Pressure detection device of water vaporization heat experimental instrument

Abstract

The utility model relates to a pressure detection device of a water vaporization heat experimental instrument, which comprises an instrument body, the top of the instrument body is provided with a detection mechanism, the detection mechanism comprises a detection cylinder in threaded connection with the instrument body, and the inner top wall of the detection cylinder is fixedly connected with a contact pressure sensor. And an extrusion block located at the bottom of the contact type pressure sensor is slidably connected to the interior of the detection cylinder, and the contact type pressure sensor and the extrusion block are sleeved with a telescopic spring fixedly connected with the detection cylinder. According to the pressure detection device of the water vaporization heat experimental instrument, through the arrangement of the detection mechanism, the pressure of the water vaporization heat experimental instrument can be conveniently detected, the exhaust and warning functions are added, the protection effect on the water vaporization heat experimental instrument is improved, and the problems that an existing pressure detection device is relatively single in function, does not have the exhaust and warning functions, and is inconvenient to use are solved. And the protection effect on the water vaporization heat experimental instrument is relatively poor.

Description

Technical Field

[0001] The utility model relates to the technical field of water vaporization heat experimental instruments, in particular to a pressure detection device of a water vaporization heat experimental instrument. Background Art

[0002] The heat of vaporization of water is the heat absorbed by a unit mass of liquid when it turns into gas at the same temperature. The heat of vaporization is a physical property of a substance. It is defined as the heat required to evaporate one mole of a substance at a certain temperature under normal circumstances. For a substance, it is a function of temperature. The heat of vaporization is also called the heat of evaporation. Together with the heat of fusion and the heat of sublimation, it is collectively called phase change heat or latent heat.

[0003] At present, in the test of water vaporization heat, water vaporization heat experimental instrument is usually used to conduct the test of water vaporization heat. In order to understand the pressure changes in the practical process of water vaporization heat experimental instrument, the pressure inside the water vaporization heat experimental instrument is detected by a pressure detection device.

[0004] However, the existing pressure detection device has a relatively simple function, does not have the function of exhaust and warning, and has a relatively poor protective effect on the water vaporization heat experimental instrument. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a pressure detection device for a water vaporization heat experimental instrument, which has the advantages of detection, protection, multi-function and practicality. It solves the problem that the existing pressure detection devices have relatively single functions, lack of exhaust and warning functions, and have relatively poor protection effect on the water vaporization heat experimental instrument.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure detection device of a water vaporization heat experiment instrument, comprising an instrument body, a detection mechanism is arranged on the top of the instrument body;

[0007] The detection mechanism comprises a detection cylinder threadedly connected to the instrument body, the inner top wall of the detection cylinder is fixedly connected to a contact pressure sensor, the interior of the detection cylinder is slidably connected to an extrusion block located at the bottom of the contact pressure sensor, the contact pressure sensor and the extrusion block are externally sleeved with a telescopic spring fixedly connected to the detection cylinder, the bottom of the extrusion block is fixedly connected to a piston disk fixedly connected to the telescopic spring, and the outside of the piston disk is fixedly connected to a sealing ring tightly fitted to the detection cylinder;

[0008] The detection mechanism also includes a humidity sensor fixedly connected to the detection cylinder, a processor fixedly connected to the left side of the detection cylinder, an exhaust pipe fixedly connected to the right side of the detection cylinder, an exhaust valve is arranged inside the exhaust pipe, and a detection indicator light and a buzzer are arranged on the front side of the detection cylinder.

[0009] Furthermore, a communication hole is provided on the top of the instrument body, and the detection cylinder is connected with the instrument body through the communication hole.

[0010] Furthermore, sliders are fixedly connected to the left and right sides of the extrusion block, and the extrusion block is slidably connected to the detection cylinder via the sliders.

[0011] Further, the contact pressure sensor is signal-connected to a processor, and the processor is electrically connected to an exhaust valve.

[0012] Furthermore, an exhaust hole is opened on the right side of the detection cylinder, and the exhaust pipe is connected with the detection cylinder through the exhaust hole.

[0013] Further, the humidity sensor is signal-connected to a processor, and the processor is electrically connected to a buzzer.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The pressure detection device of the water vaporization heat experiment instrument is convenient for detecting the pressure of the water vaporization heat experiment instrument by setting a detection mechanism, and adds exhaust and warning functions, thereby improving the protection effect of the water vaporization heat experiment instrument, and solves the problem that the existing pressure detection device has a relatively single function, does not have the exhaust and warning functions, and has a relatively poor protection effect on the water vaporization heat experiment instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 2 It is a front view of the structure of the utility model.

[0018] In the figure: 1. Instrument body; 101. Connecting hole; 2. Detection tube; 201. Detection indicator light; 3. Contact pressure sensor; 4. Extrusion block; 401. Slider; 5. Telescopic spring; 6. Piston disc; 601. Sealing ring; 7. Humidity sensor; 8. Processor; 9. Exhaust pipe; 10. Exhaust valve; 11. Buzzer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2. A pressure detection device of a water vaporization heat experiment instrument in this embodiment includes an instrument body 1, and a detection mechanism is arranged on the top of the instrument body 1.

[0021] In this embodiment, the detection mechanism includes a detection tube 2 threadedly connected to the instrument body 1. A connecting hole 101 is opened on the top of the instrument body 1. The detection tube 2 is connected to the instrument body 1 through the connecting hole 101. When the water vaporization heat experiment instrument is conducting an experiment, the gas inside the instrument body 1 enters the inside of the detection tube 2 through the connecting hole 101, which facilitates the detection tube 2 to detect the pressure change inside the instrument body 1. The inner top wall of the detection tube 2 is fixedly connected with a contact pressure sensor 3. The inside of the detection tube 2 is slidably connected with an extrusion block 4 located at the bottom of the contact pressure sensor 3. The outside of the contact pressure sensor 3 and the extrusion block 4 are sleeved with a telescopic spring 5 fixedly connected to the detection tube 2.

[0022] Among them, the bottom of the extrusion block 4 is fixedly connected to a piston disk 6 fixedly connected to the telescopic spring 5, the outside of the piston disk 6 is fixedly connected to a sealing ring 601 that fits tightly with the detection tube 2, and the left and right sides of the extrusion block 4 are fixedly connected with sliders 401. The extrusion block 4 is slidably connected to the detection tube 2 through the sliders 401, which limits the extrusion block 4 and increases the stability of the extrusion block 4. The internal pressure of the instrument body 1 increases, and the piston disk 6 is squeezed, so that the piston disk 6 and the extrusion block 4 slide upward, and the contact pressure sensor 3 is squeezed. The contact pressure sensor 3 detects the pressure change inside the instrument body 1.

[0023] Among them, the detection mechanism also includes a humidity sensor 7 fixedly connected to the detection cylinder 2, a processor 8 is fixedly connected to the left side of the detection cylinder 2, an exhaust pipe 9 is fixedly connected to the right side of the detection cylinder 2, an exhaust hole is opened on the right side of the detection cylinder 2, the exhaust pipe 9 is connected with the detection cylinder 2 through the exhaust hole, the gas inside the instrument body 1 is discharged through the exhaust pipe 9, so as to reduce the pressure inside the instrument body 1, an exhaust valve 10 is arranged inside the exhaust pipe 9, the contact pressure sensor 3 is signal-connected with the processor 8, the processor 8 is electrically connected with the exhaust valve 10, the processor 8 includes a processing module, a signal receiving module and a control module, the contact pressure sensor 3 sends the detected pressure information to the processor 8 for processing, when the pressure value exceeds the standard value, the processor 8 makes the exhaust valve 10 energized and opened to exhaust the instrument body 1, so as to reduce the damage to the instrument body 1 caused by excessive pressure.

[0024] Among them, a detection indicator light 201 and a buzzer 11 are set on the front of the detection tube 2, the humidity sensor 7 is signal-connected with the processor 8, the processor 8 is electrically connected with the buzzer 11, the humidity sensor 7 detects the humidity change of the gas inside the instrument body 1, and sends the detected humidity value to the processor 8 for processing. When the internal pressure of the instrument body 1 exceeds the standard value, the processor 8 energizes the buzzer 11, and the buzzer 11 emits a harsh warning sound to warn the user.

[0025] It should be noted that by setting up a detection mechanism, it is convenient to detect the pressure of the water vaporization heat experiment instrument, and the exhaust and warning functions are added, thereby improving the protection effect of the water vaporization heat experiment instrument. This solves the problem that the existing pressure detection device has a relatively single function, does not have the exhaust and warning functions, and has a relatively poor protection effect on the water vaporization heat experiment instrument.

[0026] Specifically, when the water vaporization heat experiment instrument is conducting an experiment, the internal pressure of the instrument body 1 increases, the piston disc 6 is squeezed, the piston disc 6 and the squeezing block 4 slide upward, and the contact pressure sensor 3 is squeezed. The contact pressure sensor 3 detects the pressure change inside the instrument body 1, and the humidity sensor 7 detects the humidity change of the gas inside the instrument body 1, and sends the detected humidity value to the processor 8 for processing. The contact pressure sensor 3 sends the detected pressure information to the processor 8 for processing. When the pressure value exceeds the standard value, the processor 8 energizes and opens the exhaust valve 10 to exhaust the instrument body 1, and the processor 8 energizes the buzzer 11, and the buzzer 11 emits a harsh warning sound to warn the user, thereby reducing the damage to the instrument body 1 caused by excessive pressure, thereby achieving the purpose of adding exhaust and warning functions to the pressure detection device of the water vaporization heat experiment instrument and improving the protection of the water vaporization heat experiment instrument.

[0027] The working principle of the above embodiment is:

[0028] The pressure detection device of the water vaporization heat experiment instrument is as follows: when the water vaporization heat experiment instrument is conducting an experiment, the internal pressure of the instrument body 1 increases, the piston disc 6 is squeezed, the piston disc 6 and the squeezing block 4 slide upward, and the contact pressure sensor 3 is squeezed. The contact pressure sensor 3 detects the pressure change inside the instrument body 1, the humidity sensor 7 detects the humidity change of the gas inside the instrument body 1, and sends the detected humidity value to the processor 8 for processing. The contact pressure sensor 3 sends the detected pressure information to the processor 8 for processing. When the pressure value exceeds the standard value, the processor 8 energizes and opens the exhaust valve 10 to exhaust the instrument body 1, and the processor 8 energizes the buzzer 11, and the buzzer 11 emits a harsh warning sound to warn the user, thereby reducing the damage to the instrument body 1 caused by excessive pressure, thereby achieving the purpose of adding exhaust and warning functions to the pressure detection device of the water vaporization heat experiment instrument and improving the protection of the water vaporization heat experiment instrument.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure detection device for a water vaporization heat experiment instrument, comprising an instrument body (1), characterized in that: A detection mechanism is provided on the top of the instrument body (1); The detection mechanism comprises a detection cylinder (2) threadedly connected to the instrument body (1); the inner top wall of the detection cylinder (2) is fixedly connected to a contact pressure sensor (3); the interior of the detection cylinder (2) is slidably connected to an extrusion block (4) located at the bottom of the contact pressure sensor (3); the exterior of the contact pressure sensor (3) and the extrusion block (4) are sleeved with a telescopic spring (5) fixedly connected to the detection cylinder (2); the bottom of the extrusion block (4) is fixedly connected to a piston disk (6) fixedly connected to the telescopic spring (5); the exterior of the piston disk (6) is fixedly connected to a sealing ring (601) tightly fitted to the detection cylinder (2); The detection mechanism further comprises a humidity sensor (7) fixedly connected to the detection cylinder (2); a processor (8) is fixedly connected to the left side of the detection cylinder (2); an exhaust pipe (9) is fixedly connected to the right side of the detection cylinder (2); an exhaust valve (10) is arranged inside the exhaust pipe (9); and a detection indicator light (201) and a buzzer (11) are arranged on the front side of the detection cylinder (2).

2. The pressure detection device of the water vaporization heat experimental instrument according to claim 1 is characterized in that: A communication hole (101) is provided on the top of the instrument body (1), and the detection cylinder (2) is connected to the instrument body (1) through the communication hole (101).

3. The pressure detection device of the water vaporization heat experimental instrument according to claim 1 is characterized in that: Slide blocks (401) are fixedly connected to the left and right sides of the extrusion block (4), and the extrusion block (4) is slidably connected to the detection cylinder (2) via the slide blocks (401).

4. The pressure detection device of the water vaporization heat experimental instrument according to claim 1 is characterized in that: The contact pressure sensor (3) is signal-connected to a processor (8), and the processor (8) is electrically connected to an exhaust valve (10).

5. The pressure detection device of the water vaporization heat experimental instrument according to claim 1 is characterized in that: An exhaust hole is provided on the right side of the detection cylinder (2), and the exhaust pipe (9) is connected to the detection cylinder (2) through the exhaust hole.

6. The pressure detection device of the water vaporization heat experimental instrument according to claim 1 is characterized in that: The humidity sensor (7) is signal-connected to a processor (8), and the processor (8) is electrically connected to a buzzer (11).

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