CN104198177A - Test system for multiple performances of water nozzle - Google Patents
Test system for multiple performances of water nozzle Download PDFInfo
- Publication number
- CN104198177A CN104198177A CN201410478318.0A CN201410478318A CN104198177A CN 104198177 A CN104198177 A CN 104198177A CN 201410478318 A CN201410478318 A CN 201410478318A CN 104198177 A CN104198177 A CN 104198177A
- Authority
- CN
- China
- Prior art keywords
- water
- cold water
- nozzle
- water nozzle
- water inlet
- 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.)
- Pending
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Disclosed is a test system for multiple performances of a water nozzle. The test system is characterized by comprising a water nozzle sensitivity test device (1), a water nozzle flow test device (2) and a water nozzle water pressure resistance and sealing performance test device (3). All the test devices are controlled on one machine through a computer to quickly test sensitivity, flow and water pressure resistance and sealing performance of the water nozzle, and test efficiency of water nozzle performances is improved; meanwhile, outflow water in the test process is recycled, so that water resources are saved, and testing cost is also saved.
Description
Technical field
The invention belongs to decorations building equipment Performance Detection technical field, specifically just relate to the many Performance Test Systems of a kind of water nozzle.
Background technology
Real estate industry's development in recent years rapidly, has brought the high speed development of the relevant industries such as decorating and renovating material thus.Decorating and renovating material is bringing comfortablely, simultaneously easily to people life, brought the serious problems such as pollution also to room air, water resource, affects people's health.Therefore, country and industry relevant departments have issued numerous standards, in order to production, installation and the use of standard decorating and renovating material.While only having the physics of product and chemical property to reach requiring of standard regulation, just can be referred to as specification product, and then come into the market.Water nozzle is a kind of common decorating and renovating material, is conventionally arranged on above water pipe, is a kind of a kind of device that opens and closes and control outlet discharge and coolant-temperature gage that aqueous medium is realized.Along with the scarcity day by day of available freshwater resources and improving constantly of people's quality of life, except hydraulic pressure resistance, sealing property etc. is had strict requirement, the water-saving performance assessment of water nozzle, the evaluation of the cold and hot degree regulating effect of output water temperature (being sensitivity) are also more and more paid attention to.In order to evaluate the various performances of water nozzle, whether released on the market various water nozzle detection systems, but major part is all the method based on manual record data, it is qualified then data and standard to be carried out recently judging water faucet, error is large like this, also labor intensive resource.In addition, the most measuring ability of existing device is single at present, has caused the unnecessary waste of resource.
Chinese patent ZL201320643583.0 discloses a kind of noncontact feedwater utensil and has opened and turn-off time proving installation, it comprises testing table, sample mounting guide rail is installed on testing table mount pad, testing sample installation portion is housed on sample mounting guide rail, be positioned at testing sample installation portion left side cylinder is housed, the water outlet induction installation of cutting off the water supply is equipped with on right side, on the testing table of testing sample installation portion top, distance of reaction governor motion is housed, distance of reaction governor motion front end is equipped with induction analog board, the water outlet induction installation of cutting off the water supply is connected with time time set, this patented technology is utilized automatic checkout equipment to detect noncontact feedwater utensil and is opened and the turn-off time, improved the accuracy of detection efficiency and detection, but measuring ability is single, can only feeding water to noncontact, utensil is opened and the turn-off time is detected.
Summary of the invention
The object of the invention is for existing water nozzle performance testing process efficiency low, the single technological deficiency of accuracy performance not high or that pick-up unit can detect, provide a kind of water nozzle many Performance Test Systems, can on an equipment, to the sensitivity of water nozzle, flow, hydraulic pressure resistance and sealing property, test, improved the efficiency of water nozzle performance test, water outlet in test process is reclaimed simultaneously, saved water resource and cost.
Technical scheme
In order to realize above-mentioned technical purpose, the present invention designs the many Performance Test Systems of a kind of water nozzle, it is characterized in that: it comprises water nozzle sensibility testing arrangement, tap flow proving installation and water nozzle hydraulic pressure resistance and sealing property testing equipment;
Described water nozzle sensibility testing arrangement comprises sensitivity test platform, sensitivity test platform is provided with water nozzle sample mounting frame, on the testing stand of water nozzle sample mounting frame top, servomotor and air pump are housed, back rotation is carried out in the water nozzle handle left and right that servomotor can make to be arranged on water nozzle sample mounting frame, the water nozzle handle that air pump can make to be arranged on water nozzle sample mounting frame moves up and down, described water nozzle sample mounting frame correspondence position on test board is provided with the first hot water inlet pipe road and the first cold water inlet road, described the first hot water inlet pipe road and the first cold water inlet road are connected respectively boiler and cold water storage cistern, described first hot water inlet pipe Lu Shangcong boiler one end is equipped with respectively heat-exchanger pump successively, heat hydraulic pressure table and the first hot water water intaking valve, described first cold water inlet Lu Shangcong cold water storage cistern one end is equipped with respectively water supply pump successively, cold water pressure table and the first cold water water intaking valve,
Described tap flow proving installation comprises flow rate test platform, flow rate test platform is provided with the second hot water inlet pipe road and the second cold water inlet road, described the second hot water inlet pipe road and the second cold water inlet road are connected respectively boiler and cold water storage cistern, described second hot water inlet pipe Lu Shangcong boiler one end is respectively heat-exchanger pump, heat hydraulic pressure table successively, hot water flow meter and the second hot water water intaking valve, described second cold water inlet Lu Shangcong cold water storage cistern one end is respectively water supply pump successively, cold water pressure table, cold water flow meter and the second cold water water intaking valve;
Described water nozzle hydraulic pressure resistance and sealing property testing equipment comprise hydraulic pressure resistance and sealing property test board, hydraulic pressure resistance and sealing property test board are provided with the 3rd cold water inlet road, described the 3rd cold water inlet road is connected to the second cold water storage cistern, described the 3rd cold water inlet Lu Shangcong second cold water storage cistern one end is equipped with the second water supply pump successively, cold water pressure regulator valve, tensimeter and the 3rd cold water water intaking valve.
Further, thermometer and heating tube are housed in described boiler, in described cold water storage cistern, thermometer is housed, described cold water storage cistern is connected with compressor for reducing water temperature in cold water storage cistern, described boiler and cold water storage cistern are connected with recovery tank, and recovery tank can be collected the water outlet in water nozzle sensibility testing arrangement and tap flow proving installation test process.
Further, described servomotor and air pump are all controlled by control device.
Further, the frequency of operation of described heat-exchanger pump and water supply pump is by the Frequency Converter Control in control device.
Further, the switch of described the second water supply pump is controlled by control device.
Further, described heating tube is controlled by control device.
Beneficial effect
The many Performance Test Systems of a kind of water nozzle provided by the invention, on a machine, by computer, control the job order of each proving installation testing tool, test out fast sensitivity, flow and hydraulic pressure resistance and the sealing property of water nozzle, improved the testing efficiency of water nozzle performance, water outlet in test process is reclaimed simultaneously, saved water resource, also saved testing cost.
Accompanying drawing explanation
Accompanying drawing 1 is product figure of the present invention.
Accompanying drawing 2 is water pipeline instrument connection diagrams in water nozzle sensitivity of the present invention and flow rate test.
Accompanying drawing 3 is water pipeline instrument connection diagrams in water nozzle hydraulic pressure resistance of the present invention and sealing property test station.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1
As shown in accompanying drawing 1～3, the many Performance Test Systems of a kind of water nozzle, it comprises water nozzle sensibility testing arrangement 1, tap flow proving installation 2 and water nozzle hydraulic pressure resistance and sealing property testing equipment 3;
Described water nozzle sensibility testing arrangement 1 comprises sensitivity test platform 101, sensitivity test platform 101 is provided with water nozzle sample mounting frame 102, servomotor 103 and air pump 104 are housed on the testing stand of water nozzle sample mounting frame 102 tops, back rotation is carried out in the water nozzle handle left and right that servomotor 103 can make to be arranged on water nozzle sample mounting frame 102, the water nozzle handle that air pump 104 can make to be arranged on water nozzle sample mounting frame 102 moves up and down, described water nozzle sample mounting frame 102 correspondence position on test board is provided with the first hot water inlet pipe road 105 and the first cold water inlet road 106, described the first hot water inlet pipe road 105 and the first cold water inlet road 106 are connected respectively boiler 105a and cold water storage cistern 106a, on described the first hot water inlet pipe road 105, from boiler 105a one end, heat-exchanger pump 105b is housed respectively successively, heat hydraulic pressure table 105c and the first hot water water intaking valve 105d, on described the first cold water inlet road 106, from cold water storage cistern 106a one end, water supply pump 106b is housed respectively successively, cold water pressure table 106c and the first cold water water intaking valve 106d,
Described tap flow proving installation 2 comprises flow rate test platform 201, flow rate test platform 201 is provided with the second hot water inlet pipe road 202 and the second cold water inlet road 203, described the second hot water inlet pipe road 202 and the second cold water inlet road 203 are connected respectively boiler 105a and cold water storage cistern 106a, on described the second hot water inlet pipe road 202, from boiler 105a one end, be respectively heat-exchanger pump 105b successively, heat hydraulic pressure table 105c, hot water flow meter 202d and the second hot water water intaking valve 202e, on described the second cold water inlet road 203, from cold water storage cistern 106a one end, be respectively water supply pump 106b successively, cold water pressure table 106c, cold water flow meter 203d and the second cold water water intaking valve 203e,
Described water nozzle hydraulic pressure resistance and sealing property testing equipment 3 comprise hydraulic pressure resistance and sealing property test board 301, hydraulic pressure resistance and sealing property test board 301 are provided with the 3rd cold water inlet road 302, described the 3rd cold water inlet road 302 is connected to the second cold water storage cistern 301a, on described the 3rd cold water inlet road 302, from second cold water storage cistern 301a one end, the second water supply pump 301b is housed successively, cold water pressure regulator valve 301c, tensimeter 301d and the 3rd cold water water intaking valve 301e.
In described boiler 105a, thermometer and heating tube are housed, in described cold water storage cistern 106a, thermometer is housed, described cold water storage cistern 106a is connected with compressor 107 for reducing water temperature in cold water storage cistern 106a, described boiler 105a and cold water storage cistern 106a are connected with recovery tank 4, and recovery tank 4 can be collected the water outlet in water nozzle sensibility testing arrangement 1 and tap flow proving installation 2 test processs.
Described servomotor 103 and air pump 104 are all controlled by control device 5.
The frequency of operation of described heat-exchanger pump 105b and water supply pump 106b is by the Frequency Converter Control in control device 5.
The switch of described the second water supply pump 301b is controlled by control device 5.
Described heating tube is controlled by control device 5.
Control device 5 is controlled in native system and is arranged on sensitivity test platform 101, and the solenoid valve on flow rate test platform 201 is realized the recovery to water outlet in sensitivity test and flow rate test process.
While utilizing the present invention to carry out water nozzle hydraulic pressure resistance, sealing property test: need respectively water nozzle to be carried out to hydraulic pressure resistance and sealing property test.While carrying out hydraulic pressure resistance test, spool upstream hydraulic pressure resistance mechanical test process is: switch on power, sample is installed, close water nozzle spool, start water supply pump, open water intaking valve, regulate pressure regulator valve, regulate pressure to stipulating requirement, any parts in range estimation water nozzle spool upstream have or not permanent strain; Spool downstream hydraulic pressure resistance mechanical test process is: switch on power, sample is installed, the nozzle valve core of fetching boiling water, manually blocks water delivering orifice, starts water supply pump, opens water intaking valve, regulates pressure, and any parts in range estimation water nozzle spool downstream have or not permanent strain.When carrying out leakage test, spool upstream seal process of the test is to switch on power, and sample is installed, close water nozzle spool, start water supply pump, open water intaking valve, regulate pressure regulator valve, regulate pressure to standard-required, check afterwards that at the appointed time water nozzle spool and upstream passageway have or not Seepage; Spool downstream sealing property process is to switch on power, installation test sample, the nozzle valve core of fetching boiling water, manually block water delivering orifice, start water supply pump, open water intaking valve, regulate pressure regulator valve, regulate pressure to standard-required, check afterwards that at the appointed time spool downstream seal member has or not Seepage.
While carrying out tap flow test, concrete steps are to switch on power, installation test sample, open heat-exchanger pump, water supply pump adjusting cold water storage cistern temperature to 10～15 ℃, regulate boiler temperature to 60～65 ℃, treat that water temperature reaches regulation requirement, regulate pressure to standard-required, open water intaking valve, open water nozzle, according to water nozzle categorical measures tap flow size.
While carrying out water nozzle sensitivity test, switch on power, water nozzle is arranged on testing table, the end of water nozzle handle is connected with air pump with servomotor, water nozzle handle is opened into flow maximum rating, open cold water heat-exchanger pump, regulate cold water storage cistern temperature to 10～15 ℃, regulate boiler temperature to 60～65 ℃, treat that water temperature reaches regulation requirement, regulate hydraulic pressure to stipulating requirement, the velocity of rotation that water nozzle handle is set in computer program is 0.5 °/s, open water intaking valve, start water nozzle sensitivity test, measure the time of water nozzle rotation and the relation of water temperature.According to the relation of water nozzle run duration and water temperature, manually convert the relation of water temperature and water nozzle rotational angle to again.
The many Performance Test Systems of a kind of water nozzle provided by the invention, on a machine, by computer, control each testing tool, test out fast sensitivity, flow and hydraulic pressure resistance and the sealing property of water nozzle, improve the testing efficiency of water nozzle performance, saved testing cost simultaneously.
Claims (6)
1. the many Performance Test Systems of water nozzle, is characterized in that: it comprises water nozzle sensibility testing arrangement (1), tap flow proving installation (2) and water nozzle hydraulic pressure resistance and sealing property testing equipment (3);
Described water nozzle sensibility testing arrangement (1) comprises sensitivity test platform (101), sensitivity test platform (101) is provided with water nozzle sample mounting frame (102), on the testing stand of water nozzle sample mounting frame (102) top, servomotor (103) and air pump (104) are housed, back rotation is carried out in the water nozzle handle left and right that servomotor (103) can make to be arranged on water nozzle sample mounting frame (102), air pump (104) can make the water nozzle handle being arranged on water nozzle sample mounting frame (102) move up and down, described water nozzle sample mounting frame (102) correspondence position on test board is provided with the first hot water inlet pipe road (105) and the first cold water inlet road (106), described the first hot water inlet pipe road (105) and the first cold water inlet road (106) are connected respectively boiler (105a) and cold water storage cistern (106a), described the first hot water inlet pipe road (105) is upper is equipped with respectively heat-exchanger pump (105b) successively from boiler (105a) one end, heat hydraulic pressure table (105c) and the first hot water water intaking valve (105d), described the first cold water inlet road (106) is upper is equipped with respectively water supply pump (106b) successively from cold water storage cistern (106a) one end, cold water pressure table (106c) and the first cold water water intaking valve (106d),
Described tap flow proving installation (2) comprises flow rate test platform (201), flow rate test platform (201) is provided with the second hot water inlet pipe road (202) and the second cold water inlet road (203), described the second hot water inlet pipe road (202) and the second cold water inlet road (203) are connected respectively boiler (105a) and cold water storage cistern (106a), described the second hot water inlet pipe road (202) is upper is respectively heat-exchanger pump (105b) from boiler (105a) one end successively, heat hydraulic pressure table (105c), hot water flow meter (202d) and the second hot water water intaking valve (202e), described the second cold water inlet road (203) is upper is respectively water supply pump (106b) from cold water storage cistern (106a) one end successively, cold water pressure table (106c), cold water flow meter (203d) and the second cold water water intaking valve (203e),
Described water nozzle hydraulic pressure resistance and sealing property testing equipment (3) comprise hydraulic pressure resistance and sealing property test board (301), hydraulic pressure resistance and sealing property test board (301) are provided with the 3rd cold water inlet road (302), described the 3rd cold water inlet road (302) is connected to the second cold water storage cistern (301a), described the 3rd cold water inlet road (302) is upper is equipped with the second water supply pump (301b) successively from the second cold water storage cistern (301a) one end, cold water pressure regulator valve (301c), tensimeter (301d) and the 3rd cold water water intaking valve (301e).
2. many Performance Test Systems of a kind of water nozzle as claimed in claim 1, it is characterized in that: in described boiler (105a), thermometer and heating tube are housed, in described cold water storage cistern (106a), thermometer is housed, described cold water storage cistern (106a) is connected with compressor (107) for reducing water temperature in cold water storage cistern (106a), described boiler (105a) and cold water storage cistern (106a) are connected with recovery tank (4), and recovery tank (4) can be collected the water outlet in water nozzle sensibility testing arrangement (1) and tap flow proving installation (2) test process.
3. the many Performance Test Systems of a kind of water nozzle as claimed in claim 1, is characterized in that: described servomotor (103) and air pump (104) all pass through control device (5) and control.
4. the many Performance Test Systems of a kind of water nozzle as claimed in claim 1, is characterized in that: the frequency of operation of described heat-exchanger pump (105b) and water supply pump (106b) is by the Frequency Converter Control in control device (5).
5. the many Performance Test Systems of a kind of water nozzle as claimed in claim 1, is characterized in that: the switch of described the second water supply pump (301b) is controlled by control device (5).
6. the many Performance Test Systems of a kind of water nozzle as claimed in claim 2, is characterized in that: described heating tube is controlled by control device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478318.0A CN104198177A (en) | 2014-09-18 | 2014-09-18 | Test system for multiple performances of water nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478318.0A CN104198177A (en) | 2014-09-18 | 2014-09-18 | Test system for multiple performances of water nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104198177A true CN104198177A (en) | 2014-12-10 |
Family
ID=52083504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410478318.0A Pending CN104198177A (en) | 2014-09-18 | 2014-09-18 | Test system for multiple performances of water nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104198177A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571840A (en) * | 2015-12-11 | 2016-05-11 | 福建三鲸消防技术研究院有限公司 | Test device of pressure test of water spraying head |
| CN107655642A (en) * | 2017-10-18 | 2018-02-02 | 江苏省建筑科学研究院有限公司 | A kind of integral bathroom comprehensive performance test device |
| CN111141464A (en) * | 2019-12-28 | 2020-05-12 | 宁波奥雷士洁具有限公司 | Tap gas tightness test machine |
| CN113790880A (en) * | 2021-09-15 | 2021-12-14 | 合肥天诺测控科技有限公司 | Water nozzle flow, sealing and sensitivity testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2145655B1 (en) * | 1996-09-23 | 2001-02-01 | Smb Systems S L | MACHINE TO CHECK THE SEALING OF TAP. |
| DE10201231A1 (en) * | 2002-01-10 | 2003-07-24 | Hansgrohe Ag | Simple device for testing the non-return valves of bathroom and domestic taps connects to the tap or shower outlet and has a pressure measurement device as well as means of increasing the pressure applied to the tap |
| CN201107169Y (en) * | 2007-10-31 | 2008-08-27 | 辉煌水暖集团有限公司 | Single handle double control water nozzle switch life testing apparatus |
| CN201107170Y (en) * | 2007-10-31 | 2008-08-27 | 辉煌水暖集团有限公司 | Single handle single control and double control water nozzle switch life testing apparatus |
| CN201488884U (en) * | 2009-05-12 | 2010-05-26 | 佛山市质量计量监督检测中心 | Comprehensive performance testing device of temperature control water nozzle |
| CN201707219U (en) * | 2010-02-08 | 2011-01-12 | 上海市质量监督检验技术研究院 | Detection device for temperature control water faucet |
| CN204154480U (en) * | 2014-09-18 | 2015-02-11 | 上海建科检验有限公司 | The many Performance Test Systems of a kind of water nozzle |
-
2014
- 2014-09-18 CN CN201410478318.0A patent/CN104198177A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2145655B1 (en) * | 1996-09-23 | 2001-02-01 | Smb Systems S L | MACHINE TO CHECK THE SEALING OF TAP. |
| DE10201231A1 (en) * | 2002-01-10 | 2003-07-24 | Hansgrohe Ag | Simple device for testing the non-return valves of bathroom and domestic taps connects to the tap or shower outlet and has a pressure measurement device as well as means of increasing the pressure applied to the tap |
| CN201107169Y (en) * | 2007-10-31 | 2008-08-27 | 辉煌水暖集团有限公司 | Single handle double control water nozzle switch life testing apparatus |
| CN201107170Y (en) * | 2007-10-31 | 2008-08-27 | 辉煌水暖集团有限公司 | Single handle single control and double control water nozzle switch life testing apparatus |
| CN201488884U (en) * | 2009-05-12 | 2010-05-26 | 佛山市质量计量监督检测中心 | Comprehensive performance testing device of temperature control water nozzle |
| CN201707219U (en) * | 2010-02-08 | 2011-01-12 | 上海市质量监督检验技术研究院 | Detection device for temperature control water faucet |
| CN204154480U (en) * | 2014-09-18 | 2015-02-11 | 上海建科检验有限公司 | The many Performance Test Systems of a kind of water nozzle |
Non-Patent Citations (2)
| Title |
|---|
| 王泽波等: "温控水嘴综合性能检测系统的研制", 《制造业自动化》, vol. 31, no. 8, 31 August 2009 (2009-08-31), pages 61 - 63 * |
| 肖瑞凤: "陶瓷片密封水嘴技术评价指标与鉴定测试方法", 《中国水利报》, 6 November 2003 (2003-11-06) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571840A (en) * | 2015-12-11 | 2016-05-11 | 福建三鲸消防技术研究院有限公司 | Test device of pressure test of water spraying head |
| CN107655642A (en) * | 2017-10-18 | 2018-02-02 | 江苏省建筑科学研究院有限公司 | A kind of integral bathroom comprehensive performance test device |
| CN107655642B (en) * | 2017-10-18 | 2024-07-26 | 江苏省建筑科学研究院有限公司 | Integral bathroom comprehensive performance testing device |
| CN111141464A (en) * | 2019-12-28 | 2020-05-12 | 宁波奥雷士洁具有限公司 | Tap gas tightness test machine |
| CN111141464B (en) * | 2019-12-28 | 2021-10-29 | 宁波奥雷士洁具有限公司 | Tap gas tightness test machine |
| CN113790880A (en) * | 2021-09-15 | 2021-12-14 | 合肥天诺测控科技有限公司 | Water nozzle flow, sealing and sensitivity testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101982756B (en) | Cold and hot alternation impact test device | |
| CN104198177A (en) | Test system for multiple performances of water nozzle | |
| CN203881525U (en) | High-temperature valve detector based on air heating system | |
| CN103954441A (en) | Device and method for detecting and testing high-temperature valve based on air heating system | |
| CN203494530U (en) | Constant-temperature water bathing device for detecting quality of asphalt | |
| CN204228242U (en) | A kind of flow measurement electricity testing device | |
| CN204154480U (en) | The many Performance Test Systems of a kind of water nozzle | |
| CN102455722A (en) | Constant temperature and constant pressure control system of de-aerator | |
| CN103712395A (en) | Closed-type water cooling system and cooling method thereof | |
| CN102654469A (en) | Device for fire resistance tests of pressure elements | |
| CN204154479U (en) | A kind of tap flow proving installation | |
| CN101603735A (en) | Heat pump water heater capable of ultrasonic water level detection | |
| CN204188373U (en) | A kind of water nozzle sensibility testing arrangement | |
| CN205785443U (en) | Water hammer testing experiment machine | |
| CN104198178A (en) | Water nozzle sensitivity test device | |
| CN202631464U (en) | Buried pipe field heat exchange performance detecting and testing device | |
| CN202511981U (en) | Universal testing device for gas water-heating device | |
| CN204154581U (en) | A kind of water nozzle hydraulic pressure resistance and sealing property testing equipment | |
| CN209326986U (en) | A kind of cylinder pressure sensor constant temperature and pressure control device | |
| CN103954381A (en) | Calorimeter durability test device | |
| CN204116209U (en) | A kind of coating high-temp abrasion resistance tester | |
| CN103499376A (en) | Durability test device and method for hot water meters | |
| CN203980439U (en) | Heat measuring system auto hydraulic balance control device | |
| CN202538992U (en) | Artificial rain simulator used for insulator test system | |
| CN206583619U (en) | A kind of heater test platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |