Device for controlling temperature of environment test medium

Abstract

The utility model belongs to the technical field of environmental tests, and particularly provides a device for controlling the temperature of an environmental test medium, which comprises an environmental temperature box. A medium box, a first temperature sensor, a liquid level meter, a filter, a test sample, a pressure sensor, a second temperature sensor, a regulating valve, a flow meter, a heat exchanger, an overflow valve and a heat exchange fan are arranged inside the environment temperature box, and a circulating pump is arranged outside the environment temperature box; the medium box provides a liquid medium for a test sample; the pressure sensor detects the pressure of the liquid medium at the test sample outlet; the regulating valve regulates the pressure of the liquid medium at the test sample outlet; the flow meter detects the flow of the liquid medium at the test sample outlet; the circulating pump conveys a liquid medium in the medium box into the heat exchanger and exchanges heat with the environment temperature box through the heat exchange fan; and the overflow valve guides the redundant liquid medium at the outlet of the circulating pump back into the medium box. The device has the advantages of being controllable in medium temperature, low in cost and low in energy consumption.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental test technology, more particularly to a device for environmental test medium temperature control. BACKGROUND

[0002] The existing device has the following two modes to meet the load test requirement in the environmental test process:

[0003] 1. Put the sample and the medium box into the environmental test box together, set the environmental temperature box as the target temperature, and slowly drive the liquid medium temperature. The main problem of this mode is that the liquid medium temperature changing rate is very slow, and the medium temperature deviates greatly from the environmental temperature after thermal equilibrium, and the test condition deviates greatly from the standard requirement;

[0004] 2. Put the sample into the environmental box, and control the medium temperature by the external mold temperature machine. The main problem of this mode is that the cost of the external mold temperature machine is very high, and the mold temperature machine device power and the land occupation area are large, which greatly occupies the public system resources of the test room. SUMMARY

[0005] In order to solve the problems in the prior art, the utility model provides a device for environmental test medium temperature control, which has the advantages of controllable medium temperature, low cost and low energy consumption.

[0006] As a first aspect of the utility model, a device for environmental test medium temperature control is provided, comprising an environmental temperature box, a medium box, a first temperature sensor, a liquid level meter, a filter, a test sample, a pressure sensor, a second temperature sensor, a regulating valve, a flow meter, a heat exchanger, an overflow valve and a heat exchange fan are arranged in the environmental temperature box, and a circulating pump is arranged outside the environmental temperature box; wherein,

[0007] The medium box is connected with the inlet of the test sample through a pipeline, and provides liquid medium for the test sample;

[0008] The outlet of the test sample is connected with one end of the regulating valve through a pipeline, the other end of the regulating valve is connected with one end of the flow meter through a pipeline, and the other end of the flow meter is communicated with the inside of the medium box through a pipeline, so that the liquid medium in the test sample is introduced back to the medium box;

[0009] The filter is located at the inlet of the test sample, and is used for filtering the impurities in the liquid medium at the inlet of the test sample;

[0010] The pressure sensor is located at the outlet of the test sample, and is used for detecting the pressure of the liquid medium at the outlet of the test sample;

[0011] The second temperature sensor is located at the outlet of the test sample for detecting the temperature of the liquid medium at the outlet of the test sample;

[0012] The adjusting valve is used for adjusting the pressure of the liquid medium at the outlet of the test sample;

[0013] The flow meter is used for detecting the flow of the liquid medium at the outlet of the test sample;

[0014] The first temperature sensor and the liquid level meter are used for detecting the temperature and the liquid level of the liquid medium in the medium tank, respectively;

[0015] The inlet of the circulating pump is communicated with the inside of the medium tank through a pipeline, the outlet of the circulating pump is connected with one end of the overflow valve and one end of the heat exchanger through pipelines, the other end of the overflow valve is communicated with the inside of the medium tank through a pipeline, the other end of the heat exchanger is communicated with the inside of the medium tank through a pipeline, and the heat exchange fan is located on one side of the heat exchanger;

[0016] The circulating pump is used for conveying the liquid medium in the medium tank into the heat exchanger, and performing heat exchange with the environmental temperature tank through the heat exchange fan;

[0017] The overflow valve is used for leading the excess liquid medium at the outlet of the circulating pump back into the medium tank.

[0018] Further, a waterproof air permeable valve is arranged at the upper portion of the medium tank, which can ensure that the air pressure in the medium tank is the same as the air pressure in the environmental temperature tank when the temperature changes.

[0019] Further, a liquid discharge valve is arranged at the bottom of the medium tank, which is used for discharging the liquid medium in the medium tank.

[0020] Further, the adjusting valve is connected with a servo motor through an extension rod, the acting force of the servo motor is transmitted to the adjusting valve through the extension rod, so as to adjust the opening degree of the valve rod in the adjusting valve.

[0021] The device for controlling the temperature of the medium used in the environmental test has the following advantages: (1) the temperature of the medium is controllable, and the temperature change and control according to the standard requirements can be met; (2) the cost is much lower than that of using a mold temperature controller to control the temperature of the medium; and (3) the energy consumption is lower than that of using a mold temperature controller to control the temperature of the medium. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application.

[0023] Figure 1 This is a structural diagram of the device for controlling the temperature of environmental test media provided by the utility model.

[0024] In the figure: 1-environmental temperature box, 2-medium box, 3-waterproof breathable valve, 4-first temperature sensor, 5-liquid level gauge, 6-drain valve, 7-filter, 8-test sample, 9-pressure sensor, 10-second temperature sensor, 11-regulating valve, 12-extension rod, 13-servo motor, 14-flow meter, 15-heat exchanger, 16-circulation pump, 17-overflow valve, 18-heat exchange fan. DETAILED DESCRIPTION

[0025] To further illustrate the technical means and effectiveness of the present invention in achieving its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation, structure, features, and effectiveness of the device for controlling the temperature of an environmental test medium according to the present invention. It should be understood that the described embodiments are only a subset of the embodiments of the present invention, and are not exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0027] In this embodiment, a device for controlling the temperature of an environmental test medium is provided. Figure 1 As shown, the device for controlling the temperature of an environmental test medium includes an environmental temperature box 1, wherein the interior of the environmental temperature box 1 is provided with a medium box 2, a first temperature sensor 4, a liquid level meter 5, a filter 7, a test sample 8, a pressure sensor 9, a second temperature sensor 10, a regulating valve 11, a flow meter 14, a heat exchanger 15, a relief valve 17 and a heat exchange fan 18, and the exterior of the environmental temperature box 1 is provided with a circulating pump 16; wherein,

[0028] The medium box 2 is connected to the inlet of the test sample 8 through a pipeline to provide liquid medium for the test sample 8;

[0029] The outlet of the test sample 8 is connected by pipeline to one end of the regulating valve 11, the other end of the regulating valve 11 is connected by pipeline to one end of the flow meter 14, the other end of the flow meter 14 is connected by pipeline to the inside of the medium tank 2, and the liquid medium in the test sample 8 is led back to the inside of the medium tank 2;

[0030] The filter 7 is located at the inlet of the test sample 8, and is used to filter impurities in the liquid medium at the inlet of the test sample 8;

[0031] The pressure sensor 9 is located at the outlet of the test sample 8, and is used to detect the pressure of the liquid medium at the outlet of the test sample 8;

[0032] The second temperature sensor 10 is located at the outlet of the test sample 8, and is used to detect the temperature of the liquid medium at the outlet of the test sample 8;

[0033] The regulating valve 11 is used to regulate the pressure of the liquid medium at the outlet of the test sample 8;

[0034] The flow meter 14 is used to detect the flow of the liquid medium at the outlet of the test sample 8;

[0035] The first temperature sensor 4 and the liquid level meter 5 are used to detect the temperature and the liquid level of the liquid medium in the medium tank 2, respectively;

[0036] The inlet of the circulating pump 16 is connected by pipeline to the inside of the medium tank 2, the outlet of the circulating pump 16 is connected by pipeline to one end of the overflow valve 17 and one end of the heat exchanger 15, respectively, the other end of the overflow valve 17 is connected by pipeline to the inside of the medium tank 2, the other end of the heat exchanger 15 is connected by pipeline to the inside of the medium tank 2, and the heat exchange fan 18 is located on one side of the heat exchanger 15;

[0037] The circulating pump 16 is used to deliver the liquid medium in the medium tank 2 to the heat exchanger 15, and perform heat exchange with the environmental temperature tank 1 through the heat exchange fan 18;

[0038] The overflow valve 17 is used to lead the excess liquid medium at the outlet of the circulating pump 16 back to the inside of the medium tank 2, so as to prevent overpressure at the outlet of the circulating pump 16.

[0039] Preferably, a waterproof air valve 3 is arranged at the upper part of the medium tank 2, which can ensure that the air pressure in the medium tank 2 is the same as the air pressure in the environmental temperature tank 1 when the temperature changes.

[0040] Preferably, the bottom of the medium tank 2 is provided with a liquid discharge valve 6 for discharging the liquid medium in the medium tank 2.

[0041] Preferably, the adjusting valve 11 is connected with a servo motor 13 through an extension rod 12, and the force of the servo motor 13 is transmitted to the adjusting valve 11 through the extension rod 12 to adjust the opening of the valve rod in the adjusting valve 11.

[0042] The working principle of the device for controlling the temperature of the medium for environmental test provided by the utility model is as follows: the environmental temperature box 1 provides the environmental temperature and humidity conditions required by the test standard for the test sample 8, the medium tank 2 provides the test liquid medium for the test sample 8, the circulating pump 16 can pump the liquid medium in the medium tank 2 into the heat exchanger 15, and heat exchange with the environmental temperature box 1 through the heat exchange fan 18, and the flow of the circulating pump 16 is controlled according to the difference between the temperature of the liquid medium detected by the first temperature sensor 4 and the temperature in the environmental temperature box 1, so as to close-loop control the temperature of the liquid medium in the medium tank 2 in the test process.

[0043] The device for controlling the temperature of the medium for environmental test provided by the utility model has the following advantages: (1) the temperature of the medium is controllable, and the temperature change and control according to the standard requirements can be met; (2) the cost is much lower than that of using a mold temperature controller to control the temperature of the medium; (3) the energy consumption is lower than that of using a mold temperature controller to control the temperature of the medium.

[0044] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any skilled person in the art can make some changes or modifications to the above disclosed technical content to make equivalent embodiments, as long as the changes or modifications do not deviate from the technical scheme of the utility model, and the technical essence of the utility model is used to make any simple modification, equivalent change and modification of the above embodiments, which still belongs to the scope of the technical scheme of the utility model.

Claims

1. A device for temperature control of environmental test media, characterized in that, The utility model provides an environmental temperature box, which comprises a medium tank (2), a first temperature sensor (4), a liquid level meter (5), a filter (7), a test sample (8), a pressure sensor (9), a second temperature sensor (10), a regulating valve (11), a flowmeter (14), a heat exchanger (15), an overflow valve (17) and a heat exchange fan (18) arranged in the interior of the environmental temperature box (1), and a circulating pump (16) arranged on the exterior of the environmental temperature box (1), wherein The medium tank (2) is connected to the inlet of the test sample (8) through a pipeline to provide liquid medium for the test sample (8); The outlet of the test sample (8) is connected to one end of the regulating valve (11) through a pipeline, the other end of the regulating valve (11) is connected to one end of the flowmeter (14) through a pipeline, and the other end of the flowmeter (14) is connected to the interior of the medium tank (2) through a pipeline to guide the liquid medium in the test sample (8) back to the medium tank (2); The filter (7) is arranged at the inlet of the test sample (8) to filter impurities in the liquid medium at the inlet of the test sample (8); The pressure sensor (9) is arranged at the outlet of the test sample (8) to detect the pressure of the liquid medium at the outlet of the test sample (8); The second temperature sensor (10) is arranged at the outlet of the test sample (8) to detect the temperature of the liquid medium at the outlet of the test sample (8); The regulating valve (11) is used for adjusting the pressure of the liquid medium at the outlet of the test sample (8); The flowmeter (14) is used for detecting the flow of the liquid medium at the outlet of the test sample (8); The first temperature sensor (4) and the liquid level meter (5) are used for detecting the temperature and the liquid level of the liquid medium in the medium tank (2), respectively; The inlet of the circulating pump (16) is connected to the interior of the medium tank (2) through a pipeline, the outlet of the circulating pump (16) is connected to one end of the overflow valve (17) and one end of the heat exchanger (15) through a pipeline, the other end of the overflow valve (17) is connected to the interior of the medium tank (2) through a pipeline, the other end of the heat exchanger (15) is connected to the interior of the medium tank (2) through a pipeline, and the heat exchange fan (18) is arranged on one side of the heat exchanger (15); The circulating pump (16) is used for conveying the liquid medium in the medium tank (2) to the heat exchanger (15) and performing heat exchange with the environmental temperature box (1) through the heat exchange fan (18); The overflow valve (17) is used for guiding the excess liquid medium at the outlet of the circulating pump (16) back to the medium tank (2).

2. A device for temperature control of environmental test media according to claim 1, characterized in that A waterproof air permeable valve (3) is arranged on the upper portion of the medium tank (2), which can ensure that the air pressure in the medium tank (2) is the same as the air pressure in the environmental temperature box (1) when the temperature changes.

3. A device for temperature control of environmental test media according to claim 1, characterized in that A drain valve (6) is arranged on the bottom of the medium tank (2), which is used for draining the liquid medium in the medium tank (2).

4. A device for temperature control of environmental test media according to claim 1, characterized in that The adjusting valve (11) is connected with a servo motor (13) through an extension rod (12), and the force of the servo motor (13) is transmitted to the adjusting valve (11) through the extension rod (12) to adjust the opening of the valve rod in the adjusting valve (11).

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