CN216147153U - Movable variable-frequency constant-pressure precooling device - Google Patents
Movable variable-frequency constant-pressure precooling device Download PDFInfo
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- CN216147153U CN216147153U CN202122219457.XU CN202122219457U CN216147153U CN 216147153 U CN216147153 U CN 216147153U CN 202122219457 U CN202122219457 U CN 202122219457U CN 216147153 U CN216147153 U CN 216147153U
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Abstract
The utility model discloses a movable variable-frequency constant-pressure precooling device which comprises a case, wherein the case consists of a heat exchange region, a negative pressure region and a control region which are arranged from bottom to top, a refrigerating device is arranged on the inner side of the heat exchange region, and a pressure sensing device is arranged on the inner side of the negative pressure region. According to the utility model, the PLC, the control panel and the frequency converter are arranged in the control area, the stable negative pressure is formed in the negative pressure area by controlling the rotating speed of the motor of the mixed flow fan, the stability of air inlet and air outlet is controlled by the first electric control valve and the second electric control valve, the airflow is uniform and stable, the precooling effect is good, the lifting assembly, the stretching assembly and the rotating structure for the movement of the lifting assembly are arranged, and the transportation can be transferred to the transport vehicle without an external tool through the matching of a plurality of groups of electric hydraulic rods, so that the transportation and the transfer are more convenient.
Description
Technical Field
The utility model relates to the technical field of fruit and vegetable refrigeration, in particular to a movable variable-frequency constant-pressure precooling device.
Background
The fruits and vegetables can continuously breathe after being picked to continuously release heat, high heat can be accumulated in the fruits and vegetables before and after being picked due to factors such as sunlight, air temperature and the like, if the fruits and vegetables are directly stored in a warehouse for accumulation and storage, the internal temperature of the fruits and vegetables is difficult to reduce, the fruits and vegetables are continuously in a high temperature state and are not beneficial to storage, precooling means that field heat is removed in a short time by adopting a cooling mode with high speed and high efficiency, the respiration intensity of the fruits and vegetables is reduced, the storage period and the shelf life of the fruits and vegetables are prolonged, and precooling is a key link for refrigeration, storage and transportation of the picked fruits and vegetables.
The prior precooling device is improved on the basis of a common refrigerator, is inconvenient to move and limits the use place of the prior precooling device, and the prior precooling device has mobility and can be arranged in the precooling refrigerator for application, but airflow nonuniformity exists in differential pressure precooling, so that cooling heterogeneity can be caused, local supercooling or insufficient cooling of fruits and vegetables can be caused, in addition, the prior precooling device needs a forklift and the like to be carried to a transport tool before transportation, and the transportation is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a mobile variable-frequency constant-pressure precooling device.
In order to achieve the purpose, the utility model adopts the following technical scheme: a movable variable-frequency constant-pressure precooling device comprises a case, wherein the case consists of a heat exchange region, a negative pressure region and a control region which are arranged from bottom to top, a refrigerating device is arranged on the inner side of the heat exchange region, and a pressure sensing device is arranged on the inner side of the negative pressure region; the circulating component is arranged on the side wall of the case and used for circulating cooling air and air after cooling and the control component is used for controlling the air quantity of the circulating component; the lifting component is arranged on the outer wall of the case and is convenient to carry, and the extending component and the rotating structure are used for the movement of the lifting component; the control unit is fixedly connected to the front wall of the case control area and consists of a PLC (programmable logic controller), a control panel and a frequency converter; the roller is rotatably connected to the lower wall of the case; the control unit is electrically connected with the control assembly, the lifting assembly, the stretching assembly, the refrigerating device in the heat exchange area and the pressure sensing device on the inner side of the negative pressure area.
As a further description of the above technical solution:
the circulating assembly comprises a mixed flow fan, an air inlet circulating pipe and an air outlet circulating pipe, the mixed flow fan is fixedly connected to the side wall of the negative pressure region of the case, an air inlet of the mixed flow fan is communicated with the negative pressure region, the air outlet circulating pipe is fixedly connected to one end, far away from the case, of the mixed flow fan, and the air inlet circulating pipe is fixedly connected to the side wall of the heat exchange region of the case.
As a further description of the above technical solution:
the control assembly comprises a first electric control valve and a second electric control valve, and the first electric control valve and the second electric control valve are fixedly connected to the outer walls of the air inlet circulating pipe and the air outlet circulating pipe respectively.
As a further description of the above technical solution:
the extension component comprises two groups of first rails, two groups of second rails, first long sliders, second long sliders, first electric hydraulic rods and third electric hydraulic rods, the first rails are fixedly connected to the front wall and the rear wall of the heat exchange area of the case respectively, the first long sliders are connected to the inner side walls of the two groups of first rails in a sliding mode, the first electric hydraulic rods are fixedly connected between the left ends of the two groups of first long sliders and the inner left walls of the two groups of first rails respectively, the second rails are fixedly connected to the front wall and the rear wall of the negative pressure area of the case respectively, the second long sliders are connected to the inner side walls of the two groups of second rails in a sliding mode, and the third electric hydraulic rods are fixedly connected between the right ends of the two groups of second long sliders and the inner right walls of the two groups of second rails respectively.
As a further description of the above technical solution:
the rotating structure comprises two groups of first rotating seats and second rotating seats, the first rotating seats are respectively connected with one ends of two groups of first long sliding blocks far away from the left wall in the first track in a rotating mode, the second rotating seats are respectively connected with one ends of two groups of second long sliding blocks far away from the right wall in the second track in a rotating mode, the first rotating seats and the second rotating seats are respectively provided with connectors, and the first rotating seats and the second rotating seats are respectively connected with the first long sliding blocks and the second long sliding blocks in a rotating mode through the connectors.
As a further description of the above technical solution:
the lifting component comprises two groups of second electric hydraulic rods, a fourth electric hydraulic rod and a first supporting leg, the groove is accomodate to second supporting legs and first groove, the second of accomodating, and is two sets of the groove is accomodate to first the groove of accomodating sets up respectively at quick-witted case heat transfer district antetheca and back wall and be close to right side wall position, and is two sets of the groove is accomodate to the second sets up respectively at quick-witted case negative pressure zone antetheca and back wall and be close to left side wall position, and is two sets of the groove inboard is accomodate to second electronic hydraulic stem fixed connection respectively is located two sets of first lower walls of rotating the seat and the position is located two sets of first respectively, and is two sets of the groove inboard is accomodate to fourth electronic hydraulic stem fixed connection respectively at two sets of second rotating seat lower walls and the position, and is two sets of first supporting legs fixed connection respectively keeps away from the one end of first rotating the seat at two sets of second electronic hydraulic stem, and two sets of second supporting legs fixed connection respectively keep away from the one end that the second rotated the seat.
The utility model has the following beneficial effects:
1. compared with the prior art, this portable frequency conversion constant voltage precooling apparatus sets up PLC controller, control panel and converter in the control area, makes the negative pressure district form stable negative pressure through the motor speed of control mixed flow fan to through the stability of first automatically controlled valve, the automatically controlled valve control air inlet of second and air-out, make the air current even and stable, the precooling is effectual.
2. Compared with the prior art, this portable frequency conversion constant voltage precooling apparatus, the lifting unit who sets up and the extension subassembly and the rotating-structure that supply the lifting unit activity, through the cooperation of multiunit electronic hydraulic stem, can also can transfer the transport vechicle with the help of external instrument on, it is more convenient that the transport shifts.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a mobile variable-frequency constant-pressure precooling apparatus according to the present invention;
fig. 2 is a schematic view illustrating an extended state of a protruding assembly and a lifting assembly of the mobile variable-frequency constant-pressure pre-cooling device according to the present invention;
fig. 3 is a schematic view of a connection structure of a first rail and a first long slider of the mobile variable-frequency constant-pressure precooling apparatus according to the present invention;
fig. 4 is a schematic structural diagram of a first rotating base of the mobile variable-frequency constant-pressure precooling apparatus according to the present invention.
Illustration of the drawings:
1. a heat exchange zone; 2. a negative pressure region; 3. a control area; 4. a control unit; 5. a roller; 6. an air intake circulation pipe; 7. a first electrically controlled valve; 8. a mixed flow fan; 9. an air outlet circulation pipe; 10. a second electrically controlled valve; 11. a first track; 12. a first long slider; 13. a first electro-hydraulic lever; 14. a first rotating base; 15. a second electro-hydraulic ram; 16. a first supporting leg; 17. a second track; 18. a second long slider; 19. a third electro-hydraulic ram; 20. a second rotating base; 21. a fourth electro-hydraulic ram; 22. a second support leg; 23. a first receiving groove; 24. a second receiving groove; 25. a connecting head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a mobile variable-frequency constant-pressure precooling apparatus: the device comprises a case, wherein the case consists of a heat exchange area 1, a negative pressure area 2 and a control area 3 which are arranged from bottom to top, a refrigerating device is arranged at the inner side of the heat exchange area 1, a pressure sensing device is arranged at the inner side of the negative pressure area 2, and the pressure sensing device is a common technology in the market and is used for detecting the pressure in the negative pressure area 2 and providing data to a control unit 4; a circulating component which is arranged on the side wall of the machine box and used for circulating cooling air and air after cooling and a control component for controlling the air quantity of the circulating component; the lifting component is arranged on the outer wall of the case and is convenient to carry, and the extending component and the rotating structure are used for the lifting component to move; the control unit 4 is fixedly connected to the front wall of the case control area 3, the control unit 4 consists of a PLC (programmable logic controller), a control panel and a frequency converter, and the PLC has a PID (proportion integration differentiation) control function; a roller 5 rotatably connected to the lower wall of the case; the control unit 4 is electrically connected with the control assembly, the lifting assembly, the stretching assembly, the refrigerating device in the heat exchange area 1 and the pressure sensing device at the inner side of the negative pressure area 2.
The circulating component comprises a mixed flow fan 8, an air inlet circulating pipe 6 and an air outlet circulating pipe 9, the mixed flow fan 8 is fixedly connected with the side wall of a negative pressure region 2 of the case, an air inlet of the mixed flow fan 8 is communicated with the negative pressure region 2, the air outlet circulating pipe 9 is fixedly connected with one end of the mixed flow fan 8 far away from the case, the air inlet circulating pipe 6 is fixedly connected with the side wall of a heat exchange region 1 of the case, one ends of the air inlet circulating pipe 6 and the air outlet circulating pipe 9 far away from the case are fixedly connected with a precooling warehouse, air is refrigerated by a refrigerating device in the heat exchange region 1, the mixed flow fan 8 extracts air from the negative pressure region 2 to enable the negative pressure region 2 to form a negative pressure state, the refrigerated air in the heat exchange region 1 flows to the negative pressure region 2 through pressure difference, and then is blown to the precooling fruits and vegetables by the mixed flow fan 8 and the air outlet circulating pipe 9, meanwhile, the air released from the precooling warehouse is extracted to the heat exchange region 1 by the air inlet circulating pipe 6 to continue heat exchange refrigeration by the negative pressure state, and (5) circulating and reciprocating.
The control assembly comprises a first electric control valve 7 and a second electric control valve 10, the first electric control valve 7 and the second electric control valve 10 are respectively and fixedly connected to an air inlet circulating pipe 6 and the outer wall of an air outlet circulating pipe 9, the pressure value at the inner side of the negative pressure zone 2 is detected through a pressure sensing device of the negative pressure zone 2 and is transmitted back to the control unit 4, the control unit 4 is compared with a set value, the first electric control valve 7 and the second electric control valve 10 are controlled through the control unit 4 to carry out flow regulation, and the rotating speed of the mixed flow fan 8 is controlled in a matched mode, so that the pressure value in the negative pressure zone 2 meets the set value.
The extension component comprises two groups of first tracks 11, second tracks 17, first long sliders 12, second long sliders 18, first electric hydraulic rods 13 and third electric hydraulic rods 19, the two groups of first tracks 11 are fixedly connected to the front wall and the rear wall of the heat exchange area 1 of the chassis respectively, the two groups of first long sliders 12 are slidably connected to the inner side walls of the two groups of first tracks 11 respectively, the two groups of first electric hydraulic rods 13 are fixedly connected between the left ends of the two groups of first long sliders 12 and the inner left walls of the two groups of first tracks 11 respectively, the two groups of second tracks 17 are fixedly connected to the front wall and the rear wall of the negative pressure area 2 of the chassis respectively, the two groups of second long sliders 18 are slidably connected to the inner side walls of the two groups of second tracks 17 respectively, the two groups of third electric hydraulic rods 19 are fixedly connected between the right ends of the two groups of second long sliders 18 and the inner right walls of the two groups of second tracks 17 respectively, when the chassis needs to be transferred, the first long sliders 12, the second long sliders 12, the rear sliders 13 and the third electric hydraulic rods 19 are fixedly connected to the inner side walls of the chassis, The second long slider 18 can slide along the first rail 11, the second rail 17 by the extending and retracting actions of the first electro-hydraulic rod 13 and the third electro-hydraulic rod 19.
The rotating structure comprises two groups of first rotating seats 14 and second rotating seats 20, wherein the two groups of first rotating seats 14 are respectively and rotatably connected with one ends of the two groups of first long sliding blocks 12, which are far away from the left wall on the inner side of the first track 11, the two groups of second rotating seats 20 are respectively and rotatably connected with one ends of the two groups of second long sliding blocks 18, which are far away from the right wall on the inner side of the second track 17, the outer walls of the two groups of first rotating seats 14 and the second rotating seats 20 are respectively provided with a connector 25, the first rotating seats 14 and the second rotating seats 20 are respectively and rotatably connected with the first long sliding blocks 12 and the second long sliding blocks 18 through the connectors 25, the two groups of second electric hydraulic rods 15, the fourth electric hydraulic rods 21, the first supporting feet 16, the second supporting feet 22, the first accommodating grooves 23 and the second accommodating grooves 24 are respectively arranged on the front wall and the rear wall of the heat exchange area 1 of the machine box and are close to the right side wall, the two groups of second accommodating grooves 24 are respectively arranged on the front wall and the rear wall of the negative pressure area 2 of the machine box and close to the left side wall, two sets of second electro-hydraulic rods 15 are respectively fixed connection at two sets of first rotation seat 14 lower walls and the position is located two sets of first storage grooves 23 inboard respectively, two sets of fourth electro-hydraulic rods 21 are respectively fixed connection at two sets of second rotation seat 20 lower walls and the position is located two sets of second storage grooves 24 inboard respectively, two sets of first supporting legs 16 are respectively fixed connection at two sets of second electro-hydraulic rods 15 one end of keeping away from first rotation seat 14, two sets of second supporting legs 22 are respectively fixed connection at two sets of fourth electro-hydraulic rods 21 one end of keeping away from second rotation seat 20, through rotating-structure, can be with second electro-hydraulic rods 15, fourth electro-hydraulic rods 21 from first storage grooves 23, the second is accomodate the groove 24 and is rotated to the quick-witted case outside, after the commentaries on classics out, through second electro-hydraulic rods 15, the action of stretching out and retracting of fourth electro-hydraulic rods 21, can drive the quick-witted case and go up and down.
The working principle is as follows: the pressure value at the inner side of the negative pressure area 2 is detected by a pressure sensing device of the negative pressure area 2, the pressure value is transmitted back to the control unit 4 and compared with a set value, the first electric control valve 7 and the second electric control valve 10 are controlled by the control unit 4 to carry out flow regulation, the rotating speed of the mixed flow fan 8 is controlled in a matching manner, so that the pressure value in the negative pressure area 2 meets the set value, the negative pressure area 2 keeps constant pressure, the cooling air flow is stable, the precooling effect is good, when the chassis needs to be transferred, the chassis is moved to the vicinity of the transport vehicle through the idler wheels 5, the second electro-hydraulic rod 15 and the fourth electro-hydraulic rod 21 can be rotated to the outer side of the chassis from the first accommodating groove 23 and the second accommodating groove 24 through the rotating structure, after the rotation, the third electro-hydraulic rod 19 is controlled to extend out to drive the second long slide block 18 to slide along the second track 17 and extend out of the chassis, the chassis is moved, so that the second supporting foot 22 at the lower end of the fourth electro-hydraulic rod 21 is positioned above the chassis of the transport vehicle, further, control second electronic hydraulic stem 15, fourth electronic hydraulic stem 21 does the action of stretching out, it rises to drive the quick-witted case, when 5 bottoms of case gyro wheel are higher than the transport vechicle chassis, second electronic hydraulic stem 15, fourth electronic hydraulic stem 21 stops rising, control the action of 19 retractions of third electronic hydraulic stem and first electronic hydraulic stem 13 stretches out, drive quick-witted case promptly and slide towards transport vechicle chassis top along first track 11 and second track 17, when the machine case is in transport vechicle chassis top completely, stop the action of first electronic hydraulic stem 13 and third electronic hydraulic stem 19, control second electronic hydraulic stem 15 simultaneously, the retraction of fourth electronic hydraulic stem 21, make gyro wheel 5 contact the transport vechicle upper surface, further withdraw lifting unit and extension subassembly, it fixes to push the quick-witted case to suitable position through gyro wheel 5.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a portable frequency conversion constant voltage precooling apparatus which characterized in that: the refrigerator comprises a case, wherein the case consists of a heat exchange area (1), a negative pressure area (2) and a control area (3) which are arranged from bottom to top, a refrigerating device is arranged on the inner side of the heat exchange area (1), and a pressure sensing device is arranged on the inner side of the negative pressure area (2);
the circulating component is arranged on the side wall of the case and used for circulating cooling air and air after cooling and the control component is used for controlling the air quantity of the circulating component;
the lifting component is arranged on the outer wall of the case and is convenient to carry, and the extending component and the rotating structure are used for the movement of the lifting component;
the control unit (4) is fixedly connected to the front wall of the case control area (3), and the control unit (4) consists of a PLC (programmable logic controller), a control panel and a frequency converter;
a roller (5) rotatably connected to the lower wall of the case;
the control unit (4) is electrically connected with the control assembly, the lifting assembly, the stretching assembly, the refrigerating device in the heat exchange area (1) and the pressure sensing device at the inner side of the negative pressure area (2).
2. The mobile variable-frequency constant-pressure precooling apparatus according to claim 1, wherein: the circulating assembly comprises a mixed flow fan (8), an air inlet circulating pipe (6) and an air outlet circulating pipe (9), the mixed flow fan (8) is fixedly connected to the side wall of the negative pressure area (2) of the case, an air inlet of the mixed flow fan (8) is communicated with the negative pressure area (2), the air outlet circulating pipe (9) is fixedly connected to one end, far away from the case, of the mixed flow fan (8), and the air inlet circulating pipe (6) is fixedly connected to the side wall of the heat exchange area (1) of the case.
3. The mobile variable-frequency constant-pressure precooling apparatus according to claim 2, wherein: the control assembly comprises a first electric control valve (7) and a second electric control valve (10), and the first electric control valve (7) and the second electric control valve (10) are fixedly connected to the outer walls of the air inlet circulating pipe (6) and the air outlet circulating pipe (9) respectively.
4. The mobile variable-frequency constant-pressure precooling apparatus according to claim 3, wherein: the extension component comprises two groups of first tracks (11), second tracks (17), first long sliders (12), second long sliders (18), first electric hydraulic rods (13) and third electric hydraulic rods (19), the first tracks (11) are fixedly connected to the front wall and the rear wall of the heat exchange area (1) of the case respectively, the first long sliders (12) are connected to the inner side walls of the two groups of first tracks (11) in a sliding mode, the first electric hydraulic rods (13) are fixedly connected to the left ends of the two groups of first long sliders (12) and the inner side left walls of the two groups of first tracks (11) respectively, the second tracks (17) are fixedly connected to the front wall and the rear wall of the negative pressure area (2) of the case respectively, the second long sliders (18) are connected to the inner side walls of the two groups of second tracks (17) respectively, and the third electric hydraulic rods (19) are fixedly connected to the right ends of the second long sliders (18) and the inner side walls of the two groups of second tracks (17) respectively Between the side right walls.
5. The mobile variable-frequency constant-pressure precooling apparatus according to claim 4, wherein: rotating-structure includes that two sets of first rotate seat (14), second rotate seat (20), and is two sets of first rotate seat (14) rotate respectively and connect the one end of keeping away from first track (11) inboard left wall at two sets of first long sliders (12), and are two sets of second rotates seat (20) and rotates respectively and connect the one end of keeping away from second track (17) inboard right wall at two sets of second long sliders (18), and is two sets of first rotate seat (14), second and rotate seat (20) outer wall and all be provided with connector (25), first rotation seat (14), second rotate seat (20) and all rotate with first long slider (12), the long slider (18) of second respectively through connector (25) and are connected.
6. The mobile variable-frequency constant-pressure precooling apparatus according to claim 5, wherein: two sets of second electric hydraulic rod (15), fourth electric hydraulic rod (21), first supporting leg (16), second supporting legs (22) and first groove (23), the second of accomodating are accomodate to groove (24), two sets of are accomodate to first groove (23) of accomodating sets up respectively at quick-witted case heat transfer district (1) antetheca and back wall and be close to right side wall position, and are two sets of groove (24) are accomodate to the second sets up respectively at quick-witted case negative pressure zone (2) antetheca and back wall and be close to left side wall position, and are two sets of groove (23) inboard is accomodate to second electric hydraulic rod (15) fixed connection respectively at two sets of first rotating seat (14) lower wall and position, and are two sets of are accomodate groove (24) inboard at two sets of second to fourth electric hydraulic rod (21) fixed connection respectively at two sets of second rotating seat (20) lower wall and position, first supporting leg (16) fixed connection respectively keeps away from first rotating seat (14) at two sets of second electric hydraulic rod (15) and rotate seat (14) and position and accomodate groove (24) inboard two sets of second, two sets of first supporting leg (16) are inboard respectively ) And the two groups of second supporting legs (22) are respectively and fixedly connected to one ends, far away from the second rotating seat (20), of the two groups of fourth electric hydraulic rods (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122219457.XU CN216147153U (en) | 2021-09-14 | 2021-09-14 | Movable variable-frequency constant-pressure precooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122219457.XU CN216147153U (en) | 2021-09-14 | 2021-09-14 | Movable variable-frequency constant-pressure precooling device |
Publications (1)
| Publication Number | Publication Date |
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| CN216147153U true CN216147153U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122219457.XU Active CN216147153U (en) | 2021-09-14 | 2021-09-14 | Movable variable-frequency constant-pressure precooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216147153U (en) |
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2021
- 2021-09-14 CN CN202122219457.XU patent/CN216147153U/en active Active
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