Intelligent differential pressure transmitter
By using a fixed structure of the housing mounting base, threaded column and locking nut in the differential pressure transmitter, combined with the design of the diaphragm and intermediate membrane, the problem of media impurities entering the catheter damage the diaphragm is solved, and the stable operation of the equipment and the improvement of measurement accuracy is achieved.
Patent Information
- Application Number
- CN202422606272.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-28
AI Technical Summary
When the existing differential pressure transmitter measures the medium, impurities in the medium to be measured will enter the inside of the catheter, causing damage to the diaphragm.
An intelligent differential pressure transmitter is designed, adopting the mounting seats and connecting rod structures on both sides of the housing, combining the fixing method of threaded columns and lock nuts, and a diaphragm and intermediate membrane are installed inside to transmit pressure signals through the filling fluid, and convert them into voltage signals by using the controller to display, adding a sealing ring and sealing sleeve to improve connection stability and sealing.
It effectively prevents media impurities from entering the catheter, protects the diaphragm, ensures the stable operation of the measurement components, and improves the safety of the equipment and measurement accuracy.
Smart Images
Figure CN223259119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of differential pressure transmitters, and more specifically to an intelligent differential pressure transmitter. Background Art
[0002] A differential pressure transmitter measures the difference in pressure between its two terminals. It has two pressure ports, generally designated as a positive pressure port and a negative pressure port. Under normal circumstances, the pressure on the positive pressure port must be greater than the pressure on the negative pressure port for effective measurement. Differential pressure transmitters are widely used to measure the level, flow, and pressure of liquids, gases, or steam, and play a vital role in industrial automation and control.
[0003] When measuring a medium with an existing differential pressure transmitter, impurities in the measured medium may enter the interior of the conduit and cause a certain degree of damage to the diaphragm. Therefore, a new technical solution is needed to solve this problem. Utility Model Content
[0004] The purpose of the utility model is to provide an intelligent differential pressure transmitter, which solves the problem that when the existing differential pressure transmitter measures the medium, impurities in the measured medium may enter the interior of the conduit and cause a certain degree of damage to the diaphragm.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an intelligent differential pressure transmitter, comprising: a shell, mounting seats are provided on both sides of the shell and connecting holes are provided inside the mounting seats, a connecting rod is provided between the mounting seats and the connecting rod passes through the mounting seats and a locking nut is provided at one end, a mounting hole is provided on the upper part of the shell and a threaded column is provided inside the mounting hole, the threaded column and the mounting hole are threadedly connected, an assembly is provided on the upper part of the threaded column and a controller is provided on the side of the assembly, a diaphragm is provided on the inner side of the connecting hole and an intermediate membrane is provided in the internal vacuum cavity of the shell, a measuring component is provided inside the shell and the measuring component is connected to the vacuum cavity via a capillary, the measuring component is electrically connected to the controller, and the side of the intermediate membrane and the measuring component are loaded with filling liquid.
[0006] As a preferred embodiment of the present invention, the outer surface of the controller is provided with an external thread, and the surface of the external thread is provided with a protective shell, and the protective shell is threadedly connected to the external thread.
[0007] As a preferred embodiment of the present invention, a wire connection tube is provided inside the assembly body, and the wires of the wire connection tube extend to the outside.
[0008] As a preferred embodiment of the present invention, a sealing ring is provided at the inner edge of the connecting hole and the sealing ring and the connecting hole are embedded with each other.
[0009] As a preferred embodiment of the present invention, a sealing sleeve is provided at the edge of the mounting hole and the sealing sleeve is provided in a conical structure.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0011] The utility model is provided with mounting seats on both sides of the shell, and connecting holes are provided inside the mounting seats, a connecting rod is provided between the mounting seats, the connecting rod passes through the mounting seats and a locking nut is provided at one end, a mounting hole is provided on the upper part of the shell, and a threaded column is provided inside the mounting hole, the threaded column and the mounting hole are threadedly connected, an assembly is provided on the upper part of the threaded column, and a controller is provided on the side of the assembly, a diaphragm is provided on the inner side of the connecting hole, and an intermediate membrane is provided in the internal vacuum cavity of the shell, a measuring component is provided inside the shell and the measuring component is connected to the vacuum cavity through a capillary, the measuring component is electrically connected to the controller, and the side of the intermediate membrane and the measuring component are loaded with filling liquid, the transmitter is fixedly installed on the device through the connecting hole of the mounting seat, the controller is started to work, the differential pressure and absolute pressure of the measured medium are transmitted to the intermediate membrane of the measuring component through the filling liquid, the displacement change of the intermediate membrane will cause the output voltage of the measuring component to change, and at this time the output voltage is converted by the controller on the digital display panel. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the front view structure of the utility model;
[0014] Figure 3 This is a side view structural diagram of the utility model;
[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model.
[0016] In the figure: 1. Shell; 2. Mounting base; 3. Connecting hole; 4. Connecting rod; 5. Locking nut; 6. Mounting hole; 7. Threaded column; 8. Assembly; 9. Wire connection tube; 10. Controller; 11. Protective shell; 12. External thread; 13. Sealing ring; 14. Diaphragm; 15. Filling liquid; 16. Intermediate membrane; 17. Measuring component; 18. Sealing sleeve. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figure 1-4 The utility model provides a technical solution: an intelligent differential pressure transmitter, comprising: a shell 1, a mounting seat 2 is provided on both sides of the shell 1, and a connecting hole 3 is provided inside the mounting seat 2, a connecting rod 4 is provided between the mounting seats 2, and the connecting rod 4 passes through the mounting seat 2 and is provided with a locking nut 5 at one end, a mounting hole 6 is provided on the upper part of the shell 1, and a threaded column 7 is provided inside the mounting hole 6, the threaded column 7 is threadedly connected to the mounting hole 6, an assembly body 8 is provided on the upper part of the threaded column 7, and a controller 10 is provided on the side of the assembly body 8, a diaphragm 14 is provided on the inner side of the connecting hole 3, and an intermediate film 16 is provided in the internal vacuum chamber of the shell 1, a measuring component 17 is provided inside the shell 1, and the measuring component 17 is connected to the vacuum chamber through a capillary, the measuring component 17 is electrically connected to the controller 10, and a filling liquid 15 is loaded on the side of the intermediate film 16 and the measuring component 17, a mounting seat 2 is provided on both sides of the shell 1, and a connecting hole 3 is provided inside the mounting seat 2, A connecting rod 4 is provided between the housing 1 and passes through the mounting base 2, and a locking nut 5 is provided at one end. A mounting hole 6 is provided on the upper part of the housing 1, and a threaded column 7 is provided inside the mounting hole 6. The threaded column 7 is threadedly connected to the mounting hole 6. An assembly body 8 is provided on the upper part of the threaded column 7, and a controller 10 is provided on the side of the assembly body 8. A diaphragm 14 is provided on the inner side of the connecting hole 3, and an intermediate membrane 16 is provided in the internal vacuum chamber of the housing 1. A measuring component 17 is provided inside the housing 1 and is connected to the vacuum chamber via a capillary tube. The measuring component 17 is electrically connected to the controller 10. Filling fluid 15 is loaded on the side of the intermediate membrane 16 and in the measuring component 17. The transmitter is fixed to the device through the connecting hole 3 of the mounting base 2, and the controller 10 is started to work. The differential pressure and absolute pressure of the measured medium are transmitted to the intermediate membrane 16 of the measuring component 17 through the filling fluid 15. The displacement change of the intermediate membrane 16 will cause the output voltage of the measuring component 17 to change. At this time, the output voltage is converted by the controller 10 and displayed on the digital display panel.
[0019] Further improvements, such as Figure 3 As shown: the outer surface of the controller 10 is provided with an external thread 12 and the surface of the external thread 12 is provided with a protective shell 11, and the protective shell 11 is threadedly connected to the external thread 12. This setting provides additional protection for the controller 10 and improves the safety of use.
[0020] Further improvements, such as Figure 1 As shown, a wire connection tube 9 is provided inside the assembly 8 and the wires of the wire connection tube 9 extend to the outside. This arrangement facilitates connection with an external power source.
[0021] Further improvements, such as Figure 4As shown: a sealing ring 13 is provided at the inner edge of the connecting hole 3 and the sealing ring 13 and the connecting hole 3 are interlocked with each other, which increases the sealing performance of the connection of the connecting hole 3.
[0022] Further improvements, such as Figure 4 As shown: a sealing sleeve 18 is provided at the edge of the mounting hole 6 and the sealing sleeve 18 is provided in a conical structure. This arrangement increases the stability of the connection between the mounting hole 6 and the threaded column 7, while increasing the sealing and friction force to avoid loosening.
[0023] The utility model is provided with mounting seats 2 on both sides of the shell 1 and the interior of the mounting seats 2 is provided with connecting holes 3, a connecting rod 4 is provided between the mounting seats 2, the connecting rod 4 passes through the mounting seats 2 and a locking nut 5 is provided at one end, a mounting hole 6 is provided on the upper part of the shell 1 and a threaded column 7 is provided inside the mounting hole 6, the threaded column 7 is threadedly connected to the mounting hole 6, an assembly body 8 is provided on the upper part of the threaded column 7 and a controller 10 is provided on the side of the assembly body 8, a diaphragm 14 is provided on the inner side of the connecting hole 3 and an intermediate film 16 is provided in the internal vacuum chamber of the shell 1, A measuring component 17 is provided inside and is connected to the vacuum chamber via a capillary. The measuring component 17 is electrically connected to the controller 10. The side of the intermediate membrane 16 and the measuring component 17 are loaded with a filling liquid 15. The transmitter is fixed on the device through the connection hole 3 of the mounting base 2. The controller 10 is started to work. The differential pressure and absolute pressure of the measured medium are transmitted to the intermediate membrane 16 of the measuring component 17 through the filling liquid 15. The displacement change of the intermediate membrane 16 will cause the output voltage of the measuring component 17 to change. At this time, the output voltage is converted on the digital display panel by the controller 10.
[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.
[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.
[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. An intelligent differential pressure transmitter, characterized in that: include: A shell (1), wherein both sides of the shell (1) are provided with mounting seats (2), and the interior of the mounting seats (2) is provided with a connecting hole (3), a connecting rod (4) is provided between the mounting seats (2), and the connecting rod (4) passes through the mounting seats (2) and is provided with a locking nut (5) at one end, a mounting hole (6) is provided on the upper part of the shell (1), and a threaded column (7) is provided inside the mounting hole (6), the threaded column (7) is threadedly connected to the mounting hole (6), and the upper part of the threaded column (7) is provided with a threaded connection. An assembly (8) is provided, and a controller (10) is provided on the side of the assembly (8); a diaphragm (14) is provided on the inner side of the connection hole (3), and an intermediate membrane (16) is provided in the internal vacuum chamber of the shell (1); a measuring component (17) is provided inside the shell (1), and the measuring component (17) is connected to the vacuum chamber via a capillary tube; the measuring component (17) is electrically connected to the controller (10); and a filling liquid (15) is loaded on the side of the intermediate membrane (16) and in the measuring component (17).
2. The intelligent differential pressure transmitter according to claim 1, characterized in that: The outer surface of the controller (10) is provided with an external thread (12), and the surface of the external thread (12) is provided with a protective shell (11), and the protective shell (11) and the external thread (12) are threadedly connected.
3. The intelligent differential pressure transmitter according to claim 1, characterized in that: A wire connection tube (9) is provided inside the assembly (8), and the wires of the wire connection tube (9) extend to the outside.
4. The intelligent differential pressure transmitter according to claim 1, characterized in that: A sealing ring (13) is provided at the inner edge of the connecting hole (3), and the sealing ring (13) and the connecting hole (3) are interlocked.
5. The intelligent differential pressure transmitter according to claim 1, characterized in that: A sealing sleeve (18) is provided at the edge of the mounting hole (6), and the sealing sleeve (18) is provided in a conical structure.