Corrosion-resistant and temperature-resistant double-flange differential pressure transmitter

Abstract

This utility model discloses a differential pressure transmitter technology, specifically a corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter. It includes a transmitter body with two sets of connection holes on its outer side, corresponding to the high-pressure and low-pressure sides respectively. Two positioning components are correspondingly arranged with the connection holes. Each positioning component includes a connector threaded into the connection hole. Multiple sets of elastic pressure plates are arranged in a ring at equal intervals on the outer side of the connector. Locking bolts are screwed onto the outer side of the elastic pressure plates to lock them in place. Two pressure guiding components are provided, corresponding to the two sets of connection holes respectively. Through the cooperation of the locking bolts and elastic pressure plates, a dynamic seal is achieved between the capillary tube and the connector, maintaining sealing even under high-temperature deformation to prevent media leakage. Furthermore, the elastic pressure plates undergo elastic deformation under the pressure of the locking bolts, absorbing pipeline vibration energy, preventing thread loosening, and ensuring operational stability.

Description

Technical Field

[0001] This utility model relates to the field of differential pressure transmitter technology, specifically a corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter. Background Technology

[0002] Corrosion-resistant dual-flange differential pressure transmitters are typically made of corrosion-resistant materials, such as 316 stainless steel and titanium alloys. These materials can resist the erosion of chemicals such as acids, alkalis, and salts, ensuring long-term stable operation in corrosive media. The corrosion-resistant dual-flange differential pressure transmitter employs high-quality sensors and electronic components, ensuring reliable measurement performance. It provides accurate differential pressure measurements and maintains stable operation even in harsh environments, unaffected by media corrosion. The transmitter offers high measurement accuracy, meeting the requirements for precise measurement of fluid flow, level, or pressure difference. It provides a stable output signal for accurate data acquisition and control. The dual-flange design facilitates connection to pipelines or containers. Its installation is relatively simple, allowing for quick placement at the required monitoring location and adaptability to various installation environments and requirements. Currently, traditional dual-flange differential pressure transmitters face the following technical problems when used in corrosive and high-temperature environments such as chemical, petroleum, and pharmaceutical industries: Insufficient sealing of flange connection: Traditional flanges are directly tightened with bolts, which can easily loosen under high temperature or pressure fluctuations, leading to media leakage, affecting measurement accuracy, and making the gaskets susceptible to corrosion, aging and failing after long-term use, resulting in high maintenance costs. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] Therefore, the purpose of this utility model is to provide a corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter. By using a locking bolt and an elastic pressure plate, a dynamic seal is achieved between the capillary tube and the connector. The transmitter can maintain its sealing performance even when deformed at high temperatures, thus preventing media leakage. Furthermore, the elastic pressure plate undergoes elastic deformation under the pressure of the locking bolt, which can absorb pipeline vibration energy, prevent thread loosening, and ensure operational stability.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter, comprising: The transmitter body, which serves as the detection substrate, has two sets of connection holes on its outer side, corresponding to the high-pressure side and the low-pressure side, respectively. The positioning assembly is provided in two sets, and the two sets of positioning assemblies are set one-to-one with the connecting holes. The positioning assembly includes a connector threaded into the connecting hole. Multiple sets of elastic pressure plates are provided in a ring at equal intervals on the outside of the connector. Locking bolts that lock the elastic pressure plates are screwed on the outside of the elastic pressure plates. The pressure guiding components are provided in two sets, with each set corresponding to a different set of connection holes.

[0006] As a preferred embodiment of the corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter of this utility model, wherein: a positioning hole is provided at both the upper and lower ends of the corresponding connection hole on the outer side of the transmitter body.

[0007] As a preferred embodiment of the corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter of this utility model, wherein: the outer side of the connector is integrally formed with a limiting seat, and a limiting sleeve is provided on the outer side of the transmitter body at the corresponding connection hole position. The limiting sleeve and the limiting seat are engaged and fitted together, and two positioning holes are provided at both ends of the limiting sleeve.

[0008] As a preferred embodiment of the corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter described in this utility model, wherein: positioning hole one and positioning hole two are provided in a one-to-one correspondence, and positioning hole one and positioning hole two are fixed in conjunction with connecting bolts.

[0009] As a preferred embodiment of the corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter of this utility model, the pressure guiding assembly includes a capillary tube connected to the connector, the other end of the capillary tube connected to the flange, and a diaphragm connected inside the flange, with the diaphragm corresponding to the capillary tube.

[0010] As a preferred embodiment of the corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter described in this utility model, the flange has multiple sets of connection holes arranged in a ring at equal intervals along the outer side of the flange.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By using a locking bolt and an elastic pressure plate, a dynamic seal is achieved between the capillary tube and the connector. This seal remains intact even under high-temperature deformation, preventing media leakage. Furthermore, the elastic pressure plate undergoes elastic deformation under the pressure of the locking bolt, absorbing pipeline vibration energy, preventing thread loosening, and ensuring operational stability. The pressure guiding assembly and the transmitter body are designed as separate units, so only the corresponding module needs to be replaced in case of partial damage, saving costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Partial structural diagram; Figure 3 This utility model Figure 2 Partial structural diagram.

[0013] In the diagram: 100 Transmitter body, 110 Connection hole, 120 Positioning hole one, 200 Positioning assembly, 210 Connector, 211 Limit seat, 212 Elastic pressure plate, 220 Locking bolt, 230 Limit sleeve, 231 Positioning hole two, 300 Pressure guiding assembly, 310 Capillary tube, 320 Flange, 321 Diaphragm, 322 Connection hole one. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0016] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] This utility model provides a corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter. Please refer to [link / reference]. Figure 1-3 It includes a transmitter body 100, a positioning assembly 200, and a pressure guiding assembly 300; Please continue reading. Figure 1-3The transmitter body 100, which serves as the detection substrate, has two sets of connection holes 110 on its outer side. The two sets of connection holes 110 are respectively set for the high-pressure side and the low-pressure side. Positioning holes 120 are provided at both the upper and lower ends of the outer side of the transmitter body 100 corresponding to the connection holes 110. Please continue reading. Figure 1-2 The positioning component 200 is provided in two sets, and the two sets of positioning components 200 are set one-to-one with the connecting hole 110. The positioning component 200 includes a connector 210 threaded into the connecting hole 110. Multiple sets of elastic pressure plates 212 are provided in an annular shape on the outside of the connector 210. Locking bolts 220 are screwed on the outside of the elastic pressure plates 212 to lock the elastic pressure plates 212. Through the cooperation of the locking bolts 220 and the elastic pressure plates 212, dynamic sealing between the capillary tube 310 and the connector 210 is achieved. It can still maintain the sealing performance when deformed at high temperature, and avoid the leakage of the medium. In addition, the elastic pressure plates 212 generate elastic deformation under the pressure of the locking bolts 220, which can absorb the vibration energy of the pipeline and prevent the threads from loosening. The connector 210 is integrally formed with a limiting seat 211 on the outside, and a limiting sleeve 230 is provided on the outside of the transmitter body 100 at the position corresponding to the connection hole 110. The limiting sleeve 230 is engaged with the limiting seat 211, and positioning holes 231 are provided at both ends of the limiting sleeve 230. By engaging the limiting sleeve 230 with the limiting seat 211, the connector 210 is further limited and fixed, which can prevent the connector 210 from loosening during use. Please continue reading. Figure 1-2 The pressure guiding component 300 is provided in two sets, and the two sets of pressure guiding components 300 are respectively provided with two sets of connection holes 110; The pressure guiding assembly 300 includes a capillary tube 310 connected to the connector 210, and the other end of the capillary tube 310 is connected to a flange 320. A diaphragm 321 is embedded in the flange 320 and is correspondingly arranged with the capillary tube 310. Multiple sets of connection holes 322 are provided on the flange 320 and are arranged in a ring at equal intervals along the outer side of the flange 320. The diaphragm 321 is designed to be separate from the capillary tube 310, so that corrosive media can only contact the flange 320 and the diaphragm 321, and the core transmitter body 100 is not damaged. In addition, the pressure guiding assembly 300 and the transmitter body 100 adopt a split structure, so only the corresponding module needs to be replaced when there is partial damage, saving costs. Working principle: In use, the locking bolt 220 and the elastic pressure plate 212 work together to achieve a dynamic seal between the capillary tube 310 and the connector 210. The seal can be maintained even when deformed at high temperature, preventing leakage of the medium. Furthermore, the elastic pressure plate 212 undergoes elastic deformation under the pressure of the locking bolt 220, which can absorb the vibration energy of the pipeline, prevent the threads from loosening, and ensure the stability of use. Moreover, the pressure guiding component 300 and the transmitter body 100 adopt a split structure, so only the corresponding module needs to be replaced when there is partial damage, saving costs.

[0019] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A corrosion resistant, temperature resistant, dual flanged, differential pressure transmitter characterized in that, include: The transmitter body (100), which serves as the detection substrate, has two sets of connection holes (110) on its outer side, which correspond to the high-pressure side and the low-pressure side, respectively. The positioning component (200) is provided in two sets. The two sets of positioning components (200) are set one-to-one with the connecting hole (110). The positioning component (200) includes a connector (210) threaded into the connecting hole (110). Multiple sets of elastic pressure plates (212) are provided in a ring at equal intervals on the outside of the connector (210). Locking bolts (220) for locking the elastic pressure plates (212) are screwed on the outside of the elastic pressure plates (212). The pressure guiding assembly (300) is provided in two sets, and the two sets of pressure guiding assemblies (300) are respectively set with two sets of connecting holes (110).

2. The corrosion and temperature resistant double flanged differential pressure transmitter of claim 1, wherein, The transmitter body (100) has a positioning hole (120) at both the upper and lower ends of the corresponding connection hole (110) on the outside.

3. The corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter according to claim 1, characterized in that, The connector (210) is integrally formed with a limiting seat (211) on the outside, and a limiting sleeve (230) is provided on the outside of the transmitter body (100) at the position corresponding to the connecting hole (110). The limiting sleeve (230) is engaged with the limiting seat (211), and positioning holes (231) are provided at both ends of the limiting sleeve (230).

4. The corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter according to claim 2, characterized in that, The positioning hole one (120) and positioning hole two (231) are provided in a one-to-one correspondence, and the positioning hole one (120) and positioning hole two (231) are fixed together with the connecting bolt.

5. The corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter according to claim 1, characterized in that, The pressure guiding assembly (300) includes a capillary tube (310) connected to the connector (210), the other end of the capillary tube (310) is connected to a flange (320), and a diaphragm (321) is connected inside the flange (320). The diaphragm (321) is correspondingly arranged with the capillary tube (310).

6. A corrosion-resistant and temperature-resistant dual-flange differential pressure transmitter according to claim 5, characterized in that, The flange (320) has multiple sets of connection holes (322), which are arranged in a ring at equal intervals along the outer side of the flange (320).

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