Liquid nitrogen tank

Abstract

The utility model relates to the field of sample storage, in particular to a liquid nitrogen tank. Comprising a tank body and a tank cover, the tank cover is arranged at an opening of the tank body, a liquid suction pump is integrally arranged at the top of the tank cover, a liquid inlet pipe is arranged on a liquid inlet of the liquid suction pump, a liquid outlet pipe is arranged on a liquid outlet of the liquid suction pump, the liquid inlet pipe extends into the bottom of the tank body, and the liquid outlet pipe is arranged outside the tank body. And a control button for controlling the liquid suction pump to start and stop is arranged on the liquid suction pump. When the liquid nitrogen container is used for taking liquid nitrogen, a sample is not influenced.

Description

Technical Field

[0001] The utility model relates to the field of sample storage, in particular to a liquid nitrogen tank. Background Art

[0002] With the development of biotechnology, the demand for cryopreservation of biological samples is growing. As a common cryopreservation device for biological samples, the ability of liquid nitrogen tanks to maintain low temperatures is crucial to the activity of samples. When taking liquid nitrogen from existing liquid nitrogen tanks, it is often necessary to pour it manually or use other utensils. This is not only cumbersome to operate, but each time the lid is opened, it will affect the temperature inside the tank, which has a potential impact on the activity of the sample. Utility Model Content

[0003] The technical solution to be solved by the utility model is to provide a liquid nitrogen tank which will not affect the sample when taking liquid nitrogen.

[0004] The technical solution adopted by the utility model is: a liquid nitrogen tank, comprising a tank body and a tank cover, the tank cover is arranged at the opening of the tank body, a liquid suction pump is integrated on the top of the tank cover, a liquid inlet of the liquid suction pump is provided with a liquid inlet pipe, a liquid outlet of the liquid suction pump is provided with a liquid outlet, the liquid inlet pipe extends into the bottom of the tank body, the liquid outlet pipe is arranged outside the tank body, and a control button for controlling the start and stop of the liquid suction pump is provided on the liquid suction pump.

[0005] Preferably, the suction pump is also provided with a second control button for adjusting the flow rate.

[0006] Preferably, the liquid inlet pipe and the liquid outlet pipe both adopt a double-layer structure, with the inner layer being a stainless steel hose and the outer layer being a heat-insulating layer.

[0007] Preferably, the suction pump includes a motor for providing power to the suction pump and a battery for providing electrical energy to the motor.

[0008] Preferably, a liquid level sensor for measuring the internal liquid level and a temperature sensor for measuring the internal temperature are arranged inside the tank body, and a display module for displaying the internal liquid level, internal temperature and flow rate of the suction pump is arranged outside the tank body, and the liquid level sensor, temperature sensor and suction pump are all communicatively connected to the display module.

[0009] Preferably, a reminder module is also provided outside the tank body for issuing a reminder when the liquid level drops to a set value or the temperature rises to a set value, and the liquid level sensor and the temperature sensor are both communicatively connected to the reminder module.

[0010] Compared with the prior art, the utility model has the following advantages: a suction pump is arranged on the tank cover, and the liquid nitrogen in the tank body is sucked out by the suction pump, which is not only easy to operate, but also can keep the sample stable, and is safe and efficient.

[0011] A second button is provided to control the flow rate of the aspiration pump, so that the liquid nitrogen tank can meet different operating requirements. For example, the pump speed can be reduced when precise control of the liquid nitrogen flow rate is required.

[0012] The liquid inlet pipe and the liquid suction pipe are set into a double-layer structure. The stainless steel hose not only provides excellent corrosion resistance and low temperature resistance, but is also easy to install and operate due to its flexibility. The insulation layer can ensure temperature stability during liquid nitrogen transportation and reduce heat loss.

[0013] The liquid suction pump is driven by a motor, which has a better working effect, and a storage battery is provided so that the pump can continue to work when the external power supply fails.

[0014] A liquid level sensor and a temperature sensor are provided so that the user can know the liquid level and temperature in the tank body conveniently. A display screen is provided to display the liquid level, temperature and flow rate on the display screen, making it more convenient for the user to use.

[0015] Set up a reminder module so that reminders can be given when the temperature is high or the liquid level is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a liquid nitrogen tank.

[0017] Among them, 1. tank body; 2. tank cover; 3. liquid suction pump; 4. liquid inlet pipe; 5. liquid outlet pipe; 6. first control button; 7. second control button. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] Embodiment 1:

[0020] A liquid nitrogen tank, comprising a tank body 1 and a tank cover 2, wherein:

[0021] The tank cover 2 is integrally formed with a housing, and a liquid suction pump 3 is arranged in the housing. The liquid suction pump 3 is a very conventional product in the prior art, which uses a motor as a power source, can suck liquid from one place to another, and is provided with a first control button 6 for controlling its start and stop;

[0022] The liquid inlet of the liquid suction pump 3 is provided with a liquid inlet pipe 4, and the liquid outlet of the liquid suction pump 3 is provided with a liquid outlet pipe 5. The liquid inlet pipe 4 extends into the bottom of the tank body 1, and the liquid nitrogen in the tank body 1 can be extracted. The liquid outlet pipe 5 is arranged outside the tank body 1, and the user can receive the liquid nitrogen sucked out from the tank body 1; and the liquid inlet pipe 4 and the liquid outlet pipe 5 are both made of stainless steel hoses;

[0023] With the above structure, when the user needs to take liquid nitrogen, the first control button 6 is controlled, and the liquid suction pump 3 works to extract the liquid nitrogen from the tank body 1. This is not only easy to operate: the user only needs to press the switch to conveniently extract the liquid nitrogen, but also keeps the sample stable: the low temperature environment in the tank is maintained to the maximum extent, reducing the impact on the activity of the sample; and it is safe and efficient: the liquid suction pump 3 reduces the risk of manual dumping and improves the use efficiency.

[0024] Embodiment 2:

[0025] The difference from the first embodiment is that the second embodiment is further provided with a second control button 7 for controlling the flow rate of the suction pump 3, and a soft start constant power speed regulator is provided on the suction pump 3, through which the flow rate can be controlled, and the soft start function means that the current increase process when the pump starts is gradual, which helps to reduce the impact on the circuit and extend the service life of the pump. Constant power output ensures that the pump can maintain stable performance even at different speeds.

[0026] Embodiment three:

[0027] The difference from the first embodiment is that in the third embodiment, a heat-insulating layer is further provided outside the liquid inlet pipe 4 and the liquid outlet pipe 5, so that the temperature of the liquid nitrogen is stabilized during the delivery process, thereby reducing heat loss.

[0028] Embodiment 4:

[0029] The difference from the first embodiment is that in the fourth embodiment, a liquid level sensor and a temperature sensor are provided in the tank body 1, and a display screen is provided on the outer wall of the tank body 1. The liquid level detected by the liquid level sensor, the temperature detected by the temperature sensor and the flow rate of the suction pump 3 are all displayed on the display screen, which is definitely more convenient for users to use. These technologies are relatively conventional in the prior art, and the applicant has only applied these technologies to the liquid nitrogen tank.

[0030] Embodiment five:

[0031] The difference from Example 4 is that a reminder module is also provided in Example 5, and both the liquid level sensor and the temperature sensor are communicatively connected to the reminder module, so that the detected liquid level and temperature information can be sent to the alarm for judgment. The alarm can be short-range, emitting sound and light alarms at a short distance, or it can be a long-distance communication module, which alarms the user remotely.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0033] For those skilled in the art, various changes and modifications will undoubtedly be obvious after reading the above description. Therefore, the attached claims should be regarded as covering all changes and modifications to the true intent and scope of the utility model. Any and all equivalent ranges and contents within the scope of the claims should be considered to still be within the intent and scope of the utility model.

Claims

1. A liquid nitrogen tank, comprising a tank body (1) and a tank cover (2), wherein the tank cover (2) is arranged at the opening of the tank body (1), characterized in that: A liquid suction pump (3) is integrated on the top of the tank cover (2), and a liquid inlet pipe (4) is provided on the liquid inlet of the liquid suction pump (3), and a liquid outlet pipe (5) is provided on the liquid outlet of the liquid suction pump (3), the liquid inlet pipe (4) extends into the bottom of the tank body (1), the liquid outlet pipe (5) is arranged outside the tank body (1), and a control button for controlling the start and stop of the liquid suction pump (3) is provided on the liquid suction pump (3); The suction pump (3) is also provided with a second control button (7) for adjusting the flow rate; The liquid inlet pipe (4) and the liquid outlet pipe (5) both adopt a double-layer structure, with the inner layer being a stainless steel hose and the outer layer being a heat-insulating layer.

2. A liquid nitrogen tank according to claim 1, characterized in that: The suction pump (3) comprises a motor for providing power to the suction pump (3) and a storage battery for providing electrical energy to the motor.

3. A liquid nitrogen tank according to claim 1, characterized in that: The tank body (1) is provided with a liquid level sensor for measuring the internal liquid level and a temperature sensor for measuring the internal temperature. The tank body (1) is provided with a display module for displaying the internal liquid level, the internal temperature and the flow rate of the liquid suction pump (3). The liquid level sensor, the temperature sensor and the liquid suction pump (3) are all connected to the display module for communication.

4. A liquid nitrogen tank according to claim 3, characterized in that: The tank body (1) is also provided with a reminder module on the outside for issuing a reminder when the liquid level drops to a set value or the temperature rises to a set value, and the liquid level sensor and the temperature sensor are both in communication connection with the reminder module.

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