CN202484594U - Pre-cooling device for liquid nitrogen transmission branch line - Google Patents
Pre-cooling device for liquid nitrogen transmission branch line Download PDFInfo
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- CN202484594U CN202484594U CN2012200935871U CN201220093587U CN202484594U CN 202484594 U CN202484594 U CN 202484594U CN 2012200935871 U CN2012200935871 U CN 2012200935871U CN 201220093587 U CN201220093587 U CN 201220093587U CN 202484594 U CN202484594 U CN 202484594U
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 244
- 239000007788 liquid Substances 0.000 title claims abstract description 124
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 122
- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 title claims description 18
- 239000007789 gas Substances 0.000 claims abstract description 9
- 238000004172 nitrogen cycle Methods 0.000 claims description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
本实用新型公开了一种用于液氮传输支线的预冷装置，其设置于一液氮传输支线的末端，并包括：一液氮传输管道，其具有一液氮进口；一蒸发器，其入口与液氮传输管道连接；一回气管道，其与蒸发器的出口连接；一电磁阀，设于回气管道上；一温度传感器，设于液氮传输管道上，实时检测液氮传输管道内液氮的温度；一温度控制箱，其与温度传感器连接，接收温度传感器传输的温度信号；温度控制箱还与电磁阀连接，以根据其接收的温度信号控制电磁阀的打开和闭合。
The utility model discloses a precooling device for a liquid nitrogen transmission branch line, which is arranged at the end of a liquid nitrogen transmission branch line, and comprises: a liquid nitrogen transmission pipeline, which has a liquid nitrogen inlet; an evaporator, which The inlet is connected to the liquid nitrogen transmission pipeline; a gas return pipeline is connected to the outlet of the evaporator; a solenoid valve is installed on the gas return pipeline; a temperature sensor is installed on the liquid nitrogen transmission pipeline to detect the inside of the liquid nitrogen transmission pipeline in real time The temperature of liquid nitrogen; a temperature control box, which is connected with the temperature sensor, and receives the temperature signal transmitted by the temperature sensor; the temperature control box is also connected with the solenoid valve, so as to control the opening and closing of the solenoid valve according to the temperature signal it receives.
Description
技术领域 technical field
本实用新型涉及一种低温液氮传输辅助装置，尤其涉及一种冷却装置。The utility model relates to a low-temperature liquid nitrogen transmission auxiliary device, in particular to a cooling device.
背景技术 Background technique
液氮输送系统是用于三代同步光源的设备，其用于光源试验。现有的液氮输送系统通过四条插入件线站液氮支线与进口的液氮循环机组相连，从而为液氮循环机组补充液氮。The liquid nitrogen delivery system is a device for the three-generation synchronous light source, which is used for light source experiments. The existing liquid nitrogen delivery system is connected to the imported liquid nitrogen circulation unit through four plug-in line station liquid nitrogen branch lines, so as to replenish liquid nitrogen for the liquid nitrogen circulation unit.
现有的这种液氮输送系统具有以下问题：The existing liquid nitrogen delivery system has the following problems:
(1)补液时间较长；(1) The rehydration time is longer;
(2)补液时间长短无法确定。(2) The length of rehydration time cannot be determined.
发明内容 Contents of the invention
本实用新型的目的是提供用于液氮传输支线的预冷装置，该预冷装置应当能够解决液氮输送系统为液氮循环机组补充液氮时间较长以及补液时间无法确定的问题。The purpose of this utility model is to provide a pre-cooling device for the liquid nitrogen transmission branch line. The pre-cooling device should be able to solve the problems that the liquid nitrogen delivery system takes a long time to replenish liquid nitrogen for the liquid nitrogen cycle unit and the liquid replenishment time cannot be determined.
根据上述实用新型的目的，本实用新型提出了一种用于液氮传输支线的预冷装置，其设置于一液氮传输支线的末端，并包括：According to the purpose of the utility model above, the utility model proposes a precooling device for a liquid nitrogen transmission branch line, which is arranged at the end of a liquid nitrogen transmission branch line, and includes:
一液氮传输管道，其具有一液氮进口；A liquid nitrogen transmission pipeline, which has a liquid nitrogen inlet;
一蒸发器，其入口与液氮传输管道连接；An evaporator, the inlet of which is connected to the liquid nitrogen transfer pipeline;
一回气管道，其与蒸发器的出口连接；A return gas pipeline, which is connected with the outlet of the evaporator;
一电磁阀，设于回气管道上；采用电磁阀控制液氮流动能够有效提高系统运行的安全性与可靠性，并能够减少噪声、振动对周围环境产生的不良影响。A solenoid valve is located on the return gas pipeline; the use of solenoid valves to control the flow of liquid nitrogen can effectively improve the safety and reliability of system operation, and can reduce the adverse effects of noise and vibration on the surrounding environment.
一温度传感器，设于液氮传输管道上，实时检测液氮传输管道内液氮的温度；A temperature sensor, installed on the liquid nitrogen transmission pipeline, detects the temperature of liquid nitrogen in the liquid nitrogen transmission pipeline in real time;
一温度控制箱，其与温度传感器连接，接收温度传感器传输的温度信号；温度控制箱还与电磁阀连接，以根据其接收的温度信号控制电磁阀的打开和闭合。温度控制箱有以下功能：A temperature control box is connected with the temperature sensor and receives the temperature signal transmitted by the temperature sensor; the temperature control box is also connected with the solenoid valve to control the opening and closing of the solenoid valve according to the temperature signal it receives. The temperature control box has the following functions:
(1)设定一预冷温度以及一上限温度与一下限温度；(1) Set a pre-cooling temperature, an upper limit temperature and a lower limit temperature;
(2)接受温度传感器的信号，并与上限温度和下限温度做比较；(2) Accept the signal of the temperature sensor and compare it with the upper limit temperature and the lower limit temperature;
(3)控制电磁阀打开或关闭；(3) Control the solenoid valve to open or close;
(4)给电磁阀供电。(4) Supply power to the solenoid valve.
在使用本技术方案前，需先在温度控制箱上设置预冷温度以及上限温度与下限温度。当温度传感器测量到液氮传输管道内液氮的温度高于上限温度时，温度控制箱控制电磁阀打开，使得液氮传输管道内产生压差，液氮由于压差作用，从液氮进口流向蒸发器。液氮在蒸发器被蒸发成氮气后，再通过回气管道排回回气总管。此时，由于压差作用，液氮进口不断有新的液氮流入到液氮传输管道内。当温度传感器测量到液氮传输管道内液氮的温度低于下限温度时，温度控制箱控制电磁阀关闭，从而使得液氮传输管道内的压差消失，液氮停止流动，直到温度传感器再次测得液氮传输管道内液氮的温度高于上限温度。如此循环往复，从而将液氮传输管道内液氮的温度控制在上限温度与下限温度之间。Before using this technical solution, it is necessary to set the pre-cooling temperature, upper limit temperature and lower limit temperature on the temperature control box. When the temperature sensor detects that the temperature of liquid nitrogen in the liquid nitrogen transmission pipeline is higher than the upper limit temperature, the temperature control box controls the solenoid valve to open, so that a pressure difference is generated in the liquid nitrogen transmission pipeline, and the liquid nitrogen flows from the liquid nitrogen inlet to the Evaporator. After the liquid nitrogen is evaporated into nitrogen in the evaporator, it is discharged back to the return gas main through the return gas pipeline. At this time, due to the pressure difference, the liquid nitrogen inlet continuously has new liquid nitrogen flowing into the liquid nitrogen transmission pipeline. When the temperature sensor detects that the temperature of liquid nitrogen in the liquid nitrogen transmission pipeline is lower than the lower limit temperature, the temperature control box controls the solenoid valve to close, so that the pressure difference in the liquid nitrogen transmission pipeline disappears, and the liquid nitrogen stops flowing until the temperature sensor measures again. The temperature of the liquid nitrogen in the liquid nitrogen transmission pipeline is higher than the upper limit temperature. This cycle is repeated, so that the temperature of the liquid nitrogen in the liquid nitrogen transmission pipeline is controlled between the upper limit temperature and the lower limit temperature.
在上述的用于液氮传输支线的预冷装置中，液氮传输管道包括：In the above-mentioned precooling device for the liquid nitrogen transmission branch line, the liquid nitrogen transmission pipeline includes:
一第一液氮传输支管，液氮进口为第一液氮传输支管的一端，第一液氮传输支管的另一端与一液氮循环机组连接，温度传感器设于第一液氮传输支管上；A first liquid nitrogen transmission branch pipe, the liquid nitrogen inlet is one end of the first liquid nitrogen transmission branch pipe, the other end of the first liquid nitrogen transmission branch pipe is connected to a liquid nitrogen circulation unit, and the temperature sensor is arranged on the first liquid nitrogen transmission branch pipe;
一第二液氮传输支管，其一端与第一液氮传输支管在一第一结点导通连接，第二液氮传输支管的另一端与蒸发器的入口连接。A second liquid nitrogen transfer branch pipe, one end of which is conductively connected with the first liquid nitrogen transfer branch pipe at a first node, and the other end of the second liquid nitrogen transfer branch pipe is connected with the inlet of the evaporator.
在上述的用于液氮传输支线的预冷装置中，第一液氮传输支管上还设有一阀，其设置于第一结点与第一液氮传输支管的另一端之间。In the above-mentioned precooling device for the liquid nitrogen transfer branch line, a valve is further provided on the first liquid nitrogen transfer branch pipe, which is arranged between the first node and the other end of the first liquid nitrogen transfer branch pipe.
优选地，在上述用于液氮传输支线的预冷装置中，所述电磁阀为低温直流电磁阀。采用低温直流电磁阀可以有效提高整个系统运行的安全可靠性，同时减少噪音、振动等对周围环境造成的不利影响。Preferably, in the above-mentioned precooling device for the liquid nitrogen transmission branch line, the solenoid valve is a low-temperature DC solenoid valve. The use of low-temperature DC solenoid valves can effectively improve the safety and reliability of the entire system operation, and at the same time reduce the adverse effects of noise and vibration on the surrounding environment.
本实用新型所述的用于液氮传输支线的预冷装置通过在插入件线站液氮支线的末端增设预冷装置，从而有效缩短了液氮输送系统为液氮循环机组补充液氮时间，并且提高了补液的稳定性。The pre-cooling device used in the liquid nitrogen transmission branch line described in the utility model adds a pre-cooling device at the end of the liquid nitrogen branch line of the insert line station, thereby effectively shortening the time for the liquid nitrogen delivery system to replenish liquid nitrogen for the liquid nitrogen cycle unit. And improve the stability of the rehydration.
附图说明 Description of drawings
图1是本实用新型所述的用于液氮传输支线的预冷装置在一种实施方式下的结构示意图。Fig. 1 is a structural schematic diagram of an embodiment of the precooling device used in the liquid nitrogen transmission branch line according to the present invention.
具体实施方式 Detailed ways
下面将结合说明书附图和具体的实施例对本实用新型所述的用于液氮传输支线的预冷装置做进一步的详细说明。The pre-cooling device used in the liquid nitrogen transmission branch line of the present utility model will be further described in detail in conjunction with the accompanying drawings and specific embodiments below.
图1显示了本实用新型所述的用于液氮传输支线的预冷装置在本实施例中的结构。如图1所示，液氮传输管道包括第一液氮传输支管1与第二液氮传输支管2。第一液氮传输支管1的一端为液氮进口A，其另一端与液氮循环机组8连接。在第一液氮传输支管1上有一个第一结点，温度传感器6与阀9均设于第一结点与第一液氮传输支管1的另一端之间，温度传感器6用以实时检测管道内液氮的温度。第二液氮传输支管2的一端与第一液氮传输支管1在第一结点导通连接，其另一端与蒸发器3的入口连接。蒸发器3的出口与回气管道4连接，回气管道4上还设有电磁阀5。温度控制箱7分别与温度传感器6、低温直流电磁阀5连接，其功能为：Fig. 1 shows the structure of the pre-cooling device used in the liquid nitrogen transmission branch line of the present invention in this embodiment. As shown in FIG. 1 , the liquid nitrogen transmission pipeline includes a first liquid nitrogen transmission branch pipe 1 and a second liquid nitrogen transmission branch pipe 2 . One end of the first liquid nitrogen transfer branch pipe 1 is a liquid nitrogen inlet A, and the other end thereof is connected with a liquid
(1)设定一预冷温度以及一上限温度与一下限温度；(1) Set a pre-cooling temperature, an upper limit temperature and a lower limit temperature;
(2)接受温度传感器6的信号，并与上限温度和下限温度做比较；(2) accept the signal of
(3)控制低温直流电磁阀5打开或关闭；(3) control the low temperature DC solenoid valve 5 to open or close;
(4)给电磁阀5供电。(4) Supply power to the solenoid valve 5 .
请继续参阅图1，在使用本实施例所述的预冷装置前，需先在温度控制箱7上设置预冷温度以及上限温度与下限温度，在本实施例中，预冷温度设置为-100℃，上限温度为-95℃，下限温度为-105℃。当温度传感器6测量到液氮传输管道内液氮的温度高于-95℃(上限温度)时，温度控制箱7控制低温直流电磁阀5打开，使得液氮传输管道内产生压差，液氮由于压差作用，从液氮进口A经第一液氮传输支管1与第二液氮传输支管2流向蒸发器3。液氮在蒸发器3被蒸发成氮气后，再通过回气管道4排回回气总管。此时，由于压差作用，液氮进口A不断有新的液氮流入到液氮传输管道内。当温度传感器6测量到液氮传输管道内液氮的温度低于-105℃(下限温度)时，温度控制箱7控制低温直流电磁阀5关闭，从而使得液氮传输管道内的压差消失，液氮停止流动，直到温度传感器6再次测得液氮传输管道内液氮的温度高于-95℃(上限温度)。如此循环往复，从而将液氮传输管道内液氮的温度控制在-105～-95℃(上限温度与下限温度之间)。Please continue to refer to Fig. 1, before using the pre-cooling device described in this embodiment, the pre-cooling temperature, the upper limit temperature and the lower limit temperature need to be set on the
要注意的是，以上列举的仅为本实用新型的具体实施例，显然本实用新型不限于以上实施例，随之有着许多的类似变化。本领域的技术人员如果从本实用新型公开的内容直接导出或联想到的所有变形，均应属于本实用新型的保护范围。It should be noted that the above examples are only specific embodiments of the present utility model, and obviously the present utility model is not limited to the above embodiments, and there are many similar changes thereupon. If those skilled in the art directly derive or associate all deformations from the content disclosed in the utility model, they shall all belong to the protection scope of the utility model.
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| CN2012200935871U CN202484594U (en) | 2012-03-13 | 2012-03-13 | Pre-cooling device for liquid nitrogen transmission branch line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109178736A (en) * | 2018-08-02 | 2019-01-11 | 王金玉 | A kind of food processing station-service flour storage method |
| CN113406129A (en) * | 2021-07-28 | 2021-09-17 | 重庆大学 | Liquid nitrogen evaporator for X-ray single crystal diffractometer |
-
2012
- 2012-03-13 CN CN2012200935871U patent/CN202484594U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109178736A (en) * | 2018-08-02 | 2019-01-11 | 王金玉 | A kind of food processing station-service flour storage method |
| CN113406129A (en) * | 2021-07-28 | 2021-09-17 | 重庆大学 | Liquid nitrogen evaporator for X-ray single crystal diffractometer |
| CN113406129B (en) * | 2021-07-28 | 2022-11-29 | 重庆大学 | Liquid nitrogen evaporator for X-ray single crystal diffractometer |
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Granted publication date: 20121010 Termination date: 20130313 |