CN103104949A - Heat metering method, system and heat metering device - Google Patents
Heat metering method, system and heat metering device Download PDFInfo
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- CN103104949A CN103104949A CN2011103592712A CN201110359271A CN103104949A CN 103104949 A CN103104949 A CN 103104949A CN 2011103592712 A CN2011103592712 A CN 2011103592712A CN 201110359271 A CN201110359271 A CN 201110359271A CN 103104949 A CN103104949 A CN 103104949A
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Abstract
The invention provides a heat metering method, a system and a heat metering device which are used in a central heating system. The method comprises that presetting is carried out on a flow quantity entering each family by utilizing of a motor-driven control valve to enable the flow quantity entering each family to be kept in a range of a set flow quantity, wherein the motor-driven control valve is arranged in an inlet of a heat supply pipeline of each family and has a function of flow quantity presetting. The presetting set flow quantity is obtained according to area of each family and a designed flow quantity. The motor-driven control valve on-off state is controlled according to comparison between room temperature and setting temperature of each family, and on-off time is recorded. Heat shared by each family is calculated according to the heat displayed by a calorimeter installed in an entrance of each unit or each apartment, the area of each family and recorded on-off time of each family.
Description
Technical field
The present invention relates to the HVAC technology, be specifically related to a kind of heat measuring method, system and heat metering device.
Background technology
In existing central heating system, Thermal Corp often needs to calculate the apportioned heat in each family, thereby according to the heat sharing at each family, each user is carried out charging.Yet there is serious waterpower imbalance problem in present central heating system, thereby causes confession heat flow that the user obtains and user's area not to become corresponding relation.Such as, in theory, the user that area is little should obtain the little flow of the large user of specific area.Yet its resistance of user that sometimes area is little is little, therefore in fact but obtains larger flow because its resistance is little, shares on the contrary less heat within the identical opening time.Therefore, cause the heat metering inaccurate, and then cause the heat metering between the user unfair.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of heat measuring method, system and heat metering device, can overcome the problem that the waterpower imbalance is brought.
According to the embodiment of the present invention, the heat measuring method that is used for central heating system comprises the following steps:
The motor-operated control valve with the flow preset functions that utilization is arranged on each household heat supply pipeline porch presets the flow that enters each household, remain on the setting flow so that enter the flow of each household, the setting flow that wherein presets draws according to area and the design discharge of each household;
According to the contrast of room temperature and each household design temperature, control the break-make of described motor-operated control valve, and record make-and-break time; With
Make-and-break time according to the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records calculates the heat that each household is shared
According to further embodiment of this invention, the heat measuring system that is used for central heating system comprises: electronic control, family temperature controller and family control module with flow preset functions; Wherein,
Described motor-operated control valve is arranged on the heat supply pipeline porch of each household, is used for the flow that enters each household is presetted, and remains on the setting flow so that enter the flow of each household, and the setting flow that wherein presets draws according to area and the design discharge of each household;
Described family temperature controller be used for to receive design temperature and measures indoor temperature, and according to the contrast sending valve gate open break signal of indoor temperature and design temperature;
Described family control module, communicate by letter with temperature controller with described family with described motor-operated control valve, be used for sending described valve make-and-break signal to described motor-operated control valve, record the make-and-break time of described motor-operated control valve, send the make-and-break time record to each unit or the building data acquisition of locating a transmission computing unit, transmit computing unit according to the make-and-break time of the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records by described data acquisition, calculate the heat that each household is shared
According to further embodiment of this invention, heat metering device is used for central heating system, this system's each household heat supply pipeline porch installation has the motor-operated control valve of flow preset functions and the flow of described motor-operated control valve presets, and described heat metering device comprises:
Receiver module be used for to receive room temperature, design temperature and the area of each household, receives the calorie value of the calorimeter that is arranged on each unit or Lou Dong porch;
The break-make control module is used for producing the valve make-and-break signal according to the contrast of room temperature and design temperature, sends described valve make-and-break signal and arrives described motor-operated control valve, controlling the break-make of described motor-operated control valve, and records the make-and-break time of described motor-operated control valve;
Computing module is used for the calorie value according to described calorimeter, and the area of each household, and the make-and-break time of the each household that records of described break-make control module calculate the heat that each household is shared;
Sending module is used for the heat that each household is shared is sent to the far-end control centre of described central heating system
Can see thus, in the embodiment of the present invention, motor-operated control valve be carried out flow preset, make the flow that enters each household remain on and set on flow, thereby overcome the unbalanced problem of waterpower.And the setting flow that presets is that area and the design discharge according to each household draws, and therefore makes the heating demand that satisfies the resident family of different area by the flow of motor-operated control valve.
Description of drawings
Fig. 1 is the heat measuring method flow chart of the embodiment of the present invention;
Fig. 2 is the heat measuring system composition diagram of the embodiment of the present invention;
Fig. 3 is the central heating system composition diagram that has used the heat measuring system of the embodiment of the present invention;
Fig. 4 is the heat measuring method schematic diagram in conjunction with central heating system shown in Figure 3;
Fig. 5 is the heat metering device schematic diagram of the embodiment of the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The embodiment of the present invention provides a kind of heat measuring method, is used for central heating system.As shown in Figure 1, this heat measuring method comprises the following steps:
In step 101, the motor-operated control valve with the flow preset functions that utilization is arranged on each household heat supply pipeline porch presets the flow that enters each household, remain on the setting flow so that enter the flow of each household, the setting flow that wherein presets draws according to area and the design discharge of each household.
In motor-operated control valve being carried out the process that flow presets, because remaining on, the flow that enters each household sets on flow, and the setting flow that presets is that area and the design discharge according to each household draws, therefore can be so that the flow by motor-operated control valve remain on the setting flow substantially, and can satisfy the heating demand of the resident family of different area.
In step 102, according to the contrast of room temperature and each household design temperature, control the break-make of motor-operated control valve, and record make-and-break time.
In this step, can receive design temperature and measure indoor temperature with temperature controller by the family.The family can and send the valve make-and-break signal controlling the break-make of motor-operated control valve according to the comparing calculation of predetermined control strategy and room temperature and design temperature with temperature controller, thus the indoor temperature of control resident family.At this, resident family can arrange design temperature by the family with temperature controller according to the needs of oneself, perhaps can provide design temperature to the family temperature controller by Thermal Corp.
In step 103, the make-and-break time according to the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records calculates the heat that each household is shared.
After completing heat sharing and calculating, can also print and send bill, perhaps directly the wireless mode electronic equipment that is sent to the user directly shows, so that the user can be known the heat consumption of oneself in real time.
In heat measuring method shown in Figure 1, because the motor-operated control valve that adopts has the flow preset functions, thereby can the flow that enter each family be presetted, can guarantee that the flow that enters each household remains on the setting flow, thereby can realize hydraulic equilibrium.And this setting flow is that area and the design discharge according to each household draws, the corresponding relation that becomes to fix with area, and can according to the break-make of design temperature and room temperature-controlled valve, therefore can satisfy the heating demand of different resident families.
In the central heating system of reality, due to the pressure-difference fluctuation of heat supply trunk line, the flow during each user's valve opening all changes, and is not a metastable value.For this reason, therefore the motor-operated control valve of the embodiment of the present invention is designed with the pressure reduction automatic balancing structure, and above-mentioned heat measuring method can also comprise: motor-operated control valve carries out automatic pressure-difference balancing and controls to keep constant flow by motor-operated control valve when heat supply trunk line pressure-difference fluctuation; And/or described motor-operated control valve has the differential pressure security function, to guarantee described electric two-way valve normal switch.Due to the automatic pressure-difference balancing structure of motor-operated control valve, thus the flow that the pressure-difference fluctuation that can guarantee the heat supply trunk line can not affect valve when opening at every turn, thus keep constant flow by valve.In addition, therefore the differential pressure security structure that has due to valve inner the mistake that situation that the excessive valve of pressure reduction do not close causes can not occur and share, and has increased the reliability of heat measuring method.
In addition, existing heat measuring method is not considered privately to change because of heat radiation end original design unreasonable (such as the radiator type selecting is excessive or too small etc.) or user the heat radiation end-equipment such as radiator and is caused and share offset issue.And, existing heat measuring method can't be judged some faults, work leads to errors, sent as controller the instruction that valve-off stops heating, and valve for some reason (as excessive in pressure reduction, that interior leakage etc. is arranged) cause not closing fully, the user is still at consumption of calorie, and system can not identify, and treats by empty calory consumption.In order to address this problem, the heat measuring method of the embodiment of the present invention can also comprise: measure the water supply of each household and the temperature of backwater, and according to the temperature of water supply and backwater and the heat of sharing for the each household that the temperature difference correction of backwater is calculated, and/or in conjunction with temperature and the temperature difference of water supply and backwater, central heating system is managed.Due to the temperature of having considered water supply and backwater, can monitor and analyze central heating system, can help for heat unit, user's situation to be carried out judgement and the analysis of intelligence, in time remove fault or correction, guarantee the correctness of sharing.
Such as, Thermal Corp can set the upper limit for the temperature difference of backwater, in conjunction with the temperature difference for backwater, described central heating system is managed to comprise following several situation:
1) when not sending the instruction of closing motor-operated control valve, namely when valve normal operation and when being in opening state, if supply and return water temperature difference is normal, such as greater than certain upper limit etc., determine that central heating system occurs abnormal, and prompting heat supply side checks.For example, when user's supply water temperature normal, and the temperature difference is bigger than normal, greater than the upper limit 1, illustrate that the user may increase the heat radiation end privately, this heat measuring method can go out abnormal and report to the police by automatic decision, and prompting checks for heat unit, if the user has increased area of dissipation, can carry out the temperature correction.Again for example, user's supply water temperature is normal or on the low side, and the temperature difference is bigger than normal, greater than the upper limit 2, illustrates that may there be obstruction in this resident family, and automatic decision goes out abnormal and reports to the police.The upper limit 1 herein and the upper limit 2 can be drawn by Thermal Corp's design.
2) when sending the instruction of closing motor-operated control valve, if the poor appearance of supply and return water temperature is abnormal within a period of time, greater than certain setting value, determine that motor-operated control valve breaks down, and does not disconnect such as still.Under normal circumstances, if valve closing, supply and return water temperature trend should be more and more lower and be tending towards 0, and monitoring result to be supply and return water temperature keep certain temperature difference always, illustrate that valve do not shut, need to again send out code or failsafe valve needs maintenance.
This shows, above-mentioned heat measuring method not only can solve the hydraulic equilibrium problem, improve fairness and the accuracy of heat metering, can also monitor and analyze central heating system, can help for heat unit, user's situation to be carried out judgement and the analysis of intelligence, in time remove fault or correction, guarantee the correctness of sharing.
The embodiment of the present invention has also proposed a kind of heat measuring system.As shown in Figure 2, heat measuring system 20 comprises: have the electronic control 201 of flow preset functions, family temperature controller 202 and family control module 203.Wherein, motor-operated control valve 201 is arranged on the heat supply pipeline porch of each household, be used for the flow that enters each household is presetted, remain on the setting flow so that enter the flow of each household, the setting flow that wherein presets draws according to area and the design discharge of each household; The family is used for receiving design temperature and measures indoor temperature with temperature controller 202, and according to the contrast sending valve gate open break signal of indoor temperature and design temperature; Family control module 203, it is communicated by letter with temperature controller 202 with the family with motor-operated control valve 201, be used for sending valve gate open break signal to motor-operated control valve 201, record the make-and-break time of motor-operated control valve 201, send the make-and-break time record to each unit or the building data acquisition of locating a transmission computing unit 30, transmit computing unit 30 according to the make-and-break time of the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records by data acquisition, calculate the heat that each household is shared.
According to the embodiment of the present invention, motor-operated control valve 201 can have the pressure balance structure, carries out automatic pressure-difference balancing and control to keep constant flow by motor-operated control valve 201 when heat supply trunk line pressure-difference fluctuation; And/or, have the differential pressure security structure, be used for motor-operated control valve 201 is carried out differential pressure security, guarantee the normal open and close of motor-operated control valve 201.
In embodiments of the present invention, the family can comprise the Temperature Setting module with temperature controller 202, be used for to receive the design temperature of resident family's input or receives the design temperature that far-end control centre sends.
In embodiments of the present invention, the family can be wireless device with temperature controller 202, can be placed on resident family indoor.Data acquisition transmits heat that computing unit 30 can also share the each household that calculates and uses control module 203 to send to the family by the family to show with temperature controller 202, so that own apportioned heat is known in resident family, far-end control centre can also further be sent to so that the heat supply situation in each building is understood by Thermal Corp.Wherein, far-end control centre can be center-control and the data acquisition center of central heating system, can transmit computing unit 30 by unit or a building data acquisition of locating and communicate by letter with controlling computer center 203 with the family of each household, the whole central heating system of unified management.
According to one embodiment of the invention, this heat measuring system can also comprise supply water temperature sensor and return water temperature sensor, is respectively used to measure supply water temperature and the return water temperature of each household, and supply water temperature and return water temperature are sent to family control module 202; The family also is used for supplying water with control module 202 and the temperature of backwater, and/or sends to data acquisition transmission computing unit 30 and far-end control centre for the temperature difference of backwater; Data acquisition transmits computing unit 30 and revises according to supply backwater temperature difference the heat that each household is shared, and/or far-end control centre manages central heating system in conjunction with water supply and return water temperature and supply backwater temperature difference.
Fig. 3 is the central heating system composition diagram that has used the heat measuring system of the embodiment of the present invention, and Fig. 4 is the schematic diagram in conjunction with the heat measuring method of central heating system shown in Figure 3.
As shown in Figure 3, this central heating system comprises: radiator, the family in heat measuring system shown in Figure 2 temperature controller, motor-operated control valve and family control module, supply water temperature sensor and return water temperature sensor, the data acquisition of unit/building transmits computing unit, and far-end control centre.In Fig. 3, motor-operated control valve has been selected family dynamic equilibrium control valve, can realize that flow presets, the function such as pressure reduction autobalance and differential pressure security.Far-end control centre can be center-control and data acquisition center shown in Figure 3, and unit/building data acquisition transmission computing unit that its central data collection by wherein transmits computing unit and is positioned at each unit or building is communicated by letter with control module with the family of each household.In central heating system shown in Figure 3, family temperature controller, family dynamic equilibrium control valve, supply water and the return water temperature sensor, the family control module, and can communicate by wireless mode between far-end control centre, therefore can conveniently transform the central heating system of each household.Certainly, also can adopt the wire communication mode, such as new building can just carry out the wiring of central heating system when building design, disturb and inconvenience and can not bring to resident family.
In heat measuring method shown in Figure 4, can to shown in the family carry out flow with the dynamic equilibrium control valve and preset remain on the setting flow so that enter the flow of each household, the setting flow that wherein presets draws according to area and the design discharge of each household.The family receives design temperature and measures room temperature with temperature controller, according to the contrast generation family valve make-and-break signal of room temperature and design temperature, and design temperature and room temperature and family is sent to the family control module with the valve make-and-break signal.The family is issued family dynamic equilibrium control valve with the family with the valve make-and-break signal with control module, thereby controls the break-make of motor-operated control valve, and records make-and-break time.The family can also be from for backwater sensor collection water supply and return water temperature with control module, and sends to the data acquisition of unit/building to transmit computing unit and center-control and data acquisition center the make-and-break time of water supply and return water temperature, room temperature and design temperature and record.The data acquisition of unit/building transmits computing unit collecting unit/building heat from unit/building calorimeter, calculates according to the make-and-break time of the heating area of unit/building heat, each household and the each household that records the heat that each household is shared.The data acquisition of unit/building transmits a computing unit also according to supplying water and temperature and the supply backwater temperature difference of backwater are revised the heat that each household is shared, and the heat that the heat that the each household that calculates is shared or revised each household are shared sends to family use temperature controller and center-control and data acquisition center.Center-control and data acquisition center can also be according to room temperature and the design temperatures of resident family, and the information such as the temperature of the situation of paying the fees of resident family and combination water supply and backwater and supply backwater temperature difference manage central heating system.Such as, when the non-payment heat cost of certain resident family, center-control and data acquisition center can carry out central temperature limiting to resident family, such as the design temperature that reduces resident family etc.For another example, when central temperature limiting is inoperative, can also send the valve cut-off signal to the family control module, control the family by the family with control module and disconnect with the dynamic equilibrium control valve, stop heating.
As can be seen from the above embodiments, heat measuring method provided by the invention and system can solve the problem that prior art exists well, can realize fair heat sharing, and cost is low, and install and transform conveniently.And, having adopted the central heating system of this heat measuring method and system, can manage whole central heating system more efficiently.
In above embodiment, realize with controlling a computing unit and unit/building data acquisition transmission computing unit that together valve passage is controlled and the heat metering with temperature controller, family by the family.In practical application, also can be concentrated by same equipment and realize controlling and the heat metering.The embodiment of the present invention also provides a kind of heat metering device.Heat metering device 50 as shown in Figure 5 is used for central heating system, and the motor-operated control valve 201 that the each household heat supply pipeline porch installation of central heating system has the flow preset functions comprises:
Break-make control module 502 is used for producing the valve make-and-break signal according to the contrast of room temperature and design temperature, and sending valve gate open break signal is to motor-operated control valve, with the break-make of control motor-operated control valve, and records the make-and-break time of motor-operated control valve;
The root a tree name embodiment of the present invention, receiver module 501 also are used for receiving the supply and return water temperature of each household.Computing module 503 also is used for calculating supply backwater temperature difference, the heat that utilizes supply water temperature and return water temperature and supply backwater temperature difference correction user to share, and/or, by sending module 504, supply water temperature and return water temperature and supply backwater temperature difference are sent to the management that far-end control centre is used for central heating system.
Above-mentioned is only explanation to embodiment of the present invention, rather than restriction.
Claims (10)
1. a heat measuring method, be used for central heating system, it is characterized in that, comprises the following steps:
The motor-operated control valve with the flow preset functions that utilization is arranged on each household heat supply pipeline porch presets the flow that enters each household, remain on the setting flow so that enter the flow of each household, the setting flow that wherein presets draws according to area and the design discharge of each household;
According to the contrast of room temperature and each household design temperature, control the break-make of described motor-operated control valve, and record make-and-break time; With
Make-and-break time according to the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records calculates the heat that each household is shared.
2. heat measuring method as claimed in claim 1, is characterized in that, also comprises: measure the water supply of each household and the temperature of backwater, and revise according to temperature and the supply backwater temperature difference of water supply and backwater the heat that each household is shared; And/or, in conjunction with supplying water and temperature and the supply backwater temperature difference of backwater manage described central heating system.
3. heat measuring method as claimed in claim 1 or 2, is characterized in that, also comprises: described motor-operated control valve carries out automatic pressure-difference balancing and controls to keep constant flow by motor-operated control valve when heat supply trunk line pressure-difference fluctuation; And/or described motor-operated control valve has the differential pressure security function, to guarantee described electric two-way valve normal switch.
4. heat measuring method as claimed in claim 1 or 2, is characterized in that, the temperature of described combination water supply and backwater and the temperature difference of confession backwater manage described central heating system and comprise:
When not sending the instruction of closing motor-operated control valve, if when supply backwater temperature difference is abnormal, determines that central heating system occurs abnormal, and point out heat supply side to check;
When sending the instruction of closing motor-operated control valve, if when supply backwater temperature difference is abnormal within a period of time, determine that described motor-operated control valve breaks down, and does not disconnect.
5. a heat measuring system, be used for central heating system, it is characterized in that, comprising: electronic control, family temperature controller and family control module with flow preset functions; Wherein,
Described motor-operated control valve is arranged on the heat supply pipeline porch of each household, is used for the flow that enters each household is presetted, and remains on the setting flow so that enter the flow of each household, and the setting flow that wherein presets draws according to area and the design discharge of each household;
Described family temperature controller be used for to receive design temperature and measures indoor temperature, and according to the contrast sending valve gate open break signal of indoor temperature and design temperature;
Described family control module, communicate by letter with temperature controller with described family with described motor-operated control valve, be used for sending described valve make-and-break signal to described motor-operated control valve, record the make-and-break time of described motor-operated control valve, send the make-and-break time record to each unit or the building data acquisition of locating a transmission computing unit, transmit computing unit according to the make-and-break time of the area of the heat of the calorimeter that is arranged on each unit or Lou Dong porch, each household and the each household that records by described data acquisition, calculate the heat that each household is shared.
6. heat measuring system as claimed in claim 5, it is characterized in that, also comprise supply water temperature sensor and return water temperature sensor, be respectively used to measure supply water temperature and the return water temperature of each household, and supply water temperature and return water temperature are sent to described family control module;
Described family also is used for sending to data acquisition to transmit computing unit and far-end control centre described supply water temperature and return water temperature with control module; Described data acquisition transmits computing unit and revises according to supply water temperature and return water temperature and supply backwater temperature difference the heat that each household is shared, and/or described far-end control centre manages described central heating system in conjunction with supply water temperature and return water temperature and supply backwater temperature difference.
7. heat measuring system as described in claim 5 or 6, is characterized in that, described motor-operated control valve has the pressure balance structure, carries out automatic pressure-difference balancing and control to keep constant flow by described motor-operated control valve when heat supply trunk line pressure-difference fluctuation; And/or, have the differential pressure security structure, be used for described motor-operated control valve is carried out differential pressure security, guarantee the normal open and close of described motor-operated control valve.
8. heat measuring method as claimed in claim 7, is characterized in that, described family comprises the Temperature Setting module with temperature controller, be used for to receive the design temperature of resident family's input or receive the design temperature that far-end control centre sends.
9. heat metering device, be used for central heating system, it is characterized in that, the porch installation of described central heating system each household heat supply pipeline has the motor-operated control valve of flow preset functions and the flow of described motor-operated control valve presets, and described heat metering device comprises:
Receiver module be used for to receive room temperature, design temperature and the area of each household, receives the calorie value of the calorimeter that is arranged on each unit or Lou Dong porch;
The break-make control module is used for producing the valve make-and-break signal according to the contrast of room temperature and design temperature, sends described valve make-and-break signal and arrives described motor-operated control valve, controlling the break-make of described motor-operated control valve, and records the make-and-break time of described motor-operated control valve;
Computing module is used for the calorie value according to described calorimeter, and the area of each household, and the make-and-break time of the each household that records of described break-make control module calculate the heat that each household is shared;
Sending module is used for the heat that each household is shared is sent to the far-end control centre of described central heating system.
10. heat metering device as claimed in claim 9, is characterized in that, described receiver module also is used for receiving supply water temperature and the return water temperature of each household;
Described computing module also is used for calculating supply backwater temperature difference, the heat that utilizes described supply water temperature and return water temperature and described supply backwater temperature difference correction user to share, and/or, by described sending module, described supply water temperature and return water temperature and supply backwater temperature difference are sent to the management that far-end control centre is used for described central heating system.
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| CN103557556A (en) * | 2013-11-12 | 2014-02-05 | 洪莲 | Heat apportionment method and system of central heating system under on-off regulation mode |
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| CN108730596A (en) * | 2017-04-14 | 2018-11-02 | 北京华电滢欣科技有限公司 | A kind of multi-functional heat supply valve control method and device |
| CN110243016A (en) * | 2018-03-09 | 2019-09-17 | 江苏迈拓智能仪表有限公司 | A kind of constant current heating metering method |
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Application publication date: 20130515 |