CN205175475U - Gasometric determination system - Google Patents

Gasometric determination system Download PDF

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Publication number
CN205175475U
CN205175475U CN201521004078.7U CN201521004078U CN205175475U CN 205175475 U CN205175475 U CN 205175475U CN 201521004078 U CN201521004078 U CN 201521004078U CN 205175475 U CN205175475 U CN 205175475U
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CN
China
Prior art keywords
orifice plate
variable valve
house steward
throttle orifice
throttle
Prior art date
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Active
Application number
CN201521004078.7U
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Chinese (zh)
Inventor
徐法俭
刘继睿
黄志婷
王海雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZIBO VACUUM EQUIPMENT FACTORY CO Ltd
Original Assignee
ZIBO VACUUM EQUIPMENT FACTORY CO Ltd
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Priority to CN201521004078.7U priority Critical patent/CN205175475U/en
Application granted granted Critical
Publication of CN205175475U publication Critical patent/CN205175475U/en
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Abstract

The utility model relates to a gasometric determination system belongs to the gaseous cubing technical field of vacuum pump, including orifice union, vacuum pump, at least two sets of orifice unions are parallelly connected to the house steward of converging, and total union coupling vacuum pump inlet that converges, orifice union include orifice plate throttling arrangement, governing valve, and the governing valve setting is equipped with the differential pressure gauge on the orifice plate throttling arrangement on orifice plate throttling arrangement and the house steward's of converging connecting line. The utility model discloses an inferior installation, the multiple metering reduces support time, improves measurement of efficiency.

Description

Gasometric determination system
Technical field
The utility model relates to a kind of gasometric determination system, belongs to vacuum pump gas volume field of measuring technique.
Background technology
In existing measuring technique standard, the tolerance measurement of vacuum pump (vacuum system) is by tolerance scope, selects one to several throttle orifice plate apparatus, changes successively from big to small.
The defect of existing measuring technique standard:
1, single throttle orifice plate apparatus measurement range is limited, and near the maxima and minima of measurement range, error is larger.When measuring at different measurement points, often can need to change another kind of throttle orifice plate apparatus, thus needing repeatedly to lift throttle orifice plate apparatus, increase non-cutting time, not reach safety, efficiently object.
2, throttle orifice plate apparatus needs to shut down replacing, and holding time is long, measures efficiency lower.
3, during same place calibration, need to shut down.
Utility model content
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is: provide a kind of gasometric determination system, one-step installation, repetitive measurement, reduces non-cutting time, improves and measures efficiency.
Gasometric determination system described in the utility model, comprise orifice union, vacuum pump, at least two group orifice unions are connected in parallel to house steward of confluxing, house steward of confluxing connects vacuum pump inlet, orifice union comprises throttle orifice plate apparatus, variable valve, variable valve is arranged on throttle orifice plate apparatus and confluxes on the connecting line of house steward, and throttle orifice plate apparatus is provided with differential pressure gauge.
Organize orifice union by parallel connection more, make up the deficiency of existing conventional single throttle orifice plate apparatus volumetric flow of gas device, significantly expand measurement range, when not shutting down replacing throttle orifice plate apparatus, the full operating range realizing a vacuum pump is measured.
Described orifice union comprises first throttle assembly, the second orifice union, and first throttle assembly comprises the first throttle orifice plate apparatus, the first variable valve, the first differential pressure gauge, and the first throttle orifice plate apparatus connects the first variable valve, and the first variable valve connects house steward of confluxing; Second orifice union comprises the second throttle orifice plate apparatus, the second variable valve, the second differential pressure gauge, and the second throttle orifice plate apparatus connects the second variable valve, and the second variable valve connects house steward of confluxing.
Described orifice union also comprises the 3rd orifice union, and the 3rd orifice union comprises the 3rd throttle orifice plate apparatus, the 3rd variable valve, the 3rd differential pressure gauge, and the 3rd throttle orifice plate apparatus connects the 3rd variable valve, and the 3rd variable valve connects house steward of confluxing.
Described throttle orifice plate apparatus comprises the front straight tube connected successively, front ring casing, rear ring casing and rear straight tube, orifice plate is arranged between front ring casing, rear ring casing, arrange pad between front ring casing and front straight tube, between rear ring casing and rear straight tube, front straight tube, rear straight tube are by bolt, nut lock.
Described confluxing between house steward and vacuum pump is provided with connecting hose and vacuum meter.
Described variable valve is electric control valve.
Measuring gases used is surrounding air, the inlet pressure of gas is environmental pressure, the top hole pressure of house steward's gas of confluxing is the inlet pressure of vacuum pump, by the density that the gas density of throttle orifice plate apparatus is surrounding air, the pressure reduction of the gas generation flowing through this throttle orifice plate apparatus is measured with differential pressure gauge, draw corresponding gas volume Q1, Q2 ... Qn, by the volumetric flow of gas of vacuum pump (vacuum system) entrance be flow through gathering tube (rise current stabilization, pressure stabilization function) gas volume sum Q (i.e. Q=Q1+Q2+ ... + Qn), convert by standard regulation again and obtain.
Compared with prior art, the beneficial effect that the utility model has is:
1, this gasometric determination system is by one-step installation, can measure multiple process conditions point, avoid frequently changing throttle orifice plate apparatus, reduces non-cutting time, improves and measures efficiency, reduce dangerous factor.
2, organize orifice union, the measurement range of extension system by parallel more, avoid the bound position of single throttle orifice plate apparatus, make measurement more accurate, true measurement data can be obtained.
3, when not shutting down replacing throttle orifice plate apparatus, the full operating range realizing a vacuum pump is measured.
4, to different throttle orifice plate apparatus, in non-stop-machine situation, mutual calibration operation can be carried out in same working point.
5, house steward of confluxing can play current stabilization, pressure stabilization function, can reduce measuring error, improves accuracy of measurement.
6, throttle orifice plate apparatus is regulated by electric control valve, by microcomputer aided testing system, make measurement convenient, reduce random, personal error, improve the degree of accuracy and accuracy measured.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is throttle orifice plate apparatus structural representation.
In figure: 1, the first throttle orifice plate apparatus; 2, the first differential pressure gauge; 3, the first variable valve; 4, to conflux house steward; 5, vacuum meter; 6, connecting hose; 7, vacuum pump; 8, the second throttle orifice plate apparatus; 9, the second differential pressure gauge; 10, the second variable valve; 11, the 3rd throttle orifice plate apparatus; 12, the 3rd differential pressure gauge; 13, the 3rd variable valve; 14, front straight tube; 15, pad; 16, front ring casing; 17, orifice plate; 18, rear ring casing; 19, rear straight tube; 20, bolt; 21, nut.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Embodiment one
As shown in Figure 1, this gasometric determination system comprises orifice union, vacuum pump 7, at least two group orifice unions are connected in parallel to house steward 4 of confluxing, first throttle assembly, the second orifice union are set in the present embodiment, first throttle assembly comprises the first throttle orifice plate apparatus 1, first variable valve 3, first differential pressure gauge 2, first throttle orifice plate apparatus 1 connects the first variable valve 3, first variable valve 3 by pipeline and connects by pipeline house steward 4, first throttle orifice plate apparatus 1 that confluxes and connect the first differential pressure gauge 2.Second orifice union comprises the second throttle orifice plate apparatus 8, second variable valve 10, second differential pressure gauge 9, second throttle orifice plate apparatus 8 connects the second variable valve 10 by pipeline, second variable valve 10 connects by pipeline house steward 4, second throttle orifice plate apparatus 8 that confluxes and connects the second differential pressure gauge 9.First variable valve 3, second variable valve 10 is electric control valve, and electric control valve adjustment is more accurate.
House steward 4 of confluxing connects vacuum pump 7 entrance by pipeline, confluxes between house steward 4 and vacuum pump 7 and is provided with connecting hose 6 and vacuum meter 5.
As shown in Figure 2, the first described throttle orifice plate apparatus 1 comprises the front straight tube 14, front ring casing 16, rear ring casing 18 and the rear straight tube 19 that connect successively, orifice plate 17 is arranged between front ring casing 16, rear ring casing 18, between front ring casing 16 and front straight tube 14, arrange pad 15 between rear ring casing 18 and rear straight tube 19, front straight tube 14, rear straight tube 19 are locked by bolt 20, nut 21.Second throttle orifice plate apparatus 8 is identical with the first throttle orifice plate apparatus 1 structure.
Embodiment two
3rd orifice union is also set in the present embodiment, the 3rd orifice union comprises the 3rd throttle orifice plate apparatus 11, the 3rd variable valve 13, the 3rd differential pressure gauge the 12, three throttle orifice plate apparatus 11 connect the 3rd variable valve the 13, three variable valve 13 and connect house steward 4 of confluxing.3rd throttle orifice plate apparatus 11 is identical with the first throttle orifice plate apparatus 1, second throttle orifice plate apparatus 8 structure.3rd variable valve 13 is electric control valve.
During work, by controlling the different opening of the first variable valve 3, second variable valve 10, the 3rd variable valve 13, simulate different vacuum technology operating modes.Air-flow enters through first throttle assembly, the second orifice union and the 3rd orifice union house steward 4 of confluxing, and takes data by different throttle orifice plate apparatus.Air-flow enters vacuum pump 7 by house steward 4 of confluxing, and house steward 4 of confluxing plays current stabilization, pressure stabilization function, reduces measuring error further.

Claims (6)

1. a gasometric determination system, comprise orifice union, vacuum pump (7), it is characterized in that: at least two group orifice unions are connected in parallel to house steward of confluxing (4), house steward (4) of confluxing connects vacuum pump (7) entrance, orifice union comprises throttle orifice plate apparatus, variable valve, variable valve is arranged on throttle orifice plate apparatus and confluxes on the connecting line of house steward (4), and throttle orifice plate apparatus is provided with differential pressure gauge.
2. gasometric determination system according to claim 1, it is characterized in that: described orifice union comprises first throttle assembly, the second orifice union, first throttle assembly comprises the first throttle orifice plate apparatus (1), the first variable valve (3), the first differential pressure gauge (2), first throttle orifice plate apparatus (1) connects the first variable valve (3), and the first variable valve (3) connects house steward (4) of confluxing; Second orifice union comprises the second throttle orifice plate apparatus (8), the second variable valve (10), the second differential pressure gauge (9), second throttle orifice plate apparatus (8) connects the second variable valve (10), and the second variable valve (10) connects house steward (4) of confluxing.
3. gasometric determination system according to claim 1, it is characterized in that: described orifice union also comprises the 3rd orifice union, 3rd orifice union comprises the 3rd throttle orifice plate apparatus (11), the 3rd variable valve (13), the 3rd differential pressure gauge (12), 3rd throttle orifice plate apparatus (11) connects the 3rd variable valve (13), and the 3rd variable valve (13) connects house steward (4) of confluxing.
4. gasometric determination system according to claim 1, it is characterized in that: described throttle orifice plate apparatus comprises the front straight tube (14) connected successively, front ring casing (16), rear ring casing (18) and rear straight tube (19), orifice plate (17) is arranged on front ring casing (16), between rear ring casing (18), between front ring casing (16) and front straight tube (14), pad (15) is set between rear ring casing (18) and rear straight tube (19), front straight tube (14), rear straight tube (19) is by bolt (20), nut (21) is locked.
5. gasometric determination system according to claim 1, is characterized in that: be provided with connecting hose (6) and vacuum meter (5) between described house steward of confluxing (4) and vacuum pump (7).
6. gasometric determination system according to claim 1, is characterized in that: described variable valve is electric control valve.
CN201521004078.7U 2015-12-04 2015-12-04 Gasometric determination system Active CN205175475U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521004078.7U CN205175475U (en) 2015-12-04 2015-12-04 Gasometric determination system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521004078.7U CN205175475U (en) 2015-12-04 2015-12-04 Gasometric determination system

Publications (1)

Publication Number Publication Date
CN205175475U true CN205175475U (en) 2016-04-20

Family

ID=55739455

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521004078.7U Active CN205175475U (en) 2015-12-04 2015-12-04 Gasometric determination system

Country Status (1)

Country Link
CN (1) CN205175475U (en)

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