CN207379662U - A kind of atmospheric pressure pressure obtaning device - Google Patents
A kind of atmospheric pressure pressure obtaning device Download PDFInfo
- Publication number
- CN207379662U CN207379662U CN201721396843.3U CN201721396843U CN207379662U CN 207379662 U CN207379662 U CN 207379662U CN 201721396843 U CN201721396843 U CN 201721396843U CN 207379662 U CN207379662 U CN 207379662U
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- box body
- layer box
- perforate
- fixed ear
- rear end
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Abstract
The utility model belongs to atmosphere measuring technical field, and in particular to a kind of atmospheric pressure pressure obtaning device.In the utility model, inside outer-layer box body and centre layer box body, interior layer box body are welded into the babinet of four face entities, then are connected with rear end panel full weld；Respectively weld two equal leg angle fixed ears in the four sides of outer-layer box body；Fixed ear and outer-layer box body discontinuous welding, fixed ear perforate position in its center；Fixed ear is fixedly connected with front console；External screw thread ozzle is welded with outer-layer box body, is connected with the perforate in outer-layer box body；Compartment lower face and bevelling are connected with rear end panel；The perforate of adjacent two pieces of compartment items should be front and rear or interlocks up and down, and gauge pipe penetrates boxing sealed around after the panel of rear end.The utility model can ensure that the signal of the pressure gauge (transmitter) of rear end can export stabilization, will not occur signal output fluctuation because of air flow.
Description
Technical field
The utility model belongs to atmosphere measuring technical field, and in particular to a kind of atmospheric pressure pressure obtaning device.
Background technology
In commercial Application, some special workshops need to maintain certain negative pressure, and the pressure that maintains of its needs with
Atmospheric pressure is very close, is usually maintained in -100Pa~-400Pa.Accurate workshop pressure measuring instrument or amount are needed to configure therefore
Journey is in the micromanometer (transmitter) of -600.0~0.0Pa.The suction side of usual workshop pressure measuring instrument or micromanometer (transmitter)
Pressure reference point is disposed in the outdoor.Outdoor air-flow direction is changeable, and flowing velocity is also different, causes the wink of regional area
Between positive pressure or negative pressure.If pressure reference point just in above-mentioned zone, can cause the fluctuation of atmospheric pressure reading or minute-pressure number
According to fluctuation.Faster in air velocity, local positive pressure may be more than the range of micromanometer, cause micromanometer (pick-up
Device) Full-span output, it can not show currently practical pressure difference.By taking the containment building of certain nuclear power station as an example, according to the technology of approval
Specification, workshop need the tiny structure of maintenance -150Pa~-250Pa.
It adjusts to realize maintenance negative pressure by air supplying and exhausting system valve opening, and the signal output conduct of the different transmitter of elementary errors
The input signal of valve opening adjustment.The measurement of tiny structure relies on differential pressure transmitter, the pressure reference point difference cloth of transmitter
It puts in outdoor.Due to Nuclear Power Station by the sea, wind-force and wind direction are changeable, and under the larger meteorological condition of wind-force, elementary errors is different
Transmitter output signal fluctuation, fluctuating range are more than 400Pa, and air supplying and exhausting system valve is caused significantly to act, is repeatedly caused
Air supplying and exhausting system is jumped automatic.
The content of the invention
The technical issues of the utility model solves：The utility model provides a kind of atmospheric pressure pressure obtaning device, can realize air
The stably measured of pressure, stabilization can be exported by ensureing the signal of the pressure gauge (transmitter) of rear end, will not be gone out because of air flow
Existing signal output fluctuation.
The technical solution adopted in the utility model：
A kind of atmospheric pressure pressure obtaning device, including outer-layer box body, intermediate layer box body, interior layer box body, compartment item, gauge pipe, outer
Screw thread ozzle, fixed ear, front console, rear end panel；Inside outer-layer box body and centre layer box body, interior layer box body, are welded into four sides
The babinet of entity, then be connected with rear end panel full weld；Respectively weld two equal leg angle fixed ears in the four sides of outer-layer box body；Fixed ear
With outer-layer box body discontinuous welding, fixed ear perforate position in its center；Fixed ear is fixedly connected with front console；External screw thread ozzle with
Outer-layer box body is welded, and is connected with the perforate in outer-layer box body；Compartment lower face and bevelling are connected with rear end panel；Adjacent two pieces
The perforate of compartment item should be front and rear or interlocks up and down, and gauge pipe penetrates boxing sealed around after the panel of rear end.
The outer-layer box body has the perforate of a Φ 3mm, intermediate layer box body to have the perforate of a Φ 2mm, interior layer box body to have a Φ
The perforate of 1mm.
The fixed ear and front console should be less than outer case.
In addition to 2, top fixed ear is by mating bolt making circular hole, remaining 6 fixed ear need to open slotted hole, for assembling
Meet the needs for uniformly compressing front console in the process.
Must assure that compartment item enter position after front console it is concordant with babinet.
Compartment perforate between the outer-layer box body and intermediate layer box body is Φ 2.5mm, intermediate layer box body and internal layer case
The compartment perforate of body is Φ 1.5mm.
The beneficial effects of the utility model：
(1) a kind of atmospheric pressure pressure obtaning device provided by the utility model, box house setting multilayer compartment item, adjacent two pieces
(upper and lower) flow for interlocking, limiting air transfer before and after the perforate of compartment item；
(2) a kind of atmospheric pressure pressure obtaning device provided by the utility model, is designed with three layer box bodies, has a Φ per layer box body
The perforate of 1~3mm makes every layer box body be connected together, and limits the flow of air transfer；
(3) a kind of atmospheric pressure pressure obtaning device provided by the utility model can effectively cut down outdoor air flow side
To it is changeable when, the impact to pressure balance intraventricular pressure power achievees the effect that surge suppressing, so as to fulfill atmospheric pressure stablize
Measurement.
Description of the drawings
Fig. 1 is a kind of atmospheric pressure pressure obtaning device front view provided by the utility model；
Fig. 2 is a kind of atmospheric pressure pressure obtaning device side sectional view provided by the utility model；
In figure：1- outer-layer box bodies, layer box body among 2-, layer box body, 4- compartments item, 5- gauge pipes, 6- male-pipes in 3-
Mouth, 7- fixed ears, 8- holes, 9- holes, 10- holes, 11- front consoles, 12- rear ends panel.
Specific embodiment
A kind of atmospheric pressure pressure obtaning device provided by the utility model is made in the following with reference to the drawings and specific embodiments further
It is described in detail.
As depicted in figs. 1 and 2, a kind of atmospheric pressure pressure obtaning device provided by the utility model, including outer-layer box body 1, centre
Layer box body 2, interior layer box body 3, compartment item 4, gauge pipe 5, external screw thread ozzle 6, fixed ear 7, hole 8, hole 9, hole 10, front console
11st, rear end panel 12；
The inside of outer-layer box body 1 and intermediate layer box body 2, interior layer box body 3, are welded into the babinet of four face entities, then with rear end panel
12 full welds connect.Outer-layer box body 1 has the perforate 8 of a Φ 3mm, intermediate layer box body 2 to have the perforate 9 of a Φ 2mm, interior layer box body 3 to have
The perforate 10 of one Φ 1mm.Respectively weld two equal leg angle fixed ears 7 in the four sides of outer-layer box body 1.Fixed ear 7 is disconnected with outer-layer box body 1
Continuous weldering, 7 perforate of fixed ear position in its center.Fixed ear 7 is fixedly connected by screw with front console 11；Fixed ear 7 is with before
End plates 9 should be less than outer case；In addition to 2, top fixed ear 7 is by mating bolt making circular hole, remaining 6 fixed ear 7 need to open length
Circular hole, for meeting the needs for uniformly compressing front console 11 in assembling process.
External screw thread ozzle 6 is connected by being welded with outer-layer box body 1 with perforate 8.4 lower face of compartment item and bevelling smear glass
It is connected after glue with rear end panel 12.Must assure that compartment item 4 enter position after front console 11 it is concordant with babinet.Adjacent two pieces of compartment items
4 perforate should it is front and rear it is (upper and lower) staggeredly, 4 perforate of compartment item between outer-layer box body 1 and intermediate layer box body 2 is Φ 2.5mm, centre
4 perforate of compartment item of layer box body 2 and interior layer box body 3 is Φ 1.5mm.Gauge pipe 5 penetrates boxing sealed around after rear end panel 12,
Carry out 100%PT permeability tests.
The operation principle of the utility model is：
In the case where device surrounding air is there are direction and the continually changing air-flow of speed, air is by external screw thread ozzle
6 enter outer-layer box body 1, and the atmospheric pressure of big ups and downs can be buffered by the compartment item 4 in outer-layer box body 1, is transferred to interlayer
Babinet 2 buffers again by compartment item 4 in intermediate layer box body 2, and air is transferred to gauge pipe 5 by interior layer box body 3, by instrument
Table pipe 5 is eventually transferred to measurement pressure gauge (transmitter).
Claims (6)
1. a kind of atmospheric pressure pressure obtaning device, it is characterised in that：Including outer-layer box body (1), intermediate layer box body (2), interior layer box body
(3), compartment item (4), gauge pipe (5), external screw thread ozzle (6), fixed ear (7), front console (11), rear end panel (12)；Outside
The internal and intermediate layer box body (2) of layer box body (1), interior layer box body (3), are welded into the babinet of four face entities, then with rear end panel (12)
Full weld connects；Respectively weld two equal leg angle fixed ears (7) in the four sides of outer-layer box body (1)；Fixed ear (7) and outer-layer box body (1)
Discontinuous welding, fixed ear (7) perforate position in its center；Fixed ear (7) is fixedly connected with front console (11)；External screw thread ozzle
(6) weld with outer-layer box body (1), connected with the perforate in outer-layer box body (1)；Compartment item (4) lower face and bevelling and rear end face
Plate (12) connects；The perforate of adjacent two pieces of compartment items (4) should be front and rear or interlocks up and down, and gauge pipe (5) penetrates rear end panel (12)
Boxing sealed around afterwards.
2. a kind of atmospheric pressure pressure obtaning device according to claim 1, it is characterised in that：The outer-layer box body (1) has a Φ
The perforate of 3mm, intermediate layer box body (2) have the perforate of a Φ 2mm, interior layer box body (3) to have the perforate of a Φ 1mm.
3. a kind of atmospheric pressure pressure obtaning device according to claim 1, it is characterised in that：The fixed ear (7) and front end face
Plate (9) should be less than outer case.
4. a kind of atmospheric pressure pressure obtaning device according to claim 3, it is characterised in that：Except 2, top fixed ear (7) is by matching somebody with somebody
It covers outside bolt making circular hole, remaining 6 fixed ear (7) need to open slotted hole, and front end face is uniformly compressed for meeting in assembling process
The needs of plate (11).
5. a kind of atmospheric pressure pressure obtaning device according to claim 1, it is characterised in that：It must assure that compartment item (4) enters position
Front console (11) is concordant with babinet afterwards.
6. a kind of atmospheric pressure pressure obtaning device according to claim 1, it is characterised in that：The outer-layer box body (1) and centre
Compartment item (4) perforate between layer box body (2) is Φ 2.5mm, and intermediate layer box body (2) and the compartment item (4) of interior layer box body (3) are opened
Hole is Φ 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721396843.3U CN207379662U (en) | 2017-10-26 | 2017-10-26 | A kind of atmospheric pressure pressure obtaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721396843.3U CN207379662U (en) | 2017-10-26 | 2017-10-26 | A kind of atmospheric pressure pressure obtaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207379662U true CN207379662U (en) | 2018-05-18 |
Family
ID=62336416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721396843.3U Active CN207379662U (en) | 2017-10-26 | 2017-10-26 | A kind of atmospheric pressure pressure obtaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207379662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731871A (en) * | 2017-10-26 | 2018-11-02 | 江苏核电有限公司 | A kind of atmospheric pressure pressure obtaning device |
-
2017
- 2017-10-26 CN CN201721396843.3U patent/CN207379662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731871A (en) * | 2017-10-26 | 2018-11-02 | 江苏核电有限公司 | A kind of atmospheric pressure pressure obtaning device |
| CN108731871B (en) * | 2017-10-26 | 2024-04-09 | 江苏核电有限公司 | Atmospheric pressure taking device |
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