CN210832748U

CN210832748U - Cold and hot type thermostat for feeding and taking system

Info

Publication number: CN210832748U
Application number: CN201921901156.1U
Authority: CN
Inventors: 董运华; 白志伟; 贺邓; 彭博; 张茗洋
Original assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Current assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-23
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a cold and hot type thermostat for a material supplying and taking system, which comprises a shell, an inner part and a separating cylinder which are sleeved from outside to inside, wherein a container to be cooled is placed in the separating cylinder, the separating cylinder is of a double-layer structure, a heat exchange pipeline and heating and cooling temperature sensors are arranged in a cavity between the inner layer and the outer layer, and a cold energy transfer medium is filled in the cavity; heating wires are arranged on the inner walls of the inner container and the separating cylinder; and a cold quantity transmission medium is filled between the inner wall of the separation cylinder and the outer wall of the container to be cooled. The utility model has the functions of temperature reduction and temperature rise, and does not need to be disassembled when being used alternately; the liquid nitrogen and the direct current heater are utilized to realize the required temperature and keep the design temperature constant, which can meet the temperature range of-120 ℃ to +60 ℃, and the device has the advantages of simple structure, low power consumption, small volume, low failure rate, low noise and the like. The special liquid nitrogen heat exchange pipeline effectively reduces the temperature difference between the inlet end and the outlet end, and is favorable for improving the temperature uniformity in the cavity during refrigeration.

Description

Cold and hot type thermostat for feeding and taking system

Technical Field

The utility model belongs to the thermostatic equipment field, concretely relates to cold and hot type thermostat for supplying extracting system.

Background

The experimental material supply and taking process system is used as a matching system for related researches, a material heating and evaporation process is used during material supply, and a cold solidification low-temperature collection process is used during material collection. The conventional method for realizing the supply and receiving functions uses two devices, namely a heater and a cooler, a test system needs to exchange heating and freezing devices frequently, and the problems of long unfreezing period, complex operation and low test efficiency exist. Simultaneously, for the experimental feeding and taking system, the device has the following characteristics: the space of the place is small, and the volume of the equipment is small; the requirement on process temperature is high, and equipment needs to be kept warm for a certain time when power failure and other faults occur. The research and design of a small-sized cold and hot type thermostat with integrated freezing and heating functions is a fundamental way for solving the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a overcome the shortcoming that exists among the prior art and propose, its purpose provides a cold and hot type thermostat for supplying material taking system.

The utility model discloses a realize through following technical scheme:

a cold and hot type thermostat for a material supplying and taking system comprises a shell, an inner container arranged in the shell and a separating cylinder arranged in the inner container, wherein a container to be cooled is placed in the separating cylinder, the separating cylinder is of a double-layer structure, a heat exchange pipeline and heating and cooling temperature sensors are arranged in a cavity between an inner layer and an outer layer, and a cold quantity transfer medium is filled in the cavity; heating wires are arranged on the inner walls of the inner container and the separating cylinder; and a cold quantity transmission medium is filled between the inner wall of the separation cylinder and the outer wall of the container to be cooled.

In the technical scheme, the separation cylinder is arranged with a gap between the inner container and the cooling container.

In the technical scheme, the cold energy transfer medium is phi 3 solid aluminum beads.

In the technical scheme, the top of the separation cylinder is provided with a filling opening.

In the technical scheme, the heat exchange pipeline comprises a pipeline I and a pipeline II which are both snakelike copper pipes, and the pipeline I and the pipeline II are arranged side by side.

In the technical scheme, the directions of the liquid inlet and outlet of the No. I pipeline and the liquid inlet and outlet of the No. II pipeline are opposite.

In the technical scheme, the liquid inlets of the No. I pipeline and the No. II pipeline are connected to the liquid outlet of the electromagnetic valve through a tee joint, and the exhaust ports are led out on the equipment in a unified mode.

In the technical scheme, the expansion lengths of the No. I pipeline and the No. II pipeline are the same.

In the above technical solution, the heating wire is spirally installed on the inner wall of the inner container or the inner side of the inner wall of the separation cylinder.

In the above technical scheme, the heating wire is a silica gel heating wire.

The utility model has the advantages that:

the utility model provides a cold and hot type thermostat for a material supplying and taking system, which has the functions of temperature reduction and temperature rise and does not need to be disassembled when being used alternately; the liquid nitrogen and the direct current heater are utilized to realize the required temperature and keep the design temperature constant, which can meet the temperature range of-120 ℃ to +60 ℃, and the device has the advantages of simple structure, low power consumption, small volume, low failure rate, low noise and the like. The special liquid nitrogen heat exchange pipeline effectively reduces the temperature difference between the inlet end and the outlet end, is favorable for improving the temperature uniformity in the cavity during refrigeration, and is integrally designed to conceal the sealing cover, the control instrument, the pipeline and the line.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of a heat exchange pipeline in the present invention.

Wherein:

1 inner container and 2 separating cylinder

3 heat exchange pipeline of container to be cooled 4

No. 5I pipeline and No. 6 II pipeline

No. 7I pipeline liquid inlet and No. 8 II pipeline liquid inlet

No. 9I pipeline liquid outlet and No. 10 II pipeline liquid outlet

11, a shell.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description is further provided with reference to the drawings and specific embodiments to describe a technical solution of a cold and hot type thermostat for a feeding and discharging system.

As shown in fig. 1, a cold and hot type thermostat for a material supplying and taking system comprises a housing 11, an inner container 1 arranged inside the housing 11, and a separating cylinder 2 arranged inside the inner container 1, wherein a container 3 to be cooled is placed in the separating cylinder 2, the separating cylinder 2 is of a double-layer structure, a heat exchange pipeline 4 is arranged in a cavity between an inner layer and an outer layer, and a cold energy transfer medium is filled in the cavity; heating wires are arranged on the inner walls of the inner container 1 and the separating cylinder 2; and a cold quantity transmission medium is filled between the inner wall of the separation cylinder 2 and the outer wall of the container 3 to be cooled.

The separation cylinder 2 is arranged with a gap between the inner container 1 and the cooling container 3.

The cold energy transfer medium is phi 3 solid aluminum beads, the temperature difference of each region is relatively smaller theoretically, the medium material cannot generate phase change in the range from normal temperature to minus 80 ℃, the physical properties are stable, safe and reliable, and zero consumption is achieved in the non-phase change process of the material.

The top of the separation cylinder 2 is provided with a filling opening, and solid aluminum beads serving as a cold energy transfer medium are filled into a cavity between the inner side and the outer side of the separation cylinder 2 from the filling opening.

The cold energy transfer medium between the inner wall of the separation cylinder 2 and the outer wall of the container 3 to be cooled is filled in a gap (15 mm) between the container 3 to be cooled and the separation cylinder 2 after the container 3 to be cooled is installed, the container 3 to be cooled, the separation cylinder 2 and the heat exchange pipeline 4 are effectively contacted after being filled with aluminum balls, and the cold energy transfer is direct.

Heat transfer pipeline 4 is including No. I pipeline 5 and II pipeline 6 that are snakelike copper pipe, and both set up side by side. The liquid inlet and outlet 7/9 of the pipeline I5 and the liquid inlet and outlet 8/10 of the pipeline II 6 are opposite in direction, so that the overall temperature difference is reduced. No. I pipeline 5 and II pipeline 6's inlet is merged into by the tee bend and is connected to the solenoid valve leakage fluid dram, and the gas vent is unified to be drawn forth on equipment, accomplishes synchronous feed liquor, synchronous exhaust. No. I pipeline 5 and II pipeline 6 expand the same length, and heat exchange efficiency does not have obvious difference. Liquid nitrogen is used as cold sources in the pipeline 5I and the pipeline 6 II, and the integrated functions of freezing, cooling, heating and heating of the container are achieved.

No. I pipeline 5 and II pipeline 6 are by the snakelike pipeline that a plurality of U type pipe continuous connection just followed circumference evenly distributed and constitute, and the junction is the circular arc transition.

The heating wire is spirally installed on the inner wall of the inner container 1 or the inner wall of the separation barrel 2, and the heating wire is a silica gel heating wire with good flexibility and surface insulation and water resistance. The design reduces the heat transfer path of the equipment and increases the heat transfer efficiency. The heating wire on the inner wall of the inner container 1 heats and controls the temperature of the cold quantity transmission medium in the separation cylinder 2, and the heating wire on the inner side of the inner wall of the separation cylinder 2 heats and controls the temperature of the cold quantity transmission medium between the inner wall of the separation cylinder 2 and the outer wall of the container 3 to be cooled. The temperature sensor and the temperature sensor used for cooling are located at the same position.

The utility model discloses a overall structure for supplying cold and hot type thermostat of extracting system adopts the structural style of interior round foreign side, and shell 11 is the cuboid type promptly, and inner bag 1 is cylindrical structure. The square shell 11 is used for integrating all parts, the inner container 1 is used for providing a constant temperature environment, the inner container 1 is a high-vacuum multi-layer heat-insulating container and is integrally formed by welding 06Cr19Ni10 materials, and the square shell is suitable for a cold and hot environment. The separating cylinder 2 is made of aluminum alloy materials, the heat conductivity is good, and the shell, the inner container and the separating cylinder 2 are sealed at the opening part by using double semicircular hoops; the used heat-insulating sealing cotton is Alles sponge, has good elasticity and has certain cold and hot environment service performance.

The heating and cooling temperature sensors measure the real-time temperature in the thermostat, and the measured data is processed by the PID controller to judge the on and off of the electromagnetic valve and the heater, so as to realize cooling and heating; the heater can be designed into a multi-gear design, and the heating rate is selected according to the requirement.

The utility model provides a cold and hot type thermostat for a material supplying and taking system, which has the functions of temperature reduction and temperature rise and does not need to be disassembled when being used alternately; the liquid nitrogen and the direct current heater are utilized to realize the required temperature and keep the design temperature constant, which can meet the temperature range of-120 ℃ to +60 ℃, and the device has the advantages of simple structure, low power consumption, small volume, low failure rate, low noise and the like. The special liquid nitrogen heat exchange pipeline effectively reduces the temperature difference of the inlet end and the outlet end, is favorable for improving the temperature uniformity in the cavity during refrigeration, and the sealing cover, the control instrument, the pipeline and the circuit are installed in a concealed mode through the integrated design of the shell and the inner container.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.

Claims

1. A cold and hot type thermostat for supplying and taking material system, includes shell (11), its characterized in that: the container to be cooled is placed in the separating cylinder (2), the separating cylinder (2) is of a double-layer structure, a heat exchange pipeline (4) and a heating and cooling temperature sensor are arranged in a cavity between the inner layer and the outer layer, and a cold quantity transfer medium is filled in the cavity; heating wires are arranged on the inner walls of the inner container (1) and the separating cylinder (2); and a cold energy transfer medium is filled between the inner wall of the separation cylinder (2) and the outer wall of the container (3) to be cooled.

2. A cold-hot type thermostat for an infeed system as claimed in claim 1 wherein: the separation cylinder (2) is arranged with a gap between the inner container (1) and the cooling container (3).

3. A cold-hot type thermostat for an infeed system as claimed in claim 1 wherein: the cold energy transmission medium is phi 3 solid aluminum beads.

4. A cold-hot type thermostat for an infeed system as claimed in claim 1 wherein: the top of the separation cylinder (2) is provided with a filling opening.

5. A cold-hot type thermostat for an infeed system as claimed in claim 1 wherein: heat transfer pipeline (4) are including I pipeline (5) and II pipeline (6) that are snakelike copper pipe, and both set up side by side.

6. A cold-hot type thermostat for an infeed system as claimed in claim 5 wherein: no. I pipeline (5) and II pipeline (6) business turn over liquid mouth opposite direction.

7. A cold-hot type thermostat for an infeed system as claimed in claim 5 wherein: liquid inlets of the pipeline I (5) and the pipeline II (6) are connected to a liquid outlet of the electromagnetic valve through a tee joint, and air outlets are led out on equipment in a unified mode.

8. A cold-hot type thermostat for an infeed system as claimed in claim 5 wherein: the expansion lengths of the pipeline I (5) and the pipeline II (6) are the same.

9. A cold-hot type thermostat for an infeed system as claimed in claim 1 wherein: the heating wire is spirally arranged on the inner wall of the inner container (1) or the inner side of the inner wall of the separation cylinder (2).

10. A cold-hot type thermostat for a feeding and reclaiming system as claimed in claim 1 or 9 wherein: the heating wire is a silica gel heating wire.