CN211651926U - Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter - Google Patents
Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter Download PDFInfo
- Publication number
- CN211651926U CN211651926U CN201922191318.3U CN201922191318U CN211651926U CN 211651926 U CN211651926 U CN 211651926U CN 201922191318 U CN201922191318 U CN 201922191318U CN 211651926 U CN211651926 U CN 211651926U
- Authority
- CN
- China
- Prior art keywords
- transmitter
- temperature melt
- gallium
- high temperature
- spring diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a spring diaphragm device and high temperature melt changer for high temperature melt changer. The spring diaphragm device has a bellows structure, and one end of the spring diaphragm device is sealed by a diaphragm, the diaphragm is arranged to conduct a pressure to be measured in a measurement environment, and the other end of the spring diaphragm device is arranged to be communicated with a first cavity filled with a first fluid medium in the high-temperature melt transmitter. Can with the utility model discloses be applied to measuring environment such as high temperature high pressure, high temperature negative pressure, it not only can treat to survey high pressure and realize effectual conduction and measurement, can guarantee good measurement sensitivity and precision moreover.
Description
Technical Field
The utility model relates to a high temperature melt changer correlation technique field to especially, relate to a high temperature melt changer that is used for the spring diaphragm device of high temperature melt changer and wherein is provided with this spring diaphragm device.
Background
At present, most of industries applied to high-temperature melt transmitters belong to high-pressure and high-temperature occasions. The existing measuring diaphragm diameter and the pressure guide cavity of filling liquid of the high-temperature melt transmitter are small, and under the condition of high pressure, when the filling liquid is compressed, the metal diaphragm can cling to the surface of the cavity, so that the pressure is not easy to conduct, and effective measurement cannot be carried out under the condition of high pressure.
In addition, most of the filling liquid in the remote transmission module and the capillary of the high-temperature melt transmitter is organic liquid medium such as silicone oil, fluorine oil, vegetable oil and the like, and when the pressure of the high-temperature medium is measured, if high-viscosity high-temperature-resistant silicone oil is selected, the viscosity of the high-temperature-resistant silicone oil is very high (333-2S) and therefore, will cause a large loss in the pressure transmission performance of the transmitter, while the high temperature silicone oil, when used at full capacity at the nominal melting point, will tend to vaporize within the capillary, which will further affect the pressure transmission. Due to the above characteristics, high-temperature silicone oil cannot be used in a high-temperature negative-pressure measurement environment. However, if a silicone oil with low viscosity is selected, although the fluidity is good, the boiling point is low, when the temperature of the medium is higher than the boiling point, the high-temperature filling liquid in the cavity is gasified instantly, the volume expansion of the cavity directly causes the measuring diaphragm to bulge and is not recoverable permanently, and the function is damaged. Therefore, the high-temperature melt transmitter is not influenced by the high-temperature filling liquid property, so that the high-temperature melt transmitter is further not provided with the high-temperature filling liquid propertyThe capacity of measuring the pressure of the ultra-high temperature medium above 400 ℃.
It should be noted that the foregoing description is provided to facilitate a better understanding of the invention and should not be construed as prior art only by virtue of the inclusion thereof in this section or to indicate that such problems or disadvantages are readily apparent.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a spring diaphragm device for a high temperature melt transmitter and a high temperature melt transmitter having the spring diaphragm device disposed therein, so as to solve or at least alleviate one or more of the above problems and other problems in the prior art.
First, according to the utility model discloses an aspect, it provides a spring diaphragm device for high temperature melt-body changer, spring diaphragm device has bellows structure to its one end is sealed by the diaphragm, the diaphragm is set to be arranged in conducting the pressure of awaiting measuring in the measuring environment, the other end of spring diaphragm device is set to be used for being linked together with the first cavity that fills with first fluid medium in the high temperature melt-body changer.
In a spring diaphragm assembly for a high temperature melt transmitter according to the present invention, optionally, the spring diaphragm assembly is formed by welding using at least two ring segments to form the bellows structure, and/or the spring diaphragm assembly is made of a 17-4PH stainless steel material, and/or the diaphragm is a metal diaphragm.
In a spring diaphragm assembly for a high temperature melt transmitter according to the present invention, optionally, the ring member is configured in a V-shape or a U-shape.
According to the utility model discloses a spring diaphragm device for high temperature melt transmitter, optionally, high temperature melt transmitter still is provided with the second cavity, fill in the second cavity and have heat resistance not higher than the second fluid medium of first fluid medium, and through arranging the second cavity with isolation diaphragm between the first cavity makes first fluid medium with the second fluid medium is isolated and to second fluid medium conduction pressure.
In a spring diaphragm assembly for a high temperature melt transmitter according to the present invention, optionally, at least a portion of each of the first cavity and/or the second cavity is configured to have a capillary structure.
In the spring diaphragm device for a high-temperature melt transmitter according to the present invention, optionally, the first fluid medium is a gallium liquid metal material, and the parameters thereof require a thermal conductivity of more than 10W/m.k and a kinematic viscosity of 5 × 10-8-9×10- 8m2(ii)/s, melting point < 15 ℃ and boiling point > 1000 ℃, and/or the second fluid medium is an organic liquid medium comprising silicone oil, fluoro oil and vegetable oil.
According to the utility model discloses a spring diaphragm device for high temperature melt changer, optionally, gallium liquid metal material is gallium liquid metal or gallium base liquid alloy metal.
According to the utility model discloses a spring diaphragm device for high temperature melt changer, optionally, contain gallium and indium in the composition of gallium-based liquid alloy metal, or contain gallium, indium and tin, or contain gallium, indium, bismuth and zinc.
According to the utility model discloses a composition weight ratio content when being used for high temperature melt changer's spring diaphragm device, optionally, contain gallium and indium in the composition of gallium-based liquid alloy metal is: 75% -90% of gallium and 10% -25% of indium, wherein the gallium-based liquid alloy metal comprises the following components in percentage by weight when the gallium, the indium and the tin are contained: 60% -85% of gallium, 10% -25% of indium and 1% -15% of tin.
Furthermore, according to the utility model discloses a second aspect still provides a high temperature melt changer, be provided with in the high temperature melt changer as above arbitrary the spring diaphragm device for high temperature melt changer.
The principles, features, characteristics, advantages, etc. according to the various aspects of the present invention will be clearly understood from the following detailed description taken in conjunction with the accompanying drawings. For example, through providing according to the utility model discloses a spring diaphragm device and with its application in high temperature melt-body changer, can successfully solve the general conventional diaphragm that exists among the existing equipment and can not realize treating to survey high pressure under measuring environment such as high temperature, high pressure and carry out aspect problem such as effective conduction and measurement. In addition, by combining and using gallium liquid metal material with very high nominal melting point as a measuring medium in the high-temperature melt transmitter, the measurement sensitivity and precision of the high-temperature melt transmitter can be improved, so that the high-temperature melt transmitter can be applied to occasions of high temperature, high pressure, high temperature negative pressure and the like, for example, the high-temperature melt transmitter can be used for realizing accurate and reliable pressure conduction and measurement in a measurement environment with the temperature of 1200 ℃ or higher.
Drawings
The invention will be described in further detail with reference to the drawings and examples, but it should be understood that the drawings are designed solely for purposes of illustration and are not necessarily drawn to scale, but rather are intended to conceptually illustrate the structural configurations described herein.
Fig. 1 is a schematic view of a portion of an embodiment of a high temperature melt transmitter according to the present invention, showing an example of a spring diaphragm assembly disposed in the high temperature melt transmitter.
Fig. 2 is an enlarged cross-sectional structural schematic view of an example of the spring diaphragm device of fig. 1.
Detailed Description
First, it should be noted that the spring diaphragm device for a high temperature melt transmitter of the present invention and the structure, composition, features, advantages, etc. of the high temperature melt transmitter in which the spring diaphragm device is disposed will be specifically described below by way of example, however, all the descriptions are for illustrative purposes only and should not be construed as forming any limitation to the present invention. In this document, the technical terms "first" and "second" are used for the purpose of differential expression only and are not intended to indicate their order or relative importance, the technical term "connected" and its derivatives mean that a specific component is directly and/or indirectly connected to another component, and the technical term "high temperature" means a temperature not lower than, for example, 300 ℃.
Furthermore, any single feature described or implicit in an embodiment herein or any single feature shown or implicit in the drawings or shown or implicit in the drawings may still allow any combination or permutation to continue between the features (or their equivalents) without any technical impediment, and thus further embodiments according to the present invention should also be considered within the scope of this disclosure.
A part of the structure of an embodiment of a high temperature melt transmitter according to the present invention is schematically illustrated in fig. 1, wherein an example of a spring diaphragm device disposed in the high temperature melt transmitter is specifically illustrated, and further structural features of the example of the spring diaphragm device are further illustrated in fig. 2, and the present invention is described in detail below with reference to the above two drawings. For the sake of clarity and brevity, corresponding technical details in high temperature melt transmitters known to those skilled in the art will not be described in detail below.
Referring to fig. 1 and 2 in combination, a spring diaphragm device 5 with a bellows structure is applied in the high-temperature melt transmitter 1, and one end of the spring diaphragm device is arranged to be communicated with the first cavity 2 in the high-temperature melt transmitter 1, and the other end of the spring diaphragm device is sealed by using a diaphragm 6, so that the operations of pressure conduction, measurement and the like of the pressure P to be measured under the measurement environments such as high temperature, high pressure, high temperature, negative pressure and the like can be effectively realized.
Specifically, as shown in fig. 1, one end 51 of the spring diaphragm device 5 may be connected to the first cavity 2 by any one or more possible connection methods, such as welding, screwing, etc., so that the first fluid medium 4 (e.g., gallium liquid metal, gallium-based liquid alloy metal, etc.) filled in the first cavity 2 may flow into a cavity 53 formed by the bellows structure of the spring diaphragm device 5. For example, since the first cavity 2 is usually disposed in the rod-shaped measuring rod 3 of the high-temperature melt transmitter 1, the end 51 of the spring diaphragm device 5 may be directly welded to the measuring rod 3 in actual operation.
Furthermore, the diaphragm 6 can be welded to the other end 52 of the spring diaphragm device 5 by a connection means such as welding for sealing the end, so that the purpose of pressure conduction and measurement of the pressure P to be measured in the measurement environment can be achieved by the diaphragm 6. In the alternative, the membrane 6 may be made of a metal material or another type of high temperature resistant material.
For the spring diaphragm device 5, the bellows structure thereof may be formed by any suitable means, such as machining, casting, etc. By way of illustration, a spring diaphragm assembly 5 having a bellows structure can be conveniently manufactured, for example, as shown in fig. 2, using several annular members 50 (typically 2-4) and joining them by welding, according to different application requirements. As for the ring members 50, any suitable shape configuration such as V-shape, U-shape, etc. may be selected so that it is relatively easy to butt the large and small openings of the ring members 50 one after another and then quickly and efficiently connect them together by welding. For specific applications, the spring diaphragm assembly 5 may be made of a 17-4PH stainless steel material or other suitable material, i.e., the ring 50 may be made of such material.
Prior art fails to provide a spring diaphragm device according to the present invention and uses it in a high temperature melt transmitter, where components or devices such as conventional diaphragms cannot overcome these drawbacks and problems discussed in the foregoing. The present case utility model discloses the people is after a large amount of research analysis and tests, it will be according to have already been proposed innovatively to have the spring diaphragm device with bellows structure use in high temperature melt-body transmitter, because the one end of spring diaphragm device is sealed by the diaphragm and has formed the measurement diaphragm state of compressible resilience, consequently compare with prior art, can increase fluid medium's compression space fairly effectively and can form the effect of compressible resilience, thereby can not lead to because the diaphragm hugs closely on the cavity surface and causes the condition of losing conduction measurement function when waiting to survey high pressure, so can guarantee the effective conduction and the measurement of high pressure, thereby can show conduction and the measuring capability that promotes high temperature melt-body transmitter to high pressure. Therefore, the application range of the high-temperature melt transmitter can be greatly expanded, and the product competitiveness is improved.
In addition, a second cavity 7 in the high-temperature melt transmitter 1 is also shown schematically in the embodiment shown in fig. 1. The second cavity 7 may be filled with a second fluid medium (e.g., silicon oil, fluorine oil, vegetable oil, etc.) having a heat resistance not higher than that of the first fluid medium 4, and the first fluid medium 4 and the second fluid medium having a relatively higher temperature may be isolated from each other by an isolation diaphragm (e.g., a metal diaphragm, not shown) between the first cavity 2 and the second cavity 7, which may transmit the pressure of the first fluid medium 4 to the second fluid medium, which may have a relatively lower temperature, thereby facilitating further transmission of the pressure to the measurement portion of the high temperature melt transmitter 1. Of course, it should be noted that, in some embodiments, the present invention allows that the second cavity does not need to be provided, and the first fluid medium in the first cavity can be used to conduct the pressure P to be measured in the measurement environment in a whole range.
For the first fluid medium 4 used in the high temperature melt transmitter 1, it may have a higher heat resistance than the second fluid medium filled in the second cavity 7 so as to be able to directly cope with the high temperature measurement environment, for example, the first fluid medium 4 may be a gallium liquid metal material, such as gallium liquid metal (i.e. pure liquid gallium) or gallium-based liquid alloy metal, etc. for such gallium liquid metal material, the specific parameters may be required to have a thermal conductivity of > 10W/m.k and a kinematic viscosity of 5 × 10-8-9×10-8m2S, melting point < 15 ℃ and boiling point > 1000 ℃. When the gallium liquid metal material with very high nominal melting point is applied to the high-temperature melt transmitter, even under the condition of approaching the nominal high-temperature limit point, the gallium liquid metal material is not easy to vaporize and still has good fluidity, and the performance can not be influenced, so that the gallium liquid metal material can ensure that a measuring instrument can be used for measuring the gallium liquid metal materialSensitivity and accuracy. According to the practical test show, even under the temperature environment of facing up to 1200 ℃ or higher, according to the utility model discloses a high temperature melt transmitter still can keep having good working property.
Optionally, when the first fluid medium 4 is a gallium-based liquid alloy metal, the composition thereof may contain gallium and indium, for example, the content of the two components by weight ratio may be: gallium 75-90% and indium 10-25%. In addition, gallium, indium and tin may be contained in the gallium-based liquid alloy metal, for example, the contents of the three components may be in the following weight ratio: 60% -85% of gallium, 10% -25% of indium and 1% -15% of tin. In addition, gallium, indium, bismuth and zinc can be contained in the gallium-based liquid alloy metal, and the weight ratio content of the gallium, indium, bismuth and zinc can be selected and set according to the application requirements.
For the second fluid medium that can be used in the high temperature melt transmitter 1, it can be used a filling liquid conventionally used in the industry, such as an organic liquid medium of silicone oil, fluorine oil, vegetable oil, etc. Since the second fluid medium has been isolated from the first fluid medium subjected to high temperature by the isolation diaphragm, it is permissible for the second fluid medium to employ a filling liquid such as ordinary silicone oil used at ordinary temperature.
In the high-temperature melt transmitter 1 shown in fig. 1, a first fluid medium and a second fluid medium are respectively filled in a first cavity and a second cavity 7 for flowing. It will be appreciated that either the first cavity or the second cavity 7 may be partly or wholly configured with a capillary structure, for example, a part of the first cavity 2 in a capillary structure provided in the measuring rod 3 has been schematically shown in fig. 1.
In addition, it should be noted that although in many measurement situations the first fluid medium and the second fluid medium are mostly used in liquid form, the present invention is not intended to exclude the use of fluid media that are not in liquid or not completely liquid state, such as in gas state, gas-liquid mixed state, etc., i.e. fluid media in various possible forms are allowed to be used in the present invention.
The spring diaphragm device for a high temperature melt transmitter and the high temperature melt transmitter provided with the spring diaphragm device according to the present invention have been explained in detail above only by way of example, and these examples are provided only for the purpose of explaining the principles and embodiments of the present invention, but not for the limitation of the present invention, and various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, all equivalent embodiments are intended to fall within the scope of the present invention and are defined by the various claims of the present invention.
Claims (10)
1. A spring diaphragm arrangement for a high-temperature melt transmitter, characterized in that the spring diaphragm arrangement has a bellows construction and is closed at one end by a diaphragm which is arranged for conducting a pressure to be measured in a measurement environment, and at the other end is arranged for communication with a first cavity of the high-temperature melt transmitter which is filled with a first fluid medium.
2. The spring diaphragm assembly of claim 1, wherein the spring diaphragm assembly is formed by welding at least two rings to form the bellows structure, and/or wherein the spring diaphragm assembly is formed from a 17-4PH stainless steel material, and/or wherein the diaphragm is a metal diaphragm.
3. The spring diaphragm apparatus for a high temperature melt transmitter of claim 2, wherein the ring member is configured in a V-shape or a U-shape.
4. The spring diaphragm device for a high temperature melt transmitter according to claim 1, wherein the high temperature melt transmitter is further provided with a second cavity filled with a second fluid medium having a heat resistance not higher than that of the first fluid medium, and the first fluid medium is isolated from the second fluid medium and conducts pressure to the second fluid medium by an isolation diaphragm disposed between the second cavity and the first cavity.
5. The spring diaphragm apparatus for a high temperature melt transmitter of claim 4, wherein at least a portion of each of the first cavity and/or the second cavity is configured to have a capillary structure.
6. The spring diaphragm assembly of any one of claims 4-5 wherein the first fluid medium is a gallium liquid metal material having a thermal conductivity > 10W/m-k and a kinematic viscosity of 5 × 10-8-9×10-8m2(ii)/s, melting point < 15 ℃ and boiling point > 1000 ℃, and/or the second fluid medium is an organic liquid medium comprising silicone oil, fluoro oil and vegetable oil.
7. The spring diaphragm apparatus for a high temperature melt transmitter of claim 6, wherein the gallium liquid metal material is a gallium liquid metal or a gallium-based liquid alloy metal.
8. The spring diaphragm assembly for a high temperature melt transmitter of claim 7, wherein the gallium-based liquid alloy metal comprises a composition of gallium and indium, or comprises gallium, indium and tin, or comprises gallium, indium, bismuth and zinc.
9. The spring diaphragm device for a high temperature melt transmitter of claim 8, wherein the gallium-based liquid alloy metal comprises the following components in weight ratio when gallium and indium are contained in the components: 75% -90% of gallium and 10% -25% of indium, wherein the gallium-based liquid alloy metal comprises the following components in percentage by weight when the gallium, the indium and the tin are contained: 60% -85% of gallium, 10% -25% of indium and 1% -15% of tin.
10. A high temperature melt transmitter, characterized in that a spring diaphragm device for a high temperature melt transmitter according to any one of claims 1-9 is provided in the high temperature melt transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191318.3U CN211651926U (en) | 2019-12-09 | 2019-12-09 | Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191318.3U CN211651926U (en) | 2019-12-09 | 2019-12-09 | Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651926U true CN211651926U (en) | 2020-10-09 |
Family
ID=72695202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922191318.3U Active CN211651926U (en) | 2019-12-09 | 2019-12-09 | Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651926U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629741A (en) * | 2020-11-18 | 2021-04-09 | 上海申狮物联网科技有限公司 | Environment-friendly high temperature melt pressure transmitter |
| DE102021128733A1 (en) | 2021-11-04 | 2023-05-04 | Endress+Hauser SE+Co. KG | pressure transducer |
| DE102021128735A1 (en) | 2021-11-04 | 2023-05-04 | Endress+Hauser SE+Co. KG | Use of a gallium-based alloy as a transmission fluid in a diaphragm seal |
-
2019
- 2019-12-09 CN CN201922191318.3U patent/CN211651926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629741A (en) * | 2020-11-18 | 2021-04-09 | 上海申狮物联网科技有限公司 | Environment-friendly high temperature melt pressure transmitter |
| DE102021128733A1 (en) | 2021-11-04 | 2023-05-04 | Endress+Hauser SE+Co. KG | pressure transducer |
| DE102021128735A1 (en) | 2021-11-04 | 2023-05-04 | Endress+Hauser SE+Co. KG | Use of a gallium-based alloy as a transmission fluid in a diaphragm seal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211651926U (en) | Spring diaphragm device for high-temperature melt transmitter and high-temperature melt transmitter | |
| CN105671394B (en) | Gallium liquid metal material and its application on teletransmission pressure, differential pressure transmitter | |
| US9459170B2 (en) | Process fluid pressure sensing assembly for pressure transmitters subjected to high working pressure | |
| JP6417473B2 (en) | Process isolation diaphragm assembly for metal process seals | |
| CN103454031B (en) | There is the process fluid pressure measurement system of the coupling of improvement | |
| CN108593195B (en) | High-temperature hydraulic pressure sensor packaging structure | |
| US20130233058A1 (en) | Remote seal pressure measurement system for subsea use | |
| EP2899524A1 (en) | High temperature pressure sensor | |
| CN105865701A (en) | High-temperature villiaumite pressure meter | |
| CN105090581A (en) | Safety valve for high-temperature and high-pressure gas delivery pipeline | |
| CN211061103U (en) | Remote transmission device for pressure transmitter, remote transmission pressure transmitter and measuring system | |
| US4283954A (en) | High temperature pressure gauge | |
| CN110608841A (en) | Remote transmission device for pressure transmitter, remote transmission pressure transmitter and measuring system | |
| CN215003819U (en) | High-temperature-resistant and negative-pressure-resistant liquid level measuring device | |
| CN201636331U (en) | Combined cooling type padding component | |
| CN105258826A (en) | Underwater tensile force measurement device | |
| US2748602A (en) | Pressure gage | |
| US10533669B2 (en) | Bi-directional flow control valve | |
| CN202012327U (en) | Cross capillary test packer | |
| CN109296851A (en) | A kind of full welder of teletransmission sealing element | |
| CN111337184B (en) | Ultra-high temperature type pressure transmitter measurement system | |
| WO2023150127A2 (en) | Temperature isolator systems and methods for the assembly thereof | |
| CN218994624U (en) | Sealing structure test device | |
| CN211425749U (en) | Remote-transmission flange pressure transmitter suitable for wide temperature range | |
| CN109186541B (en) | Sedimentation sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |