CN201003994Y - Automatic marking and detection device for heat meter - Google Patents
Automatic marking and detection device for heat meter Download PDFInfo
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- CN201003994Y CN201003994Y CNU2006200758890U CN200620075889U CN201003994Y CN 201003994 Y CN201003994 Y CN 201003994Y CN U2006200758890 U CNU2006200758890 U CN U2006200758890U CN 200620075889 U CN200620075889 U CN 200620075889U CN 201003994 Y CN201003994 Y CN 201003994Y
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Abstract
The utility model relates to a heat table automatic calibrating detecting device which comprises a homothermal water supplying tank, a water pump, a pressure maintaining container, variety of computations, a return water tank and an electric controlling parts; wherein, the electric parts comprises a central managing unit and a display screen, the central managing unit is provided with a homothermal and water pump controlling device, the temperature and the water flow storing device, a heat calculating device, a calibrating detecting device, a heat and calibrating detecting records storing device and a displaying driving device. The central managing unit contrasts the collected variety of inspecting information such as temperature, flow and standard flow, standard temperature, standard heat through analyzing to calculate the correct parameter used for the heat table calibrating; the displaying driving device sends the relevant data content to the display screen by a displaying driving module based on the input order of the manual board. Because adopts all kinds of central managing units and automatic meter-clamping apparatus of intelligent devices so the utility model is characterized that has ability to automatically realize the calibrating detecting of the heat table, the precision of the calibrating detecting is higher than the normal detecting device and the utility model has the function of printing and counting records.
Description
Technical field:
The utility model relates to a kind of demarcation checkout equipment that is applied to metering outfit, especially is applied to the automatic demarcation checkout equipment of calorimeter.
Background technology:
Along with the raising of people's living standard, calorimeter is applied more and more as a kind of novel metering outfit, domestic present many calorimeter manufacturing enterprises that occurred.Demarcation testing for calorimeter, it is faster more accurate to accomplish, to satisfy the double requirements of throughput rate and reliable quality, therefore automation equipment is adopted in the work that need detect the demarcation of calorimeter, yet what still have at present that many enterprises adopt is that the demarcation that the mode of manual record is carried out calorimeter detects.The CN2802481Y of Patent Office of the People's Republic of China number a kind of integrative calorimeter calibrating installation is disclosed, it comprises cabinet and the constant temperature water tank that is installed in the cabinet, electric heater, pressurizing vessel, the calibrating platform, flowrate control valve, standard scale, multiport valve and balance weighing apparatus, electric heater is installed in the constant temperature water tank, constant temperature water tank passes through rising pipe, variable frequency pump links to each other with the top water inlet of pressurizing vessel simultaneously, the water outlet mouth of a river of pressurizing vessel bottom links to each other with the water inlet of calibrating on the platform, be serially connected on the calibrating platform by the calibrating calorimeter, the import that the water delivering orifice of calibrating platform is connected with flowrate control valve links to each other, the outlet of multiport valve is leaded up to pipeline and is linked to each other with constant temperature water tank, one the tunnel connects balance weighing apparatus, and balance weighing apparatus links to each other with constant temperature water tank by pipeline again.Undeclared its of this patented technology is manually to examine and determine or automatic Verification, and be unspecified for its electric control system, and the flow process of calibrating is not done any explanation.Along with development of technology, intelligent calorimeter (has double temperature sensor, and can carry out intelligence computation) progressively substitute the calorimeter of conventional art, especially for the demarcation testing of intelligent calorimeter, aforesaid integrative calorimeter calibrating installation can't satisfy the demand of calibrating.
The utility model content:
The purpose of this utility model is to provide a kind of and can demarcate the equipment of detection to calorimeter automatically for overcoming the deficiencies in the prior art.
Technical solution of the present utility model is: a kind of calorimeter is demarcated checkout equipment automatically, comprise the constant temperature water supply case, water pump, pressurizing vessel, demarcate monitor station, proving flowmeter, standard thermometer, return water tank and electric control system, the constant temperature water supply case is provided with water pipe and is connected with the water inlet of water pump, the outlet of water pump connects after the pressurizing vessel and tested calorimeter, proving flowmeter, return water tank connects the pipeline that constitutes a detection usefulness by water pipe, standard thermometer is located in constant temperature water supply case and the return water tank, electrical control division is arranged with the heated at constant temperature module, the water pump driver module, temperature collect module, normal flow acquisition module and guidance panel, temperature collect module comprise the collection of thermostatically controlled temp, the collection of the standard temperature of constant temperature water supply case and return water tank; It is characterized in that also being provided with in the described signal piping refrigeratory, described electric part also comprises CPU (central processing unit) and display, and CPU (central processing unit) is provided with thermostatically-controlled equipment, pump control unit, temperature storage device, flow memory storage, heat Calculation device, heat storage device, demarcation pick-up unit, demarcates and detect record memory storage and display drive apparatus; The contrast operation result that the constant temperature water supply oven temperature, degree that thermostatically-controlled equipment collects according to the desired temperature and the temperature collect module of guidance panel input carries out carries out the work of heated at constant temperature module or stops; Pump control unit is according to the steering order of guidance panel input, carries out the work of water pump driver module or stops; Constant temperature water supply case standard temperature that temperature storage device storing temperature acquisition module collects and return water tank standard temperature, the normal flow data that flow memory device stores flow collection module collects, the heat Calculation device is according to the data of flow memory storage, the data of temperature storage device are carried out the heat criterion calculation, and the heat standard figures is stored in the standard heat storage device, demarcate the flow of pick-up unit according to the tested calorimeter that receives, temperature, the numerical value of heat and aforesaid normal flow, standard temperature, the standard heat compares, and calculates the correction factor that calorimeter is demarcated usefulness; Display drive apparatus sends to display with corresponding data content through driver module according to the input instruction of guidance panel.
Further technical solution of the present utility model is: described equipment also is provided with electronic scales, and described water pump is a variable frequency pump, and described normal flow is counted the proving flowmeter of a plurality of specifications, and the entrance point of each flowmeter is provided with solenoid valve; Described electric part also is provided with pump variable frequency driver module, printer, Weight acquisition module and carries out the communication module of exchanges data with tested intelligent calorimeter; Described CPU (central processing unit) also is provided with weight memory storage, print control unit, pump variable frequency drive unit, carries out the communicator of exchanges data with tested intelligent calorimeter; The Weight acquisition module is sent to the weight memory storage with the weight data of electronic scales, and the pump variable frequency driver module is controlled variable frequency pump according to the control signal of pump variable frequency drive unit; Print control unit is sent to printer according to the input instruction of guidance panel with the data of printing; Described communicator receives flow, temperature and the thermal data that tested intelligent calorimeter sends, and the correction factor that described demarcation pick-up unit is calculated is sent to tested intelligent calorimeter.
Compared with prior art, the beneficial effects of the utility model are: the utility model is provided with the CPU (central processing unit) and the automatic meter-clamping apparatus of all kinds of intelligent apparatus because of employing, make the characteristics that the utlity model has the demarcation detection that can realize calorimeter automatically, and demarcate accuracy of detection and be higher than common checkout equipment, have the function of printing and statistic record.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings:
Fig. 1 is the control element block scheme of the utility model specific embodiment;
Fig. 2 is the piping diagram of the utility model specific embodiment;
Fig. 3 is the control flow chart of the utility model specific embodiment.
Embodiment:
Shown in Figure 1 is the control element block scheme of specific embodiment of the utility model, and the control element that the utility model calorimeter is demarcated checkout equipment automatically comprises CPU (central processing unit), display, guidance panel, proving flowmeter, standard electronic scale, standard thermometer, printer, tested calorimeter, constant temperature water supply case, variable frequency pump, meter-clamping apparatus, recirculated water solenoid valve, flowmeter solenoid valve and is provided with the electric control box of various collection driver modules.CPU (central processing unit) is provided with thermostatically-controlled equipment, pump control unit, temperature storage device, flow memory storage, heat Calculation device, heat storage device, demarcation pick-up unit, demarcates and detect record memory storage and display drive apparatus; The contrast operation result that the constant temperature water supply oven temperature, degree that thermostatically-controlled equipment collects according to the desired temperature and the temperature collect module of guidance panel input carries out carries out the work of heated at constant temperature module or stops; Pump control unit is according to the steering order of guidance panel input, carries out the work of water pump driver module or stops; Constant temperature water supply case standard temperature that temperature storage device storing temperature acquisition module collects and return water tank standard temperature, the normal flow data that flow memory device stores flow collection module collects, the heat Calculation device is according to the data of flow memory storage, the data of temperature storage device are carried out the heat criterion calculation, and the heat standard figures is stored in the standard heat storage device, demarcate the flow of pick-up unit according to the tested calorimeter that receives, temperature, the numerical value of heat and aforesaid normal flow, standard temperature, the standard heat compares, calculate calorimeter and demarcate the correction factor of usefulness and be sent to tested calorimeter that (temperature difference point that tested calorimeter need detect usually is a plurality of, this moment should earlier the detection of whole temperature difference points be finished after, gather again calculate correction factor); Display drive apparatus sends to display with corresponding data content through driver module according to the input instruction of guidance panel.
Shown in Figure 2 is the piping diagram of specific embodiment of the utility model, it is so to constitute that the utility model calorimeter is demarcated checkout equipment automatically: demarcate monitor station 4 and be located at the overhead position of height about a meter, demarcate on the monitor station 4 and be fixed with automatic meter-clamping apparatus, meter-clamping apparatus is made of fixed chuck 40, sliding clamp 41 and the cylinder 43 that connects with sliding clamp, cylinder 43 is realized moving of sliding clamp 41 by electromagnetic valve of gas circuit 44 (controlling by CPU (central processing unit)), thus the clamping that realizes tested calorimeter 45 with unclamp.Utilize sealed attachment pipe 42 to carry out sealed attachment between the tested calorimeter 45; The rear side lower left (optimum position of supply tank) of demarcating monitor station is provided with constant temperature water supply case 1, and the volume of constant temperature water supply case 1 is according to calculating the longest detection time of the maximum caliber calorimeter of required detection.The constant temperature water supply case is provided with water filling water pipe (can utilize solenoid valve to be designed to control automatically by CPU (central processing unit)), is provided with constent temperature heater 12 (carrying out thermostatic control by CPU (central processing unit)) in the constant temperature water supply case 1; Water pump 2 is variable frequency pump (the variable water pumps that adopt, the variable frequency control of pump motor is realized the variation of Pump output by CPU (central processing unit)), water pump 2 connects (to demarcate the precision that detects in order improving, can set up a filtrator 12 in this water pipe) by water pipe with supply tank; The outlet of water pump 2 (can be installed on the casing top of constant temperature water supply case) is connected with a pressurizing vessel 3 (purpose is the pressure for the voltage stabilizing exit of pump), the outlet of pressurizing vessel 3 connects (can detect single calorimeter, a plurality of calorimeters of also can connecting simultaneously detect) with tested calorimeter 45; Tested calorimeter 45 all has the communication module in an order wire and the electric control box 61 to be connected (detected object of this specific embodiment is mainly intelligent calorimeter), and the temperature sensor of tested calorimeter is connected in the constant temperature water supply case 1 respectively and return water tank 9 interior (water tank is provided with the jack that is used to put temperature sensor of several handled easilies); The quantity of standard thermometer is two, respectively is located in constant temperature water supply case and the return water tank (installation site of the temperature sensor of position and calorimeter is close); The rising pipe of tested calorimeter connects a refrigeratory 5, refrigeratory 5 comprises that cooling water pipe and cooling blower are (by central processing unit controls, also can adopt frequency-variable module that cooling blower is carried out variable frequency control, to realize the different cooling needs that detect temperature difference point of demarcating, control time can be synchronous with water pump 2), the exit of refrigeratory 5 a plurality of flowmeter solenoid valves in parallel again, the latus rectum of solenoid valve is consistent with the bore of proving flowmeter, flow solenoid valve comprises big flow solenoid valve 71, middle flow solenoid valve 72, low discharge solenoid valve 73, (CPU (central processing unit) selects a corresponding flow solenoid valve to open according to the bore of tested calorimeter to electronic scales flow solenoid valve 74 during detection, all the other flow solenoid valves are closed condition), connect big proving flowmeter 81 behind the big flow solenoid valve 71, proving flowmeter 82 in connecing behind the middle flow solenoid valve 72, connect little proving flowmeter 83 behind the low discharge solenoid valve 73, connect electronic scales 84 behind the electronic scales flow solenoid valve 74; (water delivering orifice is provided with a solenoid valve 75 to the water delivering orifice of the title water tank of proving flowmeter 81,82,83 and electronic scales 84, the control of its switch is synchronous with recirculated water solenoid valve 92) deliver to return water tank 9 by the water pipe water that just will detect in parallel, the purpose that is provided with electronic scales 84 is the demarcation detection requirement when satisfying low discharge; The position of return water tank 9 is higher than permanent water supply tank, and be separated with a segment distance (preventing thermal loss), automatically flow in the constant temperature water supply case 1 with the water of realizing return water tank 9, return water tank bottom is provided with a circulating water pipe 91 (and being provided with recirculated water solenoid valve 92 on circulating water pipe) and will delivers to the constant temperature water supply case and utilize again, whenever do one again and demarcate check point, CPU (central processing unit) 64 will make recirculated water solenoid valve 92 open.Electric part 6 has comprised electric control box 61, display 62, guidance panel 63, has placed CPU (central processing unit) 64, printer 65 and standard thermometer 66A, 66B in the electric control box; The position of electric control box 6 should be positioned at the top of demarcating monitor station 4, and it is also safe and reliable promptly to be convenient to operation, the position of the eyes maintenance level the when height of display 62 and operator stand operation.The standard thermometer that the utility model uses and the precision of proving flowmeter all are higher than one to two grade of precision of the flowmeter and the temperature sensor of tested calorimeter, utilize the high precision standard measuring element that tested calorimeter is demarcated, computing formula and statistical study by science, coefficient of alteration to tested calorimeter is revised, and realizes the purpose that the demarcation higher than conventional equipment detects.
Describe in conjunction with the control flow chart of the utility model specific embodiment more below, as shown in Figure 3, the concrete operations step that calorimeter is demarcated checkout equipment automatically is as follows:
1, after the power-up initializing, inject detection water when duplicate detection (if open recirculated water solenoid valve) of this batch, the tested calorimeter of clamping, select the corresponding standard flowmeter, the temperature difference that select to need demarcate detects count (be generally three temperature difference points, and set the first control temperature of constant temperature water supply case 1).
2, be made as on the guidance panel 63 and can carry out corresponding manually debugging action when manual, be made as when automatic, can demarcate the workflow of detection automatically.
3, automatic mode operation, the temperature stabilization of constant temperature water supply case 1 is (CPU (central processing unit) is provided with PID computing or other temperature control mode the temperature of constant temperature water supply case is controlled at design temperature) when design temperature, close recirculated water solenoid valve 92, start water pump 2 work (discharge capacity of water pump performs setting in advance according to the bore of tested calorimeter), temperature storage device (temperature that the storing temperature acquisition module collects), flow memory storage (flow that storage flow acquisition module collects), heat Calculation device (calculating the numerical value of heat according to the former two's data by computing formula), heat storage device (the heat Calculation result is preserved) enters duty respectively, data with intelligent calorimeter communicate again, the temperature that intelligent calorimeter is collected, flow and heat and standard value compare, drawing comparing result and preservation (demarcates pick-up unit and is divided into forward part and rear section, be the forward part work of demarcating pick-up unit at this moment), after finishing a temperature difference point detection, counter N adds 1, enters comparer (N＜M) judge again.
4, (result of N＜M) is a true time to comparer, sets the constant temperature water supply oven temperature, degree of next temperature difference point, opens recirculated water solenoid valve 92, repeating step 3.
5, (result of N＜M) is a fictitious time to comparer, the temperature difference point that shows this demarcation detection is all finished, front demarcation is several times detected error generate correction factor (demarcating the rear section work of pick-up unit) by computing formula (computing formula is not done explanation at this), and correction factor is sent to tested intelligent calorimeter (at the amount detection of intelligent calorimeter when being a plurality of, can realize equally, only need the data of each calorimeter are done corresponding processing, do not elaborate at this), and batch deposit record archives (when needing can by it being printed or derives) in for other computing machine use by what demarcate to detect batch products, at last counter N is put 0, and finish this automatic detection.
6, stop to judge,, will stop above-mentioned manual or automatic workflow,, continue by above-mentioned manual or automated manner work if do not have if halt instruction input is arranged.
The duty of CPU (central processing unit) 64 handled temperature, flow, caloric information and each element all can show in every way by display 62, and displaying contents is also selected by the input instruction of guidance panel 63.CPU (central processing unit) also can be provided with communicator, host computer by the communication module in the electric control box and production, quality management department carries out Long-distance Control and centralized management, in the testing process of calorimeter, because of the time longer, the automatic demarcation that the utility model had detects, saves these characteristics such as artificial time, makes its demarcation at calorimeter can obtain using more widely in detecting.
Aforementionedly claim of the present utility model is had been described in detail in conjunction with three accompanying drawings; but its embodiment and content are not limited to this; no matter such as CPU (central processing unit) is to adopt industry control PC or miniature single-chip microcomputer; whole the change of equipment on dimensional orientation comprises that the situations such as order variation of each class component in the pipeline still belong to rights protection scope of the present utility model.
By as seen above-mentioned, adopt CPU (central processing unit) and the automatic meter-clamping apparatus that is provided with all kinds of intelligent apparatus because of the utility model, make to the utlity model has the characteristics that the demarcation that can realize calorimeter automatically detects, and demarcate accuracy of detection and be higher than common checkout equipment, have and print and the function of statistic record.
Claims (5)
1, a kind of calorimeter is demarcated checkout equipment automatically, comprise the constant temperature water supply case, water pump, pressurizing vessel, demarcate monitor station, proving flowmeter, standard thermometer, return water tank and electric control system, the constant temperature water supply case is provided with water pipe and is connected with the water inlet of water pump, the outlet of water pump connects after the pressurizing vessel and tested calorimeter, proving flowmeter, return water tank connects the pipeline that constitutes a detection usefulness by water pipe, standard thermometer is located in constant temperature water supply case and the return water tank, electrical control division is arranged with the heated at constant temperature module, the water pump driver module, temperature collect module, normal flow acquisition module and guidance panel, temperature collect module comprise the collection of thermostatically controlled temp, the collection of the standard temperature of constant temperature water supply case and return water tank; It is characterized in that also being provided with in the described signal piping refrigeratory, described electric part also comprises CPU (central processing unit) and display, and CPU (central processing unit) is provided with thermostatically-controlled equipment, pump control unit, temperature storage device, flow memory storage, heat Calculation device, heat storage device, demarcation pick-up unit, demarcates and detect record memory storage and display drive apparatus; The contrast operation result that the constant temperature water supply oven temperature, degree that thermostatically-controlled equipment collects according to the desired temperature and the temperature collect module of guidance panel input carries out carries out the work of heated at constant temperature module or stops; Pump control unit is according to the steering order of guidance panel input, carries out the work of water pump driver module or stops; Constant temperature water supply case standard temperature that temperature storage device storing temperature acquisition module collects and return water tank standard temperature, the normal flow data that flow memory device stores flow collection module collects, the heat Calculation device is according to the data of flow memory storage, the data of temperature storage device are carried out the heat criterion calculation, and the heat standard figures is stored in the standard heat storage device, demarcate the flow of pick-up unit according to the tested calorimeter that receives, temperature, the numerical value of heat and aforesaid normal flow, standard temperature, the standard heat compares, and calculates the correction factor that calorimeter is demarcated usefulness; Display drive apparatus sends to display with corresponding data content through driver module according to the input instruction of guidance panel.
2, calorimeter according to claim 1 is demarcated checkout equipment automatically, it is characterized in that described equipment also is provided with electronic scales, described water pump is a variable frequency pump, and described normal flow is counted the proving flowmeter of a plurality of specifications, and the entrance point of each flowmeter is provided with solenoid valve; Described electric part also is provided with pump variable frequency driver module, printer, Weight acquisition module and carries out the communication module of exchanges data with tested intelligent calorimeter; Described CPU (central processing unit) also is provided with weight memory storage, print control unit, pump variable frequency drive unit, carries out the communicator of exchanges data with tested intelligent calorimeter; The Weight acquisition module is sent to the weight memory storage with the weight data of electronic scales, and the pump variable frequency driver module is controlled variable frequency pump according to the control signal of pump variable frequency drive unit; Print control unit is sent to printer according to the input instruction of guidance panel with the data of printing; Described communicator receives flow, temperature and the thermal data that tested intelligent calorimeter sends, and the correction factor that described demarcation pick-up unit is calculated is sent to tested intelligent calorimeter.
3, calorimeter according to claim 1 and 2 is demarcated checkout equipment automatically, it is characterized in that described equipment also is provided with the recirculated water solenoid valve that recirculated water utilizes pipeline and this pipeline to be provided with.
4, calorimeter according to claim 1 and 2 is demarcated checkout equipment automatically, it is characterized in that demarcating also being provided with automatic meter-clamping apparatus and sealed attachment pipe on the monitor station.
5, calorimeter according to claim 3 is demarcated checkout equipment automatically, it is characterized in that demarcating also being provided with automatic meter-clamping apparatus and sealed attachment pipe on the monitor station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200758890U CN201003994Y (en) | 2006-08-31 | 2006-08-31 | Automatic marking and detection device for heat meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200758890U CN201003994Y (en) | 2006-08-31 | 2006-08-31 | Automatic marking and detection device for heat meter |
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| Publication Number | Publication Date |
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| CN201003994Y true CN201003994Y (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006200758890U Expired - Fee Related CN201003994Y (en) | 2006-08-31 | 2006-08-31 | Automatic marking and detection device for heat meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288331A (en) * | 2010-06-18 | 2011-12-21 | 徐州润物科技发展有限公司 | Heat meter verifying device |
| CN103424212A (en) * | 2013-08-23 | 2013-12-04 | 青岛盘古电气有限公司 | Ultrasonic calorimeter calibration system and calibration method |
| CN105371927A (en) * | 2015-11-13 | 2016-03-02 | 杭州中沛电子有限公司 | Meter clamping apparatus with self-locking device |
| CN105890718A (en) * | 2014-12-03 | 2016-08-24 | 杭州派乐科技有限公司 | Portable multi-channel flow totalizer field calibrator and control circuit thereof |
| CN106153161A (en) * | 2016-08-30 | 2016-11-23 | 泉州七洋机电有限公司 | A kind of instrument detection device |
| CN107131978A (en) * | 2017-06-13 | 2017-09-05 | 中标能效科技（青岛）有限公司 | The caliberating device and scaling method of commercial circulation heat pump water heater test device |
| CN107621315A (en) * | 2017-09-05 | 2018-01-23 | 天津市电力科技发展有限公司 | Check method during a kind of on-line operation intelligent calorimeter |
-
2006
- 2006-08-31 CN CNU2006200758890U patent/CN201003994Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288331A (en) * | 2010-06-18 | 2011-12-21 | 徐州润物科技发展有限公司 | Heat meter verifying device |
| CN103424212A (en) * | 2013-08-23 | 2013-12-04 | 青岛盘古电气有限公司 | Ultrasonic calorimeter calibration system and calibration method |
| CN103424212B (en) * | 2013-08-23 | 2015-09-16 | 青岛盘古电气有限公司 | Ultrasonic calorimeter calibration system and calibration steps |
| CN105890718A (en) * | 2014-12-03 | 2016-08-24 | 杭州派乐科技有限公司 | Portable multi-channel flow totalizer field calibrator and control circuit thereof |
| CN105890718B (en) * | 2014-12-03 | 2023-01-13 | 杭州派乐科技有限公司 | Portable multi-channel flow integrating instrument field calibrator and control circuit thereof |
| CN105371927A (en) * | 2015-11-13 | 2016-03-02 | 杭州中沛电子有限公司 | Meter clamping apparatus with self-locking device |
| CN105371927B (en) * | 2015-11-13 | 2018-06-19 | 杭州中沛电子有限公司 | A kind of meter-clamping apparatus with self-locking device |
| CN106153161A (en) * | 2016-08-30 | 2016-11-23 | 泉州七洋机电有限公司 | A kind of instrument detection device |
| CN106153161B (en) * | 2016-08-30 | 2023-05-12 | 泉州七洋机电有限公司 | Instrument detection device |
| CN107131978A (en) * | 2017-06-13 | 2017-09-05 | 中标能效科技（青岛）有限公司 | The caliberating device and scaling method of commercial circulation heat pump water heater test device |
| CN107131978B (en) * | 2017-06-13 | 2023-04-25 | 中标能效科技（青岛）有限公司 | Calibration device and calibration method for commercial circulating heat pump water heater testing device |
| CN107621315A (en) * | 2017-09-05 | 2018-01-23 | 天津市电力科技发展有限公司 | Check method during a kind of on-line operation intelligent calorimeter |
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