Experimental device for detecting deterioration of food-grade heat conduction oil

Abstract

The utility model discloses an experimental device for detecting deterioration of food-grade heat-conducting oil, which belongs to the technical field of heat-conducting oil quality detection and comprises an equipment body, the equipment body comprises a lower base, an upper base is arranged above the lower base, a fixing block is arranged at the center of the upper base in a penetrating manner, and a through hole is formed in the center of the fixing block. The upper base and the lower base are connected through a plurality of connecting columns, the connecting columns are arranged at the four corners of the upper base respectively, a connecting plate is arranged between every two opposite connecting columns, a moving rod is arranged on each connecting plate in a penetrating mode, the moving rods and U-shaped grooves formed in the connecting plates are arranged in a sliding mode, and one side of each moving rod is connected with a control structure. The control structures on the two sides penetrate through the fixing blocks and are arranged in the through holes, the test tubes are coaxially arranged in the through holes of the fixing blocks, and the moving rods push and drive the control structures to move, so that the test balls fall downwards along the centers of the test tubes.

Description

Technical Field

[0001] This utility model belongs to the field of heat transfer oil quality testing technology, specifically relating to an experimental device for detecting the deterioration of food-grade heat transfer oil. Background Technology

[0002] Food-grade heat transfer oil is a heat transfer medium made from ester compounds or food-grade base oils. It is non-toxic, odorless, non-corrosive, and has a high flash point (some products can reach over 300℃). It is also not easily decomposed or volatilized at high temperatures and has excellent environmental performance. For heat transfer oils used for a long time, it is necessary to monitor their kinematic viscosity in order to monitor their flowability and heat transfer efficiency.

[0003] Existing methods for testing heat transfer oils mainly include the disc rotation method, titration method, pipeline flow method, and rotational viscometer method. Currently, when using the oil sample drop ball test to test the viscosity of heat transfer oils, the operator manually inserts the test ball into the inlet of the test tube, allowing it to fall freely downwards along the center of the tube. The time it takes for the test ball to fall freely is then measured to calculate the kinematic viscosity of the heat transfer oil. However, manually controlling the free fall of the test ball makes it difficult to ensure that it falls freely downwards along the center of the tube. Therefore, the operator needs to manually adjust the position of the test ball to ensure that it falls downwards along the center of the tube. This operation is cumbersome and complex, and it is also impossible to guarantee that the test ball will fall freely downwards along the center of the tube. This results in inaccurate measurement of the fall time, which in turn affects the overall test result of the kinematic viscosity of the heat transfer oil. Utility Model Content

[0004] The purpose of this invention is to provide an experimental device for detecting the deterioration of food-grade heat transfer oil, so as to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an experimental device for detecting the deterioration of food-grade heat transfer oil, comprising a device body, the device body including a lower base, and an upper base disposed above the lower base. A fixing block is disposed through the center of the upper base, and a through hole is opened at the center of the fixing block. The upper base and the lower base are connected by multiple connecting columns, and the connecting columns are respectively disposed at the four corners of the upper base. A connecting plate is disposed between two opposite connecting columns. A moving rod is disposed through the connecting plate, and the moving rod is slidably disposed with a U-shaped groove opened in the connecting plate. A control structure is connected to one side of the moving rod, and the control structures on both sides are disposed through the fixing block and in the through hole. A test tube is coaxially disposed in the through hole of the fixing block. The moving rod pushes and drives the control structure to move, causing the test ball to fall downward along the center of the test tube.

[0006] Preferably, the lower base is provided with a fixing platform, and the fixing platform is provided with a spherical groove for fixing the test tube.

[0007] Preferably, the control structure includes a moving block, a control spring, an electromagnet, and a discharge rod. The moving block is fixedly mounted on one side of the moving rod and is positioned within a rectangular slot on the connecting plate. The other end of the moving block is connected to the control spring, and the end of the control spring away from the moving rod is connected to the electromagnet. The moving rod passes through the moving block and is fixedly connected to the electromagnet. A discharge rod is provided on one side of the electromagnet, and the discharge rod is made of conductive material. One end of the discharge rod has an arc-shaped slot for placing a test ball. When the electromagnet is energized, it attracts the discharge rod. By pulling the moving rod, the electromagnet compresses the control spring, causing the front end of the discharge rod to move out of the fixed block through the through hole, placing the test ball in the arc-shaped slot. The elastic potential energy of the control spring pushes the discharge rod, fixing the test ball at the center position above the test tube.

[0008] Preferably, a ball storage groove is provided on one side of the fixing block, and a ball dispensing component is provided in the ball storage groove. The ball dispensing component includes a sealing plate, a connecting spring, and a pusher plate. The sealing plate is located at the bottom of the ball storage groove, and the sealing plate is detachably connected to the ball storage groove. A connecting spring is provided on one side of the sealing plate, and a pusher plate is connected to the end of the connecting spring away from the sealing plate. In the initial state, the connecting spring is in a compressed state, and multiple test balls are placed on top of the pusher plate.

[0009] Preferably, in the initial state, the discharge rod on one side of the ball storage tank blocks the test ball, and the maximum length of the discharge rod extending into the through hole is half the length of the fixed block.

[0010] The technical effects and advantages of this utility model are as follows: Before the heat transfer oil viscosity test begins, the lower base is fixed on a horizontal platform, and the parallelism between the lower base and the platform is adjusted to ensure that the test ball can fall vertically downwards, thus ensuring the accuracy of the measurement results. By energizing the electromagnet, it attracts the discharge rod. At this time, the moving rod is manually pulled outwards, causing the electromagnet to compress the control spring. The electromagnet pulls the discharge rod, and during this movement, the test ball in the storage tank moves upwards due to the elastic potential energy of the connecting spring. Then, the moving rod is slowly released, and the arc-shaped groove at the front end of the moving rod attracts the test ball. The two discharge rods move simultaneously towards the center of the test tube, ensuring the test ball is centered. After the electromagnet is de-energized, the discharge rod no longer attracts the test ball, and the test ball moves downwards along the center of the test tube due to its own weight, ensuring the test ball moves along the center of the tube. This ensures the accuracy of the free fall time of the test ball, avoids deviations in the calculated kinematic viscosity of the heat transfer oil, and improves the efficiency of kinematic viscosity detection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model viewed from bottom to top;

[0013] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0014] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 5 This utility model Figure 4 A magnified view of a section at point B in the middle.

[0016] In the picture:

[0017] 1. Equipment body; 11. Upper base; 111. Fixing block; 112. Ball storage tank; 113. Through hole; 12. Connecting column; 13. Lower base; 14. Fixing platform; 2. Test tube; 3. Connecting plate; 31. U-shaped groove; 32. Rectangular groove; 4. Moving rod; 5. Control structure; 51. Moving block; 52. Control spring; 53. Electromagnet; 54. Discharge rod; 541. Arc groove; 6. Test ball; 7. Ball discharge component; 71. Sealing plate; 72. Connecting spring; 73. Push plate; Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figures 1 to 5The experimental apparatus shown is used to detect the deterioration of food-grade heat transfer oil. It includes a device body 1, which includes a lower base 13 and an upper base 11 above the lower base 13. A fixing block 111 is installed through the center of the upper base 11, and a through hole 113 is opened at the center of the fixing block 111. The upper base 11 and the lower base 13 are connected by multiple connecting columns 12, which are respectively located at the four corners of the upper base 11. A connecting plate 3 is installed between two opposite connecting columns 12. A moving rod 4 is installed through the connecting plate 3 and is slidably installed with a U-shaped groove 31 opened in the connecting plate 3. A control structure 5 is connected to one side of the moving rod 4. Both sides of the control structure 5 are installed through the fixing block 111 and are installed in the through hole 113. A test tube 2 is coaxially installed in the through hole 113 of the fixing block 111. The moving rod 4 pushes and drives the control structure 5 to move, so that the test ball 6 falls downward along the center of the test tube 2.

[0020] Specifically, a fixing platform 14 is provided on the lower base 13, and a spherical groove for fixing the test tube 2 is provided on the fixing platform 14.

[0021] Specifically, the control structure 5 includes a moving block 51, a control spring 52, an electromagnet 53, and a discharge rod 54. The moving block 51 is fixedly mounted on one side of the moving rod 4 and is positioned within a rectangular slot 32 on the connecting plate 3. The other end of the moving block 51 is connected to the control spring 52, and the end of the control spring 52 away from the moving rod 4 is connected to the electromagnet 53. The moving rod 4 passes through the moving block 51 and is fixedly connected to the electromagnet 53. A discharge rod 54 is provided on one side of the electromagnet 53. 54 is made of conductive material. One end of the discharge rod 54 has an arc-shaped groove 541 for placing the test ball 6. When the electromagnet 53 is energized, the electromagnet 53 attracts the discharge rod 54. By pulling the moving rod 4, the electromagnet 53 is driven to compress the control spring 52, so that the front end of the discharge rod 54 moves out of the fixing block 111 from the through hole 113. The test ball 6 is placed in the arc-shaped groove 541. The elastic potential energy of the control spring 52 pushes the discharge rod 54, fixing the test ball 6 at the center position above the test tube 2.

[0022] Specifically, a ball storage trough 112 is provided on one side of the fixed block 111, and a ball outlet component 7 is provided in the ball storage trough 112. The ball outlet component 7 includes a sealing plate 71, a connecting spring 72, and a pusher plate 73. The sealing plate 71 is located at the bottom of the ball storage trough 112, and the sealing plate 71 is detachably connected to the ball storage trough 112. A connecting spring 72 is provided on one side of the sealing plate 71, and the end of the connecting spring 72 away from the sealing plate 71 is connected to the pusher plate 73. In the initial state, the connecting spring 72 is in a compressed state, and multiple test balls 6 are placed on top of the pusher plate 73.

[0023] Specifically, in the initial state, the discharge rod 54 on one side of the ball storage tank 112 blocks the test ball 6, and the maximum length of the discharge rod 54 extending into the through hole 113 is half the length of the fixed block 111.

[0024] Specifically, the lengths of the moving groove 11 and the limiting protrusion 12 are consistent with the maximum length between the clamping plate 23 and the fixing plate 24.

[0025] Working principle and process: Before the heat transfer oil viscosity test begins, the lower base 13 is fixed on the horizontal platform, and the parallelism between the lower base 13 and the horizontal platform is adjusted to ensure that the test ball 6 can fall vertically downwards, thus ensuring the accuracy of the measurement results. Then, the operator places the bottom end of the test tube 2 containing heat transfer oil into the spherical groove on the fixed platform 14, and installs the top tube of the test tube 2 coaxially with the through hole 113 of the fixed block 111, thus ensuring that the test tube 2 and the lower base 13 are vertical. After the test tube 2 is fixed, the heat transfer oil in the test tube 2 is heated by an external heating device. After heating to the test temperature, the operator energizes the electromagnet 53. At this time, the operator manually pulls the moving rod 4 set on the connecting plates 3 on both sides. The moving rod 4 is pulled outwards, and the moving rod 4 drives the electromagnet 53 to press the control spring 52 against the moving block 51. At the same time, the electromagnet 53 can drive the discharge rod. When the discharge rod 54 moves outward, the test ball 6 in the ball storage tank 112 moves to the side of the ball storage tank 112. At this time, the elastic potential energy of the connecting spring 72 pushes the pusher plate 73 upward. The pusher plate 73 moves upward, pushing the test ball 6 upward into the chamber where the discharge rod 54 is placed. At this time, the moving rod 4 is slowly released. The discharge rod 54 moves towards the through hole 113 due to the elastic potential energy of the control spring 52. Since the discharge rod 54 is in contact with the electromagnet 53, the test ball 6 can be attracted in the arc groove 541. When the arc grooves 541 of the two discharge rods 54 are in contact, the test ball 6 is fixed at the center of the test tube 2. At this time, the power supply to the electromagnet 53 is canceled. The test ball 6 falls freely downward due to its own weight. During the free fall, the operator times the fall time and calculates the kinematic viscosity of the test ball 6 based on the measured data to determine whether the heat transfer oil has deteriorated.

[0026] After the measurement is completed, the moving rod 4 can be pulled up and down to move the moving block 51 within the rectangular groove 32. At this time, the moving rod 4 can be pushed to make the electromagnet 53 adhere to the test tube 2. After the electromagnet 53 is energized, the test ball 6 inside the test tube 2 can be attracted. After attraction, the moving rod 4 is moved upward to the outlet of the test tube 2. The operator can then remove the test ball 6 using a specific tool. Since the sealing plate 71 and the ball storage tank 112 are detachably connected, the sealing plate 71 can be removed and the test ball 6 can be placed into the ball storage tank 112 for collection, thereby avoiding the loss of the test ball 6 and completing the overall kinematic viscosity test of the heat transfer oil.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An experimental apparatus for detecting deterioration of food-grade heat transfer oil, comprising a device body (1), characterized in that, The device body (1) includes a lower base (13), and an upper base (11) is provided above the lower base (13). A fixing block (111) is provided through the center of the upper base (11), and a through hole (113) is provided at the center of the fixing block (111). The upper base (11) and the lower base (13) are connected by multiple connecting posts (12), and the connecting posts (12) are respectively provided at the four corners of the upper base (11). A connecting plate (3) is provided between two connecting posts (12). (3) A movable rod (4) is provided through the upper part, and the movable rod (4) is slidably arranged with the U-shaped groove (31) opened on the connecting plate (3). A control structure (5) is connected to one side of the movable rod (4). Both sides of the control structure (5) are arranged in the through hole (113) through the fixing block (111). The test tube (2) is coaxially arranged in the through hole (113) of the fixing block (111). The movable rod (4) pushes and drives the control structure (5) to move, so that the test ball (6) falls down along the center of the test tube (2).

2. The experimental set-up for detecting deterioration of food grade heat transfer oil as claimed in claim 1 wherein: The lower base (13) is provided with a fixed platform (14), and the fixed platform (14) is provided with a spherical groove for fixing the test tube (2).

3. The experimental set-up for detecting deterioration of food grade heat transfer oil as claimed in claim 1 wherein: The control structure (5) includes a moving block (51), a control spring (52), an electromagnet (53), and a discharge rod (54). The moving block (51) is fixedly mounted on one side of the moving rod (4) and is located in a rectangular slot (32) on the connecting plate (3). The other end of the moving block (51) is connected to the control spring (52), and the end of the control spring (52) away from the moving rod (4) is connected to the electromagnet (53). The moving rod (4) passes through the moving block (51) and is fixedly connected to the electromagnet (53). A discharge rod (54) is provided on one side of the electromagnet (53), and the discharge rod (54) is located on the other side of the moving rod (53). The feeding rod (54) is made of conductive material. One end of the feeding rod (54) is provided with an arc-shaped groove (541) for placing the test ball (6). When the electromagnet (53) is energized, the electromagnet (53) attracts the feeding rod (54). By pulling the moving rod (4), the electromagnet (53) is driven to compress the control spring (52), so that the front end of the feeding rod (54) moves out of the fixing block (111) from the through hole (113). The test ball (6) is placed in the arc-shaped groove (541). The elastic potential energy of the control spring (52) is used to push the feeding rod (54) to fix the test ball (6) at the center position above the test tube (2).

4. The experimental apparatus for detecting deterioration of food-grade heat transfer oil according to claim 3, characterized in that: The fixed block (111) has a ball storage groove (112) on one side, and a ball outlet (7) is provided in the ball storage groove (112). The ball outlet (7) includes a sealing plate (71), a connecting spring (72) and a pusher plate (73). The sealing plate (71) is located at the bottom of the ball storage groove (112), and the sealing plate (71) and the ball storage groove (112) are detachably connected. A connecting spring (72) is provided on one side of the sealing plate (71), and a pusher plate (73) is connected to the end of the connecting spring (72) away from the sealing plate (71). In the initial state, the connecting spring (72) is in a compressed state, and multiple test balls (6) are placed on top of the pusher plate (73).

5. The experimental set-up for detecting deterioration of food grade heat transfer oil as claimed in claim 4 wherein: In the initial state, the discharge rod (54) on one side of the ball storage tank (112) blocks the test ball (6), and the maximum length of the discharge rod (54) extending into the through hole (113) is half the length of the fixed block (111).

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