CN203131989U - Low-temperature environment controlling device used for model test - Google Patents
Low-temperature environment controlling device used for model test Download PDFInfo
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- CN203131989U CN203131989U CN 201320068223 CN201320068223U CN203131989U CN 203131989 U CN203131989 U CN 203131989U CN 201320068223 CN201320068223 CN 201320068223 CN 201320068223 U CN201320068223 U CN 201320068223U CN 203131989 U CN203131989 U CN 203131989U
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Abstract
Provided is a low-temperature environment controlling device used for a model test. According to the low-temperature environment controlling device used for the model test, a thermal insulation cover covers a test model, a cool air outlet of an internal unit of an air conditioner is tightly attached to a cool air inlet on one side of the thermal insulation cover, a return air cover covers the internal unit of the air conditioner, a return air outlet of the return air cover is connected with a return air inlet on the thermal insulation cover through a return air pipe, and a circuit control board of an external unit of the air conditioner is composed of an intelligent temperature controller and an alternating current contactor. The circuit control board is characterized in that a control signal output end of the intelligent temperature controller is connected with a coil connection terminal of the alternating current contactor, a main contact input end of the alternating current contactor is connected with a mians supply, a main contact output end of the alternating current contactor is connected with a cooling circuit of the external unit of the air conditioner, a control signal input end of the intelligent temperature controller is connected with a temperature sensor, and the temperature sensor is installed in the thermal insulation cover. The low-temperature environment controlling device used for the model test is low in cost, easy to assemble, convenient to use, good in controllability and wide in application range.
Description
Technical field
The utility model relates to a kind of low temperature environment control device for model test, belongs to the model test technical field.
Background technology
When being studied, engineering structure often adopts the method for model test.Low temperature environment influences highly significant to engineering structure, as frozen earth roadbed thaw collapse frost-heaving deformation of the expanding with heat and contract with cold of engineering material, asphalt concrete pavement cracking, railway and the highway when the low temperature etc.Therefore, be the every performance of research engineering structure under low temperature environment, usually test model will be placed and carry out model test under the different low temperature environments.
Current, the model test under the low temperature environment is carried out in the professional cold-test chamber that is equipped with refrigeration plants such as compressor bank, evaporimeter, condenser, flow controller and blower fan mostly, exists to involve great expense, take up an area of deficiencies such as the space is big, the preparatory period is long.Also can adopt semiconductor refrigerating during the structure low temperature environment, but this mode has the low inherent shortcoming of refrigeration work consumption, is only applicable to miniature model.In addition, adopt the reduction of the mode implementation model environment temperature of dry ice and liquid nitrogen refrigerating, have certain danger, and control not easy to operate and quantitative.
The utility model content
The purpose of this utility model provides a kind of low temperature environment control device for model test, and this installation cost is low, assembling is simple, easy to use, controllability is good, applicability is wide.
The utility model for realizing the technical scheme that its purpose adopts is: a kind of low temperature environment control device for model test is characterized in that:
Stay-warm case covers test model, and the cold air outlet of air-conditioning internal machine is close to the cold air porch of stay-warm case one side; Return air cover of air-conditioning internal machine outer cover, the outlet of return air on the return air cover links to each other with return air entrance on the stay-warm case by backwind tube;
The circuit control panel of outdoor machine of air-conditioner is made of intelligent temperature controller and A.C. contactor, its concrete formation is: the control signal output of intelligent temperature controller links to each other with the winding wiring terminal of A.C. contactor, and the main contacts input of A.C. contactor links to each other with mains supply; The main contacts output of A.C. contactor links to each other with the refrigeration circuit of outdoor machine of air-conditioner; The control signal input of intelligent temperature controller links to each other with temperature sensor; Temperature sensor is installed in the stay-warm case.
The course of work of the present utility model and principle are:
Intelligent temperature controller is transferred to refrigeration mode, design temperature lower limit and temperature upper limit.When the temperature value that feeds back to intelligent temperature controller when the temperature sensor in the stay-warm case is higher than temperature upper limit, intelligent temperature controller control A.C. contactor closure, the outdoor machine of air-conditioner refrigeration circuit is connected, and begins refrigeration.The cold air that air-conditioning internal machine produces enters in the stay-warm case by the cold air entrance of stay-warm case; Simultaneously, cold air is by return air entrance, backwind tube, return air outlet and return air cover in the stay-warm case, and refluxing from the air intake of air-conditioning internal machine enters air-conditioning internal machine, forms the peripheral passage of cooling air, avoided entering of hot outside, the interior air themperature of stay-warm case is reduced rapidly; Intelligent temperature controller was then controlled outdoor machine of air-conditioner and is shut down when the temperature of measuring when temperature sensor was lower than the lower limit of setting.So move in circles, air themperature remains in the range of set temperature in the stay-warm case.Then the test model in the stay-warm case is carried out corresponding test operation and data observation record, can finish the model test under the cryogenic conditions of design temperature.
Compared with prior art, the beneficial effects of the utility model are:
1, the control circuit board of existing outdoor machine of air-conditioner itself is removed changes the new control circuit board of being formed by intelligent temperature controller and A.C. contactor into, can realize being lower than 15 ℃ of refrigeration of zubzero temperature even.And assembling is transformed simple, easy to use, than large-scale professional Cryo Equipment, has realized the control of low temperature environment in mode cheaply.
2, by stay-warm case, backwind tube and return air cover cooling air is circulated within the local little space around the test model, avoided entering of hot outside, cold insulation is effective, the refrigerating efficiency height, and the refrigeration power consumption is little.
3, this device running refrigerating function is used electric energy, has advantages such as controllability is good, safety, environmental protection with respect to the mode of dry ice and liquid nitrogen refrigerating.
Above-mentioned backwind tube is more than two; Backwind tube is made by insulation material.
Like this, accelerated circulation rate and the scope of cold air, improved refrigerating efficiency, it is more even to freeze, and the test model uniformity of temperature everywhere is better.
Above-mentioned stay-warm case is closed box or bottomless box, and during for bottomless box, its sidewall bottom is provided with the insulation rubber cushion.
Like this, the utility model both had been applicable to the test model that can independently move, also applicable to being fixed in immovable test model on the ground.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the circuit theory schematic diagram of the utility model embodiment 1.
The specific embodiment
Fig. 1,2 illustrates, and a kind of specific embodiment of the present utility model is, a kind of low temperature environment control device for model test, and its composition is:
Stay-warm case 8 covers test model 0, and the cold air outlet of air-conditioning internal machine 4 is close to the cold air entrance 8a place of stay-warm case 8 one sides; Return air cover 6 of air-conditioning internal machine 4 outer covers, return air on the return air cover 6 outlet 6a links to each other with return air entrance 8b on the stay-warm case 8 by backwind tube 7;
The circuit control panel of outdoor machine of air-conditioner 5 is made of intelligent temperature controller 2 and A.C. contactor 3, its concrete formation is: the control signal output of intelligent temperature controller 2 links to each other with the winding wiring terminal of A.C. contactor 3, and the main contacts input of A.C. contactor 3 links to each other with mains supply; The main contacts output of A.C. contactor 3 links to each other with the refrigeration circuit 5a of outdoor machine of air-conditioner 5; The control signal input of intelligent temperature controller 2 links to each other with temperature sensor 1; Temperature sensor 1 is installed in the stay-warm case 8.
This routine backwind tube 7 is four, and backwind tube 7 is made by insulation material.
This routine stay-warm case 8 is bottomless box, and the sidewall bottom of bottomless box is provided with insulation rubber cushion 8c.
The formation of the formation of this example and embodiment 1 is basic identical, and different only is: this routine backwind tube 7 is two; Stay-warm case 8 is closed box.
Claims (3)
1. low temperature environment control device that is used for model test is characterized in that:
Stay-warm case (8) covers test model (0), and the cold air outlet of air-conditioning internal machine (4) is close to the cold air entrance (8a) of stay-warm case (8) one sides and locates; Air-conditioning internal machine (a 4) return air cover of outer cover (6), return air on the return air cover (6) outlet (6a) links to each other with return air entrance (8b) on the stay-warm case (8) by backwind tube (7);
The circuit control panel of outdoor machine of air-conditioner (5) is made of intelligent temperature controller (2) and A.C. contactor (3), its concrete formation is: the control signal output of intelligent temperature controller (2) links to each other with the winding wiring terminal of A.C. contactor (3), and the main contacts input of A.C. contactor (3) links to each other with mains supply; The main contacts output of A.C. contactor (3) links to each other with the refrigeration circuit (5a) of outdoor machine of air-conditioner (5); The control signal input of intelligent temperature controller (2) links to each other with temperature sensor (1); Temperature sensor (1) is installed in the stay-warm case (8).
2. a kind of low temperature environment control device for model test according to claim 1, it is characterized in that: described backwind tube (7) is more than two; Backwind tube (7) is made by insulation material.
3. a kind of low temperature environment control device for model test according to claim 1, it is characterized in that: described stay-warm case (8) is closed box or bottomless box; The sidewall bottom of bottomless box is provided with insulation rubber cushion (8c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068223 CN203131989U (en) | 2013-02-06 | 2013-02-06 | Low-temperature environment controlling device used for model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068223 CN203131989U (en) | 2013-02-06 | 2013-02-06 | Low-temperature environment controlling device used for model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131989U true CN203131989U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068223 Expired - Fee Related CN203131989U (en) | 2013-02-06 | 2013-02-06 | Low-temperature environment controlling device used for model test |
Country Status (1)
| Country | Link |
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| CN (1) | CN203131989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109548362A (en) * | 2018-10-19 | 2019-03-29 | 安徽信息工程学院 | A kind of electronic equipment cooling device |
-
2013
- 2013-02-06 CN CN 201320068223 patent/CN203131989U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109548362A (en) * | 2018-10-19 | 2019-03-29 | 安徽信息工程学院 | A kind of electronic equipment cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160206 |