CN205426454U - Tightness test's pressure differential measuring device - Google Patents
Tightness test's pressure differential measuring device Download PDFInfo
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- CN205426454U CN205426454U CN201520181669.5U CN201520181669U CN205426454U CN 205426454 U CN205426454 U CN 205426454U CN 201520181669 U CN201520181669 U CN 201520181669U CN 205426454 U CN205426454 U CN 205426454U
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Abstract
The utility model relates to a tightness test's pressure differential measuring device, hold container, induction pipe and contact tube including liquid, liquid hold the container and constitute by a bottom plate, four blocks of bounding walls that have the panel of two through -holes and connect this bottom plate and panel, induction pipe one end insert through the through -hole liquid hold the container, and with panel fixed connection, still be equipped with the ball valve on this induction pipe, contact tube one end through the through -hole insert perpendicularly to liquid hold the bottom of container, and with panel fixed connection, guarantee that the contact tube exceeds the panel certain distance, and perpendicular with the panel. The utility model discloses a survey the liquid level of contact tube department directly perceivedly estimate cabin pressure, when pressure was too big, the fluid passage contact tube was got rid of, and balanced cabin pressure makes cabin pressure maintaining in the constant pressure value, satisfies test requirement.
Description
Technical field
This utility model relates to the building technology field of shipbuilding and other steel constructions, a kind of differential pressure measurement device of tightness test, it is applicable to the air seal test of closed in space, by this differential pressure measurement device, meets tightness test pressure needs and balance cabin pressure.
Technical background
During shipbuilding, hull liquid tank and the empty cabin of isolation need the inspection rule according to " steel seagoing vessel enters level and builds specification " to carry out tightness test.The tightness test stage is divided into: the pre-close property of segmentation, the pre-close property of complete cross section, cabin tightness test, superstructure and deck structure test and liquid tank strength test several test rank.The method of tightness test includes the test of angle welding pump gas, the test of weld seam negative-pressure vacuum, liquid tank pump gas and strength test, Hose Test and other equivalent test.Generally, during the test of cabin pump gas, all for cabin perforates are sealed off by staff, install Pressure gauge, control cabin pump atmospheric pressure by reading in experimentation at one pore in top, cabin.There is certain potential safety hazard in this mode, and first, Pressure gauge belongs to precision instrument, uses, have resulted in instrument damage under the most various complex situations；Second, if pressure gauge reading is forbidden, mislead staff and judge, persistent pressure causes the security incidents such as quick-fried cabin.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, differential pressure measurement device and the measuring method of a kind of tightness test are provided, by measuring and by the way of balance cabin pressure, eliminate the potential safety hazard that measurement apparatus is formed because of malfunctioning or damage, improve operability and the convenience of differential pressure measurement simultaneously.
For achieving the above object, technical solution of the present utility model is as follows:
A kind of differential pressure measurement device of tightness test, its feature is, including liquid containing container, ingress pipe and delivery line,
Described liquid containing container by a base plate, one there is the panel of two through holes and connect four blocks of coaming plates of this base plate and panel and constitute；
Described ingress pipe one end by through hole insert described in liquid containing container, and fixing with described panel be connected, this ingress pipe be additionally provided with ball valve；
Described delivery line one end is inserted perpendicularly into the bottom to described liquid containing container by through hole, and fixing with described panel is connected, it is ensured that delivery line exceeds panel certain distance, and vertical with panel.
It is additionally provided with handrail at described panel upper surface.
The method that the differential pressure measurement device of the tightness test described in utilization carries out differential pressure measurement, its feature is, the method comprises the steps:
1. before the tightness test of cabin, differential pressure measurement device is removed and pushes up to cabin, ingress pipe is connected with compartment roof pipe, ball valve is closed simultaneously；
2. cabin starts to be filled with pump gas, is opened by the ball valve of differential pressure measurement device simultaneously, observes the height of fluid column in delivery line and, with rough estimate cabin pressure, if fluid column will rise to delivery line top, be closed by source of the gas immediately, then closes ball valve at ingress pipe to maintain cabin pressure；
If liquid overflows from delivery line, then it represents that pressure has exceeded specified pump gas test desirable pressure value, by overflowing liquid make fluid column rest on delivery line top no longer overflow time, now close source of the gas and the ball valve of ingress pipe, pressure maintained specified pump atmospheric pressure.
Described step 1. before also include:
Being connected with one end of flexible pipe by the other end of ingress pipe, the other end of this flexible pipe is connected with compartment roof pipe；
The other end of delivery line is connected with flexible pipe, makes flexible pipe reach a certain height by rigid support bar, during to ensure cabin pump gas, have enough pressure.
Compared with prior art, the beneficial effects of the utility model are
1) operation is simple, easy to carry, autobalance cabin pressure；
2) panel is provided with handle, easy to carry, it is simple to the differential pressure measurement of various positions tightness test；
3) panel is provided with ingress pipe and delivery line, is respectively communicated with cabin and the external environment that need to do tightness test；
4) ingress pipe is provided with ball valve, can control gas and enter the flow of measurement apparatus from ingress pipe.
Accompanying drawing explanation
Fig. 1 is the front view of the differential pressure measurement device of this utility model tightness test
Fig. 2 is the top view of the differential pressure measurement device of this utility model tightness test
Fig. 3 is the use state diagram of the differential pressure measurement device of this utility model tightness test
In figure:
1 base plate 2 panel 3 coaming plate
4 ingress pipe 5 delivery line 6 ball valves
7 handrail 8 rigid support bar 9 flexible pipes
10 compartment roof pipes
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, but should not limit protection domain of the present utility model with this.
Referring to the front view that Fig. 1 and Fig. 2, Fig. 1 are the differential pressure measurement devices of this utility model tightness test, Fig. 2 is the top view of the differential pressure measurement device of this utility model tightness test.As it can be seen, the differential pressure measurement device of a kind of tightness test, including liquid containing container, ingress pipe 4 and delivery line 5, described liquid containing container is had the panel 2 of two through holes and connects four blocks of coaming plates 3 of this base plate 1 and panel 2 and constitute by a base plate 1,；Described ingress pipe 4 one end enters described liquid containing container by through hole oblique cutting, and fixing with described panel 2 is connected, and is additionally provided with ball valve 6 on this ingress pipe 4；Described delivery line 5 one end is inserted perpendicularly into the bottom to described liquid containing container by through hole, and fixing with described panel 2 is connected, it is ensured that delivery line 5 exceeds panel 2 certain distance, and vertical with panel 2.It is additionally provided with handrail at described panel 2 upper surface.
In the present embodiment, coaming plate uses one side continuous print angle welding to be connected with base plate, and the coaming plate other end is also adopted by one side continuous print angle welding and is connected by panel.Perforate on panel, penetrates panel by ingress pipe and the delivery line of diameter 22mm, and uses monolateral continuous print angle welding to connect.Handle is connected with panel by monolateral continuous print angle welding.Being connected by of ball valve and ingress pipe is threadeded.
The foot welding height of above-mentioned all of angle welding is 6mm.
This utility model differential pressure measurement device is connected with the cabin needing tightness test by ingress pipe, and observation delivery line liquid-column height ensures cabin pump gas test pressure.
As it is shown on figure 3, by the handle 7 on liquid containing container panel 3, differential pressure measurement device is carried to the top, cabin of tightness test；When using this device, ingress pipe 4 is connected with compartment roof pipe 10, before being filled with pump gas, ball valve 6 is closed, ball valve is opened when being filled with pump gas in cabin, the liquid-column height of the flexible pipe 9 that observation delivery line 5 connects, if cabin pressure is excessive, then liquid overflows to balance cabin pressure by delivery line, after off-test, close source of the gas and ball valve.
The results showed, this utility model has a techniques below effect:
1. make use of air pressure principle, cabin pressure is converted into intuitively liquid-column height, not only facilitates on-site construction operations, it is simple to be carried to various region job, and make and be simply easy to popularize；
2. owing to instead of the effect of Pressure gauge and relief valve, add the safety of cabin pump gas test, eliminate the potential safety hazard caused because of factors such as Pressure gauge damages；
3., when cabin pressure is excessive, pipe at derivation is utilized to discharge liquid to balance cabin pressure, so that cabin pressure maintains required constant pressure value all the time.
Claims (2)
1. the differential pressure measurement device of a tightness test, it is characterised in that include liquid containing container, ingress pipe (3) and delivery line (4),
Described liquid containing container by a base plate (1), one there is the panel (2) of two through holes and connect this base plate (1) and constitute with four pieces of coaming plates (3) of panel (2)；
Described ingress pipe (3) one end by through hole insert described in liquid containing container, and fixing with described panel (2) be connected, this ingress pipe (3) be additionally provided with ball valve (6)；
Described delivery line (4) one end is inserted perpendicularly into the bottom to described liquid containing container by through hole, and fixing with described panel (2) be connected, ensure that delivery line (4) exceeds panel (2) certain distance, and vertical with panel (2).
The differential pressure measurement device of tightness test the most according to claim 1, it is characterised in that be additionally provided with handrail at described panel (2) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181669.5U CN205426454U (en) | 2015-03-30 | 2015-03-30 | Tightness test's pressure differential measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181669.5U CN205426454U (en) | 2015-03-30 | 2015-03-30 | Tightness test's pressure differential measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205426454U true CN205426454U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181669.5U Active CN205426454U (en) | 2015-03-30 | 2015-03-30 | Tightness test's pressure differential measuring device |
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| CN (1) | CN205426454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748924A (en) * | 2015-03-30 | 2015-07-01 | 沪东中华造船(集团)有限公司 | Differential pressure measuring device and method of tightness test |
-
2015
- 2015-03-30 CN CN201520181669.5U patent/CN205426454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748924A (en) * | 2015-03-30 | 2015-07-01 | 沪东中华造船(集团)有限公司 | Differential pressure measuring device and method of tightness test |
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