Pre-cooling storage with movable pre-cooling curtain
By combining forced ventilation precooling and differential pressure ventilation, and using a sliding precooling curtain to cover both sides of the blueberry basket, the problem of air leakage in differential pressure ventilation precooling was solved, the precooling efficiency was improved, and the storage quality of the blueberries was maintained.
Patent Information
- Application Number
- CN202520339456.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In existing differential pressure ventilation precooling methods, the gaps on the left and right sides of the blueberry basket cause air leakage, which reduces the precooling efficiency and affects the storage quality of the blueberries.
A combination of forced ventilation pre-cooling and differential pressure ventilation is used, and sliding pre-cooling curtains are installed on both sides of the blueberry basket to cover both sides of the tray and reduce air leakage.
It significantly reduces the rate of rot and weight loss of blueberries during storage, reduces mold and dehydration and shrinkage, maintains the soluble solids, titratable acid content and firmness of the fruit, and ensures the taste and nutritional quality during storage.
Smart Images
Figure CN223783148U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to precooling bin technical field, concretely relates to a precooling storehouse with mobile precooling curtain. BACKGROUND
[0002] Differential pressure ventilation precooling is a precooling method similar to forced ventilation precooling, and differential pressure precooling needs to install a cold air fan, a differential pressure fan and a static pressure tank in the cold store. When precooling, the just-picked blueberries are placed in baskets and stacked on the tray in a certain way, and the differential pressure fan is used to suck cold air, so that a certain pressure difference is generated on the front and back sides of the basket, and the cold air flows through the basket to exchange heat. When using differential pressure precooling to precool the blueberries, the baskets are generally placed in two rows, and a non-air-permeable material is used to cover the top, so that the wind can flow through the basket containing the blueberries to precool the blueberries. However, the left and right sides of the basket are not covered, and there are still a large number of gaps, which to some extent weaken the effect of the differential pressure fan and reduce the precooling efficiency. SUMMARY
[0003] The utility model discloses a precooling storehouse with mobile precooling curtain, which combines forced ventilation precooling and differential pressure ventilation precooling, and covers the left and right sides of the blueberry basket with a precooling curtain to reduce air leakage on both sides of the tray.
[0004] The technical scheme of the utility model is as follows:
[0005] A precooling storehouse with mobile precooling curtain, comprising a cold store outer wall plate, a precooling bin side wall and a precooling curtain, wherein the cold store outer wall plate is arranged in parallel with the precooling bin side wall, at least one differential pressure fan and at least one cold air fan are arranged on the cold store outer wall plate; a precooling return air inlet is arranged on the precooling bin side wall, a tray is arranged in front of the precooling return air inlet, and a galvanized round pipe is arranged in front of the precooling bin side wall; steel ropes are arranged on both sides of the tray, one end of each steel rope is fixed to the galvanized round pipe, and the other end is fixed to the precooling bin side wall; and a precooling curtain is arranged on the steel ropes to cover both sides of the tray.
[0006] Further, the galvanized round pipes are parallel to the precooling bin side wall and the ground, the distance between the galvanized round pipe and the precooling bin side wall is 1.5 m, and the distance between the galvanized round pipe and the ground is 2 m.
[0007] Further, the steel ropes are perpendicular to the galvanized round pipe, the steel ropes are perpendicular to the precooling bin side wall, the steel ropes are parallel to the ground, and the distance between the steel ropes and the ground is 2 m.
[0008] Further, the precooling curtain is slidably arranged on the steel ropes.
[0009] Further, a precooling curtain that can be rolled up is arranged above the precooling return air inlet.
[0010] Further, the precooling return air inlet and the tray are arranged correspondingly to the differential pressure fan.
[0011] Further, the pre-cooling warehouse is provided with a pre-cooling warehouse partition wall between the outer wall plate and the side wall of the pre-cooling bin.
[0012] Further, at least one pressure difference fan and at least one cold air fan are arranged in each pre-cooling bin, and the cold air fan is arranged above the pre-cooling bin.
[0013] Further, the number of pressure difference fans is six or four.
[0014] Further, the number of cold air fans is two.
[0015] Compared with the prior art, the pre-cooling warehouse provided with a movable pre-cooling curtain has the beneficial effects that:
[0016] The pre-cooling warehouse provided with a movable pre-cooling curtain can significantly reduce the increase of the rot rate and the weight loss rate of blueberry fruits during storage, reduce the mold and water loss shrinkage of the blueberry fruits, and effectively maintain the quality of the blueberry fruits during the storage and preservation period. In addition, the pre-cooling treatment has a very significant effect on maintaining the soluble solid content, titratable acid content and hardness of the blueberry fruits during the storage period, so that the taste of the blueberry fruits during the storage period is guaranteed. The pre-cooling treatment can also significantly reduce the loss of ascorbic acid of the blueberry fruits during the storage period, and plays a certain role in maintaining the nutritional quality of the blueberry fruits. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of a pre-cooling warehouse provided with a movable pre-cooling curtain.
[0018] Figure 2 It is a structural top view of a pre-cooling warehouse provided with a movable pre-cooling curtain.
[0019] The figure mark: 1-the outer wall plate of the cold storage, 2-the pressure difference fan, 3-the cold air fan, 4-the pre-cooling bin partition wall, 5-the pre-cooling return air outlet, 6-the pre-cooling bin side wall, 7-the steel rope, 8-the pre-cooling curtain, 9-the galvanized round pipe, 10-the tray. DETAILED DESCRIPTION
[0020] It is to be understood that the terms "first" and "second" and similar relating terms are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Also, the terms "comprising", "containing", or any other similar words are intended to encompass non-exclusive inclusion, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.
[0021] The features and performances of the present application will be further described in detail below in combination with embodiments.
[0022] Please refer to Figure 1 and Figure 2 A pre-cooling warehouse provided with a movable pre-cooling curtain, comprising a cold storage outer wall plate 1, a pre-cooling warehouse side wall 6 and a pre-cooling curtain 8, the cold storage outer wall plate 1 is arranged in parallel with a pre-cooling warehouse side wall 6, at least one pressure difference fan 2 and at least one cold air fan 3 are arranged on the cold storage outer wall plate 1; a pre-cooling return air inlet 5 is arranged on the pre-cooling warehouse side wall 6, a tray 10 is arranged in front of the pre-cooling return air inlet 5, and a galvanized round pipe 9 is arranged in front of the pre-cooling warehouse side wall 6; steel ropes 7 are arranged on both sides of the tray 10, one end of the steel ropes 7 is fixed on the galvanized round pipe 9, and the other end is fixed on the pre-cooling warehouse side wall 6; the pre-cooling curtain 8 covering both sides of the tray 10 is arranged on the steel ropes 7.
[0023] The pre-cooling treatment can significantly reduce the increase of the rot rate and the weight loss rate of the blueberry fruits during storage, reduce the mold and water loss shrinkage of the blueberry fruits, and effectively maintain the quality of the blueberry fruits during the storage and preservation period. In addition, the pre-cooling treatment also has a very significant effect on maintaining the soluble solid content, titratable acid content and hardness of the blueberry fruits during the storage period, so that the taste of the blueberry fruits during the storage period is guaranteed. The pre-cooling treatment can also significantly reduce the loss of ascorbic acid of the blueberry fruits during the storage period, and plays a certain role in maintaining the nutritional quality of the blueberry fruits.
[0024] The galvanized round pipes 9 are parallel to the pre-cooling warehouse side wall 6 and the ground, the distance between the galvanized round pipes 9 and the pre-cooling warehouse side wall 6 is 1.5 m, and the distance between the galvanized round pipes 9 and the ground is 2 m.
[0025] The steel ropes 7 are perpendicular to the galvanized round pipes 9, the steel ropes 7 are perpendicular to the pre-cooling warehouse side wall 6, the steel ropes 7 are parallel to the ground, and the distance between the steel ropes 7 and the ground is 2 m.
[0026] Pre-cooling curtain 8 is slidably arranged on steel rope 7. A pre-cooling curtain 8 is arranged above pre-cooling air return port 5 and can be rolled. The pre-cooling curtain 8 can be manually slid to cover the left and right sides and the upper part of the blueberry basket, reduce the air leakage on both sides of tray 10, and improve the efficiency (i.e. pre-cooling efficiency) of pressure difference fan 2. When pre-cooling is not performed, the curtain is slid to be retracted to the position close to the pre-cooling bin side wall, without occupying space.
[0027] Pre-cooling air return port 5 and tray 10 are arranged corresponding to pressure difference fan 2. A pre-cooling bin partition wall 4 is arranged between freezer outer wall panel 1 and pre-cooling bin side wall 6, and the pre-cooling bin partition wall 4 separates adjacent pre-cooling air return ports 5 to form a pre-cooling bin.
[0028] At least one pressure difference fan 2 and at least one cold air fan 3 are arranged in each pre-cooling bin, and the cold air fan 3 is arranged above the pre-cooling bin. The number of pressure difference fans 2 is six or four. The number of cold air fans 3 is two.
[0029] Working principle: first, the hoisted cold air fan 3 in the freezer is started to cool, and then the cold air blown out during cooling is forcibly sucked back by the pressure difference fan 2. During this process, the upper part and the left and right sides of the blueberry basket on tray 10 are covered by pre-cooling curtain 8. The rapidly flowing cold air must pass through the blueberry tray shielding the pre-cooling air return port. When the cold air is forcibly passed, the heat between the blueberries will be quickly taken away, the core temperature of the blueberries will be quickly reduced, and then the cold air will be sucked into the pressure difference fan, and finally blown to the return air area of the hoisted cold air fan 3, and then cooled by the cold air fan 3 and blown out again, forming a pre-cooling air flow circulation.
[0030] In actual blueberry pre-cooling operation, a blueberry tray 10 to be pre-cooled is pushed to the pre-cooling air return port, the pre-cooling roller curtain at the upper end is lowered to cover the upper part of the blueberry tray 10, and the pre-cooling curtains 8 on the left and right sides of the pre-cooling air return port are slid to cover the left and right sides of the blueberry tray 10. After the shielding is tight, the cold air fan is turned on at the same time, and the pressure difference pre-cooling fan corresponding to the pre-cooling air return port 5 is started to pre-cool.
[0031] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the technical concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application.
Claims
1. A precooling room provided with a mobile precooling curtain, characterized in that, The application relates to a cold storage outer wall plate (1), a precooling bin side wall (6) and a precooling curtain (8), wherein the cold storage outer wall plate (1) is arranged in parallel with the precooling bin side wall (6), at least one pressure difference fan (2) and at least one cold air fan (3) are arranged on the cold storage outer wall plate (1); a precooling return air inlet (5) is arranged on the precooling bin side wall (6), a tray (10) is arranged in front of the precooling return air inlet (5), a galvanized round pipe (9) is arranged in front of the precooling bin side wall (6); steel ropes (7) are arranged on both sides of the tray (10), one end of the steel ropes (7) is fixed on the galvanized round pipe (9), and the other end of the steel ropes (7) is fixed on the precooling bin side wall (6); the precooling curtains (8) covering the left and right sides of the tray (10) are arranged on the steel ropes (7).
2. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The galvanized round pipes (9) are parallel to the precooling bin side wall (6) and the ground, the distance between the galvanized round pipe (9) and the precooling bin side wall (6) is 1.5 m, and the distance between the galvanized round pipe (9) and the ground is 2 m.
3. The precooling room provided with a mobile precooling curtain according to claim 2, characterized in that, The steel ropes (7) are perpendicular to the galvanized round pipes (9), the steel ropes (7) are perpendicular to the precooling bin side wall (6), the steel ropes (7) are parallel to the ground, and the distance between the steel ropes (7) and the ground is 2 m.
4. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The precooling curtains (8) are slidably arranged on the steel ropes (7).
5. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The precooling return air inlets (5) are provided with the precooling curtains (8) which can be rolled up.
6. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The precooling return air inlets (5) and the trays (10) are arranged correspondingly with the pressure difference fans (2).
7. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, Precooling bin partition walls (4) are arranged between the cold storage outer wall plate (1) and the precooling bin side wall (6), the precooling bin partition walls (4) separate adjacent precooling return air inlets (5) to form at least two precooling bins.
8. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, At least one pressure difference fan (2) and at least one cold air fan (3) are arranged in each precooling bin, and the cold air fan (3) is arranged above the precooling bin.
9. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The number of the pressure difference fans (2) is six or four.
10. The precooling room provided with a mobile precooling curtain according to claim 1, characterized in that, The number of the cold air fans (3) is two.