CN101839521B - A real-time heat distribution device - Google Patents

Abstract

The invention discloses a real-time heat apportionment device, which is based on building heat metering and on-off time area method, and is characterized in that it includes a building total heat meter, a building heat apportionment device and at least two sets of temperature-controlled heat exchangers. The number of temperature-controlled heat distribution meters is the same as the total number of heat users in the building to be measured and allocated; the total heat meter of the building and the building heat distribution device are respectively installed at the entrance of the building or the heat entrance, and the heat of the building The distribution device is connected to the total heat meter of the building through the data communication line, and connected to the power supply through the power cable. The temperature-controlled heat distribution meter is installed separately and connected to the temperature controller through the signal line. The M-BUS bus is connected to the building heat sharing device; the building heat sharing device is provided with an integrated circuit and a microprocessor, and the user's real-time heat sharing calculation software is installed in the microprocessor.

Description

A real-time heat distribution device

technical field

The invention relates to central heating metering technology, which belongs to the field of HVAC. Specifically, it is a real-time heat distribution system based on building heating metering and on-off time and area method. Central heating users can read and understand its The heat consumption that should be apportioned.

Background technique

With the continuous improvement of the country's requirements for building energy conservation and the reform of the heating charging system, various heating metering methods and their matching heat metering or heat metering instruments have emerged and have been applied to a certain extent. In the "Technical Regulations for Heat Supply Metering JGJ173-2009" promulgated by the Ministry of Housing and Urban-Rural Development and implemented on July 1, 2009, a user heat allocation measurement method of "on-off time area method" is given. This method is based on the cumulative water supply time of each heating user when the on/off heating control mode (Q-type system) is adopted, combined with the heating area to share the heating heat consumption of the entire building, so as to calculate the heat consumption of each heating user. Heating heat consumption, and heat metering charge. The heat metering (heat apportionment) device matched with this method only needs to count and record the on-off time of each household on-off control valve. Compared with other types of household heat meters before, this device does not need to measure the indoor The flow rate of the heating fluid. At present, there are some heating room temperature control and heat metering (sharing) devices based on the on-off control mode (Q-type system), and they have been practically applied in engineering. Chinese patent 02237727.1 discloses an IC card intelligent heat meter that can automatically control room temperature, and Chinese patent 03242120.6 discloses an intelligent heat meter that integrates measurement and room temperature control. The heat measurement of these two heat meters is still based on measuring the heating fluid The heat is measured by the difference between the flow rate and the temperature difference between the supply and return water. Chinese patent 200610114686.2 discloses a method for simultaneously realizing heat regulation and heat metering, and Chinese patent 200910069672.7 discloses a heat apportionment metering method and device for centralized heating. However, in actual engineering use, the above-mentioned heating heat allocation calculation method based on building heating metering and on-off time area method is to record the heating on-off working time of heat users and measure the total heat consumption of the building. The calculation of heating energy consumption of each heating user is completed on the host computer, and heating users cannot know their own heating energy consumption at any time, which causes inconvenience in charging management and may also cause charging disputes. The above-mentioned heating heat distribution calculation method and device (system) based on building heating metering and on-off time area method have problems including: 1. The on-off control valves or indoor thermostats installed by households are only used to send Or receive the room temperature control and setting signal to realize the on-off control of the on-off valve. The user end can display the heating on-time of the user or the opening time ratio of the valve, but the heat consumption of the user cannot be displayed, and the user cannot understand the heating in real time. Heat consumption; 2. According to the algorithm of the on-off valve opening time ratio, the on-off valve opening time ratio of the heat user changes discontinuously and irregularly. When the heat user reads his own valve opening time ratio, he often finds that the The ratio changes irregularly, and the ratio read on the current day may be smaller than the day before yesterday, and it will become larger tomorrow, which leads to misunderstanding or distrust of heat users; 3. At present, the products can only provide on-off control valves for heat users The accumulative turn-on time, and the heat cost depends on the final calculation. Even if the accumulative turn-on time of heat users in different buildings is the same, it does not mean that the heat consumption is the same, leading to misunderstandings or charging disputes among heat users.

Contents of the invention

In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a real-time heat apportionment device, which is based on building heat metering and on-off time area method, and uses a building total heat meter for a certain set time period The measured value and the corrected opening time ratio of the on-off valve of each heat user are used as the calculation basis, and the heating heat consumption of each heat user is apportioned in real time, and the heat consumption of the heat user is transmitted to the terminal of the heat user through the data communication cable (apportioned heat Table), to realize the display and reading of real-time heat consumption by heat users. It is easy for heat users to understand their own heating heat consumption, to understand consumption, and to facilitate the payment and collection of heat fees. It has better applicability and is easy to promote and use in practice. .

The technical solution of the present invention to solve the technical problem of the device is to design a real-time heat sharing device, based on building heat metering and on-off time area method, characterized in that it includes a building total heat meter, a building Heat sharing device and at least 2 sets of temperature-controlled heat distribution meters, the number of temperature-controlled heat distribution meters is the same as the total number of heat users in the building to be measured and distributed; the total building heat meter and building heat distribution device mentioned above They are respectively installed at the entrance of the building or at the entrance of the heat power. The heat meter of the building is installed on the heating return water or water supply pipeline. The heat sharing device is connected to the total heat meter of the building through the data communication line, and connected to the power supply through the power cable; the temperature-controlled heat distribution meter is installed on the water supply or return water pipeline of the household entrance, and its thermostat is installed on the In the household room, the temperature-controlled heat distribution meter is connected to the thermostat through the signal line, and all the temperature-controlled heat distribution meters are connected to the building heat distribution device through the data communication line; the building heat distribution device is equipped with an integrated Circuit and microprocessor, the microprocessor is installed with user real-time heat apportionment calculation software, the software regularly reads the heat measured by the building heat meter, and the opening and closing valves of each heat user recorded by each temperature-controlled heat allocation meter Time ratio, use the on-off time area method to calculate the heating apportioned heat of each heat user in the timing period, and accumulate it with the heat consumption of heat users in the previous cycle to obtain the cumulative heating heat consumption of each heat user, and then through the data communication line The final cumulative heat value is sent to the temperature-controlled heat allocation table of each heat user for storage and display; at the same time, the calculated final cumulative heating heat consumption value of each heat user is also stored in the building heat sharing device, and heat users can pass through the building. The display screen of the building heat apportionment device understands the heating consumption of all heat users; the building heat apportionment device communicates with the computer used for heating metering data management and charge management through wireless or GPRS mode, and the management department can use the meter reading software. The computer reads the heating heat consumption data of all heat users stored in the building heat apportionment device, and carries out charging management.

Compared with the prior art, the real-time heat sharing device of the present invention can effectively solve the problems existing in the current "on-off time area method" heat metering method (device):

1. At present, the on-off control valves or indoor thermostats installed by households cannot display the heat consumption of users, and users cannot understand the heat consumption of heating in real time, which is inconvenient to use. The real-time heat apportionment device of the present invention can display the cumulative heating heat consumption of heat users on the temperature-controlled heat distribution table in real time through real-time data communication and calculation, and provide heating heat consumption data for heat users, so that heat users can understand consumption.

2. The real-time heat apportionment device of the present invention solves the problem of misunderstanding or disputes caused by only displaying the opening time ratio of the on-off valve. Users can know the heat consumption of heating in real time and calculate their own heating costs.

3. The real-time heat apportionment device of the present invention displays in real time the accumulative heating energy consumption of heat users on the temperature-controlled heat distribution meter installed in each household, and at the same time displays the cumulative heating energy of each heat user in a cycle on the heat apportionment device installed in each building Heat consumption, which is convenient for managers or heat users to understand the heating heat consumption of all heat users, so as to achieve fair and transparent heating charges.

4. The real-time heat apportionment device of the present invention can use wireless or GPRS for data transmission, communicate with computer data for heat metering data management and charging management, and centralize meter reading, data management and charging management.

5. The real-time heat apportionment device of the present invention has an anti-sabotage function through a built-in program, which can automatically detect the operating status, automatically alarm when a fault occurs, and use a distribution algorithm to punish man-made damage to the household device, which is convenient for strengthening heat supply management.

6. The real-time heat apportionment device of the present invention is convenient and reliable in operation, simple in installation, long in life, low in cost, more acceptable to heat users, easy to popularize and implement household metering of heat supply, and conducive to energy saving.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure or system of the installation embodiment of the real-time heat apportionment device of the present invention.

Fig. 2 is a block diagram of the real-time heat allocation calculation software built into the building heat allocation device in the real-time heat allocation device of the present invention.

Detailed ways

The present invention is further described below in conjunction with embodiment and accompanying drawing thereof, and specific embodiment is only used for further description of the present invention, does not constitute the restriction to the claims of the present invention:

The real-time heat apportionment device (abbreviation device, referring to Fig. 1, 2) of the present invention design, is based on building heat metering and on-off time area method, is characterized in that it comprises a building total heat meter 3, a building heat meter Sharing device 4 and at least 2 sets of temperature-controlled heat distribution meters 1, the specific number of temperature-controlled heat distribution meters 1 is the same as the total number of heat users in the building measured and distributed; the total building heat meter 3 and The building heat apportionment device 4 is respectively installed at the entrance of the building or the heat inlet, the building heat meter 3 is installed on the water supply pipeline 10 for building heating, and the building heat appropriation device 4 is installed in the building meter cell or On the wall at an appropriate location in the building, the building heat sharing device 4 is connected to the building heat meter 3 through the power line 7 and the data communication line 8 respectively, and is connected to the power supply through the power cable 13; the temperature-controlled heat distribution meter 1 It is installed separately with the indoor thermostat 2, and the two are connected by signal cables. The temperature-controlled heat distribution meter 1 is installed on the household water supply pipeline or return water pipeline, and all the temperature-controlled heat distribution meters 1 are connected through the M-BUS bus 9 It is connected with the building heat sharing device 4; the building heat sharing device 4 is provided with an integrated circuit and a microprocessor. The microprocessor is equipped with user's real-time thermal apportionment calculation software (see Fig. 2 for the software program block diagram), and the real-time thermal apportionment calculation software carries out hardware initialization when the building thermal apportionment device 4 starts to be powered on, and reads the building thermal meter 3. The measured heat is used as the initial value, and then enters the time cycle (30 minutes) to judge and calculate; when the cycle (30 minutes) ends, the software reads the heat measured by the building heat meter 3 through the M-BUS bus 9, and then reads Take the opening time ratio recorded in each temperature-controlled heat distribution table 1, calculate the heating apportioned heat of each heat user in the timing period (such as 30 minutes), and accumulate it with the heat consumption of each heat user in the previous cycle respectively, and obtain each The cumulative heating heat consumption of the thermal users; then through the M-BUS bus 9, the final cumulative heat value of each thermal user is sent to the temperature-controlled heat distribution table 1 of each thermal user for storage and display; at the same time, the calculated final cumulative heat value of each thermal user The heating heat consumption value is also stored in the building heat allocation device 4, and the heat user can know the heating heat consumption of all heat users through the display screen of the building heat allocation device; when the program receives the command from the host computer, it performs command analysis and command processing, Remotely transmit data such as cumulative heat consumption and open time ratio of each heat user to the data center (central computer for heat metering data management and charge management).

A further feature of the sharing device of the present invention is that the building heat sharing device 4 can communicate with the computer 5 used for heating metering data management and charging management through wireless or GPRS mode; etc.) can read all the heat user heating heat consumption data stored in the building heat apportionment device 4 through the computer 5 and meter reading software, and carry out charging management.

The building heat meter 3 installed on the building or the thermal inlet in the apportioning device of the present invention includes an electromagnetic heat meter, an ultrasonic heat meter or an ultrasonic vortex heat meter. Building heat meter 3 is prior art product. The data communication line is M-BUS data bus or 485 data bus.

The innovation of the present invention is mainly that the building heat apportionment device 4 regularly (periodically) reads the heat measured by the building heat meter, and the on-off valve opening time ratio (supply and return water temperature) recorded by the temperature-controlled heat distribution meter 1 Corrected opening time ratio), use the on-off time area method to calculate the heat allocation calculation in this cycle through the built-in special allocation calculation program, calculate the heating allocation heat of each heat user, and accumulate it with the heat consumption of the heat user in the previous cycle, The cumulative heating heat consumption of each heat user is obtained, and then the final cumulative heat value is sent to the temperature-controlled heat distribution table 1 of each heat user for storage and display through the data communication line (M-BUS bus). The temperature-controlled heat distribution meter 1 reads its own heating heat consumption. Simultaneously, the calculated final cumulative heating heat consumption value of each heat user is also stored in the building heat apportionment device 4, and the heat user can also know the heating heat consumption of all heat users through the display screen of the building heat apportionment device 4, and the management department ( Thermal power companies, property management companies, etc.) can read all the heat consumption data of heating users stored in the building heat apportionment device 4 by computer through meter reading software, and carry out charging management. The innovation of the device of the present invention is to realize the real-time communication among the total heat meter 3 of the building, the heat distribution device 4 of the building and all the temperature-controlled heat distribution meters 1, and design the integrated circuit of the heat distribution device 4 of the building And the built-in apportionment calculation program of the microprocessor realizes the real-time apportionment calculation (fixed cycle) of the user's heating heat consumption, and the temperature-controlled heat distribution table 1 installed in each household displays and records (stores) the heating heat consumption of the heat user, which is convenient for the user Understand heat consumption and avoid charge management disputes.

Building heat distribution device 4 of the present invention is connected with mains power supply network through power line 13 (power supply is connected from building distribution box or convenient power supply interface), adopts mains power supply to supply power. The building heat sharing device 4 is equipped with a rectifier circuit and a battery as the power supply of the device of the present invention, and supplies power to the building heat meter and the temperature-controlled heat distribution meter installed in each household through the power cable or the M-BUS bus.

The working principle process of the device (or system) of the present invention is: in a certain time step (time interval cycle), the temperature-controlled heat distribution table installed by each household records the opening time of the on-off control valve of the heat user in this cycle, and At the same time, the temperature sensor measures the temperature value of the water supply and return water when the user uses heat, calculates the corrected opening time hourly according to the built-in special correction calculation program, and then calculates the corrected opening ratio (the ratio of the corrected cumulative opening time to the total time of the cycle); The building heat meter measures the total heat consumption of the building heating within the time period; when the time step (time period) ends, the building heat sharing device reads the building heating measured by the building heat meter through the data communication bus. The total heat consumption, as well as the corrected opening ratio of each heat user's temperature-controlled heat allocation table, calculate the apportioned heat value of each heat user in this time period through the built-in calculation program according to the on-off time area method, and compare it with the heat value in the previous cycle. User calorific values are accumulated; after the calculation is completed, the building heat apportionment device records the accumulative apportioned calorific value of each heat user, and at the same time sends it to the temperature-controlled heat allocation meter terminal of each heat user through the data communication cable, and the temperature of each heat user The control-type heat allocation table stores and displays the cumulative heat value, which is convenient for heat users to read; according to the needs, the heating heat consumption management software of the central computer can copy the heat consumption recorded by the building heat distribution device at any time through wireless or GPRS mode. Data, which is convenient for charge management and system fault inspection and processing.

What is not mentioned in the present invention is applicable to the prior art.

Claims (3)

1. real-time heat sharing device; Based on Lou Dongre metering and make-and-break time area-method; It is characterized in that it comprises a building total heat meter, building heat sharing device and at least 2 cover Temperature Control Type Heat distribution meters, the hot total number of users in Temperature Control Type Heat distribution meter quantity and the building shared of measure is identical; Described building total heat meter and Lou Dong heat sharing device are installed in Lou Dong inlet or consumer heat inlet place respectively, and a building heat sharing device is connected with a building total heat meter through data communication line, is connected with power supply through feed cable; Described Temperature Control Type Heat distribution meter is installed in the water supply or water return pipeline of branch family inlet; It is indoor that its temperature controller is installed in the branch family; The Temperature Control Type Heat distribution meter is connected through holding wire with temperature controller, and all the Temperature Control Type Heat distribution meter is connected with a building heat sharing device through data communication line; Be provided with integrated circuit and microprocessor in the described building heat sharing device; User real time heat is installed in the microprocessor shares software for calculation; This software timing reads the heat that a building heat meter is measured; And each hot user's on-off valve opening time ratio of each Temperature Control Type Heat distribution meter record, each the hot user heating that adopts the make-and-break time area-method to calculate in this timing cycle is shared heat, and adds up with hot user's heat consumption in last cycle; Draw each hot user's accumulation heating heat consumption, through data communication line final heat history value is sent to each hot user's storage of Temperature Control Type Heat distribution meter and demonstration then; Simultaneously, the hot user of each that calculates finally accumulates heating heat dissipation value and also is stored in the building heat sharing device, and hot user can understand whole hot users' heating heat consumption through a building heat sharing device display screen.

2. real-time heat sharing device according to claim 1 is characterized in that this sharing device is connected through wireless or GPRS mode communication with the computer that is used for heat metering data management and toll administration; Administrative department can read the whole hot user heating heat consumption data of a building heat sharing device storage through the computer and the software of checking meter, and carries out toll administration.

3. real-time heat sharing device according to claim 1 and 2 is characterized in that a described building total heat meter is electromagnetism calorimeter, ultrasonic calorimeter or ultrasonic vortex street calorimeter; Described data communication line is M-BUS data/address bus or 485 data/address bus.

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