Miniature high-low-temperature low-pressure experiment device

Abstract

The utility model provides a miniature high-low-temperature low-pressure experiment device, which comprises a low-pressure system, a structural system and a temperature control system, the low-pressure system is connected with the structural system through a metal braided hose; the device adopts a square structure with the maximum space utilization rate, is simple and practical, occupies a small space, is convenient to combine and use, and meets the requirements of single low-pressure and single-high-temperature tests, single low-temperature tests, high-low-temperature alternating tests and low-pressure and temperature comprehensive tests of small products. The space utilization rate is improved, the product performance range is expanded, the control mode is simple, stable and reliable, and the cost of experimental equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of low-pressure experimental devices, and in particular relates to a micro high-low temperature and low-pressure experimental device. Background Art

[0002] At present, the existing micro-experimental equipment on the market has a single function, such as a high and low temperature environment chamber, or a single pressure test chamber, which greatly limits the scope of use of the equipment. In order to save space for experimental equipment, facilitate transportation, and enrich comprehensive experiments for small equipment and experimental animals, a comprehensive micro-experimental equipment is provided. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a miniature high-low-temperature and low-pressure experimental device and an experimental method thereof which occupies a small space and can realize a variety of single and combined experiments.

[0004] The utility model is realized by the following technical solutions:

[0005] A micro high-low temperature and low-pressure experimental device comprises: a low-pressure system, a structural system, and a temperature control system; the low-pressure system is connected to the structural system through a metal braided hose; and the temperature control system is installed outside the structural system.

[0006] Furthermore, the low-pressure system includes: a vacuum equipment box and a solenoid valve, a filter, and a flow meter connected in sequence; the vacuum equipment box is composed of a vacuum pump, a frequency converter, a check valve, and a box body.

[0007] Furthermore, the flow meter is connected to the buffer tank and a manual valve that controls the buffer tank.

[0008] Furthermore, the structural system includes: an evaporator heating system, a pressure test chamber, an observation window, a hinge, a chamber door, a door lock, and a touch screen; the observation window is installed on the top of the pressure test chamber; the chamber door is hinged to one side of the pressure test chamber by a hinge and is equipped with a door lock; the touch screen is snapped onto the pressure test chamber; the evaporator heating system is installed on the top of the pressure test chamber next to the observation window.

[0009] Furthermore, the temperature control system includes an evaporator heating system and an external unit of a temperature control device.

[0010] Furthermore, the temperature control system and the structural system are connected by copper tubes and sodium joints, and the circuit is connected by aviation plugs.

[0011] An experimental method of a micro high-low-temperature and low-pressure experimental device comprises the following steps:

[0012] a. After checking that all components are in normal working condition, bring the animals or small products that need to be tested into the chamber to the door;

[0013] b. Open the door to the full open position;

[0014] c. Place the animal or small product to be tested into the pressure test chamber and rotate the door lock to lock the chamber door;

[0015] d. The low-pressure system uses a frequency converter to control a vacuum pump to pump the air pressure in the pressure test chamber to the required test conditions through a solenoid valve, filter, and buffer tank, and maintains the air quality in the pressure test chamber through a regulator, flow meter, and solenoid valve until the end of the test;

[0016] e. The temperature control system is divided into two situations: high temperature control or low temperature control. High temperature control raises the temperature in the pressure test chamber to the required test conditions through the evaporator heating system; low temperature control reduces the temperature in the pressure test chamber to the required test conditions through the external unit of the temperature control equipment through the refrigeration pipeline and the evaporator heating system;

[0017] f. The test can adopt single pressure test, single temperature test, temperature alternation test of de steps according to specific requirements, or comprehensive operation to achieve more complex temperature-pressure comprehensive test.

[0018] Beneficial effects of the utility model:

[0019] The utility model adopts a square structure with maximum space utilization, which is simple and practical, occupies a small space, is easy to use in combination, and meets the needs of single low pressure test, single high temperature test, single low temperature test, high and low temperature alternating test and low pressure and temperature comprehensive test of small products, improves space utilization, expands product performance range, and the control method is simple, stable and reliable, which reduces the cost of experimental equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of the structural system described in the utility model.

[0022] Figure 2 It is a structural schematic diagram of the vacuum equipment box described in the utility model.

[0023] Figure 3 It is a structural schematic diagram of the pipeline system described in the utility model.

[0024] Figure 4 The electrical principle of this utility model Figure 1 .

[0025] Figure 5 The electrical principle of this utility model Figure 2 .

[0026] As shown in the figure: 1-evaporator heating system; 2-pressure test chamber; 3-observation window; 4-hinge; 5-box door; 6-door lock; 7-touch screen; 8-vacuum equipment box; 9-vacuum pump; 10-inverter; 11-check valve; 12-box; 13-regulator; 14-flow meter; 15-solenoid valve; 16-filter; 17-buffer tank; 18-hand valve; 19-temperature control equipment external unit. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] like Figure 1-Figure 4The miniature high and low temperature and low pressure experimental device shown includes: a low pressure system, a pressure test box 2, an observation window 3, a hinge 4, a box door 5, a door lock 6, a touch screen 7, a vacuum equipment box 8, a vacuum pump 9, a frequency converter 10, a check valve 11, a box body 12, a regulator 13, a flow meter 14, a solenoid valve 15, a filter 16, a buffer tank 17, a hand valve 18, and a temperature control device external unit 19.

[0031] The low-pressure system is connected through a metal braided hose and a structural system, and the low-pressure system includes: a vacuum equipment box 8 and a piping system; the piping system is a solenoid valve 15, a filter 16, and a flow meter 14 connected in sequence; the vacuum equipment box 8 is composed of a vacuum pump 9, a frequency converter 10, a check valve 11, and a box body 12; the flow meter 14 is connected to the buffer tank 17 through a hand valve 18.

[0032] The temperature control system is installed outside the structural system, and the temperature control system is connected to the structural system using copper pipes and sodium joints, and the circuit is connected using aviation plugs; the temperature control system includes an evaporator heating system 1 and a temperature control device external unit 19.

[0033] The structural system includes: an evaporator heating system 1, a pressure test box 2, an observation window 3, a hinge 4, a box door 5, a door lock 6, and a touch screen 7; the observation window 3 is installed on the top of the pressure test box 2; the box door 5 is hinged to one side of the pressure test box 2 through a hinge 4 and is equipped with a door lock 6; the touch screen 7 is snapped onto the pressure test box 2; the evaporator heating system 1 is installed on the top of the pressure test box 2 next to the observation window 3.

[0034] An experimental method of a micro high-low-temperature and low-pressure experimental device is characterized by comprising the following steps:

[0035] a. After checking that all components are in normal working condition, the animals or small products to be tested in the chamber are brought to the side of the chamber door 5;

[0036] b. Open the door 5 to the fully open state;

[0037] c. Place the tested animal or small product into the pressure test chamber 2, and rotate the door lock 6 to lock the door 5;

[0038] d. The low pressure system uses a frequency converter 10 to control a vacuum pump 9 to pump the air pressure in the pressure test chamber 1 to the required test conditions through a solenoid valve 15, a filter 16, and a buffer tank 17, and maintains the air quality in the pressure test chamber 1 through a regulator 13, a flow meter 14, and a solenoid valve 15 until the end of the test;

[0039] e. The temperature control system is divided into two situations: high temperature control or low temperature control. The high temperature control raises the temperature in the pressure test chamber 2 to the required test conditions through the evaporator heating system 2; the low temperature control lowers the temperature in the pressure test chamber 2 to the required test conditions through the temperature control device external unit 19 through the refrigeration pipeline and the evaporator heating system 1;

[0040] f. The test can adopt the single air pressure test, single temperature test, temperature alternation test of steps d~e according to specific requirements, or a comprehensive operation to achieve a more complex temperature-air pressure comprehensive test.

[0041] The test animals or product parts are placed in the pressure test box 2 for testing; the vacuum equipment box 8 is connected to the pressure test box 2 through a vacuum pipeline, and the low pressure function in the pressure test box 2 is realized through the PLC system; the low temperature function is realized by connecting the temperature control equipment external machine 19 to the evaporation heating system 1 through a copper tube and controlled by the PLC system; the high temperature function is realized by controlling the evaporation heating system 1 through the PLC system;

[0042] In actual use, the micro high and low temperature and low pressure experimental device described in the present invention can also be equipped with an emergency alarm buzzer, a pressure sensor, a temperature sensor, an indicator light, a control system and a UPS uninterruptible power supply, which are all commonly used electronic devices in the prior art. They are applied to the present invention as long as they can meet the safety and use requirements in the product. When the product fails, the emergency alarm buzzer will sound an emergency alarm, and the experimenter can promptly take corresponding measures according to the actual different situations.

[0043] The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A micro high-low-temperature and low-pressure experimental device, characterized in that It includes: a low-pressure system, a structural system and a temperature control system; the low-pressure system is connected to the structural system through a metal braided hose; and the temperature control system is installed outside the structural system.

2. A micro high-low temperature and low-pressure experimental device according to claim 1, characterized in that The low-pressure system comprises: a vacuum equipment box (8) and a pipeline system; the pipeline system is a solenoid valve (15), a filter (16), and a flow meter (14) connected in sequence; the vacuum equipment box (8) is composed of a vacuum pump (9), a frequency converter (10), a check valve (11), and a box body (12).

3. A micro high-low temperature and low-pressure experimental device according to claim 2, characterized in that The flow meter (14) is connected to the buffer tank (17) and a hand valve (18) for controlling the buffer tank (17).

4. A micro high-low temperature and low pressure experimental device according to claim 1, characterized in that The structural system comprises: an evaporator heating system (1), a pressure test chamber (2), an observation window (3), a hinge (4), a chamber door (5), a door lock (6), and a touch screen (7); the observation window (3) is installed on the top of the pressure test chamber (2); the chamber door (5) is hinged to one side of the pressure test chamber (2) through a hinge (4) and is equipped with a door lock (6); the touch screen (7) is snap-connected to the pressure test chamber (2); the evaporator heating system (1) is installed on the top of the pressure test chamber (2) next to the observation window (3).

5. A micro high-low-temperature and low-pressure experimental device according to claim 1, characterized in that The temperature control system comprises an evaporator heating system (1) and an external temperature control device (19).

6. A micro high-low-temperature and low-pressure experimental device according to claim 1, characterized in that The temperature control system and the structural system are connected by copper tubes and sodium joints, and the circuit is connected by aviation plugs.

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