CN102735290A - Flow testing machine of water heating product - Google Patents
Flow testing machine of water heating product Download PDFInfo
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- CN102735290A CN102735290A CN2012102291021A CN201210229102A CN102735290A CN 102735290 A CN102735290 A CN 102735290A CN 2012102291021 A CN2012102291021 A CN 2012102291021A CN 201210229102 A CN201210229102 A CN 201210229102A CN 102735290 A CN102735290 A CN 102735290A
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Abstract
The invention discloses a flow testing machine of a water heating product. The flow testing machine comprises a positioning device, a water supply system, a programmable controller and a computer, wherein the positioning device is used for fixing a tested product; the water supply system comprises a cold water circulation system and a hot water circulation system; the cold and hot water circulation systems both comprise water tanks, conveyer pumps, recycling tanks, recycling pumps, pressure sensors and flow sensors; a refrigeration device is arranged on the water tank of the cold circulation system; a heating device is arranged on the water tank of the hot water circulation system; and the programmable controller is respectively connected with a frequency converter, the pressure sensors, the flow sensors, the refrigeration device, the heating device and a temperature sensor, thereby controlling the devices to work cooperatively. The flow testing machine has the advantages of operation convenience, energy conservation, high test precision and the like.
Description
Technical field
The present invention relates to a kind of water heating product flow detection machine.
Background technology
Existing water heating product flow detection machine is simple in structure, and technical feature falls behind, no security protection; Inefficiency, detection accuracy and degree of accuracy are low, and error is big; Versatility is little; The water system of existing in addition flow detection machine can only provide conventional water, and the water that various water temperature hydraulic pressure can't be provided to be to detect the flow of water heating product under various environment, the technical feature, structure, quality that so just can not verify product itself whether rationally, whether reach the requirement of relevant criterion.
Summary of the invention
The objective of the invention is the deficiency to prior art, a kind of easy to operate, energy-conservation, water heating product flow detection machine that accuracy of detection is high is provided.
The object of the invention is realized through following technical scheme:
A kind of water heating product flow detection machine; Comprise the locating device, water system, Programmable Logic Controller and the computing machine that are used for fixing test product; It is characterized in that: said water system comprises the cold water circulation system, hot water cyclesystem, and said hot water or cold water's circulation system has included
Water tank is connected with test product through water supply line, is connected with external water source through the moisturizing pipeline, and it is provided with the temperature sensor that is used to detect water temperature;
Discharge pump is arranged on the water supply line, and the motor that drives discharge pump is connected with frequency converter;
Collection box, water inlet is connected with test product output water through reflux line, and water delivering orifice is connected with water tank through recovery channel;
Reclaim pump, be arranged on the recovery channel, be used for the water of collection box is transported in the water tank;
Pressure transducer is arranged on the water supply line; Flow sensor is arranged on the water supply line;
The water tank of the said cold water circulation system is provided with refrigerating plant, and the water tank of said hot water cyclesystem is provided with heating arrangement; Said Programmable Logic Controller is connected with frequency converter, pressure transducer, flow sensor, refrigerating plant, heating arrangement and temperature sensor respectively, is used for control and respectively installs co-ordination.
Further, said water tank and said collection box are the multilayer insulation insulation can.
Further, said water tank and collection box are provided with gap and sewage draining exit, and gap is connected with outside sewage-treatment plant with blow-off line through overflow pipe with sewage draining exit, and blow-off line is provided with the scum cock valve.
Further, said water supply line is provided with the Water supply switch valve valve, and said Water supply switch valve valve is connected with Programmable Logic Controller.
Further; Said reflux line is provided with the backflow switch valve; This backflow switch valve is connected with Programmable Logic Controller, and Programmable Logic Controller can be opened according to the backflow switch valve that the cold and hot situation that test product is exported water is controlled the said cold water circulation system or hot water cyclesystem.
Further; Said water tank is provided with the liquid level sensor that is used to detect liquid level; Said moisturizing pipeline is provided with the moisturizing switch valve; This liquid level sensor is connected with Programmable Logic Controller with the moisturizing switch valve, and Programmable Logic Controller can be opened with to the water tank moisturizing according to the signal controlling moisturizing switch valve of liquid level sensor.
Further, said collection box is provided with the liquid level sensor that is used to detect liquid level, and this liquid level sensor is connected with Programmable Logic Controller, and Programmable Logic Controller can be according to the said recovery pump work of the signal controlling of liquid level sensor.
Further, said locating device and water system are arranged at one and detect in the main frame, and said Programmable Logic Controller and computer installation are in a control center, and it is separate to detect main frame and control center.
Further, said water supply line is provided with non-return valve and filtrator.
The present invention has following beneficial effect:
Programmable Logic Controller can according to the signal controlling frequency converter of pressure transducer regulate the discharge pump rotating speed of motor with the hydraulic pressure of regulating water supply line and according to the signal controlling heating arrangement of temperature sensor and refrigerating plant work to regulate and to keep hot water or cold water's water temperature; The hydraulic pressure of water supply line is regulated; Hot water or cold water's water temperature is regulated and is adopted automatic closed loop control; Can efficiently accurately control test hydraulic pressure and water temperature, then can accurately detect the flow of water heating product under various environment (hydraulic pressure, water temperature) through flow sensor again; Hot water or cold water's circulation system is set can carry out recycling to test water, and the conserve water resource with hot water or cold water's recovery separately, can reduce the temperature variation of hot water or cold water in removal process, prevents that energy runs off, energy savings.
Flow sensor can detect the instantaneous delivery in the water supply line in real time; And feed back to Programmable Logic Controller; By after the programmable logic controller (PLC) processing relevant information being reached computing machine, computer recording shows coherent detection data such as integrated flux, water outlet time, average discharge, maximum instantaneous flow; Pressure transducer is monitored the hydraulic pressure in the water supply line in real time; And feed back to the detection data that computing machine shows pressure correlation; Realize the control function of various complicacies through computer software; And various detection gained data are added up, analyze and form form automatically, and compare with various normal datas automatically, reduce testing staff's workload and working strength greatly.
Water tank and collection box adopt the multilayer insulation insulation can, prevent temperature and extraneous transmission, effectively guarantee the stability of temperature, reduce energy and run off energy savings; Water tank and collection box are provided with gap and sewage draining exit; And gap is connected with outside sewage-treatment plant with blow-off line through overflow pipe with sewage draining exit; Can prevent under unexpected situation; The water spill-over goes out to pollute and damage equipment, is convenient to the timely cleaning of precipitating sludge in the water tank and the Unified Treatment of sewage; Liquid level sensor is set on collection box; This liquid level sensor can send signal to Programmable Logic Controller and reclaim pump work with control when high liquid level; When hanging down liquid level, sending signal to Programmable Logic Controller quits work with control recovery pump; Thereby the automatic recovery of water in the realization collection box can effectively guarantee to reclaim pump in addition and be in best user mode, effectively prolongs the serviceable life of reclaiming pump; On the same water tank liquid level sensor is set; This liquid level sensor can send signal to Programmable Logic Controller and open to the water tank moisturizing with control moisturizing switch valve when hanging down liquid level; And stop heating arrangement work in low liquid level position and prevent that the water tank lacks water dry combustion method from damaging; When high liquid level, send signal simultaneously and close with control moisturizing switch valve to Programmable Logic Controller, thus the automatic water supplement and the security protection of realization water tank.
It is separate to detect main frame and control center, and the influence of having avoided electric-control system to receive working environment (like dust, impurity, water vapor, interference etc.) makes the aging and damage of electronic component, guarantees the accuracy of detection and the serviceable life of machines.
In sum: the present invention is from hot water or cold water's supply, recovery, water pressure detection and adjustment, security protection to signal feedback, information processing, programmed control; Form a safety, in order, closed loop automatic control system efficiently, be a kind of automaticity height, compact conformation, accuracy of detection high, satisfy coherent detection standard, maintenance easily, carry out the high-intelligentization flow detection machine of maltilevel security protection.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explain.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a complete machine partial sectional view of the present invention.
Embodiment
With reference to Fig. 1, shown in Figure 2; A kind of water heating product flow detection machine; Comprise the locating device 7, water system, Programmable Logic Controller 22 and the computing machine 21 that are used for fixing test product 3, water system comprises the cold water circulation system, hot water cyclesystem, and locating device and water system are arranged at one and detect in the main frame 1; Programmable Logic Controller 22 is arranged in the control center 2 with computing machine 21; It is separate with control center 2 to detect main frame 1, and wherein, computing machine 21 also can adopt intelligent human/computer interface to replace.
The cold water circulation system comprises that cold water storage cistern 51, cold water discharge pump 53, cold water collection box 59, cold water reclaim pump 57 and refrigerating plant 52; Cold water storage cistern 51 is the multilayer insulation insulation can with cold water collection box 59; Be provided with gap and sewage draining exit (not shown) on it, gap is connected with outside sewage-treatment plant 6 through spilling water, blow-off line 58 with sewage draining exit, and blow-off line 58 is provided with scum cock valve (not shown); Cold water storage cistern 51 is provided with liquid level sensor 512,591 with cold water collection box 59; Cold water storage cistern 51 is provided with temperature sensor 511, and wherein, the water inlet of cold water storage cistern 51 is connected with external water source through the moisturizing pipeline; Water delivering orifice is connected with test product 3 through water supply line 54; The water inlet of cold water collection box 59 is connected with test product 3 output water through reflux line 55, and water delivering orifice is connected with cold water storage cistern 51 through recovery channel 56, and cold water discharge pump 53 is arranged on the water supply line 54; The motor that drives discharge pump is connected with frequency converter 531; Cold water reclaims pump 57 and is arranged on the recovery channel 56, is used for the water of cold water collection box 59 is transported in the cold water storage cistern 51, and water supply line 54 is provided with pressure transducer 543, Water supply switch valve valve 541, flow sensor 542, non-return valve (not shown) and the filtrator (not shown) that is used to detect hydraulic pressure; The moisturizing pipeline is provided with moisturizing switch valve 513; Reflux line 55 is provided with backflow switch valve 551, and Programmable Logic Controller 22 is connected with each switch valve with frequency converter 531, pressure transducer 543, refrigerating plant 52, temperature sensor 511, flow sensor 542, liquid level sensor 512,591 respectively, is used for control and respectively installs co-ordination; Above-mentioned Water supply switch valve valve 541 is solenoid valve or pneumatic pipe valve; Flow sensor 542 is high-accuracy electromagnetic flowmeter, and moisturizing switch valve 513 is solenoid valve or pneumatic pipe valve, and backflow switch valve 551 is pneumatic pipe valve or solenoid valve.
Hot water cyclesystem comprises that boiler 41, hot water supplying pump 43, hot water collection box 49, hot water reclaim pump 47 and heating arrangement 42; Boiler 41 is the multilayer insulation insulation can with hot water collection box 49, is provided with gap and sewage draining exit (not marking among the figure) on it, and gap is connected with outside sewage-treatment plant 6 through blow-off line 48 with sewage draining exit; Blow-off line 48 is provided with scum cock valve (not marking among the figure); Boiler 41 is provided with liquid level sensor 412,491 with hot water collection box 49, and wherein, the water inlet of boiler 41 is connected with external water source through the moisturizing pipeline; Water delivering orifice is connected with test product 3 through water supply line 44; The water inlet of hot water collection box 49 is connected with test product 3 output water through reflux line 45, and water delivering orifice is connected with boiler 41 through recovery channel 46, and hot water supplying pump 43 is arranged on the water supply line 44; The motor that drives discharge pump is connected with frequency converter 431; Hot water reclaims pump 47 and is arranged on the recovery channel 46, is used for the water of hot water collection box 49 is transported in the boiler 41, and water supply line 44 is provided with pressure transducer 443, Water supply switch valve valve 441 and flow sensor 442, non-return valve (figure does not mark) and the filtrator (not marking among the figure) that is used for detecting hydraulic pressure; The moisturizing pipeline is provided with moisturizing switch valve 413; Reflux line 45 is provided with backflow switch valve 451, and Programmable Logic Controller 22 is connected with frequency converter 431, pressure transducer 443, heating arrangement 42, temperature sensor 411, liquid level sensor 412 and each switch valve respectively, is used for control and respectively installs co-ordination; Above-mentioned Water supply switch valve valve 441 is solenoid valve or pneumatic pipe valve; Flow sensor 442 is high-accuracy electromagnetic flowmeter, and moisturizing switch valve 413 is solenoid valve or pneumatic pipe valve, and backflow switch valve 451 is pneumatic pipe valve or solenoid valve.
Concrete working method is: with the flow detection of water heating product under cold water environment is example; 52 work make the water in the cold water storage cistern 51 reach preset temperature and maintenance to Programmable Logic Controller 22 according to temperature sensor 511 signal controlling refrigerating plants; Programmable Logic Controller 22 is regulated cold water discharge pump rotating speed of motor according to pressure transducer 543 signal controlling frequency converters 531 and is reached preset hydraulic pressure and maintenance with the water of controlling water supply line 54; Test product 3 clampings on locating device, are connected water supply line 54 with test product 3, Programmable Logic Controller 22 control Water supply switch valve valves 541 are opened to test product 3 supply low-temperature cold waters; Programmable Logic Controller 22 control backflow switch valves 551 open so that the cold-water reflux of test product 3 outputs in cold water collection box 59; When the water in the cold water collection box 59 reached a high liquid level, liquid level sensor 591 sent it back to Programmable Logic Controller 22 and collects mail number, and Programmable Logic Controller 22 control cold water reclaim pumps 57 work the water in the cold water collection box 59 is transported in the cold water storage cistern 51; And when the water of cold water collection box 59 reaches a low liquid level; Control cold water reclaims pump 57 and quits work, and the water in cold water storage cistern 51 reduces to a low liquid level in process of the test, and liquid level sensor 512 sends the moisturizing signal to Programmable Logic Controller 22; Programmable Logic Controller 22 control moisturizing switch valves 513 are opened; Carry out moisturizing, and when liquid level reached a high liquid level, control moisturizing switch valve 513 cut out; So need not manual work monitoring at the scene in real time, supply, hydraulic pressure adjusting, adjustment, spool water exit test, the cold water that can accomplish cold water automatically reclaims, the cold water storage cistern moisturizing.
Programmable Logic Controller 22 receives information such as flow, pressure, discharge pump rotating speed/frequency, hot and cold water water supply, cistern water level, water temperature; Demonstrate the relevant test data of flow detection to information feedback to computing machine 21 then; And require or relevant criterion requires that instruction is handled, sent to relevant information and adjusts or detection starting main frame 1 relevant action according to system program; Like the switch of pressure adjustment, discharge pump rotating speed/frequency adjustment, each switch valve, reclaim the startup of pump and discharge pump or close etc.; Make machine system in order, safe operation, satisfy the relevant criterion requirement, realize high precision, efficient detection; The information that computing machine 21 reception programmable logic controller (PLC)s 22 feed back also is shown on the display screen; Form is added up, analyzes and formed to various detection gained data automatically; Automatically compare with various normal datas; Require to carry out program development according to relevant criterion, realize various control function, like the water level of the ducted flow of dynamic three-dimensional display, pressure, water tank, the flow direction of detection water; The switch of the pressure in the controlling plumbing fixtures, the frequency of discharge pump, each switch valve, reclaim the startup of pump and discharge pump or close etc., form the flow quantity detecting system of a cover high-intelligentization.
The above is merely preferred embodiment of the present invention, so can not limit the scope that the present invention implements with this, the equivalence of promptly doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (9)
1. water heating product flow detection machine; Comprise the locating device, water system, Programmable Logic Controller and the computing machine that are used for fixing test product; It is characterized in that: said water system comprises the cold water circulation system, hot water cyclesystem, and said hot water or cold water's circulation system has included
Water tank is connected with test product through water supply line, is connected with external water source through the moisturizing pipeline, and it is provided with the temperature sensor that is used to detect water temperature;
Discharge pump is arranged on the water supply line, and the motor that drives discharge pump is connected with frequency converter;
Collection box, water inlet is connected with test product output water through reflux line, and water delivering orifice is connected with water tank through recovery channel;
Reclaim pump, be arranged on the recovery channel, be used for the water of collection box is transported in the water tank;
Pressure transducer is arranged on the water supply line; Flow sensor is arranged on the water supply line;
The water tank of the said cold water circulation system is provided with refrigerating plant, and the water tank of said hot water cyclesystem is provided with heating arrangement; Said Programmable Logic Controller is connected with frequency converter, pressure transducer, flow sensor, refrigerating plant, heating arrangement and temperature sensor respectively, is used for control and respectively installs co-ordination.
2. a kind of water heating product flow detection machine according to claim 1, it is characterized in that: said water tank and said collection box are the multilayer insulation insulation can.
3. a kind of water heating product flow detection machine according to claim 1; It is characterized in that: said water tank and collection box are provided with gap and sewage draining exit; Gap is connected with outside sewage-treatment plant with blow-off line through overflow pipe with sewage draining exit, and blow-off line is provided with the scum cock valve.
4. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines, it is characterized in that: said water supply line is provided with the Water supply switch valve valve, and said Water supply switch valve valve is connected with Programmable Logic Controller.
5. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines; It is characterized in that: said reflux line is provided with the backflow switch valve; This backflow switch valve is connected with Programmable Logic Controller, and Programmable Logic Controller can be opened according to the backflow switch valve that the cold and hot situation that test product is exported water is controlled the said cold water circulation system or hot water cyclesystem.
6. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines; It is characterized in that: said water tank is provided with the liquid level sensor that is used to detect liquid level; Said moisturizing pipeline is provided with the moisturizing switch valve; This liquid level sensor is connected with Programmable Logic Controller with the moisturizing switch valve, and Programmable Logic Controller can be opened with to the water tank moisturizing according to the signal controlling moisturizing switch valve of liquid level sensor.
7. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines; It is characterized in that: said collection box is provided with the liquid level sensor that is used to detect liquid level; This liquid level sensor is connected with Programmable Logic Controller, and Programmable Logic Controller can be according to the said recovery pump work of the signal controlling of liquid level sensor.
8. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines; It is characterized in that: said locating device and water system are arranged at one and detect in the main frame; Said Programmable Logic Controller and computer installation are in a control center, and it is separate to detect main frame and control center.
9. according to claim 1 or 2 or 3 described a kind of water heating product flow detection machines, it is characterized in that: said water supply line is provided with non-return valve and filtrator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102291021A CN102735290A (en) | 2012-07-03 | 2012-07-03 | Flow testing machine of water heating product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102291021A CN102735290A (en) | 2012-07-03 | 2012-07-03 | Flow testing machine of water heating product |
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| CN102735290A true CN102735290A (en) | 2012-10-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103115764A (en) * | 2013-01-21 | 2013-05-22 | 蔡金泉 | Temperature control water nozzle comprehensive detection machine |
| CN104535349A (en) * | 2014-12-29 | 2015-04-22 | 北京建筑大学 | Test method and device aiming at water output system |
| CN108166429A (en) * | 2018-02-01 | 2018-06-15 | 大连职业技术学院 | A kind of automatic control system of environmental sanitation machinery sweeper |
| CN111375107A (en) * | 2020-01-19 | 2020-07-07 | 湖南明康中锦医疗科技发展有限公司 | Water level monitoring system and method for water tank of respiratory support equipment and respiratory support equipment |
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Application publication date: 20121017 |