CN205826198U - A kind of differential pressure transmitter of Novel miniaturization - Google Patents
A kind of differential pressure transmitter of Novel miniaturization Download PDFInfo
- Publication number
- CN205826198U CN205826198U CN201620700681.7U CN201620700681U CN205826198U CN 205826198 U CN205826198 U CN 205826198U CN 201620700681 U CN201620700681 U CN 201620700681U CN 205826198 U CN205826198 U CN 205826198U
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- extension
- pilot
- chamber
- differential pressure
- pressure transmitter
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Abstract
This utility model discloses the differential pressure transmitter of a kind of Novel miniaturization, there is metallic matrix, there is inside metallic matrix pressure transmission chamber, having charged filling liquid in pressure transmission chamber, pressure transmission chamber is provided with center sensing unit, is respectively provided with extension at described metallic matrix axial direction two ends, pilot side chamber it is provided with inside described extension, being kept apart by isolation diaphragm between pilot side chamber and pressure transmission chamber, extension inner radial is provided with pilot passage, and pilot passage connects with pilot side chamber.Extension and described metallic matrix are one, and extension integrally casting is fixed on metallic matrix.The sidepiece of described pilot side chamber has side cover, and pilot side chamber is closed by side cover.This utility model has the advantages that and eliminates the structure such as bolt, mounting assembly, has made the structure of integration, simple in construction into, has assembled and simplify, and cost is the lowest, and volume diminishes, and in-site installation is more flexible.
Description
Technical field
This utility model relates to transmitter technical field, is specifically related to the differential pressure transmitter of a kind of Novel miniaturization.
Background technology
Differential pressure transmitter, for measuring the liquid level of liquid, gas and steam, density and pressure, is then converted into 4-
The current signal output of 20mA DC.Differential pressure transmitter structure in the market is as it is shown in figure 1, flange is by sealing bolt 6
It is connected in sensor base, between sensor base and flange, is provided with sealing member 7.It is additionally provided with installation assembly 8,
It is provided with installing hole 9 on installation assembly 8, is used for whole differential pressure transmitter is installed.Existing differential pressure transmitter structure is complicated, peace
Dress inconvenience；Weight nearly 2kg, cost is higher.And easily lost efficacy in high and low temperature state lower seal 7, and caused sealing not
Tightly.
Utility model content
The purpose of this utility model is to make up the deficiencies in the prior art, it is provided that the differential pressure of a kind of Novel miniaturization becomes
Send device.
In order to reach the purpose of this utility model, technical scheme is as follows:
The differential pressure transmitter of a kind of Novel miniaturization, has metallic matrix, it is characterised in that have biography inside metallic matrix
Pressure chamber, has charged filling liquid in pressure transmission chamber, pressure transmission chamber is provided with center sensing unit, axial at described metallic matrix
Two ends, direction are respectively provided with extension, are provided with pilot side chamber inside described extension, between pilot side chamber and pressure transmission chamber by every
Keeping apart from diaphragm, extension inner radial is provided with pilot passage, and pilot passage connects with pilot side chamber.
Preferably, described extension and described metallic matrix are one or split, extension and metallic matrix
Material is same or different.
Preferably, extension is fixed on metallic matrix by welding, sintering or integrally casting.
Preferably, the sidepiece of described pilot side chamber has side cover, and pilot side chamber is closed by side cover, and side cover with extension is
That be connected or dismountable.
Preferably, described extension is provided with the convex section protruded to radial direction, and pilot passage is located at inside convex section,
Convex section and extension are one or split.
Preferably, between two convex sections, there is spacing.
Preferably, the diameter of pilot side chamber is same or different with the diameter of pressure transmission chamber.
Preferably, the length of convex section and the diameter of metallic matrix are identical or different.
Preferably, the two ends of pressure transmission chamber are isolated diaphragm and seal, and isolation diaphragm is arranged on the medial wall of pilot side chamber.
This utility model has the advantages that
Eliminate the structure such as bolt, mounting assembly, instead of the clamping plate of common differential pressure transmitter, original clamping plate and change
Sending device sensor body to combine together, i.e. made the structure of integration, simple in construction into, assembled and simplify, cost is the lowest, volume
Diminishing, in-site installation is more flexible.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing differential pressure transmitter；
Fig. 2 is the structural representation of this utility model differential pressure transmitter；
Fig. 3 is the side-looking structural representation of Fig. 1；
Fig. 4 is structural representation after the assembling of this utility model differential pressure transmitter；
Fig. 5 is the side-looking structural representation of Fig. 4.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further described, but protection domain of the present utility model not only office
It is limited to embodiment.
Shown in Fig. 2-Fig. 5, the differential pressure transmitter of a kind of Novel miniaturization, there is metallic matrix 1, in metallic matrix 1
Portion has pressure transmission chamber 15, has charged filling liquid in pressure transmission chamber 15, and pressure transmission chamber 15 is provided with center sensing unit 14, in
Heart sensing unit 14 is connected with transmitter test cell, and chip base 12 is arranged on metallic matrix 1 top.Whole differential pressure transmitter
It is arranged on required equipment by bolt.It is respectively provided with an extension 5 at described metallic matrix 1 axial direction two ends, extends
Section 5 and described metallic matrix 1 are one or split, if split, extension 5 can be by welding or sintering
Mode be fixed on metallic matrix 1, preferably sintering.In the present embodiment, extension 5 and described metallic matrix 1 are one
Body, extension 5 is fixed on metallic matrix 1 by the way of integrally casting, replaces the work of common differential pressure transmitter clamping plate
With.Eliminating the parts such as bolt screw flange, simple in construction, assemble and simplify, cost is the lowest.Extension 5 and metallic matrix 1
Material is same or different, and the present embodiment is identical material.
Inside extension 5, be provided with pilot side chamber 2, between pilot side chamber 2 and pressure transmission chamber 15 by isolation diaphragm 13 every
Leaving, extension 5 inner radial is provided with pilot passage 3, and pilot passage 3 connects with pilot side chamber 2, measured medium (liquid/gas
Body) enter pilot side chamber 2 by pilot passage 3.The two ends of pressure transmission chamber 15 are isolated diaphragm 13 and seal, and isolation diaphragm 13 is arranged
On the medial wall of pilot side chamber 2.Measured medium (liquid/gas) respectively enters the pilot of both sides by both sides pilot passage 3
Side chamber 2, produces pressure to isolation diaphragm 13, makes the filling liquid of center sensing unit 14 both sides in pressure transmission chamber 15 produce pressure
Difference, center sensing unit 14 sends the chip on base to after differential pressure signal being detected.
The diameter of pilot side chamber 2 is same or different with the diameter of pressure transmission chamber 10, it is preferred that pilot side chamber
The diameter of 2 is more than the diameter of pressure transmission chamber 10.
The sidepiece of pilot side chamber 2 has side cover 4, and the sidepiece of pilot side chamber is closed by side cover 4, and side cover 4 with extension 5 is
That be connected or dismountable, it is preferred that side cover is dismountable, later maintenance can be easy to.
Extension 5 is provided with the convex section 11 protruded to radial direction, and it is internal that pilot passage 3 is located at convex section 11, protrudes
Section 11 and extension 5 are one or split, and preferably convex section 11 and extension 5 is one.Two convex sections 11
Between there is spacing, measured medium (liquid/gas) is inputted by the pilot passage on convex section 11, owing to installation environment is wanted
Asking, the spacing between convex section 11 is fixing.The length of convex section 11 is identical or different from the diameter of metallic matrix 1, excellent
Selection of land, the length of convex section 11 is identical more than the diameter of metallic matrix 1.
Last it is noted that above example only in order to this utility model is described and and unrestricted this utility model retouched
The technical scheme stated, therefore, although this utility model is had been carried out detailed with reference to each above-mentioned embodiment by this specification
Illustrate, but, it will be understood by those within the art that, still this utility model can be modified or be equal to and replace
Changing, and all are without departing from the technical scheme of spirit and scope of the present utility model and improvement thereof, it all should contain in this practicality new
In the right of type.
Claims (9)
1. a differential pressure transmitter for Novel miniaturization, has metallic matrix (1), it is characterised in that have inside metallic matrix
Pressure transmission chamber (15), has charged filling liquid in pressure transmission chamber, pressure transmission chamber is provided with center sensing unit (14), at described gold
Belong to matrix axial direction two ends and be respectively provided with extension (5), inside described extension, be provided with pilot side chamber (2), pilot side chamber and biography
Being kept apart by isolation diaphragm (13) between pressure chamber, extension inner radial is provided with pilot passage (3), pilot passage and pilot
Side chamber connects.
The differential pressure transmitter of Novel miniaturization the most according to claim 1, it is characterised in that described extension and described gold
Belonging to matrix is one or split, and extension is same or different with the material of metallic matrix.
The differential pressure transmitter of Novel miniaturization the most according to claim 2, it is characterised in that extension is by welding, burning
Knot or integrally casting are fixed on metallic matrix.
The differential pressure transmitter of Novel miniaturization the most according to claim 1, it is characterised in that the sidepiece of described pilot side chamber
Having side cover (4), pilot side chamber is closed by side cover, and side cover is that be connected or dismountable with extension.
The differential pressure transmitter of Novel miniaturization the most according to claim 4, it is characterised in that described extension be provided with to
The convex section (11) that radial direction is protruded, pilot passage is located at inside convex section, and convex section and extension are one or split
's.
The differential pressure transmitter of Novel miniaturization the most according to claim 3, it is characterised in that have between two convex sections
Spacing.
The differential pressure transmitter of Novel miniaturization the most according to claim 1, it is characterised in that the diameter of pilot side chamber and biography
The diameter of pressure chamber is same or different.
The differential pressure transmitter of Novel miniaturization the most according to claim 1, it is characterised in that the length of convex section and metal
The diameter of matrix is identical or different.
The differential pressure transmitter of Novel miniaturization the most according to claim 1, it is characterised in that the two ends of pressure transmission chamber by every
Sealing from diaphragm, isolation diaphragm is arranged on the medial wall of pilot side chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700681.7U CN205826198U (en) | 2016-07-05 | 2016-07-05 | A kind of differential pressure transmitter of Novel miniaturization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700681.7U CN205826198U (en) | 2016-07-05 | 2016-07-05 | A kind of differential pressure transmitter of Novel miniaturization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826198U true CN205826198U (en) | 2016-12-21 |
Family
ID=57564728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620700681.7U Active CN205826198U (en) | 2016-07-05 | 2016-07-05 | A kind of differential pressure transmitter of Novel miniaturization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205826198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953972A (en) * | 2016-07-05 | 2016-09-21 | 上海洛丁森工业自动化设备有限公司 | Novel miniaturized differential pressure transmitter and application thereof |
| CN116878720A (en) * | 2023-04-20 | 2023-10-13 | 汉斯韦尔(山东)物联技术有限公司 | High stable silicon differential pressure sensor |
-
2016
- 2016-07-05 CN CN201620700681.7U patent/CN205826198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953972A (en) * | 2016-07-05 | 2016-09-21 | 上海洛丁森工业自动化设备有限公司 | Novel miniaturized differential pressure transmitter and application thereof |
| CN116878720A (en) * | 2023-04-20 | 2023-10-13 | 汉斯韦尔(山东)物联技术有限公司 | High stable silicon differential pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xujian Inventor after: Li Junyi Inventor after: Zhang Shu Inventor after: Hao Zhenghong Inventor after: Wei Jia Inventor after: Yao Kang Inventor after: Tang Limin Inventor before: Wang Xujian Inventor before: Li Junyi Inventor before: Zhang Shu Inventor before: Hao Zhenghong Inventor before: Wei Jia Inventor before: Yao Kang Inventor before: Tang Limin |
|
| CB03 | Change of inventor or designer information |