CN105466969B - A kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module - Google Patents
A kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module Download PDFInfo
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- CN105466969B CN105466969B CN201510995623.1A CN201510995623A CN105466969B CN 105466969 B CN105466969 B CN 105466969B CN 201510995623 A CN201510995623 A CN 201510995623A CN 105466969 B CN105466969 B CN 105466969B
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- gas circuit
- dew point
- block body
- integration module
- gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
- G01N25/68—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of a condensing surface
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module, gas circuit integration module includes a gas circuit block body, and the duct of all directions is provided in air passage block body interior；It is further fixed on gas path joint, exhaust joint, solenoid valve and flow sensor.Gas circuit integration module has the characteristics that gas circuit connection is reliable between compact, each unit, gas circuit assembly is simple and efficiency of assembling is high；Using the chilled mirror dew point instrument of this gas circuit integration module, the appearance and size of entire chilled mirror dew point instrument can be reduced, mitigates chilled mirror dew point instrument installation weight, keeps chilled mirror dew point instrument easy to carry, improves the reliability that chilled mirror dew point instrument measures humidity.
Description
Technical field
The invention belongs to dew-point temperature metering, measuring instrument field, more particularly, to a kind of accurate Cold Mirrors dew point hygrometer and its
Gas circuit integration module.
Background technology
With the development of the times, scientific research is measured, in aerospace, chemical industry, microelectronics, electric power, power plant, gas industry, agriculture
The industries such as industry, HVAC, weaving have increasing need for carrying out humidity quantitative measurement, in order to improve the quality of product, performance and can
By property, control to environment epidemic disaster and commonplace skill is all had become to the monitoring and analysis of industrial materials moisture content value
One of art condition.
Chilled mirror dew point instrument is widely used in space division, petrochemical industry, natural gas, meteorology, electric power, microelectronics, medicine, aviation boat
The detection of moisture in the various gases in the fields such as it.And chilled mirror dew point instrument is used to measure with accuracy height, broad quantum, make
The advantages that with facilitating.Therefore, the reference instrument of moisture measurement is generally used it as both at home and abroad.
The principle of chilled mirror dew point instrument is：Tested moisture skims over Cold Mirrors face when entering dew point measurement room, when mirror temperature is higher than
When the dew-point temperature of moisture, minute surface is in drying regime, and the illumination that light source is sent out in the dew device of photoelectricity inspection at this time is on minute surface, almost
It is fully reflective, simultaneously output photoelectric signal is sensed by photoelectric sensor, compares through control loop, amplify, thermoelectricity is driven to pump, to mirror
Face refrigeration.When mirror temperature is down to moisture dew-point temperature, start to condense (frost) on minute surface, illumination occurs unrestrained anti-on minute surface
Penetrate, the reflection signal that photoelectric sensor senses weakens therewith, this variation compares through control loop, amplify after adjust thermoelectricity pump,
Its refrigeration work consumption is set suitably to reduce, finally, mirror temperature is maintained in sample gas dew-point temperature.Mirror temperature is tightly attached to Cold Mirrors by one
Platinum resistance temperature sensor induction below face, and show on a display screen.In measurement process, with the reduction of temperature, quilt
The steam in gas is surveyed close to saturation state, due to graviational interaction, Water Molecular Adsorption forms a thin layer of moisture film on minute surface.
This is the first stage to form dew.When mirror temperature continues to decline, the thickness of moisture film gradually increases, this is to form dew second
Stage.In in this stage, balance of force of the Free Surface between the gravitation of hydrone and the surface tension of moisture film starts to send out
The influence of changing, the latter gradually plays dominating role.With the further decline of mirror temperature, dew drop starts to occur, by aobvious
Micro mirror can see isolated growth and be distributed irregular dew drop, and then cut-layer is spread on the surface with speed quickly, this
When can consider that liquid-vapor equilibrium starts, that is, reach dew point.
Currently, both at home and abroad existing chilled mirror dew point instrument gas circuit connection it is more complicated, gas circuit by air inlet pipe, dew point room,
The compositions such as escape pipe, valve island, connecting tube, flowmeter gas circuit, exhaust pipe, humidification gas circuit pipe.Pass through gas path joint between each section
It is connected with stainless steel tube or polyfluortetraethylene pipe.Since each gas circuit pipe has minimum radius bend to need between each pipeline in addition
It is connected with connector, makes to have much room for accommodating gas circuit inside chilled mirror dew point instrument, there are volumes to make chilled mirror dew point instrument
There is gas circuit sealing reliability difference in big problem, but also there are cold since chilled mirror dew point instrument gas circuit jointing is excessive
The low problem of the big packaging efficiency of mirror dew point hygrometer gas circuit assembly difficulty.
Invention content
In view of this, the present invention is directed to chilled mirror dew point instrument each section gas circuit is concentrated on the gas circuit that an inside is provided with duct
In block, to solve, chilled mirror dew point instrument gas circuit space is big, the excessive gas circuit sealing reliability of connector is poor, the assembly of chilled mirror dew point instrument gas circuit
The low problem of the big packaging efficiency of difficulty.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of novel accurate Cold Mirrors dew point hygrometer gas circuit integration module, including a gas circuit block body, in gas circuit block body
Inside is provided with the duct of all directions.
Be further fixed on several gas path joints and several exhaust joints on the gas circuit block body, the gas path joint and
Exhaust joint is connected with the intrinsic corresponding duct of air passage block respectively.
Several solenoid valves and several flow sensors, the solenoid valve and stream are also installed on gas circuit block body
Quantity sensor each communicates with the corresponding duct of air passage block body interior, the break-make in the corresponding duct of the solenoid valve control, described
Flow sensor incudes the flow in corresponding duct.
The gas path joint and exhaust joint are threadedly secured in by sealing on gas circuit block body.
The solenoid valve and flow sensor are threadedly secured in by sealing on gas circuit block body.
A kind of novel accurate Cold Mirrors dew point hygrometer, using above-mentioned gas circuit integration module.
Compared with the existing technology, chilled mirror dew point instrument gas circuit integration module of the present invention has compact, each
The feature that gas circuit connection is reliable between unit, gas circuit assembly is simple and efficiency of assembling is high.Revealed using the Cold Mirrors of this gas circuit integration module
Point instrument, can reduce the appearance and size of entire chilled mirror dew point instrument, mitigate chilled mirror dew point instrument installation weight, make chilled mirror dew point instrument convenient for taking
Band improves the reliability that chilled mirror dew point instrument measures humidity.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 a and Fig. 1 b are respectively the front view and side view of the gas circuit integration module described in the embodiment of the present invention.
Fig. 2 a and Fig. 2 b are the chilled mirror dew point instrument structure composition schematic diagram of gas circuit integration module using the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention." several " then refer to it is at least one, also include more than one.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As illustrated in figs. 1A and ib for structure, the gas circuit integration module proposed by the present invention suitable for chilled mirror dew point instrument,
It includes a gas circuit block body 41, the duct of all directions is provided in air passage block body interior, by these ducts instead of Cold Mirrors
The gas circuit pipe of the original each connection gas circuit of dew point hygrometer, the pipeline of original dispersion is done in an integrated fashion into a module,
Its benefit is to reduce gas circuit space, the usage amount for saving stainless steel and polytetrafluoroethylene (PTFE) pipeline, the easy sealed reliable of assembly.
Several gas path joints 42 (the present embodiment show be five) and several are further fixed on gas circuit block body 41
Exhaust joint 45 (it is one that the present embodiment, which shows), the gas path joint 42 and exhaust joint 45 respectively with gas circuit block body 41
Interior corresponding duct is connected；
Gas path joint 42 is used to connect metering valve air inlet, dew point room air inlet/outlet and the automatic humidification dress of chilled mirror dew point instrument
Humidification gas circuit pipe is set, is linked and packed convenient and reliable, to reduce each external gas circuit length of pipe, efficiency of assembling is improved and increases
Encrypt the reliability of envelope.
The hole that tested moisture of the exhaust joint 45 for that will enter chilled mirror dew point instrument dew point room passes through air passage block body interior
Road is discharged from the connector, is connected in other gas circuits by air passage block body interior duct, reduces gas circuit pipeline size in this way,
To simplify the reliability that bulk improves gas circuit sealing.
Several solenoid valves 43 and several flow sensors 44, the present embodiment are also installed on gas circuit block body 41
What is showed is that there are two solenoid valve 43 and a flow sensors 44 for installation.The solenoid valve 43 and flow sensor 44 respectively connect
The corresponding duct inside gas circuit block body 41 is passed through, respectively realizes the break-make for controlling corresponding duct and the stream for incuding corresponding duct
Amount.Connection gas circuit length is shortened in this way and reduces structural volume, improves the reliability and assembly reliability of sealing, thus gram
It has taken inconvenience and dimension volume of other chilled mirror dew point instrument from external connection solenoid valve and flow sensor pipeline greatly and sealing can
By property.
As shown, above-mentioned gas path joint 42, solenoid valve 43, flow sensor 44 and exhaust joint 45 can be by close
Envelope is threadedly secured on gas circuit block body 41, forms exquisite gas circuit integration module.
A kind of existing chilled mirror dew point for using gas circuit integration module of the present invention as shown in Figure 2 a and 2 b
Instrument：
It (is wherein contained gas circuit and integrates mould by instrument chassis 1, Switching Power Supply 2, pcb board card 3, gas circuit and humidifier 4
Block), dew point room group 5, Peltier semiconductor cooler group 6, shine and receive light detection group 7, radiator 8, fitting structural assembly
9, the compositions such as ventilating duct 10, fan component 11.This gas circuit integration module compact, gas circuit connection is reliable between each unit, gas
Road assembly is simple and efficiency of assembling is high.It is formed as chilled mirror dew point instrument gas circuit, reduces the shape of entire chilled mirror dew point instrument
Size alleviates chilled mirror dew point instrument installation weight, keeps chilled mirror dew point instrument easy to carry, improve chilled mirror dew point instrument measure humidity can
By property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of novel accurate Cold Mirrors dew point hygrometer, which is characterized in that use a kind of novel accurate Cold Mirrors dew point hygrometer gas circuit
Integration module, including a gas circuit block body (41), the duct of all directions is provided in air passage block body interior；
Several solenoid valves (43) and several flow sensors (44), institute are also installed on the gas circuit block body (41)
It states solenoid valve (43) and flow sensor (44) each communicates with the internal corresponding duct of gas circuit block body (41), the solenoid valve
(43) break-make in corresponding duct is controlled, the flow sensor (44) incudes the flow in corresponding duct；
It further include humidifier.
2. a kind of novel accurate Cold Mirrors dew point hygrometer according to claim 1, it is characterised in that：The gas circuit block body
(41) several gas path joints (42) and several exhaust joints (45) are further fixed on, the gas path joint (42) and exhaust connect
Head (45) is connected with the corresponding duct in gas circuit block body (41) respectively.
3. a kind of novel accurate Cold Mirrors dew point hygrometer according to claim 2, it is characterised in that：The gas path joint (42)
It is threadedly secured on gas circuit block body (41) by sealing with exhaust joint (45).
4. a kind of novel accurate Cold Mirrors dew point hygrometer according to claim 1, it is characterised in that：The solenoid valve (43) and
Flow sensor (44) is threadedly secured in by sealing on gas circuit block body (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995623.1A CN105466969B (en) | 2015-12-23 | 2015-12-23 | A kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995623.1A CN105466969B (en) | 2015-12-23 | 2015-12-23 | A kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105466969A CN105466969A (en) | 2016-04-06 |
| CN105466969B true CN105466969B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510995623.1A Active CN105466969B (en) | 2015-12-23 | 2015-12-23 | A kind of novel accurate Cold Mirrors dew point hygrometer and its gas circuit integration module |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3194108B2 (en) * | 1992-11-26 | 2001-07-30 | 日本酸素株式会社 | Method and apparatus for measuring moisture in gas |
| CN201000442Y (en) * | 2007-01-16 | 2008-01-02 | 丁五行 | Intelligentized rapid survey cold mirror dew point hygrometer |
| CN103018207A (en) * | 2012-10-18 | 2013-04-03 | 常州鸿源动力科技有限公司 | Chilled-mirror dew-point hygrometer based on Stirling low temperature refrigerator |
| CN204133990U (en) * | 2014-09-12 | 2015-02-04 | 南京舒普思达医疗设备有限公司 | A kind of respirator air admission junction device |
| CN104849313A (en) * | 2015-04-10 | 2015-08-19 | 北京兴迪仪器有限责任公司 | Design of chilled mirror method dew point instrument base structure |
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2015
- 2015-12-23 CN CN201510995623.1A patent/CN105466969B/en active Active
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