CN106907895A - A kind of New-style refrigeration house pressure balance window - Google Patents
A kind of New-style refrigeration house pressure balance window Download PDFInfo
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- CN106907895A CN106907895A CN201710250729.8A CN201710250729A CN106907895A CN 106907895 A CN106907895 A CN 106907895A CN 201710250729 A CN201710250729 A CN 201710250729A CN 106907895 A CN106907895 A CN 106907895A
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- pressure balance
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- refrigeration house
- air
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 57
- 238000012546 transfer Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 229920002635 polyurethane Polymers 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 238000007710 freezing Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 208000001953 Hypotension Diseases 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 208000021822 hypotensive Diseases 0.000 description 2
- 230000001077 hypotensive effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/10—Buildings forming part of cooling plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/047—Pressure equalising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
Abstract
A kind of New-style refrigeration house pressure balance window is highly H, and width is W, and thickness is T；A kind of novel pressure window for keeping pressure balance includes end cap, longitudinal baffle, lateral partitions, air duct, silica gel piece, drain bar.A kind of New-style refrigeration house pressure balance window of the present invention carries out insulation due to having abandoned the electrical heating antifreezing mode of traditional freezer pressure balance window using air itself thermal resistance, and product integral heat insulation performance is identical with refrigeration storage plate.Because it is not required to electrical heating, without any energy consumption, so energy-saving effect is notable.While overall structure mechanical moving component, in the absence of the possibility of the failure because of drive failures；Make storehouse external and internal pressure all the time in poised state, thus reliable working operation using unimpeded gas channel.
Description
Technical field
The invention belongs to freezer window for keeping pressure balance technical field, it is related to a kind of window for keeping pressure balance for adjusting freezer external and internal pressure, especially relates to
And a kind of mechanical moving component, the window for keeping pressure balance of not power consumption.
Background technology
For closed cold storage, from The Ideal-Gas Equation：Air is down to 31 from the appearances such as 32 DEG C in storehouse
DEG C, pressure is down to 100992 Pa, the Pa of Amplitude of Hypotensive 332 by 101325 Pa；- 18 DEG C of design temperature is such as further reduced to, is then dropped
Pressure amplitude degree is up to 84714 Pa.Although storehouse can not possibly be completely closed, there will not be so big Amplitude of Hypotensive, storehouse insulation is enclosed
The pressure difference that protection structure can bear is limited, needs to be balanced using freezer window for keeping pressure balance for this during cooling, defrosting because freezer is inside and outside
Storehouse inside and outside differential pressure caused by air temperature fluctuations, it is to avoid the outside bulging of storehouse or inside collapse, is all kinds of freezers, especially low temperature
The indispensable equipment in storehouse [1-3].
Multiple window for keeping pressure balance need to be often installed, small storehouse also at least installs one, especially between one in the library in large-scale Conventional cryogenic storehouse
In the case where construction of cold storage level is increasingly improved, preferably, can window for keeping pressure balance normally run and be directly connected to the seal of storehouse
The safety of the library and Ku Nei staff and article.
Current window for keeping pressure balance is mainly made up of two parts：1 louvered rotates aeration structure, is typically designed to bilateral flow,
Import and export passage independently of one another, in order to avoid cause channel blockage, disequilibrium function during ventilation；2nd, antifreeze heating wire, it is therefore an objective to keep away
Exempt from rotational structure to be frozen and cannot act.
In actual motion, said structure is possible to break down, and causes storehouse to there is hidden danger in terms of safe operation.Such as
Rotational structure is stuck or when power supply, heating wire failure, gas channel is possible to be blocked because of frosting, disequilibrium function.This
A little failures are combined with other unfavorable service conditions, have caused the serious consequence that a lot of grim strategies rupture or storehouse caves in.
In addition to potential safety hazard, louver structure directly connects gas inside and outside storehouse, and loss of refrigeration capacity is larger, and window for keeping pressure balance is without heat insulation measure,
By electrical heating antifreezing, increase the operation energy consumption of freezer.Commonly using heating wire specification is：Freezing is used with every group of at least 40 W, refrigeration
Every group of at least 25 W, temperature is relatively low or storehouse volume is larger such as in storehouse, then need accordingly to increase the area and quantity of window for keeping pressure balance, this
Energy consumption will be further increased.
At present, the achievement in research of this respect concentrates on the improvement of mechanical structure, is conceived to the property for improving mechanical rotation structure
Can, there is no the product of not power consumption to come out, also have no related scientific research paper and patent.There is presently no mechanical moving component, no
The window for keeping pressure balance of power consumption is published.
The content of the invention
A kind of present situation of the present invention for existing freezer window for keeping pressure balance, it is proposed that New-style refrigeration house pressure balance window.
One or more air flow channel is constructed in window for keeping pressure balance by housing and polylith dividing plate, outer space in storehouse is directly connected
Gas, reaches the purpose of balance pressure and insulation.Specifically technical scheme is：
A kind of New-style refrigeration house pressure balance window is highly H, and width is W, and thickness is T；A kind of novel pressure window for keeping pressure balance include end cap,
Longitudinal baffle, lateral partitions, air duct, silica gel piece, drain bar.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 100 mm.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 150 mm.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 200 mm.
Staggered 8-12 blocks lateral partitions between every two pieces of longitudinal baffles.
Staggered 8-12 blocks lateral partitions between longitudinal baffle and housing.
Silica gel piece is opened when the inside and outside differential pressure of freezer is higher than 50 Pa, is maintained the circulation of air.
Drain bar and the angle that window for keeping pressure balance bottom is in 5-15 degree, inner side is slightly higher, outside is slightly lower, is easy to flow out what is be likely to form
Condensed water.
Air ports are furnished with fly net and condensation water collection pipe.
A kind of electrical heating of the New-style refrigeration house pressure balance window of the present invention due to having abandoned traditional freezer pressure balance window is prevented
Jelly mode, insulation is carried out using air itself thermal resistance, and product integral heat insulation performance is identical with refrigeration storage plate.Because it is not required to electricity
Heating, without any energy consumption, so energy-saving effect is notable.While overall structure mechanical moving component, in the absence of because of drive failures
And the possibility of failure；Make storehouse external and internal pressure all the time in poised state using unimpeded gas channel, thus work operation can
Lean on.
Brief description of the drawings
Fig. 1 is a kind of shaft side figure of New-style refrigeration house pressure balance window of the invention；
In Fig. 1, H, height；W, width；T, thickness；
Fig. 2 is a kind of top view of novel pressure window for keeping pressure balance of the invention；
In Fig. 2,1, end cap；2nd, longitudinal baffle；3rd, lateral partitions；4th, air duct；5th, silica gel piece；6th, drain bar
Fig. 3 is a kind of front view of novel pressure window for keeping pressure balance of the invention；
In Fig. 3,5, silica gel piece；
Fig. 4 is a kind of left view of novel pressure window for keeping pressure balance of the invention；
In Fig. 4,6, drain bar.
Specific embodiment
For the operating process for making present invention realization is easy to understand with creation characteristic, with reference to specific embodiment,
The present invention is expanded on further.
A kind of New-style refrigeration house pressure balance window is highly H, and width is W, and thickness is T；A kind of novel pressure window for keeping pressure balance includes
End cap 1, longitudinal baffle 2, lateral partitions 3, air duct 4, silica gel piece 5, drain bar 6.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 100 mm.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 150 mm.
ThicknessTIt is identical with the thickness of combination freezer polyurethane heat-insulation sandwich plate, size is 200 mm.
Staggered 8-12 blocks lateral partitions between every two pieces of longitudinal baffles.
Staggered 8-12 blocks lateral partitions between longitudinal baffle and housing.
Silica gel piece is opened when the inside and outside differential pressure of freezer is higher than 50 Pa, is maintained the circulation of air.
Drain bar and the angle that window for keeping pressure balance bottom is in 5-15 degree, inner side is slightly higher, outside is slightly lower, is easy to flow out what is be likely to form
Condensed water.
Air ports are furnished with fly net and condensation water collection pipe.
First, the air flow resistance requirement of window for keeping pressure balance and thermal requirements
The requirement of 1.1 air flow resistances
The inside and outside differential pressure that the non-regulation grim strategy of Code for design of coldstorages can bear, therefore with reference to multiple air-conditioned cold store both at home and abroad
The air-tightness detection method of standard, the malleation that each standard is applied in air-conditioned cold store when air-tightness is detected is different, is 100
Pa~300 Pa[8].To improve design result reliability, the pressure difference that storehouse building enclosure can bear is defined as 100 Pa, profit
Storehouse inside and outside differential pressure is set to be not higher than 100 Pa with window for keeping pressure balance.The pressure difference is the power of storehouse inner air and outer air circulation, therefore, the knot of window for keeping pressure balance
Structure is it is ensured that its air flow resistance is not higher than 100 Pa.
1.2 thermal requirements
To meet heat-insulating property requirement, the overall heat transfer coefficient of window for keeping pressure balanceKAt least should be suitable with the heat transfer coefficient of cold storage.Ginseng
According to《JB/T 9061-1999 combine freezer》Regulation:The heat transfer coefficient of freezing and refrigeration Freezing roomK≤0.26 W/(m 2 .K) [1]。
The structure of window for keeping pressure balance is it is ensured that its overall heat transfer coefficient meets this requirement.
2nd, the structure of window for keeping pressure balance
2.1 architectural overviews
The cross section of window for keeping pressure balance is generally square or rectangle, and sectional dimension depends on air mass flow and design temperature in use；
ThicknessTPreferably be designed as with combination freezer polyurethane heat-insulation sandwich plate thickness it is identical, common-size has 100 mm, 150 mm, 200
Mm etc..Window for keeping pressure balance is made up of such as lower component：1st, housing；2nd, one or more internal longitudinal baffle；3rd, every two pieces of longitudinal baffles
（Or longitudinal baffle and housing）Between staggered polylith lateral partitions.These parts form independent of each other in window for keeping pressure balance
Some continuous S-shaped air flow channels.For ease of the condensed water that outflow is likely to form, there is small gradient runner bottom surface, interior
Side is slightly higher, outside is slightly lower.Air ports are furnished with fly net and condensation water collection pipe.Accompanying drawing is flat with two independent flow passages
Weighing apparatus window schematic diagram.
2.2 air flow resistances
Determine the flow resistance in window for keeping pressure balance air flow channel,Need to know air velocity therein, be that this should first determine sky again
Air-flow logical required time and the volume of air circulation.To ensure design result reliability, should choose rate of air circulation it is big and when
Between the occasion to be sought quickness, be with reference to for this《JB/T 9061-1999 combine freezer》To empty storehouse temperature fall time（Air cooling storehouse is from environment
Temperature be down to design temperature needed for time）Regulation.Freezer non-NULL storehouse during actual motion, and cooling extent is much smaller than above-mentioned mistake
Journey, so the process is unfavorable operating mode, can guarantee that the reliability of design result.
Air circulation volume is relevant with first, the whole state and storehouse volume of the inside and outside air in storehouse, can be by calculating, letter
Following hypothesis is done for the sake of change：1st, air is perfect gas；2nd, the library is rigid closed structure, and air circulates only at window for keeping pressure balance；
3rd, outside ambient air state is constant：Atmospheric pressure isB, temperature isT 1 ；4th, air initial temperature and pressure and environment shape in storehouse
State is consistent；5th, change of the atmospheric density with pressure and temperature is ignored.Then, temperature changing process terminate and storehouse external and internal pressure again
During balance, volume of air is still in storehouseV, pressure restPosesB, temperature is changed intoT 2 , quality is changed into（m+△m）, then air
Just, whole state meets（1）、（2）：
(1)
(2)
Simultaneous（1）、（2）△mFor：
(3)
According to condition 5 is assumed, the volume of ventilating air is obtained△V:
(4)
And then the air velocity in runner can be obtainedv：
（5）
Should ensure that air is in laminar condition in runner by appropriate structure, therefore air-pressure drop can be by public affairs caused by on-way resistance
Formula（6）Calculate[9]：
（6）
Elbow of the local resistance in air flow channel, including：1st, two 90 ° of elbows at air import and export, each is curved
The coefficient of partial resistance of head takes 1.15；2nd, window for keeping pressure balance dividing plate sum（Including inside and outside side end cap）FornWhen, it is internal（n-2）It is individual
180 ° of elbows, the coefficient of partial resistance of each elbow takes 4.5[9].Pressed by pressure drop caused by local resistance（7）Calculate：
（7）
（6）、（7）It is added to obtain air-pressure drop in window for keeping pressure balance：
（8）
In above formula,B - environment atmospheric pressure,Pa；
V - storehouse volume,m 3 ；
△V - air circulation volume,m 3 ；
△m - air circulation quality,kg；
mOriginal air quality in-storehouse,kg；
T 1 、T 2 - ambient air temperature（Air initial temperature in storehouse）, air finishing temperature in storehouse,K；
R- gas constant,287J/(kg·K）；
v - air velocity,m/s；
s- air flow channel sectional area,m 2 ；
d - air flow channel equivalent diameter,m；
t- air circulation the time, h；
△p - air-pressure drop,Pa；
l- air flow channel length,m；
ρ- atmospheric density, 1.2 are taken for the sake of simplifyingkg /m 3 ；
Re- Reynolds number；
ξ 1 , ξ 2 - the 90 ° and 180 ° coefficient of partial resistances of elbow；
n —The dividing plate sum of window for keeping pressure balance（Containing interior outer end cap）.
The overall heat transfer coefficient of 2.3 window for keeping pressure balance
When air circulates in window for keeping pressure balance, i.e., when window for keeping pressure balance is in running order, heat convection of the air in runner is than non-work
Make state strong, cause integral heat insulation ability less than off working state, thus can be under an evaluation work state overall heat transfer coefficient.
By taking Freezing room window for keeping pressure balance as an example, the determination method of each several part convection transfer rate is：Between inner side end cap and Ku Nei air
Convection transfer rateα i Reference《GB 50072-2010 Code for design of coldstorages》Between being provided with the freezer sorage of air blast freezing plant,
Take 12W/(m 2 .K)；Convection transfer rate between outside end cap and storehouse external environment airα o With reference to without protection from the wind roofing, outer
Face of wall, takes 23W/(m 2 .K)；The convection transfer rate of internal partition both sidesα m With reference to cold without air-blast device, 8 are takenW/(m 2 .K) [3].Separator material is thermal conductivityλIt is 0.29W/(m.K)、ThicknessσIt is the polytetrafluoroethylene plastic plate material of 1mm, then
Treat window for keeping pressure balance as an entirety, its heat transfer coefficientKFor：
（9）
In addition, window for keeping pressure balance is in a non-operative state, although the stagnation pressure dynamic balance of storehouse inner air and outer air, but steam partial pressure is different, ring
Vapor in the air of border will enter in storage via air flow channel, somewhere temperature can be less than dew-point temperature in window for keeping pressure balance.But water
Devaporation institute chilling requirement cannot condense much larger than the cold that heat conduction is transmitted, therefore most vapor, but can gradually ooze
In storage, a small amount of condensation can flow to outdoor along inclined bottom surface.
3rd, example is designed
Freezer window for keeping pressure balance is devised according to mentioned above principle, design parameter is shown in Table 1.
The window for keeping pressure balance design parameter table of table 1
| Parameter | Unit | Quantity |
| 1000 | ||
| 32 | ||
| -18 | ||
| 4.5 | ||
| 200 | ||
| 250 | ||
| 150 | ||
| 1 | ||
| Dividing plate quantity（End cap containing both sides） | 17 | |
| Runner quantity | 4 | |
| 90 ° of elbow coefficient of partial resistances | 1.15 | |
| 180 ° of elbow coefficient of partial resistances | 4.5 | |
| 23 | ||
| 12 | ||
| 8 | ||
| 0.29 |
Pressure being obtained according to above-mentioned formula and being reduced to 94 Pa, overall heat transfer coefficient is 0.24W/(m 2 .K), can meet design requirement.
A kind of New-style refrigeration house pressure balance window of the present invention adds due to having abandoned the electricity of traditional freezer pressure balance window
The antifreeze mode of heat, insulation is carried out using air itself thermal resistance, and product integral heat insulation performance is identical with refrigeration storage plate.Because of it not
Electrical heating is needed, without any energy consumption, so energy-saving effect is notable.While overall structure mechanical moving component, in the absence of because of transmission
The possibility of failure and failure；Make storehouse external and internal pressure all the time in poised state, thus work fortune using unimpeded gas channel
Row is reliable.
Claims (9)
1. a kind of New-style refrigeration house pressure balance window, it is characterised in that：A kind of New-style refrigeration house pressure balance window is highly H, and width is
W, thickness is T；A kind of novel pressure window for keeping pressure balance includes end cap（1）, longitudinal baffle（2）, lateral partitions（3）, air duct（4）、
Silica gel piece（5）, drain bar（6）.
2. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Thickness T be with combine freezer gather
The thickness of urethane heat-insulation sandwich plate is identical, and size is 100 mm.
3. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Thickness T be with combine freezer gather
The thickness of urethane heat-insulation sandwich plate is identical, and size is 150 mm.
4. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Thickness T be with combine freezer gather
The thickness of urethane heat-insulation sandwich plate is identical, and size is 200 mm.
5. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Every two pieces of longitudinal baffles（2）It
Between staggered 8-12 blocks lateral partitions（3）.
6. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Longitudinal baffle（2）With housing it
Between staggered 8-12 blocks lateral partitions（3）.
7. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Interior external pressure of the silica gel piece in freezer
Opened when difference is higher than 50 Pa, maintained the circulation of air.
8. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Drain bar is in window for keeping pressure balance bottom
The angle of 5-15 degree, inner side is slightly higher, outside is slightly lower.
9. a kind of New-style refrigeration house pressure balance window as claimed in claim 1, it is characterised in that：Air ports are furnished with fly net
And condensation water collection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250729.8A CN106907895A (en) | 2017-04-18 | 2017-04-18 | A kind of New-style refrigeration house pressure balance window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250729.8A CN106907895A (en) | 2017-04-18 | 2017-04-18 | A kind of New-style refrigeration house pressure balance window |
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| Publication Number | Publication Date |
|---|---|
| CN106907895A true CN106907895A (en) | 2017-06-30 |
Family
ID=59210144
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| CN201710250729.8A Pending CN106907895A (en) | 2017-04-18 | 2017-04-18 | A kind of New-style refrigeration house pressure balance window |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435049A (en) * | 2019-01-14 | 2020-07-21 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN115371334A (en) * | 2022-08-19 | 2022-11-22 | 珠海格力电器股份有限公司 | Balance system of double-temperature refrigeration house, control method of balance system and double-temperature refrigeration house |
| US11732950B2 (en) | 2021-04-26 | 2023-08-22 | Electrolux Home Products, Inc. | Pressure relief jumper drain for an appliance |
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2017
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| EP1014017A2 (en) * | 1998-12-22 | 2000-06-28 | Merloni Elettrodomestici S.p.A. | A pressure-balancing valve, fitted with a means of protection against low temperatures, for cold-storage rooms |
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| CN205957584U (en) * | 2016-07-19 | 2017-02-15 | 汕头市春叶新材料环保有限公司 | Make interior air conditioning uniform flow's of freezer baffle |
| CN106500433A (en) * | 2016-12-14 | 2017-03-15 | 天津市天商冰源科技发展有限公司 | A kind of freezer air pressure balancer |
| CN206709480U (en) * | 2017-04-18 | 2017-12-05 | 上海海洋大学 | Air heat resistance type freezer pressure balance window |
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| CN111435049A (en) * | 2019-01-14 | 2020-07-21 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| US11732950B2 (en) | 2021-04-26 | 2023-08-22 | Electrolux Home Products, Inc. | Pressure relief jumper drain for an appliance |
| CN115371334A (en) * | 2022-08-19 | 2022-11-22 | 珠海格力电器股份有限公司 | Balance system of double-temperature refrigeration house, control method of balance system and double-temperature refrigeration house |
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Application publication date: 20170630 |