CN201697643U - Testing machine for flow rate of balance valve - Google Patents
Testing machine for flow rate of balance valve Download PDFInfo
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- CN201697643U CN201697643U CN2010201844090U CN201020184409U CN201697643U CN 201697643 U CN201697643 U CN 201697643U CN 2010201844090 U CN2010201844090 U CN 2010201844090U CN 201020184409 U CN201020184409 U CN 201020184409U CN 201697643 U CN201697643 U CN 201697643U
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Abstract
The utility model provides a testing machine for the flow rate of a balance valve, which belongs to the technical field of machinery. The utility model solves the problem that a traditional testing machine for the flow rate can only test the cumulative flow rate and the testing time of a common valve and can not realize the test of the flow rate and the pressure difference of a balance valve. The testing machine for the flow rate of the balance valve comprises a water tank which can hold water, a pipeline for connecting the water tank and a workpiece, and a controller with a touch type outer display screen, wherein a flow pump which can enable the water in the water tank to flow to the workpiece, a pressure-stabilizing tank, a pressure sensor and a flow sensor are sequentially connected on the pipeline, the flow sensor is positioned at the water inlet end or the water outlet end of the workpiece, the flow pump is connected with a frequency converter, the frequency converter, the pressure sensor and the flow sensor are respectively connected with the controller, and a first pressure detector positioned at the water inlet end of the workpiece and a second pressure detector positioned at the water outlet end of the workpiece are connected on the pipeline. The utility model has the advantages of high degree of automation, wide application range, long service life and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of flow tester, particularly a kind of balance valve flow tester.
Background technology
Equalizing valve is under hydraulic regime, the valve of play dynamically, static balancing being regulated, and it has good discharge characteristic.Equalizing valve is by changing the gap (aperture) of spool and valve seat, the resistance to flow that changes the valve of flowing through is to reach the purpose of regulating flow, its effective object is the resistance of system, the new water yield can be distributed according to design-calculated ratio balance, each branch road is increase and decrease in proportion simultaneously, still satisfy the traffic demand of the part load under the preclimax needs, play thermally equilibrated effect.
Kv is the valve coefficient of equalizing valve.Its definition is: when differential pressure is 1bar (about 1kgf/cm2) before and after the equalizing valve, and the flow value of the equalizing valve of flowing through (m3/h).Valve coefficient during the equalizing valve standard-sized sheet is equivalent to the negotiability of common valve.If the equalizing valve aperture is constant, then valve COEFFICIENT K v is constant, that is to say that valve COEFFICIENT K v is decided by aperture.By the valve coefficient under the actual measurement acquisition different opening, equalizing valve just can be as the restricting element of quantitative adjusting flow.
Domestic general hot-water heating enterprise is at the manufacturing production of equalizing valve, and the equalizing valve product of the international esbablished corporation of imitation on product appearance and structure does not just also pass through rigorous deep research to technical feature, the quality requirements of equalizing valve product itself.Wherein main cause is that the R﹠D work of enterprise is also just by virtue of experience being done, and the R﹠D process of new product does not have clear and definite evaluating data, because there is not good checkout equipment that product correlation parameter data are provided.Though there is the flow tester of water heating product in the market, this flow tester can only be tested the integrated flux and the test duration of common valve, can not realize the test to the flow and the pressure reduction of equalizing valve.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, and a kind of balance valve flow tester that can carry out flow and pressure reduction test to equalizing valve is provided.
The purpose of this utility model can realize by following technical proposal: a kind of balance valve flow tester, comprise the water tank that to adorn water, the pipeline and controller that connect water tank and workpiece with touch outer display screen, being connected with in turn on the described pipeline can be with the flow pump of the current direction workpiece in the water tank, buffer tank, pressure transducer and flow sensor, described flow sensor is positioned at the water inlet end or the water side of workpiece, described flow pump is connected with frequency converter, described frequency converter, pressure transducer and flow sensor link with controller respectively, it is characterized in that, be connected with first pressure detector that is positioned at the workpiece water inlet end and second pressure detector that is positioned at the workpiece water side on the described pipeline.
When the equalizing valve workpiece is tested, input test dynamic pressure on the display screen outside touch, test duration and these parameters of test time-delay, the re-start flow pump, this moment, controller made hydraulic pressure reach the test dynamic pressure by the rotating speed of the output frequency change flow pump of control of conversion device, the ducted hydraulic pressure of buffer tank autostable, make the test hydraulic pressure of workpiece remain on required numerical value, outside touch, press the test start button again on the display screen, just begin flow rate test behind the system delay, pressure transducer and flow sensor show integrated flux again with data transmission to controller on the display screen outside touch, test hydraulic pressure, the water outlet time, the test data of average discharge.
The force value that records by first pressure detector in test deducts the force value that second pressure detector records, obtained the pressure attenuation value of equalizing valve workpiece water inlet end and water side, valve coefficient by equalizing valve can obtain this moment equalizing valve to the requirement of flow, and whether the data on flows that last contrastive test obtains just can be analyzed the equalizing valve workpiece qualified.
In above-mentioned balance valve flow tester, described pipeline has trunk line and some subtubes, be connected with flow pump, buffer tank and pressure transducer on the described trunk line, be connected with flow sensor, first pressure detector, workpiece and second pressure detector on the described subtube.Realized synchronism detection like this, the testing efficiency height to a plurality of equalizing valves.
In above-mentioned balance valve flow tester, described first pressure detector is first tensimeter, and described second pressure detector is second tensimeter.During test, artificial sense data and record, directly perceived.
In above-mentioned balance valve flow tester, described first pressure detector is first pressure transducer, and described second pressure detector is second pressure transducer, and described first pressure transducer and second pressure transducer are connected in controller respectively.Touch outer display screen by controller directly shows the force value that first pressure transducer and second pressure transducer record, and is efficient and convenient.
In above-mentioned balance valve flow tester, described pipe end is connected with the water side that is positioned at workpiece and is positioned at the flowing water Valve of water tank top.Current are back in the water tank from flowing water Valve, are delivered in the pipeline by flow pump again, have realized the recycling of current.And when closing flowing water Valve, in the static pressure scope of 0.1MPa～1.0MPa, sealing that can balanced valve for testing.
In above-mentioned balance valve flow tester, described flow pump is connected the water tank sidepiece, and the entrance point of flow pump is connected with the level switch that is positioned at water tank.When liquid level was lower than level switch, flow pump can not start, and it is hot to have prevented that flow pump from doing forwarding, had prolonged the serviceable life of flow pump.
In above-mentioned balance valve flow tester, described water tank top is fixed with the buffering net that prevents that current from splashing.
In above-mentioned balance valve flow tester, described water tank bottom is connected with water drain valve.When the water in the water tank did not promptly use above seven days for a long time, open the water in the water drain valve emptying water tank, in case give birth to dirt; When finding that water quality is relatively poor, open the water in the water drain valve emptying water tank, water is cleared up and changed to water tank.
Compared with prior art, a kind of balance valve flow tester of providing of the utility model has the following advantages:
When 1, the flowing water Valve in this balance valve flow tester is opened, in the dynamic pressure scope of 0.1MPa～0.8MPa, energy balanced valve for testing flow, pressure, the curve data that can directly can show equalizing valve pressure, flow by the touch outer explicit screen of controller, first tensimeter and the second manometric pressure attenuation value that can obtain the equalizing valve inlet end that is provided with have realized the automatic test to the equalizing valve parameter.
When 2, the flowing water Valve in this balance valve flow tester is closed, in the static pressure scope of 0.1MPa～1.0MPa, the sealing of energy balanced valve for testing.
3, this balance valve flow tester has not only been realized the test to the equalizing valve parameter, and can test the flow of common water heating product, and is applied widely.
4, the setting of level switch has prevented the dried commentaries on classics of flow pump in this balance valve flow tester, and the security of flow pump working environment is good, the long service life of flow pump.
Description of drawings
Fig. 1 is the structural representation of this balance valve flow tester.
Among the figure, 1, the test cabinet; 2, water tank; 3, flow pump; 4, buffer tank; 5, pressure transducer; 6, flow sensor; 7, first pressure detector; 8, second pressure detector; 9, buffering net; 10, water drain valve; 11, level switch; 12, flowing water Valve; 13, controller; 14, pipeline; 14a, trunk line; 14b, subtube; 15, frequency converter; 16, workpiece.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1; this balance valve flow tester is not less than parts such as the water tank 2, pipeline 14, controller 13, flow pump 3 of 200L and forms by net capacity; and above-mentioned parts all is loaded in the test cabinet 1; in order to protect controller 13 not to be subjected to the influence of current; test cabinet 1 is divided into two inner rooms, controller 13 independent inner rooms.
Specifically, water into test usefulness is housed in the water tank 2, controller 13 has touch outer display screen, pipeline 14 is connected water tank 2 with workpiece 16, being connected with in turn on pipeline 14 can be with flow pump 3, buffer tank 4, pressure transducer 5 and the flow sensor 6 of the current direction workpiece 16 in the water tank 2, flow sensor 6 is positioned at the water inlet end or the water side of workpiece 16, flow sensor 6 in the present embodiment is positioned at the water inlet end of workpiece 16, flow pump 3 is connected with frequency converter 15, and pressure transducer 5, flow sensor 6 and frequency converter 15 link with controller 13 respectively.
Be connected with first pressure detector 7 that is positioned at workpiece 16 water inlet ends and second pressure detector 8 that is positioned at workpiece 16 water sides on the pipeline 14.First pressure detector 7 in the present embodiment is first tensimeter, and second pressure detector 8 is second tensimeter.During test, artificial sense data and record, directly perceived.Certainly, according to actual conditions, first pressure detector 7 is first pressure transducer, second pressure detector 8 is second pressure transducer, first pressure transducer and second pressure transducer are connected in controller 13 respectively, touch outer display screen by controller 13 can directly show the force value that first pressure transducer and second pressure transducer record like this, and is efficient and convenient.Pipeline 14 ends are connected with the water side that is positioned at workpiece 16 and are positioned at the flowing water Valve 12 of water tank 2 tops.Current are back in the water tank 2 from flowing water Valve 12 at last, are delivered in the pipeline 14 by flow pump 3 again, have realized the recycling of current.
Flow pump 3 is connected water tank 2 sidepieces, and the entrance point of flow pump 3 is connected with the level switch 11 that is positioned at water tank 2.When liquid level was lower than level switch 11, flow pump 3 can not start, and it is hot to have prevented that flow pump 3 from doing forwarding, had prolonged the serviceable life of flow pump 3.Water tank 2 tops are fixed with the buffering net 9 that prevents that current from splashing, and water tank 2 bottoms are connected with water drain valve 10.When the water in the water tank 2 did not promptly use above seven days for a long time, open the water in the water drain valve 10 emptying water tanks 2, in case give birth to dirt; When finding that water quality is relatively poor, open the water in the water drain valve 10 emptying water tanks 2, water is cleared up and changed to water tank 2.
When equalizing valve workpiece 16 is tested, dress water in water tank 2, open flowing water Valve 12, input test dynamic pressure on the display screen outside touch, test duration and these parameters of test time-delay, re-start flow pump 3, this moment, controller 13 made hydraulic pressure reach the test dynamic pressure by the rotating speed of the output frequency change flow pump 3 of control of conversion device 15, hydraulic pressure in the buffer tank 4 autostable pipelines 14, make the test hydraulic pressure of workpiece 16 remain on required numerical value, outside touch, press the test start button again on the display screen, just begin flow rate test behind the system delay, pressure transducer 5 and flow sensor 6 show integrated flux again with data transmission to controller 13 on the display screen outside touch, test hydraulic pressure, the water outlet time, the test data of average discharge.In case of necessity, controller 13 is connected with printer, can print the test data of integrated flux, test hydraulic pressure, water outlet time, average discharge.
The force value that records by first tensimeter in test deducts the force value that second table records, obtained the pressure attenuation value of equalizing valve workpiece 16 water inlet ends and water side, valve coefficient by equalizing valve can obtain this moment equalizing valve to the requirement of flow, and whether the data on flows that last contrastive test obtains just can be analyzed equalizing valve workpiece 16 qualified.Just can obtain qualification rate by test to a plurality of equalizing valves, simple and convenient.
In order to improve testing efficiency, pipeline 14 can be divided into trunk line 14a and 4 subtube 14b, be connected with flow pump 3, buffer tank 4 and pressure transducer 5 on the trunk line 14a, be connected with flow sensor 6, first pressure detector 7, workpiece 16, second pressure detector 8 and flowing water Valve 12 on the subtube 14b.So just realized synchronism detection, the testing efficiency height to a plurality of equalizing valves.
When closing flowing water Valve 12, in the static pressure scope of 0.1MPa～1.0MPa, check whether equalizing valve leaks, the sealing of this test function balanced valve for testing.This test machine is primarily aimed at equalizing valve workpiece 16 and tests, and can certainly carry out flow rate test to common valve, tap.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as test cabinet 1, water tank 2, flow pump 3, buffer tank 4, pressure transducer 5, flow sensor 6, first pressure detector 7, second pressure detector 8, buffering net 9, water drain valve 10, level switch 11, flowing water Valve 12, controller 13, pipeline 14, trunk line 14a, subtube 14b, frequency converter 15, workpiece 16 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1. balance valve flow tester, comprise the water tank (2) that to adorn water, connect the pipeline (14) of water tank (2) and workpiece (16) and have the controller (13) of touch outer display screen, being connected with in turn on the described pipeline (14) can be with the flow pump (3) of the current direction workpiece (16) in the water tank (2), buffer tank (4), pressure transducer (5) and flow sensor (6), described flow sensor (6) is positioned at the water inlet end or the water side of workpiece (16), described flow pump (3) is connected with frequency converter (15), described frequency converter (15), pressure transducer (5) and flow sensor (6) link with controller (13) respectively, it is characterized in that, be connected with first pressure detector (7) that is positioned at workpiece (16) water inlet end on the described pipeline (14) and be positioned at second pressure detector (8) of workpiece (16) water side.
2. balance valve flow tester according to claim 1, it is characterized in that, described pipeline (14) has trunk line (14a) and some subtubes (14b), be connected with flow pump (3), buffer tank (4) and pressure transducer (5) on the described trunk line (14a), be connected with flow sensor (6), first pressure detector (7), workpiece (16) and second pressure detector (8) on the described subtube (14b).
3. balance valve flow tester according to claim 1 and 2 is characterized in that, described first pressure detector (7) is first tensimeter, and described second pressure detector (8) is second tensimeter.
4. balance valve flow tester according to claim 1 and 2, it is characterized in that, described first pressure detector (7) is first pressure transducer, described second pressure detector (8) is second pressure transducer, and described first pressure transducer and second pressure transducer are connected in controller (13) respectively.
5. balance valve flow tester according to claim 1 and 2 is characterized in that, described pipeline (14) end is connected with the water side that is positioned at workpiece (16) and is positioned at the flowing water Valve (12) of water tank (2) top.
6. balance valve flow tester according to claim 1 is characterized in that, described flow pump (3) is connected water tank (2) sidepiece, and the entrance point of flow pump (3) is connected with the level switch (11) that is positioned at water tank (2).
7. balance valve flow tester according to claim 1 is characterized in that, described water tank (2) top is fixed with the buffering net (9) that prevents that current from splashing.
8. according to claim 1 or 7 described balance valve flow testers, it is characterized in that described water tank (2) bottom is connected with water drain valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201844090U CN201697643U (en) | 2010-05-10 | 2010-05-10 | Testing machine for flow rate of balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201844090U CN201697643U (en) | 2010-05-10 | 2010-05-10 | Testing machine for flow rate of balance valve |
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| Publication Number | Publication Date |
|---|---|
| CN201697643U true CN201697643U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201844090U Expired - Fee Related CN201697643U (en) | 2010-05-10 | 2010-05-10 | Testing machine for flow rate of balance valve |
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| CN (1) | CN201697643U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353427A (en) * | 2011-06-23 | 2012-02-15 | 浙江甬岭供水设备有限公司 | Detection device for metrological characteristics of water meter and detection method for using same |
| CN102353428A (en) * | 2011-06-23 | 2012-02-15 | 浙江甬岭供水设备有限公司 | Detection device for metrological characteristics of water meter and detection method for using same |
| CN102678677A (en) * | 2012-05-15 | 2012-09-19 | 贵州航天天马机电科技有限公司 | Hydraulic control type test method for hydraulic balance valve |
| CN103175579A (en) * | 2013-03-14 | 2013-06-26 | 广东省医疗器械质量监督检验所 | Multi-channel pressurization flow test device and test method used for same |
| CN110825128A (en) * | 2019-10-28 | 2020-02-21 | 江苏大学 | Pressure stabilizing system for detecting leakage of valve |
| CN112444354A (en) * | 2020-11-25 | 2021-03-05 | 常熟市安创机电科技有限公司 | Pressure drop detection equipment for tap test |
-
2010
- 2010-05-10 CN CN2010201844090U patent/CN201697643U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353427A (en) * | 2011-06-23 | 2012-02-15 | 浙江甬岭供水设备有限公司 | Detection device for metrological characteristics of water meter and detection method for using same |
| CN102353428A (en) * | 2011-06-23 | 2012-02-15 | 浙江甬岭供水设备有限公司 | Detection device for metrological characteristics of water meter and detection method for using same |
| CN102353427B (en) * | 2011-06-23 | 2014-04-02 | 温岭甬岭水表有限公司 | Detection device for metrological characteristics of water meter and detection method for using same |
| CN102678677A (en) * | 2012-05-15 | 2012-09-19 | 贵州航天天马机电科技有限公司 | Hydraulic control type test method for hydraulic balance valve |
| CN102678677B (en) * | 2012-05-15 | 2015-11-11 | 贵州航天天马机电科技有限公司 | A kind of hydraulic control type test method for hydraulic balance valve |
| CN103175579A (en) * | 2013-03-14 | 2013-06-26 | 广东省医疗器械质量监督检验所 | Multi-channel pressurization flow test device and test method used for same |
| CN103175579B (en) * | 2013-03-14 | 2015-06-17 | 广东省医疗器械质量监督检验所 | Multi-channel pressurization flow test device and test method used for same |
| CN110825128A (en) * | 2019-10-28 | 2020-02-21 | 江苏大学 | Pressure stabilizing system for detecting leakage of valve |
| CN112444354A (en) * | 2020-11-25 | 2021-03-05 | 常熟市安创机电科技有限公司 | Pressure drop detection equipment for tap test |
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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 |
Granted publication date: 20110105 Termination date: 20170510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |