CN106944170A - A kind of constant temperature and humidity humiture Alternating Test case - Google Patents
A kind of constant temperature and humidity humiture Alternating Test case Download PDFInfo
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- CN106944170A CN106944170A CN201710324320.6A CN201710324320A CN106944170A CN 106944170 A CN106944170 A CN 106944170A CN 201710324320 A CN201710324320 A CN 201710324320A CN 106944170 A CN106944170 A CN 106944170A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/02—Air-pressure chambers; Air-locks therefor
- B01L1/025—Environmental chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/50—Cryostats
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Other Air-Conditioning Systems (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to a kind of constant temperature and humidity humiture Alternating Test case, including casing, casing front end face is provided with chamber door, door handle is installed on chamber door, it is anterior in casing to be provided with laboratory, specimen holder is installed in laboratory, rear portion is disposed with circulation fan blade from top to bottom in casing, heater, steam pipe, evaporator, base of evaporator is provided with shallow slot, shallow slot connects storage tank by pipeline, storage tank is located at bottom half, fan blade is circulated inside volute, circulate the output end that fan blade is arranged on circulation motor, circulation motor is installed at the top of outside the enclosure, steam pipe is connected with steam generator, steam generator is arranged on outside casing, magnetic valve for controlling the quantity of steam for entering laboratory is installed on steam pipe；The present invention can avoid conventional boiler delayed to what is heated by cold conditions, while the quantity of steam of chamber can be entered by magnetic valve precise control, and it is follow-up weak when avoiding difficulty of the shallow slot humidification when controlling low humidity with high humidity.
Description
[technical field]
The present invention relates to environment test device technical field, specifically a kind of constant temperature and humidity humiture Alternating Test
Case.
[background technology]
At present, the conventional humidification method of existing Temperature and Humidity Control has shallow-slot type to humidify and boiler humidification, both sides
Formula respectively has advantage and disadvantage.Wherein, conventional boiler formula humidifier is made up of storage tank and immersion heater, when equipment works, heating
Device is heated to boiler reclaimed water, and the steam of generation is mixed by conduit with inner loop air, is uniformly scattered onto in air, is
System accurately adjusts heater working condition according to humidity requirement and produces appropriate steam.Its advantage is：1. quantity of steam is big, is set to large-scale
It is standby very suitable；2. steam continues.It has the disadvantage：1. water is boiled needs water larger；2. have one from cold conditions to steam is produced
The individual lag period, after humidity is reached, an overshoot value is had again；3. boiling can produce incrustation scale for a long time；4. larger humidification is needed
Device；5. stop after humidification, may proceed to produce a part of steam and come out, influence is produced on experiment.
And shallow-slot type humidification is similar with conventional boiler humidification, but it is that heater is placed in an open space, one
As inlet scoop position in case, when inner air sucks inlet scoop, it will be by shallow slot top, and the vapor that shallow slot is produced is inhaled
Enter up.Its advantage is：1. humid control is responded in time, overshooted smaller；2. need not seethe with excitement could produce steam；3. it is less
Boiling can produce less incrustation scale；4. repair and maintenance is convenient.It has the disadvantage：1. a large amount of steam can not be produced；2. interior case reclaimed water
Water can cause low humidity point to be relatively difficult to control in groove；3. stop after humidification, may proceed to produce a part of steam and come out, to experiment
Produce influence.
Summary：Above two control mode respectively has advantage and disadvantage, can be produced when specific humiture alternation curve is run
Raw variety of problems.Now by taking popular standard PV1200 as an example, when being tested, shallow slot humidification method is when temperature is relatively low, definitely
When water capacity is little such as the PV1200 first steps front half section can normal regulating, but with the rising of temperature and humidity, need
The humidification amount wanted is often that shallow slot humidification can not be met, and Humidity Detection value can be caused to be less than humidity set point, generation is delayed simultaneously
There is larger overshoot when can cause to control constant.And if humidified using boiler, although Cheng great Jia moisture will after can meeting
Ask, but because curve has subzero state of temperature (the 3rd the 4th step), this period, boiler will be cooled down, it is cold when terminating
When jelly state starts humidification, the hysteresis quality of conventional boiler humidification just embodies clearly, and its one longer time of needs makes
Boiling water, can so cause conventional humid control to produce a larger overshoot (overshoot).
[content of the invention]
A kind of constant temperature and humidity humiture Alternating Test case is provided present invention aim to solve above-mentioned deficiency, energy
Enough avoid conventional boiler by cold conditions to the delayed of heating, while the steam of chamber can be entered by magnetic valve precise control
Amount, and it is follow-up weak when avoiding difficulty of the shallow slot humidification when controlling low humidity with high humidity.
Design to achieve the above object before a kind of constant temperature and humidity humiture Alternating Test case, including casing 1, the casing 1
End face is provided with chamber door 2, is provided with the chamber door 2 in door handle 3, the casing 1 and anterior is provided with laboratory 4, the experiment
Rear portion in specimen holder 5, the casing 1 is installed described provided with circulation fan blade 6, heater 7, steam pipe 8, evaporator 9 in room 4
Circulation fan blade 6, heater 7, steam pipe 8, evaporator 9 are set gradually from top to bottom, and the bottom of evaporator 9 is provided with shallow slot
10, the shallow slot 10 connects storage tank by pipeline, and the storage tank is located at the bottom of casing 1, and the circulation fan blade 6 is located at volute
Inside 11, the circulation fan blade 6 is arranged on the output end of circulation motor 12, and the circulation motor 12 is installed at the top of outside the enclosure,
The steam pipe 8 is connected with steam generator 13, and the steam generator 13 is arranged on outside casing 1, pacifies on the steam pipe 8
Magnetic valve equipped with the quantity of steam for controlling to enter laboratory 4.
Further, the arrival end of the evaporator 9 connects condenser by pipeline, the evaporator 9 and condenser it
Between be provided with filter, the arrival end connection compressor of the condenser.
Further, the side of casing 1 is connected with regulator cubicle 14, the front end face of the regulator cubicle 14 and is provided with control
Panel 15.
Further, the control panel 15 is by line connecting controller, and the controller uses PID arithmetic, described
The signal output part of controller is electrically connected magnetic valve and is arranged on the Temperature Humidity Sensor of the sidepiece of shallow slot 10.
Further, the chamber door 2 is provided with glass vision panel 16, and the glass vision panel 16 uses multilayer hollow safety glass
It is made, test lead hole 17 is offered on the side wall of the casing 1, the bottom of casing 1 is provided with universal caster wheel 18.
Further, the casing 1 includes outer container and interior case, and the outer container uses the cold rolling color steel that surface plastic spraying is handled
It is made, the interior case is made of stainless steel plate, heat-insulation layer is provided between the outer container and interior case, the heat-insulation layer uses hard
Resistance combustion polyurethane foam is made with glass fibre.
Further, ball float is provided with the storage tank, the ball float is made of stainless steel, and the storage tank is adopted
It is made of vinyon.
Compared with the existing technology, structure is novel, simple, and reasonable in design, the equipment has shallow slot humidification side simultaneously by the present invention
Constant temperature steam humidification method after formula and improvement, so that when running steady-state damp heat test, shallow slot humidification method can be used；And
When running alternation Humidity Test, then constant temperature steam humidification method can be used, constant temperature steam humidification can avoid traditional pot
Stove by cold conditions to the delayed of heating, while the quantity of steam of chamber can be entered by magnetic valve precise control, it is to avoid shallow slot
Follow-up weak when humidifying the difficulty when controlling low humidity with high humidity, it has had shallow slot humidification quick response and conventional boiler concurrently
The advantage of the greatly moisture of humidification；Simultaneously as be constant temperature and pressure in boiler, it is to avoid the shortcoming of boiler is boiled repeatedly, with most
Few heating amount maintains pressure constant state, is worthy of popularization.
[brief description of the drawings]
Fig. 1 is the positive structure schematic of the present invention；
Fig. 2 is the side structure schematic diagram of the present invention；
Fig. 3 is the overlooking the structure diagram of the present invention；
Curve synoptic diagram when Fig. 4 is present invention operation alternation curve；
In figure：1st, casing 2, chamber door 3, door handle 4, laboratory 5, specimen holder 6, circulation fan blade 7, heater 8,
Steam pipe 9, evaporator 10, shallow slot 11, volute 12, circulation motor 13, steam generator 14, regulator cubicle 15, chain of command
Plate 16, glass vision panel 17, test lead hole 18, universal caster wheel.
[embodiment]
Further explained below is made to the present invention below in conjunction with the accompanying drawings：
As shown in drawings, the present invention includes：Casing 1, the front end face of casing 1 is provided with chamber door 2, chamber door 2 and is provided with door knob
In hand 3, casing 1 it is anterior be provided with laboratory 4, laboratory 4 be provided with specimen holder 5, casing 1 rear portion provided with circulation fan blade 6 plus
Hot device 7, steam pipe 8, evaporator 9, circulation fan blade 6, heater 7, steam pipe 8, evaporator 9 are set gradually from top to bottom, are evaporated
The arrival end of device 9 connects condenser by pipeline, and filter, the arrival end of condenser are provided between evaporator 9 and condenser
Compressor is connected, the bottom of evaporator 9 is provided with shallow slot 10, and shallow slot 10 connects storage tank by pipeline, and storage tank is located at the bottom of casing 1
Portion, circulation fan blade 6 is inside volute 11, and circulation fan blade 6 is arranged on the output end of circulation motor 12, and circulation motor 12 is arranged on
The outer top of casing, steam pipe 8 is connected with steam generator 13, and steam generator 13 is arranged on outside casing 1, is pacified on steam pipe 8
Magnetic valve equipped with the quantity of steam for controlling to enter laboratory 4.
In the present invention, the side of casing 1 is connected with regulator cubicle 14, the front end face of regulator cubicle 14 and is provided with control panel 15,
Control panel 15 is by line connecting controller, and controller uses PID arithmetic, and the signal output part of controller is electrically connected electricity
Magnet valve and the Temperature Humidity Sensor for being arranged on the sidepiece of shallow slot 10.Chamber door 2 is provided with glass vision panel 16, and glass vision panel 16 is using more
Layer hollow tempered glass is made, and test lead hole 17 is offered on the side wall of casing 1, the bottom of casing 1 is provided with universal caster wheel 18；
Casing 1 includes outer container and interior case, and the cold rolling color steel that outer container is handled using surface plastic spraying is made, and interior case uses stainless steel plate system
Into provided with heat-insulation layer between outer container and interior case, heat-insulation layer is made using hard resistance combustion polyurethane foam with glass fibre；Storage tank
Interior to be provided with ball float, ball float is made of stainless steel, and storage tank is made of vinyon.
The temperature range of the present invention is -40~150 DEG C, and humidity range is 30~98%RH, and it is humidified has shallow slot simultaneously
Constant temperature steam humidification method after humidification method and improvement, when running steady-state damp heat test, uses shallow slot humidification method；Work as operation
During alternation Humidity Test, using constant temperature steam humidification method, automatically adjusted by PID.Wherein, the principle of constant temperature steam humidification
For：It is similar with boiler humidification, using saturated steam and the one-to-one relation of its saturation temperature, boiler saturation temperature is controlled,
The vapour source for producing a relative constancy is stored in boiler, so avoids conventional boiler by cold conditions to the delayed of heating,
Enter the quantity of steam of interior case by magnetic valve precise control simultaneously, it is to avoid difficult and height of the shallow slot humidification when controlling low humidity
Follow-up weak when wet, such a mode has had the advantage of shallow slot humidification quick response and the greatly moisture of conventional boiler humidification concurrently,
Seem masterly during correspondence humiture Alternating Test.Meanwhile, in boiler because being constant temperature and pressure, it is to avoid boil boiler repeatedly
Shortcoming, maintain pressure constant state with minimum heating amount.
As shown in Figure 4, to run curve during alternation curve using chamber of the present invention, it is not difficult to send out from curve
Existing, detected value is fitted closely with setting value, without significantly overshoot or delayed phenomenon.
The present invention is simultaneously not limited to the embodiments described above limitation, other any Spirit Essences and principle without departing from the present invention
Lower made change, modification, replacement, combination, simplification, should be equivalent substitute mode, be included in the protection model of the present invention
Within enclosing.
Claims (7)
1. a kind of constant temperature and humidity humiture Alternating Test case, it is characterised in that：Including casing (1), on casing (1) front end face
Provided with chamber door (2), front portion in door handle (3), the casing (1) is installed on the chamber door (2) and is provided with laboratory (4), it is described
Specimen holder (5) is installed, the interior rear portion of the casing (1) is provided with circulation fan blade (6), heater (7), steam pipe in laboratory (4)
(8), evaporator (9), the circulation fan blade (6), heater (7), steam pipe (8), evaporator (9) are set gradually from top to bottom,
Evaporator (9) bottom is provided with shallow slot (10), and the shallow slot (10) connects storage tank by pipeline, and the storage tank is located at
Casing (1) bottom, the circulation fan blade (6) is internal located at volute (11), and the circulation fan blade (6) is arranged on circulation motor (12)
Output end, the circulation motor (12) installed at the top of outside the enclosure, and the steam pipe (8) is connected with steam generator (13),
The steam generator (13) is arranged on to be provided with casing (1) outside, the steam pipe (8) enters laboratory for control
(4) magnetic valve of quantity of steam.
2. constant temperature and humidity humiture Alternating Test case as claimed in claim 1, it is characterised in that：Evaporator (9) enter
Mouth end connects condenser by pipeline, and the evaporator (9) is provided with filter, the entrance of the condenser between condenser
End connection compressor.
3. constant temperature and humidity humiture Alternating Test case as claimed in claim 1 or 2, it is characterised in that：Casing (1) side
It is connected with regulator cubicle (14), the front end face of the regulator cubicle (14) and is provided with control panel (15).
4. constant temperature and humidity humiture Alternating Test case as claimed in claim 3, it is characterised in that：The control panel (15) is led to
Line connecting controller is crossed, the controller uses PID arithmetic, and the signal output part of the controller is electrically connected magnetic valve
And it is arranged on the Temperature Humidity Sensor of shallow slot (10) sidepiece.
5. constant temperature and humidity humiture Alternating Test case as claimed in claim 4, it is characterised in that：The chamber door (2) is provided with
Glass vision panel (16), the glass vision panel (16) is made of multilayer hollow safety glass, is opened up on the side wall of the casing (1)
There is test lead hole (17), casing (1) bottom is provided with universal caster wheel (18).
6. constant temperature and humidity humiture Alternating Test case as claimed in claim 5, it is characterised in that：The casing (1) includes outer
Case and interior case, the cold rolling color steel that the outer container is handled using surface plastic spraying are made, and the interior case is made of stainless steel plate, institute
State and heat-insulation layer is provided between outer container and interior case, the heat-insulation layer is made using hard resistance combustion polyurethane foam with glass fibre.
7. constant temperature and humidity humiture Alternating Test case as claimed in claim 6, it is characterised in that：Provided with floating in the storage tank
Ball, the ball float is made of stainless steel, and the storage tank is made of vinyon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324320.6A CN106944170A (en) | 2017-05-10 | 2017-05-10 | A kind of constant temperature and humidity humiture Alternating Test case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324320.6A CN106944170A (en) | 2017-05-10 | 2017-05-10 | A kind of constant temperature and humidity humiture Alternating Test case |
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| Publication Number | Publication Date |
|---|---|
| CN106944170A true CN106944170A (en) | 2017-07-14 |
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ID=59479677
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324320.6A Pending CN106944170A (en) | 2017-05-10 | 2017-05-10 | A kind of constant temperature and humidity humiture Alternating Test case |
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| CN (1) | CN106944170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588963A (en) * | 2017-07-20 | 2018-01-16 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of vehicle steady-state damp heat test method |
-
2017
- 2017-05-10 CN CN201710324320.6A patent/CN106944170A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588963A (en) * | 2017-07-20 | 2018-01-16 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of vehicle steady-state damp heat test method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170714 |
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| WD01 | Invention patent application deemed withdrawn after publication |