Rapeseed oil anti-freezing performance testing device

Abstract

The utility model relates to the related technical field of grease performance detection, in particular to a rapeseed oil anti-freezing performance testing device which comprises a testing cylinder body, a sealing end cover, a control box body, a magnetic stirring seat and a refrigeration assembly, and the testing cylinder body comprises a testing inner cylinder, a testing outer cylinder, an oil inlet and an oil outlet. The refrigeration assembly comprises a refrigeration unit and a refrigeration module, and further comprises a photoelectric sensor and a temperature sensor which are arranged in an inner cavity of the sealing end cover. According to the rapeseed oil anti-freezing performance testing device, the refrigeration assembly provides a low-temperature environment, the magnetic stirring seat ensures that a sample is uniform, the photoelectric sensor and the temperature sensor monitor the sample state and the environment temperature in real time, accurate detection of the crystallization state and turbidity of the rapeseed oil sample is achieved, and the testing accuracy and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of oil property detection processing, especially relates to a rapeseed oil anti -freezing performance testing device. BACKGROUND

[0002] Rapeseed oil is prone to crystallization, turbidity and even solidification in low temperature environment, which affects its quality and processing performance.

[0003] In the related art, a rapeseed oil processing high-efficiency freezing device with the publication number CN117165362A includes a first condenser and a spiral condensate pipe vertically arranged in the first condenser. The top of the first condenser is provided with a first branch pipe of a cooling water inlet pipe. The bottom of the first condenser is a conical structure. The lower end of the conical structure is provided with a cooling water outlet. A vertical rotating rod is arranged in the first condenser through a support. A stirring branch rod is equidistantly arranged on the vertical rotating rod. The vertical rotating rod and the stirring branch rod are located inside the spiral condensate pipe. The lower end of the vertical rotating rod extends into the cooling water outlet. A plurality of inclined plates are circumferentially arranged on the rod body of the vertical rotating rod located in the cooling water outlet. The freezing device adopts a high-pressure condensate spiral through the condenser filled with cooling water to realize rapid heat exchange between the cooling water and the condensate. Meanwhile, a stirring structure driven by the outward cooling water is creatively arranged in the condenser, which has the advantages of high refrigeration efficiency and strong practicality.

[0004] The oil solidification point detection device in the above-mentioned technology has a complex structure when freezing rapeseed oil, and is not optimized for the characteristics of high unsaturated fatty acids in rapeseed oil. INVENTION CONTENTS

[0005] The utility model solves the problems in the related art and provides a rapeseed oil anti-freezing performance testing device. A refrigeration assembly provides a low-temperature environment. A magnetic stirring seat ensures uniform samples. A photoelectric sensor and a temperature sensor monitor the sample state and the environmental temperature in real time. The accurate detection of the crystallization state and turbidity of the rapeseed oil sample is realized, and the accuracy and reliability of the test are improved.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme: a rapeseed oil anti-freezing performance testing device includes a test cylinder, a sealing end cover arranged on the upper end face of the test cylinder, a control box body fixedly arranged on the upper end face of the sealing end cover, a magnetic stirring seat arranged on the lower end face of the test cylinder, and a refrigeration assembly arranged in the test cylinder.

[0007] The test cylinder includes a test inner cylinder for storing test rapeseed oil, a test outer cylinder arranged on the outer periphery of the test inner cylinder, an oil inlet penetratingly connected to the test outer cylinder and the test inner cylinder, and an oil outlet penetratingly connected to the test outer cylinder and the test inner cylinder.

[0008] The refrigeration assembly comprises a refrigeration unit arranged between the test inner cylinder and the test outer cylinder, and a refrigeration module for refrigerating the refrigeration unit;

[0009] The photoelectric sensor is used to collect the turbidity threshold of the rapeseed oil sample and determine the crystallization state of the rapeseed oil sample, and the temperature sensor is used to detect the test temperature in the test cylinder in real time.

[0010] By adopting the above technical scheme, the refrigeration assembly provides a low-temperature environment, the magnetic stirring seat ensures uniformity of the sample, the photoelectric sensor and the temperature sensor monitor the sample state and the environmental temperature in real time, accurate detection of the crystallization state and turbidity of the rapeseed oil sample is realized, and the accuracy and reliability of the test are improved.

[0011] As a preferred scheme, a polyurethane foaming insulation layer is filled between the test outer cylinder and the refrigeration unit, and the thermal conductivity of the polyurethane foaming insulation layer is ≤0.02 W / m·K.

[0012] By adopting the above technical scheme, the refrigeration unit is responsible for providing cold energy, and the temperature is reduced to the required temperature for testing.

[0013] As a preferred scheme, a transparent conductive film is additionally arranged on the outer periphery of the test outer cylinder, the transparent conductive film is arranged as an ITO coating, and the surface temperature is maintained to be higher than the dew point temperature after being electrified.

[0014] By adopting the above technical scheme, the transparent conductive film (such as an ITO coating) is used to maintain the surface temperature to be higher than the dew point temperature after being electrified, so as to avoid condensation water droplets on the outer surface of the test outer cylinder due to the temperature difference between the inside and the outside, and ensure the stability and accuracy of the test environment.

[0015] As a preferred scheme, the refrigeration unit comprises a cold guide plate arranged on the outer periphery of the test inner cylinder, a refrigeration plate uniformly arranged on the outer periphery of the cold guide plate, and a heat-conducting silicone grease arranged between the refrigeration plate and the test inner cylinder, the refrigeration plate is composed of a plurality of refrigerant circulation pipes in communication with each other, and the refrigeration plate is connected to the refrigeration module.

[0016] By adopting the above technical scheme, the refrigeration module takes away the heat transferred by the heat conduction plate through phase change heat absorption of the refrigerant in the refrigerant circulation pipe, and realizes the rapid refrigeration effect on the test inner cylinder.

[0017] By adopting the above technical scheme, therefore, the refrigeration plate is uniformly arranged on the outer periphery of the heat conduction plate and is composed of a plurality of refrigerant circulation pipes in communication with each other, is connected with the refrigeration module, and utilizes the refrigerant in the refrigerant circulation pipe to perform phase change heat absorption and cooling to directly absorb the heat transferred by the heat conduction plate. The heat-conducting silicone grease is filled between the refrigeration plate and the test inner cylinder to improve the heat conduction efficiency therebetween and ensure that the heat can be rapidly transferred from the test inner cylinder to the refrigeration plate.

[0018] As a preferred scheme, the refrigeration module comprises a first circulation pipe communicating with the upper end surface of the refrigeration plate, a second circulation pipe communicating with the lower end surface of the refrigeration plate, and an evaporator arranged between the first circulation pipe and the second circulation pipe, and the first circulation pipe is arranged above the horizontal plane of the second circulation pipe.

[0019] By adopting the above technical scheme, the first circulation pipe communicating with the upper end surface of the refrigeration plate guides the refrigerant to flow out of the refrigeration plate and leads the refrigerant to the evaporator. The first circulation pipe is arranged above the second circulation pipe to ensure that the refrigerant can flow smoothly. The second circulation pipe is responsible for sending the refrigerant cooled by the evaporator back to the refrigeration plate to continue the cooling process. The evaporator arranged in the middle is the key link of refrigeration, which absorbs the heat transferred from the refrigeration plate by evaporating the refrigerant to change the refrigerant from liquid state to gas state, so as to achieve the purpose of cooling. This design makes the refrigerant continuously evaporate, absorb heat and condense again in the circulation process, and finally takes away the heat, thereby realizing the high-efficiency refrigeration effect.

[0020] As a preferred scheme, additionally, a circulating pump is arranged on the second circulation pipe, and the circulating pump is connected with the second circulation pipe through a connecting flange.

[0021] By adopting the above technical scheme, the arrangement of the circulating pump effectively improves the circulation stability of the refrigerant and ensures the efficiency and reliability of the system operation. After the refrigerant is cooled, it is rapidly sent into the refrigeration plate by the circulating pump, thereby improving the efficiency of rapid cooling of the system. Overall, the circulating pump not only ensures the flowability of the refrigerant, but also optimizes the running state of the whole system, thereby ensuring the stability and timeliness of the refrigeration effect. Through a series of actions, the whole refrigeration system can work efficiently and stably to provide reliable refrigeration performance.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1. The test cylinder is used for storing rapeseed oil sample, and the rapeseed oil is realized in and out through the oil inlet and the oil outlet; the upper portion of the sealing end cover is provided with a control box for control operation, and the lower portion is provided with a magnetic stirring seat for stirring the rapeseed oil sample, so that the test is uniform; the refrigeration assembly is matched with the refrigeration unit and the refrigeration module to realize refrigeration and cooling of the test inner cylinder, so that the constant experimental conditions are ensured.

[0024] 2. The photoelectric sensor and the temperature sensor are arranged in the sealing end cover; the photoelectric sensor is used for detecting the turbidity threshold of the rapeseed oil sample and judging the crystallization state; and the temperature sensor is used for monitoring the temperature in the test cylinder.

[0025] 3. The refrigeration module provides refrigeration conditions for the refrigeration unit, so that the test cylinder maintains a suitable low-temperature environment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure schematic view of the rapeseed oil anti-freezing performance testing device of the utility model;

[0027] Figure 2 is the structure schematic view of the rapeseed oil anti-freezing performance testing device of the utility model when the local section view is assembled.

[0028] Figure 3 is the structure schematic view of the refrigeration assembly in the rapeseed oil anti-freezing performance testing device of the utility model;

[0029] Figure 4 is the structure schematic view of the refrigeration assembly in the rapeseed oil anti-freezing performance testing device of the utility model; Figure 3 of the A place enlarged view.

[0030] In the drawings:

[0031] 100-control box, 11-test outer cylinder, 12-test inner cylinder, 121-anti-fogging shell, 1211-charging interface, 21-magnetic stirring seat, 22-sealing end cover, 3-refrigeration assembly, 31-cold guide plate, 32-refrigeration plate, 33-heat-conducting silicone grease, 411-oil inlet, 412-oil outlet, 5-evaporator, 51-first circulating pipeline, 52-second circulating pipeline, 521-circulating pump. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative in nature and in no way should be construed as any limitation on the present application and its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0034] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not intended to limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the example embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not necessary once an item is defined in one drawing.

[0035] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0036] For purposes of the description hereinafter, spatially relative terms, such as "above", "below", "up", "down", "between", "within", "left", "right", "rear", "front", "upper", "lower", "horizontal", "vertical", "above", "below", "top", "bottom", "under", and the like, can be used for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is inverted or rotated by 90 degrees, then an element described as "above" or "up" another element or feature would now be oriented "below" or "down" the other element or feature. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc., are used herein to distinguish one element from another, and are not intended to signify location or importance of the individual elements.

[0037] In addition, it should be noted that the use of "first", "second", etc. words to qualify parts, is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the utility model.

[0038] As shown in Figures 1 to 4 A rapeseed oil anti-freezing performance testing device, comprising a test cylinder, a sealing end cover 22 arranged on the upper end face of the test cylinder, a control box 100 fixedly arranged on the upper end face of the sealing end cover 22, a magnetic stirring seat 21 arranged on the lower end face of the test cylinder, and a refrigeration assembly 3 arranged in the test cylinder;

[0039] For details, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The test cylinder comprises a test inner cylinder 12 for storing test rapeseed oil, a test outer cylinder 11 arranged on the outer periphery of the test inner cylinder 12, an oil inlet 411 penetrating the test outer cylinder 11 and the test inner cylinder 12, and an oil outlet 412 penetrating the test outer cylinder 11 and the test inner cylinder 12;

[0040] For details, please refer to Figure 2 、 Figure 3 and Figure 4 The refrigeration assembly 3 comprises a refrigeration unit arranged between the test inner cylinder 12 and the test outer cylinder 11, and a refrigeration module for refrigerating the refrigeration unit;

[0041] For details, please refer to Figure 2The utility model also comprises a photoelectric sensor and a temperature sensor arranged in the inner cavity of the sealing end cover 22, the photoelectric sensor is used for collecting the turbidity threshold of the rapeseed oil sample and judging the crystallization state of the rapeseed oil sample, the temperature sensor is used for detecting the test temperature in the test cylinder body in real time, and the photoelectric sensor and the temperature sensor are electrically connected to the control box 100; in the utility model, the refrigeration assembly 3 provides a low-temperature environment, the magnetic stirring base 21 ensures uniformity of the sample, the photoelectric sensor and the temperature sensor monitor the sample state and the ambient temperature in real time, accurate detection of the crystallization state and the turbidity of the rapeseed oil sample is realized, and the accuracy and reliability of the test are improved.

[0042] Specifically refer to Figure 2 、 Figure 3 and Figure 4 , the test outer cylinder 11 and the refrigeration unit are filled with a polyurethane foaming insulation layer, the thermal conductivity of the polyurethane foaming insulation layer is ≤0.02 W / m·K, the refrigeration unit is responsible for providing cold quantity, and the temperature is reduced to the required temperature of the test; wherein the polyurethane foaming insulation layer filled between the two has a very low thermal conductivity (≤0.02 W / m·K), can effectively block the temperature difference between the inside and outside, and keep the stability and accuracy of the test environment.

[0043] Specifically refer to Figure 2 , in addition, the transparent conductive film is arranged on the outer periphery of the test outer cylinder 11, the transparent conductive film is arranged as an ITO coating, and the surface temperature is maintained to be greater than the dew point temperature after electrification, the transparent conductive film (such as ITO coating) is used to maintain the surface temperature to be higher than the dew point temperature after electrification, so that the condensate water droplets on the outer surface of the test outer cylinder 11 due to the temperature difference between the inside and outside are avoided, and the stability and accuracy of the test environment are ensured. When the transparent conductive film is electrified, the surface temperature can be controlled to be at a high level, preventing the water vapor in the external humid air from condensing on the low-temperature outer cylinder surface, thereby affecting the reliability of the test result.

[0044] Specifically refer to Figure 2 、 Figure 3 and Figure 4 , the refrigeration unit comprises a cold lead plate 31 arranged on the outer periphery of the test inner cylinder 12, a refrigeration plate 32 uniformly arranged on the outer periphery of the cold lead plate 31 and a heat-conducting silicone grease 33 arranged between the refrigeration plate 32 and the test inner cylinder 12, the refrigeration plate 32 is composed of a plurality of refrigerant circulation pipes in communication with each other, the refrigeration plate 32 is connected to a refrigeration module, and the refrigeration module removes the heat transferred by the cold lead plate 31 through the phase change endothermic of the refrigerant in the refrigerant circulation pipe, so that the rapid refrigeration effect of the test inner cylinder 12 is realized.

[0045] Therefore, by uniformly arranging the refrigeration plate 32 on the outer periphery of the heat conduction plate 31, the refrigeration plate 32 is formed by a plurality of refrigerant circulation pipes that are in communication with each other, and by connecting with the refrigeration module, the phase change heat absorption cooling is carried out by using the refrigerant in the refrigerant circulation pipe to directly absorb the heat transferred by the heat conduction plate 31. The heat-conducting silicone grease 33 is filled between the refrigeration plate 32 and the test inner cylinder 12 to improve the heat conduction efficiency between the two, and to ensure that the heat can be quickly transferred from the test inner cylinder 12 to the refrigeration plate 32.

[0046] For details, please refer to Figure 1 and Figure 2 The refrigeration module includes a first circulation pipe 51 connected to the upper end surface of the refrigeration plate 32, a second circulation pipe 52 connected to the lower end surface of the refrigeration plate 32, and an evaporator 5 arranged between the first circulation pipe 51 and the second circulation pipe 52. The first circulation pipe 51 is arranged above the horizontal plane of the second circulation pipe 52 and is connected to the upper end surface of the refrigeration plate 32. The first circulation pipe 51 connected to the upper end surface of the refrigeration plate 32 is used to guide the refrigerant to flow out of the refrigeration plate 32 and to the evaporator 5. The first circulation pipe 51 is arranged above the second circulation pipe 52 to ensure smooth flow of the refrigerant. The second circulation pipe 52 is responsible for returning the refrigerant cooled by the evaporator 5 back to the refrigeration plate 32 to continue the cooling process. The evaporator 5 arranged in the middle is the key link of refrigeration, which absorbs heat from the refrigeration plate 32 by evaporating the refrigerant to change the refrigerant from liquid to gas, thereby achieving the purpose of cooling. This design makes the refrigerant evaporate, absorb heat and condense again in the circulation process, and finally take away the heat, thereby achieving high-efficiency refrigeration effect.

[0047] For details, please refer to Figure 1 and Figure 2 In order to ensure the stability of the refrigerant circulation, a circulation pump 521 is additionally arranged on the second circulation pipe 52. The circulation pump 521 is connected to the second circulation pipe 52 through a connecting flange. The arrangement of the circulation pump 521 effectively improves the circulation stability of the refrigerant and ensures the efficiency and reliability of the system operation. After the refrigerant is cooled, it is quickly sent to the refrigeration plate 32 by the circulation pump 521, which improves the efficiency of the system for rapid cooling. Overall, the circulation pump 521 not only ensures the flowability of the refrigerant, but also optimizes the operating state of the entire system, ensuring the stability and timeliness of the refrigeration effect. Through a series of actions, the entire refrigeration system can work efficiently and stably, providing reliable refrigeration performance.

[0048] In the embodiment, in use, the first circulation pipeline 51 in communication with the upper end face of the refrigeration plate 32 functions to guide the refrigerant to flow out of the refrigeration plate 32 and to be introduced into the evaporator 5. The first circulation pipeline 51 is arranged above the second circulation pipeline 52 to ensure smooth flow of the refrigerant. The second circulation pipeline 52 is responsible for sending the refrigerant cooled in the evaporator 5 back to the refrigeration plate 32 to continue the cooling process. The evaporator 5 arranged in the middle is a key link of the refrigeration, which absorbs the heat transferred from the refrigeration plate 32 by evaporating the refrigerant to change the refrigerant from liquid state to gaseous state, so as to achieve the purpose of cooling. The refrigeration plate 32 is evenly arranged on the outer periphery of the heat conduction plate 31 and is composed of a plurality of refrigerant circulation pipelines in communication with each other, which is connected with the refrigeration module to perform phase change heat absorption and cooling by using the refrigerant in the refrigerant circulation pipeline to directly absorb the heat transferred by the heat conduction plate 31. The heat-conducting silicone grease 33 is filled between the refrigeration plate 32 and the test inner cylinder 12 to improve the heat conduction efficiency therebetween and to ensure that the heat can be quickly transferred from the test inner cylinder 12 to the refrigeration plate 32.

[0049] The above is the preferred embodiment of the present application, and the person skilled in the art of the present application can also change and modify the above embodiment, therefore, the present application is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by the person skilled in the art on the basis of the present application belongs to the protection scope of the present application.

Claims

1. A device for testing the antifreeze properties of rapeseed oil, characterized in that: It includes a test cylinder, a sealing end cap (22) disposed on the upper end face of the test cylinder, a control box (100) fixedly disposed on the upper end face of the sealing end cap (22), a magnetic stirring seat (21) disposed on the lower end face of the test cylinder, and a refrigeration component (3) disposed in the test cylinder. The test cylinder includes an inner test cylinder (12) for storing test rapeseed oil, an outer test cylinder (11) disposed on the outer periphery of the inner test cylinder (12), an oil inlet (411) that passes through the outer test cylinder (11) and connects to the inner test cylinder (12), and an oil outlet (412) that passes through the outer test cylinder (11) and connects to the inner test cylinder (12). The refrigeration assembly (3) includes a refrigeration unit disposed between the inner test cylinder (12) and the outer test cylinder (11) and a refrigeration module for refrigerating the refrigeration unit.

2. The rapeseed oil antifreeze performance testing device according to claim 1, characterized in that: It also includes a photoelectric sensor and a temperature sensor disposed in the inner cavity of the sealed end cap (22). The photoelectric sensor is used to collect the turbidity threshold of the rapeseed oil sample and determine the crystallization state of the rapeseed oil sample. The temperature sensor is used to detect the test temperature in the test cylinder in real time. The photoelectric sensor and the temperature sensor are electrically connected to the control box (100).

3. The rapeseed oil antifreeze performance testing device according to claim 2, characterized in that: The outer test cylinder (11) and the refrigeration unit are filled with a polyurethane foam insulation layer, the thermal conductivity of which is ≤0.02W / m·K.

4. The rapeseed oil antifreeze performance testing device according to claim 3, characterized in that: It also includes a transparent conductive film disposed on the outer periphery of the test outer cylinder (11), the transparent conductive film being configured as an ITO coating, and maintaining a surface temperature greater than the dew point temperature after being energized.

5. The rapeseed oil antifreeze performance testing device according to claim 4, characterized in that: The refrigeration unit includes a cooling plate (31) disposed on the outer periphery of the test inner cylinder (12), a refrigeration plate (32) uniformly disposed on the outer periphery of the cooling plate (31), and thermal grease (33) disposed between the refrigeration plate (32) and the test inner cylinder (12).

6. The rapeseed oil antifreeze performance testing device according to claim 5, characterized in that: The refrigeration plate (32) is composed of several interconnected refrigerant circulation pipes, and the refrigeration plate (32) is externally connected to the refrigeration module.

7. The rapeseed oil antifreeze performance testing device according to claim 6, characterized in that: The refrigeration module includes a first circulation pipe (51) connected to the upper end face of the refrigeration plate (32), a second circulation pipe (52) connected to the lower end face of the refrigeration plate (32), and an evaporator (5) disposed between the first circulation pipe (51) and the second circulation pipe (52). The first circulation pipe (51) is disposed above the horizontal plane of the second circulation pipe (52).

8. The rapeseed oil antifreeze performance testing device according to claim 7, characterized in that: It also includes a circulation pump (521) installed on the second circulation pipe (52), which is connected to the second circulation pipe (52) via a connecting flange.

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