Intelligent control device for liquid nitrogen filling
Through intelligent control devices that dynamically control the output speed and input speed of liquid nitrogen, the problem of large pressure fluctuations in the traditional liquid nitrogen storage box is solved, and the pressure stability in the liquid nitrogen storage box is achieved, ensuring the normal operation of the equipment and experiments.
Patent Information
- Application Number
- CN202421680357.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The filling system of traditional liquid nitrogen storage boxes relies on manual operation or simple pressure control, making it difficult to achieve a stable real-time response to pressure, resulting in large fluctuations in the pressure in the liquid nitrogen storage box, affecting the normal operation of equipment and experiments.
By dynamically controlling the output speed of liquid nitrogen and adjusting the input speed, an intelligent liquid nitrogen filling control device is adopted. The device includes a adjustment ring, an injection tube and a baffle. The vacuum tube is controlled through the adjustment ring, and intelligent control of liquid nitrogen filling is achieved through the coordination of the injection tube and the baffle.
Effectively maintain the pressure in the liquid nitrogen storage box to prevent rapid pressure changes and ensure the normal operation of the equipment and experiments.
Smart Images
Figure CN222798677U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid nitrogen filling control, in particular to a liquid nitrogen filling intelligent control device. Background Art
[0002] As a cryogenic medium widely used in various industrial and scientific applications, the safe, stable and efficient delivery and storage of liquid nitrogen is an important part of the development of modern technology. In many applications, liquid nitrogen storage tanks must maintain stable pressure and proper liquid level to ensure the normal operation of equipment and experiments.
[0003] At present, the common filling system of liquid nitrogen storage tanks mainly relies on manual operation or simple pressure control methods, which have certain limitations in efficiency and accuracy. Traditional pressure control systems often have difficulty responding to pressure changes in real time, resulting in large pressure fluctuations in liquid nitrogen storage tanks, which may even affect the normal operation of the equipment or the stability of the experiment. Utility Model Content
[0004] In view of the above technical problems, the present application adjusts the input speed by dynamically controlling the output speed of liquid nitrogen, thereby effectively maintaining the pressure in the liquid nitrogen storage tank stable.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a liquid nitrogen filling intelligent control device, including a base, a storage box is fixedly installed on the base, a vacuum tube is fixedly installed on the storage box, an adjustment shell is fixedly installed on the vacuum tube, an adjustment ring is rotatably connected to the adjustment shell, a notch is provided on the adjustment ring, an injection pipe is fixedly installed on the storage box, a limit shell is fixedly installed on the injection pipe, a baffle is slidably connected to the limit shell, and an inclined surface is provided on the baffle.
[0006] Preferably, an insulation box is fixedly mounted on the base, a filling pipe is fixedly mounted on the insulation box, and a control box is fixedly mounted on the storage box.
[0007] Preferably, the baffle is fixedly connected with an upper sliding rod, the upper sliding rod is slidably connected to the base, the upper sliding rod is fixedly connected with an intermediate push plate, the intermediate push plate is fixedly connected with the first end of the upper spring, the second end of the upper spring is fixedly connected to the base, the upper sliding rod is rotatably connected with the first end of the upper connecting rod, and the second end of the upper connecting rod is rotatably connected with a large turntable.
[0008] Preferably, an upper shaft is rotatably connected to the base, a ratchet is fixedly mounted on the upper shaft, a mounting ring is rotatably connected to the upper shaft, the mounting ring is fixedly connected to the large turntable, a plurality of ratchets are rotatably connected to the large turntable, and a torsion spring is arranged on the ratchets.
[0009] Preferably, a small swivel is fixedly mounted on the upper shaft, a plurality of protruding rods are provided on the small swivel, a lower sliding rod is slidably connected to the base, the first end of the lower sliding rod is rotatably connected to the first end of the lower connecting rod, a torsion spring is provided on the first end of the lower connecting rod, the second end of the lower connecting rod is in contact with the small swivel, the second end of the lower sliding rod is fixedly connected to the first end of the lower spring, and the second end of the lower spring is fixedly connected to the base.
[0010] Preferably, a transmission shaft is rotatably connected to the base, the upper shaft is frictionally connected to the transmission shaft via a belt, and the transmission shaft is frictionally connected to the adjustment ring via a belt.
[0011] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0012] 1. The utility model limits the liquid nitrogen in the vacuum tube by setting an adjustment ring, controls the filling speed of the liquid nitrogen, and avoids causing rapid changes in the pressure in the storage box.
[0013] 2. The utility model arranges a baffle on the injection pipe, and drives the baffle to move through the impact when outputting liquid nitrogen, thereby controlling the restriction of the regulating ring on the vacuum tube, thereby realizing intelligent control of liquid nitrogen filling.
[0014] 3. The utility model controls the rotation speed of the adjustment ring by adjusting the rotation radius of the large turntable and the mounting ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a structural schematic diagram of the transmission shaft of the utility model;
[0018] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the structure of the baffle of the utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the mounting ring of the utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the adjustment ring of the utility model;
[0022] In the figure: 101, base; 102, insulation box; 103, filling pipe; 104, vacuum tube; 105, storage box; 106, control box; 107, injection pipe; 108, limit shell; 109, baffle; 110, upper slide bar; 111, middle push plate; 112, upper spring; 113, upper connecting rod; 114, large turntable; 115, pawl; 116, ratchet; 117, upper shaft; 118, mounting ring; 119, lower slide bar; 120, lower spring; 121, lower connecting rod; 122, small swivel; 123, transmission shaft; 124, adjustment ring; 125, adjustment shell. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0026] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0027] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0029] Embodiment 1:
[0030] like Figures 1 to 6 As shown, a liquid nitrogen filling intelligent control device includes a base 101, a storage box 105 is fixedly installed on the base 101, a vacuum tube 104 is fixedly installed on the storage box 105, an adjusting shell 125 is fixedly installed on the vacuum tube 104, an adjusting ring 124 is rotatably connected to the adjusting shell 125, a notch is provided on the adjusting ring 124, an injection pipe 107 is fixedly installed on the storage box 105, a limiting shell 108 is fixedly installed on the injection pipe 107, a baffle 109 is slidably connected to the limiting shell 108, and a slope is provided on the baffle 109.
[0031] When adding liquid nitrogen, the circulation speed of the liquid nitrogen in the vacuum tube 104 is controlled by the regulating ring 124 on the vacuum tube 104, so as to avoid the pressure in the storage box 105 changing too much due to the influx of a large amount of liquid nitrogen, thereby causing danger. And the input speed of the liquid nitrogen at the vacuum tube 104 is adjusted according to the spraying speed of the liquid nitrogen from the spray pipe 107, so as to keep the amount of liquid nitrogen in the storage box 105 stable, thereby stabilizing the pressure in the storage box 105 and avoiding unnecessary danger.
[0032] like Figure 1 As shown, a heat preservation box 102 is fixedly installed on the base 101 , a filling pipe 103 is fixedly installed on the heat preservation box 102 , and a control box 106 is fixedly installed on the storage box 105 .
[0033] When in use, liquid nitrogen is added through the filling pipe 103, and the liquid nitrogen enters the storage box 105 through the vacuum tube 104. When liquid nitrogen needs to be sprayed, the control box 106 controls the liquid nitrogen in the storage box 105 to spray out from the spray pipe 107 and adjusts the speed.
[0034] like Figure 4 As shown, the baffle 109 is fixedly connected with an upper slide bar 110, the upper slide bar 110 is slidably connected to the base 101, the upper slide bar 110 is fixedly connected with an intermediate push plate 111, the intermediate push plate 111 is fixedly connected with a first end of an upper spring 112, the second end of the upper spring 112 is fixedly connected to the base 101, the upper slide bar 110 is rotatably connected with a first end of an upper connecting rod 113, and the second end of the upper connecting rod 113 is rotatably connected with a large turntable 114.
[0035] During use, when the control box 106 controls the liquid nitrogen in the storage box 105 to be sprayed out from the injection pipe 107, the liquid nitrogen impacts the baffle 109 through the limiting shell 108, and uses the inclined surface on the baffle 109 to push the baffle 109 to slide on the limiting shell 108 toward the direction close to the upper shaft 117, so that the baffle 109 no longer blocks the liquid nitrogen from flowing in the injection pipe 107, and the speed of liquid nitrogen injection will also affect the sliding distance of the baffle 109 on the limiting shell 108, that is, when the flow speed of liquid nitrogen on the injection pipe 107 is slow, the liquid nitrogen can only push the baffle 109 to slide a certain distance on the limiting shell 108, and the baffle 109 will not completely leave the pipe diameter range of the injection pipe 107, that is, the baffle 109 will still block a part of the flow space inside the injection pipe 107.
[0036] The base 101 is rotatably connected to an upper shaft 117, a ratchet 116 is fixedly mounted on the upper shaft 117, a mounting ring 118 is rotatably connected to the upper shaft 117, the mounting ring 118 is fixedly connected to the large turntable 114, a plurality of ratchets 115 are rotatably connected to the large turntable 114, and a torsion spring is disposed on the ratchets 115.
[0037] When the upper slide bar 110 slides, the upper slide bar 110 pushes the first end of the upper connecting rod 113, and the second end of the upper connecting rod 113 pushes the large turntable 114, so that the large turntable 114 drives the mounting rings 118 on both sides to rotate on the upper shaft 117, and then the ratchet 115 on the large turntable 114 pushes the ratchet 116 on the upper shaft 117 to rotate. Figure 5 As shown, when the upper connecting rod 113 pushes the large rotating disk 114, the large rotating disk 114, the pawl 115, the ratchet 116 and the upper shaft 117 rotate clockwise on the base 101, thereby driving the transmission shaft 123 to rotate clockwise through the belt, and the transmission shaft 123 drives the adjusting ring 124 to rotate clockwise through the belt, and finally the adjusting ring 124 rotates an angle on the adjusting housing 125, so that the liquid nitrogen in the vacuum tube 104 can circulate, and the flow rate of the circulating liquid nitrogen is adjusted according to the rotation angle of the adjusting ring 124, so as to realize the control of the input speed of the liquid nitrogen in the storage box 105. In this process, when the adjusting ring 124 rotates within a range of ninety degrees, the groove on the adjusting ring 124 is triangular.
[0038] like Figure 4 and Figure 5 As shown, a small swivel ring 122 is fixedly mounted on the upper shaft 117, and a plurality of protruding rods are arranged on the small swivel ring 122. A lower sliding rod 119 is slidably connected to the base 101. The first end of the lower sliding rod 119 is rotatably connected to the first end of a lower connecting rod 121. A torsion spring is arranged on the first end of the lower connecting rod 121. The second end of the lower connecting rod 121 contacts the small swivel ring 122. The second end of the lower sliding rod 119 is fixedly connected to the first end of a lower spring 120, and the second end of the lower spring 120 is fixedly connected to the base 101.
[0039] The liquid nitrogen on the injection tube 107 pushes the baffle 109 to move, and the upper slide bar 110 moves and drives the middle push plate 111 to move. When the large turntable 114 rotates 90 degrees, the middle push plate 111 contacts the end of the lower slide bar 119 close to the baffle 109. At this time, only part of the baffle 109 remains within the diameter of the injection tube 107. Therefore, when the liquid nitrogen continues to push the baffle 109, the upper slide bar 110 continues to move, and pushes the lower slide bar 119 on the base 101 through the middle push plate 111. Slide up, and then the lower slide bar 119 compresses the lower spring 120 and pushes the lower connecting rod 121, and the lower connecting rod 121 pushes the convex rod of the small rotating ring 122 on the upper shaft 117, so that the small rotating ring 122 and the upper shaft 117 rotate clockwise on the base 101, and because the diameter of the small rotating ring 122 is smaller than the diameter of the large rotating disk 114, the rotation speed of the upper shaft 117 is much greater than the rotation speed when the large rotating disk 114 drives the ratchet 116 and the upper shaft 117 through the pawl 115. Then the adjusting ring 124 is driven by the belt and the transmission shaft 123 to continue to rotate 90 degrees, so that the adjusting ring 124 no longer blocks the circulation of liquid nitrogen in the vacuum tube 104. In this process, when the adjusting ring 124 rotates from 90 degrees to 180 degrees, the groove on the adjusting ring 124 is rectangular, and the space that the groove can accommodate the circulation of liquid nitrogen is much larger than the groove space of the adjusting ring 124 from zero to 90 degrees, thereby realizing the maximum liquid nitrogen input.
[0040] The base 101 is rotatably connected with a transmission shaft 123 , the upper shaft 117 is frictionally connected to the transmission shaft 123 via a belt, and the transmission shaft 123 is frictionally connected to an adjustment ring 124 via a belt.
[0041] The push of the baffle 109 by the liquid nitrogen on the injection pipe 107 and the restriction of the liquid nitrogen by the adjustment ring 124 on the vacuum pipe 104 are transmitted through the belt and the transmission shaft 123, thereby realizing the automatic control of the output and input of the liquid nitrogen.
[0042] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A liquid nitrogen filling intelligent control device, comprising a base (101), characterized in that: A storage box (105) is fixedly mounted on the base (101), a vacuum tube (104) is fixedly mounted on the storage box (105), an adjustment shell (125) is fixedly mounted on the vacuum tube (104), an adjustment ring (124) is rotatably connected to the adjustment shell (125), a notch is provided on the adjustment ring (124), an injection tube (107) is fixedly mounted on the storage box (105), a limit shell (108) is fixedly mounted on the injection tube (107), a baffle (109) is slidably connected to the limit shell (108), and an inclined surface is provided on the baffle (109).
2. The intelligent control device for liquid nitrogen filling according to claim 1, characterized in that: The base (101) is fixedly mounted with an insulation box (102), a filling pipe (103) is fixedly mounted on the insulation box (102), and a control box (106) is fixedly mounted on the storage box (105).
3. The intelligent control device for liquid nitrogen filling according to claim 1 is characterized in that: The baffle (109) is fixedly connected to an upper slide bar (110), the upper slide bar (110) is slidably connected to the base (101), the upper slide bar (110) is fixedly connected to an intermediate push plate (111), the intermediate push plate (111) is fixedly connected to a first end of an upper spring (112), the second end of the upper spring (112) is fixedly connected to the base (101), the upper slide bar (110) is rotatably connected to a first end of an upper connecting rod (113), and the second end of the upper connecting rod (113) is rotatably connected to a large turntable (114).
4. The intelligent control device for liquid nitrogen filling according to claim 3 is characterized in that: The base (101) is rotatably connected to an upper shaft (117), a ratchet (116) is fixedly mounted on the upper shaft (117), a mounting ring (118) is rotatably connected to the upper shaft (117), the mounting ring (118) is fixedly connected to the large rotating disk (114), a plurality of ratchets (115) are rotatably connected to the large rotating disk (114), and a torsion spring is arranged on the ratchets (115).
5. The intelligent control device for liquid nitrogen filling according to claim 4 is characterized in that: A small rotating ring (122) is fixedly mounted on the upper shaft (117), and a plurality of protruding rods are arranged on the small rotating ring (122). A lower sliding rod (119) is slidably connected to the base (101), and the first end of the lower sliding rod (119) is rotatably connected to the first end of a lower connecting rod (121), and a torsion spring is arranged on the first end of the lower connecting rod (121), and the second end of the lower connecting rod (121) contacts the small rotating ring (122), and the second end of the lower sliding rod (119) is fixedly connected to the first end of a lower spring (120), and the second end of the lower spring (120) is fixedly connected to the base (101).
6. The intelligent control device for liquid nitrogen filling according to claim 1, characterized in that: The base (101) is rotatably connected to a transmission shaft (123); the upper shaft (117) is frictionally connected to the transmission shaft (123) via a belt; and the transmission shaft (123) is frictionally connected to an adjustment ring (124) via a belt.
Citation Information
Cited By
Wind tunnel airfoil low-temperature reciprocating loading test method and device
CN121163810A