CN204128587U - A kind of temperature/humidity verification box by heating liquid and constant temperature - Google Patents
A kind of temperature/humidity verification box by heating liquid and constant temperature Download PDFInfo
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- CN204128587U CN204128587U CN201420436683.0U CN201420436683U CN204128587U CN 204128587 U CN204128587 U CN 204128587U CN 201420436683 U CN201420436683 U CN 201420436683U CN 204128587 U CN204128587 U CN 204128587U
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Abstract
A kind of temperature/humidity verification box by heating liquid and constant temperature, it comprise be positioned at temperature/humidity verification box casing liquid constant temperature device, air channel and work chamber, isothermal liquid in liquid constant temperature device carries out heat interchange through the sheet metal between liquid constant temperature device and air channel and the air in air channel, air channel is the slype be made up of sheet metal and heat-preservation cotton layer, the two ends in air channel connect the two ends connection of work chamber respectively, are also provided with the blower fan for driving gas circulation between work chamber and air channel.Humidifier and dehumidifier is provided with bottom, air channel connectivity part bottom work chamber.The utility model temperature within the scope of 5 DEG C ~ 50 DEG C can reach ± level of 0.01 DEG C and 0.02 DEG C; ± the level of 0.2%RH and 0.3%RH can be reached respectively in the humidity of 40%RH ~ 90%RH; Wind speed is not more than 0.2m/s, and therefore it meets the requirement of JJG205-2005 mechanical type Hygrothermograph vertification regulation especially.
Description
Technical field
The utility model relates to the equipment of a kind of Hygrothermograph, the calibrating of humiture registering instrument or calibration, particularly relates to a kind of temperature/humidity verification box by heating liquid and constant temperature.
Background technology
Hygrothermograph, humiture registering instrument, when examining and determine or calibrate, need to be placed on one together with standard simultaneously and stablize and compare measurement in uniform humiture environment.The effect of humiture useful test case, produces a kind of so stable and uniform humiture field just.This by the mode of the calibrating that compared by test examination instrument and standard or calibration, the stability of humiture field and homogeneity just directly affects the result of calibrating or calibration.Therefore, make great efforts the stability and the homogeneity that improve humiture useful test case, to the uncertainty reducing calibrating or calibration, there is practical significance.
According to JJG205-2005 mechanical type Hygrothermograph vertification regulation to the requirement of humiture useful test case, wind speed in case is not more than 0.2m/s, in the temperature range of 5 DEG C ~ 50 DEG C, temperature stability is not more than ± and 0.2 DEG C, temperature homogeneity is not more than 0.3 DEG C, in the humidity range of 40%RH ~ 90%RH (during temperature 20 DEG C), humidity stability is not more than ± 0.8%RH, and humidity uniformity is not more than 1.0%RH.
At present for the humiture useful test case that Hygrothermograph, humiture registering instrument are examined and determine or calibrated, in the temperature range of 5 DEG C ~ 50 DEG C, the stability of temperature and homogeneity, can reach ± 0.2 DEG C and 0.3 DEG C; The stability of humidity and homogeneity, in the humidity range of 40%RH ~ 90%RH (during temperature 20 DEG C), can reach ± 0.8%RH and 1.0%RH more reluctantly; Wind speed does not then also have to be less than 0.2m/s, and the wind speed of each position of work space is uneven, and difference is very large, and the wind speed of each position is general all at more than 0.5m/s, and maximum reaches more than 2m/s.
No matter be dual-temperature process, dry wet gas current mixing method, or the humiture useful test case that the humidification method such as to dry makes, all adopt the air of blower fan to work space to stir, to obtain the stable of work space humiture field and evenly.The method that this employing blower fan stirs just is difficult to obtain stablizing and evenly, can not obtaining little wind speed of wind speed.
The project organization of the humiture useful test case that current humidification drying method makes as shown in Figure 2, it comprises temperature/humidity verification box casing 1 and is positioned at the heat-insulation layer 2 on temperature/humidity verification box casing 1 madial wall, wind direction adjusting plate 3, blower fan 5, air-duct clapboard 3, heating element 7, air channel 8, refrigerator 9 and humidifier 10 is provided with in temperature/humidity verification box casing 1, wherein blower fan 5 is driven by the fan driving motor 5 be positioned at outside temperature/humidity verification box casing 1, and Fig. 2 also show the principle of work of temperature/humidity verification box; It arranges an air channel 8 at the rear portion of work space, installs heating element 7, refrigerator 9 (doubling as dehumidifier, dehumidification by condensation), humidifier 10 in air channel 8.Air is through the direct heating and cooling of heating element 7, refrigerator 9 in air channel 8, and through humidifier 10 humidification, the blower fan 5 that top, air channel 8 is installed forces air to be circulated to work space, and air is back in air channel 8 again and forms circulation bottom work space.
The major defect of above-mentioned project organization can be summarized as:
(1) heating surface (area) (HS of heating element is less, the heat interchange of air and hot face is insufficient, the air flowed in air channel, has considerable part directly not contact with the hot face of heating element, this has just caused partial air and has been themselves directly heated, and has partial air not to be themselves directly heated; Similar with it, the refrigeration area of refrigerator is also less, can cause identical problem;
(2) to the control of heating element, be that a kind of energising of discontinuous controls, namely heating element is not the thermal source of a temperature stabilization, is heated when this just causes air, time and do not heated;
(3) use blower fan forced-air circulation, based on the flow characteristics of air, just can not obtain stable and uniform wind speed;
(4) due to this principle of work, wind speed directly affects the heat interchange of air, the wind speed that general needs are larger accelerates the heat interchange between air and heating element and between air and air, such could obtain relatively stable and uniform temperature control, therefore just can not use less stirring wind speed, otherwise the stability of humiture and homogeneity do not reach requirement yet.
Humidity in humiture useful test case represents by relative humidity, the definition of relative humidity, is corresponding with the temperature conditions of soft air, and under the condition that in air, contained aqueous vapor is identical, air themperature is different, then the relative humidity of air is different.Research shows, the aerial distribution of aqueous vapor is uniform, relative humidity instability and unevenness mainly due to temperature instability and unevenly to cause.The stability of raising air humidity and homogeneity in fact mainly improve stability and the homogeneity of air themperature.Therefore, improve stability and the homogeneity of humiture useful test case humidity, need to set about from raising air themperature stability and homogeneity.
Poor thermal conductivity and thermal capacity little be the inherent characteristic of air, in contrast, the good and thermal capacity of thermal conductivity is greatly the inherent characteristic of liquid.
Use the humiture useful test case of structure fabrication shown in Fig. 2, namely heating element, refrigerator is used directly to air heat and cooling, stirring by using blower fan makes air flow, the stability of the air themperature obtained like this and homogeneity, in 5 DEG C ~ 50 DEG C temperature ranges, generally can only to reach ± 0.2 DEG C and 0.3 DEG C.
Use heating element, refrigerator directly to heating liquid and cooling, liquid flow is made by stirring, the liquid thermostatic bath designed and produced like this, the stability of the fluid temperature obtained and homogeneity, in 5 DEG C ~ 50 DEG C temperature ranges, be easy to reach ± the level of 0.01 DEG C and 0.02 DEG C, exceed more than several order of magnitude than current humiture useful test case.
Utility model content
The purpose of this utility model is to provide a kind of temperature/humidity verification box by heating liquid and constant temperature, and its temperature and humidity has extraordinary stability and homogeneity, and its wind speed is less than 0.2m/s.
The utility model solves current humiture useful test case and adopts heating element, refrigerator directly to air heat and cooling, good stability and homogeneity question can not be obtained, adopt blower fan directly to stir air and can not obtain little wind speed problem, the technical scheme that the utility model is taked is:
(1) use the liquid of temperature stabilization in liquid thermostatic bath to heat and constant temperature air, solve the heat source that heating element is not a temperature stabilization;
(2) one piece of large-area sheet metal is used to serve as heat exchanger plate, sheet metal face is by the liquid constant temperature in liquid thermostatic bath, faced by another, air carries out heating and constant temperature, and the heating surface (area) (HS solving heating element is less, the insufficient problem of heat interchange of air and hot face;
(3) use a kind of blower fan to drive air circulation, blower fan gas outlet is a circular pipe, produces one air-flow in circular pipe;
(4) work space upper and lower is designed to funnel-form, and the effect of upper funnel shape impels air evenly to spread, and the effect of lower hopper shape impels air evenly to reclaim;
(5) a spherical micropore metal material ball is installed in the circular pipe gas outlet that blower fan connects, and such air will be decelerated and spread to surrounding;
(6) then below spherical micropore metal material ball, install one piece of micropore metal plate of material, such air is decelerated further and flows to work space vertically downward equably, this addresses the problem and obtains little wind speed problem and wind speed uniformity problem;
(7) equipment work space bottom installs one piece of micropore metal plate of material equally, impels air vertical downflow equably like this, is then evenly recycled to by the funnel-shaped structure of work space bottom and regulates in air channel;
(8) air channel adopts and narrows design, about only has 1/10 of current air channel, is conducive to air like this and thermostat metal plate carries out sufficient heat interchange;
(9) with adopt heating element, refrigerator is directly to air heat, cooling and constant temperature, need larger wind speed could obtain the relatively stable of aerial temperature and humidity and even difference, just the opposite, owing to have employed large-area thermostat metal plate to air heat and constant temperature, and air channel employing narrows design, at this moment air slowly flows across air channel, is more conducive to air and thermostat metal plate carries out sufficient heat interchange.Therefore contrary, structure of the present utility model makes little wind speed can obtain better humiture stability and homogeneity.
Concrete structure of the present utility model is, it comprises temperature/humidity verification box casing and is filled in the heat-preservation cotton layer on temperature/humidity verification box box inside wall, it is characterized in that, it also comprises the liquid constant temperature device being positioned at temperature/humidity verification box casing, air channel and work chamber, isothermal liquid in described liquid constant temperature device carries out heat interchange through the sheet metal between liquid constant temperature device and air channel and the air in air channel, described air channel is the slype be made up of sheet metal and heat-preservation cotton layer, the two ends in air channel connect the two ends connection of work chamber respectively, the blower fan for driving gas circulation is also provided with between work chamber and air channel.Be provided with the humidifier for adjustments of gas temperature and humidity and dehumidifier with bottom, air channel connectivity part bottom described work chamber.
The periphery of described blower fan is heat-preservation cotton layer, which ensure that the heat from air channel gas does not lose, and ensures the homogeneity of gas temperature; Described blower fan and the first drive motor be fixed on outside temperature/humidity verification box casing are in transmission connection.The upper end in described air channel is communicated with the air intake opening of blower fan, and the gas outlet of described blower fan is communicated with by circular pipe with the Metal Ball with spherical microcellular structure being positioned at work chamber; The upper end of described sheet metal and the junction of temperature/humidity verification box cabinet wall are provided with for liquid sealant in seal fluid calibration cell.
Described liquid constant temperature device comprises liquid thermostatic bath and is positioned at the liquid thermostatic bath stirrer of liquid thermostatic bath, described liquid thermostatic bath stirrer and the second drive motor be fixed on outside temperature/humidity verification box casing, the upper portion side wall of described liquid thermostatic bath is provided with spout hole and the fluid sealant for liquid in seal fluid calibration cell.
The top of described work chamber is handstand funnel structure, the bottom of work chamber is funnel structure, described Metal Ball is positioned at the handstand funnel structure top of work chamber, the connectivity part of Metal Ball and circular pipe is provided with the most advanced and sophisticated bellmouth pointing to the Metal Ball centre of sphere, air from blower fan enters Metal Ball through circular pipe, due to the effect of bellmouth, evenly spread out by the microcellular structure of Metal Ball after gas is first concentrated; Upper micropore metal plate of material is had near the work chamber's internal fixtion immediately below Metal Ball; Near being fixed with lower micropore metal plate of material directly over the funnel structure of bottom in described work chamber, upper micropore metal plate of material and lower micropore metal plate of material ensure that stability and the homogeneity of temperature/humidity verification box wind speed.Described upper micropore metal plate of material and lower micropore metal plate of material are all fixedly connected on the madial wall of work chamber by gib screw by coupled corner bracket.
The beneficial effects of the utility model are: the utility model carries out redesigning for the deficiency of existing humiture useful test case, it is in humiture useful test case 5 DEG C ~ 50 DEG C temperature ranges, and the stability of temperature and homogeneity can reach respectively ± level of 0.01 DEG C and 0.02 DEG C; In the humidity range of 40%RH ~ 90%RH, the stability of humidity and homogeneity can reach respectively ± level of 0.2%RH and 0.3%RH; Wind speed in case is not more than 0.2m/s.It brings up to a new height the stability of humiture useful test case temperature, humidity, wind speed and homogeneity, and the wind speed particularly met required by the mechanical type Hygrothermograph vertification regulation of JJG205-2005 is not more than the requirement of 0.2m/s.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The structural representation of the humiture useful test case before Fig. 2 the utility model applying date.
In the drawings, 1, temperature/humidity verification box casing 2, heat-insulation layer 3, wind direction adjusting plate 4, fan driving motor 5, blower fan 6, air-duct clapboard 7, heating element 8, air channel 9, refrigerator 10, humidifier.，
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Of the present utility model as follows with the structural design of the humiture useful test case of constant temperature by heating liquid: the sheet metal 120 liquid thermostatic bath 115 lateral layout being become not have heat-insulation layer, block of metal plate 120 serves as the whole side inside the air channel 119 of humiture useful test case.A face of sheet metal 120 is by the heating liquid of liquid thermostatic bath 115 and constant temperature, and utilize the heat conductivility that metal is good, another face just to air heat and constant temperature, can so just achieve liquid to the heating of air and constant temperature.Due to the inherent characteristic that liquid thermal conductivity is good, thermal capacity is large etc., fluid temperature stability in liquid thermostatic bath 115 and homogeneity are very good, the temperature stability of block of metal plate 120 and homogeneity, substantially identical with homogeneity with fluid temperature stability, sheet metal 120 has just become temperature stabilization uniform thermostat metal plate again.Which solves the thermal source that current humiture useful test case use heating element is not temperature stabilization, the problem that heating surface (area) (HS is little again.
Humidifier 121 and dehumidifier 122 are designed in the bottom of work chamber 104, the air channel 119 of thermostat metal plate side adopts narrows design, the benefit narrowed air to be contacted more fully, to carry out sufficient heat interchange with thermostat metal plate.
The air channel 119 of humiture useful test case is designed the top extending to work chamber 104, connects with the same air intake vent being arranged on the blower fan 108 at top.The air outlet of blower fan 108 is connected with circular pipe, and circular pipe is connected with work chamber 104 funnelform top.Air, after blower fan compression, can obtain one stable air-flow in circular pipe.Generally, the bore of the air outlet of circular pipe, less than square work space xsect, the ball of metallic material at this moment having spherical micropore by is slowed down and water conservancy diversion, then by one piece of thorough water conservancy diversion of micropore metal plate of material.After air-flow flows through work space from top to bottom, equally by one piece, bottom micropore metal plate of material, water conservancy diversion is recycled to regulate in air channel and forms circulation.
By design described above, thus obtain a kind of temperature, humidity, wind speed are highly stable and even, the humiture useful test case that wind speed is little again.
The utility model is realized by following concrete structure, as shown in Figure 1, it comprises temperature/humidity verification box casing 109 and is connected to the heat-preservation cotton layer 105 on temperature/humidity verification box casing 109 madial wall, it is characterized in that, it also comprises the liquid constant temperature device being positioned at temperature/humidity verification box casing 109, air channel 119 and work chamber 104, isothermal liquid in described liquid constant temperature device carries out heat interchange through the sheet metal 120 between liquid constant temperature device and air channel 119 with the air in air channel 119, described air channel 119 is the slypes be made up of sheet metal 120 and heat-preservation cotton layer 105, the two ends in air channel 119 connect the two ends connection of work chamber 104 respectively, the blower fan 108 for driving gas circulation is also provided with between work chamber 104 and air channel 119, as long as wherein the blast of blower fan 108 can reach the pressure driven needed for air circulation.Be provided with the humidifier 121 for adjustments of gas temperature and humidity and dehumidifier 122 with bottom, air channel 119 connectivity part bottom described work chamber 104.
The periphery of described blower fan 108 is heat-preservation cotton layer 105, which ensure that the heat from air channel 123 gas does not lose, and ensures the homogeneity of gas temperature; Described blower fan 108 is in transmission connection with the first drive motor 107 be fixed on outside temperature/humidity verification box casing 109.The upper end in described air channel 119 is communicated with the air intake opening 111 of blower fan 108, and the gas outlet 110 of described blower fan 108 is communicated with by circular pipe with the Metal Ball 112 with spherical microcellular structure being positioned at work chamber 104; The upper end of described sheet metal 120 and the junction of temperature/humidity verification box casing 109 inwall are provided with for liquid sealant 113 in seal fluid calibration cell 115.
Described liquid constant temperature device comprises liquid thermostatic bath 115 and is positioned at the liquid thermostatic bath stirrer 118 of liquid thermostatic bath 115, described liquid thermostatic bath stirrer 118 and the second drive motor 114 be fixed on outside temperature/humidity verification box casing 109, the upper portion side wall of described liquid thermostatic bath 115 is provided with spout hole 117 and the fluid sealant 116 for liquid in seal fluid calibration cell 115.
The top of described work chamber 104 is handstand funnel structure, the bottom of work chamber 104 is funnel structure, described Metal Ball 112 is positioned at the handstand funnel structure top of work chamber 104, Metal Ball 112 and the connectivity part of circular pipe are provided with the most advanced and sophisticated bellmouth pointing to Metal Ball 112 centre of sphere, air from blower fan 108 enters Metal Ball 112 through circular pipe, due to the effect of bellmouth, evenly spread out by the microcellular structure of Metal Ball 112 after gas is first concentrated; Upper micropore metal plate of material 106 is had near work chamber 104 internal fixtion immediately below Metal Ball 112; Near being fixed with lower micropore metal plate of material 101 directly over the funnel structure of bottom in described work chamber 104, upper micropore metal plate of material 106 and lower micropore metal plate of material 101 ensure that stability and the homogeneity of temperature/humidity verification box wind speed.Described upper micropore metal plate of material 106 and lower micropore metal plate of material 101 are all fixedly connected on the madial wall of work chamber 104 by gib screw 102 by coupled corner bracket 103.
Principle of work of the present utility model is such.
Due to the insulation effect of heat-preservation cotton layer 105, make the constant of the gas temperature of the liquid in liquid thermostatic bath 115 and air channel 119 and work chamber 104, the isothermal liquid in liquid thermostatic bath 115 is by the gas in sheet metal 120 heating air duct 119; Due to the whole sidewall that sheet metal 120 is air channels 119, the gas in whole air channel 119 is heated simultaneously, which ensure that in air channel 119, gas is in the temperature homogeneity of initial period;
Blower fan 108 is under the drive of the first drive motor 107, compressible drive is from the gas in air channel 119, and deliver gas to the top of work chamber 104, the top of work chamber 104 is handstand funnel-form, be beneficial to the even diffusion of gas in work chamber 104, gas passes through the deceleration of Metal Ball 112 and the deceleration of diffusion and upper micropore metal plate of material 106 and lower micropore metal plate of material 101 and water conservancy diversion with spherical microcellular structure from the top down successively, then the funnel structure bottom work chamber 104 is concentrated and is entered air channel 119, simultaneously when entering air channel 119, air will be carried out the adjustment of temperature and humidity by the humidifier 121 that is positioned at bottom air channel 119 and dehumidifier 122, then air channel 119 is back to from bottom to top, again carry out heat interchange with the liquid in liquid thermostatic bath 115, and then complete whole circulation.
Compared with the structure of the conventional apparatus shown in schematic diagram 2, the utility model unique point is summarized as follows:
(1) current method uses heating element and refrigerator directly to air heat and cooling, the utility model uses temperature stabilization and uniform liquid in liquid thermostatic bath, air is heated and constant temperature, the air themperature of such acquisition is substantially identical with fluid temperature, and stability is also substantially identical; The raising of temperature stability, makes the stability of humidity be improved simultaneously;
(2) current method uses general blower fan directly to stir air, the utility model uses blower fan to produce one air-flow, then use spherical micropore metal material ball and micropore metal plate of material, air-flow is slowed down and water conservancy diversion, thus obtain little, stable and uniform wind speed;
(3) work space upper and lower is designed to funnel-form, and the effect of upper funnel shape impels air evenly to spread, and the effect of lower hopper shape impels air evenly to reclaim;
(4) dehumidifier and humidifier design are bottom work space;
(5) air channel is designed to extend to work space top;
(6) this method adopts the design that air channel is narrowed, and about only has 1/10 of current air channel, enables air carry out heat interchange more fully.
The utility model create by the humiture useful test case of heating liquid and constant temperature, air heated and the mode of constant temperature owing to have employed liquid in liquid thermostatic bath, the stability of the humiture useful test case temperature obtained and homogeneity are substantially identical with homogeneity with the stability of liquid thermostatic bath; In the temperature range of 5 DEG C ~ 50 DEG C, the stability of air themperature and homogeneity, reach ± the level of 0.01 DEG C and 0.02 DEG C; In the humidity range of 40%RH ~ 90%RH, the stability of humidity and homogeneity, reach ± the level of 0.2%RH and 0.3%RH.Owing to have employed spherical micropore metal material ball and micropore metal plate of material is slowed down and water conservancy diversion to air-flow, obtain the wind speed being less than 0.2m/s.
Claims (8)
1. the temperature/humidity verification box by heating liquid and constant temperature, it comprises temperature/humidity verification box casing (109) and is filled in the heat-preservation cotton layer (105) on temperature/humidity verification box casing (109) madial wall, it is characterized in that, it also comprises the liquid constant temperature device being positioned at temperature/humidity verification box casing (109), air channel (119) and work chamber (104), isothermal liquid in described liquid constant temperature device carries out heat interchange through being positioned at the sheet metal (120) between liquid constant temperature device and air channel (119) with the air in air channel (119), described air channel (119) is the slype be made up of sheet metal (120) and heat-preservation cotton layer (105), the two ends in air channel (119) connect the two ends connection of work chamber (104) respectively, the blower fan (108) for driving gas circulation is also provided with between work chamber (104) and air channel (119).
2. as claimed in claim 1 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, bottom described work chamber (104), be provided with the humidifier (121) for adjustments of gas temperature and humidity and dehumidifier (122) with air channel (119) bottom connectivity part.
3. as claimed in claim 1 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, the periphery of described blower fan (108) is heat-preservation cotton layer (105), described blower fan (108) be fixed on temperature/humidity verification box casing (109) the first drive motor (107) outward and be in transmission connection.
4. as claimed in claim 1 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, described liquid constant temperature device comprises liquid thermostatic bath (115) and is positioned at the liquid thermostatic bath stirrer (118) of liquid thermostatic bath (115), described liquid thermostatic bath stirrer (118)) be fixed on temperature/humidity verification box casing (109) outside the second drive motor (114), the upper portion side wall of described liquid thermostatic bath (115) is provided with spout hole (117) and the fluid sealant (116) for seal fluid calibration cell (115) interior liquid.
5. as claimed in claim 1 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, the upper end in described air channel (119) is communicated with the air intake opening (111) of blower fan (108), and the gas outlet (110) of described blower fan (108) is communicated with by circular pipe with the Metal Ball (112) with spherical microcellular structure being positioned at work chamber (104).
6. as claimed in claim 1 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, the upper end of described sheet metal (120) and the junction of temperature/humidity verification box casing (109) inwall are provided with for seal fluid calibration cell (115) interior liquid sealant (113).
7. as described in claim 1 or 5 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, the top of described work chamber (104) is handstand funnel structure, the bottom of work chamber (104) is funnel structure, the described Metal Ball (112) with spherical microcellular structure is positioned at the handstand funnel structure top of work chamber (104), and the connectivity part of the Metal Ball (112) and circular pipe with spherical microcellular structure is provided with the most advanced and sophisticated bellmouth pointing to Metal Ball (112) centre of sphere with spherical microcellular structure; Upper micropore metal plate of material (106) is had near work chamber (104) internal fixtion immediately below the Metal Ball (112) with spherical microcellular structure; Near being fixed with lower micropore metal plate of material (101) directly over the funnel structure of bottom in described work chamber (104).
8. as claimed in claim 7 by the temperature/humidity verification box of heating liquid and constant temperature, it is characterized in that, described upper micropore metal plate of material (106) and lower micropore metal plate of material (101) are all fixedly connected on the madial wall of work chamber (104) by gib screw (102) by coupled corner bracket (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436683.0U CN204128587U (en) | 2014-08-04 | 2014-08-04 | A kind of temperature/humidity verification box by heating liquid and constant temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420436683.0U CN204128587U (en) | 2014-08-04 | 2014-08-04 | A kind of temperature/humidity verification box by heating liquid and constant temperature |
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| CN204128587U true CN204128587U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420436683.0U Withdrawn - After Issue CN204128587U (en) | 2014-08-04 | 2014-08-04 | A kind of temperature/humidity verification box by heating liquid and constant temperature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132686A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Thermostatic temperature and humidity calibration box heated through liquid |
| CN104898726A (en) * | 2015-04-16 | 2015-09-09 | 香河国瑞智测试设备有限公司 | Humidity control system using infrared humidity measurement |
| CN105928592A (en) * | 2016-04-27 | 2016-09-07 | 中国计量大学 | Rapid detection pVTt methodgas flow standard device and detection method |
| CN106441406A (en) * | 2016-11-11 | 2017-02-22 | 中国计量大学 | Loading and moving device for verifying mechanical hygrothermographs |
-
2014
- 2014-08-04 CN CN201420436683.0U patent/CN204128587U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132686A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Thermostatic temperature and humidity calibration box heated through liquid |
| CN104132686B (en) * | 2014-08-04 | 2017-04-19 | 广州赛宝计量检测中心服务有限公司 | Thermostatic temperature and humidity calibration box heated through liquid |
| CN104898726A (en) * | 2015-04-16 | 2015-09-09 | 香河国瑞智测试设备有限公司 | Humidity control system using infrared humidity measurement |
| CN105928592A (en) * | 2016-04-27 | 2016-09-07 | 中国计量大学 | Rapid detection pVTt methodgas flow standard device and detection method |
| CN106441406A (en) * | 2016-11-11 | 2017-02-22 | 中国计量大学 | Loading and moving device for verifying mechanical hygrothermographs |
| CN106441406B (en) * | 2016-11-11 | 2019-01-01 | 中国计量大学 | For examining and determine the loading and telecontrol equipment of mechanical Hygrothermograph |
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