CN100574620C - Mobile vacuum precooling device - Google Patents
Mobile vacuum precooling device Download PDFInfo
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- CN100574620C CN100574620C CN200710071594A CN200710071594A CN100574620C CN 100574620 C CN100574620 C CN 100574620C CN 200710071594 A CN200710071594 A CN 200710071594A CN 200710071594 A CN200710071594 A CN 200710071594A CN 100574620 C CN100574620 C CN 100574620C
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- vacuum
- pressure
- vacuum tank
- precooling
- bearing
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Abstract
The invention discloses a kind of mobile vacuum precooling device, this device is made up of vacuum tank, steam trapping system, refrigeration system, vacuum system and automatic control system.Vacuum tank is the combining structure that a microbend band reinforcement, inner liner stainless steel thin plate are formed, and this structure has the characteristics of outer pressure resistance height, in light weight, conveniently moving.The steam trapping system is made up of refrigeration system and water trap, and moisture content is removed, and ensures the normal running of vacuum system.Automatic control system can be according to the different in kind of processed agricultural product, precooling temperature and precooling asynchronism(-nization), different vacuum and different operating times are set, and according to the difference of temperature, humidity in the vacuum tank, control vavuum pump and water charging system make temperature, humidity, pressure in the vacuum tank reach the value that needs.This equipment is installed concentratedly on a mobile support saddle, and is removable.This vacuum pre-cooler treating capacity is big, and precooling speed is fast, and the automaticity height is good in economic efficiency.
Description
Technical field
The present invention relates to be used for a kind of pre-cooler, particularly relate to a kind of agricultural product mobile vacuum precooling equipment.
Background technology
Fruits and vegetables, food etc. are cooled to suitable temperature, are called precooling to prolong its pot-life, fruits and vegetables precooling at present mainly contains four kinds of modes: water-cooled precooling, high wind precooling, differential pressure precooling, vacuum pre-cooling.The vacuum cooled precooling is the research and development of the sixties in last century, afterwards along with the continuous progress of vacuum technique, vacuum cooled has obtained greatly developing with its exclusive unrivaled advantage and has used widely, especially in developed countries such as American-European and Japan with first procedure of vacuum cooled after as fruit and vegetable picking, improved kind, the quality of fruits and vegetables, the treating capacity of vacuum pre-cooling accounts for more than 60% of whole fruits and vegetables precooling total amount at present.It is also relatively backward that but China is studied aspect vacuum pre-cooling, mainly contain ZL200610005348.5 at present and proposed a kind of vacuum precooling freshness retaining equipment, ZL03129156.2 has proposed a kind of vacuum precooling freshness retaining device, ZL02247790.X has proposed a kind of vacuum precooling device of tool low temperature ventilation unit, ZL03219877.9 has proposed a kind of vacuum precooling freshness retaining equipment, and ZL96114397.5 has proposed a kind of vacuum pre-refrigerating multi-kind air preservation device and preservation method thereof.These domestic technique equipment and foreign technology ratio, efficient is lower, and the pre-cool equipment of large-scale vacuum relies on to be introduced.And portable place of production vacuum pre-cooling equipment also is in blank at present, the present invention is directed to the problem of above existence, has proposed a kind of mobile vacuum precooling device that can overcome above shortcoming.
Summary of the invention
The object of the present invention is to provide a kind of mobile vacuum precooling device.
The technical solution used in the present invention is as follows:
This equipment has a vacuum tank that carries out the agricultural product vacuum pre-cooling, and vacuum tank is provided with weighing apparatus pressure device and quick operating valve, and the top is provided with temperature, humidity sensor and pressure sensor; The import of vavuum pump is divided into two-way again behind back segment vacuum tube and back segment valve, the one tunnel connects muffler behind air inlet pipe, intake valve, muffler and atmosphere UNICOM; Vacuum tank is inserted through water trap, leading portion valve and leading portion vacuum tube in another road; Vacuum pump outlet connects the vacuum gas outlet through vacuum degassing pipe and deduster; One termination water trap of cold-producing medium air inlet pipe, another termination condenser of cold-producing medium air inlet pipe, one end cooled via return air pipe water receiving vapour trap of refrigeration machine, one end of refrigeration machine connects condenser through the high-pressure refrigerant pipe, one termination water trap of condensed water collecting pipe, the other end of condensed water collecting pipe connects condenser through draining valve, and the vacuum tank inner top is provided with the moisturizing pipeline of a plurality of moisturizing spray heads, and the moisturizing pipeline is connected with supply-water pump; Vacuum tank simultaneously has the quick operating valve for the material turnover; Temperature, humidity sensor, pressure sensor, weighing apparatus pressure device, supply-water pump and vavuum pump are electrically connected with controller.
Described vacuum tank, be connected by weld seam with four arc corners by the left and right housing of pressure-bearing upper and lower casing and pressure-bearing, add that drive end bearing bracket, rear end cap are combined into an airtight cavity, about this pressure-bearing vacuum tank, about around the inboard reinforcement that is provided with the larger radius of curvature microbend of equidistant distribution, the reinforcement inboard is the stainless steel lining of 3-6mm, has the passage that makes this corrosion resistant plate pressure at both sides balance above the stainless steel lining; The vacuum tank bottom is provided with the guide rail that is used for the material turnover.
The inboard reinforcement of evenly arranging of the left and right housing of described pressure-bearing upper and lower casing and pressure-bearing, the outer arcuate of this reinforcement is identical with the radian of pressure-bearing upper and lower casing and the left and right housing of pressure-bearing inboard, and it is fixing to be interrupted welding.
The present invention compares with background technology, and the useful effect that has is:
1, whole system of the present invention all is installed in the operating platform, can realize moving easily, this vacuum precooling device can be transported to the agricultural cultivation district of forefront, carries out precooling treatment rapidly, reduces the field loss of agricultural product to greatest extent.
2, vacuum tank of the present invention adopts the rectangle pressure-bearing shell of larger radius of curvature microbend, the inboard reinforcement of evenly arranging of microbend pressure-bearing shell, the outer arcuate of this reinforcement is identical with the radian of pressure-bearing upper and lower casing and the left and right housing of pressure-bearing inboard, and it is fixing to be interrupted welding each other, the inner liner stainless steel lining, this structure has the outer pressure resistance height, and is in light weight, economical with materials is convenient to move.
3, back segment vacuum tube of the present invention is provided with the back segment valve, the opposite side of back segment valve is provided with air inlet pipe, intake valve, the muffler that is communicated with successively, when after precooling is finished, needing to open the vacuum tank quick operating valve, necessary pressure release, this system remains unchanged vacuum tank temperature in the vacuum cavity when pressure release, has avoided directly the high-temperature gas outside the vacuum tank being leaked into traditional pressure release mode that vacuum tank significantly rises the agricultural product temperature.
4, big, the processing time short (about 30 minutes) for the treatment of capacity of the present invention, automaticity height, economic benefit height.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
Fig. 2 is the vertical view of vacuum tank.
Fig. 3 is the sectional view of Fig. 2.
Fig. 4 is the side view and the front view of reinforcement.
Among the figure: 1-vacuum tank, 2-quick operating valve, 3-moisturizing spray head, 4-moisturizing pipeline, the 5-temperature, humidity sensor, 6-pressure sensor, 7-leading portion vacuum tube, 8-leading portion valve, 9-cold-producing medium air inlet pipe, 10-water trap, 11-air inlet pipe, 12-intake valve, the 13-muffler, 14-back segment valve, 15-back segment vacuum tube, 16-vacuum degassing pipe, the outlet of 17-vacuum gas, 18-deduster, 19-control circuit, the 20-controller, 21-vavuum pump, 22-refrigeration machine, 23-refrigeration machine muffler, 24-condensed water collecting pipe, 25-high-pressure refrigerant pipe, the 26-draining valve, 27-supply-water pump, 28-condenser, the 29-pressure device that weighs, the 30-movable chassis is on the 31-pressure-bearing, lower house, 32-arc corner, 33-stainless steel lining, 34-reinforcement, the 35-passage, a 36-pressure-bearing left side, right shell body, the 37-guide rail, the 38-weld seam, 39-rear end cap, 40-drive end bearing bracket.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention has a vacuum tank 1 that carries out the agricultural product vacuum pre-cooling, and vacuum tank 1 is provided with weighing apparatus pressure device 29 and quick operating valve 2, and the top is provided with temperature, humidity sensor 5 and pressure sensor 6; The import of vavuum pump 21 is divided into two-way again behind back segment vacuum tube 15 and back segment valve 14, the one tunnel connects muffler 13, muffler and atmosphere UNICOM behind air inlet pipe 11, intake valve 12; Vacuum tank 1 is inserted through water trap 10, leading portion valve 8 and leading portion vacuum tube 7 in another road; Vavuum pump 21 outlets connect vacuum gas outlet 17 through vacuum degassing pipe 16 and deduster 18; One termination water trap 10 of cold-producing medium air inlet pipe 9, another termination condenser 28 of cold-producing medium air inlet pipe 9, one end cooled via return air pipe, the 23 water receiving vapour traps 10 of refrigeration machine 22, one end of refrigeration machine 22 connects condenser 28 through high-pressure refrigerant pipe 25, one termination water trap 10 of condensed water collecting pipe 24, the other end of condensed water collecting pipe 24 connects condenser 28 through draining valve 26, and vacuum tank 1 inner top is provided with the moisturizing pipeline 4 of a plurality of moisturizing spray heads 3, and moisturizing pipeline 4 is connected with supply-water pump 27; Vacuum tank simultaneously has the quick operating valve 2 for the material turnover; Temperature, humidity sensor 5, pressure sensor 6, weighing apparatus pressure device 29, supply-water pump 27 and vavuum pump 21 are electrically connected with controller 20.
As Fig. 2, shown in Figure 3, described vacuum tank 1, be connected by weld seam 38 with four arc corners 32 by the left and right housing 36 of pressure-bearing upper and lower casing 31 and pressure-bearing, add that drive end bearing bracket 40, rear end cap 39 are combined into an airtight cavity, this pressure-bearing vacuum tank about in the of 1, about around the inboard reinforcement that is provided with the larger radius of curvature microbend of equidistant distribution, the reinforcement inboard is the stainless steel lining 33 of 3-6mm, has the passage 35 that makes this corrosion resistant plate pressure at both sides balance above the stainless steel lining 33; The vacuum tank bottom is provided with and is used for material turnover guide rail 37.
As Fig. 2, shown in Figure 3, the left and right housing 36 inboard reinforcements 34 of evenly arranging of described pressure-bearing upper and lower casing 31 and pressure-bearing, the outer arcuate of this reinforcement 34 is identical with the radian of pressure-bearing upper and lower casing 31 and the left and right housing of pressure-bearing 36 inboards, and it is fixing to be interrupted welding, Fig. 4 (a) is the side view of reinforcement, and Fig. 4 (b) is the front view of reinforcement.
This mobile vacuum precooling device is provided with the moisturizing spray system, and this spray system is made up of supply-water pump 27, a plurality of moisturizing spray heads 3 and moisturizing pipeline 4 around being distributed in, requires to start the additional moisture content of spray system by controller according to the agricultural product different disposal.
This mobile vacuum precooling device is provided with the steam trapping system, and this steam trapping system is connected to form by water trap and leading portion vacuum tube 7, back segment vacuum tube 15, cold-producing medium air inlet pipe 9, refrigeration machine muffler 23, condensed water collecting pipe 24; Cold-producing medium circulates in the closed loop of being made up of cold-producing medium air inlet pipe 9, refrigeration machine muffler 23, refrigeration machine 22, high-pressure refrigerant pipe 25, condenser 28, cold is passed in the water trap 10, in water trap 10, will be condensed into water and gather in the condensed water collecting pipe 24 by the steam that the air the inside that vavuum pump 21 is extracted out is contained, when an operation cycle is finished, with the condensed water emptying of collecting.
The back segment vacuum tube 15 of this mobile vacuum precooling device is provided with back segment valve 14, the opposite side of back segment valve 14 is provided with air inlet pipe 11, intake valve 12, the muffler 13 that is communicated with successively, when after precooling is finished, needing to open vacuum tank quick operating valve 2, necessary pressure release, this system remains unchanged vacuum tank 1 temperature in the vacuum cavity when pressure release.
This mobile vacuum precooling device is provided with automatic control system, and this control system is linked to each other with temperature, humidity sensor 5, pressure sensor 6, supply-water pump 27, weighing apparatus pressure device 29, intake valve 12, vavuum pump 21 respectively by control circuit by controller.After vacuum precooling operation beginning, set appropriate vacuum degree, and the pressure device that will weigh is set to this vacuum ± 100Pa scope, when the temperature in the vacuum tank 1, humidity, pressure exceed the value of setting, open or close corresponding regulating system, to satisfy the needs of production technology.
Operation principle of the present invention is as follows:
At first open quick operating valve, pending agricultural product are placed in the vacuum tank, close quick operating valve, guarantee that sealing is reliable.Open refrigeration system, make refrigeration system reach normal duty.Open vacuum system, make the interior pressure of vacuum tank reach the setting value of technological requirement, under this vacuum, steam constantly evaporates in the vacuum tank, absorbs a large amount of heats, thereby makes the agricultural product fast cooling reach the precooling effect; Prescribe a time limit when vacuum reaches the following of pressure device setting that weigh, control system stops vavuum pump and corresponding refrigeration system automatically; When vacuum is higher than going up in limited time of weighing apparatus pressure device setting, start refrigeration system and vavuum pump, repeatable operation is till vacuum pre-cooling is finished.When the agricultural product dehydration in the vacuum tank is serious, can open water charging system, water is sprayed replenish moisture content in the vacuum tank, and can reduce the temperature in the vacuum tank fast.When the vacuum precooling reaches technological requirement, stop the operation of vavuum pump, close the back segment valve, open air intake valve, make air go into vacuum tank through supercooling is laggard, close intake valve and refrigeration system after in vacuum tank, reaching normal pressure, simultaneously condensed water is discharged outside the water trap; Open quick operating valve this moment, with the agricultural product that the dispose preprepared heat-preserving equipment of packing into, is transported to corresponding processing factory, carries out the vacuum pre-cooling of next batch.At different agricultural product, the vacuum of vacuum pre-cooling, pre-cool time are different with rate of water make-up, can determine above precooling parameter by test in advance.
Claims (3)
1, a kind of mobile vacuum precooling device, it is characterized in that: this device has a vacuum tank (1) that carries out the agricultural product vacuum pre-cooling, vacuum tank (1) is provided with weighing apparatus pressure device (29) and quick operating valve (2), and the top is provided with temperature, humidity sensor (5) and pressure sensor (6); The import of vavuum pump (21) is divided into two-way again behind back segment vacuum tube (15) and back segment valve (14), the one tunnel connects muffler (13), muffler and atmosphere UNICOM behind air inlet pipe (11), intake valve (12); Vacuum tank (1) is inserted through water trap (10), leading portion valve (8) and leading portion vacuum tube (7) in another road; Vavuum pump (21) outlet connects vacuum gas outlet (17) through vacuum degassing pipe (16) and deduster (18); One termination water trap (10) of cold-producing medium air inlet pipe (9), another termination condenser (28) of cold-producing medium air inlet pipe (9), one end cooled via return air pipe (23) water receiving vapour trap (10) of refrigeration machine (22), the other end of refrigeration machine (22) connects condenser (28) through high-pressure refrigerant pipe (25), one termination water trap (10) of condensed water collecting pipe (24), the other end of condensed water collecting pipe (24) connects condenser (28) through draining valve (26), vacuum tank (1) inner top is provided with the moisturizing pipeline (4) of a plurality of moisturizing spray heads (3), and moisturizing pipeline (4) is connected with supply-water pump (27); Vacuum tank simultaneously has the quick operating valve (2) for the material turnover; Temperature, humidity sensor (5), pressure sensor (6), weighing apparatus pressure device (29), supply-water pump (27) and vavuum pump (21) are electrically connected with controller (20).
2, a kind of mobile vacuum precooling device according to claim 1, it is characterized in that: described vacuum tank (1), on pressure-bearing, a lower house (31) and a pressure-bearing left side, right shell body (36) is connected by weld seam (38) with four arc corners (32), add drive end bearing bracket (40), rear end cap (39) is combined into an airtight cavity, this vacuum tank (1) up and down, about around the inboard reinforcement that is provided with the larger radius of curvature microbend of equidistant distribution, the reinforcement inboard is the stainless steel lining (33) of 3-6mm, has the passage (35) that makes this stainless steel lining pressure at both sides balance above the stainless steel lining (33); The vacuum tank bottom is provided with the guide rail (37) that is used for the material turnover.
3, a kind of mobile vacuum precooling device according to claim 2, it is characterized in that: the inboard reinforcement (34) of evenly arranging of described pressure-bearing upper and lower casing (31) and the left and right housing of pressure-bearing (36), the outer arcuate of this reinforcement (34) is identical with the radian of pressure-bearing upper and lower casing (31) and the left and right housing of pressure-bearing (36) inboard, and it is fixing to be interrupted welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071594A CN100574620C (en) | 2007-09-30 | 2007-09-30 | Mobile vacuum precooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071594A CN100574620C (en) | 2007-09-30 | 2007-09-30 | Mobile vacuum precooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101138365A CN101138365A (en) | 2008-03-12 |
| CN100574620C true CN100574620C (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710071594A Expired - Fee Related CN100574620C (en) | 2007-09-30 | 2007-09-30 | Mobile vacuum precooling device |
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| Country | Link |
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| CN (1) | CN100574620C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076834A (en) * | 2014-03-18 | 2014-10-01 | 北京卫星环境工程研究所 | Spacecraft sealed cabin humidity control system and method used for vacuum hot test |
| CN104406347B (en) * | 2014-11-19 | 2017-02-08 | 浙江大学 | Quick-freezing device and method based on ultra-low-temperature water medium |
| CN104585302A (en) * | 2015-01-19 | 2015-05-06 | 江苏裕灌现代农业科技有限公司 | Vacuum four-clamping plate precooling device |
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- 2007-09-30 CN CN200710071594A patent/CN100574620C/en not_active Expired - Fee Related
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| CN101138365A (en) | 2008-03-12 |
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Granted publication date: 20091230 Termination date: 20120930 |