CN113176136A - Test device for simulating temperature shock environment - Google Patents
Test device for simulating temperature shock environment Download PDFInfo
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- CN113176136A CN113176136A CN202110446795.9A CN202110446795A CN113176136A CN 113176136 A CN113176136 A CN 113176136A CN 202110446795 A CN202110446795 A CN 202110446795A CN 113176136 A CN113176136 A CN 113176136A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
Abstract
The invention relates to the field of simulated environment temperature experiment devices, in particular to a test device for simulating a temperature shock environment. Comprises a frame; the experimental box is fixedly arranged on the rack; the experimental box is provided with a box body air inlet and a box body air outlet; the hot air generator is connected with an air inlet of the box body of the experimental box through a pipeline and comprises a blower, an air heater, a hot air tank and a connecting pipeline of the hot air generator; the cold air generator is respectively connected with the box body air inlet of the experimental box through pipelines, and comprises a compressor, a cold air tank and a connecting pipeline of the cold air generator; the valve, the connecting line of each subassembly is provided with a plurality of valves. The invention solves the technical problem of realizing energy-saving and high-efficiency temperature shock environment experiments by only using one experiment box through the joint use of the experiment box, the cold air generator and the hot air generator.
Description
Technical Field
The invention relates to the field of simulated environment temperature experiment devices, in particular to a test device for simulating a temperature shock environment.
Background
Environmental simulation test is an activity performed to maintain functional reliability under all circumstances of intended use, transport or storage. The product is exposed to natural or artificial environmental conditions to be subjected to the action of the product, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and research the influence degree of environmental factors and the action mechanism thereof.
The high-low temperature environment simulation experiment also belongs to one kind of environment simulation experiment, but the common environment temperature simulation experiment device at present can only simulate high temperature or low temperature, can not simulate the environment of temperature shock. A small number of experimental devices capable of simulating temperature shock also often need two experimental boxes, and when the experimental boxes move back and forth, the temperature in the experimental boxes can be influenced, and a good temperature shock simulation effect cannot be achieved. And when the simulated temperature suddenly changes, the refrigeration and heating energy consumption is very high, the residual heat and the residual cold cannot be fully utilized, and the experimental device is not energy-saving enough.
Disclosure of Invention
In order to solve the technical problem, a test device for simulating a temperature shock environment is provided.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a test device for simulating a temperature shock environment comprises,
a frame;
the experimental box is fixedly arranged on the rack; the experimental box is provided with a box body air inlet and a box body air outlet;
the experimental apparatus further comprises:
the hot air generator is arranged on the rack and is connected with an air inlet of the box body of the experimental box through a pipeline, and the hot air generator comprises a blower, an air heater, a hot air tank and a connecting pipeline of the hot air generator;
the cold air generator is arranged on the rack and is respectively connected with the box body air inlet of the experimental box through a pipeline, and the cold air generator comprises a compressor, a cold air tank and a connecting pipeline of the cold air generator;
the valve, the connecting line of each subassembly is provided with a plurality of valves.
Preferably, the test chamber is made of a heat insulating material, the test chamber comprises,
the box body is provided with an air inlet and an air outlet on the side wall, and a plurality of detachable placing plates are arranged in the box body;
the box door is hinged to the box body, a plurality of layers of sealing rings are arranged on the box door, and when the box door is attached to the box body, the sealing rings are clamped between the box body and the box door.
Preferably, the first and second liquid crystal materials are,
the air blower is provided with an air blower air inlet and an air blower air outlet, the air blower air inlet is arranged at the input end of the air blower, the air blower air outlet is arranged at the output end of the air blower, and the air blower air inlet is directly communicated with the air;
the air heater is provided with a heater air inlet and a heater air outlet, the heater air inlet is arranged at the input end of the air heater, the heater air outlet is arranged at the output end of the air heater, and the air outlet of the blower is connected with the heater air inlet through a pipeline;
the hot air tank is a sealed tank body, an air inlet of the hot air tank and an air outlet of the hot air tank are formed in the hot air tank, the air outlet of the heater is connected with the air inlet of the hot air tank through a pipeline, and the air outlet of the hot air tank is connected with the air inlet of the box body through a pipeline.
Preferably, the air outlet of the hot air tank is connected with the air inlet of the blower through a pipeline.
Preferably, a first pressurizing air pump is arranged on a connecting pipeline between the heater air outlet and the hot air tank air inlet, the input end of the first pressurizing air pump is connected with the heater air outlet through a pipeline, and the output end of the first pressurizing air pump is connected with the hot air tank air inlet through a pipeline.
Preferably, the air inlet of the blower is connected with the air outlet of the box body through a pipeline.
Preferably, the first and second liquid crystal materials are,
the compressor is provided with a compressor air inlet and a compressor air outlet, the compressor air inlet is arranged at the input end of the compressor, the compressor air outlet is arranged at the output end of the compressor, and the compressor air inlet is directly communicated with air;
the cold air tank is a sealed tank body, an air inlet of the cold air tank and an air outlet of the cold air tank are arranged on the cold air tank, the air inlet of the cold air tank is connected with the air outlet of the compressor through a pipeline, and the air outlet of the cold air tank is connected with the tank body through a pipeline.
Preferably, the air outlet of the cold air tank is connected with the air inlet of the compressor through a pipeline.
Preferably, a second pressurization air pump is arranged on a connecting pipeline between the air outlet of the compressor and the air inlet of the cold air tank, the input end of the second pressurization air pump is connected with the air outlet of the compressor through a pipeline, and the output end of the second pressurization air pump is connected with the air inlet of the cold air tank through a pipeline.
Preferably, the air inlet of the compressor is connected with the air outlet of the box body through a pipeline.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention solves the technical problem of realizing energy-saving and high-efficiency temperature shock environment experiments by only using one experiment box through the joint use of the experiment box, the cold air generator and the hot air generator.
2. The invention can ensure that the work of the cold air generator and the hot air generator is not influenced by respectively pre-cooling and pre-heating the cold air generator and the hot air generator, always keeps the refrigeration and heating states, and has the advantages of higher working efficiency and lower peak power.
3. According to the invention, through the design of the circulation loop of the cold and hot air generator and the experimental box, cold and hot air is recycled, and the recycled cold and hot air can participate in refrigeration and heating again, so that the energy-saving and work-efficiency-improving device has the advantages of energy conservation and work efficiency improvement.
4. The invention enables the air tank to have higher air pressure through the design of the pressurization air pump, can rapidly inject cold air and hot air into the experiment box, and has the advantage of rapid temperature change during simulation experiments.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention with the housing hidden;
FIG. 3 is a top view of the present invention with the housing concealed;
FIG. 4 is a perspective view of a cold air generator and a hot air generator according to the present invention;
FIG. 5 is a perspective view of the hot air generator of the present invention;
FIG. 6 is a top view of the hot air generator of the present invention;
FIG. 7 is a perspective view of the cold air generator of the present invention;
FIG. 8 is a top view of the cold air generator of the present invention;
FIG. 9 is an oblique view of the experimental box of the present invention;
FIG. 10 is a perspective view of the experimental box of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10 at A;
the reference numbers in the figures are:
1-an experimental box; 1 a-a box body; 1a 1-box body air inlet; 1a 2-box air outlet; 1a 3-standing board; 1 b-a box door; 1b 1-sealing ring;
2-a blower; 2 a-a blower inlet; 2 b-a blower air outlet;
3-an air heater; 3 a-heater air inlet; 3 b-heater air outlet;
4-a hot air tank; 4 a-hot air tank air inlet; 4 b-hot air tank air outlet;
5-a first pressurized air pump;
6-a compressor; 6 a-compressor air inlet; 6 b-compressor air outlet;
7-a cold air tank; 7 a-a cold air tank air inlet; 7 b-cold air tank air outlet;
8-a second pressurized air pump;
9-valve.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In order to solve the technical problem of sudden temperature change of the simulated environment, as shown in fig. 1, 2, 3 and 9, the following technical solutions are provided:
a test device for simulating a temperature shock environment comprises,
a frame;
the experiment box 1 is fixedly arranged on the rack; the experimental box 1 is provided with a box body air inlet 1a1 and a box body air outlet 1a 2;
the experimental apparatus further comprises:
the hot air generator is arranged on the rack and is connected with a box body air inlet 1a1 of the experimental box 1 through a pipeline, the hot air generator comprises an air blower 2, an air heater 3, a hot air tank 4 and a connecting pipeline of the hot air generator, and the hot air generator is used for conveying hot air into the experimental box 1;
the cold air generator is arranged on the rack and is respectively connected with the box body air inlet 1a1 of the experiment box 1 through a pipeline, the cold air generator comprises a compressor 6, a cold air tank 7 and a connecting pipeline of the cold air generator, and the cold air generator is used for conveying cold air into the experiment box 1;
and a plurality of valves 9 are arranged on the connecting pipeline of each component of the valve 9.
Specifically, the valve 9 is an electric control valve, and the valve 9 is in a normally closed state in a non-working state. When the tested object needs to be subjected to the sudden change of the simulated environment temperature, the tested object is placed into the experiment box 1, and a program is debugged to meet the temperature required by the sudden change of the simulated environment temperature. The hot air generator and the cold air generator can respectively carry out preheating and precooling. The preheated gas in the hot air generator will be stored in the hot air tank 4 and the precooled gas in the cold air generator will be stored in the cold air tank 7.
After the cold air generator and the hot air generator reach the specified temperature, the cold air generator and the hot air generator can respectively and alternately introduce cold air and hot air into the experimental box 1, so that the purposes of refrigeration and heating are achieved, and meanwhile, redundant gas in the experimental box 1 is extruded out from the air outlet 1a2 of the box body, so that the cold air and the hot air can normally enter.
Further:
in order to solve the technical problems of the structure and the function of the box body, as shown in fig. 9, 10 and 11, the following technical proposal is provided:
the experimental box 1 is made of heat-insulating materials, the experimental box 1 comprises,
the box body 1a, the box body air inlet 1a1 and the box body air outlet 1a2 are arranged on the side wall of the box body 1a, a plurality of detachable placing plates 1a3 are arranged inside the box body 1a, and the placing plates 1a3 are flat plates with mesh surfaces;
Specifically, the box door 1b is a silica gel sealing ring. The box body air inlet 1a1 and the box body air outlet 1a2 are air inlets and air outlets for inputting and outputting cold and hot air, and the placing plate 1a3 is used for placing the tested object. The placing plate 1a3 with the net structure can ensure good air permeability, can ensure that cold and hot air is filled in the experiment box 1, and ensures that a good experiment effect is achieved. Sealing washer 1b1 has good leakproofness and heat insulating ability, and when not only can guaranteeing the simulation experiment, the inside temperature of experimental box 1 is not influenced by external world, can not cause the damage to experimental box 1 when the elasticity of sealing washer 1b1 self can guarantee switch chamber door 1b moreover. The experimental box 1 is provided with a temperature sensor.
Further:
in order to solve the technical problem of feeding hot air into the experimental box 1, as shown in fig. 4, 5 and 6, the following technical solutions are provided:
the air blower 2 is provided with an air blower air inlet 2a and an air blower air outlet 2b, the air blower air inlet 2a is arranged at the input end of the air blower 2, the air blower air outlet 2b is arranged at the output end of the air blower 2, and the air blower air inlet 2a can be directly communicated with air;
the air heater 3 is provided with a heater air inlet 3a and a heater air outlet 3b, the heater air inlet 3a is arranged at the input end of the air heater 3, the heater air outlet 3b is arranged at the output end of the air heater 3, and the blower air outlet 2b is connected with the heater air inlet 3a through a pipeline;
the hot air tank 4 is a sealed tank body, a hot air tank air inlet 4a and a hot air tank air outlet 4b are formed in the hot air tank 4, the heater air outlet 3b is connected with the hot air tank air inlet 4a through a pipeline, and the hot air tank air outlet 4b is connected with the box body air inlet 1a1 through a pipeline.
Specifically, the air heater 3 is a pipe electric heater. When the temperature needs to be simulated to suddenly rise and hot air flow needs to be input into the experiment box 1, valves 9 between the air blower 2 and the air heater 3, between the air heater 3 and the hot air tank 4 and between the hot air tank 4 and the experiment box 1 are all opened. The air blower 2 works, air is sucked in through an air inlet 2a of the air blower, air is input into the air heater 3 through a pipeline, the air heater 3 heats the air and inputs hot air into the hot air tank 4, and the hot air tank 4 inputs the hot air into the experiment box 1, so that the purpose of conveying the hot air into the experiment box 1 is achieved.
Further:
in order to solve the technical problem of insufficient heating temperature in the experiment, as shown in fig. 4, 5 and 6, the following technical scheme is provided:
the hot air tank air outlet 4b is connected with the blower air inlet 2a through a pipeline.
Specifically, a temperature sensor and a pressure sensor are also provided inside the hot air tank 4. A single operation of the air heater 3 may not heat the air to a specified temperature. Preheating may be performed before the official experiment so that the gas temperature in the hot air tank 4 may reach a designated temperature.
During preheating, valves 9 between the blower 2 and the air heater 3, between the air heater 3 and the hot air tank 4, and between the hot air tank 4 and the experimental box 1 are all opened. The valve 9 between the hot air tank 4 and the experimental box 1 is closed, and the valve 9 between the hot air tank air outlet 4b and the blower air inlet 2a is opened. Air is conveyed by a blower 2 and heated by an air heater 3 and finally injected into a hot air tank 4; because the inside of the hot air tank 4 is filled with the continuous hot air, the hot air firstly entering the hot air tank 4 is extruded to a pipeline between the air outlet 4b of the hot air tank and the air inlet 2a of the blower, and then circulates from the blower 2 to the air heater 3 and the hot air tank 4 until the temperature sensor inside the hot air tank 4 detects that the preheated air reaches the specified temperature, so that the internal circulation of the blower 2, the air heater 3 and the hot air tank 4 is realized, and after the preheated air reaches the specified temperature, the blower 2 and the air heater 3 temporarily stop working until the heating is required to continue to be carried out.
Further:
in order to solve the technical problems that the volume of the hot air tank 4 is small, and more gas cannot be stored, the air pressure in the hot air tank 4 is not high, and the gas cannot be effectively transmitted to the inside of the experimental box 1, as shown in fig. 6, the following technical scheme is provided:
a first pressurization air pump 5 is arranged on a connecting pipeline between the heater air outlet 3b and the hot air tank air inlet 4a, the input end of the first pressurization air pump 5 is connected with the heater air outlet 3b through a pipeline, and the output end of the first pressurization air pump 5 is connected with the hot air tank air inlet 4a through a pipeline.
In particular, the method comprises the following steps of,
when preheating, the valve 9 between the hot air tank outlet 4b and the blower inlet 2a is slightly opened to ensure that the high-pressure air in the hot air tank 4 does not suddenly gush into the blower 2, and the hot air from the air heater 3 to the hot air tank 4 is pressurized by the first pressurization air pump 5 and then injected into the hot air tank 4. In the heating state, the hot air flow flowing out of the air heater 3 is pressurized by the first pressurization air pump 5, and the pressure sensor in the hot air tank 4 detects the pressure, if the pressure is too high, the pressurization air pump 5 stops continuously pressurizing, so that danger is prevented. When hot air tank 4 carried hot air to experimental box 1, the hot air of 5 pressor of first pressurization air pump can gush to experimental box 1 fast, guarantees to realize the experimental effect of temperature shock.
Further:
in order to solve the technical problem of recycling hot air in the experimental box 1 after simulating a thermal environment, as shown in fig. 3 and 5, the following technical solutions are provided:
the air inlet 2a of the blower is connected with the air outlet 1a2 of the box body through a pipeline.
Specifically, when the hot air tank 4 continuously introduces hot air into the experimental box 1 or the cold air generator just starts introducing cold air into the experimental box 1, the experimental box 1 will discharge excess heat air from the box outlet 1a 2. At this time, the valve 9 between the air inlet 2a of the blower and the air outlet 1a2 of the box body is opened, the redundant hot air is blown to the air heater 3 by the blower 2 and then passes through the first pressurization air pump 5 to the hot air tank 4, so that the hot air is recycled, and after the hot air in the experiment box 1 is exhausted, the valve 9 between the air inlet 2a of the blower and the air outlet 1a2 of the box body is closed.
Further:
in order to solve the technical problem of refrigerating the box body, as shown in fig. 3, 7 and 8, the following technical scheme is provided:
the compressor 6 is provided with a compressor air inlet 6a and a compressor air outlet 6b, the compressor air inlet 6a is arranged at the input end of the compressor 6, the compressor air outlet 6b is arranged at the output end of the compressor 6, and the compressor air inlet 6a can be directly communicated with air;
the cold air tank 7 is a sealed tank body, a cold air tank air inlet 7a and a cold air tank air outlet 7b are arranged on the cold air tank 7, the cold air tank air inlet 7a is connected with the compressor air outlet 6b through a pipeline, and the cold air tank air outlet 7b is connected with the tank body 1a through a pipeline.
Specifically, the inside of the compressor 6 is filled with a refrigerant, the refrigerant can be selected from refrigerants such as freon, and the highest refrigeration function of fifty degrees below zero can be realized through the compressor 6. When the simulation temperature is required to be suddenly lowered and cold air is required to be input into the experimental box 1, the valve 9 between the compressor 6 and the cold air tank 7 and between the cold air tank 7 and the experimental box 1 is opened. The compressor 6 works, air is sucked through the air inlet 6a of the compressor, the air is refrigerated and is transmitted to the cold air tank 7 through a pipeline, the cold air stored in the cold air tank 7 is transmitted to the experiment box 1 through the cold air tank 7, and the purpose of inputting the cold air into the experiment box 1 is achieved.
Further:
in order to solve the technical problem of insufficient refrigeration temperature in the experiment, as shown in fig. 7 and 8, the following technical solutions are provided:
the air outlet 7b of the cold air tank is connected with the air inlet 6a of the compressor through a pipeline.
Specifically, the inside of the cold air tank 7 is also provided with a temperature sensor and a pressure sensor, and the compressor 6 may not be able to cool the air to a specified temperature by a single operation. Pre-cooling is performed before the experiment is started so that the temperature of the air in the cold air tank 7 can reach a designated temperature.
During precooling, pipeline valves between the air outlet 6b of the compressor and the air inlet 7a of the cold air tank, and pipeline valves between the air outlet 7b of the cold air tank and the air inlet 6a of the compressor are all opened, and pipeline valves between the air inlet 7a of the cold air tank 7 and the experimental box 1 are closed, so that air is refrigerated by the compressor 6, is transmitted to the cold air tank 7 from a pipeline at the air outlet 6b of the compressor and the air inlet 7a of the cold air tank, and is continuously introduced into the cold air tank 7, and cold air firstly entering the cold air tank 7 is squeezed to a pipeline between the air outlet 7b of the cold air tank and the air inlet 6a of the compressor and is refrigerated again by the compressor 6, thereby realizing internal circulation of the compressor 6 and the cold air tank 7 during refrigeration. And stopping the compressor 6 until the temperature sensor in the cold air tank 7 detects that the precooling temperature reaches the specified temperature, finishing precooling, and enabling the compressor 6 to work again when needed.
Further:
in order to solve the technical problems that the cold air tank 7 is small in size and cannot store more gas, the internal air pressure of the hot air tank 4 is not high, and gas cannot be effectively transmitted to the inside of the experimental box 1, as shown in fig. 8, the following technical scheme is provided:
a second pressurization air pump 8 is arranged on a connecting pipeline between the compressor air outlet 6b and the cold air tank air inlet 7a, the input end of the second pressurization air pump 8 is connected with the compressor air outlet 6b through a pipeline, and the output end of the second pressurization air pump 8 is connected with the cold air tank air inlet 7a through a pipeline.
Specifically, when precooling, the valve between the air outlet 7b of the cold air tank and the air inlet 6a of the compressor is slightly opened, so that the high-pressure air in the cold air tank 7 cannot suddenly gush to the compressor 6, when the cold air generator works, the cold air flowing out of the compressor 6 can be pressurized by the second pressurization air pump 8 and then flows into the cold air tank 7, meanwhile, the pressure sensor in the cold air tank 7 detects the pressure, and when the pressure is too high, the second pressurization air pump 8 stops pressurizing, so that danger is prevented. When cold air is input into the experiment box 1 from the cold air tank 7, the cold air pressurized by the second pressurization air pump 8 can be rapidly sprayed into the experiment box 1, and the experimental effect of abrupt temperature change can be realized.
Further:
in order to solve the technical problem of recycling cold air in the experimental box 1 after simulating a cold environment, as shown in fig. 3, 7 and 8, the following technical solutions are provided:
the compressor air inlet 6a is connected with the box air outlet 1a2 through a pipeline.
Specifically, when the cold air tank 7 continuously feeds cold air into the experimental box 1 or the hot air generator just starts to feed hot air into the experimental box 1, the experimental box 1 will discharge excessive cold air from the box outlet 1a 2. At this time, the valve 9 between the compressor air inlet 6a and the box air outlet 1a2 is opened, the redundant cold air enters the compressor 6 again and passes through the second pressurization air pump 8 and the valve 9 again, so that the cold air is recycled, the cold air in the experimental box 1 is exhausted, and the valve 9 between the compressor air inlet 6a and the box air outlet 1a2 is closed again.
The device is also provided with a control panel which is not shown in the attached drawings and is connected with a controller, and the controller is used for controlling the operation of the blower 2, the air heater 3, the first pressurizing air pump 5, the compressor 6, the second pressurizing air pump 8 and the valve 9 to be carried out and stopped. The control panel is used for setting temperature and a temperature shock cycle so as to meet different experimental requirements.
The working principle of the invention is as follows:
step one, placing an experimental product: the door 1b is opened, the test pieces are placed on the placing plate 1a3 of the case 1a, and then the door 1b is closed.
Step two, precooling and preheating: the setting program sets the designated temperature and the sudden change period. The cold air generator and the hot air generator respectively carry out precooling and preheating work.
Pre-cooling by a cold air generator: the compressor 6 cools and delivers air to the cold air tank 7, and the air is pressurized by the second pressurization air pump 8 during delivery to the cold air tank 7. The air in the cold air tank 7 is conveyed to the compressor 6 again through the pipeline and is cooled by the compressor 6 again until the temperature sensor in the cold air tank 7 detects that the air temperature reaches the specified temperature, and the compressor 6 and the cold air tank 7 stop cooling continuously.
Preheating a hot air generator: the blower 2 delivers air to the air heater 3, the air passes through the air heater 3 and flows into the hot air tank 4, the air is heated in the air heater 3 and pressurized by the first pressurizing air pump 5 before entering the hot air tank 4. The air in the hot air tank 4 is circulated from the air blower 2 to the air heater 3 and from the air heater 3 to the hot air tank 4 by being transferred again to the air blower 2, until the temperature sensor in the hot air tank 4 detects that the temperature reaches a specified temperature, and the air blower 2, the air heater 3 and the hot air tank 4 stop heating.
Step three, starting an experiment: after precooling and preheating, cold air and hot air are alternately input into the experiment box 1 by the cold air generator and the hot air generator according to a set program, so that the aim of simulating the environment with sudden temperature change is fulfilled. Meanwhile, the controller can select how much cold and hot air is input according to the temperature sensor in the experimental box 1, the input of the cold and hot air is stopped temporarily after the temperature reaches the standard, and the cold and hot air is introduced when the temperature suddenly changes or does not meet the standard, so that the aim of saving energy is fulfilled.
When the hot air generator stops inputting hot air into the experiment box 1, the hot air generator can continue to preheat at the moment so as to ensure that enough hot air in the hot air tank 4 meets the next temperature shock; when the cold air generator suspends inputting cold air into the experimental box 1, the cold air generator can continue to pre-cool at the moment so as to ensure that enough cold air in the cold air tank 7 meets the next temperature shock.
When cold and hot air is alternately or continuously introduced, the corresponding cold and hot air can return to the cold air generator and the hot air generator again and enter the circulation again.
Step four, finishing the experiment and taking out a sample: after the experiment is finished, the cold air generator stops working, the air heater 3 and the first pressurizing air pump 5 in the hot air generator stop working, valves of the hot air generator are all opened, and the air blower 2 continues to blow in air, so that the purposes of heat dissipation of the air heater 3 and balance of the internal temperature of the experiment box 1 are achieved. Until the temperature of the experimental box 1 returns to the room temperature, the box door 1b is opened, and the experimental object in the experimental box 1 is taken out by covering a protective glove or using other clamps.
In the invention, the situation that one interface is connected with a plurality of interfaces occurs, a tee joint or other connecting pieces with the same function can be selected to be connected, and a plurality of interfaces with the same function can be arranged, particularly according to the actual production situation.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A test device for simulating a temperature shock environment comprises,
a frame;
the experiment box (1), the experiment box (1) is fixedly arranged on the frame; the experiment box (1) is provided with a box body air inlet (1a1) and a box body air outlet (1a 2);
it is characterized in that the experimental device further comprises:
the hot air generator is arranged on the rack and is connected with a box body air inlet (1a1) of the experimental box (1) through a pipeline, and the hot air generator comprises a blower (2), an air heater (3), a hot air tank (4) and a connecting pipeline of the hot air generator;
the cold air generator is arranged on the rack and is respectively connected with a box body air inlet (1a1) of the experiment box (1) through a pipeline, and the cold air generator comprises a compressor (6), a cold air tank (7) and a connecting pipeline of the cold air generator;
and the connecting pipeline of each component is provided with a plurality of valves (9).
2. A test unit for simulating a temperature shock environment according to claim 1, wherein the test box (1) is made of a heat insulating material, the test box (1) comprises,
the air inlet (1a1) and the air outlet (1a2) of the box body are formed in the side wall of the box body (1a), and a plurality of detachable placing plates (1a3) are mounted inside the box body (1 a);
chamber door (1b), chamber door (1b) articulate on box (1a), are provided with a plurality of layers of sealing washer (1b1) on chamber door (1b), when chamber door (1b) is laminated to box (1a), and sealing washer (1b1) presss from both sides in the middle of box (1a) and chamber door (1 b).
3. The apparatus for simulating a temperature shock environment according to claim 1,
the air blower (2) is provided with an air blower air inlet (2a) and an air blower air outlet (2b), the air blower air inlet (2a) is arranged at the input end of the air blower (2), the air blower air outlet (2b) is arranged at the output end of the air blower (2), and the air blower air inlet (2a) is directly communicated with air;
the air heater (3) is provided with a heater air inlet (3a) and a heater air outlet (3b), the heater air inlet (3a) is arranged at the input end of the air heater (3), the heater air outlet (3b) is arranged at the output end of the air heater (3), and the blower air outlet (2b) is connected with the heater air inlet (3a) through a pipeline;
the hot air tank (4) is a sealed tank body, a hot air tank air inlet (4a) and a hot air tank air outlet (4b) are formed in the hot air tank (4), the heater air outlet (3b) is connected with the hot air tank air inlet (4a) through a pipeline, and the hot air tank air outlet (4b) is connected with the box body air inlet (1a1) through a pipeline.
4. A test unit for simulating a temperature shock environment according to claim 3, characterised in that the hot air tank outlet (4b) is connected to the blower inlet (2a) by means of a pipe.
5. The test device for simulating the temperature shock environment according to claim 3, wherein a first pressurization air pump (5) is arranged on a connecting pipeline between the heater air outlet (3b) and the hot air tank air inlet (4a), an input end of the first pressurization air pump (5) is connected with the heater air outlet (3b) through a pipeline, and an output end of the first pressurization air pump (5) is connected with the hot air tank air inlet (4a) through a pipeline.
6. The test device for simulating the temperature shock environment according to claim 3, wherein the blower inlet (2a) is connected with the box outlet (1a2) through a pipeline.
7. The apparatus for simulating a temperature shock environment according to claim 1,
the compressor (6) is provided with a compressor air inlet (6a) and a compressor air outlet (6b), the compressor air inlet (6a) is arranged at the input end of the compressor (6), the compressor air outlet (6b) is arranged at the output end of the compressor (6), and the compressor air inlet (6a) is directly communicated with air;
the cold air tank (7) is a sealed tank body, a cold air tank air inlet (7a) and a cold air tank air outlet (7b) are arranged on the cold air tank (7), the cold air tank air inlet (7a) is connected with the compressor air outlet (6b) through a pipeline, and the cold air tank air outlet (7b) is connected with the tank body (1a) through a pipeline.
8. The test device for simulating the temperature shock environment according to claim 7, wherein the air outlet (7b) of the cold air tank is connected with the air inlet (6a) of the compressor through a pipeline.
9. The test device for simulating the temperature shock environment according to claim 7, wherein a second pressurization air pump (8) is arranged on a connecting pipeline between the compressor air outlet (6b) and the cold air tank air inlet (7a), an input end of the second pressurization air pump (8) is connected with the compressor air outlet (6b) through a pipeline, and an output end of the second pressurization air pump (8) is connected with the cold air tank air inlet (7a) through a pipeline.
10. The test device for simulating the temperature shock environment according to claim 7, wherein the compressor air inlet (6a) is connected with the box air outlet (1a2) through a pipeline.
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| CN114062182A (en) * | 2021-11-23 | 2022-02-18 | 德州晶华药用玻璃有限公司 | Cold and hot resistant detection device of well borosilicate glass |
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Application publication date: 20210727 |