Saturated vapor pressure three-stage expansion testing device

Abstract

The utility model discloses a saturated vapor pressure three-stage expansion testing device which comprises an installation frame, a testing machine is installed on the inner side of the installation frame, a steam cylinder is installed at the top end of the testing machine, a fixed cylinder is installed above the steam cylinder, an insertion cylinder is installed on the outer surface of the installation frame, and a pressure sensor is installed on the insertion cylinder. The detection mechanism comprises a groove formed in the steam cylinder, a movable rod is fixedly connected to the interior of the groove, and a sleeve block is connected to the top end of the movable rod in a sleeving mode. The problems that in the testing process of an existing testing device, workers are difficult to accurately master the steam amount in the operation process, so that judgment and control need to be conducted depending on experience and related equipment, however, when steam in a steam reaction kettle is too much, the workers are inconvenient to observe the steam amount in the steam reaction kettle, and the working efficiency is poor are solved. The pressure in the kettle is increased, the risks of explosion and scalding are increased, and the operation is dangerous.

Description

Technical Field

[0001] The utility model relates to the technical field of vapor testing, in particular to a three-stage expansion testing device for saturated vapor pressure. Background Technique

[0002] The three-stage expansion test for saturated vapor pressure is a method for measuring the vapor pressure of liquid chemicals at a specific temperature. This method is applicable to volatile liquid chemicals, especially petroleum products, hydrocarbons and their oxygenated compound mixtures. The principle of the three-stage expansion method is to inject a known volume of sample into a test cylinder with a piston and temperature control. After sealing, the sample volume is expanded to more than twice the original in three steps, and the total pressure value after each stage of expansion is measured, so as to calculate the saturated vapor pressure of the sample.

[0003] However, it still has the following disadvantages in actual use:

[0004] During the testing process of the existing testing device, it is very difficult for the staff to accurately master the amount of steam during the operation. Therefore, it is necessary to rely on experience and relevant equipment for judgment and control. However, when there is too much steam in the steam reaction kettle, it is inconvenient for the staff to observe the amount of steam inside the steam reaction kettle, resulting in an increase in the pressure inside the kettle, increasing the risks of explosion and scalding, and the operation is dangerous. Summary of the Invention

[0005] The purpose of the utility model is to provide a three-stage expansion testing device for saturated vapor pressure to solve the problem that during the testing process of the existing testing device, it is very difficult for the staff to accurately master the amount of steam during the operation. Therefore, it is necessary to rely on experience and relevant equipment for judgment and control. However, when there is too much steam in the steam reaction kettle, it is inconvenient for the staff to observe the amount of steam inside the steam reaction kettle, resulting in an increase in the pressure inside the kettle, increasing the risks of explosion and scalding, and the operation is dangerous as mentioned in the above background technique.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a three-stage expansion test device for saturated vapor pressure, which comprises a mounting rack. A testing machine is installed inside the mounting rack. A steam cylinder is installed at the top end of the testing machine. A fixed cylinder is installed above the steam cylinder. An insertion cylinder is installed on the outer surface of the mounting rack. The device further comprises a detection mechanism: The detection mechanism includes a groove arranged inside the steam cylinder. A movable rod is fixedly connected inside the groove. A sleeve block is sleeved at the top end of the movable rod. A reset assembly is sleeved on the outer surface of the movable rod. A fixed rod is installed at one side of the fixed cylinder at the top end of the steam cylinder. A rotating rod is arranged on the outer surface of the fixed rod. A connecting rod is rotatably connected inside the rotating rod. A rotating assembly is installed at the bottom end of the connecting rod. The bottom end of the fixed rod is rotatably connected with a rotating ring. A screw block is threadedly connected to the outer surface of the connecting rod. A conductive plate is fixedly connected to one end of the screw block. A connecting assembly is installed at the top end of the sleeve block; A mounting mechanism: The mounting mechanism is arranged outside the insertion cylinder.

[0008] Further, the mounting mechanism includes mounting boxes arranged on both sides of the insertion cylinder. A mounting rod is rotatably connected inside the mounting box. A driving assembly is fixedly connected to one end of the mounting rod. A sleeve plate is threadedly connected to the other end of the mounting rod. A clamping ring is fixedly connected to one end of the sleeve plate. A concave plate is slidably connected above the mounting box. A threaded groove is arranged at the center of the top end of the concave plate. A bolt is threadedly connected inside the threaded groove.

[0009] Further, the driving assembly includes a connecting gear arranged at one end of the mounting rod. A tooth groove is arranged on the outer side of one end of the concave plate. The mounting rod and the connecting gear are meshed.

[0010] Further, threads are arranged on the outer surface of the mounting rod. A threaded groove is arranged inside the sleeve plate. An extension opening is arranged on the inner side wall of the insertion cylinder.

[0011] Further, the reset assembly includes a compression spring arranged on the outer surface of the movable rod. The compression spring is arranged inside the sleeve block.

[0012] Further, the rotating assembly includes a rotating gear arranged at the bottom end of the connecting rod. Tooth patterns are arranged on the inner side wall of the rotating ring. The rotating ring and the rotating gear are meshed.

[0013] Further, the connecting assembly includes a metal sheet arranged above the sleeve block. The metal sheet and the conductive plate are electrically connected. Threads are arranged on the outer surface of the connecting rod.

[0014] Compared with the prior art, the advantages of the utility model are as follows:

[0015] The utility model is provided with a detection mechanism. The staff can rotate the rotating ring rotatably connected to the bottom end of the fixed rod according to the temperature value to be detected, so that the rotating ring drives the rotating gear rotatably connected inside the fixed rod to rotate during the rotation process. When the rotating gear rotates, it drives the connecting rod fixedly connected to the top end to rotate. When the connecting rod rotates, it drives the screw block threadedly connected to the top end to move up and down inside the lifting groove, and the position of the conductive plate fixedly connected to one end can be adjusted. When the steam in the fixed cylinder reaches a certain amount, the steam enters the inside of the groove and pushes the sleeve block, so that the sleeve block slides on the top end of the movable rod and squeezes the compression spring sleeved on the outer surface of the movable rod at the same time. At the same time, the metal sheet at the top end of the sleeve block contacts the conductive plate, and the alarm electrically connected to the conductive plate can work to provide a warning function for the staff.

[0016] Based on the above beneficial effects, an installation mechanism is provided. After the steam pipe is installed as described above, the staff can rotate the bolt rotatably connected to the top end of the insertion cylinder, so that the concave plate threadedly connected to the outer surface is driven to descend during the rotation of the bolt. At the same time, both ends of the concave plate are inserted into the installation box, and one end of the concave plate slides to drive the connecting gear engaged on one side to rotate. When the connecting gear rotates, it drives the installation rod fixedly connected to one side to rotate. When the installation rod rotates, it drives the sleeve plate threadedly connected to one end to slide along the guiding track of the extension port, so that the clamping ring fixedly connected to one end can slide and extend to the inner side of the insertion cylinder to clamp the outer surface of the steam pipe inserted into the inside of the insertion cylinder, and steam leakage can be prevented from affecting the data obtained from the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is an axonometric view of the present utility model;

[0019] Figure 2 It is a side sectional view of the present utility model;

[0020] Figure 3 It is another axonometric view of the present utility model;

[0021] Figure 4 It is yet another axonometric view of the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Mounting frame; 2. Testing machine; 3. Steam cylinder; 4. Fixed cylinder; 5. Sleeve block; 6. Fixed rod; 7. Swivel ring; 8. Rotating rod; 9. Conductive plate; 10. Alarm; 11. Screw block; 12. Compression spring; 13. Movable rod; 14. Rotating gear; 15. Connecting rod; 16. Groove; 17. Bolt; 18. Concave plate; 19. Connecting gear; 20. Mounting rod; 21. Sleeve plate; 22. Clamping ring; 23. Insertion cylinder; 24. Installation box. Detailed implementation manners

[0024] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation manners disclosed below.

[0026] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will further describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0027] Please refer to Figures 1-4 As shown, this embodiment is a three-stage expansion test device for saturated vapor pressure, including a mounting frame 1. A testing machine 2 is installed inside the mounting frame 1. A steam cylinder 3 is installed at the top of the testing machine 2. A fixed cylinder 4 is installed above the steam cylinder 3. An insertion cylinder 23 is installed on the outer surface of the mounting frame 1. It also includes a detection mechanism: The detection mechanism includes a groove 16 arranged inside the steam cylinder 3. A movable rod 13 is fixedly connected inside the groove 16. A sleeve block 5 is sleeved on the top of the movable rod 13. A reset component is sleeved on the outer surface of the movable rod 13. A fixed rod 6 is installed on one side of the top of the steam cylinder 3 and located inside the fixed cylinder 4. A rotating rod 8 is provided on the outer surface of the fixed rod 6. A connecting rod 15 is rotatably connected inside the rotating rod 8. A rotating component is installed at the bottom of the connecting rod 15. The bottom of the fixed rod 6 is rotatably connected to a swivel ring 7. A screw block 11 is threadedly connected to the outer surface of the connecting rod 15. One end of the screw block 11 is fixedly connected to a conductive plate 9. A connecting component is installed at the top of the sleeve block 5; A mounting mechanism: The mounting mechanism is arranged outside the insertion cylinder 23.

[0028] As the main body bearing structure, the detection mechanism can increase the detection accuracy of the overall structure by being fixedly connected to the whole device.

[0029] The reset component includes a compression spring 12 arranged on the outer surface of the movable rod 13. The compression spring 12 is arranged inside the sleeve block 5.

[0030] The reset component is arranged so that the sleeve block 5 can contract and reset after the steam power disappears.

[0031] The rotating component includes a rotating gear 14 arranged at the bottom end of the connecting rod 15. The inner side wall of the rotating ring 7 is provided with tooth threads, and the rotating ring 7 and the rotating gear 14 are meshed and connected.

[0032] The rotating component is arranged so that the rotating ring 7 can rotate to drive the rotating gear 14 to rotate.

[0033] The connecting component includes a metal sheet arranged above the sleeve block 5. The metal sheet and the conductive plate 9 are electrically connected, and the outer surface of the connecting rod 15 is provided with threads.

[0034] The connecting component is arranged so that the sleeve block 5 and the conductive plate 9 can be in contact to drive the alarm 10 to work.

[0035] Working principle: The staff rotates the rotating ring 7 rotatably connected to the bottom end of the fixed rod 6 according to the temperature value to be detected, so that the rotating ring 7 can drive the rotating gear 14 rotatably connected inside the fixed rod 6 to rotate during the rotation process. When the rotating gear 14 rotates, it drives the connecting rod 15 fixedly connected to the top end to rotate. When the connecting rod 15 rotates, it drives the screw block 11 threadedly connected to the top end to move up and down inside the lifting groove, and the position of the conductive plate 9 fixedly connected to one end with the screw block 11 can be adjusted. When the steam inside the fixed cylinder 4 reaches a certain amount, the steam enters the inside of the groove 16 and pushes the sleeve block 5, so that the sleeve block 5 slides on the top end of the movable rod 13 while squeezing the compression spring 12 sleeved on the outer surface of the movable rod 13. At the same time, the metal sheet at the top end of the sleeve block 5 and the conductive plate 9 are in contact, and the alarm 10 electrically connected to the conductive plate 9 can work to provide a warning function for the staff.

[0036] Please refer to Figures 1-4 As shown in the figure, on the basis of the above-mentioned Embodiment 1, this embodiment further includes an installation mechanism. The installation mechanism includes installation boxes 24 arranged on both sides of the insertion cylinder 23. An installation rod 20 is rotatably connected inside the installation box 24. A driving component is fixedly connected to one end of the installation rod 20. A sleeve plate 21 is threadedly connected to the other end of the installation rod 20. A clamping ring 22 is fixedly connected to one end of the sleeve plate 21. A concave plate 18 is slidably connected above the installation box 24. A threaded groove is opened at the center of the top end of the concave plate 18, and a bolt 17 is threadedly connected inside the threaded groove.

[0037] The driving component includes a connecting gear 19 arranged at one end of the installation rod 20. A tooth groove is opened on the outer side of one end of the concave plate 18, and the installation rod 20 and the connecting gear 19 are meshed and connected.

[0038] The outer surface of the installation rod 20 is provided with threads. A threaded groove is opened inside the sleeve plate 21. An extension port is opened on the inner side wall of the insertion cylinder 23.

[0039] The reset component includes a compression spring 12 arranged on the outer surface of the movable rod 13, and the compression spring 12 is arranged inside the sleeve block 5.

[0040] The rotation component includes a rotation gear 14 arranged at the bottom end of the connecting rod 15, and tooth patterns are arranged on the inner side wall of the rotating ring 7. The rotating ring 7 and the rotation gear 14 are meshed and connected.

[0041] The connection component includes a metal sheet arranged above the sleeve block 5. The metal sheet and the conductive plate 9 are electrically connected, and threads are arranged on the outer surface of the connecting rod 15.

[0042] Working principle: The staff can rotate the bolt 17 rotatably connected to the top end of the insertion cylinder 23, so that during the rotation of the bolt 17, the concave plate 18 threadedly connected to the outer surface is driven to descend. At the same time, both ends of the concave plate 18 are inserted into the installation box 24. At the same time, one end of the concave plate 18 slides to drive the connecting gear 19 meshed on one side to rotate. During the rotation of the connecting gear 19, the installation rod 20 fixedly connected to one side is driven to rotate. During the rotation of the installation rod 20, the sleeve plate 21 threadedly connected to one end slides along the guiding track of the extension port, so that the clamping ring 22 fixedly connected to one end can slide and extend into the inner side of the insertion cylinder 23 to clamp the outer surface of the steam pipe inserted into the inner part of the insertion cylinder 23.

[0043] This step can prevent steam leakage from affecting the data obtained from the test.

[0044] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A three - stage expansion test device for saturated vapor pressure, comprising a mounting frame (1), a testing machine (2) is installed inside the mounting frame (1), a steam cylinder (3) is installed at the top of the testing machine (2), a fixed cylinder (4) is installed above the steam cylinder (3), and an insertion cylinder (23) is installed on the outer surface of the mounting frame (1), characterized in that, Further included are: Detection mechanism: The detection mechanism includes a groove (16) provided inside the steam cylinder (3). A movable rod (13) is fixedly connected inside the groove (16). A sleeve block (5) is sleeved on the top end of the movable rod (13). A reset assembly is sleeved on the outer surface of the movable rod (13). A fixed rod (6) is installed on one side of the fixed cylinder (4) at the top end of the steam cylinder (3). A rotating rod (8) is provided on the outer surface of the fixed rod (6). A connecting rod (15) is rotatably connected inside the rotating rod (8). A rotating assembly is installed at the bottom end of the connecting rod (15). The bottom end of the fixed rod (6) is rotatably connected to a rotating ring (7). A screw block (11) is threadedly connected to the outer surface of the connecting rod (15). A conductive plate (9) is fixedly connected to one end of the screw block (11). A connecting assembly is installed at the top end of the sleeve block (5); Installation mechanism: The installation mechanism is arranged outside the insertion cylinder (23).

2. The saturated vapor pressure three-stage expansion test device according to claim 1, wherein, The installation mechanism includes installation boxes (24) provided on both sides of the insertion cylinder (23). An installation rod (20) is rotatably connected inside the installation box (24). A driving assembly is fixedly connected to one end of the installation rod (20). A sleeve plate (21) is threadedly connected to the other end of the installation rod (20). A clamping ring (22) is fixedly connected to one end of the sleeve plate (21). A concave plate (18) is slidably connected above the installation box (24). A threaded groove is provided at the center of the top end of the concave plate (18). A bolt (17) is threadedly connected inside the threaded groove.

3. The saturated vapor pressure three-stage expansion test device according to claim 2, wherein, The driving assembly includes a connecting gear (19) provided at one end of the installation rod (20). A tooth groove is provided on the outer side of one end of the concave plate (18). The installation rod (20) and the connecting gear (19) are meshed.

4. A saturated vapor pressure three-stage expansion test device according to claim 2, characterized in that, Threads are provided on the outer surface of the installation rod (20). A threaded groove is provided inside the sleeve plate (21). An extension port is provided on the inner side wall of the insertion cylinder (23).

5. A saturated vapor pressure three-stage expansion test device according to claim 1, characterized in that, The reset assembly includes a compression spring (12) provided on the outer surface of the movable rod (13). The compression spring (12) is arranged inside the sleeve block (5).

6. The saturated vapor pressure three-stage expansion test device according to claim 1, characterized in that, The rotating assembly includes a rotating gear (14) provided at the bottom end of the connecting rod (15). Tooth patterns are provided on the inner side wall of the rotating ring (7). The rotating ring (7) and the rotating gear (14) are meshed.

7. The saturated vapor pressure three-stage expansion test device according to claim 1, characterized in that, The connecting assembly includes a metal sheet provided above the sleeve block (5). The metal sheet and the conductive plate (9) are electrically connected. Threads are provided on the outer surface of the connecting rod (15).

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