CN203069215U - Concentric tiny orifice plate flowmeter - Google Patents
Concentric tiny orifice plate flowmeter Download PDFInfo
- Publication number
- CN203069215U CN203069215U CN 201220726531 CN201220726531U CN203069215U CN 203069215 U CN203069215 U CN 203069215U CN 201220726531 CN201220726531 CN 201220726531 CN 201220726531 U CN201220726531 U CN 201220726531U CN 203069215 U CN203069215 U CN 203069215U
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- CN
- China
- Prior art keywords
- negative pressure
- hole
- concentric
- platen press
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a concentric tiny orifice plate flowmeter which comprises a positive pressure-measuring flange and a negative pressure-measuring flange. The lower end portion of the positive pressure-measuring flange and the lower end portion of the negative pressure-measuring flange are fixedly connected through a fastener. Channels which allows liquid to pass through are formed in the positive pressure-measuring flange and the negative pressure-measuring flange. The positive pressure-measuring flange is perpendicularly provided with a positive pressure-measuring pipe. The positive pressure-measuring pipe is communicated with the channels. The negative pressure-measuring flange is perpendicularly provided with a negative pressure-measuring pipe. The negative pressure-measuring pipe is communicated with the channels. A concentric tiny orifice plate is tightly connected with the positive pressure-measuring flange and the negative pressure-measuring flange. A through hole, a small end portion and a taper hole which is communicated with the through hole are formed in the concentric tiny orifice plate. The centre lines of the through hole, the taper hole and the channels coincide, the ratio of range is wide, accuracy is high, and the concentric tiny orifice plate flowmeter is free from influence of vibration, convenient to dismantle and free of maintaining.
Description
Technical field
The utility model relates to the measuring appliance of fluid flow, particularly a kind of concentric orifice flowmeter.
Background technology
Flow measurement and Human's production activity, scientific experimentation and daily life have close relationship, and particularly in the current era of paying attention to product quality, energy savings, business accounting and the performance of enterprises, it is even more important that flow measurement just seems.Various fluid media (medium)s all are important energy or contain energy working medium as oil, coal gas, rock gas, Device in Gas, water, steam etc., only accomplish the accurate calculating to them, just can accomplish " power consumption has several, energy-conservation certificates that have ".Wherein, throttle orifice plate apparatus is a kind of differential pressure type flowmeter, the device that produces differential pressure is that restriction device is standard orifice plate, orifice plate in the fluid that is full of pipeline is flowed through pipeline, a fluid stream will form local contraction in orifice plate, thereby flow velocity is increased, pressure reduces, the bathroom has produced static pressure before and after orifice plate, flow rate of fluid is more big, the differential pressure that produces before and after orifice plate is also more big, the flow of fluid is directly proportional with the square root of the generation that the orifice plate front and back produce, by the flow that measures fluid to differential pressure, yet existing throttle orifice plate apparatus exists: inconvenience is installed, measuring accuracy is not high, stability is good inadequately, range is narrow, be subjected to defectives such as vibration effect is more serious.
The utility model content
The purpose of this utility model is to overcome the defective that exists in the prior art, and a kind of concentric orifice flowmeter is provided, and range ratio is wide, precision is high, good stability, be not subjected to vibration effect, convenient disassembly, non-maintaining.
For achieving the above object, the technical solution of the utility model has provided a kind of concentric orifice flowmeter, comprise the blue and negative pressure flange of the platen press of officiallying enroll, the bottom of the described platen press orchid of officiallying enroll and the bottom of described negative pressure flange are fixedly connected by securing member, all offer the passage that passes through for fluid on described officially enroll platen press orchid and the described negative pressure flange, be vertically installed with the pressure pipe of officiallying enroll on the described platen press orchid of officiallying enroll, the described pressure pipe of officiallying enroll is connected with described passage, be vertically installed with negative pressure pipe on the described negative pressure flange, described negative pressure pipe is connected with described passage, described officiallying enroll closely is connected with concentric orifice between platen press orchid and the described negative pressure flange, offer through hole on the described concentric orifice, the bellmouth that small end is connected with described through hole, described through hole, described bellmouth, described passage three's center line coincides.
As preferably, the degree of depth of described through hole is less than the degree of depth of described bellmouth.
As preferably, described through hole is circular hole, and described bellmouth is conical bore.
As preferably, all offer two locating slots on the described platen press orchid of officiallying enroll, the described negative pressure flange, two described locating slots are positioned at the both sides of described passage, correspondingly be provided with two positioning convex on the described concentric orifice, described positioning convex is inserted in the corresponding described locating slot.
As preferably, offer threaded hole on the described negative pressure flange, be provided with puller bolt in the described threaded hole, the end face of the end of described puller bolt and the described platen press orchid of officiallying enroll is inconsistent.
As preferably, described puller bolt is positioned at the top of described passage.
Advantage of the present utility model and beneficial effect are: owing in concentric orifice and the special seal design that platen press is blue and negative pressure flange adopts of officiallying enroll, have the unique advantage that need not sealing gasket and the automatic centering heart is installed.Mount and dismount for ease of orifice plate, be provided with puller bolt at negative pressure flange, whole flowmeter does not have internal electronic component and does not have movable member, therefore be subjected to the influence of on-the-spot electromagnetic interference (EMI) less, and the influence of not vibrated, the error effect that flowmeter is brought by variable density is less, and measuring accuracy is higher.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Among the figure: 1, the platen press orchid of officiallying enroll; 2, negative pressure flange; 3, securing member; 4, passage; 5, the pressure pipe of officiallying enroll; 6, negative pressure pipe; 7, concentric orifice; 8, through hole; 9, bellmouth; 10, locating slot; 11, positioning convex; 12, puller bolt.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of concentric orifice 7 flowmeters, comprise officially enroll platen press blue 1 and negative pressure flange 2, the bottom of the described platen press orchid 1 of officiallying enroll and the bottom of described negative pressure flange 2 are fixedly connected by securing member 3, all offer the passage 4 that passes through for fluid on described officially enroll platen press blue 1 and the described negative pressure flange 2, be vertically installed with the pressure pipe 5 of officiallying enroll on the described platen press orchid 1 of officiallying enroll, the described pressure pipe 5 of officiallying enroll is connected with described passage 4, be vertically installed with negative pressure pipe 6 on the described negative pressure flange 2, described negative pressure pipe 6 is connected with described passage 4, described officiallying enroll closely is connected with concentric orifice 7 between platen press blue 1 and the described negative pressure flange 2, offer through hole 8 on the described concentric orifice 7, the bellmouth 9 that small end is connected with described through hole 8, described through hole 8, described bellmouth 9, described passage 4 threes' center line coincides.
As shown in Figure 1, the degree of depth of described through hole 8 is less than the degree of depth of described bellmouth 9.Described through hole 8 is circular hole, and described bellmouth 9 is conical bore.
As shown in Figure 1, all offer two locating slots 10 on the described platen press orchid 1 of officiallying enroll, the described negative pressure flange 2, two described locating slots 10 are positioned at the both sides of described passage 4, correspondingly be provided with two positioning convex 11 on the described concentric orifice 7, described positioning convex 11 is inserted in the corresponding described locating slot 10.Has the advantage that need not sealing gasket and the automatic centering heart of installing.
As shown in Figure 1, offer threaded hole on the described negative pressure flange 2, be provided with puller bolt 12 in the described threaded hole, the end face of the end of described puller bolt 12 and the described platen press orchid 1 of officiallying enroll is inconsistent.Be convenient to the orifice plate installation and removal.As shown in Figure 1, described puller bolt 12 is positioned at the top of described passage 4.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. concentric orifice flowmeter, it is characterized in that: comprise the blue and negative pressure flange of the platen press of officiallying enroll, the bottom of the described platen press orchid of officiallying enroll and the bottom of described negative pressure flange are fixedly connected by securing member, all offer the passage that passes through for fluid on described officially enroll platen press orchid and the described negative pressure flange, be vertically installed with the pressure pipe of officiallying enroll on the described platen press orchid of officiallying enroll, the described pressure pipe of officiallying enroll is connected with described passage, be vertically installed with negative pressure pipe on the described negative pressure flange, described negative pressure pipe is connected with described passage, described officiallying enroll closely is connected with concentric orifice between platen press orchid and the described negative pressure flange, offer through hole on the described concentric orifice, the bellmouth that small end is connected with described through hole, described through hole, described bellmouth, described passage three's center line coincides.
2. concentric orifice flowmeter as claimed in claim 1, it is characterized in that: the degree of depth of described through hole is less than the degree of depth of described bellmouth.
3. concentric orifice flowmeter as claimed in claim 1, it is characterized in that: described through hole is circular hole, described bellmouth is conical bore.
4. concentric orifice flowmeter as claimed in claim 1, it is characterized in that: all offer two locating slots on the described platen press orchid of officiallying enroll, the described negative pressure flange, two described locating slots are positioned at the both sides of described passage, correspondingly be provided with two positioning convex on the described concentric orifice, described positioning convex is inserted in the corresponding described locating slot.
5. concentric orifice flowmeter as claimed in claim 1, it is characterized in that: offer threaded hole on the described negative pressure flange, be provided with puller bolt in the described threaded hole, the end face of the end of described puller bolt and the described platen press orchid of officiallying enroll is inconsistent.
6. concentric orifice flowmeter as claimed in claim 5, it is characterized in that: described puller bolt is positioned at the top of described passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726531 CN203069215U (en) | 2012-12-26 | 2012-12-26 | Concentric tiny orifice plate flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220726531 CN203069215U (en) | 2012-12-26 | 2012-12-26 | Concentric tiny orifice plate flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069215U true CN203069215U (en) | 2013-07-17 |
Family
ID=48767992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220726531 Expired - Fee Related CN203069215U (en) | 2012-12-26 | 2012-12-26 | Concentric tiny orifice plate flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203069215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595789A (en) * | 2016-12-29 | 2017-04-26 | 广汉川亿石油科技有限公司 | Critical speed flowmeter and pipeline system |
-
2012
- 2012-12-26 CN CN 201220726531 patent/CN203069215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595789A (en) * | 2016-12-29 | 2017-04-26 | 广汉川亿石油科技有限公司 | Critical speed flowmeter and pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20171226 |