Pressure transmitter connection seat

Abstract

The utility model discloses a pressure transmitter connecting seat, include: base, base is seted up with the corresponding measurement hole of pressure transmitter, outer tube and inner tube, the both sides of base are seted up with first connecting hole and second connecting hole, and outer tube is connected in first connecting hole, and inner tube is connected in second connecting hole, and base is seted up with medium flow channel and steam flow channel, and medium flow channel is penetrated to measurement hole and is linked two second connecting holes, and steam flow channel links two first connecting holes. Formed a closed, continuous heat tracing cavity under the action of outer tube, and the heat tracing steam is from the heat tracing cavity of inlet end, and flows through the steam flow channel of base, and then arrives the heat tracing cavity of export end, and the whole journey is wrapped medium flow channel, ensures that the medium from inner tube enters the measurement hole, until its pressure is measured the whole path is in the uniform heating state, thoroughly eliminates the solidification or crystallization risk caused by local heat dissipation, fundamentally guarantees the accuracy and continuity of measurement.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure transmitter accessories, specifically to a pressure transmitter connector. Background Technology

[0002] In industries such as petroleum, chemical, and pharmaceutical, it is often necessary to monitor the pressure of fluid media (such as high-viscosity liquids, easily crystallizing solutions, or easily condensable gases) in pipelines. In order to ensure that the pressure transmitter can work accurately and stably, it is usually required that the measured medium maintains appropriate fluidity when it reaches the measuring unit of the transmitter, without solidification or crystallization.

[0003] For media requiring heat preservation, traditional pressure transmitter installation methods mainly fall into the following two categories:

[0004] A pressure tapping pipe is used, which is connected to the main pipeline to guide the medium to the bypass pressure transmitter for measurement;

[0005] Flange installation is used, where a branch pipe is welded onto the main pipeline and a flange is installed, allowing the pressure transmitter to be directly mounted on the flange.

[0006] When pressure taps are used, jacketed pipes are typically used to heat the main pipeline. However, pressure taps are single thin pipes with limited heat tracing coverage and complex structures. When flange installation is used, the space at the flange connection is small, making it difficult for the jacketed pipe heat tracing system to effectively extend and cover the critical area. This can cause the medium to undergo phase change or solidify due to temperature drop, affecting measurements. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a pressure transmitter connector, which solves the problems of structural incompatibility and insufficient heating when the pressure transmitter installation method in the prior art is combined with the heat tracing system.

[0008] According to an embodiment of this utility model, the pressure transmitter connector includes:

[0009] The base has a measuring hole corresponding to the pressure transmitter.

[0010] The outer tube and inner tube, and the base are provided with a first connection hole and a second connection hole on both sides. The outer tube is connected to the first connection hole and the inner tube is connected to the second connection hole. The base is provided with a medium flow channel and a steam flow channel. The medium flow channel passes through to the measuring hole and connects to the two second connection holes. The steam flow channel connects to the two first connection holes.

[0011] Preferably, the top of the base has several mounting holes for connecting to the pressure transmitter.

[0012] Preferably, the top of the base has a mating groove, which is coaxially arranged with the measuring hole.

[0013] Preferably, the bottom surface of the docking groove is provided with an annular groove, and a sealing ring is provided inside the annular groove.

[0014] Preferably, the first connecting hole and the second connecting hole are coaxially arranged.

[0015] Preferably, both the first connecting hole and the second connecting hole are recessed radially along the base, forming a first socket and a second socket respectively, and the outer tube and the inner tube are respectively installed in the first socket and the second socket.

[0016] Preferably, the outer tube and the first socket and the inner tube and the second socket are all clearance fit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The outer tube forms a closed and continuous heat tracing cavity. The heat tracing steam flows from the inlet end of the heat tracing cavity, through the steam channel of the base, and then to the outlet end of the heat tracing cavity, completely enveloping the medium channel. This ensures that the medium is uniformly heated throughout its entire path from the inner tube entering the measuring hole until its pressure is measured, completely eliminating the risk of solidification or crystallization caused by local heat dissipation and fundamentally guaranteeing the accuracy and continuity of the measurement. At the same time, by combining the heat tracing system and the measuring interface into one, there is no need for complex design for how to heat the pressure tap or flange seat. The transmitter can be directly installed on the base, reducing installation procedures and time. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of the connecting seat in an embodiment of this utility model.

[0020] Figure 2 This is a top view of the connecting seat in an embodiment of the present invention.

[0021] In the above attached figures:

[0022] 1. Base; 101. First connecting hole; 102. Second connecting hole; 103. Measuring hole; 104. Annular groove; 105. Mounting hole; 106. Medium flow channel; 107. Steam flow channel; 108. Connecting groove;

[0023] 2. Outer tube;

[0024] 3. Inner tube;

[0025] 4. Sealing ring. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] This utility model embodiment proposes a pressure transmitter connector, comprising:

[0028] Base 1, with a measuring hole 103 corresponding to the pressure transmitter;

[0029] The outer tube 2 and the inner tube 3, and the base 1 are provided with a first connection hole 101 and a second connection hole 102 on both sides. The outer tube 2 is connected to the first connection hole 101, and the inner tube 3 is connected to the second connection hole 102. The base 1 is provided with a medium flow channel 106 and a steam flow channel 107. The medium flow channel 106 extends through to the measuring hole 103 and connects to the two second connection holes 102. The steam flow channel 107 connects to the two first connection holes 101.

[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the base 1 has a first connection hole 101 and a second connection hole 102 on both sides. The first connection hole 101 and the second connection hole 102 are each fitted with an outer tube 2 and an inner tube 3. The installation method is fixed installation, and the fixed installation method includes but is not limited to welding. At the same time, the pressure transmitter is installed on the top of the base 1.

[0031] After installation, the inner tube 3 serves as a medium conveying pipeline for transporting fluids that require heat preservation, such as heavy oil and chemical raw materials. The medium first enters the inner tube 3, and after flowing out of the inner tube 3, it enters the medium flow channel 106 inside the base 1. After the medium fills the medium flow channel 106, the pressure is transmitted through the measuring hole 103 located above it to the measuring diaphragm of the pressure transmitter that has been installed. Finally, the pressure transmitter senses the pressure and converts it into a standard electrical signal, which is then transmitted to the control system.

[0032] The tracing steam flows in from the steam pipe and enters the tracing cavity between the outer pipe 2 and the inner pipe 3. The steam flows along the annular space and enters the steam channel 107 of the base 1. During the entire process of the high-temperature steam flowing through the tracing cavity and the steam channel 107, the heat of the steam continuously passes through the pipe wall of the inner pipe 3 and the medium channel 106 and is finally transferred to the medium flowing inside. After the heat exchange is completed, the steam will condense into water and flow out from the tracing cavity on the other side.

[0033] The entire heating process ensures that the medium is uniformly heated from the moment it enters the measuring hole 103 from the inner tube 3 until its pressure is measured, completely eliminating the risk of solidification or crystallization caused by local heat dissipation, and fundamentally guaranteeing the accuracy and continuity of the measurement.

[0034] Specifically, the installation method of the transmitter is optimized, such as... Figure 1 and Figure 2As shown, the top of the base 1 has several mounting holes 105 for connecting to the pressure transmitter; the pressure transmitter can be firmly fixed to the base 1 with bolts through the mounting holes 105 to prevent the pressure transmitter from loosening or falling off.

[0035] Secondly, a docking groove 108 is provided on the top of the base 1. The docking groove 108 is coaxially arranged with the measuring hole 103, which can provide an installation position for the measuring end of the pressure transmitter. When the measuring end of the pressure transmitter is placed into the docking groove 108, the side wall of the groove will automatically guide and correct the position of the transmitter to ensure that its measuring diaphragm is precisely aligned with the measuring hole 103 of the base 1, thus ensuring measurement accuracy.

[0036] Furthermore, an annular groove 104 is provided on the bottom surface of the docking groove 108, and a sealing ring 4 is provided in the annular groove 104. When the pressure transmitter is fixedly installed on the base 1 by bolts, the end face of the measuring diaphragm of the pressure transmitter will be evenly pressed on the sealing ring 4, ensuring that the measured medium is completely sealed in the cavity composed of the inner tube 3, the medium flow channel 106, the measuring hole 103 and the transmitter diaphragm, further ensuring the measurement accuracy.

[0037] Meanwhile, the first connecting hole 101 and the second connecting hole 102 are coaxially arranged, ensuring that the outer tube 2 and the inner tube 3 maintain a consistent annular spacing throughout their entire length, so that heat can be evenly and comprehensively transferred from all sides to the medium in the inner tube 3.

[0038] Specifically, such as Figure 1 As shown, both the first connecting hole 101 and the second connecting hole 102 are radially recessed along the base 1, forming a first socket and a second socket respectively. The outer tube 2 and the inner tube 3 are respectively installed in the first socket and the second socket. The first socket and the second socket provide installation and positioning space for the outer tube 2 and the inner tube 3, facilitating the initial installation of the outer tube 2 and the inner tube 3. Moreover, the outer tube 2 and the first socket, as well as the inner tube 3 and the second socket, have a clearance fit, which increases the connection stability of the outer tube 2 and the inner tube 3 in the initial installation in the first socket and the second socket. This provides a benchmark for subsequent coaxiality assurance and welding operations, and also increases the ability of the connection to withstand internal pressure, external load, and vibration fatigue, avoiding the risk of cracking due to insufficient welding strength.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressure transmitter connector, characterized in that, include: The base (1) has a measuring hole (103) corresponding to the pressure transmitter. The base (1) has an outer tube (2) and an inner tube (3). A first connecting hole (101) and a second connecting hole (102) are provided on both sides of the base (1). The outer tube (2) is connected to the first connecting hole (101), and the inner tube (3) is connected to the second connecting hole (102). The base (1) has a medium flow channel (106) and a steam flow channel (107). The medium flow channel (106) extends through the measuring hole (103) and connects to the two second connecting holes (102). The steam flow channel (107) connects to the two first connecting holes (101).

2. The pressure transmitter connector according to claim 1, characterized in that, The top of the base (1) is provided with several mounting holes (105) for connecting to the pressure transmitter.

3. The pressure transmitter connector according to claim 1, characterized in that, The top of the base (1) is provided with a docking groove (108), which is coaxially arranged with the measuring hole (103).

4. The pressure transmitter connector according to claim 3, characterized in that, The bottom surface of the docking groove (108) is provided with an annular groove (104), and a sealing ring (4) is provided in the annular groove (104).

5. The pressure transmitter connector according to claim 1, characterized in that, The first connecting hole (101) and the second connecting hole (102) are coaxially arranged.

6. The pressure transmitter connector according to claim 5, characterized in that, The first connecting hole (101) and the second connecting hole (102) are both recessed along the radial direction of the base (1) and form a first socket and a second socket respectively. The outer tube (2) and the inner tube (3) are respectively installed in the first socket and the second socket.

7. The pressure transmitter connector according to claim 6, characterized in that, The outer tube (2) and the first socket are both clearance-fitted, as are the inner tube (3) and the second socket.

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