CN102788617B - A kind of enclosed type ultrasonic water meter and heat energy meter - Google Patents

A kind of enclosed type ultrasonic water meter and heat energy meter Download PDF

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Publication number
CN102788617B
CN102788617B CN201210248577.5A CN201210248577A CN102788617B CN 102788617 B CN102788617 B CN 102788617B CN 201210248577 A CN201210248577 A CN 201210248577A CN 102788617 B CN102788617 B CN 102788617B
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China
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tube
heat energy
seal box
siphunculus
electronic seal
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CN201210248577.5A
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Chinese (zh)
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CN102788617A (en
Inventor
姚宇
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湖南常德牌水表制造有限公司
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Abstract

nullA kind of enclosed type ultrasonic water meter and heat energy meter,It is that watchcase (1) is made class U is tubular,Laterally it is made with through transverse tube with water inlet pipe and water outlet pipe direction side by side in the bottom of its U-tube,It has been inserted into pitot tube (28) at through transverse tube,Ultrasonic transducer assembly is loaded at the two ends of its transverse tube,Level electrode assembly is loaded in the side siphunculus of transverse tube,Lateral surface at transverse tube fixes one or more groups semiconductor temperature differential generating sheet (26),And post radiator (27) thereon,Then with watchcase cover (2) and following table clamshell, the signal measurement base table made above is closed,Control circuit board (13) and supplying cell (7) are fixed in the electronic seal box (5) of opening,On the opening edge of electronic seal box (5) equipped with flute profile sealing ring (6),And control circuit board (13) and supplying cell (7) are entirely sealed in electronic seal box (5) under the compressing of screw with the top pressure closure (8) having wedge stile.

Description

A kind of enclosed type ultrasonic water meter and heat energy meter

Technical field:

The invention belongs to main water metering instrument and thermal metering instrument, relate in particular to a kind of enclosed type ultrasonic water meter and heat energy meter.

Background technology:

It is presently used for water meter and the heat energy meter in various place, is generally adopted water jet propulsion impeller and carries out the mode of mechanical rotation and the mode of ultrasonic measurement water velocity.The employing mechanical system that water meter is more, the mode of heat energy meter then more employing ultrasound water velocities.There is the problems such as abrasion due to rotatable parts such as its impellers in mechanical system, its service life is comparatively very brief.And the mode of ultrasonic measurement water velocity exists for the advantages such as life-span length.

It is currently used for the mode of the ultrasonic measurement water velocity of water meter and heat energy meter, it is divided into again ultrasound wave direct-injection type and reflective, one or two reflecting surface need to be fixed on hyperacoustic path due to reflective, these reflectings surface are highly susceptible to pollute and reduce reflectance, so commonplace is that the mode adopting direct projection is to do ultrasonic water meter and heat energy meter.

And adopt the water meter and heat energy meter that the hyperacoustic mode of direct projection makes at present, major part all adopts and ultrasonic transducer is loaded on pitot tube both sides, so hyperacoustic propagation path then just has certain angle with the flow path of water, ultrasound wave is just had effect by the component that the impact of current is just only identical with ultrasonic propagation direction, thus reducing ultrasound wave by the amplitude of water currents, say, that this mode reduces the accuracy and sensitivity of ultrasonic measurement water velocity.

Additionally, current ultrasonic water meter and heat energy meter, the nominal bore of bore and this table of the current pitot tubes that great majority adopt is essentially identical, so that the flow velocity that water is in current pitot tube can not get improving, is also reduce it to one of reason of water flow speed measurement accuracy and sensitivity.Simultaneously as current pitot tube great majority are all adopt metal material processing to become, surface is comparatively coarse, and the uniformity of water flowing is also had a certain impact.

Also have and be exactly, great majority adopt the transducer fixed cover that metal or plastics are made fix and seal ultrasound piezoelectric potsherd at present, and these transducer fixed covers can not effectively prevent its surface scaling and the rust deposite gathering in water, so transducer face is easy to fouling and loses normal propagation and receive hyperacoustic effect.

Another one is exactly, and the holding wire connecting ultrasonic transducer and temperature transducer of current most ultrasonic water meter and heat energy meter is all exposed to outside watchcase, thus being easy to artificially or unexpectedly be destroyed so that it is lose normal function of measuring.

The present invention provides a solution, it can use that measuring accuracy and the sensitivity of the water meter made of ultrasound wave and heat energy meter are improved, and the outer surface of its transducer will not scaling and gather rust deposite, the holding wire being simultaneously connected with ultrasonic transducer and temperature transducer is closed in watchcase cover, thus its holding wire will not be subject to when not destroying watchcase cover artificial or destroy unexpectedly.

Summary of the invention:

The present invention is achieved in that it is that watchcase is made class U is tubular, is made with water inlet pipe and water outlet pipe in the top horizontal direction of its U-tube;Laterally it is made with through transverse tube with water inlet pipe and water outlet pipe direction side by side in the bottom of its U-tube, and it is made with female thread at its two ends, it is made with side siphunculus with at its transverse tube wall, and it is made with female thread at this side siphunculus tail end, vertical tube side outer wall at its U-tube is made with side siphunculus, is also made with female thread at this side siphunculus tail end.Through transverse tube at U-tube has been inserted into pitot tube, and the internal diameter of pitot tube is less than the bore imported and exported, and the sidewall of pitot tube is also made with side opening, and this side opening is directed at the side siphunculus endoporus on horizontal siphunculus.Load ultrasonic transducer assembly at the two ends of the transverse tube of U-tube and compressed with transducer clamp nut, ultrasonic transducer assembly is then load in transducer fixed cover by ultrasound piezoelectric potsherd, the electrode thin wire of ultrasound piezoelectric potsherd is connected with signal line plate, signal line plate is connected with ultrasonic signal line again, then is undertaken solidifying sealing by the space of transducer fixed cover inner tail end with firming agent such as epoxy resin;And transducer fixed cover is the interior sky made with politef, and within it wall is made with concavo-convex step or female thread.Side siphunculus at the vertical tube side outer wall of U-tube is inserted into and is fixed with temperature transducer hermetically.In the side siphunculus of the through transverse tube of U-tube, load level electrode assembly and compress with clamp nut and seal, its level electrode assembly is to make electrode shell with nonmetal, and within it equipped with one or more pairs of conductive electrodes, conductive electrode is connected with electrode signal line, then is undertaken solidifying sealing by the space of afterbody in it with epoxy resin.Lateral surface at the through transverse tube of U-tube fixes one or more groups semiconductor temperature differential generating sheet, simultaneously at the sealing ring disposed about of this semiconductor temperature differential generating sheet, and posts one or more groups radiator at the huyashi-chuuka (cold chinese-style noodles) of semiconductor temperature differential generating sheet.Then with watchcase cover and following table clamshell, the signal measurement base table (except the radiator of radiator) made above is closely wrapped up, and watchcase cover and following table clamshell are all made with multiple heat radiation steam vent on it, with the circular siphunculus being made with male step at upper watchcase cover end face, and this circle siphunculus is cut into many lobes, and wherein a lobe is made with rotary stopper platform.Control circuit board and supplying cell are fixed in the electronic seal box of opening, inside recess is arranged at the bottom of this electronic seal box, and having inner groovy in this pit, rotary stopper platform is arranged at the bottom by electronic seal box in pit, it is made with holding wire turnover aperture in the bottom of pit.On the opening edge of electronic seal box equipped with flute profile sealing ring, control circuit board and supplying cell are entirely sealed in electronic seal box by this flute profile sealing ring top pressure closure having wedge stile under the compressing of screw.

During use, after current enter from the import of watchcase, vertical tube further along U-tube enters the through transverse tube in bottom, subsequently into pitot tube, owing to the internal diameter of pitot tube is less than the bore of the import and export of watchcase, so water flow velocity all will improve a lot, and it is fixed on the ultrasonic transducer assembly at through transverse tube two ends just to the axis at pitot tube, so hyperacoustic propagation time difference measured by ultrasonic water meter and heat energy meter can be made to be greatly increased, so that its measuring accuracy and sensitivity are greatly improved.

The transducer fixed cover polytetrafluoroethylmaterial material of ultrasonic transducer assembly is made, it is primarily to and prevents scaling and gather rust deposite thereon, because this material of politef due to very fine and smooth without piling scaliness and rust deposite so that the normal service life of its water meter made and heat energy meter is greatly prolonged;In its transducer fixed cover, do irregular step or female thread, be primarily in it firming agent such as injection ring epoxy resins and after solidifying, improve the adhesion of firming agent and its transducer fixed cover.Insert at the vertical tube place of the U-tube of watchcase temperature transducer in order that measure in real time the temperature of the current flowing through heat energy meter, in order to calculate the thermal energy that user uses.The side siphunculus of the through transverse tube bottom the U-tube of watchcase is inserted into level electrode assembly two purposes: one, fixing pitot tube so that it is will not be promoted under streamflow regime at a high speed and shift;Its two, exposed electrode in pitot tube is the state being mutually not turned on when anhydrous state;And when being full of water in pitot tube, the state of mutual conduction between electrode, will be become by water, by the two state, control circuit board just can judge whether this water meter or heat energy meter are in normal installation water flowing state.The purpose of the fixing semiconductor temperature difference sheet in the outside of the transverse tube bottom U-tube, is that the heat energy that the hot water utilizing Bottomhole pressure is transmitted by watchcase generates electricity, and supplying cell is charged;It is to make the heat of its huyashi-chuuka (cold chinese-style noodles) drain as early as possible that huyashi-chuuka (cold chinese-style noodles) at semiconductor temperature differential generating sheet posts the reason of radiator, and makes its temperature difference on cold and hot two sides as far as possible big, finally makes its electromotive force sent big and output generated output as far as possible also as far as possible big.The purpose being closed with watchcase cover and following table clamshell by signal measurement base table, is allow all holding wires all be no longer exposed to outer and easily artificially or unexpectedly to be damaged.The reason being made with heat radiation steam vent at upper watchcase cover and following table clamshell is to allow the heat that signal measurement base table sends drain as early as possible, without the supplying cell being fixed in electronic seal box and control circuit board are caused deleterious effect;The circular siphunculus of male step it is made with at upper watchcase cover end face, and the purpose that this circle siphunculus is cut into many lobes is to coordinate with the electronic seal box of fixing supplying cell and control circuit board, and make electronic seal box can rotate around the circular siphunculus on upper watchcase cover end face;Upper watchcase cover end face is cut on the circular siphunculus of many lobes and wherein a lobe is made with rotary stopper platform, be to make electronic seal box when rotating not over 360 degree, from without making electronic seal box there is multiple rotations and make wire size line be twisted disconnected.The purpose of wire size line turnover aperture it is made with, when being allow holding wire turnover electronic seal box, it is easy to accomplish sealing completely isolated with the external world in the bottom of electronic seal box pit.Flute profile sealing ring is put in the opening of electronic seal box along and with there being the top pressure closure of wedge stile, by screw, electronic seal box is made a seal box being isolated from the outside completely; supplying cell is made no longer to have any connection with the external world with control circuit board, so that supplying cell and control circuit board are well protected.

Accompanying drawing illustrates:

Fig. 1 is the main pseudosection of the present invention

Fig. 2 is the main pseudosection of signal measurement base table

Fig. 3 is the main pseudosection of watchcase

Fig. 4 is the main pseudosection of level electrode assembly

Fig. 5 is the main pseudosection of electrode shell

Fig. 6 is the top view of Fig. 5

Fig. 7 is the main pseudosection of ultrasonic transducer assembly

Fig. 8 is the main pseudosection of transducer fixed cover

Fig. 9 is the top view of Fig. 8

Figure 10 is the main pseudosection of upper watchcase cover

Figure 11 is the top view of Figure 10

Figure 12 is the main pseudosection of electronic seal box

Figure 13 is the top view of Figure 12

Figure 14 is the front view of flute profile sealing ring

Figure 15 is the top plan view of Figure 14

Figure 16 is the main pseudosection of the top pressure closure having wedge stile

Figure 17 is the top view of Figure 16

Figure 18 is the main pseudosection of pitot tube

Figure 19 is the top view of Figure 18

In figure: 1, watchcase;2, upper watchcase cover;3, lead sealing line;4, lead sealing grain;5, electronic seal box;6, flute profile sealing ring;7, supplying cell;8, there is the top pressure closure of wedge stile;9, conductive electrode;10, electrode signal line;11, electrode assembling packing ring;12, clamp nut;13, control circuit board;14, electrode shell;15, temperature measurement signal line;16, level electrode assembly sealing ring;17, temperature transducer;18, temperature transducer sealing ring;19, transducer clamp nut;20, ultrasonic signal line;21, firming agent;22, signal line plate;23, ultrasound piezoelectric potsherd;24, transducer fixed cover;25, sealing ring;26, semiconductor temperature differential generating sheet;27, radiator;28, pitot tube.

Detailed description of the invention:

The present invention is achieved in that it is that watchcase (1) is made class U is tubular, is made with water inlet pipe and water outlet pipe in the top horizontal direction of its U-tube;Laterally it is made with through transverse tube with water inlet pipe and water outlet pipe direction side by side in the bottom of its U-tube, and it is made with female thread at its two ends, it is made with side siphunculus at its transverse tube wall, and it is made with female thread at this side siphunculus tail end, vertical tube side outer wall at its U-tube is made with side siphunculus, is also made with female thread at this side siphunculus tail end.Through transverse tube at U-tube has been inserted into pitot tube (28), the internal diameter of pitot tube (28) is less than the bore imported and exported, and the sidewall of pitot tube (28) is also made with side opening, and this side opening is directed at the side siphunculus endoporus on horizontal siphunculus.Load ultrasonic transducer assembly at the two ends of the transverse tube of U-tube and compressed with transducer clamp nut (19), ultrasonic transducer assembly is then load in transducer fixed cover (24) by ultrasound piezoelectric potsherd (23), the electrode thin wire of ultrasound piezoelectric potsherd (23) is connected with signal line plate (22), signal line plate (22) is connected with ultrasonic signal line (20) again, then is undertaken solidifying sealing by the space of transducer fixed cover (24) inner tail end with the firming agent such as epoxy resin (21);And transducer fixed cover (24) is the interior sky made with politef, and within it wall is made with concavo-convex step or female thread.Side siphunculus at the vertical tube side outer wall of U-tube is inserted into and is fixed with hermetically temperature transducer (17).In the side siphunculus of the through transverse tube of U-tube, load level electrode assembly and compress with clamp nut (12) and seal, its level electrode assembly is to make electrode shell (14) with nonmetal, and within it equipped with one or more pairs of conductive electrodes (9), conductive electrode (9) is connected with electrode signal line (10), then is undertaken solidifying sealing by the space of afterbody in it with epoxy resin.Lateral surface at the through transverse tube of U-tube fixes one or more groups semiconductor temperature differential generating sheet (26), simultaneously at the sealing ring disposed about (25) of this semiconductor temperature differential generating sheet (26), and post one or more groups radiator (27) at the huyashi-chuuka (cold chinese-style noodles) of semiconductor temperature differential generating sheet (26).Then with watchcase cover (2) and following table clamshell, the signal measurement base table (except the radiator of radiator) made above is closely wrapped up, and watchcase cover (2) and following table clamshell are all made with multiple heat radiation steam vent on it, with the circular siphunculus being made with male step at upper watchcase cover (2) end face, and this circle siphunculus is cut into many lobes, and wherein a lobe is made with rotary stopper platform.Control circuit board (13) and supplying cell (7) are fixed in the electronic seal box (5) of opening, inside recess is arranged at the bottom of this electronic seal box (5), and have in this pit and have inner groovy, in pit, rotary stopper platform is arranged at the bottom by electronic seal box (5), is made with holding wire turnover aperture in the bottom of pit.On the opening edge of electronic seal box (5) equipped with flute profile sealing ring (6), this flute profile sealing ring (6) is with there being the top pressure closure (8) of wedge stile control circuit board (13) and supplying cell (7) to be entirely sealed in electronic seal box (5) under the compressing of screw.

During use, after current enter from the import of watchcase (1), vertical tube further along U-tube enters the through transverse tube in bottom, subsequently into pitot tube (28), owing to the internal diameter of pitot tube (28) is less than the bore of the import and export of watchcase (1), so water velocity will improve a lot, and it is fixed on the ultrasonic transducer assembly at through transverse tube two ends just to the axis at pitot tube, so hyperacoustic propagation time difference measured by ultrasonic water meter and heat energy meter can be made to be greatly increased, so that its measuring accuracy and sensitivity are greatly improved.

The transducer fixed cover (24) of ultrasonic transducer assembly is made with polytetrafluoroethylmaterial material, it is primarily to and prevents scaling and gather rust deposite, because this material of politef due to very fine and smooth without piling scaliness and rust deposite so that the normal service life of its water meter made and heat energy meter is greatly prolonged;Irregular step or female thread is done in its transducer fixed cover (24), after being primarily in it firming agent (21) such as injection ring epoxy resins and solidifying, improve the adhesion of firming agent (21) and its transducer fixed cover (24).Insert at the vertical tube place of the U-tube of watchcase temperature transducer (17) in order that measure in real time the temperature of the current flowing through heat energy meter, in order to calculate the thermal energy that user uses.The side siphunculus of the through transverse tube bottom the U-tube of watchcase (1) is inserted into level electrode assembly two purposes: one, fixing pitot tube (28) so that it is will not be promoted under streamflow regime at a high speed and shift;Its two, exposed electrode in pitot tube (28) is the state being mutually not turned on when anhydrous state;And when being full of water in pitot tube (28), will be become the state of mutual conduction between electrode by water, by the two state, control circuit board (13) just can judge whether this water meter or heat energy meter are in normal installation water flowing state.The purpose of the fixing semiconductor temperature difference sheet (26) in the outside of the transverse tube bottom U-tube, is that the heat energy that the hot water utilizing Bottomhole pressure is transmitted by watchcase (1) generates electricity, and supplying cell (7) is charged;It is to make the heat of its huyashi-chuuka (cold chinese-style noodles) drain as early as possible that huyashi-chuuka (cold chinese-style noodles) at semiconductor temperature differential generating sheet (26) posts the reason of radiator (27), and make its temperature difference on cold and hot two sides as far as possible big, finally make its electromotive force sent big and output generated output as far as possible also as far as possible big.The purpose being closed with watchcase cover (2) and following table clamshell by signal measurement base table, is allow all holding wires all be no longer exposed to outer and easily artificially or unexpectedly to be damaged.The reason being made with heat radiation steam vent upper watchcase cover (2) and following table clamshell is to allow the heat that signal measurement base table sends drain as early as possible, without the supplying cell (7) being fixed in electronic seal box (5) and control circuit board (13) are caused deleterious effect;The circular siphunculus of male step it is made with at upper watchcase cover (2) end face, and the purpose that this circle siphunculus is cut into many lobes is to coordinate with the electronic seal box (5) of fixing supplying cell (7) and control circuit board (13), and make electronic seal box (5) can rotate around the circular siphunculus on upper watchcase cover end face;Upper watchcase cover (2) end face is cut on the circular siphunculus of many lobes and wherein a lobe is made with rotary stopper platform, be in order to electronic seal box rotate time not over 360 degree, from without making electronic seal box (5) there is multiple rotations and make wire size line be twisted disconnected.The purpose of wire size line turnover aperture it is made with, when being allow holding wire turnover electronic seal box (5), it is easy to accomplish sealing completely isolated with the external world in the bottom of electronic seal box (5) pit.Flute profile sealing ring (6) is put in the opening of electronic seal box (5) along and with there being the top pressure closure (8) of wedge stile, by screw, electronic seal box does one seal box being isolated from the outside completely of (5) one-tenth; supplying cell (7) is made no longer to have any connection with the external world with control circuit board (13), so that supplying cell (7) and control circuit board (13) are well protected.

Claims (9)

1. an enclosed type ultrasonic water meter and heat energy meter, it is characterized in that: watchcase (1) is made class U tubular, top-direction at the watchcase of class U-tube is made with water inlet pipe and water outlet pipe, laterally it is made with through transverse tube with water inlet pipe and water outlet pipe horizontal direction side by side in the bottom of its U-tube, and it is made with female thread at its two ends, is made with side siphunculus at its transverse tube wall, and is made with female thread at this side siphunculus tail end, vertical tube side outer wall at its U-tube is made with side siphunculus, is made with female thread at this side siphunculus tail end;nullThrough transverse tube at U-tube has been inserted into pitot tube (28),It is fixed with ultrasonic transducer assembly at the two ends of the transverse tube of U-tube,Side siphunculus at the vertical tube side outer wall of U-tube is fixed with temperature transducer (17) sealedly,Level electrode assembly is loaded in the side siphunculus of the through transverse tube of U-tube,Lateral surface at the through transverse tube of U-tube fixes one or more groups semiconductor temperature differential generating sheet (26),Simultaneously at the sealing ring disposed about (25) of this semiconductor temperature differential generating sheet (26),And post one or more groups radiator (27) at the huyashi-chuuka (cold chinese-style noodles) of semiconductor temperature differential generating sheet (26),Then with watchcase cover (2) and following table clamshell, the signal measurement base table made above is closed,Control circuit board (13) and supplying cell (7) are fixed in the electronic seal box (5) of opening,On the opening edge of electronic seal box (5) equipped with flute profile sealing ring (6),And with the top pressure closure (8) having wedge stile, electronic seal box (5) is sealed.
2. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, is characterized in that: the sidewall of pitot tube (28) is made with side opening.
3. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, is characterized in that: load ultrasonic transducer assembly at the two ends of the transverse tube of U-tube.
4. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, is characterized in that: ultrasound piezoelectric potsherd (23) is fixed in transducer fixed cover (24).
5. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, is characterized in that: the inwall of transducer fixed cover (24) is made with concavo-convex step or female thread.
6. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, it is characterized in that: level electrode assembly is to make electrode shell (14) with nonmetal, and within it equipped with one or more pairs of conductive electrodes (9), conductive electrode (9) is connected with electrode cable (10), then is undertaken solidifying sealing by the space of afterbody in it with epoxy resin.
7. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, it is characterized in that: upper watchcase cover (2) is made with multiple heat radiation steam vent, it is made with the circular siphunculus being cut into many lobes male step at its end face, and wherein a lobe is made with rotary stopper platform.
8. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, it is characterized in that: inside recess is arranged at the bottom of electronic seal box (5), and there is inner groovy in this pit, in pit, rotary stopper platform is arranged at the bottom by electronic seal box (5), is made with holding wire turnover aperture in the bottom of pit.
9. a kind of enclosed type ultrasonic water meter according to claim 1 and heat energy meter, is characterized in that: on the opening edge of electronic seal box (5) equipped with flute profile sealing ring (6).
CN201210248577.5A 2012-07-18 2012-07-18 A kind of enclosed type ultrasonic water meter and heat energy meter CN102788617B (en)

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Publication number Priority date Publication date Assignee Title
CN103364040A (en) * 2013-07-22 2013-10-23 浙江博凯仪表有限公司 Enclosed type ultrasonic water meter and heat meter
CN104390670A (en) * 2014-12-02 2015-03-04 汇智仪表有限公司 Ultrasonic gauge
CN105157884B (en) * 2015-08-31 2018-09-18 大连金佰泓机电设备有限公司 Ultrasonic calorimeter
CN106595793B (en) * 2016-12-09 2019-04-05 浙江科技学院 A kind of ultrasonic water gauge table reflecting surface self cleaning method based on status monitoring
CN108593024B (en) * 2018-06-06 2020-02-21 浙江大学 Civil ultrasonic gas meter
CN108801378B (en) * 2018-06-06 2020-02-21 浙江大学 Civil ultrasonic gas meter and flow detection method of integrated transducer

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