CN1007656B - Refrigerated storage cabient - Google Patents
Refrigerated storage cabientInfo
- Publication number
- CN1007656B CN1007656B CN 85106968 CN85106968A CN1007656B CN 1007656 B CN1007656 B CN 1007656B CN 85106968 CN85106968 CN 85106968 CN 85106968 A CN85106968 A CN 85106968A CN 1007656 B CN1007656 B CN 1007656B
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- CN
- China
- Prior art keywords
- mentioned
- air
- evaporimeter
- storeroom
- refrigerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Abstract
The present invention relates to a freezer with a humidity controller. A refrigeration system is provided with two evaporators which are connected in parallel, one evaporator is installed in a storage exhibition room and is used for cooling stored goods, the other evaporator is installed in an air circulation passage, the air circulation passage is communicated with the storage exhibition room through a front hole and a back hole, and air can be circulated indoors. The air suction side of the air circulation passage is communicated with the outside through a hole, and the opening and the closing of the hole are controlled by a throttle plate so as to stop the circulation of outside air. The evaporators only cool outside air, the water vapor of the outside air is condensed, and condensed water vapor humidifies air which circulates in the storage exhibition room.
Description
The present invention relates to one has the refrigerator of regulating psychrometric means, is used to prevent the hoarding of money drying.
Usually, refrigerator is equipped with a refrigeration plant, and refrigeration plant comprises an evaporimeter that is used to cool off storeroom or storage showroom, a compressor and a condenser, and the latter two are mounted in the operating room of cabinet.The storage space of regular general cargo is to be cooled off by free convection or forced convertion, utilizes the cross-ventilation of nature or fan to rotate, and makes air in the storeroom by being installed in the evaporimeter of storeroom top and/or bottom.Temperature control equipment such as thermostat are being controlled the operation of refrigeration plant, to keep the predetermined temperature in the storeroom.
The condition of work of refrigeration plant is depended in the variation of storage indoor humidity, and just when refrigeration plant moved, contained steam was condensed in the storage room air, and frosting on the cooling fin of evaporimeter.It is dry that the result of condensation makes the air by the evaporimeter of this equipment, and therefore, the relative humidity in the storeroom reduces.On the contrary, if refrigeration plant is out of service, the frost on the evaporimeter will melt, and finally becomes water, and water evaporates once more, and wet air once more.Like this, storeroom reaches the state of high humility again.But such humidity variation may damage and be housed in cold preserving method.So a kind of method is arranged, such as Japanese Utility Model disclose clear 54-7456 number description, exactly the water of scheduled volume continuously is sent in the storeroom, make the interior space become wet.But this method need have the pipeline of water being delivered to the chamber, and refrigerator should be installed near the place, water source.Like this, the position of refrigerator will be restricted, and in order to satisfy the humidity that requires, will increase expense.The another kind of method that keeps humidity is announced institute's description clear 47-32202 number as Japanese Utility Model, be exactly with in certain cooling substance introducing cabinet, but the air in the storeroom may be contaminated.Also having another kind of method, is exactly to introduce the outer fresh air of refrigerator indoor.Yet this has just increased indoor thermic load.
According to the present invention, refrigerator has a goods storeroom, refrigerator is equipped with a refrigeration plant that makes the storeroom cooling, comprise a compressor in the equipment, a condenser and two evaporimeters, two evaporimeters are connected in parallel, so that cooling fluid flows into wherein evaporimeter selectively, one in two evaporimeters is installed in the storeroom, be used for the air in the cooling chamber, and other one be installed in the air duct, the exterior of air duct and refrigerator, be used to cool off the steam of air of coming from the outside, or air duct is communicated with storeroom 11, make the water that cooled off in advance wetting air enter in the storeroom and circulate.
The structure that the refrigeration plant of routine is carried out after the simple modifications only needs the sub-fraction space, just can offer the suitable humidity of storeroom.
Some examples of the refrigerator that constitutes according to the present invention are illustrated with accompanying drawing, wherein:
Fig. 1 is the longitudinal plane view of first refrigerator;
Fig. 2 is the schematic diagram of refrigeration system;
Fig. 3 is a time plot, is used for the course of work of refrigeration plant in the key diagram 2;
Fig. 4 is the local amplification view of second refrigerator;
Fig. 5 is the local amplification view of the 3rd refrigerator;
Fig. 6 is the local amplification view of the 4th refrigerator;
Fig. 7 is the cutaway view in A-A cross section among Fig. 6;
Fig. 8 is the cutaway view in B-B cross section among Fig. 6;
Fig. 9 is the cutaway view in C-C cross section among Fig. 6;
Figure 10 is the schematic diagram that the air duct of using in the 4th refrigerator is described;
With reference to Fig. 1, refrigerator 1 comprises storage showroom 11, a top and machine work chamber, a bottom 12.Storeroom 11 is that the slidably back glass door 114 by the side plate that extends between the heat insulation wallboard 111 in top, the heat insulation wallboard 112 in bottom, upper board 111 and the lower panel 112 (not expression), front glass window 113 and open and close refrigerator 1 back opening constitutes.In storage showroom 11, many shelves 13 flatly are placed in the storeroom 11, the chamber are divided into the interval of many displays.
Second evaporimeter 17 is placed on the lower part of chamber 11, be in by in the air duct 18 formed passages, air duct 18 is by the inner surface of lower panel 112 and topped definite between the extension base plate 19 of chamber 11 inner bottom parts, base plate 19 has been stipulated preceding airport 181 and back airport 182, by means of front and back airport 181,182, air in the storeroom 11 just can pass through air duct 18, utilizes second desk fan 20 of exhaust one side of second evaporimeter 17 to force air by second evaporimeter 17.
Form one by lower panel 112 and be communicated with inlet hole 21, the outside of refrigerator 1 is communicated with the suction end of air duct 18, and this hole is by choke block 22 controls.When choke block 22 was opened hole 21, the choke block 22 that is contained on the air duct 18 had sealed chamber 11 internal channels.Thereby the air of outside enters in the air duct 18 by hole 21, and by second evaporimeter 17.
As shown in Figure 2, the refrigeration plant 23 that is used in the refrigerator 1 comprises 14,17 and low-pressure balance tubes 233 of 232,2 evaporimeters of 231, one condensers of a compressor.Compressor 231, condenser 232, acescent 233 generally are placed in the operating room 12 of bottom.First evaporimeter 14 and second evaporimeter 17 usefulness parallel way connect, and a selector valve 24 is equipped with in the air-breathing junction of two evaporimeters 14,17, and it communicates with condenser 232 again.Decompressor 234 and check valve 235 are separately positioned on an air-breathing side and exhaust one side of every evaporimeter 14,17.Therefore, when refrigeration plant 23 work, because the work of selector valve 24 makes cooling fluid pass through any evaporimeter.
The work of refrigeration plant and humidity control device describe with reference to Fig. 1-3.When Electron Excitation level circuit (not having expression) energising, compressor 231 and 15 runnings of first desk fan, and continuous operation are till the driving circuit outage.In Fig. 3 by t
0This of expression constantly, the temperature in the storage showroom 11 surpasses predetermined temperature usually, therefore, the work by selector valve 24 makes cooling fluid flow into first evaporimeter 14, choke block 22 closes closed pores 21 simultaneously.Selector valve 24 and choke block 22 are by a thermostat (not having expression) control.
At the moment, second desk fan 20 also is driven, and therefore, the air in the storeroom 11 circulates in chamber 11, and is marked by the arrow A table among Fig. 1 by first, second evaporimeter 14,17(loop direction).On the other hand, compressor 231 compresses cooling fluid, and sends in the condenser 232, then by first evaporimeter 14 and acescent 233, an air-breathing side of getting back to compressor 231.Like this, the air by first evaporimeter 14 makes chamber 11 coolings.
In process of refrigerastion, if the temperature in the storeroom 11 is lower than predetermined temperature (as t among Fig. 3
1Expression), selector valve 24 actions, the flow direction of change cooling fluid, simultaneously, choke block 22 is opened hole 21, makes between outside and the air duct 18 to communicate.The motion of second desk fan 20 also stops, as shown in Figure 3.At this moment, choke block 22 separates the passage between the suction end of the inside of chamber 11 and air duct 18.Therefore, the work by first desk fan 15 makes the air in the chamber 11 only pass through first evaporimeter 14.Under the mobile situation about being prevented from of the cooling fluid in first evaporimeter, the cooling fluid in the refrigeration plant 23 flows through second evaporimeter 17.Evaporate once more by steam in the chamber 11 of 14 condensations of first evaporimeter, and the result of this evaporation increases the humidity in the storeroom 11.On the other hand, because cooling fluid flows through second evaporimeter 17, by heat exchange, make the air cooling in the air duct 18, and the result of cooling makes airborne part air pressure reduce with the condensation of steam with second evaporimeter 17.Because the air pressure of outside is relatively than the air pressure height in the air duct 18, so outside air flows in the air duct 18 by hole 21.The flow direction of air is represented with the dotted line that has arrow B.Therefore, airborne steam is condensed, and frosting on second evaporimeter.
When the work of refrigeration plant stopped, the temperature in the storeroom 11 generally will raise, and surpassed predetermined temperature at last.T in by Fig. 3
1The expression this time the time, the air circulation of storeroom 11 and the flow direction of cooling fluid are got back to time t again
0Initial position, refrigeration work begins again.Even it is airborne steam condensation makes the air drying by first evaporimeter, still,, therefore, wetted by the air of second evaporimeter 17 owing to the frost on second evaporimeter 17 is melted.
As shown in Figure 3, the temperature in the chamber 11 is depended in the circulation of above-mentioned work, and carries out continuously till the driving circuit outage.Therefore, the humidity of the air of the circulation in the storeroom 11 is kept by second evaporimeter 17.
In above-mentioned example, employing be forced convertion.But, also can adopt free convection.
Fig. 4 illustrates another kind of refrigerator, and wherein identical with the part of appliance shown in Fig. 1 parts are with identical numeral.In this example, determined air duct flatly separates with a dividing plate 29 between the inner surface of base plate 19 and following plate 112, forms first air duct 30 and second air duct 31. Air duct 30,31 communicates with storage showroom 11 by preceding airport 32a, 32b and back airport 33a, 33b respectively, and airport is to form at the front end of base plate 19 and rear end.
First evaporimeter 14 ' and first desk fan 15 ' be installed in first air duct 30, second evaporimeter 17 ' and second desk fan 20 ' be installed in second air duct 31.In addition, the suction end of second air duct 31 is equipped with the Kai Heguan that choke block 27 is convenient to control hole 21 through the exterior of air admission hole 21 with refrigerator 1 in passage 31.When choke block 27 made hole 21 be in the position of opening, the passage between the suction end of the inside of storeroom 11 and second air duct 31 was just sealed by choke block 27.In hole 21, can dispose membrane filter 35, enter to prevent dust in air.The work of refrigeration plant, fan and choke block the same with described in first example.
Like this, when first desk fan 15 ' work, the airport 32a of air through the front in the storage showroom 11 enters first air duct 30, carry out heat exchange with first evaporimeter, make the air cooling, Zhi Leng air turns back in the chamber 11 through the airport 33a of back simultaneously.Air in second desk fan 20 ' the make storage showroom 11 enters second air duct 31 through the airport 32b of front, by second evaporimeter 17 ' turn back in the chamber 11 via back airport 32b.Like this, storage showroom 11 is by first evaporimeter 14 ' cooling.
When the temperature of storeroom 11 is lower than predetermined temperature, second evaporimeter 17 of cooling fluid inflow ', choke block 27 moves simultaneously, thereby opens hole 21, and the air outside allowing enters the suction end of second air duct 31.Second desk fan 20 ' stop operating, and first desk fan 15 ' still rotating.Therefore, the air in the storeroom 11 enter first air duct 30, simultaneously by first evaporimeter 14 '.No thoroughfare that second air duct 31 circulates by choke block 27 for indoor air.
At this moment since by first evaporimeter 14 ' cooling fluid be interrupted, first evaporimeter 14 ' on frost melted, make simultaneously by first evaporimeter 14 ' air wetting.Therefore, the humidity in the storage showroom 11 increases.On the other hand, because of second evaporimeter 17 ' refrigeration, so the external airborne steam that enters the suction end of second air duct 31 through via hole 21 is condensed, frosting on second evaporimeter 31 simultaneously.
If the temperature in the storage showroom 11 surpasses predetermined temperature, so, flowing of air circulation in the storage showroom 11 and cooling fluid got back to the starting stage again, and refrigeration plant begins the refrigeration work of storeroom 11 again simultaneously.At this moment, the water of second evaporimeter 17 ' thawing makes by second evaporimeter 17 ' air wetting.Whole courses of work by refrigeration plant just can obtain the moisture that frost produced on any evaporimeter continuously.
The embodiment of expression in Fig. 5 presentation graphs 4, wherein Xia Mian plate 12 has another one venthole 36 its holes that the exhaust end of the outside of showcase 1 and second air duct 31 is linked up, when peace plate 37 is in away from the position in hole 36, communication between the exhaust end of second air duct 31 and storage 11 inside, showroom is interrupted by choke block 37, and the air circulation outside allowing.Two choke blocks 27 and 37 always are synchronized with the movement, second desk fan 20 ' rotation depend on the motion of choke block 27,36.Promptly when closing its hole for one in two choke blocks, another piece choke block is also closed its hole, when two holes are closed simultaneously, and second desk fan 20 ' do not move.When all opened in two holes 21 and 26, extraneous air flowed into second air duct 31, because second desk fan 20 ' running is discharged to air the outside of refrigerator 1.When outside air circulated, steam contained in the outside air was condensed, and frosting on evaporimeter.Therefore, improved the condensation performance of second evaporimeter.
Fig. 6 to 10 expression improves the another one embodiment of the duty factor of second evaporimeter position.In Figure 10, clearly show.Following plate 112 has a space 40 of extending, and it is to be surrounded by thermal wall parts 401 that extend to operating room 12.First evaporimeter 14 ' and first desk fan 15 " be installed in first air duct 30 ' in, make air in storage showroom 11, circulate by preceding hole 32a and metapore 33a.Because wider space 40 is fully formed by following plate 112, separate with storage showroom 11 simultaneously, second air duct 31 ' make it and first air duct 30 ' separate by dividing plate 29, space 40 is by a preceding hole 32b, and the aspirating air pipe 311, that suction hole 311a preceding hole 32b and wider space 40 carries out internal communication carries out the steam vent 312a of wider space 40 and chamber 11 that metapore 33b that the discharge duct 312 of internal communication and one links up wider space 40 and chamber 11 is common to be constituted.Second evaporimeter 17 " is placed in the wider space 40, perpendicular to air-flow direction.Second desk fan is placed in the space 40 of extension to reach the purpose of forced convertion.The inside of wider space 40, the particularly suction end of wider space 40 are by the external communications of hole 21 with refrigerator 1, and this hole is that related content is with reference to the explanation among above-mentioned Fig. 1,4 or 5 by 27 controls of a choke block.
At work, when refrigeration plant started, cooling fluid flowed into first evaporimeter 14 ", first and second desk fan 15 ", 20 " turns round.Therefore, the air in chamber 11 be admitted to first air duct 30 ', so that " carry out heat exchange with first evaporimeter 14.Thereby " cooling that the air in the chamber 11 is by first evaporimeter 14.At this moment, because airborne steam is condensed, by first evaporimeter 14 " air be dry." also running makes air in the chamber 11 by second air duct 31 ' and wider space 40 on the other hand, second desk fan 20.
When the temperature that the temperature in preserving showroom 11 is cooled to be scheduled to was following, cooling fluid flowed into second evaporimeter 17 ", second desk fan 20 " shuts down simultaneously.Yet first desk fan 15 " remain in operation, the air of preserving simultaneously in the showroom 11 passes first evaporimeter 14 " first air duct 30 of flowing through '.Because the frost on the evaporimeter melts into water, by first evaporimeter 14 " air wet.On the other hand, hole 21 is owing to the action of choke block 27 is opened, like this, when the air in the wider space 40 cools off, the air inflow space 40 of outside, and the frosting on second evaporimeter of airborne steam.
If the temperature in the storage showroom 11 surpasses predetermined temperature, circulation restarts.At this moment, the frost on second evaporimeter melts, because the frost that melts makes by second evaporimeter 17 " with the humid air.Therefore, the air humidity in the storage showroom 11 maintains on the desired degree.
Claims (7)
1, one contains the refrigerator that a goods storeroom and are used for cooling off the refrigeration plant of storeroom, described refrigeration plant comprises a compressor, a condenser and two evaporimeters, it is characterized in that, above-mentioned two evaporimeters connect with parallel way, so that make refrigerant flow into wherein evaporimeter selectively, one in above-mentioned two evaporimeters is installed in the above-mentioned storeroom, be used for the air in the cooling chamber, other one is installed in the air duct, above-mentioned air duct communicates with the outside of above-mentioned refrigerator, be used for the condensation airborne water vapour that comes from the outside, perhaps above-mentioned air duct is communicated with above-mentioned storeroom, make the water given first condensation wetting air enter in the above-mentioned storeroom and circulate.
2, according to the refrigerator of claim 1, it is characterized in that, be provided with the choke block that communicates between above-mentioned air duct of control and the above-mentioned refrigerator outside.
According to the refrigerator of claim 1 or 2, it is characterized in that 3, the ambient air inlet place of above-mentioned air duct is provided with membrane filter.
According to the refrigerator of claim 1 or 2, it is characterized in that 4, the import of above-mentioned air duct one end and the outlet of an other end make above-mentioned air duct communicate with the outside of above-mentioned refrigerator, are provided with the above-mentioned choke block that can close this import and outlet.
According to the refrigerator of claim 1 or 2, it is characterized in that 5, an above-mentioned evaporimeter is installed in the top of above-mentioned storeroom, and an other above-mentioned evaporimeter is installed in the bottom of above-mentioned storeroom.
According to the refrigerator of claim 1 or 2, it is characterized in that 6, two above-mentioned evaporimeters are installed in the bottom of above-mentioned storeroom, the air that flows through above-mentioned evaporimeter separately by a dividing plate.
According to the refrigerator of claim 1 or 2, it is characterized in that 7, an above-mentioned evaporimeter is installed in the bottom of above-mentioned storeroom, and an other above-mentioned evaporimeter is installed in the another one chamber below the above-mentioned storeroom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106968 CN1007656B (en) | 1985-09-17 | 1985-09-17 | Refrigerated storage cabient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106968 CN1007656B (en) | 1985-09-17 | 1985-09-17 | Refrigerated storage cabient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106968A CN85106968A (en) | 1987-04-01 |
| CN1007656B true CN1007656B (en) | 1990-04-18 |
Family
ID=4795379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85106968 Expired CN1007656B (en) | 1985-09-17 | 1985-09-17 | Refrigerated storage cabient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007656B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000046456A (en) * | 1998-07-29 | 2000-02-18 | Sankyo Seiki Mfg Co Ltd | Refrigerator |
| CN105078086A (en) * | 2015-09-17 | 2015-11-25 | 苏州拾向梦数字媒体有限公司 | Low-energy-consumption efficient low temperature fresh-keeping exhibition stand |
| CN110806046B (en) * | 2019-11-27 | 2021-11-16 | 合肥美科制冷技术有限公司 | Single-door refrigerator |
| CN113566476A (en) * | 2021-07-27 | 2021-10-29 | 广东美科冷链科技有限公司 | Fresh-keeping cabinet with constant humidity function |
-
1985
- 1985-09-17 CN CN 85106968 patent/CN1007656B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85106968A (en) | 1987-04-01 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |