiment:

[0049] When the safety valve is installed on the main fluid pipeline, the connecting pipe 2 serves as the fluid inlet and is tightly connected to the main pipeline, enabling the circulating fluid to flow smoothly into the interior of the safety valve body 1. At the same time, on the other side of the safety valve body 1, the pressure relief pipe 3 acts as a safety outlet under high pressure. Once the pressure in the system exceeds the preset threshold, the excess fluid will be quickly discharged through this pipe to maintain the safety of the system.

[0050] At the upper middle part of the safety valve body 1, the protective cover 4 is firmly seated in a bolt-fixed manner. It not only provides necessary protection for the internal key components but also becomes an important part of the adjustment mechanism. In the center of the protective cover 4, the safety pressure rod 5 is inserted vertically and slidably. One end of it extends into the inner cavity of the safety valve body 1, and the other end extends to the outside for easy adjustment and monitoring. The up and down movement of the safety pressure rod 5 is directly related to the opening and closing state of the fluid passage and is the key to realizing pressure adjustment.

[0051] To achieve precise adjustment of the safety pressure rod 5, the adjustment motor 6 is ingeniously installed on one side of the top of the protective cover 4. When the motor is started, the driving gear 601 at the upper end of its rotating shaft is tightly engaged with the adjustment gear 401 on the protective cover 4 to drive it to rotate. Since a threaded section 501 is provided on the rod wall of the safety pressure rod 5 and is threadedly connected perpendicular to the adjustment gear 401 in a rotational manner, the rotation of the adjustment gear 401 will drive the safety pressure rod 5 to move up and down. At the same time, the pressure plate 602 above the driving gear 601 closely adheres to the upper end surface of the adjustment gear 401, effectively preventing it from moving upward during rotation and ensuring the stability of the adjustment process.

[0052] During the up and down movement of the safety pressure rod 5, the anti-rotation guide rod 502 at its upper end and the scale indicating block 5021 at its end play an important role. The anti-rotation guide rod 502 not only restricts the rotation of the safety pressure rod 5, but also cooperates with the movable strip hole 701 and the scale bar 702 on the correction vertical plate 7 through the scale indicating block 5021 thereon, providing an intuitive position indication for the operator. In addition, the ranging receiving end 503 at the upper end of the safety pressure rod 5 and the ranging transmitting end 703 on the correction vertical plate 7 together constitute a ranging system, which monitors and feeds back the accurate position information of the safety pressure rod 5 to the microcontroller 8 in real time.

[0053] In the inner cavity of the safety valve body 1, the safety pressure rod 5, together with components such as the connecting push plate 504, the spring 505, the pressure reducing head 506 and the plug 507, constitutes the core structure of pressure regulation. Under the elastic force of the spring 505, the pressure reducing head 506 and the plug 507 are closely matched to effectively block the cavity between the connecting pipe 2, the safety valve body 1 and the pressure relief pipe 3. When the safety pressure rod 5 moves downward, the spring 505 is compressed through the connecting push plate 504, causing the pressure reducing head 506 and the plug 507 to gradually separate, allowing the fluid to pass through and flow to the pressure relief pipe 3 for pressure release. Conversely, when the safety pressure rod 5 moves upward, the spring 505 restores its elastic force, pressing the pressure reducing head 506 and the plug 507 tightly again to close the channel.

[0054] Finally, as the intelligent center of the entire system, the microcontroller 8 calculates the pressure value that the current pressure reducing head 506 can withstand in real time according to the position information of the safety pressure rod 5 fed back by the ranging system and the preset algorithm logic, and displays it or performs further control operations. In this way, the pressure regulating stop safety valve can maintain an efficient and stable operating state in a complex and changeable fluid environment.

[0055] In this article, the following points need to be noted:

[0056] 1. The attached drawings of the embodiments of the present utility model only relate to the structures involved in the embodiments of the present utility model, and other structures can refer to the general design.

[0057] 2. Without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0058] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A pressure-regulating cut-off safety valve, comprising: Safety valve body (1), connecting pipe (2), pressure relief pipe (3), protective cover (4), safety pressure rod (5), adjustment motor (6), correction vertical plate (7) and microcontroller (8); characterized in that, one side of the safety valve body (1) is butted with a connecting pipe (2), and the connecting pipe (2) is used to communicate with the main pipeline to circulate fluid. The other side of the safety valve body (1) is butted with a pressure relief pipe (3), and the pressure relief pipe (3) is used to discharge excess fluid under high pressure; the upper end of the middle part of the safety valve body (1) is installed with a protective cover (4) through bolts; a safety pressure rod (5) is vertically slidably inserted into the upper end of the protective cover (4), and the lower end of the safety pressure rod (5) extends into the inner cavity of the safety valve body (1); on one side of the top of the protective cover (4), an adjustment motor (6) is vertically installed, and on the other side of the top of the protective cover (4), a correction vertical plate (7) is vertically and fixedly installed; the microcontroller (8) is fixedly installed at the uppermost end of the correction vertical plate (7).

2. The pressure-regulating type stop safety valve according to claim 1, characterized in that, The connecting pipe (2) and the pressure relief pipe (3) are symmetrically distributed left and right and staggered up and down, and the pressure relief pipe (3) is higher than the position of the connecting pipe (2) on the safety valve body (1).

3. A pressure-regulating type stop safety valve according to claim 1, characterized in that, An adjustment gear (401) is provided at the upper end of the protective cover (4), and the safety pressure rod (5) vertically passes through the adjustment gear (401).

4. A pressure-regulating stop safety valve according to claim 3, characterized in that, A threaded section (501) is provided downward on the upward rod wall of the safety pressure rod (5), and the threaded section (501) is vertically and rotationally screwed with the adjustment gear (401). On the upper end of the safety pressure rod (5), an anti-rotation guide rod (502) is vertically arranged on one side of the correction vertical plate (7), and a triangular scale indicating block (5021) is vertically arranged on the side wall of the end of the anti-rotation guide rod (502). A ranging receiving end (503) is provided in the middle of the upper end face of the safety pressure rod (5). At the position where the safety pressure rod (5) is located at the upper end of the inner cavity of the safety valve body (1), a connecting push plate (504) is fixedly provided. The lower end of the connecting push plate (504) is fixedly connected with a spring (505). The lower end of the spring (505) is fixedly connected with a pressure reducing head (506). The lower end of the pressure reducing head (506) is provided with a plug (507) with a reduced diameter. The pressure reducing head (506) and the plug (507) form a T-shaped columnar structure. Under the action of the spring (505), the pressure reducing head (506) and the plug (507) disconnect the cavity between the connecting pipe (2) and the safety valve body (1) and the pressure relief pipe (3).

5. The pressure-regulating type stop safety valve according to claim 3, characterized in that, The upper end of the rotating shaft of the adjustment motor (6) is fixedly connected with a driving gear (601). The upper end of the driving gear (601) is fixedly installed with a pressing plate (602) with an enlarged diameter. The driving gear (601) is meshed with the adjustment gear (401). One end of the bottom of the pressing plate (602) is tangent to the upper end face of the adjustment gear (401) to limit the upward movement of the adjustment gear (401).

6. The pressure regulating type stop safety valve according to claim 4, characterized in that, On the side plate of the correction vertical plate (7) opposite to the anti-rotation guide rod (502), a movable strip hole (701) is vertically and horizontally penetrated. The end of the anti-rotation guide rod (502) passes through the movable strip hole (701), and the scale indicating block (5021) is also outside the movable strip hole (701). On the side hole edge of the movable strip hole (701) corresponding to the scale indicating block (5021), scale bars (702) are vertically and evenly spaced. The correction vertical plate (7) is an inverted L-shaped structure as a whole. The upper end of the correction vertical plate (7) is buckled on the upper end of the safety pressure rod (5). A ranging transmitter (703) is provided on the bottom surface of the upper end of the correction vertical plate (7) corresponding to the ranging receiver (503). The ranging receiver (503) and the ranging transmitter (703) are used to measure the up and down position of the safety pressure rod (5). The microcontroller (8) determines the bearable pressure value of the pressure reducing head (506) according to the measured value.

Images