CN219391020U - Three-valve group with temperature and pressure compensation - Google Patents
Three-valve group with temperature and pressure compensation Download PDFInfo
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- CN219391020U CN219391020U CN202223386392.9U CN202223386392U CN219391020U CN 219391020 U CN219391020 U CN 219391020U CN 202223386392 U CN202223386392 U CN 202223386392U CN 219391020 U CN219391020 U CN 219391020U
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Abstract
The utility model provides a three-valve group with temperature and pressure compensation, which is arranged on a throttling device, wherein the throttling device comprises a tube seat and a throttling piece arranged in the tube seat, the three-valve group comprises a three-valve group body, a positive pressure side pressure taking tube, a negative pressure side pressure taking tube, a pressure compensation joint and a temperature compensation joint, one end of the positive pressure side pressure taking tube is communicated with a high pressure cavity of the three-valve group body, the other end of the positive pressure side pressure taking tube is adjacent to the upstream side of the throttling piece and is communicated with the tube seat, one end of the negative pressure side pressure taking tube is communicated with a low pressure cavity of the three-valve group body, and the other end of the negative pressure side pressure taking tube is adjacent to the downstream side of the throttling piece and is communicated with the tube seat; the pressure compensation joint is positioned on the high-pressure cavity and is communicated with the high-pressure cavity; the temperature compensation joint is positioned on the negative pressure side pressure taking pipe and is communicated with the negative pressure side pressure taking pipe. The pressure compensation joint and the temperature compensation joint are respectively arranged on the three-valve group body and the negative pressure side pressure taking pipe, so that the installation of the pressure transmitter and the temperature transmitter is not influenced by the size of the space around the upper part and the lower part of the throttling device, and the installation is convenient.
Description
Technical Field
The utility model relates to the technical field of flow measurement, in particular to a three-valve group with temperature and pressure compensation.
Background
The flow metering is widely applied to the industries of chemical engineering, metallurgy, light industry, polyester chemical fiber and the like, and the flow of fluid is influenced by the pressure and the temperature of the fluid, so that in order to improve the accuracy of measurement, the pressure and the temperature of the fluid need to be measured in real time so as to perform temperature-pressure compensation (temperature compensation and pressure compensation), thereby realizing accurate measurement of the flow.
As shown in fig. 1, it is currently generally adopted that a pressure compensating joint 1 and a temperature compensating joint 2 are disposed on a throttling device, the throttling device includes a tube seat 3 and a throttling element 4 installed in the tube seat 3, the pressure compensating joint 1 and the temperature compensating joint 2 are respectively disposed on an upstream side and a downstream side of the throttling element 4, a pressure transmitter and a temperature transmitter respectively implement real-time measurement of pressure and temperature of fluid through the pressure compensating joint 1 and the temperature compensating joint 2, and then implement calculation of temperature and pressure compensation by using an integrating instrument and other devices, thereby implementing accurate measurement of flow. According to the installation specification, when the temperature transmitter is installed, the temperature transmitter is installed at a position of 1D-3D (D is the nominal diameter of a pipeline) in the downstream of the throttling device; when the pressure transmitter is installed, the pressure transmitter should be installed at a position of 1D-3D (D is the nominal diameter of the pipeline) upstream in the throttling device.
However, in the practical use process, it is found that, in order to access the pressure transmitter and the temperature transmitter upstream and downstream of the throttling element 4, a large installation space needs to be reserved, and a certain limitation exists, the installation difficulty and the displacement requirement are inevitably met, the design needs to be planned again, the time is long, and the construction cost of the joint needs to be increased additionally.
Disclosure of Invention
The utility model aims to provide a three-valve group with temperature and pressure compensation, which solves the problem that the installation of the existing pressure transmitter and temperature transmitter is influenced by the size of the front and rear spaces of a throttling device, so that the installation is unchanged.
In order to achieve the above purpose, the utility model provides a three-valve set with temperature and pressure compensation, which is arranged on a throttling device, wherein the throttling device comprises a tube seat and a throttling element arranged in the tube seat, the three-valve set comprises a three-valve set body, a positive pressure side pressure taking tube, a negative pressure side pressure taking tube, a pressure compensation joint and a temperature compensation joint, one end of the positive pressure side pressure taking tube is communicated with a high-pressure cavity of the three-valve set body, the other end of the positive pressure side pressure taking tube is adjacent to the upstream side of the throttling element and is communicated with the tube seat, one end of the negative pressure side pressure taking tube is communicated with a low-pressure cavity of the three-valve set body, and the other end of the negative pressure side pressure taking tube is adjacent to the downstream side of the throttling element and is communicated with the tube seat;
the pressure compensation joint is used for connecting a pressure transmitter, is positioned on the high-pressure cavity and is communicated with the high-pressure cavity;
the temperature compensation joint is used for being connected with a temperature transmitter and is positioned on the negative pressure side pressure taking pipe and communicated with the negative pressure side pressure taking pipe.
Optionally, the temperature compensation joint and the negative pressure side pressure taking pipe are arranged at a preset angle.
Optionally, the preset angle is between 30 ° and 45 °.
Optionally, one end of the temperature compensation joint is provided with external threads in threaded connection with the negative pressure side pressure taking pipe.
Optionally, the other end of the temperature compensation joint is provided with internal threads in threaded connection with the temperature transmitter.
Optionally, one end of the pressure compensation joint is provided with external threads in threaded connection with the high-pressure cavity.
Optionally, the other end of the pressure compensating joint has internal threads that are threadably coupled to the pressure transmitter.
Optionally, the three-valve group further includes a first plug and a second plug, the first plug is detachably mounted at the pressure compensation joint and is used for sealing the pressure compensation joint, and the second plug is detachably mounted at the temperature compensation joint and is used for sealing the temperature compensation joint.
Optionally, the pressure compensation joint and the temperature compensation joint are made of stainless steel.
Optionally, the three-valve group further comprises a connecting frame with a hollow structure, two ends of the connecting frame are respectively connected with the tube seat and the three-valve group body, and the positive pressure side pressure taking tube and the negative pressure side pressure taking tube are both positioned in the connecting frame.
In the three-valve group with temperature and pressure compensation, the pressure compensation joint and the temperature compensation joint are respectively arranged on the three-valve group body and the negative pressure side pressure taking pipe, so that the installation of the pressure transmitter and the temperature transmitter is not influenced by the size of the space around the upper part, the lower part and the front part of the throttling device, the structure is simple, and the installation is convenient.
Drawings
Those of ordinary skill in the art will appreciate that the figures are provided for a better understanding of the present utility model and do not constitute any limitation on the scope of the present utility model. Wherein:
FIG. 1 is a schematic diagram of the installation of a prior art compensation fitting;
FIG. 2 is a front view of a three-valve set with temperature and pressure compensation according to an embodiment of the present utility model;
fig. 3 is a side view of a three-valve set with temperature and pressure compensation according to an embodiment of the present utility model.
In the accompanying drawings:
1-a pressure compensating joint; 2-a temperature compensation joint; 3-tube seat; 4-throttle;
10-a pressure compensating joint; 20-temperature compensation joint; 30-tube seat; 40-throttle; 50-a triple valve set body; 60-a positive pressure side pressure taking pipe; 70-a negative pressure side pressure taking pipe; 80-connecting frame.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the utility model more apparent. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the understanding and reading of the present disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by the present disclosure, should fall within the scope of the present disclosure under the same or similar circumstances as the effects and objectives attained by the present utility model.
As used in this disclosure, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this disclosure, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise. As used in this disclosure, the term "plurality" is generally employed in its sense including "at least one" unless the content clearly dictates otherwise. As used in this disclosure, the term "at least two" is generally employed in its sense including "two or more", unless the content clearly dictates otherwise. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" may include one or at least two such features, either explicitly or implicitly.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 2 and 3, fig. 2 is a front view of a triple valve set with temperature and pressure compensation according to an embodiment of the present utility model; fig. 3 is a side view of a three-valve set with temperature and pressure compensation according to an embodiment of the present utility model. The embodiment provides a three-valve set with temperature and pressure compensation, which is arranged on a throttling device, wherein the throttling device comprises a tube seat 30 and a throttling element 40 arranged in the tube seat 30, the three-valve set comprises a three-valve set body 50, a positive pressure side pressure taking tube 60, a negative pressure side pressure taking tube 70, a pressure compensation joint 10 and a temperature compensation joint 20, one end of the positive pressure side pressure taking tube 60 is communicated with a high-pressure cavity of the three-valve set body 50, the other end of the positive pressure side pressure taking tube 60 is adjacent to the upstream side of the throttling element 40 and is communicated with the tube seat 30, one end of the negative pressure side pressure taking tube 70 is communicated with a low-pressure cavity of the three-valve set body 50, and the other end of the negative pressure side pressure taking tube 70 is adjacent to the downstream side of the throttling element 40 and is communicated with the tube seat 30;
the pressure compensation connector 10 is used for connecting a pressure transmitter, and the pressure compensation connector 10 is positioned on the high-pressure cavity and is communicated with the high-pressure cavity;
the temperature compensation connector 20 is used for being connected with a temperature transmitter, and the temperature compensation connector 20 is located on the negative pressure side pressure taking pipe 70 and is communicated with the negative pressure side pressure taking pipe 70.
By arranging the pressure compensation joint 10 and the temperature compensation joint 20 on the three-valve group body 50 and the negative pressure side pressure taking pipe 70 respectively, the installation of the pressure transmitter and the temperature transmitter is not influenced by the size of the space around the upper part and the lower part of the throttling device, and the structure is simple and the installation is convenient.
Specifically, the pressure compensating joint 10 is located on the high-pressure chamber and is in communication with the high-pressure chamber, and the temperature compensating joint 20 is located on the negative pressure side pressure taking pipe 70 and is in communication with the negative pressure side pressure taking pipe 70. Because the probes of the pressure transmitter and the temperature transmitter are different, the pressure compensation connector 10 is arranged on the high-pressure cavity, and the temperature compensation connector 20 is arranged on the negative pressure side pressure taking pipe 70, so that the probes of the pressure transmitter and the temperature transmitter can be more conveniently connected, and the measurement sensitivity is improved.
Preferably, the temperature compensation joint 20 is disposed at a predetermined angle with respect to the suction side pressure tapping pipe 70. More preferably, the predetermined angle is between 30 ° and 45 °. Because the probe of the temperature transmitter is longer, the probe can be prevented from being directly abutted against the inner wall of the negative pressure side pressure taking pipe 70 by obliquely arranging the temperature compensation joint 20, so that the probe can be conveniently inserted into the temperature compensation joint 20 and extend to the center of the negative pressure side pressure taking pipe 70, and the measurement sensitivity is improved.
In this embodiment, one end of the temperature compensation connector 20 has an external thread in threaded connection with the negative pressure side pressure taking pipe 70, and the temperature compensation connector 20 can be conveniently installed and detached by adopting a threaded connection manner, so that replacement and maintenance are more convenient. Of course, in addition to the threaded connection, the connection may be performed by welding or the like, which is not limited in this application.
In this embodiment, the other end of the temperature compensation connector 20 has an internal thread that is screwed to the temperature transmitter. The temperature transmitter probe can be conveniently installed and detached by adopting a threaded connection mode, so that the temperature transmitter can be flexibly connected according to temperature compensation requirements.
In this embodiment, one end of the pressure compensating joint 10 has an external thread screwed with the high pressure chamber. The pressure compensation joint 10 can be conveniently installed and detached by adopting a threaded connection mode, and replacement and maintenance are convenient. Of course, in addition to the threaded connection, the connection may be performed by welding or the like, which is not limited in this application.
In this embodiment, the other end of the pressure compensating joint 10 has internal threads that are threadably coupled to the pressure transmitter. The pressure transmitter probe can be conveniently installed and detached by adopting a threaded connection mode, so that the pressure transmitter can be flexibly connected according to pressure compensation requirements.
Preferably, the triple valve set further comprises a first plug detachably mounted at the pressure compensating joint 10 and used for sealing the pressure compensating joint 10, and a second plug detachably mounted at the temperature compensating joint 20 and used for sealing the temperature compensating joint 20. For example, when the pressure and the temperature do not need to be compensated, the first plug and the second plug can be plugged to the pressure compensation joint 10 and the temperature compensation joint 20 respectively, and when the pressure and the temperature need to be compensated, the first plug and the second plug are removed and then the pressure transmitter and the temperature transmitter are connected.
The first plug and the second plug may be fastened to the pressure compensating joint 10 and the temperature compensating joint 20 by screwing, which is not limited in this application. Of course, in addition to this, a member such as a seal ring may be provided in consideration of the problem of sealability.
In this embodiment, the materials of the pressure compensating joint 10 and the temperature compensating joint 20 may be stainless steel, such as 304 stainless steel, which is not limited in this application.
In this embodiment, the materials of the positive pressure side pressure-taking pipe 60 and the negative pressure side pressure-taking pipe 70 may be stainless steel, such as 304 stainless steel, which is not limited in this application.
Preferably, the triple valve set further includes a hollow connecting frame 80, two ends of the connecting frame 80 are respectively connected with the tube seat 30 and the triple valve set body 50, and the positive pressure side pressure taking tube 60 and the negative pressure side pressure taking tube 70 are both located in the connecting frame 80. In this embodiment, the connecting frame 80 is generally H-shaped, and is used to connect the fluid tube seat 30 and the tri-valve set body 50, and the heat medium can be circulated therein according to the requirement, which is not limited in this application.
In summary, the embodiment of the utility model provides a three-valve group with temperature and pressure compensation, and the pressure compensation connector 10 and the temperature compensation connector 20 are respectively arranged on the three-valve group body 50 and the negative pressure side pressure taking pipe 70, so that the installation of a pressure transmitter and a temperature transmitter is not influenced by the size of the upper and lower front and rear spaces of a throttling device, and the three-valve group is simple in structure and convenient to install.
The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the present utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, the present utility model is intended to include such modifications and alterations insofar as they come within the scope of the utility model or the equivalents thereof.
Claims (10)
1. The three-valve group with the temperature and pressure compensation is arranged on a throttling device, the throttling device comprises a tube seat and a throttling element arranged in the tube seat, and the three-valve group is characterized by comprising a three-valve group body, a positive pressure side pressure taking tube, a negative pressure side pressure taking tube, a pressure compensation joint and a temperature compensation joint, wherein one end of the positive pressure side pressure taking tube is communicated with a high-pressure cavity of the three-valve group body, the other end of the positive pressure side pressure taking tube is adjacent to the upstream side of the throttling element and is communicated with the tube seat, one end of the negative pressure side pressure taking tube is communicated with a low-pressure cavity of the three-valve group body, and the other end of the negative pressure side pressure taking tube is adjacent to the downstream side of the throttling element and is communicated with the tube seat;
the pressure compensation joint is used for connecting a pressure transmitter, is positioned on the high-pressure cavity and is communicated with the high-pressure cavity;
the temperature compensation joint is used for being connected with a temperature transmitter and is positioned on the negative pressure side pressure taking pipe and communicated with the negative pressure side pressure taking pipe.
2. The triple valve train with temperature and pressure compensation according to claim 1, wherein the temperature compensation joint is disposed at a predetermined angle to the negative pressure side pressure take-off tube.
3. The tri-valve stack with temperature and pressure compensation of claim 2 wherein the predetermined angle is between 30 ° and 45 °.
4. The triple valve train with temperature and pressure compensation according to claim 1 or 2, wherein one end of the temperature compensation joint is provided with external threads in threaded connection with the negative pressure side pressure taking pipe.
5. The temperature and pressure compensated triple valve train of claim 4 wherein the other end of the temperature compensated joint has internal threads that are threadably connected to the temperature transmitter.
6. The tri-valve stack with temperature and pressure compensation of claim 1 wherein one end of said pressure compensating fitting has external threads that are threadably connected to said high pressure chamber.
7. The temperature and pressure compensated triple valve train of claim 6 wherein the other end of the pressure compensating fitting has internal threads that threadably connect to the pressure transmitter.
8. The tri-valve stack with temperature and pressure compensation of claim 1 further comprising a first plug removably mounted at the pressure compensating joint and adapted to seal the pressure compensating joint and a second plug removably mounted at the temperature compensating joint and adapted to seal the temperature compensating joint.
9. The tri-valve stack with temperature and pressure compensation of claim 1 wherein the pressure compensation fitting and the temperature compensation fitting are both stainless steel.
10. The triple valve set with temperature and pressure compensation according to claim 1, further comprising a connecting frame with a hollow structure, wherein two ends of the connecting frame are respectively connected with the tube seat and the triple valve set body, and the positive pressure side pressure taking tube and the negative pressure side pressure taking tube are both positioned in the connecting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386392.9U CN219391020U (en) | 2022-12-14 | 2022-12-14 | Three-valve group with temperature and pressure compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386392.9U CN219391020U (en) | 2022-12-14 | 2022-12-14 | Three-valve group with temperature and pressure compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391020U true CN219391020U (en) | 2023-07-21 |
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ID=87168362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223386392.9U Active CN219391020U (en) | 2022-12-14 | 2022-12-14 | Three-valve group with temperature and pressure compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391020U (en) |
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2022
- 2022-12-14 CN CN202223386392.9U patent/CN219391020U/en active Active
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