CN115325259A - Pressure detection equipment for gas-phase liquid nitrogen tank - Google Patents
Pressure detection equipment for gas-phase liquid nitrogen tank Download PDFInfo
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- CN115325259A CN115325259A CN202211264058.8A CN202211264058A CN115325259A CN 115325259 A CN115325259 A CN 115325259A CN 202211264058 A CN202211264058 A CN 202211264058A CN 115325259 A CN115325259 A CN 115325259A
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- gear
- fixedly mounted
- liquid nitrogen
- nitrogen tank
- phase liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/105—Three-way check or safety valves with two or more closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/014—Nitrogen
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to the technical field of pressure detection, and discloses a gas-phase liquid nitrogen tank pressure detection device which comprises a spring tube, wherein a triangular piece is fixedly installed on the right side of the spring tube, the bottom of the triangular piece is movably hinged with a hinged frame, the bottom of the hinged frame is movably hinged with a first gear, the middle of the first gear is movably hinged with a first fixed column, and the left side of the first gear is connected with a second gear in a meshed mode. The invention achieves the purpose of good visual prompting effect by arranging the electronic element, the resistance wire, the indicator board, the pointer and the sliding sheet, when the air pressure changes, the spring tube displaces to drive the second gear to rotate, the second gear drives the rack to slide left and right through the third gear, the position of the sliding sheet on the resistance wire is adjusted, so that the size of the resistor is controlled, the purpose of controlling the size of current is achieved, the current flows into a neon bulb of the electronic element to enable the neon bulb to shine, and the brightness of the neon bulb is controlled by controlling the size of the current.
Description
Technical Field
The invention belongs to the technical field of pressure detection, and particularly relates to a gas-phase liquid nitrogen tank pressure detection device.
Background
The gas-phase liquid nitrogen tank is also called a liquid nitrogen biological container and is used for storing active biological materials, liquid nitrogen in the gas-phase liquid nitrogen tank gradually volatilizes during storage, the temperature in the tank gradually rises, the pressure continuously increases along with the temperature rise, and the pressure value in the tank needs to be detected.
Among the prior art, place the valve of a detection at gaseous phase liquid nitrogen container's jar mouth usually, detect that the valve is linked together with gaseous phase liquid nitrogen container is inside, and temperature when jar internal rises, pressure increases gradually, and when pressure increased, the detection valve detected the change, and the pointer changes the position thereupon, but, the detection valve only rotates the change that the pointer indicates inside atmospheric pressure usually, and the suggestion effect is poor, and the inside atmospheric pressure of difficult real-time supervision gaseous phase liquid nitrogen container changes.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides the gas-phase liquid nitrogen tank pressure detection equipment which has the advantages of good visual prompt effect and convenience in automatically opening a valve to discharge pressure.
In order to achieve the purpose, the invention provides the following technical scheme: the pressure detection equipment for the gas-phase liquid nitrogen tank comprises a spring tube, wherein a triangular piece is fixedly mounted on the right side of the spring tube, an articulated frame is movably articulated with the bottom of the triangular piece, a first gear is movably articulated with the bottom of the articulated frame, a first fixed column is movably articulated with the middle of the first gear, a second gear is engaged and connected with the left side of the first gear, a second fixed column is fixedly mounted at the middle of the second gear, a third gear is fixedly mounted at the front end of the second fixed column, a rack is engaged and connected with the top of the third gear, a sliding rod is movably clamped and connected with the middle of the left side and the right side of the rack, fixed plates are fixedly mounted on the left side and the right side of the sliding rod, a cylinder is fixedly mounted at the top of the inner sides of the fixed plates at the two sides, a resistance wire is fixedly wound on the outer side of the cylinder, a connecting plate is fixedly mounted at the front end of the middle of the top of the rack, a sliding piece is fixedly mounted on the upper side and the lower side of the rear end of the connecting plate, a pointer is fixedly mounted at the rear end of the top of the sliding piece, a middle bearing of the second fixed plate is connected with a frame plate, and a shell is fixedly mounted on the periphery of the frame plate.
In the above technical scheme, preferably, an indicator plate is fixedly mounted at the top of the front end of the frame plate and at the top of the fixed plate, an electronic element is fixedly mounted at the bottom of the front end of the frame plate, a connecting pipe is fixedly communicated with the bottom of the spring pipe, an air inlet pipe is fixedly communicated with the front end of the connecting pipe, a valve handle is fixedly mounted at the front end of the top of the air inlet pipe, an exhaust pipe is fixedly communicated with the rear end of the connecting pipe, a rear baffle is fixedly mounted at the top of the exhaust pipe, a front cover is in threaded connection with the front end of the inner side of the housing, an observation plate is fixedly mounted at the middle of the front end of the front cover, a first helical gear is fixedly mounted at the rear end of the second fixed column, a second helical gear is in threaded connection with the bottom of the first helical gear, a screw is fixedly mounted at the middle of the bottom of the second helical gear, a movable block is in threaded connection with the bottom of the screw, guide rails are movably clamped at the left and right sides of the movable block, a sliding block, and a third fixed column is fixedly mounted at the top of the second helical gear.
In the above technical scheme, preferably, the spring tube is of a hollow structure, the bottom of the spring tube is fixedly mounted on the housing, the first fixing column is fixedly mounted on the frame plate, and the first gear is a half gear.
In the above technical scheme, preferably, the cylinder is made of an insulating material, the resistance wire is made of nichrome, the inner sides of the two sliding pieces are in contact with the surface of the resistance wire, and the number of the sliding rods is two.
Among the above-mentioned technical scheme, preferred, the surface of indicator board is provided with the scale value, the observation board is made for transparent glass, the inboard threaded connection of protecgulum is in the inner chamber of shell.
In the above technical scheme, preferably, the number of the guide rails is two, the upper end and the lower end of each of the two guide rails are fixedly mounted on the rear baffle and the exhaust pipe respectively, and the third fixed column bearing is connected to the top of the rear baffle.
Among the above-mentioned technical scheme, preferred, the blast pipe is the rectangle, the through-hole has been seted up at the middle part of blast pipe, sliding block and blast pipe adaptation joint.
Among the above-mentioned technical scheme, it is preferred that the frame plate is circular, the shell is circular, electronic component's inside fixed mounting has the neon bulb, electronic component's inside fixed mounting has the battery.
Compared with the prior art, the invention has the following beneficial effects:
1. the neon bulb comprises a spring tube, a rack, a spring tube, a indicating plate, a pointer and a sliding sheet, wherein the spring tube is arranged in the spring tube, when the air pressure changes, the spring tube displaces to drive a second gear to rotate, the second gear drives the rack to slide left and right through a third gear, and the position of the sliding sheet on the resistance wire is adjusted, so that the size of the resistor is controlled, the purpose of controlling the size of current is achieved, the current flows into a neon bulb of the electronic element to enable the neon bulb to shine, and the brightness of the neon bulb is controlled by controlling the size of the current.
2. The invention achieves the purpose of conveniently and automatically opening the valve to discharge pressure by arranging the second bevel gear, the screw rod, the sliding block and the third fixed column, the second bevel gear is driven by the first bevel gear to rotate, the screw rod is driven by the second bevel gear to rotate, the movable block is lifted or descended by the screw rod to move the sliding block in the through hole of the exhaust pipe, and the through hole is opened or closed, thereby achieving the effect of discharging pressure.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic external view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a schematic view of the inner chamber of the housing of the present invention;
fig. 5 is a rear view of the shelf plate of the present invention;
FIG. 6 is a schematic view of the interior cavity of the tailgate of the present invention;
FIG. 7 is a schematic cross-sectional view of an exhaust pipe according to the present invention.
In the figure: 1. a spring tube; 2. a triangular piece; 3. a hinged frame; 4. a first gear; 5. a first fixed column; 6. a second gear; 7. a second fixed column; 8. a third gear; 9. a rack; 10. a connecting plate; 11. sliding blades; 12. a pointer; 13. a slide bar; 14. a fixing plate; 15. a cylinder; 16. a resistance wire; 17. a frame plate; 18. an indicator panel; 19. an electronic component; 20. a housing; 21. a connecting pipe; 22. an air inlet pipe; 23. a valve handle; 24. an exhaust pipe; 25. a tailgate; 26. a front cover; 27. an observation plate; 28. a first helical gear; 29. a second helical gear; 30. a screw; 31. a movable block; 32. a guide rail; 33. a slider; 34. and a third fixing column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1 to 7, the invention provides a gas-phase liquid nitrogen tank pressure detection device, which comprises a spring tube 1, wherein a triangular piece 2 is fixedly installed on the right side of the spring tube 1, a hinged frame 3 is movably hinged to the bottom of the triangular piece 2, a first gear 4 is movably hinged to the bottom of the hinged frame 3, a first fixed column 5 is movably hinged to the middle of the first gear 4, a second gear 6 is meshed and connected to the left side of the first gear 4, a second fixed column 7 is fixedly installed in the middle of the second gear 6, a third gear 8 is fixedly installed at the front end of the second fixed column 7, a rack 9 is meshed and connected to the top of the third gear 8, a sliding stick 13 is movably clamped and connected to the middle of the left and right sides of the rack 9, fixed plates 14 are fixedly installed on the left and right sides of the sliding stick 13, a cylinder 15 is fixedly installed on the top of the inner sides of the fixed plates 14 on the two sides, a resistance wire 16 is fixedly wound on the outer side of the cylinder 15, a connecting plate 10 is fixedly installed at the front end of the middle of the top of the rack 9, sliding piece 11 is fixedly installed on the upper and lower sides of the rear end of the connecting plate 10, a pointer 12 is fixedly installed on the rear end of the top sliding piece, a pointer 12, a frame plate 17 is fixedly installed on the outer periphery of the outer shell is fixedly installed on the outer shell 20;
adopt above-mentioned scheme: through setting up spring tube 1, the gas in the jar flows in spring tube 1, when atmospheric pressure changes, spring tube 1 takes place the displacement, drive second gear 6 and rotate, second gear 6 drives rack 9 horizontal slip through third gear 8, adjust the position of gleitbretter 11 on resistance wire 16 to the size of control resistance has reached the purpose of control current size, the electric current flows in electronic component 19's neon bulb, make the neon bulb shine, and then the luminance of control neon bulb through the size of control current.
As shown in fig. 1 to 7, an indicator plate 18 is fixedly mounted on the top of the front end of a frame plate 17 and on the top of a fixed plate 14, an electronic component 19 is fixedly mounted on the bottom of the front end of the frame plate 17, a connecting pipe 21 is fixedly communicated with the bottom of a spring tube 1, an air inlet pipe 22 is fixedly communicated with the front end of the connecting pipe 21, a valve handle 23 is fixedly mounted on the front end of the top of the air inlet pipe 22, an air outlet pipe 24 is fixedly communicated with the rear end of the connecting pipe 21, a rear baffle 25 is fixedly mounted on the top of the air outlet pipe 24, a front cover 26 is in threaded connection with the front end of the inner side of a housing 20, an observation plate 27 is fixedly mounted in the middle of the front end of the front cover 26, a first helical gear 28 is fixedly mounted on the rear end of a second helical gear 28, a screw 30 is fixedly mounted in the middle of the bottom of the second helical gear 29, a movable block 31 is in threaded connection with the bottom of the screw 30, guide rails 32 are movably clamped on both the left and right sides of the movable block 31, a sliding block 33 is fixedly mounted on the bottom of the second helical gear 29, and a third fixed column 34 is fixedly mounted on the top of the second helical gear 29;
adopt above-mentioned scheme: the first bevel gear 28 drives the second bevel gear 29 to rotate, the second bevel gear 29 drives the screw 30 to rotate, the screw 30 enables the movable block 31 to ascend or descend, the sliding block 33 moves in the through hole of the exhaust pipe 24, the through hole is opened or closed, and the effect of discharging pressure is achieved.
As shown in fig. 1, the spring tube 1 is a hollow structure, the bottom of the spring tube 1 is fixedly installed on the housing 20, the first fixing column 5 is fixedly installed on the frame plate 17, and the first gear 4 is a half gear;
adopt above-mentioned scheme: through setting up spring tube 1, make spring tube 1 detach and be encapsulated situation outside the bottom opening, to the inside gas injection of spring tube 1, make the one end motion of spring tube 1, drive articulated frame 3 and remove, articulated frame 3 drives first gear 4 and rotates, enlarges wobbling value, makes pointer 12 instruct the scale on indicator board 18.
As shown in fig. 1, the cylinder 15 is made of an insulating material, the resistance wire 16 is made of nichrome, the inner sides of the two sliding sheets 11 are in contact with the surface of the resistance wire 16, and the number of the sliding rods 13 is two;
the scheme is adopted: through setting up resistance wire 16, third gear 8 rotates and drives rack 9 and slide on smooth rod 13, adjusts the position of connecting plate 10, and connecting plate 10 drives gleitbretter 11 and removes, adjusts the position of gleitbretter 11 on resistance wire 16, controls the length of resistance wire 16, has reached the purpose of adjusting the resistance size, and then the size of control current, and then the luminance of adjustment electronic component 19.
As shown in fig. 4, the surface of the indicator plate 18 is provided with scale values, the observation plate 27 is made of transparent glass, and the inner side of the front cover 26 is screwed into the inner cavity of the housing 20;
adopt above-mentioned scheme: through setting up indicator board 18, when the position of connecting plate 10 changed, drive the position change of pointer 12, pointer 12 instructs the scale interval on indicator board 18 surface, makes the people can accurately know the pressure value in the jar, and observation board 27 makes for transparent glass, can the person of facilitating the use observe, and the light that electronic component 19 sent can see through observation board 27, and the suggestion effect is good.
As shown in fig. 7, the number of the guide rails 32 is two, the upper and lower ends of the two guide rails 32 are respectively and fixedly mounted on the rear baffle 25 and the exhaust pipe 24, and the third fixing column 34 is connected to the top of the rear baffle 25 through a bearing;
adopt above-mentioned scheme: through setting up movable block 31, when screw rod 30 rotated, make movable block 31 upwards lifting, movable block 31 drives sliding block 33 upwards lifting, has reached the mesh of discharging jar internal pressure, and guide rail 32 can guide movable block 31 and slide from top to bottom.
As shown in fig. 6 and 7, the exhaust pipe 24 is rectangular, a through hole is formed in the middle of the exhaust pipe 24, and the sliding block 33 is in adaptive clamping connection with the exhaust pipe 24;
the scheme is adopted: the through hole of the exhaust pipe 24 is blocked through the up-and-down movement of the sliding block 33, the pressure in the tank can be prevented from leaking, and when the sliding block 33 moves upwards, the through hole of the exhaust pipe 24 is exposed, so that the pressure in the tank can leak, and the purpose of adjusting the pressure is achieved.
As shown in fig. 4, the frame plate 17 is circular, the housing 20 is circular, neon bulbs are fixedly installed inside the electronic element 19, and batteries are fixedly installed inside the electronic element 19;
adopt above-mentioned scheme: through the arrangement of the electronic element 19, along with the movement of the position of the slide sheet 11, the current entering the electronic element 19 is gradually strengthened, the brightness of the electronic element 19 is improved, and the brightness is convenient for a user to observe, and a battery arranged in the electronic element 19 supplies power to a neon bulb in the electronic element 19 through the resistance wire 16, the connecting plate 10 and the like.
The working principle and the using process of the invention are as follows:
the bottom of the connection pipe 21 is connected to the mouth of the gas-phase liquid nitrogen tank, and when the gas pressure increases due to the increase of the internal temperature of the gas-phase liquid nitrogen tank, gas flows in the spring tube 1 from the connecting tube 21, the air pressure in the spring tube 1 is gradually increased, the spring tube 1 is straightened, the tail end of the spring tube 1 is displaced to drive the triangular piece 2 to be displaced, the triangular piece 2 pulls the hinge frame 3, the hinge frame 3 drives the first gear 4 to move, the first gear 4 is movably hinged on the first fixing column 5, when the first gear 4 is pulled by the hinged frame 3, the first gear 4 rotates along the central axis of the first fixed column 5, the first gear 4 drives the second gear 6 to rotate, the second gear 6 drives the second fixed column 7 to rotate, the second fixed column 7 drives the third gear 8 to rotate, the third gear 8 drives the rack 9 to slide, the rack 9 drives the connecting plate 10 to move, the connecting plate 10 drives the sliding sheet 11 to move, the position of the sliding sheet 11 on the resistance wire 16 is adjusted, the battery of the electronic element 19 generates current which passes through the resistance wire 16 cut off by the sliding sheet 11, the length of the resistance wire 16 controls the size of the current, the current flows into the neon bulb of the electronic element 19, the neon bulb is lighted, and the brightness of the neon bulb is controlled by the size of the current, when the second fixed column 7 rotates, the first bevel gear 28 is driven to rotate, the first bevel gear 28 drives the second bevel gear 29 to rotate, the second bevel gear 29 drives the screw rod 30 to rotate, the screw rod 30 is meshed with the movable block 31, the movable block 31 moves upwards, the movable block 31 drives the sliding block 33 to move upwards, the sliding block 33 is separated from the exhaust pipe 24, the exhaust pipe 24 loses blockage, the exhaust pipe 24 is communicated with the connecting pipe 21, and the pressure in the gas-phase liquid nitrogen tank flows to the exhaust pipe 24 through the connecting pipe 21 and then is exhausted, so that the purpose of exhausting the pressure is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a gaseous phase liquid nitrogen container pressure measurement equipment, includes spring pipe (1), its characterized in that: a triangular piece (2) is fixedly mounted on the right side of the spring tube (1), a hinged frame (3) is movably hinged to the bottom of the triangular piece (2), a first gear (4) is movably hinged to the bottom of the hinged frame (3), a first fixed column (5) is movably hinged to the middle of the first gear (4), a second gear (6) is connected to the left side of the first gear (4) in a meshed manner, a second fixed column (7) is fixedly mounted in the middle of the second gear (6), a third gear (8) is fixedly mounted at the front end of the second fixed column (7), a rack (9) is connected to the top of the third gear (8) in a meshed manner, a sliding stick (13) is movably clamped in the middle of the left side and the right side of the rack (9), fixed plates (14) are fixedly mounted on the left side and the right side of the sliding stick (13), a cylinder (15) is fixedly mounted at the tops of the inner sides of the fixed plates (14), a frame plate (16) is fixedly wound on the outer side of the cylinder (15), a connecting plate (10) is fixedly mounted at the front end of the middle of the top of the rack (9), a connecting plate (10) is fixedly mounted on the upper side and a lower side of the rear end of the connecting plate (11), a pointer (17) is fixedly mounted on the middle of the pointer (11), a bearing (17) is fixedly mounted at the top of the second fixed column (7), and a shell (20) is fixedly arranged on the periphery of the frame plate (17).
2. The gas-phase liquid nitrogen tank pressure detection apparatus according to claim 1, characterized in that: an indicating plate (18) is fixedly arranged at the top of the front end of the frame plate (17) and the top of the fixing plate (14), an electronic element (19) is fixedly arranged at the bottom of the front end of the frame plate (17), the bottom of the spring tube (1) is fixedly communicated with a connecting tube (21), the front end of the connecting pipe (21) is fixedly communicated with an air inlet pipe (22), a valve handle (23) is fixedly arranged at the front end of the top of the air inlet pipe (22), an exhaust pipe (24) is fixedly communicated with the rear end of the connecting pipe (21), a rear baffle plate (25) is fixedly arranged at the top of the exhaust pipe (24), the front end of the inner side of the shell (20) is connected with a front cover (26) through screw threads, an observation plate (27) is fixedly arranged in the middle of the front end of the front cover (26), a first helical gear (28) is fixedly arranged at the rear end of the second fixing column (7), the bottom of the rear end of the first bevel gear (28) is in threaded connection with a second bevel gear (29), a screw rod (30) is fixedly arranged in the middle of the bottom of the second bevel gear (29), the bottom of the screw rod (30) is connected with a movable block (31) through threads, the left side and the right side of the movable block (31) are movably clamped with guide rails (32), the bottom of the movable block (31) is fixedly provided with a sliding block (33), and a third fixing column (34) is fixedly mounted at the top of the second bevel gear (29).
3. The gas-phase liquid nitrogen tank pressure detection apparatus according to claim 1, characterized in that: the spring tube (1) is of a hollow structure, the bottom of the spring tube (1) is fixedly mounted on the shell (20), the first fixing column (5) is fixedly mounted on the frame plate (17), and the first gear (4) is a half gear.
4. The gas-phase liquid nitrogen tank pressure detection apparatus according to claim 1, characterized in that: the cylinder (15) is made of insulating materials, the resistance wires (16) are made of nichrome, the inner sides of the two sliding sheets (11) are in contact with the surfaces of the resistance wires (16), and the number of the sliding rods (13) is two.
5. The apparatus for detecting the pressure of a liquid nitrogen tank in a gaseous phase according to claim 2, wherein: the surface of indicator board (18) is provided with the scale value, observation board (27) are made for transparent glass, the inboard threaded connection of protecgulum (26) is in the inner chamber of shell (20).
6. The apparatus for detecting the pressure of a liquid nitrogen tank in a gaseous phase according to claim 2, wherein: the number of the guide rails (32) is two, the upper end and the lower end of each of the two guide rails (32) are fixedly mounted on the rear baffle (25) and the exhaust pipe (24) respectively, and the third fixing column (34) is connected to the top of the rear baffle (25) in a bearing mode.
7. The apparatus for detecting pressure of a gas-phase liquid nitrogen tank according to claim 2, characterized in that: blast pipe (24) are the rectangle, the through-hole has been seted up at the middle part of blast pipe (24), sliding block (33) and blast pipe (24) adaptation joint.
8. The apparatus for detecting pressure of a gas-phase liquid nitrogen tank according to claim 2, characterized in that: frame plate (17) are circular, shell (20) are circular, the inside fixed mounting of electronic component (19) has the neon bulb, the inside fixed mounting of electronic component (19) has the battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211264058.8A CN115325259B (en) | 2022-10-17 | 2022-10-17 | Pressure detection equipment for gas-phase liquid nitrogen tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211264058.8A CN115325259B (en) | 2022-10-17 | 2022-10-17 | Pressure detection equipment for gas-phase liquid nitrogen tank |
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| CN115325259B CN115325259B (en) | 2023-03-24 |
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| CN202211264058.8A Active CN115325259B (en) | 2022-10-17 | 2022-10-17 | Pressure detection equipment for gas-phase liquid nitrogen tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220228674A1 (en) * | 2021-01-20 | 2022-07-21 | Saudi Arabian Oil Company | Gate valve indicator devices for oil and gas applications |
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| CN217084054U (en) * | 2022-04-07 | 2022-07-29 | 杭州华科仪表有限公司 | Pressure gauge capable of protecting against overvoltage |
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| WO2006046798A1 (en) * | 2004-10-27 | 2006-05-04 | Metachem Inc. | Electronic bourdon tube pressure gauge |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115325259B (en) | 2023-03-24 |
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