Spring type safety valve capable of recycling medium

Abstract

The utility model relates to the technical field of spring type safety valves, and discloses a spring type safety valve capable of recovering media, which comprises a base flange plate, the top of the base flange plate is communicated and connected with a valve seat, the top of the valve seat is slidably connected with a recoil disc, the inside of the recoil disc is fixedly connected with a valve rod, and the valve rod is fixedly connected with a valve rod. The top face of the base flange plate is connected with a valve body in a screwed mode through bolts and nuts, and the top of the valve body is fixedly connected with a guide pipe. According to the spring type safety valve capable of recycling the medium, through the arrangement of the medium recycling and metering assembly, when the medium is subjected to pressure relief and export through the spring type safety valve, the medium flows out through the flow metering pipe, and a gas flow sensor arranged in the flow metering pipe monitors the flow of the medium; and the conversion controller converts the medium flow into a numerical value to be displayed on the flow display screen, so that the amount of the recycled medium can be accurately monitored, the production process is controlled and optimized, the cost control is improved, and the sustainability of the recycled medium is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of spring type safety valves, in particular to a spring type safety valve capable of recovering a medium. Background Art

[0002] The spring safety valve is a special valve whose opening and closing parts are in a normally closed state under the action of external forces. When the medium pressure in the equipment or pipeline rises to more than the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the equipment or pipeline. The safety valve belongs to the automatic valve category and is mainly used in boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value, which plays an important protective role in personal safety and equipment operation. The spring safety valve plays a safety protection role in the equipment or pipeline. When the pressure of the equipment or pipeline exceeds the specified value, the safety valve opens and discharges part of the gas / fluid in the equipment or pipeline into the atmosphere / outside the pipeline, so that the pressure of the equipment or pipeline does not exceed the allowable value, thereby ensuring that the equipment or pipeline does not cause accidents due to excessive pressure. The spring safety valve with recyclable medium recycles the steam again.

[0003] The existing spring-loaded safety valve only discharges steam with excessive pressure for recycling purposes, but it is not convenient to detect the flow rate of the discharged steam, so that the staff can obtain the accurate value of the recovered medium, thereby facilitating the optimization and control of the production process, improving cost control and ensuring the sustainability of the recovered medium.

[0004] A spring-type safety valve disclosed in publication number CN216200900U, although the utility model is provided with an adjusting device and a pressure relief mechanism, so that the pressure can be adjusted at any time, is also provided with a manual pressure relief device at the upper end of the safety valve, so that the safety valve can be manually relieved of pressure, the light and compact structure makes the installation position not restricted, can adapt to mobile pressure vessels, has a wide range of use, and has strong applicability.

[0005] However, the spring-loaded safety valve with recoverable medium has the following disadvantages: it is not convenient to precisely control the depth of the spring-loaded safety valve stem downward pressure, so that the spring-loaded safety valve can be controlled by the pressure of the spring downward pressure, thereby improving the regulation effect. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The technical problem solved by the utility model is to provide a spring-type safety valve that can recover the medium and has a relatively simple structure and is highly practical and can be operated simply, thereby solving the problems of accurately monitoring the amount of recovered medium and accurately controlling the depth of depression of the valve stem of the spring safety valve proposed in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented by the following technical solutions: a spring-type safety valve with recoverable medium, comprising a base flange, a valve seat is connected through the top of the base flange, a recoil disc is slidably connected to the top of the valve seat, a spring lap cap is clamped on the top of the recoil disc, a valve stem is fixedly connected to the top of the spring lap cap, a valve body is connected to the top of the base flange by bolts and nuts, a guide tube is fixedly connected to the top of the valve body, a spring lap cap is slidably connected to the inside of the guide tube, an adjusting spring is fixedly installed on the top of the spring lap cap, a pressing sheet is fixedly installed on the top of the adjusting spring, a valve cover is connected to the top of the valve cover by bolts and nuts, a pressure marking adjustment assembly is fixedly installed on the top of the valve cover, a marking ring is engraved on the surface of the valve stem, a threaded adjustment outer tooth is arranged on the top of the marking ring, an output flange is connected through the side of the valve body, one end of the output flange is connected to a flow metering tube by bolts and nuts, and a medium recovery metering assembly is arranged inside the flow metering tube.

[0010] As a further solution of the utility model, an air intake pipe is connected through the bottom of the base flange, one end of which is connected to an external steam medium. The function of the air intake pipe is to connect to the external steam medium and introduce a spring-loaded safety valve for pressure relief.

[0011] As a further solution of the utility model, the valve seat is arranged inside the valve body, and the surface of the recoil disk is adapted to be fitted on the inner top wall of the spring lap cap, the top end of the outer surface of the spring lap cap is slidably connected to the inside of the guide tube, and the bottom of the spring lap cap is overlapped on the bottom surface of the guide tube, and the recoil disk drives the spring lap cap to move upward, which helps to stably release the steam pressure.

[0012] As a further solution of the utility model, the inner part of the pressing plate is rotatably connected to the surface of the valve stem, and the pressing plate is arranged on the inner part of the valve cover. The function of the pressing plate is to fix the valve stem to the surface of the adjusting spring.

[0013] As a further solution of the utility model, the pressure marking adjustment assembly includes a fixed cylinder fixedly installed on the top of the valve cover, and a marking frame is fixedly installed on the top of the fixed cylinder. The function of the marking frame is to limit the sliding of the valve stem.

[0014] As a further solution of the utility model, an adjusting thread inner tooth is opened through the middle of the top surface of the fixed cylinder, the surface of the marking frame is engraved with millimeter scale values, and the surface of the adjusting thread inner tooth is threadedly connected to the surface of the adjusting thread outer tooth. Adjusting the internal pressure facilitates the rotation of the valve stem thread, so that the valve stem moves upward or downward.

[0015] As a further solution of the utility model, an observation hole is opened on the surface of the valve cover, and the surface of the regulating spring is arranged on the inside of the valve cover. The observation hole can be used to observe the deformation degree of the regulating spring.

[0016] As a further solution of the utility model, the medium recovery metering component includes a gas flow sensor arranged inside the flow metering tube, the interior of the gas flow sensor is electrically connected to a conversion controller via a power cord, and the surface of the conversion controller is electrically connected to a flow display screen via a power cord. The function of the conversion controller is to display the electrical signal of the gas flow sensor on the flow display screen.

[0017] (III) Beneficial effects

[0018] The utility model provides a spring-type safety valve with recyclable medium, which has the following beneficial effects:

[0019] 1. The spring-loaded safety valve with recyclable medium can adjust the pressure by setting the pressure mark adjustment component. When adjusting the pressure, the valve stem is rotated. According to the descending depth of the mark ring of the valve stem on the pressure mark adjustment component, the magnitude of the force applied to the object or surface can be accurately controlled, thereby realizing accurate adjustment of the pressure, making the pressure of the spring-loaded safety valve controlled by the spring pressure, and improving the pressure adjustment effect of the spring-loaded safety valve.

[0020] 2. The spring-loaded safety valve for recoverable media is provided with a medium recovery metering component. When the medium is discharged through the spring-loaded safety valve for pressure relief, the medium flows out through the flow metering tube. The gas flow sensor arranged inside the flow metering tube monitors the medium flow. The conversion controller converts the medium flow into a numerical value and displays it on the flow display screen, thereby accurately monitoring the amount of recovered medium, thereby controlling and optimizing the production process, improving cost control and ensuring the sustainability of recovered medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the valve stem split structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the split structure of the pressure marking adjustment component of the utility model;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the medium recovery and metering component of the utility model.

[0026] In the figure: 1. base flange; 2. valve seat; 3. recoil disk; 4. valve stem; 5. valve body; 6. guide tube; 7. spring lap cap; 8. adjustment spring; 9. pressing piece; 10. valve cover; 11. pressure mark adjustment assembly; 1101. fixing cylinder; 1102. marking frame; 12. marking ring; 13. thread adjustment outer thread; 14. output flange; 15. flow metering tube; 16. medium recovery metering assembly; 1601. gas flow sensor; 1602. conversion controller; 1603. flow display screen; 17. intake pipe. DETAILED DESCRIPTION

[0027] 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. 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.

[0028] See also Figures 1 to 5 The utility model provides a technical solution: a spring-type safety valve with recyclable medium, comprising a base flange 1, a valve seat 2 is connected through the top of the base flange 1, a recoil disc 3 is slidably connected to the top of the valve seat 2, a spring lap cap 7 is clamped on the top of the recoil disc 3, a valve stem 4 is fixedly connected to the top of the spring lap cap 7, a valve body 5 is fixedly connected to the top of the base flange 1 by bolts and nuts, a guide tube 6 is fixedly connected to the top of the valve body 5, a spring lap cap 7 is slidably connected to the inside of the guide tube 6, an adjusting spring 8 is fixedly installed on the top of the spring lap cap 7, a pressing sheet 9 is fixedly installed on the top of the adjusting spring 8, and the top surface of the valve body 5 is tightened by bolts and nuts A valve cover 10 is provided, and a pressure marking adjustment component 11 is fixedly installed on the top of the valve cover 10. Through the setting of the pressure marking adjustment component 11, accurate adjustment of the pressure can be achieved. A marking circle 12 is engraved on the surface of the valve stem 4, and a threaded adjustment outer thread 13 is provided on the top of the marking circle 12. An output flange 14 is connected to the side of the valve body 5. One end of the output flange 14 is tightened with a flow metering tube 15 by bolts and nuts. A medium recovery metering component 16 is provided inside the flow metering tube 15. Through the setting of the medium recovery metering component 16, the amount of recovered medium can be accurately monitored, so as to control and optimize the production process, improve cost control and ensure the sustainability of recovered medium.

[0029] An air inlet pipe 17 is connected through the bottom of the base flange 1, and one end of the air inlet pipe 17 is connected to the external steam medium. The arrangement of the base flange 1 plays a role in fixing the safety valve.

[0030] The valve seat 2 is arranged inside the valve body 5, and the surface of the recoil disk 3 is adapted to be fitted on the inner top wall of the spring lap cap 7, the top end of the outer surface of the spring lap cap 7 is slidably connected to the inside of the guide tube 6, and the bottom of the spring lap cap 7 is overlapped on the bottom surface of the guide tube 6. The valve seat 2 is arranged inside the valve body 5 to facilitate the derivation of the steam medium inside the valve body 5.

[0031] The pressing plate 9 is internally connected to the surface of the valve stem 4 and is arranged inside the valve cover 10. The pressing plate 9 rotates inside the valve stem 4 to prevent the regulating spring 8 from generating torque when the valve stem 4 rotates.

[0032] The pressure marking adjustment assembly 11 includes a fixed cylinder 1101 fixedly mounted on the top of the valve cover 10 , and a marking frame 1102 is fixedly mounted on the top of the fixed cylinder 1101 . The setting of the fixed cylinder 1101 facilitates the valve stem 4 to move up and down stably.

[0033] An adjusting thread inner tooth is provided through the middle of the top surface of the fixed cylinder 1101, and the surface of the marking frame 1102 is engraved with millimeter scale values. The surface of the adjusting thread inner tooth is threadedly connected to the surface of the thread adjusting outer tooth 13. The setting of the adjusting thread inner tooth facilitates the threaded connection of the thread adjusting outer tooth 13.

[0034] An observation hole is provided on the surface of the valve cover 10 , and the surface of the regulating spring 8 is arranged on the inside of the valve cover 10 . The arrangement of the observation hole allows the compressed state of the regulating spring 8 to be observed at any time.

[0035] The medium recovery metering component 16 includes a gas flow sensor 1601 arranged inside the flow metering tube 15. The interior of the gas flow sensor 1601 is electrically connected to a conversion controller 1602 via a power cord. The surface of the conversion controller 1602 is electrically connected to a flow display screen 1603 via a power cord. The setting of the flow display screen 1603 facilitates clear sensing of the depressurized steam medium, which is convenient for recycling and reuse.

[0036] The model of the gas flow sensor 1601 is HFM200, the model of the conversion controller 1602 is SierraInstruments SmartTrak 100, and the model of the flow display screen 1603 is Siemens SITRANS FC MASS 6000. The above parameters and models can be selected according to actual conditions.

[0037] In the utility model, the working steps of the device are as follows:

[0038] The first step: when pressure relief is required, the medium flows in from the air inlet pipe 17 and pushes up the recoil disc 3 through the valve seat 2 inside the valve body 5. The recoil disc 3 drives the spring lap cap 7 to slide synchronously inside the guide tube 6 to the bottom end of the guide tube 6, so that the bottom end of the spring lap cap 7 is limited and fits the bottom end of the guide tube 6. At this time, the bottom of the adjusting spring 8 is subjected to the pressure of the top of the spring lap cap 7. The adjusting spring 8 gives a reverse force downward to provide downward pressure to the spring lap cap 7 and the recoil disc 3. When the pressure needs to be adjusted, the valve stem 4 is rotated, and its descending depth is accurately adjusted according to the mark of the marking circle 12 of the valve stem 4 on the pressure marking adjustment component 11, so that the pressing piece 9 fixed on the valve stem 4 compresses the spring lap cap 7 and the adjusting spring 8 to the specified position. Under the force of the bottom surface of the guide tube 6, the adjusting spring 8 contracts and presses down the spring lap cap 7 and the recoil disc 3, thereby increasing the pressure of the recoil disc 3 on the valve seat 2;

[0039] The second step: when the medium is depressurized and discharged through the spring-loaded safety valve, the medium flows out through the flow metering tube 15, and the gas flow sensor 1601 arranged inside the flow metering tube 15 monitors the medium flow, and the conversion controller 1602 converts the medium flow into a numerical value and displays it on the flow display screen 1603.

[0040] It should be noted that the equipment structure and drawings of the present utility model mainly describe the principle of the present utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field; although the embodiments of the present utility model have been shown and described, for ordinary technical personnel in this field, it can be understood that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A spring-loaded safety valve capable of recovering a medium, comprising a base flange (1), characterized in that: The top of the base flange (1) is connected to a valve seat (2), the top of the valve seat (2) is slidably connected to a recoil disc (3), the top of the recoil disc (3) is clamped with a spring lap cap (7), the top of the spring lap cap (7) is fixedly connected to a valve stem (4), the top surface of the base flange (1) is connected to a valve body (5) by tightening bolts and nuts, the top of the valve body (5) is fixedly connected to a guide tube (6), the inside of the guide tube (6) is slidably connected to a spring lap cap (7), the top of the spring lap cap (7) is fixedly mounted with an adjusting spring (8), the top of the adjusting spring (8) is fixedly connected to the valve body (5), and the top of the adjusting spring (8) is fixedly connected to the valve seat (2), the top of the valve seat (2) is slidably connected to a recoil disc (3), the top of the recoil disc (3) is clamped with a spring lap cap (7), the top of the spring lap cap (7) is fixedly mounted with a valve stem (4), and the top of the spring lap cap (7) is fixedly connected to the valve body (5) by tightening bolts and nuts. A pressing piece (9) is fixedly installed on the top of the valve body (5), a valve cover (10) is tightened by bolts and nuts on the top surface of the valve body (5), a pressure marking adjustment component (11) is fixedly installed on the top of the valve cover (10), a marking circle (12) is engraved on the surface of the valve stem (4), and a threaded adjustment outer thread (13) is arranged at the top of the marking circle (12), an output flange (14) is connected through the side of the valve body (5), one end of the output flange (14) is tightened by bolts and nuts to be connected to a flow metering tube (15), and a medium recovery metering component (16) is arranged inside the flow metering tube (15).

2. A spring-loaded safety valve with recoverable medium according to claim 1, characterized in that: An air inlet pipe (17) is connected through the bottom of the base flange (1), and one end of the air inlet pipe (17) is connected to an external steam medium.

3. A spring-loaded safety valve capable of recovering medium according to claim 1, characterized in that: The valve seat (2) is arranged inside the valve body (5), and the surface of the recoil disk (3) is adapted to be fitted on the inner top wall of the spring lap cap (7), the top end of the outer surface of the spring lap cap (7) is slidably connected to the inside of the guide tube (6), and the bottom of the spring lap cap (7) is overlapped on the bottom surface of the guide tube (6).

4. A spring-loaded safety valve with recoverable medium according to claim 1, characterized in that: The inside of the pressing plate (9) is rotationally connected to the surface of the valve stem (4), and the pressing plate (9) is slidingly connected to the inside of the valve cover (10).

5. A spring-loaded safety valve with recoverable medium according to claim 1, characterized in that: The pressure marking adjustment assembly (11) comprises a fixed cylinder (1101) fixedly mounted on the top of the valve cover (10), and a marking frame (1102) is fixedly mounted on the top of the fixed cylinder (1101).

6. A spring-loaded safety valve capable of recovering medium according to claim 5, characterized in that: An adjusting thread inner tooth is provided through the middle of the top surface of the fixing tube (1101), a millimeter scale value is engraved on the surface of the marking frame (1102), and the surface of the adjusting thread inner tooth is threadedly connected to the surface of the adjusting thread outer tooth (13).

7. A spring-loaded safety valve with recoverable medium according to claim 1, characterized in that: An observation hole is provided on the surface of the valve cover (10), and the surface of the regulating spring (8) is arranged on the inside of the valve cover (10).

8. The spring-loaded safety valve with recoverable medium according to claim 1, characterized in that: The medium recovery metering component (16) includes a gas flow sensor (1601) arranged inside the flow metering tube (15), the interior of the gas flow sensor (1601) is electrically connected to a conversion controller (1602) via a power line, and the surface of the conversion controller (1602) is electrically connected to a flow display screen (1603) via a power line.

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