Pressure transmitter with self-diagnosis function

Abstract

The utility model provides a pressure transmitter with a self-diagnosis function, and belongs to the technical field of pressure transmitters. The pressure transmitter with the self-diagnosis function comprises a pressure transmitter body, the opposite ends of a shell of the pressure transmitter body are communicated with a backflow assembly and an installation pipe respectively, the outlet end of the installation pipe is communicated with a detachable connecting pipe assembly, and a humidity sensor and a fan assembly are installed in the connecting pipe assembly. The backflow assembly and the mounting pipe are communicated with the opposite ends of the shell of the pressure transmitter body, the connecting pipe assembly is communicated with the mounting pipe, and the humidity sensor and the fan assembly are mounted in the connecting pipe assembly, so that the fan assembly operates, air in the pressure transmitter body can be led into the connecting pipe assembly, and the humidity sensor and the fan assembly are arranged in the connecting pipe assembly. Therefore, the air humidity in the pressure transmitter body can be conveniently detected, and when leakage occurs in the pressure transmitter body, the purpose of rapid detection can be achieved, so that the detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of pressure transmitters, and in particular to a pressure transmitter with self-diagnosis. Background Art

[0002] Pressure transmitter is the most commonly used sensor in industrial practice. It is widely used in various industrial automatic control environments. It is used to measure the liquid level, density and pressure of liquid, gas or steam, and then convert the pressure signal into 4-20mADC signal output.

[0003] The utility model patent with authorization announcement number CN217605170U discloses a pressure-resistant pressure transmitter with self-diagnosis function, including a pressure transmitter body, a base is arranged at the bottom end of the pressure transmitter body, a water inlet pipe is arranged at the bottom end of the base, and a joint is arranged at the top end of the pressure transmitter body, so that the pressure transmitter has self-diagnosis capability when in use, and leakage of the pressure transmitter can be detected in time.

[0004] In the above scheme, a boss is installed on one side of the outer shell of the pressure transmitter body, and an opening is provided on the boss, which is connected to the interior of the pressure transmitter body shell, so that a humidity sensor is arranged in the opening, which can detect the humidity inside the pressure transmitter body shell to determine whether a leakage occurs. However, the humidity sensor is arranged on one side of the pressure transmitter body, so that the detection range of the humidity sensor is limited. Therefore, when leakage occurs on the side of the pressure transmitter body away from the humidity sensor, it takes a certain amount of time for the moisture inside the pressure transmitter body to be transferred to the humidity sensor, resulting in low detection efficiency. For this reason, we propose a pressure transmitter with self-diagnosis. Utility Model Content

[0005] In order to make up for the above shortcomings, the present application provides a pressure transmitter with self-diagnosis, aiming to improve the problem of low efficiency of the humidity sensor in detecting the inside of the pressure transmitter body.

[0006] An embodiment of the present application provides a pressure transmitter with self-diagnosis, including a pressure transmitter body, wherein opposite ends of the pressure transmitter body shell are respectively connected to a reflux assembly and a mounting pipe, an outlet end of the mounting pipe is connected to a detachable connecting pipe assembly, a humidity sensor and a fan assembly are installed in the connecting pipe assembly, and one end of the reflux assembly is plugged into the connecting pipe assembly.

[0007] In a specific embodiment, the reflux assembly includes a hose connected to the pressure transmitter body housing, the inlet end of the hose is connected to a quick connector, and the quick connector is plug-connected with the connecting pipe assembly.

[0008] In a specific embodiment, the connecting pipe assembly includes a first connecting pipe connected to the mounting pipe, an outlet end of the first connecting pipe is connected to a second connecting pipe, and the humidity sensor and the fan assembly are respectively installed in the first connecting pipe and the second connecting pipe.

[0009] In a specific embodiment, the connecting pipe assembly further includes a connecting head, the connecting head is communicated with the second connecting pipe, and the quick connector is plugged into the connecting head.

[0010] In a specific implementation scheme, two screws are fixedly installed on the shell of the pressure transmitter body, and first connecting blocks are fixedly installed on the side walls at both ends of the second connecting tube. The two first connecting blocks are respectively slidably sleeved on the two screws, and one end of the two screws is threadedly connected with a nut, and the nut presses the second connecting tube so that the second connecting tube presses the first connecting tube.

[0011] In a specific embodiment, second connecting blocks are fixedly connected to the side walls at both ends of the first connecting pipe, and two second connecting blocks are slidably sleeved on the two screw rods respectively.

[0012] In a specific embodiment, the fan assembly includes a motor installed in the second connecting pipe, and a drive shaft of the motor is connected to a fan blade.

[0013] In a specific implementation, a bracket is fixedly installed in the second connecting pipe, and the motor is installed on the bracket.

[0014] The beneficial effects of the present application are as follows: by connecting the reflux assembly and the mounting tube at opposite ends of the pressure transmitter body shell, the mounting tube is connected to the connecting tube assembly, and the humidity sensor and the fan assembly are installed in the connecting tube assembly, so that the fan assembly is operated, the air in the pressure transmitter body can be led into the connecting tube assembly, thereby facilitating the detection of the air humidity inside the pressure transmitter body, so that when leakage occurs inside the pressure transmitter body, the purpose of rapid detection can be achieved to improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of a pressure transmitter with self-diagnosis provided by an embodiment of the present application from a first perspective;

[0017] Figure 2 A schematic diagram of the structure of a pressure transmitter with self-diagnosis provided in a second perspective according to an embodiment of the present application;

[0018] Figure 3 A schematic diagram of a partial cross-sectional structure of a pressure transmitter with self-diagnosis provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the disassembled structure of a connecting pipe assembly in a pressure transmitter with self-diagnosis provided in an embodiment of the present application;

[0020] Figure 5 for Figure 3 A partial enlarged view of point A in the middle.

[0021] In the figure: 10-pressure transmitter body; 110-screw; 120-nut; 20-reflux assembly; 210-hose; 220-quick connector; 30-installation pipe; 40-connecting pipe assembly; 410-first connecting pipe; 420-second connecting pipe; 430-connector; 50-humidity sensor; 60-fan assembly; 610-motor; 620-fan blades; 70-first connecting block; 80-second connecting block; 90-bracket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0023] See also Figure 1-5 The present application provides a pressure transmitter with self-diagnosis, including a pressure transmitter body 10, wherein the opposite ends of the shell of the pressure transmitter body 10 are respectively connected with a reflux assembly 20 and a mounting tube 30, and the outlet end of the mounting tube 30 is connected with a detachable connecting tube assembly 40, in which a humidity sensor 50 and a fan assembly 60 are installed, and one end of the reflux assembly 20 is plugged with the connecting tube assembly 40. Specifically, the outlet end of the reflux assembly 20 and the mounting tube 30 are located at both ends of the pressure transmitter body 10, so that the air inside the pressure transmitter body 10 can flow from one side to the other side, thereby facilitating the detection of the air humidity inside the pressure transmitter body 10, so as to timely determine whether there is a leakage inside the pressure transmitter body 10.

[0024] See also Figure 1 and 2The reflux assembly 20 includes a hose 210 connected to the shell of the pressure transmitter body 10. The inlet end of the hose 210 is connected to a quick connector 220. The quick connector 220 is plugged into the connecting pipe assembly 40. When set, the outlet end of the hose 210 is connected to the outer shell of the pressure transmitter body 10, and the outlet end of the hose 210 and the mounting pipe 30 are respectively located at both ends of the pressure transmitter body 10. It should be noted that the specific connection of the quick connector 220 is the existing technology to facilitate connection with the connecting pipe assembly 40.

[0025] See also Figure 1 and 4 The connecting pipe assembly 40 includes a first connecting pipe 410 connected to the mounting pipe 30, and the outlet end of the first connecting pipe 410 is connected to the second connecting pipe 420. The humidity sensor 50 and the fan assembly 60 are respectively installed in the first connecting pipe 410 and the second connecting pipe 420. The connecting pipe assembly 40 also includes a connector 430, which is connected to the second connecting pipe 420. The quick connector 220 is plugged into the connector 430. When specifically set, the quick connector 220 can be quickly connected to the connector 430. Its specific connection structure is the prior art. In addition, the first connecting pipe 410 and the second connecting pipe 420 can be removed from the mounting pipe 30, thereby separating the first connecting pipe 410 and the second connecting pipe 420, so as to facilitate separate maintenance of the equipment inside.

[0026] See also Figure 4 and 5 Two screws 110 are fixedly installed on the shell of the pressure transmitter body 10, and first connecting blocks 70 are fixedly installed on the side walls at both ends of the second connecting tube 420. The two first connecting blocks 70 are respectively slidably sleeved on the two screws 110, and one end of the two screws 110 is threadedly connected with a nut 120. The nut 120 presses the second connecting tube 420 so that the second connecting tube 420 presses the first connecting tube 410. Second connecting blocks 80 are fixedly connected to the side walls at both ends of the first connecting tube 410. The two second connecting blocks 80 are respectively slidably sleeved on the two screws 110. It should be noted that holes are opened on the first connecting block 70 and the second connecting block 80, so that the first connecting block 70 and the second connecting block 80 can be sleeved on the same screw 110, and pass through the nut 120 to realize the locking of the second connecting tube 420 and the first connecting tube 410 on the mounting tube 30, and at the same time facilitate the disassembly and assembly of the first connecting tube 410 and the second connecting tube 420.

[0027] See also Figure 5The fan assembly 60 includes a motor 610 installed in the second connecting tube 420, the driving shaft of the motor 610 is connected to the fan blade 620, and a bracket 90 is fixedly installed in the second connecting tube 420. The motor 610 is installed on the bracket 90. Specifically, the connection structure between the motor 610 and the bracket 90 is the existing technology. The motor 610 drives the fan blade 620 to rotate to realize the flow of air in the second connecting tube 420, thereby allowing the air inside the pressure transmitter body 10 to circulate.

[0028] When the pressure transmitter with self-diagnosis is working: during the operation of the pressure transmitter body 10, the motor 610 runs at the same time, so that the motor 610 drives the fan blade 620 in the second connecting tube 420 to rotate, so that the air in the second connecting tube 420 flows into the hose 210, so that the air inside the pressure transmitter body 10 flows into the first connecting tube 410 through the installation tube 30, and the humidity sensor 50 in the first connecting tube 410 detects the humidity of the air. When a leak occurs inside the pressure transmitter body 10, the leaked liquid will increase the humidity of the air inside the pressure transmitter body 10, so that after the air passes through the installation tube 30 and enters the first connecting tube 410, the humidity sensor 50 can detect that the air humidity becomes higher, so as to determine that a leak occurs inside the pressure transmitter body 10.

[0029] It should be noted that the specific model specifications of the humidity sensor 50 and the motor 610 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0030] The power supply and principle of the humidity sensor 50 and the motor 610 are clear to those skilled in the art and will not be described in detail here.

[0031] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A pressure transmitter with self-diagnosis, characterized in that: The invention comprises a pressure transmitter body (10), wherein opposite ends of the shell of the pressure transmitter body (10) are respectively connected to a return assembly (20) and a mounting pipe (30), the outlet end of the mounting pipe (30) is connected to a detachable connecting pipe assembly (40), a humidity sensor (50) and a fan assembly (60) are installed in the connecting pipe assembly (40), and one end of the return assembly (20) is plugged into the connecting pipe assembly (40).

2. A pressure transmitter with self-diagnosis according to claim 1, characterized in that: The reflux assembly (20) comprises a hose (210) connected to the shell of the pressure transmitter body (10); the inlet end of the hose (210) is connected to a quick connector (220); and the quick connector (220) is plugged into the connecting pipe assembly (40).

3. A pressure transmitter with self-diagnosis according to claim 2, characterized in that: The connecting pipe assembly (40) comprises a first connecting pipe (410) connected to the mounting pipe (30); an outlet end of the first connecting pipe (410) is connected to a second connecting pipe (420); and the humidity sensor (50) and the fan assembly (60) are respectively installed in the first connecting pipe (410) and the second connecting pipe (420).

4. A pressure transmitter with self-diagnosis according to claim 3, characterized in that: The connecting pipe assembly (40) further comprises a connecting head (430), wherein the connecting head (430) is in communication with the second connecting pipe (420), and the quick connector (220) is plug-connected with the connecting head (430).

5. A pressure transmitter with self-diagnosis according to claim 3, characterized in that: Two screw rods (110) are fixedly mounted on the shell of the pressure transmitter body (10), and first connection blocks (70) are fixedly mounted on the side walls at both ends of the second connection tube (420). The two first connection blocks (70) are respectively slidably mounted on the two screw rods (110), and one end of the two screw rods (110) is threadedly connected with a nut (120), and the nut (120) presses the second connection tube (420) so that the second connection tube (420) presses the first connection tube (410).

6. A pressure transmitter with self-diagnosis according to claim 5, characterized in that: Second connection blocks (80) are fixedly connected to the side walls at both ends of the first connection tube (410), and the two second connection blocks (80) are respectively slidably mounted on the two screw rods (110).

7. A pressure transmitter with self-diagnosis according to claim 3, characterized in that: The fan assembly (60) includes a motor (610) installed in the second connecting pipe (420), and a drive shaft of the motor (610) is connected to a fan blade (620).

8. A pressure transmitter with self-diagnosis according to claim 7, characterized in that: A bracket (90) is fixedly installed in the second connecting pipe (420), and the motor (610) is installed on the bracket (90).

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