CN206253434U - A kind of laboratory hood with duct heater - Google Patents
A kind of laboratory hood with duct heater Download PDFInfo
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- CN206253434U CN206253434U CN201621253450.2U CN201621253450U CN206253434U CN 206253434 U CN206253434 U CN 206253434U CN 201621253450 U CN201621253450 U CN 201621253450U CN 206253434 U CN206253434 U CN 206253434U
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- additional thermal
- wind passage
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- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 230000008901 benefit Effects 0.000 claims abstract description 27
- 239000010445 mica Substances 0.000 claims description 12
- 229910052618 mica group Inorganic materials 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000011521 glass Substances 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 230000005611 electricity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 229910001120 nichrome Inorganic materials 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000000505 pernicious effect Effects 0.000 description 2
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- 239000003518 caustics Substances 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002977 hyperthermial effect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model is related to a kind of laboratory hood with duct heater, including cabinet, mend wind passage is provided with cabinet, it is provided with cabinet for the benefit wind entrance that air is supplemented in mend wind passage, electric additional thermal modules are provided with mend wind passage, are filled into and is flowed through the air of mend wind passage from benefit wind entrance for heating.The laboratory hood with duct heater that the utility model is provided, electric additional thermal modules are provided with mend wind passage, the cold new air in outdoor filled into from benefit wind entrance is directly heated by electric additional thermal modules, improve the temperature of the outdoor new air of filled into cold, so as to avoid causing the sliding door glass of laboratory hood to haze or condense, improve the comfort in experimenter's experimentation, and heating is direct, heating process is quick, the efficiency of heating surface is high, heating effect is good, should be widely promoted and uses.
Description
Technical field
The utility model is related to field of experiment equipment, more particularly to a kind of laboratory hood with duct heater.
Background technology
Laboratory hood, is that one kind is applied in laboratory discharge laboratory with by pernicious gas etc. also known as vent cabinet, fume hood
Common equipment.Because often produced in laboratory, particularly chemical laboratory various pernicious gases, foul smell, moisture and easily
Combustion, explosive, corrosive substance etc., for the personal safety of Protection personnel, prevent these nuisances produced in laboratory
Matter spreads in laboratory, and laboratory would generally set laboratory hood, these harmful substances is discharged into laboratory, so as to avoid reality
Test human contact or suck these harmful substances, endanger its personal safety.Thus, laboratory hood turns into laboratory, especially changes
Learn an indispensable important component in laboratory.
Also there are some laboratory hoods to room air is filled into laboratory hood typically by sliding door open front in existing laboratory hood
In be provided with the air-makeup system for filling into outdoor air, as disclosed in Chinese utility model patent document CN201520498631 have mend
The vent cabinet of wind system, is provided with secondary air channel road, and secondary air channel road connects the second ventilating opening and is located at cabinet so that the second ventilating opening
It is connected with outdoor air inlet by concealed secondary air channel road, benefit is started simultaneously when user opens exhaust system for ventilation cabinets
Wind turbine, outdoor fresh air forms upward gas curtain by the second ventilating opening that lift slide door lower end is set, and is directly carried out in vent cabinet
Mend fresh air.And for example vent cabinet disclosed in Chinese utility model patent document CN201520216778, it is provided with air-makeup system, mends
Wind system is connected with the mend wind passage of building, and air-makeup system respectively has at least one to mend wind in the upper and lower part of cabinet
Mouthful, wind-supplying mouth is blown towards in working chamber, with directly to filling into outdoor air in working chamber.
It is this direct to the way that outdoor air is filled into laboratory hood, do not have on weather conditions generally or above zero
Problem, but in very cold winter, especially winter in China northeast, then to experiment can bring obstacle or cause to test people
The problems such as member is uncomfortable.Because in cold winter, the especially winter in China northeast, the temperature of outdoor air is very low, lead to
Subzero is often reached, thus if directly filled into laboratory hood this cold outdoor air, then can be caused from room
The normal temperature air that the outer this Cryogenic air for filling into is filled into interior intersects and mixes, cause the sliding door form of laboratory hood haze or
Person condenses, and is unfavorable for being smoothed out for experiment, while experimenter can also feel extra uncomfortable because of too low air temperature,
Proceeding for influence experimenter's experiment, even causes the discomfort of experimenter's body, such as catch a cold, catch a cold.
To solve the above problems, Chinese utility model patent document CN202741410U discloses compensating ventilation cabinet in a kind of heating
Steel-aluminum structure laboratory hood system, compensating ventilation cabinet steel-aluminum structure laboratory hood system includes the benefit of vent cabinet in the heating
Wind system, it is specific as follows：Because of the difference of each room configuration vent cabinet quantity, while the difference of quantity is opened, therefore it is each logical
Wind cabinet need to be separately configured corresponding benefit blower fan and air-valve.Consider winter experimenter's health demand and power conservation requirement, lead to per 3-5 platforms
Wind cabinet sets a set of benefit fresh air filtering and heating case, and thermal source is 65 degree of hot water of outer net.Benefit wind takes from the wind-supplying mouth set by each room exterior wall.
The operation of air box low noise is mended, noise is less than 48 decibels, and winter mends air temperature more than 10 DEG C of designs, need to configure heating coil.
Although compensating ventilation cabinet steel-aluminum structure laboratory hood system in the heating that above-mentioned patent document is provided, in vent cabinet
Heater is configured with air-makeup system, to heat the cold new air covered from outdoor, such that it is able to avoid causing experiment
Personnel such as catch a cold, catch a cold at other uncomfortable problems.But the heater configured in the vent cabinet air-makeup system is by setting
One heater box, then with 65 is outside one's consideration net hot water to heat heater box again, and then it is new empty to flow through the cold outdoor in heater box
Gas is by after heat exchange, temperature is raised, so as to complete the heating process of new air, i.e., the heating system is by with hot empty
Gas completes heating with the heat exchange mode of cold air, and heating process is complicated, and heating process is slow, and the efficiency of heating surface is not
It is high.
Chinese utility model patent document CN200720037118 discloses a kind of dry using heat exchanger heating source impregnation
Dry machine heated air circulation device, including baking oven, wind-supplying mouth, hot-air system and dehumidification system, are provided with heat exchanger on wind-supplying mouth, heat
Exchanger is located at outside baking box, and the air outlet of heat exchanger is connected with the wind-supplying mouth of baking box, or heat exchanger is located in baking box, heat
The air inlet of exchanger is docked with the wind-supplying mouth of baking box.What i.e. the patent document was provided is a kind of using heat exchanger heating source impregnation
Drying machine heated air circulation device, is also that the new air in the outdoor of cold is heated by setting heat exchanger in wind-supplying mouth, so as to rise
The effect of the temperature of the cold new air of raising is arrived, but interior compensating ventilation cabinet has been heated with one kind disclosed in foregoing utility model patent document
Steel-aluminum structure laboratory hood system is similar, and the heat exchanger heating source drier hot-blast circulation equipment of dipping there is also and add
Thermal process is complicated, and heating process is slow, efficiency of heating surface problem not high.
In sum, the temperature of the cold new air in outdoor filled into laboratory hood how is improved, it is to avoid cause sliding door
Glass hazes or condenses, and improves the comfort in experimenter's experimentation, while the efficiency of heating surface can be improved as this area
One of problem demanding prompt solution.
Utility model content
In order to solve the above problems, the purpose of this utility model is to provide one kind to directly heat cold new air, add
The thermal efficiency laboratory hood with duct heater high.
To achieve the above object, the laboratory hood with duct heater that the utility model is provided, including cabinet, cabinet
Mend wind passage is inside provided with, is provided with cabinet for the benefit wind entrance that air is supplemented in mend wind passage, being set in mend wind passage
Electric additional thermal modules are equipped with, are filled into and is flowed through the air of mend wind passage from benefit wind entrance for heating.
Further, the inside of mend wind passage and it is provided with splitter with the relative place of wind entrance is mended.
Preferably, in mend wind passage, the both sides of splitter are respectively arranged with one group of additional thermal modules of electricity.
Further, electric additional thermal modules are fixed on the air draft cabinet panel of the both sides for mending wind entrance.
Preferably, electric additional thermal modules include heater element, mica insulation plate and support, and it is exhausted that heater element is wound in mica
On listrium, mica insulation plate is fixedly installed on support, and support is fixed on the air draft of the both sides for mending wind entrance by fixing device
On the panel of cabinet.
Further, electric additional thermal modules are externally connected to temperature sensor, the temperature for detecting air in mend wind passage
Degree.
Preferably, the laboratory hood with duct heater also include controller, controller respectively with temperature sensor and
The additional thermal modules electrical connection of electricity, the temperature for controlling electric additional thermal modules heating.
Further, controller includes display device, the temperature for showing air in mend wind passage.
Preferably, the laboratory hood with electric additional thermal also includes one or more wind-supplying mouth, wind-supplying mouth and benefit wind
Passage is communicated, for the air after being heated through electric additional thermal modules to be filled into the working chamber of laboratory hood.
Further, wind-supplying mouth is provided with the mesh grille for covering the wind-supplying mouth.
As above, the laboratory hood with duct heater provided by the utility model, is provided with electricity in mend wind passage
Additional thermal modules, are directly heated by electric additional thermal modules from the cold new air in outdoor that wind entrance is filled into is mended, and improve institute
The temperature of the outdoor new air of cold for filling into, so as to avoid causing the sliding door glass of laboratory hood to haze or condense, improves reality
The comfort tested in personnel's experimentation, and heating is direct, and heating process is quick, and the efficiency of heating surface is high, and heating effect is good, is worth
It is widely popularized and uses.
It is that the above of the present utility model can be become apparent, preferred embodiment cited below particularly, and with reference to accompanying drawing, make
Describe in detail as follows.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
The structural representation of the laboratory hood with duct heater that Fig. 1 is provided for one preferred embodiment of the utility model
Figure；
The top view of the laboratory hood with duct heater that Fig. 2 is provided for one preferred embodiment of the utility model；
The three-dimensional signal of the laboratory hood with duct heater that Fig. 3 is provided for one preferred embodiment of the utility model
Figure；
The laboratory hood with duct heater that Fig. 4 is provided for one preferred embodiment of the utility model without top
The partial enlarged drawing of mend wind passage；
The laboratory hood with duct heater that Fig. 5 is provided for the utility model another preferred embodiment without top
Mend wind passage partial enlarged drawing；
The electric additional heat of the laboratory hood with duct heater that Fig. 6 is provided for one preferred embodiment of the utility model
The structural representation of module.
Component label instructions
100 cabinets
200 mend wind entrance
300 splitters
400 mend wind passages
500 electric additional thermal modules
510 heater elements
520 mica insulation plates
530 supports
540 fixing devices
600 temperature sensors
Specific embodiment
Implementation method of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this theory
Content disclosed in bright book understands other advantages of the present utility model and effect easily.Although description of the present utility model will be tied
Preferred embodiment is closed to introduce together, but this feature for not representing this utility model is only limitted to the implementation method.On the contrary, knot
Close implementation method make utility model introduction purpose be in order to cover be possible to based on claim of the present utility model extend
Other selections or transformation for going out.Depth of the present utility model is understood in order to provide, will be comprising many specific in below describing
Details.The utility model can not also use these details to implement.Additionally, in order to avoid chaotic or fuzzy of the present utility model heavy
Point, some details will be omitted in the de-scription.
In addition, used in the following description " on ", D score, "left", "right", " top ", " bottom ", be based on the air draft
Locus when cabinet is by laboratory experiment librarian use and define, should not be construed as to limitation of the present utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the utility model provides a kind of row with duct heater
Mend wind passage 400 is provided with wind cabinet, including cabinet 100, cabinet 100, is provided with cabinet 100 for mend wind passage 400
The benefit wind entrance 200 of interior supplement air, is provided with electric additional thermal modules 500 in mend wind passage 400, for heating from benefit wind entrance
200 fill into and flow through the air of mend wind passage 400.
Laboratory hood in actual use, except by working chamber open front directly to filling into laboratory in working chamber
It is more then directly to be filled into working chamber outdoor air by air-makeup system outside interior air, thus, needed in laboratory hood
The mend wind passage that setting is flowed through for outdoor air.Mend wind passage can be that dividing plate is set in laboratory hood so as to be formed with cabinet
Hollow structure, such as set on the top of cabinet and form hollow knot at the top of dividing plate and the cabinet of cabinet or so width
Structure, the hollow structure is as mend wind passage, naturally it is also possible to by with laboratory hood side wall or bottom formed hollow structure come
Constitute mend wind passage.The mend wind passage for being formed by the top of cabinet, side wall or bottom opening is set, extraneous air is led to
Cross at these openings and fill into working chamber.
In this preferred embodiment, it is preferable that illustrated by taking the mend wind passage formed with cabinet top as an example.Due in reality
Border when using, directly fill into air in laboratory hood working chamber by mend wind passage for outdoor air, and in cold winter, this
The temperature for planting the outdoor air for directly filling into is general all in subzero, and in cold districts such as northeast, its temperature is even more and reaches
Subzero 10 degree, minus 20 degrees, it is even subzero 30 degree, during this sub-zero cold air directly filled into laboratory hood working chamber
The sliding door glass of laboratory hood is often caused to haze, condense afterwards, while the uncomfortable problem that experimenter tests can be also caused, very
Catch a cold, catch a cold to experimenter is likely to result in.Thus, as shown in Fig. 1 to Fig. 5, one preferred embodiment of the utility model
The laboratory hood with duct heater for being provided, is provided with mend wind passage 400 for heating filled into cold air
Electric additional thermal modules 500 so that it is electric during mend wind passage 400 is flowed through from the cold air that wind entrance 200 is filled into is mended
Additional thermal modules 500 are heated, in flowing to the working chamber of laboratory hood after heating again, so that finally being filled into from mend wind passage 400
Air in working chamber is no longer cold air, but heating after hot-air, it is to avoid cause the sliding door glass of laboratory hood haze or
Person condenses, and also avoids experimenter from touching the outdoor air of cold, improves the comfort of experimenter's experiment.
Further, as shown in Figure 4, one preferred embodiment of the utility model provided with duct heater
Laboratory hood in, the inside of mend wind passage 400, mend the relative place of wind entrance 200 and be provided with splitter 300.Here, splitter
300 are used to for the air filled into from benefit wind entrance 200 to be divided into two-way, it is flowed to the left and right sides of cabinet 100 respectively, and divide
Flow 300 may be disposed inside mend wind passage 400 Anywhere, and certain those skilled in the art will be understood that leads in benefit wind
Splitter 300 can be also not provided with road 400.In this preferred embodiment, it is preferable that splitter is set in mend wind passage 400
300, and it is positioned in the place relative with wind entrance 200 is mended so that the new air filled into through mending wind entrance 200 can be equably
Flowed to the left and right sides of cabinet 100.
Preferably, in the laboratory hood with duct heater that one preferred embodiment of the utility model is provided, mend
On wind passage 400, the both sides of splitter 300 be respectively arranged with one group of additional thermal modules 500 of electricity.
Here, in this preferred embodiment, it is preferable that the centre position that wind entrance 200 is arranged at the top of cabinet 100 will be mended,
Splitter 300 is preferably provided at and mends the relative place of wind entrance 200 simultaneously.Certainly, those skilled in the art will be understood that
Mend wind entrance 200 can also be arranged at the top of cabinet 100 the left side or the right or cabinet 100 other Anywhere.Tool
Body ground, as shown in Figure 1 to Figure 4 shown in, the hollow structure that mend wind passage 400 is and the top of cabinet 100 is formed mends wind entrance 200
The middle position at the top in outside cabinet 100 in the hollow structure is arranged at, is communicated with the air outside laboratory,
Air outside laboratory can be entered in the hollow structure, i.e. mend wind passage 400 by mending wind entrance 200, and be led to wind is mended
It is split in road 400 after piece 300 is shunted along passage both sides flowing to the left and right.Thus, in order that the cold sky of both sides flowing to the left and right
Gas can be heated, improve heating effect, the efficiency of heating surface, as shown in Figure 4, this preferred embodiment provided with air channel
The laboratory hood of heater is in mend wind passage 400, the left and right sides of splitter 300 is each provided with the additional thermal modules of electricity
500, it is respectively used to flow to the left side of mend wind passage 400 after heating is shunted through splitter 300 and flows to the sky on the right side of mend wind passage 400
Gas, so that can be heated from the outdoor cold gas for directly filling into of experiment, homogeneous heating, heating effect is good, heating
Efficiency high.
Certain those skilled in the art it will be understood that for the electric quantity of additional thermal modules 500 limitation only as excellent
Select embodiment to illustrate, i.e., the one additional heat of electricity only can be installed in the benefit wind porch for filling into outdoor air in mend wind passage 400
Module 500 carries out the heating of air.As shown in Figure 5, another preferred embodiment of the utility model provide with wind
The laboratory hood of road heater need to only install the additional thermal modules 500 of electricity to complete the heating of air in mend wind passage 400
Process.In addition, the electric additional thermal modules 500 that three or more than three can certainly be installed in mend wind passage 400 are complete
Into the heating process of air.
Preferably, in the laboratory hood with duct heater that one preferred embodiment of the utility model is provided,
The additional thermal modules 500 of electricity are fixed on the panel of the laboratory hood of the both sides for mending wind entrance 200, as shown in Figure 1 to Figure 3.Specifically
Ground, the heating end of electric additional thermal modules 500 is located in mend wind passage 400, while electric additional thermal modules 500 are relative with heating end
The other end is then fixedly installed on the panel of the laboratory hood of the both sides for mending wind entrance 200, that is, be fixedly installed in the outer of cabinet 100
Side so that dismounting, to install whole electric additional thermal modules 500 simpler, convenient, also to repair, change electric additional thermal modules 500
Provide a great convenience.
More specifically, as shown in Figure 6, one preferred embodiment of the utility model provided with duct heater
The electric additional thermal modules 500 of laboratory hood include heater element 510, mica insulation plate 520 and support 530, heater element 510 twines
It is around on mica insulation plate 520, mica insulation plate 520 is fixedly installed on support 530, support 530 is solid by fixing device 540
Due on the panel of the laboratory hood of the both sides for mending wind entrance 200.Here, because nichrome bare wire circle have high temperature strength it is high,
The material that cooled down again after long-term use will not become fragile, have the advantages that preferable heat resistance and corrosion resistance, in the present embodiment, heating
Element 510 is preferably by nichrome bare wire circle, and it is exhausted that heater element 510, i.e. nichrome bare wire circle are wound in into mica
On listrium 520, expand the contact area of nichrome bare wire circle and air in mend wind passage 400, the efficiency of heating surface is improved, with good
Good heating effect.Further, as shown in Figure 4, the mica insulation plate 520 for being wound with nichrome bare wire circle is fixedly mounted
In on support 530, while support 530 is fixed on the panel of the laboratory hood of the both sides for mending wind entrance 200 by fixing device 540
On, conveniently remove replacing, maintenance or clean.In addition, fixing device 540 can be other any energy such as screw, bolt, rivet
The fixture that support 540 is fixed in cabinet 100.
Although the cold gas in for filling into laboratory hood working chamber from experiment outdoor, in order to prevent from causing the shifting of laboratory hood
Door glass hazes, condenses, also to prevent from causing uncomfortable problem in experimenter's experimentation, it is necessary to outdoor to being filled into
Cold gas are heated.But the heating-up temperature for air in mend wind passage 400 is not to say that the higher the better, such as
Say, some experiments can not be carried out in excessive temperature, and if the outside air temperature for now filling into is too high, certainly will
Experimental result, even the carrying out of influence experiment can be influenceed；Say for another example, if temperature is too high, experimenter can be caused
Feel too hot or cause the uncomfortable situation such as hot to occur.Certainly if heating dynamics is inadequate, then can cause to fill into
Cold gas heating effect is not obvious, can still cause the sliding door glass of laboratory hood to haze, condense, and causes experimenter's experimentation
In uncomfortable problem, such as the problems such as catching a cold, catch a cold.It is then desired to enter to the heating-up temperature of the air in mend wind passage 400
The corresponding detection of row and control, it is too high or too low to keep away temperature without heating, bring obstruction to experimentation or cause reality
Test uncomfortable in personnel's experimentation.To solve the above problems, what one preferred embodiment of the utility model was provided carries
The electric additional thermal modules 500 of the laboratory hood of duct heater are externally connected to temperature sensor 600, for detecting mend wind passage
The temperature of the air of flowing in 400, prevent it is heat-treated after air temperature it is too high or too low, so as to foregoing institute occur
The various influences experiment stated is carried out, causes the uncomfortable problem of experimenter.
Further, the laboratory hood with duct heater also include controller, controller respectively with TEMP
Device 600 and electric additional thermal modules 500 are electrically connected, the temperature for controlling the electric heating of additional thermal modules 500.Meanwhile, on controller
Display device is provided with, the temperature for showing air in mend wind passage 400.Here, controller can be according to experimenter's
Need to carry out the reservation temperature value needed for pre-seting for required temperature, i.e. experimenter can set.Temperature sensor 600 will be examined
The temperature signal of the air in mend wind passage 400 for measuring passes to controller, and can be shown by the display device on controller
Current temperature value is shown, the reservation temperature value that controller sets current temperature value with experimenter is compared, if currently
Temperature value is equal with temperature value is subscribed, or difference is within the acceptable range, then it does not send to electric additional thermal modules 500 and refers to
Order, i.e., do not control electric additional thermal modules 500 to heat up or lower the temperature；If the current temperature value degree lower and low than subscribing temperature value
Acceptable scope is exceeded, then it automatically controls electric additional thermal modules 500 and carries out hyperthermic treatment, to improve mend wind passage 400
The temperature of interior air, so as to reach the temperature that experimenter wants；If likewise, current temperature value than subscribe temperature value it is high,
And degree high has exceeded acceptable scope, then it automatically controls electric additional thermal modules 500 and carries out cooling treatment, to reduce benefit
The temperature of the air in wind passage 400.It is of course also possible to by experimenter by controller by the sky in mend wind passage 400
The temperature control of gas in its desired scope, such as, in display device show Current Temperatures it is higher or relatively low if,
Experimenter can be adjusted manually, to reduce or rise high-temperature.Thus, the laboratory hood that this preferred embodiment is provided leads to
Cross the heating-up temperature that temperature sensor 600 and controller are set to control the air in mend wind passage 400, it is to avoid heating-up temperature mistake
It is high or too low, cause to hinder or uncomfortable to experimentation or experimenter, in improve experimenter's experimentation
Comfort level.
Further, in this preferred embodiment, one or more wind-supplying mouth, wind-supplying mouth and benefit are provided with cabinet 100
Wind passage 400 is communicated, for the air after being heated through electric additional thermal modules 500 to be filled into the working chamber of laboratory hood.Further
Ground, mesh grille is provided with wind-supplying mouth, for disperse through the wind-supplying mouth blow out benefit general mood stream, it is ensured that from wind-supplying mouth to
Uniform and stable benefit general mood stream is filled into laboratory hood working chamber.
The disclosed laboratory hood with duct heater of the utility model, is provided with electric additional hot-die in mend wind passage
Block, is directly heated from the cold new air in outdoor that wind entrance is filled into is mended, so as to avoid the row of causing by electric additional thermal modules
The sliding door glass of wind cabinet hazes or condenses, and improves the comfort in experimenter's experiment, and heating is direct, heating process
Quickly, the efficiency of heating surface is high, and heating effect is good, should be widely promoted and uses.
In sum, the utility model is provided above-described embodiment only illustrative principle of the present utility model and its work(
Effect, not for limitation the utility model.Any person skilled in the art all can without prejudice to it is of the present utility model spirit and
Under the scope of, modifications and changes are carried out to above-described embodiment.Therefore, those of ordinary skill in the art is not taking off such as
All equivalent modifications completed under the spirit disclosed in the utility model with technological thought or change, should be new by this practicality
The claim of type is covered.
Claims (10)
1. a kind of laboratory hood with duct heater, including cabinet, is provided with mend wind passage, the cabinet in the cabinet
On be provided with the mend wind passage supplement air benefit wind entrance, it is characterised in that in the mend wind passage set
There are electric additional thermal modules, fill into and flow through the air of the mend wind passage from the benefit wind entrance for heating.
2. the laboratory hood with duct heater according to claim 1, it is characterised in that in the mend wind passage
It is internal and the place relative with the benefit wind entrance is provided with splitter.
3. the laboratory hood with duct heater according to claim 2, it is characterised in that in the mend wind passage
The upper, both sides of the splitter are respectively arranged with electric additional thermal modules described in a group.
4. the laboratory hood with duct heater according to claim 3, it is characterised in that the electric additional thermal modules
It is fixed on the panel of the laboratory hood of the both sides of the benefit wind entrance.
5. the laboratory hood with duct heater according to claim 4, it is characterised in that the electric additional thermal modules
Including heater element, mica insulation plate and support, the heater element is wound on the mica insulation plate, the mica insulation
Plate is fixedly installed on the support, and the support is fixed on the air draft of the both sides of the benefit wind entrance by fixing device
On the panel of cabinet.
6. the laboratory hood with duct heater according to claim 1, it is characterised in that the electric additional thermal modules
Temperature sensor is externally connected to, the temperature for detecting air in the mend wind passage.
7. the laboratory hood with duct heater according to claim 6, it is characterised in that described with air channel heating
The laboratory hood of device also includes controller, and the controller is electrically connected with the temperature sensor and the electric additional thermal modules respectively
Connect, the temperature for controlling the electric additional thermal modules heating.
8. the laboratory hood with duct heater according to claim 7, it is characterised in that the controller includes aobvious
Showing device, the temperature for showing air in the mend wind passage.
9. the laboratory hood with duct heater according to claim 1, it is characterised in that the laboratory hood also includes
One or more wind-supplying mouth, the wind-supplying mouth is communicated with the mend wind passage, for that will be heated through the electric additional thermal modules
Air afterwards is filled into the working chamber of the laboratory hood.
10. the laboratory hood with duct heater according to claim 9, it is characterised in that the wind-supplying mouth is set
There is the mesh grille for covering the wind-supplying mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253450.2U CN206253434U (en) | 2016-11-22 | 2016-11-22 | A kind of laboratory hood with duct heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253450.2U CN206253434U (en) | 2016-11-22 | 2016-11-22 | A kind of laboratory hood with duct heater |
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| Publication Number | Publication Date |
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| CN206253434U true CN206253434U (en) | 2017-06-16 |
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| CN201621253450.2U Active CN206253434U (en) | 2016-11-22 | 2016-11-22 | A kind of laboratory hood with duct heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080385A (en) * | 2016-11-22 | 2018-05-29 | 倚世节能科技（上海）有限公司 | A kind of laboratory hood with duct heater |
| CN111069218A (en) * | 2019-12-23 | 2020-04-28 | 北京汉昌绿源环保工程有限公司 | Mechanical air supply and exhaust integrated VAV (vacuum air volume) ventilation cabinet |
| CN114011831A (en) * | 2021-12-07 | 2022-02-08 | 上海卫蓝节能科技有限公司 | Walk-in type exhaust cabinet |
-
2016
- 2016-11-22 CN CN201621253450.2U patent/CN206253434U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080385A (en) * | 2016-11-22 | 2018-05-29 | 倚世节能科技（上海）有限公司 | A kind of laboratory hood with duct heater |
| CN111069218A (en) * | 2019-12-23 | 2020-04-28 | 北京汉昌绿源环保工程有限公司 | Mechanical air supply and exhaust integrated VAV (vacuum air volume) ventilation cabinet |
| CN111069218B (en) * | 2019-12-23 | 2021-08-17 | 北京汉昌绿源环保工程有限公司 | Mechanical air supply and exhaust integrated VAV (vacuum air volume) ventilation cabinet |
| CN114011831A (en) * | 2021-12-07 | 2022-02-08 | 上海卫蓝节能科技有限公司 | Walk-in type exhaust cabinet |
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