CN202210005U

CN202210005U - Full-automatic heat meter flow calibrating installation

Info

Publication number: CN202210005U
Application number: CN2011202976180U
Authority: CN
Inventors: 蔡昕
Original assignee: Anhui Highwell Electronic Corp
Current assignee: Anhui Highwell Electronic Corp
Priority date: 2011-08-17
Filing date: 2011-08-17
Publication date: 2012-05-02
Anticipated expiration: 2021-08-17

Abstract

The utility model discloses a fully automatic heat meter flow calibration device, including a water circulation system, a data acquisition system and a control system. The water circulation system includes a thermostatic water tank outlet, a water pump, a pressure regulating tank, a water inlet valve, a meter to be tested, a flow meter, a flow regulating device, an observation window, a water collecting tank, a drain valve and a water inlet of the thermostatic water tank which are connected in sequence. A heater is arranged in the thermostatic water tank. The data acquisition system includes a multifunctional hub, a centralized meter reader, a temperature sensor, a pressure transmitter and an electronic scale. The meter to be tested and the flow meter are both connected to the centralized meter reader through the multifunctional hub. The control system includes a computer, an intelligent controller and a frequency converter. The heater, the temperature sensor, the pressure transmitter and the frequency converter are all connected to the intelligent controller. The intelligent controller, the centralized meter reader and the electronic scale are all connected to the computer. The utility model has a simple structure, realizes the automatic control of the heat meter flow calibration, reduces the cost and the error rate, and improves the calibration efficiency and accuracy.

Description

Full-automatic heat energy surface low amount calibrating installation

Technical field

The utility model relates to the heat meter calibration facility field, specifically is a kind of full-automatic heat energy surface low amount calibrating installation.

Background technology

In building energy conservation plan, the increase that the demand of heat energy table is rapid are listed the heat metering charge by nation-building portion.Enterprise must be according to country's " heat energy table " calibrating regulation in the process of producing the heat energy table, and each heat energy table all need carry out performance test and correction; The quality supervision department of various places need be examined and determine various heat energy table, and qualified heat energy table just can be installed and used.Therefore the verification process of heat energy table is a link important and consuming time in the whole process of production; But the heat meter calibration facility of some enterprises research and development at present needs a large amount of manual works to participate in, such as manual metering, address, calculating and revision parameter and the artificial valve etc. that opens and closes are set.The device of a large amount of manual interventions of this needs, the low and easy error of efficient has seriously restricted heat energy table calibrating efficient and production capacity.Enterprise also attempts to address these problems, tries hard to realize automation process in each link, and the constant current amount automatic control system of the heat meter calibration facility of mentioning like patent 200310106717.6, but can't realize whole verification process robotization.

The utility model content

The technical matters that the utility model will solve provides a kind of full-automatic heat energy surface low amount calibrating installation, solves existing heat energy table calibrating complicated operation, inefficient problem.

The technical scheme of the utility model is:

Full-automatic heat energy surface low amount calibrating installation; Comprise water circulation system; Water circulation system includes the water inlet of the constant temperature water tank water delivering orifice, water pump, buffer tank, water intaking valve, seized table, flowmeter, flow regulator, view window, header tank, draining valve and the constant temperature water tank that are communicated with successively; Be provided with well heater in the constant temperature water tank; Flow regulator comprises outlet valve and the manual modulation valve that is communicated with successively; Full-automatic heat energy surface low amount calibrating installation also includes data acquisition system (DAS) and control system, and data acquisition system (DAS) comprises multi-functional hub, centralized automatic meter-reading device, be arranged at temperature sensor in the constant temperature water tank, be arranged at the pressure unit on the buffer tank and be arranged at the electronic scales of header tank bottom, and described seized table all is connected with the centralized automatic meter-reading device through multi-functional hub with flowmeter; Control system comprises computing machine, intelligent controller and the frequency converter that is connected with water pump; Described well heater, temperature sensor, pressure unit and frequency converter all are connected with intelligent controller, and described intelligent controller, centralized automatic meter-reading device, electronic scales all are connected with computing machine.

Described full-automatic heat energy surface low amount calibrating installation also includes pneumatic system; Pneumatic system comprises air pump, the solenoid valve that is connected with air pump and tong-test ammeter device; The pilot piping of solenoid valve is connected with the outlet valve of water intaking valve, flow regulator respectively; The tong-test ammeter device is connected with seized table, and solenoid valve is connected with described intelligent controller.

Described flow regulator comprises three adjustings of large, medium and small flow pipeline; Low discharge is regulated pipeline and is included first manual modulation valve and first outlet valve that is interconnected; Middle flow regulation pipeline includes second manual modulation valve and second outlet valve that is interconnected; Big flow regulation pipeline includes the 3rd manual modulation valve and the 3rd outlet valve that is interconnected; First outlet valve, second outlet valve and the 3rd outlet valve all are communicated with flowmeter, and first manual modulation valve, second manual modulation valve and the 3rd manual modulation valve all are communicated with view window.

The advantage of the utility model:

(1), adopt data acquisition system (DAS) to gather the flow value of seized table and flowmeter, the force value of buffer tank and the flow value that electronic scales reads; Adopt multi-functional hub and centralized automatic meter-reading device to carry out the flow value collection of seized table and flowmeter; Its image data is accurate, and the data of all seized tables all can be read by the centralized automatic meter-reading device through a multi-functional hub;

(2), control system sets control to each checkout equipment in the heat energy surface low amount calibrating installation, thereby realize whole control, its control method is simple, calls the controlled variable that presets through computing machine, just can accomplish the calibrating of heat energy surface low amount automatically and revises.

Description of drawings

Fig. 1 is the structured flowchart of the utility model; Wherein, On behalf of the water route, "

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Embodiment

One, see Fig. 1, full-automatic heat energy surface low amount calibrating installation comprises water circulation system, data acquisition system (DAS), control system, pneumatic system;

Water circulation system includes the water inlet of constant temperature water tank 1 water delivering orifice, water pump 2, buffer tank 3, water intaking valve 4, seized table 5, flowmeter 6, flow regulator, view window 13, header tank 14, draining valve 16 and the constant temperature water tank 1 that are communicated with successively; Be provided with well heater 17 and temperature sensor 18 in the constant temperature water tank 1; Flow regulator comprises three flow regulation pipelines of large, medium and small flow; Low discharge is regulated pipeline and is included first manual modulation valve 7 and first outlet valve 8 that is interconnected; Middle flow regulation pipeline includes second manual modulation valve 9 and second outlet valve 10 that is interconnected; Big flow regulation pipeline includes the 3rd manual modulation valve 11 that is interconnected and the 3rd outlet valve 12, the first outlet valves 7, second outlet valve 9 and the 3rd outlet valve 11 all are communicated with flowmeter 6, and first manual modulation valve 8, second manual modulation valve 10 and the 3rd manual modulation valve 12 all are communicated with view window 13;

Data acquisition system (DAS) comprises multi-functional hub 19, centralized automatic meter-reading device 20, be arranged at the pressure unit 21 on the buffer tank and be arranged at the electronic scales 15 of header tank bottom, and seized table 5 all is connected with centralized automatic meter-reading device 20 through multi-functional hub 19 with flowmeter 6;

Control system comprises computing machine 23, intelligent controller 22 and the frequency converter 24 that is connected with water pump 2; Well heater 17, temperature sensor 18, pressure unit 21 and frequency converter 24 all are connected with intelligent controller 22, and intelligent controller 22, centralized automatic meter-reading device 20, electronic scales 15 all are connected with computing machine 23;

Pneumatic system comprises air pump 27, the solenoid valve 26 that is connected with air pump 27, the tong-test ammeter device 25 that is connected with solenoid valve 26; Tong-test ammeter device 25 is connected with seized table 5; Water intaking valve 4, first outlet valve 7, second outlet valve 9, the 3rd outlet valve 11 all are connected with solenoid valve 26, and solenoid valve 26 is connected with intelligent controller 22.

Two, the installation steps of the utility model:

(1), at first build water supply loop, constant temperature water tank 1 is installed for the loop provides hot water in the water supply loop, constant temperature water tank 1 coated outside insulation material; Well heater 17 and temperature sensor 18 are placed in the inside, and water pump 2 water inlet ends connect constant temperature water tank 1, and the water side connects buffer tank 3 middle and lower parts; And be connected with frequency converter 24 on the water pump 2, setting pressure transmitter 21 on the buffer tank 3, buffer tank 3 bottoms connect seized table 5 through water intaking valve 4; Seized table 5 is divided into 2 groups, table with show between connect, every group of seized table side is equipped with tong-test ammeter device 25; Tong-test ammeter device of air 25 connects air pump 27 through solenoid valve 26; When tong-test ammeter device 25 valve opens, seized table 5 is clamped rapidly, and seized table 5 is released during tong-test ammeter device 25 valve closings; Seized table 5 exit installation code flowmeter 6 is as reference table, and the water route after the proving flowmeter 6 is divided into 3 the tunnel, respectively corresponding flow measurement points: big flow, middle flow and low discharge; Each signal piping is equipped with manual modulation valve and outlet valve; Wherein, when measuring a certain flow, open corresponding pipeline, other pipeline is closed; 3 pipelines merge into one the tunnel afterwards; The end of pipeline connects header tanks 14 through view window 13, and header tank 14 is placed on the electronic scales 15, can calculate actual flow (this device employing mass method) according to the indicating value of electronic scales 15; Header tank 14 links to each other with constant temperature water tank 1 through draining valve 16 and forms the water supply loop of a closure, and water intaking valve 4, first outlet valve 7, second outlet valve 9 all are connected with air pump 27 through solenoid valve 26 with the 3rd outlet valve 11;

(2), data acquisition system (DAS) and control system are set on water supply loop; At first multi-functional hub 19 is connected with seized table 5, flowmeter 6 through connection or infrared read/write head, the communication gating of multi-functional hub 19 seized tables 5 of control and flowmeter 6; Multi-functional hub 19 and centralized automatic meter-reading device 20 are connected through data line; Pressure unit 21, the frequency converter 24 that is connected with water pump 2, solenoid valves 26 connections in well heater 17 in intelligent controller 22 and the constant temperature water tank 1 and temperature sensor 18, the buffer tank 3; Water temperature and the water in 17 pairs of constant temperature water tanks 1 of control heater that intelligent controller 22 is measured in the constant temperature water tank 1 through temperature sensor 18 carry out heated at constant temperature control; Pressure unit 21 flows to intelligent controller 22 with the force value in the buffer tank 3 simultaneously; The size of intelligent controller 22 control of conversion devices 24; The flow of frequency converter 25 and then control water pump 2 makes constant pressure in the buffer tank 3 to guarantee water flow and constant pressure in the pipeline; Solenoid valve 26 and air pump 27 link to each other through pipeline, the switching of open and-shut mode control water intaking valve through control electromagnetic valve 26 4, first outlet valve 7, second outlet valve 9 and the 3rd outlet valve 11; Intelligent controller 22, electronic scales 15, centralized automatic meter-reading device 20 are connected communication with computing machine 23 respectively more then; Computing machine 23 can carry out integral body control to the equipment that is connected on the intelligent controller 22; Computing machine 23 can read the weight data that records on the electronic scales 15 and obtains the normal stream value; And multi-functional seized table 5 of hub 19 gatings of may command and flowmeter 6, read the flow value of seized table 5 and flowmeter 6 through centralized automatic meter-reading device 20.

Three, the use principle of the utility model:

The user opens main control software, and computing machine 23 PORT COMs are set, seized table 5 of gating and flowmeter 6, and it is that three flow points are measured automatically that detection mode is set, and temperature spot is 50 degree, and measuring number of times is 1 time, clicks to begin to measure.The robotization pick-up unit is at first closed water intaking valve 4, empties header tank 14 (electronic scale 15 indicating values are near 0), closes draining valve 16 then; After waiting for that electronic scales 15 indicating values are stable, read the initial value of electronic scales 15 and seized table 5, open then water intaking valve 4 with first outlet valve 7, close second outlet valve 9 and the 3rd outlet valve 11, control of conversion device 24, assurance discharge is stablized constant voltage; Computing machine 23 is gathered seized table 5, flowmeter 6 and electronic scales 15 indicating values in real time during the measurement, after total flow reaches settings, closes water intaking valve 4; After waiting for that electronic scales 15 indicating values are stable, read the end value of electronic scales 15 and seized table 5, present flow rate point detects and finishes; Repeat above-mentioned steps and open and close different outlet valves to measure two other flow point.Main control software calculates seized table 5 error according to standard value and measured value, if error is excessive, then seized table 5 is revised, otherwise is explained that seized table is qualified.

Claims

1. Fully automatic heat meter flow verification device, including a water circulation system, the water circulation system includes a water outlet of a constant temperature water tank, a water pump, a pressure stabilizing tank, a water inlet valve, a meter to be tested, a flow meter, a flow adjustment device, an observation window, The water inlet of the water collection tank, the drain valve and the constant temperature water tank, the constant temperature water tank is equipped with a heater, and the flow regulating device includes a water outlet valve and a manual regulating valve connected in sequence. It is characterized in that: the automatic heat meter flow verification device also includes data acquisition system and control system, the data acquisition system includes a multifunctional hub, a centralized meter reading device, a temperature sensor installed in a constant temperature water tank, a pressure transmitter installed on a pressure stabilizing tank, and an electronic scale installed at the bottom of the water collection tank. The inspected meter and flow meter are connected to the centralized meter reading device through a multi-functional hub; the control system includes a computer, an intelligent controller and a frequency converter connected to the water pump, and the heater, temperature sensor, pressure transmitter and frequency conversion The devices are all connected with the intelligent controller, and the intelligent controller, the centralized meter reading device and the electronic scale are all connected with the computer.

2. The full-automatic heat meter flow verification device according to claim 1, characterized in that: the full-automatic heat meter flow verification device also includes a pneumatic system, and the pneumatic system includes an air pump, a solenoid valve connected with the air pump, and a The meter clamping device connected to the solenoid valve, and the meter clamping device is connected to the meter under test, the solenoid valve is connected to the water inlet valve and the water outlet valve of the flow regulating device respectively, and the solenoid valve is connected to the intelligent controller.

3. The automatic heat meter flow verification device according to claim 1, characterized in that: the flow regulating device includes three test pipelines for large, medium and small flow, and the small flow regulating pipeline includes interconnected The first manual adjustment valve and the first water outlet valve, the medium flow adjustment pipeline includes the second manual adjustment valve and the second water outlet valve connected to each other, and the large flow adjustment pipeline includes the third manual adjustment valve and the second water outlet valve connected to each other Three water outlet valves, the first water outlet valve, the second water outlet valve and the third water outlet valve are all communicated with the flow meter, and the first manual adjustment valve, the second manual adjustment valve and the third manual adjustment valve are all communicated with the observation window.