CN105783380A - Air pressure balancing device and refrigeration device - Google Patents
Air pressure balancing device and refrigeration device Download PDFInfo
- Publication number
- CN105783380A CN105783380A CN201610224330.8A CN201610224330A CN105783380A CN 105783380 A CN105783380 A CN 105783380A CN 201610224330 A CN201610224330 A CN 201610224330A CN 105783380 A CN105783380 A CN 105783380A
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- Prior art keywords
- pipe
- air
- storeroom
- balancing device
- pressure balancing
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Classifications
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- 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
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- 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
- F25D21/04—Preventing the formation of frost or condensate
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- 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
- F25D23/00—General constructional features
- F25D23/10—Arrangements for mounting in particular locations, e.g. for built-in type, for corner type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses an air pressure balancing device and a refrigeration device, relates to the technical field of refrigeration, and aims to solve the problems that in the prior art, the interior of the refrigeration device frosts and the energy consumption is increased due to air pressure balancing. The air pressure balancing device is used for balancing the air pressure inside and outside a storage chamber of the refrigeration device, and comprises a communication tube used for communicating with the interior and exterior of the storage chamber, and a core tube arranged inside the communication tube, wherein one end of the core tube is used for communicating with the exterior of the storage chamber, and the other end of the core tube is closed; lateral air holes are formed in the side wall of the core tube; an elastic tube is arranged on the side wall of the core tube in a sleeving manner; the elastic tube can seal the lateral air holes; and when the air pressure outside the storage chamber is higher than the inside air pressure, and the inside and outside air pressure difference reaches a preset value, the air outside the storage chamber can jack open the elastic tube through the lateral air holes and enters the storage chamber through the space between the elastic tube and the side wall of the core tube. The air pressure balancing device is used for adjusting the inside and outside air pressure of the refrigeration device.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of air-pressure balancing device and refrigerating plant.
Background technology
At present, the refrigerating plant such as refrigerator or refrigerator freezes due to its inner chamber, can store food in any season, more and more be used by people.Along with improving constantly of production technology level, the bore seal of refrigerating plant is greatly improved, but, after refrigerating plant freezes a period of time, because in it, cavity temperature declines, air pressure inside also can decline therewith, at this moment, atmospheric pressure forms pressure differential more than the air pressure of refrigerating plant inner chamber, this pressure differential acts on the door of refrigerating plant, now, when opening refrigerator door, need to overcome the suction of pressure differential and door seal, user is made to open the door relatively elaborate, especially the door opened from above, also need to overcome self gravitation, easily occur that the phenomenon that refrigerator door is not opened occurs.
Existing solution refrigerator door is difficult to the method for problem of opening as shown in Figure 1, disclose a kind of refrigerator structure, including casing 01 and door body 02, strip of paper used for sealing 03 it is provided with between casing 01 and door body 02, also include the passage 04 being located between strip of paper used for sealing 03 and door body 02, the inner chamber of refrigerator is in communication with the outside by passage 04, to reach the purpose of balanced system device for cooling external and internal pressure, makes refrigerator door 03 be easier to open.
But, such scheme exists problems with, owing to the inner chamber of refrigerating plant connects with the external world, extraneous damp-heat air can enter inner chamber always, and on the one hand, cavity temperature can raise, and refrigerating plant needs persistently refrigeration to reduce interior cavity temperature, add the energy consumption of refrigerating plant, on the other hand, extraneous damp-heat air enters inner chamber, can cause inner chamber frosting or evaporimeter frosting.Concrete, for direct-cooling type refrigerating plant, when extraneous damp-heat air enters inner chamber, refrigerating plant inner chamber frosting can be made after running into inner chamber cold air, user is needed manually to defrost, for air cooling refrigeration device, due to the entrance of damp-heat air, cause that circulating cold air is accelerated, and then evaporimeter frosting, accordingly, it would be desirable to increase frequency or the time of vaporizer defrosting, defrosting is generally adopted electric energy mode at present, directly increases energy resource consumption.
Summary of the invention
Embodiments of the invention provide a kind of air-pressure balancing device and refrigerating plant, to solve prior art causes frosting inside refrigerating plant due to balanced system device for cooling inner and outer air pressure, and the problem that energy consumption rises.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of air-pressure balancing device, for the air pressure inside and outside balanced system device for cooling storeroom, including the communicating pipe for connecting inside and outside storeroom and be arranged at the core pipe in described communicating pipe, one end of described core pipe is for the ft connection with described storeroom, the other end is closed, the sidewall of described core pipe offers lateral pore, the sidewall sheath of described core pipe is provided with elastic tube, described lateral pore can be blocked by described elastic tube, when the air pressure outside described storeroom is more than internal air pressure, and inner and outer air pressure difference is when reaching preset value, gas outside described storeroom can back down described elastic tube by described lateral pore, and enter in described storeroom between the sidewall by described elastic tube and described core pipe.
The air-pressure balancing device that the embodiment of the present invention provides, owing to being provided with the communicating pipe that will connect inside and outside storeroom, and it is arranged at the core pipe in described communicating pipe, core caliber is to having lateral pore, and is arranged with elastic tube on core pipe, when storeroom inner and outer air pressure is identical, lateral pore on core pipe is blocked by elastic tube, stop airflow inside and outside storeroom, refrigerating plant will not frosting, increase energy consumption；When the air pressure outside storeroom more than internal air pressure and inner and outer air pressure is poor reach preset value time, gas outside storeroom backs down elastic tube by lateral pore, and by entering in storeroom between the sidewall of elastic tube and core pipe, and then realizing storeroom inside and outside air pressure balance, the door body of refrigerating plant can normally be opened.Because when storeroom inner and outer air pressure difference reaches preset value, outside gas just can strut elastic tube and enter in described storeroom, therefore, the passage of barometric control unit is that intermittence is made, compared to existing technology, extraneous hot-air will not continue in storeroom, it is therefore prevented that the internal frosting of refrigerating plant, reduces the energy consumption of refrigerating plant.
On the other hand, the embodiment of the present invention also provides for a kind of refrigerating plant, including storeroom and for opening or close the door body of described storeroom, also includes above-mentioned air-pressure balancing device.
The refrigerating plant that the embodiment of the present invention provides, owing to being provided with air-pressure balancing device, storeroom inner and outer air pressure can be balanced, and the passage of barometric control unit is that intermittence is made, compared to existing technology, extraneous hot-air will not continue in storeroom, it is therefore prevented that the internal frosting of refrigerating plant, reduces the energy consumption of refrigerating plant.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of refrigerator structure schematic diagram of prior art；
The structural representation of the air-pressure balancing device that Fig. 2 provides for the embodiment of the present invention one；
The structural representation of the air-pressure balancing device that Fig. 3 provides for the embodiment of the present invention two；
The decomposition texture schematic diagram of the air-pressure balancing device that Fig. 4 provides for the embodiment of the present invention two；
Fig. 5 is the structural representation of embodiment of the present invention refrigerating plant；
Fig. 6 is the structural representation at the embodiment of the present invention refrigerating plant back side；
Fig. 7 is the structural representation that in embodiment of the present invention refrigerating plant, air-pressure balancing device is arranged in door body.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present invention one air-pressure balancing device and refrigerating plant are described in detail.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
A kind of air-pressure balancing device that the embodiment of the present invention provides, as shown in Figure 2, for the air pressure inside and outside balanced system device for cooling storeroom, it is characterized in that, including for the communicating pipe 31 connected inside and outside storeroom 1 and the core pipe 32 being arranged in communicating pipe 31, one end of core pipe 32 is for the ft connection with storeroom 1, the other end is closed, the sidewall of core pipe 32 offers lateral pore 33, the sidewall sheath of core pipe 32 is provided with elastic tube 34, lateral pore 33 can be blocked by elastic tube 34, when the air pressure outside storeroom 1 is more than internal air pressure, and inner and outer air pressure difference is when reaching preset value, gas outside storeroom 1 can back down elastic tube 34 by lateral pore, and entered in storeroom 1 by between the sidewall of elastic tube 34 and core pipe 32.
The air-pressure balancing device that the embodiment of the present invention provides, owing to being provided with the communicating pipe 31 of inside and outside for storeroom 1 connection, and it is arranged at the core pipe 32 in communicating pipe 31, core pipe 32 radially has lateral pore 33, and is arranged with elastic tube 34 on core pipe 32, when storeroom 1 inner and outer air pressure is identical, lateral pore 33 on core pipe 32 is blocked by elastic tube 34, stop airflow inside and outside storeroom 1, refrigerating plant will not frosting, increase energy consumption；When the air pressure outside storeroom 1 more than internal air pressure and inner and outer air pressure is poor reach preset value time, gas outside storeroom 1 backs down elastic tube 34 by lateral pore 33, and by entering in storeroom 1 between the sidewall of elastic tube 34 and core pipe 32, and then realizing storeroom 1 inside and outside air pressure balance, the door body 2 of refrigerating plant can normally be opened.Because when storeroom 1 inner and outer air pressure difference reaches preset value, outside gas just can strut elastic tube 34 and enter in storeroom 1, therefore, the passage of air-pressure balancing device 3 is that intermittence is made, compared to existing technology, extraneous hot-air will not continue in storeroom 1, it is therefore prevented that the internal frosting of refrigerating plant, reduces the energy consumption of refrigerating plant.
It should be noted that the storeroom of general refrigerating plant includes cold room and refrigerating chamber, compare, refrigerating chamber cryogenic temperature is relatively low, its air pressure inside and external pressure difference are relatively big, and door body stubborn phenomenon ratio is more serious, and cold room internal-external temperature difference is less, and then draught head is less, the stubborn problem of door body is relatively light, therefore, in order to save cost, only air-pressure balancing device can be set inside and outside refrigerating chamber, solve the stubborn problem of door body.
Embodiment one
The air-pressure balancing device that the present embodiment provides, core pipe 32 and communicating pipe 31 can be one-body molded, but, the installation of such elastic tube 34 is very inconvenient, therefore, by core pipe 32 with removably connect communicating pipe 31.As in figure 2 it is shown, core pipe 32 can be threadeded with communicating pipe 31, or core pipe 32 passes through buckle structure clamping with communicating pipe 31.
Owing to core pipe 32 also needing to sheathed elastic tube 34, lateral pore 33 is blocked, therefore, for ease of realizing, core pipe 32 is arranged in communicating pipe 31, as shown in Figure 2, when core pipe was arranged in communicating pipe 31, the medial wall of the lateral wall of core pipe 32 Yu communicating pipe 31 can be threaded connection, so, first elastic tube 34 is placed on core pipe 32, and blocks lateral pore 33, then the core pipe 32 with elastic tube 34 is put into communicating pipe 31, and screwed by screw thread with communicating pipe 31, the assembling of air-pressure balancing device 3 can be completed.
It should be noted that when core pipe 32 adopts with elastic tube 34 and to threaded, for the ease of installing, as in figure 2 it is shown, the blind end of core pipe 32 can be provided with the hexagonal structure being easy to spanner force.When communicating pipe 31 put into by core pipe 32, due to the stop of communicating pipe 31, staff is relatively difficult when rotary core pipe 32, after being provided with hexagonal structure, it is possible to and screw core pipe 32 communicating pipe by die nut.
In order to communicating pipe 31 easily assembles, as shown in Figure 2, include outer tube 311 and interior pipe 312 communicating pipe 31, the outer end mouth of pipe of outer tube 311 is for the ft connection with storeroom 1, the inner mouth of pipe of outer tube 311 is for connecting with the inside of storeroom 1, the inner mouth of pipe place of outer tube 311 is removably connected with interior pipe 312, and the mouth of pipe place, outer end of outer tube 311 is removably connected with core pipe 32.So, when installing communicating pipe 31, first core pipe 32 can be loaded and in outer tube 311, and be connected with the mouth of pipe place, outer end of outer tube 311, then by interior pipe 312 and outer tube 311 respectively from the inside and outside loading of storeroom 1, then be assemblied together, convenient for assembly.
Outer tube 311 and the interior pipe 312 of communicating pipe 31 removably connect, and the mode of its connection can have multiple, for instance, as in figure 2 it is shown, outer tube 311 and interior pipe 312 are threaded connection, or outer tube 311 and interior pipe 312 are by buckle structure clamping；Equally, core pipe 32 and the connection of outer tube 311 can also be threadeding as shown in Figure 2, or by buckle structure clamping.Comparatively speaking, threaded stronger, and be hardly damaged.
Block communicating pipe 31 to prevent from entering foreign body in communicating pipe 31, as in figure 2 it is shown, communicating pipe 31 is provided with baffle plate 4 for the mouth of pipe (i.e. the mouth of pipe of the outer tube 311) place connected outside storeroom 1, baffle plate 4 offers passage.Baffle plate 4 arranges passage, can ensure that outside air can enter in communicating pipe 31 on the one hand, can prevent extraneous foreign body from entering communicating pipe 31 and blocking the problem generation of communicating pipe 31 on the other hand.
nullWhen the air pressure outside storeroom 1 is more than internal air pressure、And inner and outer air pressure difference is when reaching preset value，Gas outside storeroom 1 backs down elastic tube 34 by lateral pore 33，And entered in storeroom 1 by between the sidewall of elastic tube 34 and core pipe 32，If draught head is bigger，There is the hidden danger separated by elastic tube 34 with core pipe 32，Therefore，In order to avoid this risk，Elastic tube 34 can be fixed on core pipe 32 by pasting or riveting，Although this way solves the problem that elastic tube 34 separates owing to storeroom 1 inside and outside differential pressure is relatively big with core pipe 32，But elastic tube 34 is not quick detachable with core pipe 32，It is unfavorable for that the later stage changes elastic tube 34，Therefore，Anti-skid structure can be provided with at the wall outer surface of core pipe 32，Increase the frictional force between core pipe 32 and elastic tube 34，And then this risk can be avoided.
Specifically, anti-skid structure can be multiple projections of the wall outer surface being distributed in core pipe 32.Multiple projection is set, increases the frictional force between core pipe 32 and elastic tube 34.Certainly, anti-skid structure can be arranged flexibly, for instance, within one week, radially offer gear around core pipe 32 sidewall.
In order to prevent compartment interior frosting further, in the gas flow path of air-pressure balancing device 3, it is provided with desiccant.As such, it is possible to effectively reduce the humidity of gas in storeroom 1 and caisson 4, reducing the probability of compartment interior frosting, desiccant is reused after can taking out replacing after using a period of time or drying, and using method is simple and environmental protection.Desiccant can be placed in compartment interior, or inside caisson, or inside air-pressure balancing device.
Embodiment two
The air-pressure balancing device that the present embodiment provides, difference with embodiment one is: as shown in Figure 3, core pipe 32 is provided with outward flange 321 for the mouth of pipe place connected outside storeroom 1, the inner mouth of pipe place of communicating pipe 31 is provided with inward flange 313, core pipe 32 is connected to the mouth of pipe place, outer end of communicating pipe 31, and the outer face of outward flange 321 and communicating pipe 31 against.With reference to Fig. 3 and Fig. 4, when installing air-pressure balancing device 3, first communicating pipe 31 is loaded from storeroom 1 inside the installing hole of air-pressure balancing device 3, inward flange 313 and storeroom 1 inwall against, then from storeroom 1 is outside, core pipe 32 was connected with communicating pipe 31, the outer face of the outward flange of core pipe 32 and communicating pipe 31 against.Comparing, core pipe 32 was loaded in communicating pipe 31 for the mouth of pipe connected outside storeroom 1 by communicating pipe 31, need not arrange interior pipe, simple in construction communicating pipe 31, and install more convenient.
Owing to core pipe 32 loads from communicating pipe 31 for the mouth of pipe connected outside storeroom 1, and need not arranging interior pipe, installation operation is more convenient, therefore, can arrange the hexagonal structure being easy to spanner force.Meanwhile, baffle plate 4 may be provided in core pipe 32 on the mouth of pipe outside storeroom 1, and offers passage on baffle plate 4.
The mode that core pipe 32 and communicating pipe 31 connect can have multiple, for instance, as shown in Figure 5 and Figure 6, core pipe 32 and communicating pipe 31 are threaded connection；Or core pipe 32 and communicating pipe 31 are by buckle structure clamping.
It addition, can also arrange baffle plate in the present embodiment, described baffle plate can clamping or be threadedly connected to the mouth of pipe place of described core pipe 32.
The air-pressure balancing device that the present embodiment provides, other structures are identical with embodiment one, do not repeat them here.
The embodiment of the present invention also provides for a kind of refrigerating plant on the other hand, as shown in Figure 5 and Figure 6, including storeroom 1 and for opening or close the door body 2 of described storeroom, also includes above-mentioned air-pressure balancing device 3.
The refrigerating plant that the embodiment of the present invention provides, owing to being provided with air-pressure balancing device 3, storeroom 1 inner and outer air pressure can be balanced, and the passage of barometric control unit 3 is that intermittence is made, compared to existing technology, extraneous hot-air will not continue in storeroom 1, it is therefore prevented that the internal frosting of refrigerating plant, reduces the energy consumption of refrigerating plant.
The air-pressure balancing device 3 installation site on refrigerating plant can be arranged flexibly, have only to ensure that storeroom 1 inside and outside connects, but, refrigerating plant for direct-cooling type, position temperature generally proximate to door body 2 is higher, when regulating air pressure, when damp-heat air outside cool room 2 enters internal, easily in entrance location frosting, if air-pressure balancing device 3 is positioned close to the position bottom storeroom 1, not only frosting is serious and defrosting is more difficult, therefore, as shown in Figure 5 and Figure 6, air-pressure balancing device 3 can be arranged on storeroom 1 sidewall and arrange near door body 2, reduce frost, and it is more convenient to defrost.Certainly, in order to convenient for assembly with installation, air-pressure balancing device 3 can be arranged on the box-frame that refrigerating plant contacts with door body 2.When two mouths of pipe of communicating pipe 31 are positioned on same sidewall, and not when sustained height, in order to two mouths of pipe are connected, communicating pipe 31 may be configured as bend pipe or inclined tube, when two mouths of pipe of communicating pipe 31 are positioned on same sidewall, and when being positioned at sustained height, communicating pipe 31 may be configured as straight tube, compare, the distance of straight tube connection is the shortest, and then material requested is minimum, simultaneously, the communicating pipe 31 of straight tube easily makes, and installs during communicating pipe 31 more convenient.
It should be noted that the difference of the position being located on refrigerating plant according to two mouths of pipe of communicating pipe 31, it is possible to communicating pipe 31 is fabricated to the pipeline of bending or knuckle.In order to not affect the outward appearance of refrigerating plant, the mouth of pipe outside connection storeroom 1 is opened in the place that user is not readily apparent, such as, in refrigerating plant exterior lateral sides, the back side or compressor bin etc., so, when two mouths of pipe of communicating pipe 31 are not at sustained height or on same sidewall, can be fabricated to the pipeline of bending or knuckle communicating pipe 31.
In order to air-pressure balancing device 3 can be installed more easily, as it is shown in fig. 7, air-pressure balancing device 3 is arranged in door body 2.Air-pressure balancing device 3 is arranged in door body 2, easier for installation.When air-pressure balancing device 3 is arranged in door body, as shown in Figure 7, communicating pipe 31 is bend pipe, and communicating pipe 31 is positioned at door body 2 inner bag wall for the mouth of pipe connected within storeroom 1, and communicating pipe 31 is positioned at the sidewall of door body 2 shell for the mouth of pipe connected outside storeroom 1.In order to not affect outward appearance, communicating pipe 31 is arranged on for the mouth of pipe connected outside storeroom 1 sidewall of door body 2 shell, in order to make, communicating pipe 31 and storeroom 1 are internal to be connected, communicating pipe 31 is arranged on inner door wall for the mouth of pipe connected within storeroom 1, so, bend pipe can be adopted to be connected by two mouths of pipe, owing to the bearing of trend of two mouths of pipe is orthogonal, it is therefore preferred that adopt the bend pipe of knuckle 90 °.
The refrigerating plant that the embodiment of the present invention provides, other beneficial effects are same as the previously described embodiments, do not repeat them here.
These are only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain described in claim.
Claims (12)
1. an air-pressure balancing device, for the air pressure inside and outside balanced system device for cooling storeroom, it is characterized in that, including the communicating pipe for connecting inside and outside storeroom and be arranged at the core pipe in described communicating pipe, one end of described core pipe is for the ft connection with described storeroom, the other end is closed, the sidewall of described core pipe offers lateral pore, the sidewall sheath of described core pipe is provided with elastic tube, described lateral pore can be blocked by described elastic tube, when the air pressure outside described storeroom is more than internal air pressure, and inner and outer air pressure difference is when reaching preset value, gas outside described storeroom can back down described elastic tube by described lateral pore, and enter in described storeroom between the sidewall by described elastic tube and described core pipe.
2. air-pressure balancing device according to claim 1, it is characterised in that described core pipe with removably connect described communicating pipe.
3. air-pressure balancing device according to claim 2, it is characterised in that the lateral wall of described core pipe and the medial wall of described communicating pipe are threaded connection.
4. the air-pressure balancing device according to Claims 2 or 3, it is characterized in that, described core pipe is provided with outward flange for the mouth of pipe place connected outside storeroom, the inner mouth of pipe place of described communicating pipe is provided with inward flange, described core pipe is connected to the mouth of pipe place, outer end of described communicating pipe, and the outer face of described outward flange and described communicating pipe against.
5. the air-pressure balancing device according to Claims 2 or 3, it is characterized in that, include outer tube and interior pipe described communicating pipe, the outer end mouth of pipe of described outer tube is for the ft connection with storeroom, the inner mouth of pipe of described outer tube is for connecting with the inside of storeroom, the inner mouth of pipe place of described outer tube is removably connected with said inner tube, and the mouth of pipe place, outer end of described outer tube is removably connected with described core pipe.
6. air-pressure balancing device according to claim 5, it is characterised in that said inner tube and outer tube are threaded connection or clamping.
7. the air-pressure balancing device according to any one of claim 1～6, it is characterised in that described communicating pipe is provided with baffle plate for the port connected outside storeroom, and described baffle plate offers passage.
8. the air-pressure balancing device according to any one of Claims 1 to 5, it is characterised in that the wall outer surface of described core pipe is provided with anti-skid structure.
9. the air-pressure balancing device according to any one of Claims 1 to 5, it is characterised in that described anti-skid structure is multiple projections of the wall outer surface being distributed in described core pipe.
10. a refrigerating plant, including storeroom and for opening or cut out the door body of described storeroom, it is characterised in that also include the air-pressure balancing device according to any one of claim 1～9.
11. refrigerating plant according to claim 10, it is characterised in that described air-pressure balancing device is arranged on described storeroom sidewall and arranges near described door body, and two mouths of pipe that described communicating pipe is straight tube and described communicating pipe are positioned at sustained height.
12. refrigerating plant according to claim 10, it is characterized in that, described air-pressure balancing device is arranged in described door body, described communicating pipe is bend pipe, described communicating pipe is positioned at described inner door wall for the mouth of pipe connecting compartment interior, and described communicating pipe is positioned at the sidewall of described outer shell of the door for the mouth of pipe connected outside storeroom.
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| CN201610224330.8A CN105783380B (en) | 2016-04-11 | 2016-04-11 | A kind of air-pressure balancing device and refrigerating plant |
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| CN201610224330.8A CN105783380B (en) | 2016-04-11 | 2016-04-11 | A kind of air-pressure balancing device and refrigerating plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690212A (en) * | 2016-09-12 | 2019-04-26 | 普和希控股公司 | Negative pressure releases port and refrigerating plant |
| CN111829127A (en) * | 2020-07-23 | 2020-10-27 | 李威 | Self-adaptation negative pressure ward that negative feedback formula was adjusted |
| CN115468359A (en) * | 2021-06-11 | 2022-12-13 | 青岛海尔特种电冰柜有限公司 | Air pressure balance valve and refrigerator with same |
| CN117128347A (en) * | 2023-10-26 | 2023-11-28 | 佛山市顺德区西科电器有限公司 | Air pressure balance valve and refrigerator |
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| CN103673469A (en) * | 2012-09-26 | 2014-03-26 | 海尔集团公司 | Freezer |
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| CN111829127B (en) * | 2020-07-23 | 2021-08-31 | 薛勇 | Self-adaptation negative pressure ward that negative feedback formula was adjusted |
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| CN115468359B (en) * | 2021-06-11 | 2024-03-15 | 青岛海尔特种电冰柜有限公司 | Air pressure balance valve and refrigerator with same |
| CN117128347A (en) * | 2023-10-26 | 2023-11-28 | 佛山市顺德区西科电器有限公司 | Air pressure balance valve and refrigerator |
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