congealing point and pour point tester

Abstract

The utility model discloses a kind of freezing point and pour point determinators, including heat preservation box body, heat preservation box body upper installation has heat preservation box cover, cold trap body is installed in the middle part of heat preservation box body inner chamber, cold trap cover is installed in heat preservation box cover, the main part middle part of cold trap cover is equipped with sealing ring, sealing ring is sealed at the connecting place of cold trap cover and cold trap body, cold trap cover is compressed by the two quick clamps of left-right symmetry setting, quick clamp is fixed on heat preservation box cover by bolt, the opposite inner end of two quick clamps is equipped with swing arm, the opposite outer end of two quick clamps is equipped with handle. The freezing point and pour point determinator provided by the utility model can quickly complete the locking and unlocking of cold trap cover without the aid of other tools, improve detection efficiency, also can fundamentally reduce heat conduction, ensure detection accuracy, and can reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to a pour point and freezing point tester, belonging to the technical field of low-temperature flow performance testing equipment. Background Technology

[0002] The pour point tester is a specialized device used for testing the low-temperature flow properties of petroleum products (such as lubricating oil, diesel oil, and fuel oil). It mainly measures the pour point (the temperature at which the oil becomes cloudy or solid particles precipitate) and the lowest temperature at which the oil completely stops flowing. It is used in oil refineries, power plants, aviation, and other fields.

[0003] When using the pour point tester, the cold trap cover needs to be manually opened to add the sample. After the test, the cold trap cover needs to be manually opened to take the sample. During the test, the cold trap needs to be kept sealed and insulated. The cold trap cover needs to be locked to prevent gas and temperature conduction.

[0004] The commonly used method for locking cold trap covers is to press a flat sealing gasket with metal bolts. This fixing method has the following technical problems: 1. Cumbersome operation: Bolts must be tightened and loosened before and after each inspection. Multiple bolts must be tightened or loosened alternately to prevent thread jamming. After the cold trap cover is removed, the flat sealing gasket must be manually removed. The operation is not intuitive or quick, and is time-consuming. Special tools are required for both tightening and loosening the bolts.

[0005] 2. Poor insulation effect: In order to achieve effective locking, the threads of metal bolts are often relatively long, which will conduct some of the temperature inside the cold trap insulation layer out, causing temperature fluctuations inside the cold trap and affecting the detection accuracy and repeatability.

[0006] 3. High maintenance costs: Locking threads are usually fixed to the insulation layer or cold trap body. If the threads are damaged or the bolts are stuck due to improper operation, the test cannot be completed. Furthermore, the replacement of major components is complicated and basically cannot be repaired. Replacement is the only option, which is extremely costly.

[0007] 4. Parts are easily lost: When the cold trap cover is removed, it will be placed at an angle, and the locking bolts are easy to slip off and be lost. The flat sealing gasket is also easy to lose when placed alone, which causes trouble for the testing personnel.

[0008] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0009] This invention addresses the shortcomings of the prior art by providing a pour point and freezing point tester that can quickly lock and unlock the cold trap cover without the need for other tools, thereby improving testing efficiency, fundamentally reducing heat conduction, ensuring testing accuracy, and lowering maintenance costs.

[0010] To solve the above technical problems, the present invention adopts the following technical solution: The pour point and freezing point tester includes an insulated chamber, an insulated chamber cover installed on top of the insulated chamber, a cold trap body installed in the middle of the inner cavity of the insulated chamber, a cold trap cover installed inside the insulated chamber cover, and a sealing ring fitted in the middle of the main body of the cold trap cover. The sealing ring seals the connection between the cold trap cover and the cold trap body. The cold trap cover is clamped by two quick clamps arranged symmetrically on the left and right.

[0011] Furthermore, the quick clamp is fixed to the insulated box lid by bolts.

[0012] Furthermore, both quick clamps have swing arms at their inner ends and handles at their outer ends.

[0013] Furthermore, the cold trap body is wrapped around its perimeter with insulating material.

[0014] Furthermore, the cold trap body has a placement slot with an open top, in which a sample cup is placed, and the top of the sample cup is lower than the top of the cold trap body.

[0015] Furthermore, the insulated box cover has a through-hole in the middle, which is used for the longitudinal placement of the cold trap cover.

[0016] Furthermore, the cold trap cover is made of non-metallic material, and its top height is higher than that of the insulated box cover.

[0017] Furthermore, steps for quick clamping are provided on the left and right sides of the cold trap cover.

[0018] Furthermore, the sealing ring is an O-ring made of low-temperature resistant material, and the sealing ring is fitted into the groove in the middle of the cold trap cover.

[0019] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This utility model has a simple structure and operation. The entire process only requires operating the handle of the quick clamp to lock and unlock the cold trap cover within seconds, without the need for other tools. The quick clamp is fixed to the cover of the insulated box and does not directly contact the insulation layer inside the insulated box. When the swing arm of the quick clamp is pressed, it only contacts the top of the cold trap cover and does not contact the cold trap body and the insulation layer, which fundamentally reduces heat conduction. The sealing ring is fitted in the middle of the cold trap cover and moves with the cold trap cover. It does not need to be removed or placed separately before and after testing, saving time and improving efficiency. If the quick clamps and sealing rings become loose or fail to seal properly after prolonged use, they can be replaced individually. The replacement process is simple and inexpensive.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is an exploded view of the structure of this utility model.

[0022] In the figure, 1-insulation box cover, 101-placement hole; 2-insulation box body; 3-cold trap cover, 301-step; 4-cold trap body; 5-sealing ring; 6-quick clamp; 7-swing arm; 8-handle; 9-sample cup. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0024] like Figures 1-3 As shown in the figure, this utility model provides a pour point and freezing point tester, including an insulated box 2, an insulated box cover 1 installed on the top of the insulated box 2, a cold trap body 4 installed in the middle of the inner cavity of the insulated box 2, a cold trap cover 3 installed inside the insulated box cover 1, a sealing ring 5 sleeved in the middle of the body of the cold trap cover 3, the sealing ring 5 sealing the connection between the cold trap cover 3 and the cold trap body 4, and the cold trap cover 3 being pressed by two quick clamps 6 arranged symmetrically on the left and right.

[0025] The cold trap body 4 is wrapped with insulation material on all sides to keep it warm.

[0026] The cold trap body 4 has a placement slot with an open top, and a sample cup 9 is placed in the placement slot. The top height of the sample cup 9 is lower than the top height of the cold trap body 4.

[0027] The insulated box cover 1 has a through-hole 101 in the middle, which is used for the longitudinal placement of the cold trap cover 3.

[0028] The cold trap cover 3 is made of non-metallic material, and its top height is higher than that of the insulated box cover 1.

[0029] The cold trap cover 3 has steps 301 on its left and right sides for quick clamping by the clamps 6.

[0030] The sealing ring 5 is an O-ring made of low-temperature resistant material, which is fitted into the groove in the middle of the cold trap cover 3 as an accessory to the cold trap cover 3.

[0031] The quick clamps 6 are fixed to the insulated box cover 1 by bolts. Both quick clamps 6 have swing arms 7 at their inner ends and handles 8 at their outer ends.

[0032] When the handle 8 is pressed down, the swing arm 7 presses the cold trap cover 3 tightly, and the cold trap cover 3 compresses the sealing ring 5 to deform, thus achieving the sealing function.

[0033] The specific working principle of this utility model is as follows: Before the test begins, place the sample cup 9 into the cold trap body 4. Lift the handle 8 of the quick clamp 6 upwards, place the cold trap cover 3 (with sealing ring 5) above the cold trap body 4, and press down the handle 8 of the quick clamp 6 to a horizontal position. The sealing ring 5 is compressed, completing the locking and sealing. When the test is complete, lift the handle 8 of the quick clamp 6 upwards again. The swing arm 7 will then lift upwards, allowing you to remove the cold trap cover 3 (with sealing ring 5) and take out the sample cup 9. The test is now complete.

[0034] This utility model has a simple structure and operation. The entire process only requires operating the handle of the quick clamp to lock and unlock the cold trap cover within seconds, without the need for other tools.

[0035] The quick clamp is fixed to the cover of the insulated box and does not directly contact the insulation layer inside the insulated box. When the swing arm of the quick clamp is pressed, it only contacts the top of the cold trap cover and does not contact the cold trap body and the insulation layer, which fundamentally reduces heat conduction.

[0036] The sealing ring is fitted in the middle of the cold trap cover and moves with the cold trap cover. It does not need to be removed or placed separately before and after testing, saving time and improving efficiency.

[0037] If the quick clamps and sealing rings become loose or fail to seal properly after prolonged use, they can be replaced individually. The replacement process is simple and inexpensive.

[0038] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A pour point and freezing point tester, characterized in that: The device includes an insulated box body (2), an insulated box cover (1) installed on top of the insulated box body (2), a cold trap body (4) installed in the middle of the inner cavity of the insulated box body (2), a cold trap cover (3) installed inside the insulated box cover (1), a sealing ring (5) fitted in the middle of the main body of the cold trap cover (3), the sealing ring (5) seals the connection between the cold trap cover (3) and the cold trap body (4), and the cold trap cover (3) is pressed by two quick clamps (6) arranged symmetrically on the left and right.

2. The pour point and freezing point apparatus as described in claim 1, characterized in that: The quick clamp (6) is fixed to the insulated box cover (1) by bolts.

3. The pour point and freezing point apparatus as described in claim 2, characterized in that: Both quick clamps (6) have a swing arm (7) at their inner ends facing each other, and both quick clamps (6) have a handle (8) at their outer ends facing each other.

4. The pour point and freezing point apparatus as described in claim 1, characterized in that: The cold trap body (4) is wrapped with insulation material on all sides.

5. The pour point and freezing point apparatus as described in claim 1, characterized in that: The cold trap body (4) has a placement slot with an open top, and a sample cup (9) is placed in the placement slot. The top height of the sample cup (9) is lower than the top height of the cold trap body (4).

6. The pour point and freezing point apparatus as described in claim 1, characterized in that: The insulated box cover (1) has a through-hole (101) in the middle position, which is used for the longitudinal placement of the cold trap cover (3).

7. The pour point and freezing point apparatus as described in claim 1, characterized in that: The cold trap cover (3) is made of non-metallic material, and its top height is higher than that of the insulated box cover (1).

8. The pour point and freezing point apparatus as described in claim 1, characterized in that: The cold trap cover (3) is provided with steps (301) on the left and right sides for quick clamping (6).

9. The pour point and freezing point apparatus as described in claim 1, characterized in that: The sealing ring (5) is an O-ring made of low-temperature resistant material, and the sealing ring (5) is fitted into the groove in the middle of the cold trap cover (3).

Images