CN106017778B - A kind of novel pressure measuring device - Google Patents
A kind of novel pressure measuring device Download PDFInfo
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- CN106017778B CN106017778B CN201610276420.1A CN201610276420A CN106017778B CN 106017778 B CN106017778 B CN 106017778B CN 201610276420 A CN201610276420 A CN 201610276420A CN 106017778 B CN106017778 B CN 106017778B
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- connecting pipe
- valve
- spiral
- measuring device
- cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to easy crystallizing gas gaseous pressure field of measuring technique, more particularly to a kind of novel pressure measuring device, the transmitting of pressure is carried out using stainless steel connecting pipe, prevent crystal from generating corrosion to transmitter, a spiral helicine stainless steel connecting pipe is welded at the pressure transmitter body centre of insertion equipment, and the injection transformer oil in entire connecting pipe, fund is saved, maintenance cost is reduced.In order to achieve the above object, the present invention is achieved by the following technical solutions: a kind of novel pressure measuring device, including pressure transmitter, conduit, flange and multiple valves, through-hole is equipped in the middle part of flange, and it is fixedly connected with connecting pipe, the connecting pipe other end connects pressure transmitter, connecting pipe is equipped with shut-off valve, the novel pressure measuring device further includes spiral connecting pipe and cylinder, it is through-hole in the middle part of cylinder, and it is fixedly connected on the other end of flange, the cylinder other side is fixedly connected with spiral connecting pipe, and spiral pilot pipe end is opening.
Description
Technical field
The present invention relates to easy crystallizing gas gaseous pressure field of measuring technique, and in particular to a kind of novel pressure measurement dress
It sets.
Background technique
The gaseous pressure that pressure decomposes column separator in urea production workshop needs monitoring and measurement, mesh in production overshoot
Before, in industry through frequently with gaseous pressure detection device be the plug-in type list flange pressure transmitter with capillary, bellows
Material using 316L stainless steel, which needs external import, is worth 30,000 yuan.Since the measuring medium temperature is high
(130 DEG C) and there is stronger corrosivity, easily crystallized under room temperature, the measuring diaphragm of the instrument barrel end is by the long-term of medium
Corrode and wash away, causes the breakage of measuring diaphragm, so that instrument is caused not measure normally, 2 years left sides of normal service life
The right side, the table procurement cycle is long, expensive, once gone wrong, it is necessary to wait urea systems parking just to can be carried out processing, give work
Skill operation brings very big inconvenience, updates instrument every time, can't in time will be new in addition to the factors such as procurement cycle length, price
Situations such as instrument puts into operation.
Summary of the invention
For above-described deficiency, the present invention provides a kind of novel pressure measuring device, is come using stainless steel connecting pipe
The transmitting for carrying out pressure prevents crystal from generating corrosion to transmitter, welds at the pressure transmitter body centre of insertion equipment
A spiral helicine stainless steel connecting pipe is connect, and the injection transformer oil in entire connecting pipe, save fund, reduces maintenance cost.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of novel pressure measuring device, including pressure transmitter, connecting pipe, spiral connecting pipe plus transformer oil pilot
Pipe, flange and multiple valves, flange middle part is equipped with through-hole, and is fixedly connected with connecting pipe, and the connecting pipe other end connects pressure inverting
Device, connecting pipe are equipped with shut-off valve, and it is logical in the middle part of cylinder that the novel pressure measuring device, which further includes spiral connecting pipe and cylinder,
Hole, and it is fixedly connected on the other end of flange, the cylinder other side is fixedly connected with spiral connecting pipe, and spiral pilot pipe end is to open
Mouthful.
It is additionally provided with two valve groups between the connecting pipe and pressure transmitter, is set in two valve groups there are two valve, respectively
Two valve group shut-off valves and two valve group blowdown valves, two valve group shut-off valves are used to close the access of connecting pipe, and two valve group blowdown valves are used for
Blowdown.
Further, two valve group other side is additionally provided with one section plus transformer oil connecting pipe, adds transformer oil connecting pipe
It is equipped with and adds transformer oil shut-off valve, transformer oil connecting pipe is added to communicate with two valve group blowdown valves.
The spiral connecting pipe, cylinder, connecting pipe and shut-off valve are 316L stainless steel material.
The through-hole of the flange and cylinder is interconnected, and spiral connecting pipe and connecting pipe is connected.
Spiral connecting pipe end draw down, there are the gaps of 0.2mm at draw down.
The diameter of the spiral connecting pipe and connecting pipe is 6mm.
The beneficial effects of the present invention are:
1. the present invention is suitble to alleviate measurement gas to survey with the pressure measurement compared with strong corrosive and easily crystallizing gas
The corrosion for measuring instrument, also prevents gas crystal blocking measuring instrumentss insertion end, and greatly improve measuring instrumentss uses the longevity
Life；
2. the present invention can be by being transformed master meter, the pressure for meeting master meter in special circumstances is surveyed
Amount；PT9301 pressure transmitter is transformed, and through test and operation after a period of time, meets corrosivity, easily crystallize gas
The demand of body pressure measurement；
3. common PT9301 pressure transmitter is costly, at present only external import, equipment maintenance cost is higher, this hair
Bright technology can be very good to save maintenance cost, while the successful implementation of this technology also instrument transformation under not other particular surroundings
Provide experience；
4. improving production efficiency；The detection of instrument and meter or maintenance process all generally require system-down, and the present invention is equipped with
Shut-off valve can safeguard transmitter or be dismounted, to not influence the operation of system by closing shut-off valve.
Detailed description of the invention:
Fig. 1 is general structure schematic diagram of the present invention；
Specific embodiment:
It is described in detail according to attached drawing below about exemplary embodiment of the present invention.
Meaning representated by serial number in figure are as follows: 1- spiral connecting pipe, 2- cylinder, 3- flange, 4- shut-off valve, 5- connecting pipe,
6- adds transformer oil shut-off valve, two valve group shut-off valve of 7-, two valve group blowdown valve of 8-, 9- pressure transmitter, and 10- adds transformer oil to lead
Pressure pipe, two valve group of 11-.
Illustrate exemplary embodiment of the present invention below in conjunction with concrete condition:
A kind of novel pressure measuring device as shown in Figure 1, including pressure transmitter 9, connecting pipe 5, flange 3 and multiple
Valve is equipped with through-hole in the middle part of flange 3, and is fixedly connected with connecting pipe 5, and 5 other end of connecting pipe connects pressure transmitter 9, on connecting pipe 5
Equipped with shut-off valve 4, it is through-hole in the middle part of cylinder 2, and solid that the novel pressure measuring device, which further includes spiral connecting pipe 1 and cylinder 2,
Surely it is connected to the other end of flange 3,2 other side of cylinder is fixedly connected with spiral connecting pipe 1, and 1 end of spiral connecting pipe is opening.
It is additionally provided with two valve groups 11 between the connecting pipe 5 and pressure transmitter 9, is set in two valve groups 11 there are two valve,
Respectively two valve group shut-off valves 7 and two valve group blowdown valves 8, two valve group shut-off valves 7 are used to close the access of connecting pipe, two valve groups row
Dirty valve 8 is used for blowdown.Two valve groups, 11 other side is additionally provided with one section plus transformer oil connecting pipe 10, adds transformer oil connecting pipe
It is equipped with and adds transformer oil shut-off valve 6, transformer oil connecting pipe 10 is added to communicate with two valve group blowdown valves 8.
The spiral connecting pipe 1, cylinder 2, connecting pipe 5 and shut-off valve 4 are 316L stainless steel material.
The through-hole of the flange 3 and cylinder 2 is interconnected, and spiral connecting pipe 1 and connecting pipe 5 is connected.
The 1 end draw down of spiral connecting pipe, there are the gaps of 0.2mm at draw down.
The diameter of the spiral connecting pipe 1 and connecting pipe 5 is 6mm.
This embodiment scheme working principle is described as follows:
The gaseous pressure that pressure decomposes column separator in urea production workshop needs monitoring and measurement, mesh in production overshoot
Before, in industry through frequently with gaseous pressure detection device be the plug-in type list flange pressure transmitter with capillary, bellows
Material using 316L stainless steel, which needs external import, is worth 30,000 yuan.
Using system shutdown chance, original pressure transmitter is torn open back, diameter is transform as to its original measurement capillary
For φ 6 stainless steel connecting pipe come the transmitting for carrying out pressure, crystal generates corrosion to transmitter in order to prevent, in insertion equipment
Pressure transmitter body centre at weld the stainless steel connecting pipe of a helical form φ 6, and inject transformation in entire connecting pipe
Device oil, by the inspection of nearly trimestral operation and system driving and parking, the instrument normal operation, in addition to for company's saving fund,
The requirement of technological operation is preferably met, the technological innovation success of the instrument also mentions for the instrument transformation under other particular surroundings
Experience is supplied.
Originally the instrument makes the silicone oil in capillary be pressurized and passes to the survey of transmitter by medium squeeze cylinder upper diaphragm
Bellows is measured to carry out pressure measurement, removes the diaphragm on cylinder now, welds a helical form in the central hole of its cylinder
The end draw down of stainless steel tube is left behind the gap that diameter is 0.2mm, and in entire pilot by the stainless steel connecting pipe of φ 6
Injection transformer oil, can not only play the transmitting of pressure, but also prevent the refluence of transformer oil in managing.Why it is transformed spiral
Connecting pipe, without the use of straight tube, if be because medium enters in connecting pipe, since the crystal of medium is than transformer oil weight,
Crystal can only accumulate in the bottom of helical form connecting pipe, and cannot be introduced into transmitter, if being transformed into straight tube, it is easy to make
At the refluence of transformer oil in connecting pipe, to cause corrosion of the medium to pressure transmitter 9, can not normally be measured.
A stainless steel shut-off valve 4 is welded at flanged outlet, there are two effects:
First is that can close the valve when transmitter breaks down, transmitter dismounting processing is carried out；
Second is that when if cylinder inner helix pipe has the accumulation of more crystal to influence normal pressure measurement, by the shut-off valve 4
It closes, adds transformer oil shut-off valve by two valve groups using pressure pump, transformer oil is squeezed into connecting pipe；Pressure, which is greater than, to be set
When standby pressure, which is opened, crystal in helix tube can be got, while guaranteed in measurement pipe full of transformer
Oil meets pressure delivery request, guarantees that, in the case where system is not parking, problem can be handled at any time.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention is any
The equivalent changes and modifications that those skilled in the art is made under the premise of not departing from present inventive concept and principle should all belong to
In the scope of protection of the invention.
Claims (4)
1. a kind of novel pressure measuring device, including pressure transmitter, connecting pipe, spiral connecting pipe plus transformer oil connecting pipe,
Flange and multiple valves, flange middle part is equipped with through-hole, and is fixedly connected with connecting pipe, and the connecting pipe other end connects pressure transmitter, leads
Pressure pipe is equipped with shut-off valve, which is characterized in that the novel pressure measuring device further includes spiral connecting pipe and cylinder, in cylinder
Portion is through-hole, and is fixedly connected on the other end of flange, and the cylinder other side is fixedly connected with spiral connecting pipe, spiral connecting pipe end
End is is open, spiral connecting pipe end draw down, and there are the gap of 0.2mm, the connecting pipe and pressure invertings at draw down
It is additionally provided with two valve groups between device, is set in two valve groups there are two valve, respectively two valve group shut-off valves and two valve group blowdown valves, two
Valve group shut-off valve is used to close the access of connecting pipe, and two valve group blowdown valves are used for blowdown, and two valve group other side is additionally provided with one
Section plus transformer oil connecting pipe, add transformer oil connecting pipe be equipped with plus transformer oil shut-off valve, add transformer oil connecting pipe with
Two valve group blowdown valves communicate.
2. novel pressure measuring device according to claim 1, which is characterized in that the spiral connecting pipe, cylinder, pilot
Pipe and shut-off valve are 316L stainless steel material.
3. novel pressure measuring device according to claim 1, which is characterized in that the through-hole of the flange and cylinder is mutual
Connection, and spiral connecting pipe and connecting pipe is connected.
4. novel pressure measuring device according to claim 1, which is characterized in that the spiral connecting pipe and connecting pipe
Diameter is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276420.1A CN106017778B (en) | 2016-04-29 | 2016-04-29 | A kind of novel pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276420.1A CN106017778B (en) | 2016-04-29 | 2016-04-29 | A kind of novel pressure measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017778A CN106017778A (en) | 2016-10-12 |
| CN106017778B true CN106017778B (en) | 2019-05-03 |
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ID=57081694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610276420.1A Active CN106017778B (en) | 2016-04-29 | 2016-04-29 | A kind of novel pressure measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN106017778B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1155883A1 (en) * | 1983-12-02 | 1985-05-15 | Предприятие П/Я А-7544 | Pressure gauge |
| CN2141082Y (en) * | 1992-10-18 | 1993-08-25 | 开封市航天电子仪表厂 | Shockproof pressure gauge |
| JP2009264748A (en) * | 2008-04-21 | 2009-11-12 | Fujikura Ltd | Optical fiber cable for pressure sensor |
| CN103335772A (en) * | 2013-07-15 | 2013-10-02 | 东北石油大学 | Temperature and pressure sensor of fiber Bragg grating |
-
2016
- 2016-04-29 CN CN201610276420.1A patent/CN106017778B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1155883A1 (en) * | 1983-12-02 | 1985-05-15 | Предприятие П/Я А-7544 | Pressure gauge |
| CN2141082Y (en) * | 1992-10-18 | 1993-08-25 | 开封市航天电子仪表厂 | Shockproof pressure gauge |
| JP2009264748A (en) * | 2008-04-21 | 2009-11-12 | Fujikura Ltd | Optical fiber cable for pressure sensor |
| CN103335772A (en) * | 2013-07-15 | 2013-10-02 | 东北石油大学 | Temperature and pressure sensor of fiber Bragg grating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106017778A (en) | 2016-10-12 |
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