Explosion-proof high and low temperature test chamber

Abstract

The utility model discloses an explosion-proof high and low temperature test chamber, which comprises a fresh air fan, a stirring fan and a strong exhaust fan, and further comprises a temperature control module used for controlling the temperature in the chamber of the test chamber; the humidity control module is used for controlling the humidity in the cabin; and the sampling module is used for sampling and detecting gas in the cabin. The oil temperature heat exchange mode is adopted, and a heat source is arranged outside the anti-explosion area, so that the temperature can be accurately controlled, the anti-explosion effect can be ensured, and the application of an anti-explosion scene is realized; by adopting a sampling mode of condensing and then analyzing, not only is the real-time monitoring of the state of the gas in the cabin in a high-temperature state realized, but also the safety is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high and low temperature test cabin technology, especially relates to a kind of explosion-proof high and low temperature test cabin. BACKGROUND

[0002] The high and low temperature test cabin in prior art, all adopt heat exchanger direct heating, when hydrogen leakage occurs, meet electricity or pipe material, there is the risk of explosion or adverse chemical reaction, not only influence experimental result, there is also huge security risk.

[0003] Meanwhile, in prior art, since the gas temperature in cabin under high temperature state of high and low temperature test cabin is very high, exceed the working condition range of gas sensor, especially under the requirement of explosion prevention, it cannot be monitored in real time that flammable and explosive gas concentration becomes the main reason that high and low temperature test cabin cannot reach the requirement of explosion prevention. UTILITY MODEL CONTENTS

[0004] According to the utility model embodiment, provide a kind of explosion-proof high and low temperature test cabin, include fresh air fan, stirring fan, strong exhaust fan, still include:

[0005] Temperature control module, temperature control module is used to control the temperature in the cabin of test cabin;

[0006] Humidity control module, humidity control module is used to control the humidity in the cabin;

[0007] Sampling module, sampling module is used to sample detection to the gas in the cabin.

[0008] Further, temperature control module includes:

[0009] Temperature rising assembly, temperature rising assembly is used to heat the cabin;

[0010] Temperature reducing assembly, temperature reducing assembly is used to the cabin temperature reduction.

[0011] Further, temperature rising assembly includes:

[0012] Oil temperature unit, oil temperature unit is set in the cabin outside and is located in non-explosion-proof area, is used to provide high temperature heat transfer oil;

[0013] Heat exchanger, heat exchanger is set in the cabin;

[0014] Oil pipe, oil pipe is used to connect heat exchanger and oil temperature unit, and oil pipe circulates high temperature heat transfer oil into heat exchanger.

[0015] Further, temperature rising assembly also includes: three-way proportional valve and three-way;Three-way proportional valve and three-way are connected, three-way proportional valve is also connected respectively by oil pipe with the oil outlet of oil temperature unit, the input end of heat exchanger, three-way is also connected respectively by oil pipe with the oil return port of oil temperature unit, the output end of heat exchanger.

[0016] Further, the cooling assembly comprises:

[0017] an evaporator, the evaporator being arranged in the cabin;

[0018] a refrigeration unit, the refrigeration unit being arranged outside the cabin and being connected to the evaporator through a pipeline.

[0019] Further, the sampling module comprises:

[0020] an air intake assembly, the air intake assembly being connected to the sampling port of the cabin;

[0021] a detection assembly, the detection assembly being connected to the air intake assembly and being configured to detect the sampled gas of the air intake assembly.

[0022] Further, the air intake assembly comprises:

[0023] a condenser, an input end of the condenser being connected to the sampling port of the cabin;

[0024] a suction pump, the suction pump being connected to an output end of the condenser.

[0025] Further, the air intake assembly further comprises a filter, the filter being connected to the suction pump and the detection assembly respectively.

[0026] Further, the detection assembly comprises:

[0027] a flow meter, the flow meter being connected to the air intake assembly;

[0028] a smoke sensor and a hydrogen concentration sensor, the smoke sensor and the hydrogen concentration sensor being connected in series and being connected to the flow meter.

[0029] Further, the humidity control module is a steam humidification module.

[0030] The explosion-proof high-low temperature test cabin according to the embodiment of the present application adopts the oil temperature heat exchange mode, and places the heat source outside the explosion-proof area, so that the temperature can be precisely controlled, the explosion-proof effect can be ensured, and the application in the explosion-proof scene is realized; the sampling mode of analyzing after condensation is adopted, so that the real-time monitoring of the cabin gas state under the high-temperature state is realized, and the safety is greatly improved.

[0031] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the subject technology. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 Fig. 1 is a schematic view of the principle of the explosion-proof high-low temperature test cabin according to the embodiment of the present application;

[0033] Figure 2 Fig. 2 is a schematic view of the sampling principle of the explosion-proof high-low temperature test cabin according to the embodiment of the present application;

[0034] Figure 3 The heating principle schematic view of the explosion-proof high-low temperature test cabin according to the embodiment of the utility model. DETAILED DESCRIPTION

[0035] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, and the utility model will be further described.

[0036] Firstly, the explosion-proof high-low temperature test cabin according to the embodiment of the utility model will be described. Figures 1-3 The explosion-proof high-low temperature test cabin according to the embodiment of the utility model is used for high-low temperature test in an explosion-proof scene, and has a very wide application scenario.

[0037] As shown in the figure, the explosion-proof high-low temperature test cabin according to the embodiment of the utility model has a fresh air fan 1, a stirring fan 2, and a strong exhaust fan 3, and also has a temperature control module, a humidity control module 5, and a sampling module 6. Figures 1-2 The temperature control module is used for controlling the temperature in the cabin of the test cabin; the humidity control module 5 is used for controlling the humidity in the cabin; and the sampling module 6 is used for sampling and detecting the gas in the cabin.

[0038] Specifically, as shown in the figure, the temperature control module has a temperature increasing assembly and a temperature decreasing assembly. Figure 1 The temperature increasing assembly is used for heating the cabin; and the temperature decreasing assembly is used for decreasing the temperature of the cabin.

[0039] Further, as shown in the figure, the temperature increasing assembly has an oil guide pipe 410, a heat exchanger 411, and an oil temperature unit 412. Figure 1 The heat exchanger 411 is arranged in the cabin, the oil temperature unit 412 is arranged outside the cabin and located in a non-explosion-proof area, is connected with the heat exchanger 411 through the oil guide pipe 410, circulates high-temperature heat-conducting oil into the heat exchanger 411, and controls the temperature in the cabin by controlling the oil temperature in the heat exchanger 411.

[0040] Further, as shown in the figure, the temperature increasing assembly further has a three-way proportional valve 413 and a three-way joint 414. Figure 3 The three-way proportional valve 413 is connected with the three-way joint 414, is further connected with the output oil port of the oil temperature unit 412 and the input end of the heat exchanger 411 through the oil guide pipe 410 respectively, and the three-way joint 414 is further connected with the return oil port of the oil temperature unit 412 and the output end of the heat exchanger 411 through the oil guide pipe 410 respectively.

[0041] Further, as shown in the figure, the temperature increasing assembly further has a three-way proportional valve 413 and a three-way joint 414. Figure 1As shown, the temperature reduction assembly has an evaporator 421 and a refrigeration unit 422. The evaporator 421 is arranged in the cabin, and the refrigeration unit 422 is arranged outside the cabin and connected to the evaporator 421 through a pipeline.

[0042] Specifically, as shown in Figure 2 The sampling module 6 has an air intake assembly and a detection assembly. The air intake assembly is connected to the sampling port of the cabin, and the detection assembly is connected to the air intake assembly and used to detect the sampled gas.

[0043] Further, as shown in Figure 2 The air intake assembly has a condenser 611 and a suction pump 612. The input end of the condenser 611 is connected to the sampling port of the cabin, and the suction pump 612 is connected to the output end of the condenser 611. The condenser 611 is used to ensure that the temperature of the sampled gas meets the working condition requirements of the detection assembly.

[0044] Further, as shown in Figure 2 The air intake assembly further has a filter 613, which is connected to the suction pump 612 and the detection assembly, respectively.

[0045] Further, as shown in Figure 2 The detection assembly has a flow meter 621, a smoke sensor 622, and a hydrogen concentration sensor 623. The flow meter 621 is connected to the air intake assembly, and the smoke sensor 622 and the hydrogen concentration sensor 623 are connected in series and connected to the flow meter 621.

[0046] Specifically, as shown in Figure 1 The humidity control module 5 adopts a steam humidification module.

[0047] In the explosion-proof high-low temperature test cabin of the embodiment, all pipelines are made of seamless welded stainless steel pipelines, which will not cause hydrogen embrittlement reaction and other adverse reactions.

[0048] When working, the oil temperature unit 412 is used to provide constant temperature oil. According to the temperature requirements in the test cabin, the opening of the three-way proportional valve 413 is adjusted by PID control, and the oil quantity supplied to the first pipeline and the second pipeline is adjusted to control the constant temperature, which not only realizes accurate temperature control but also ensures the explosion-proof grade of the high-low temperature test cabin. At the same time, the condenser 611 is used to ensure that the smoke sensor 622 and the hydrogen concentration sensor 623 can monitor the cabin gas state in the high temperature state in real time, greatly improving the safety.

[0049] The above, with reference to Figures 1-3The explosion-proof high-low temperature test cabin according to the embodiment of the utility model is described, adopts the oil temperature heat exchange mode, and places the heat source outside the explosion-proof area, can accurately control the temperature, can guarantee the explosion-proof effect, realizes the application of the explosion-proof scene; the sampling mode of analyzing after condensation is adopted, not only realizes the real-time monitoring of the cabin gas state under the high temperature state, but also greatly improves the safety.

[0050] It should be noted that in the present specification, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive inclusions, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "containing" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0051] Although the content of the utility model has been introduced in detail by the above preferred embodiment, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and alternatives of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the appended claims.

Claims

1. An explosion-proof high-low temperature test chamber, comprising a fresh air fan, a stirring fan and a strong exhaust fan, characterized in that, Also comprising: a temperature control module for controlling the temperature in the cabin of the test chamber; a humidity control module for controlling the humidity in the cabin; a sampling module for sampling and detecting the gas in the cabin; the temperature control module comprises a heating assembly for heating the cabin and a cooling assembly for cooling the cabin; the heating assembly comprises an oil heater, a heat exchanger and an oil pipe; the oil heater is arranged outside the cabin and in a non-explosion-proof area for providing high-temperature heat transfer oil; the heat exchanger is arranged in the cabin; the oil pipe is used to connect the heat exchanger and the oil heater, and the oil pipe circulates high-temperature heat transfer oil into the heat exchanger; the sampling module comprises an air inlet assembly connected to the sampling port of the cabin and a detection assembly connected to the air inlet assembly for detecting the gas sampled by the air inlet assembly; the air inlet assembly comprises a condenser and a suction pump, and the input end of the condenser is connected to the sampling port of the cabin; the suction pump is connected to the output end of the condenser.

2. The explosion-proof high-low temperature test chamber of claim 1, wherein, The heating assembly further comprises a three-way proportional valve and a three-way joint; the three-way proportional valve and the three-way joint are connected; the three-way proportional valve is further connected to the oil outlet of the oil heater and the input end of the heat exchanger through the oil pipe respectively; the three-way joint is further connected to the oil return port of the oil heater and the output end of the heat exchanger through the oil pipe respectively.

3. The explosion-proof high-low temperature test chamber of claim 1, wherein, The cooling assembly comprises: an evaporator arranged in the cabin; a refrigeration unit arranged outside the cabin and connected to the evaporator through a pipeline.

4. The explosion-proof high-low temperature test chamber of claim 1, wherein, The air inlet assembly further comprises a filter connected to the suction pump and the detection assembly respectively.

5. The explosion-proof high-low temperature test chamber as claimed in claim 1 or 4, wherein The detection assembly comprises: a flow meter connected to the air inlet assembly; a smoke sensor and a hydrogen concentration sensor connected in series and connected to the flow meter.

6. The explosion-proof high-low temperature test chamber of claim 1, wherein, The humidity control module is a steam humidification module.

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