Energy-saving device for refrigeration house

Abstract

The utility model belongs to the technical field of refrigeration equipment, and particularly relates to an energy-saving device for a refrigeration house. By transforming the air cooler in the refrigeration house and utilizing the characteristic of low outdoor temperature in winter in the north, the advantage of natural cooling is brought into full play, and the operation energy consumption of the refrigeration house in transition seasons is reduced; a heating device is additionally arranged for the air cooler, so that purchase of heating equipment is saved while the temperature in the warehouse in winter is guaranteed; a fresh air pipeline is additionally arranged for the air cooler, so that the requirement for ventilation in the warehouse is met, and energy is saved; meanwhile, the device is easy to operate, low in cost, wide in application range, good in application prospect and worthy of popularization; in addition, waste heat generated in some processing workshops and workshops always exists around the refrigeration house and can serve as a heating heat source of the air cooler, the problem that goods in the potato refrigeration house in the northern area in winter are frozen to be damaged is solved, and environmental protection and economic benefits are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and particularly relates to an energy-saving device for a cold storage. Background Art

[0002] With the improvement of people's living standards, the requirements for the quality and safety of food are getting higher and higher. As one of the important facilities for food storage, the operating energy consumption cost of the cold storage accounts for a large part of the entire food storage link.

[0003] The potato cold storage in the northern region is an important facility to ensure the storage quality of potatoes. The storage temperature of potatoes is 2-4°C. In many northern regions, the outdoor temperature during the day in winter is often around -5°C. At this time, the refrigeration system of the cold storage still continues to operate, and at night it will reach -15°C or even lower. At this time, the temperature inside the warehouse will drop below 0°C, resulting in the need to add an additional heating system inside the potato warehouse to ensure that the potatoes will not be frozen. This not only increases the project cost but also greatly wastes energy. Therefore, how to use natural cold to achieve energy-saving operation of the potato cold storage and ensure the storage quality of potatoes has become an urgent problem to be solved.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The purpose of the present utility model is to overcome the above-mentioned disadvantages of the prior art and provide an energy-saving device for a cold storage.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] On the one hand, the present utility model provides an energy-saving device for a cold storage, including a cooling fan installed on the cold storage wall. The cooling fan is provided with three channels. The first channel is an air outlet, the second channel is a return air outlet for internal circulation, and the third channel is fixed with a fresh air duct for external circulation. A heater and an electric control valve for opening and closing the fresh air duct are arranged in the fresh air duct.

[0008] Specifically, a long air duct is fixed at the air outlet.

[0009] Specifically, the long air duct is fixedly distributed at the top of the cold storage.

[0010] Specifically, the long air duct is one of a cloth bag air duct, a plastic air duct, and a stainless steel air duct.

[0011] Specifically, one end of the long air duct far from the cooling fan is closed, and a plurality of air outlet holes are arranged along the axial direction of the long air duct.

[0012] Specifically, a primary filter for filtering air is further arranged between the heater and the electric control valve.

[0013] Specifically, a temperature control unit electrically connected to the air cooler, the heater, and the electric regulating valve is also provided on the wall of the cold storage.

[0014] Specifically, the temperature control unit is provided with a temperature sensor.

[0015] On the other hand, the utility model also provides a method for using the cold storage energy-saving device, which is as follows:

[0016] When the outdoor temperature is higher than 0℃ in summer or winter, the electric regulating valve is closed, the refrigeration system operates normally in the traditional way, the air cooler starts, the air enters from the return air port, passes through the long air duct and blows out from the air outlet, ensuring that the temperature in the cold storage is within the range of 2-4℃;

[0017] When the outdoor temperature is below 0℃ in winter, the electric regulating valve opens, the refrigeration system of the air cooler is closed, the return air outlet is closed, and only the fan blades of the air cooler are kept open. The temperature control unit controls the opening of the electric regulating valve in conjunction with the air flow to allow air to enter from the fresh air inlet, ensuring that the temperature in the cold storage is within the range of 2-4℃.

[0018] If the outdoor temperature is too low, causing the temperature in the cold storage to be lower than 2°C, the temperature control unit controls the electric regulating valve to open and turns on the heater at the same time to ensure that the cold air enters the fresh air duct from the fresh air inlet and is heated by the heater before entering the cold storage through the air cooler. The temperature in the cold storage is maintained at 2-4°C during external circulation, protecting the potatoes from freezing and ensuring air circulation in the cold storage.

[0019] Compared with the prior art, the technical solution provided by the utility model includes the following beneficial effects:

[0020] The utility model transforms the cold air fan in the warehouse, takes advantage of the low outdoor temperature in winter in the north, gives full play to the advantages of natural cooling, and reduces the operating energy consumption of the cold storage in the transition season; the device also adds a heating device to the cold air fan, which ensures the temperature in the warehouse in winter and saves the purchase of heating equipment; the device also adds a fresh air duct to the cold air fan, which not only meets the ventilation requirements in the warehouse, but also saves energy; at the same time, the device is simple to operate, low in cost, and has a wide range of applications. It has a good application prospect and is worthy of promotion;

[0021] Furthermore, there are often some processing workshops around the cold storage. The waste heat generated in the workshops can be used as a heating source for the air cooler, which not only solves the problem of freezing of goods in potato cold storage in northern China in winter, but also improves environmental protection and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is the installation schematic diagram of the present invention.

[0025] Among them: 1 is a cooling fan; 2 is a heater; 3 is a primary filter; 4 is a long air duct; 5 is an air outlet hole; 6 is an electric control valve; 7 is a fresh air inlet; 8 is a temperature sensor; 9 is a return air outlet. Specific embodiments

[0026] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are only examples consistent with some aspects of the present invention detailed in the appended claims.

[0027] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment

[0029] See Figure 1 As shown, this embodiment provides a cold storage energy-saving device, including a cooling fan 1 installed on the wall of the cold storage. There are three channels on the cooling fan 1. The first channel is the air outlet, the second channel is the return air outlet 9 for internal circulation, and the third channel is fixed with a fresh air duct for external circulation. A heater 2 and an electric control valve 6 for opening and closing the fresh air duct are provided in the fresh air duct.

[0030] Specifically, a long air duct 4 is fixed at the air outlet.

[0031] Specifically, the long air duct 4 is fixedly distributed at the top of the cold storage.

[0032] Specifically, the long air duct 4 is one of a cloth bag air duct, a plastic air duct, and a stainless steel air duct.

[0033] Specifically, the end of the long air duct 4 away from the cooling fan is closed, and the long air duct 4 is provided with a plurality of air outlet holes 5 along the axial direction.

[0034] Specifically, a primary filter 3 for filtering air is also provided between the heater 2 and the electric control valve 6.

[0035] Specifically, a temperature control unit electrically connected to the air cooler 1 , the heater 2 , and the electric regulating valve 6 is also provided on the wall of the cold storage.

[0036] Specifically, the temperature control unit is provided with a temperature sensor 8 .

[0037] On the other hand, this embodiment also provides a method for using the cold storage energy-saving device, which is as follows:

[0038] When the outdoor temperature is higher than 0℃ in summer or winter, the electric regulating valve 6 is closed, and the refrigeration system operates normally in the traditional way, that is, the air cooler 1 is started, so that the air enters from the return air port 9, passes through the long air duct 4 and blows out from the air outlet 5, ensuring that the temperature in the cold storage is within the range of 2-4℃;

[0039] When the outdoor temperature is below 0°C in winter, the electric regulating valve 6 is opened, the refrigeration system of the air cooler 1 is closed, the return air port 9 is closed, and only the fan blades of the air cooler 1 are kept open. The temperature control unit controls the opening of the electric regulating valve 6 in a linked manner, so that air enters from the fresh air inlet 7, ensuring that the temperature in the cold storage is within the range of 2 to 4°C.

[0040] If the outdoor temperature is too low, causing the temperature in the cold storage to be lower than 2°C, the temperature control unit controls the electric regulating valve 6 to open and turns on the heater 2 at the same time, to ensure that the cold air enters the fresh air duct from the fresh air inlet 7 and is heated by the heater 2 before entering the cold storage through the air cooler 1, thereby keeping the temperature in the cold storage at 2-4°C during external circulation, ensuring that the potatoes are not frozen and ensuring air circulation in the cold storage.

[0041] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0042] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A cold storage energy-saving device, characterized in that: The invention comprises an air cooler (1) installed on the wall of a cold storage, wherein the air cooler (1) is provided with three channels, wherein the first channel is an air outlet, the second channel is an air return port (9) for internal circulation, and the third channel is fixed with a fresh air duct for external circulation, wherein a heater (2) and an electric regulating valve (6) for opening and closing the fresh air duct are provided in the fresh air duct; The cold storage wall is also provided with a temperature control unit which is electrically connected to the cooling fan (1), the heater (2) and the electric regulating valve (6) respectively; the temperature control unit is provided with a temperature sensor (8).

2. The cold storage energy saving device according to claim 1, characterized in that: A long air duct (4) is fixedly provided at the air outlet.

3. The cold storage energy saving device according to claim 2 is characterized in that: The long air duct (4) is fixedly distributed on the top of the cold storage.

4. The cold storage energy saving device according to claim 2 is characterized in that: The long air duct (4) is one of a bag air duct, a plastic air duct and a stainless steel air duct.

5. The cold storage energy saving device according to claim 2 is characterized in that: The end of the long air duct (4) away from the air cooler is closed, and the long air duct (4) is provided with a plurality of air outlet holes (5) along the axial direction.

6. The cold storage energy saving device according to claim 1, characterized in that: A primary filter (3) for filtering air is also provided between the heater (2) and the electric regulating valve (6).

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