CN206609484U - A kind of ultrasonic flowmeter - Google Patents

A kind of ultrasonic flowmeter Download PDF

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Publication number
CN206609484U
CN206609484U CN201720162381.2U CN201720162381U CN206609484U CN 206609484 U CN206609484 U CN 206609484U CN 201720162381 U CN201720162381 U CN 201720162381U CN 206609484 U CN206609484 U CN 206609484U
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China
Prior art keywords
mounting seat
transducer
pipeline
hole
mounting
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CN201720162381.2U
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Chinese (zh)
Inventor
方欣
李新兴
于明
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QINGDAO HIWITS METER CO Ltd
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QINGDAO HIWITS METER CO Ltd
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Abstract

The utility model discloses a kind of ultrasonic flowmeter, including pipeline section, mounting seat and transducer, the pipeline section is made up of tube wall and flange, the flange is arranged at the two ends of pipeline section, the inclined blind hole mounting hole for installing mounting seat is opened up on the tube wall, the mounting hole side removes material and connected with the endoporus of pipeline section, and the transducer is arranged in mounting seat.Transducer in the utility model is arranged on one end of mounting seat, and mounting seat need not be deep into inner tube segment, and the stability of current can be influenceed by solving the convex part being exposed in pipeline section of transducer, so that the problem of influenceing the precision that the time difference calculates.Mounting seat is prolate shape, is taken up space small, is adapted to less pipeline section diameter.Mounting seat is sealed using polytetrafluoro sealing gasket, and the service life of polytetrafluoro pad is up to decades, and sealed reliability is high, durability degree is good, solves the puzzlement of seal to be regularly replaced.

Description

A kind of ultrasonic flowmeter
Technical field
The utility model belongs to liquid fluid field of measuring techniques, and in particular to a kind of ultrasonic flowmeter.
Background technology
Ultrasonic flowmeter compared with traditional mechanical flow instrument, electromagnetic flow instrument with measuring accuracy it is high, Range ratio is bigger, is suitable for the change of the parameters such as detected fluid temperature, pressure, density, to caliber and its pipe level, vertical The strong adaptability of trend, it is easy to use, it is easy to the advantages of digital management.At present, ultrasonic flowmeter has been widely applied To field of flow measurement such as municipal heat supply, water utilities, industry, mine, power plants, technology is increasingly mature.In actual applications, to super The range ability of acoustic wave flow meter and the reliability of metering have higher demand.For range extension scope, one of side To being installation settings by changing transducer, increase transmitting and receive projection of the transducer of ultrasonic wave on pipeline section axis away from From, i.e. sound path of the increase ultrasonic wave on pipeline section axis, improves measuring accuracy of the ultrasonic flowmeter in low discharge to realize 's.
The Y of Chinese patent CN 201434706 disclose a kind of ultrasonic water meter, change for installing transducer angling hole Angle, reduce ultrasonic measurement angle and increase measurement sound path to greatest extent, improve the condition of ultrasonic measurement, effectively Improve the measurement accuracy of instrument low discharge.The U of Chinese patent CN 205785594, are mounted with two transducings in a cylinder Device, improves the security of metering.Consider from the security standpoint of metering instrument, in order to be provided with multiple transducers to substitute or It is standby, it is necessary to be set on pipeline section and multiple transducer holders and multiple transducers are installed, still, for as DN50, DN65, DN80 Deng the less caliber of diameter, transducer post space-consuming is big, does not have its installation site on pipeline section, it is virtually impossible to realize and install. Secondly, two above patent, transducer is arranged on one end of mounting seat, in order to prevent tube wall from stopping the transmission of ultrasonic wave, installs Seat needs to be deep into inner tube segment, and this is for the flowmeter of small-bore pipeline section such as DN50, DN65, DN80 bore, transducer The convex part being exposed in pipeline section can influence the stability of current, so that the precision for influenceing the time difference to calculate.In addition, mounting seat passes through platform O-ring or sealing gasket is set to seal at rank, silica gel sealing ring sealing life is 6-10, timing replacement cost in a compressed state When it is laborious.
Utility model content
The utility model is in view of the deficienciess of the prior art, there is provided a kind of ultrasonic flowmeter, improve transducer The positioning method and sealing means of mounting seat so that accurate positioning, sealing life is long, can facilitate such as DN50, DN65, Installed on the small-bore pipeline sections of DN80, both ensure that between a pair of transducers there is longer sound path, the peace of multigroup transducer can be provided again Dress.
A kind of ultrasonic flowmeter, including pipeline section, mounting seat and transducer, the pipeline section are made up of tube wall and flange, institute State the inclined blind hole mounting hole opened up on the two ends that flange is arranged at pipeline section, the tube wall for installing mounting seat, the peace Dress hole side removes material and connected with the endoporus of pipeline section, and the transducer is arranged in mounting seat.
The mounting seat is flat rectangular shape, and the mounting seat is vertically arranged according to its length direction, described to change Energy device is arranged in mounting seat successively along its length.
The mounting seat is fixed by gland to be installed in mounting hole, and the gland is detachable with pipeline section by screw Connection, is provided with polytetrafluoro sealing gasket between the gland and mounting seat.
Silica gel sealing pad is provided between the gland and pipeline section.
Blind hole mounting hole two is opened up in the mounting seat, the transducer transmitting terminal is provided with boss, and the tabletting is opened up The hole being adapted with transducer convex platform, the transducer is fixedly installed in mounting hole two by tabletting, and the tabletting passes through Screw is detachably connected with mounting seat, and sealing gasket is provided between the transducer and mounting seat.
The bottom of mounting hole two drills and string holes two is drilled in string holes one, the mounting seat, the threading hole one and threading Hole two is connected, and the lead of the transducer is drawn by threading hole one into threading hole two from mounting seat.
Ultrasonic flowmeter includes being provided with integration in the circuit box and penetration pipe for being arranged at pipe section exterior, the circuit box Circular hole is opened up in the middle part of instrument, the gland, described penetration pipe one end is arranged in circular hole, other end connection circuit box, the transducing The lead of device is drawn from mounting seat enters penetration pipe, is connected with the integrator in circuit box.
The beneficial effects of the utility model:
1. transducer is arranged on one end of mounting seat, mounting seat need not be deep into inner tube segment, solve transducer convex The part being exposed in pipeline section can influence the stability of the more small-bore current of such as DN50, DN65, DN80, so as to influence the time difference to count The problem of precision of calculation.
2. mounting seat is prolate shape, takes up space small, be adapted to less pipeline section diameter.
3. mounting seat is sealed using polytetrafluoro sealing gasket, the service life of polytetrafluoro pad is sealedly reliable up to decades Property high, durability degree it is good, solve the puzzlement of seal to be regularly replaced.
Brief description of the drawings
Fig. 1 is the embodiment overall structure diagram of the utility model one;
Fig. 2 is installation portions partial sectional view in Fig. 1;
Fig. 3 is the embodiment vertical view cutaway drawing of the utility model one;
Fig. 4 is mounting seat partial enlarged view in Fig. 3;
Fig. 5 is the embodiment transducer mounting seat of the utility model one and fastener explosive view.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical solution of the utility model is described further.
A kind of ultrasonic flowmeter, as shown in Figure 1, 2, including pipeline section 1, mounting seat 2 and transducer 3, the pipeline section 1 is by pipe Wall 12 and flange 7 are constituted, and the flange 7 is arranged at the two ends of pipeline section 1, as shown in figure 3, being opened up on the tube wall 12 for installing The inclined blind hole mounting hole 11 of mounting seat 2, the mounting hole 11 removes material and connected with the endoporus of pipeline section 1 sideways, described to change Energy device 3 is arranged in mounting seat 2.
The present embodiment is provided with two pairs of mounting seat 2 and (can set according to the need for the diameter and actual conditions of pipeline section 1 Put multipair), because the side of mounting hole 11 is connected with the endoporus of pipeline section 1, transducer 3 is arranged on mounting seat 2 and ultrasound can be achieved sideways The transmitting and reception of ripple, the bottom of mounting seat 2 need not be deep into inside pipeline section 1, solve transducer 3 in the prior art and peace The convex part being exposed in pipeline section of dress seat 2 can influence the stability of current, so that the problem of influenceing the precision that the time difference calculates.Especially phase For the more small-bore pipeline section of such as DN50, DN65, DN80, convex dew part occupies larger space proportion (such as, exposed portion For 10mm, two transducers expose 20mm, account for 40% diameter of DN50 bores) so that measurement range reduces, in convex dew part It is also easy to form flow-disturbing, influences measuring accuracy.
The mounting seat 2 is flat rectangular shape, and mounting seat 2 is vertically arranged according to its length direction, such as Fig. 2 institutes Show, transducer 3 is arranged in mounting seat 2 successively along its length, transducer 3 is provided with 2 altogether in the present embodiment, according to reality Need and pipeline section 1 diameter, can also set multiple, in the case where certain is damaged transducer, others can be after It is continuous to use, and this multichannel structure can also improve the degree of accuracy of data acquisition.
Mounting seat is cylinder in the prior art, and for less pipeline section diameter, such as DN50, DN65, DN80 install empty Between it is narrow and small be difficult to, need to increase the diameter of mounting seat and mounting hole when increasing numbers of transducers, take up space very big.This Utility model mounting seat 2 is flat cuboid, is taken up space small, and increase is only needed to when needing increase by 3 quantity of transducer The length of mounting seat 2, is adapted to less pipeline section diameter, such as DN50, DN65, DN80, for larger pipeline section diameter, then More transducers can be set.
The mounting seat 2 is fixed by gland 201 to be installed in mounting hole 11, and the gland 201 passes through screw 203 It is detachably connected with pipeline section 1, polytetrafluoro sealing gasket 202 is provided between the gland 201 and mounting seat 2, as shown in figure 4, peace The end face for filling seat 2 is concordant with the end face of mounting hole 11, and polytetrafluoro sealing gasket 202 is pressed together on the end concordant with mounting hole 11 of mounting seat 2 Sealed on the annulus in face.In the prior art, seal many using one of silica gel sealing, due to silica gel service life compared with It is short, especially it will often be changed using 6 years in the sealing of heat supplying pipeline silica gel ring.Unlike the prior art, pacify in the utility model Dress seat 2 is sealed using polytetrafluoro sealing gasket 202.The service life of polytetrafluoro pad is up to decades, and sealed reliability is high, durable Spend, solve the puzzlement of seal to be regularly replaced.
As shown in figure 5, being provided with silica gel sealing pad 204 between the gland 201 and pipeline section 1.
As shown in figure 5, opening up blind hole mounting hole 2 211 in the mounting seat 2, the transmitting terminal of transducer 3 is provided with convex Platform, the tabletting 213 opens up the hole being adapted with the convex platform of transducer 3, and transducer 3 is fixedly installed in installation by tabletting 213 In hole 2 211, the tabletting 213 is detachably connected by screw 214 with mounting seat 2, between the transducer 3 and mounting seat 2 It is provided with sealing gasket 212.
As shown in figure 5, the bottom of mounting hole 2 211 drills and string holes 2 216, institute is drilled in string holes 1, mounting seat 2 Threading hole 1 is stated to connect with threading hole 2 216, the lead of transducer 3 by threading hole 1 enter threading hole 2 216 from Drawn in mounting seat 2.
On the basis of such scheme, as shown in figure 1, multichannel ultrasonic flow meter includes being arranged at outside pipeline section 1 Integrator is provided with circuit box 6 and penetration pipe 5, the circuit box 6, as shown in figure 5, the middle part of the gland 201 opens up circular hole 206, described one end of penetration pipe 5 is arranged in circular hole 206, other end connection circuit box 6, and the lead of the transducer 3 is from installation Drawn in seat 2 and enter penetration pipe 5, be connected with the integrator in circuit box 6.
It will be appreciated that embodiment of the present utility model while there has been shown and described that, for the common skill of this area For art personnel, it is possible to understand that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit A variety of change, modification, replacement and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of ultrasonic flowmeter, including pipeline section (1), mounting seat (2) and transducer (3), the pipeline section (1) is by tube wall (12) Constituted with flange (7), the flange (7) is arranged at the two ends of pipeline section (1), it is characterised in that open up use on the tube wall (12) In the inclined blind hole mounting hole (11) for installing mounting seat (2), mounting hole (11) side removal material is interior with pipeline section (1) Hole is connected, and the transducer (3) is arranged in mounting seat (2).
2. ultrasonic flowmeter as claimed in claim 1, it is characterised in that the mounting seat (2) is flat cuboid Shape, the mounting seat (2) is vertically arranged according to its length direction, and the transducer (3) is arranged in installation successively along its length In seat (2).
3. ultrasonic flowmeter as claimed in claim 1, it is characterised in that the mounting seat (2) is compressed by gland (201) It is fixedly installed in mounting hole (11), the gland (201) is detachably connected by screw (203) with pipeline section (1), the gland (201) polytetrafluoro sealing gasket (202) is provided between mounting seat (2).
4. ultrasonic flowmeter as claimed in claim 3, it is characterised in that set between the gland (201) and pipeline section (1) There is silica gel sealing pad (204).
5. ultrasonic flowmeter as claimed in claim 1, it is characterised in that open up blind hole mounting hole on the mounting seat (2) Two (211), transducer (3) transmitting terminal is provided with boss, and tabletting (213) is opened up to be adapted with transducer (3) convex platform Hole, the transducer (3) is fixedly installed in mounting hole two (211) by tabletting (213), and the tabletting (213) passes through screw (214) it is detachably connected with mounting seat (2), sealing gasket (212) is provided between the transducer (3) and mounting seat (2).
6. ultrasonic flowmeter as claimed in claim 5, it is characterised in that described (211) bottom of mounting hole two drills string holes String holes two (216) is drilled on one (215), the mounting seat (2), the threading hole one (215) connects with threading hole two (216), The lead of the transducer (3) enters threading hole two (216) by threading hole one (215) and drawn from mounting seat (2).
7. ultrasonic flowmeter as claimed in claim 6, it is characterised in that the circuit box outside including being arranged at pipeline section (1) (6) and penetration pipe (5), it is provided with the circuit box (6) in the middle part of integrator, gland (201) and opens up circular hole (206), it is described to wear Spool (5) one end is arranged in circular hole (206), other end connection circuit box (6), and the lead of the transducer (3) is from mounting seat (2) drawn in and enter penetration pipe (5), be connected with the integrator in circuit box (6).
CN201720162381.2U 2017-02-23 2017-02-23 A kind of ultrasonic flowmeter Active CN206609484U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720162381.2U CN206609484U (en) 2017-02-23 2017-02-23 A kind of ultrasonic flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720162381.2U CN206609484U (en) 2017-02-23 2017-02-23 A kind of ultrasonic flowmeter

Publications (1)

Publication Number Publication Date
CN206609484U true CN206609484U (en) 2017-11-03

Family

ID=60169220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720162381.2U Active CN206609484U (en) 2017-02-23 2017-02-23 A kind of ultrasonic flowmeter

Country Status (1)

Country Link
CN (1) CN206609484U (en)

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