CN203337293U - Heat consumer heat metering system suitable for household radiator heat distribution meter method based on reference room temperature - Google Patents

Abstract

A heat consumer heat metering system suitable for a household radiator heat distribution meter method based on reference room temperature relates to a household radiator heat distribution meter method based on reference room temperature. According to the utility model, the problem that position correction of heat is needed by a present heat metering method and actual service condition and model difference of radiators and inconsistency between radiator quantity and design will influence heat metering results is solved. By the utilization of the parameter gamma i of a building and equivalent radiators at the original state, heat metering result errors caused by room temperature difference during initial adjustment of a heating system are solved. By the utilization of equivalent heat characteristic parameter mu I of the building heat consumer heating system at actual service condition, energy consumption difference of heat consumers at different positions of a building is eliminated. Thus, the heat metering objective that users who share the same heating area and the same temperature within the same time in the same building pay the same heat fee is realized. The heat consumer heat metering system provided by the utility model is suitable for heat metering of a radiator heating system and a radiant floor heating system.

Description

Be applicable to hot user's heat measuring system of the family formula radiator heat allocation table method of benchmark room temperature

Technical field

The present invention relates to a kind of family formula radiator heat allocation table method of benchmark room temperature.

Background technology

The German just utilizes the evaporation-type heat radiator Heat distribution meter to measure the heating amount decades ago, the nineties in 20th century, evaporation-type heat radiator Heat distribution meter and electronic type radiator heat allocation table start application in some heat metering pilot buildings of China, and domestic in recent years also have some enterprises producing these two kinds of radiator heat allocation tables.

The heat metering of existing heat measuring system is all the method for utilizing the characteristic of heating radiator to share heat, can be divided into radiator heat allocation table method and equivalent heat distribution list method.

1. radiator heat allocation table method

Radiator heat allocation table method is that the calorimeter of measuring gross heat input is set at the consumer heat inlet place of every building, a radiator heat allocation table is set on every group of heating radiator of buildings, and the heat dissipation capacity of utilizing the radiator heat allocation table to measure every group of heating radiator in room accounts for the method that the ratio of a building gross heat input is shared heat.

Radiator heat allocation table method can be divided into two kinds of evaporative heat meter and electronic type allocation tables.According to the quantity of temperature sensor, electric heat allocator can be divided into three kinds of single-sensor, dual sensor and three sensors.

Radiator heat allocation table equipment is simple, initial cost is low, safeguards simple.But there is following problems:

(1) radiator heat allocation table method is to utilize heat dissipation capacity under rated condition of in laboratory heating radiator and the heat dissipation capacity relation under arbitrary condition, utilizes formula (1) to carry out heat distribution.

$Q_i=Q_{\mathrm{ni}}{\left(\frac{1}{{\mathrm{\Δt}}_{\ln }}\right)}^n{{\∫(t_p-t_n)}_i}^n\·\mathrm{d\τ}---\left(1\right)$

In formula, Q _nimean the specified heat dissipation capacity of heating radiator, unit is KWH;

^{△ t} _lnmean the logarithm temperature difference of heating radiator under rated condition, unit is ℃;

N means the heating radiator characteristic coefficient, n=1+b, and b means the heating radiator characteristic coefficient.

While adopting the radiator heat allocation table to carry out heat sharing, need to guarantee that in same solitary building, all hot users adopt the heating radiator (characteristic coefficient of heating radiator is identical) of same form, heating radiator is wanted bright dress, can not add heater cover, hot user curtain used can not block heating radiator.The habits and customs of this and China are not inconsistent.

(2) evaporative heat meter and single-sensor Heat distribution meter, when heat Calculation, are taken as benchmark room temperature t by room temperature _n=20 ℃, when this will cause hot user to open a window, the heat of the heating radiator that allocation table calculates is fewer than the heat of actual consumption.

(3) the radiator heat allocation table be take every group of heating radiator and is carried out heat metering as computing unit, and in buildings, metered quantity is large, needs the quantity of statistics heating radiator, and the workload of checking meter is large.And adopting the electronic type radiator heat allocation table with transporting function, the initial cost of instrument to increase, the serviceable life of battery is influenced.

(4) heat of radiator heating system can only be measured, the heat of floor heating system can't be measured.

(5) in buildings, the hot user of each diverse location is under identical room temperature, and the heat difference of measuring is larger.If the result charge according to metering, will bring serious unfairness.

2. equivalent heat distribution list method

Equivalence heat distribution list method is domestic emerging heat measuring method recent years.The method is not measured the Inlet and outlet water temperature of every group of heating radiator, but calculates by the Inlet and outlet water temperature of measuring the each household heating system ratio that heat that the each household heating radiator sheds accounts for a building gross heat input.

The equivalent heat distribution list method of current domestic research, mainly contain two kinds.

Method one: measure user's inflow temperature and leaving water temperature, room temperature is taken as to 20 ℃, according to formula (2), carry out heat Calculation.

$Q_i={\∫\mathrm{af}}_i{{(t_p-20)}_i}^{1+b}\·\mathrm{d\τ}\·---\left(2\right)$

Method two, measurement user inflow temperature, leaving water temperature and indoor temperature, carry out heat Calculation according to formula (3).

$Q_i=\∫{\mathrm{af}}_i{{(t_p-t_n)}_i}^{1+b}\·\mathrm{d\τ}\·---\left(3\right)$

Equivalence heat distribution list method, greatly reduce the quantity of the measurement instrument of every building, can realize easily the teletransmission of hot user's continuous data, is convenient to the computing machine unified management.But still there is following problems:

(1), do not solve the requiring in same solitary building of radiator heat allocation table method, all hot users adopt the heating radiator (characteristic coefficient of heating radiator is identical) of same form, heating radiator is wanted bright dress, can not add heater cover, and hot user curtain used can not block the heating radiator problem.

(2), do not have the equivalent heat distribution list method of set temperature sensor, do not solve the hot user problem that the heat of the heating radiator that brought allocation table calculates reduces that opens a window.

(3) quantity that, needs the statistics heating radiator.The variation of each hot user's actual radiator area heating radiator characteristic coefficients of bringing different from the radiator area of design, thus cause the heat of sharing larger error to occur.

(4) while, not eliminating the heating system initial adjustment, the error that the room temperature difference is brought heat metering result.

(5) the heat difference that, in buildings, the hot user of each diverse location measures under identical room temperature is larger.If the result charge according to metering, will bring serious unfairness.

At present the residential architecture of China is mostly apartment class building, be badly in need of that a kind of principle of invention is correct, equipment is simple, cheap, meet the new heat measuring method that China's handling characteristics requires.

Summary of the invention

The objective of the invention is for a kind of hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature of the design of Building Heat user horizontal system, carry out position correction with the caloric requirement that solves current heating radiator allocation table method and the metering of equivalent heat distribution list method, heating radiator actual service conditions difference, heating radiator model difference, heating radiator quantity and different design are to the influential problem of heat metering result.

The hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature comprises heat trade settlement table, feed pipe, return pipe, outdoor temperature sensor computing machine and M data collecting unit, described heat trade settlement epi-position is in total feed pipe and the return pipe place of the heating system of buildings, for measuring the whole heat supply heat of buildings, outdoor temperature sensor is for measuring the environment temperature of buildings outside, M data collecting unit lays respectively in M heating unit of buildings, for all hot users of gathering each heating unit for dsc data, each data acquisition unit comprises that a cell data gathers display and a plurality of hot user's collecting unit, each hot user's collecting unit comprises one group of heating radiator, the room temperature acquisition controller, the return water temperature sensor, supply water temperature sensor and equalizing valve, described room temperature acquisition controller 3 is for gathering the indoor actual temperature of hot user, the return water temperature sensor is for the water temperature in one group of heating radiator return pipe, the supply water temperature sensor is for gathering the water temperature in described one group of heating radiator feed pipe, equalizing valve is connected on the return pipe of described one group of heating radiator, cell data gathers the temperature data that the display collection is positioned at all temperature sensors transmissions of same data acquisition unit, in M data collecting unit, M cell data collection display is connected with data transmission set by serial data bus with outdoor temperature sensor, the heat signal output terminal of heat trade settlement table is connected with the total amount of heat information input terminal of data transmission set, and data transmission set is the data interaction with computing machine for realization.

Also comprise motorized valve in above-mentioned each hot user's collecting unit, described motorized valve is connected on the feed pipe of one group of heating radiator, and cell data gathers the display collection and is positioned at the temperature data of all temperature sensors transmissions of same data acquisition unit, also sends motorized valve control signal to each motorized valve simultaneously.

The invention has the beneficial effects as follows:

The principal feature of hot user's heat measuring system of the present invention is, can be by hot user's the single household horizontal heating system formed by a plurality of heating radiators, with one group of equivalent radiator heating system, replace, measure the trade settlement heat of buildings by the trade settlement table, by temperature sensor measurement user's supply and return water temperature, indoor temperature and outdoor temperature, then adopt methodology to complete the heat metering of each household in buildings.

Adopt hot user's heat measuring system of the present invention can also realize adjustment and the control of hot user's room temperature:: when realizing the heat metering, can also realize adjustment and control to hot user's heating load, that is: according to hot user's demand, set indoor temperature, automatically adjust the heating load to corresponding hot user according to the temperature obtained in this setting indoor temperature and metering process, and then realize that the room temperature of adjusting and control this user reaches the purpose of setting room temperature.

Hot user's heat measuring system of the present invention is simple in structure, easy for installation, has reduced the construction progress of new building.Heat measuring system of the present invention can obtain on the basis of the heat measuring system of existing building in simple transformation, therefore also is applicable to the transformation to the existing structure heat measuring system.

The accompanying drawing explanation

Fig. 1 is the structural representation of the family formula radiator heat allocation table method system of benchmark room temperature of the present invention.

Embodiment

Embodiment one: present embodiment is described referring to Fig. 1.Present embodiment is described is that the hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature comprises heat trade settlement table 2, feed pipe 12, return pipe 13, outdoor temperature sensor 6, computing machine 14 and M data collecting unit, described heat trade settlement table 2 is positioned at total feed pipe and the return pipe place of the heating system of buildings, for measuring the whole heat supply heat of buildings, outdoor temperature sensor 6 is for measuring the environment temperature of buildings outside, M data collecting unit lays respectively in M heating unit of buildings, for all hot users of gathering each heating unit for dsc data, each data acquisition unit comprises that a cell data gathers display 7 and a plurality of hot user's collecting unit, each hot user's collecting unit comprises one group of heating radiator, room temperature acquisition controller 3, return water temperature sensor 4, supply water temperature sensor 5 and equalizing valve 8, described room temperature acquisition controller 3 is for gathering the indoor actual temperature of hot user, return water temperature sensor 4 is for the water temperature in one group of heating radiator return pipe, supply water temperature sensor 5 is for gathering the water temperature in described one group of heating radiator feed pipe, equalizing valve 8 is connected on the return pipe of described one group of heating radiator, cell data gathers the temperature data that display 7 gathers all temperature sensors transmissions that are positioned at same data acquisition unit, in M data collecting unit, M cell data collection display 7 is connected with data transmission set 1 by serial data bus with outdoor temperature sensor 6, the heat signal output terminal of heat trade settlement table 2 is connected with the total amount of heat information input terminal of data transmission set 1, and data transmission set 1 is the data interaction with computing machine 14 for realization.

In present embodiment, the all hot user who is arranged in the same heating unit of buildings is gathered to display 7 by a cell data and realize data acquisition and the transfer of controlling data, all cell datas gather displays 7 and are connected with data transmission device 1 by serial data bus, realize the gathering of data acquisition of whole solitary building.

Room temperature acquisition controller 3 is for gathering hot user's indoor actual temperature, and general the selection is arranged in hot user's representative room.

Heat after sharing sends back to collector display 7 by data transmission set and is shown.

The family formula radiator heat allocation table method of existing benchmark room temperature that adopts described computing machine 14 realizes the processing of hot continuous data, finally realizes hot user's heat metering.

Embodiment two: present embodiment is the further restriction to hot user's heat measuring system of the described family formula radiator heat allocation table method that is applicable to the benchmark room temperature of embodiment two, in present embodiment, also comprise motorized valve 9 in each hot user's collecting unit, described motorized valve 9 is connected on the feed pipe of one group of heating radiator, and cell data gathers display 7 and gathers the temperature data of all temperature sensors transmissions that are positioned at same data acquisition unit, also sends motorized valve control signal to each motorized valve 9 simultaneously.

Hot user, according to the demand of oneself, sets and needs the room temperature of controlling on room temperature acquisition controller 3; Room temperature acquisition controller 3 is according to hot user's setting, and automatic control electric moves valve 9, and room temperature is controlled to design temperature.

The described heating system of present embodiment can, for adopting the heating system of radiator heating, can be also the heating system of employing floor heating.

The signal transmission that the described temperature sensor of present embodiment and cell temperature gather between display can be wired transmission mode, can be also wireless transmission mode.

The signal transmission that the described cell temperature of present embodiment gathers between display can be wired transmission mode, can be also wireless transmission mode.

Signal transmission between the described trade settlement table of present embodiment and data transmission set can be wired transmission mode, can be also wireless transmission mode.

Signal transmission between the described data transmission set of present embodiment can be wired transmission mode, can be also wireless transmission mode.

The family formula radiator heat allocation table method of benchmark room temperature of the present invention is existing a kind of heat measuring method, and the hot measuring principle of the method is:

The single household horizontal heating system that any is comprised of N group heating radiator, use the equivalent radiator heating system be comprised of one group of continuous large heating radiator to replace.The heat dissipation capacity of equivalent radiator heating system can be expressed as

$Q_i=a_i{f}_i{{(t_p-t_n)}_i}^{B_i}/{({\mathrm{\β}}_1\·{\mathrm{\β}}_2\·{\mathrm{\β}}_3\·{\mathrm{\β}}_4)}_i---\left(4\right)$

Q in formula-equivalent heating radiator is supplied with the heat in room, KWH;

T _nmean indoor temperature, ℃;

T _pthe medial temperature that means the equivalent heating radiator, ℃;

F means the area of dissipation of equivalent heating radiator, m ²;

A, B mean equivalent heating radiator overall characteristic parameter, B=b+1;

I means Building Heat user's sequence number;

β ₁, β ₂, β ₃, β ₄be respectively the radiator panel load and count correction factor, heating radiator type of attachment correction factor, heating radiator installation form correction factor and heating radiator flow modificatory coefficient.

Concerning apartment class building, in same building, the hot user of diverse location is for maintaining same room temperature, and the heat by heating radiator to indoor supply does not wait, thereby brings the very big difference of interior each the hot user Re Fei of this type of building.For the heat that elimination apartment class building is brought due to the position difference is taken unfair problem, the heat that need to supply with each household to heating radiator by comprehensive correction factor is revised, finally reach the hot user in same solitary building, heating area is identical, within the identical time, identical temperature should be paid the heat metering target of identical heat expense.So following equation is arranged to be set up:

$\frac{q_1(1-{\mathrm{\α}}_1)}{F_1}=\·\·\·\·\·\·=\frac{q_i(1-{\mathrm{\α}}_i)}{F_i}=\·\·\·\·\·\·=\frac{q_n(1-{\mathrm{\α}}_n)}{F_n}---\left(5\right)$

In formula, α means the buildings comprehensive correction factor.

By formula (4) and formula (5), can be obtained

$\frac{a_1(1-{\mathrm{\α}}_1){(t_{p1}-t_{n1})}^{B_1}{f}_1}{{\mathrm{\β}}_{11}{\mathrm{\β}}_{21}{\mathrm{\β}}_{31}{\mathrm{\β}}_{41}{F}_1}=\·\·\·=\frac{a_i(1-{\mathrm{\α}}_i){(t_{\mathrm{pi}}-t_{\mathrm{ni}})}^{B_i}{f}_i}{{\mathrm{\β}}_{1i}{\mathrm{\β}}_{2i}{\mathrm{\β}}_{3i}{\mathrm{\β}}_{4i}{F}_i}=\·\·\·=\frac{a_n(1-{\mathrm{\α}}_n){(t_{\mathrm{pm}}-t_{\mathrm{nn}})}^{B_n}{f}_n}{{\mathrm{\β}}_{1n}{\mathrm{\β}}_{2n}{\mathrm{\β}}_{3n}{\mathrm{\β}}_{4n}{F}_n}---\left(6\right)$

Order:

${\mathrm{\μ}}_i=\frac{a_i(1-{\mathrm{\α}}_i)}{{\mathrm{\β}}_{1i}{\mathrm{\β}}_{2i}{\mathrm{\β}}_{3i}{\mathrm{\β}}_{4i}}$

Equivalent speed characterisitic parameter for Building Heat user heating system under actual service condition has:

$\frac{{\mathrm{\μ}}_1{(t_{p1}-t_{n1})}^{B_1}{f}_1}{F_1}=\·\·\·=\frac{{\mathrm{\μ}}_i{(t_{\mathrm{pi}}-t_{\mathrm{ni}})}^{B_i}{f}_i}{F_i}=\·\·\·=\frac{{\mathrm{\μ}}_n{(t_{\mathrm{pn}}-t_{\mathrm{nn}})}^{B_n}{f}_n}{F_n}---\left(7\right)$

Formula (7) shows, when buildings reaches thermal equilibrium, the unit area equivalent heat dissipation capacity of each hot user's radiator panel equates.That is to say, for the hot user's that eliminates each diverse location of buildings energy consumption difference, each household is supplied with to the correction of heat, be actually as making the correction of the fair heat dissipation capacity to the each household radiator panel of each hot user Re Fei.

When in a building, all cooling systems all are operated in thermal steady state, in the ideal situation, by the system initial adjustment, each hot user's room temperature equates and equals the average room temperature of buildings.Under virtual condition, initial adjustment can not be accomplished complete equipilibrium, and each hot user's room temperature exists certain difference.Suppose i hot user's indoor temperature t _nireach whole solitary building medial temperature

the time, its heating radiator medial temperature is from t _pibecome t ' _pi, formula (7) can be expressed as:

$\frac{{\mathrm{\μ}}_i{{(t_{\mathrm{pi}}^{\′}-\stackrel{\‾}{t_n})}_0}^{B_i}{f}_i}{F_i}=\frac{{\mathrm{\μ}}_j{{({t^{\′}}_{\mathrm{pj}}-\stackrel{\‾}{t_n})}_0}^{B_n}{f}_j}{F_j}---\left(8\right)$

Can obtain thus the heat that hot user i shares is

$Q_i=Q_z=\frac{{\mathrm{\μ}}_i{(t_{\mathrm{pi}}-t_{\mathrm{ni}})}^{B_i}{f}_i}{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{\μ}}_j{(t_{\mathrm{pj}}-t_{\mathrm{nj}})}^{B_j}{f}_j}=Q_z\frac{{(t_{\mathrm{pi}}-t_{\mathrm{ni}})}^{B_i}{F}_i}{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{(t_{\mathrm{pj}}-t_{\mathrm{nj}})}^{B_j}{F}_j\frac{{{({t^{\′}}_{\mathrm{pi}}-\stackrel{\‾}{t_n})}_0}^{B_i}}{{{({t^{\′}}_{\mathrm{pj}}-\stackrel{\‾}{t_n})}_0}^{B_j}}}---\left(9\right)$

Q in formula _zmean the trade settlement heat of trade settlement table metering, unit is KWH; J Building Heat user of lower footnote j.

Due to

$\begin{array}{c}{{({t^{\′}}_{\mathrm{pi}}-\stackrel{\‾}{t_n})}_0}^{B_i}=\frac{{\mathrm{\ΔT}}_0}{{\mathrm{\γ}}_i}\\ {{({t^{\′}}_{\mathrm{pj}}-\stackrel{\‾}{t_n})}_0}^{B_j}=\frac{{\mathrm{\ΔT}}_0}{{\mathrm{\γ}}_j}\end{array}---\left(10\right)$

In formula, γ means the constant relevant with buildings and equivalent heating radiator original state;

△ T ₀the table temperature difference of buildings under original state, unit is ℃.

Formula (9) becomes

$Q_i=Q_z\frac{{\mathrm{\γ}}_i{(t_{\mathrm{pi}}-t_{\mathrm{ni}})}^{B_i}{F}_i}{\underset{j=1}{\overset{n}{\∑}}{\mathrm{\γ}}_j{(t_{\mathrm{pj}}-t_{\mathrm{nj}})}^{B_j}{F}_j}---\left(11\right)$

Formula (11) is the heat sharing formula of the family formula radiator heat allocation table method of benchmark room temperature.

Formula (11) shows, as long as measure supply water temperature, return water temperature and the indoor temperature of each household, just can measure the equivalent heat that each household consumes, realize the hot user in same solitary building, heating area is identical, within the identical time, identical temperature should be paid the heat metering target of identical heat expense.

From principle of the present invention, realization of the present invention needs following three conditions:

(1) the inside and outside temperature of measuring chamber;

(2) measure hot user's supply and return water temperature;

(3) to measure the heating load of whole building.

Claims (5)

1. be applicable to hot user's heat measuring system of the family formula radiator heat allocation table method of benchmark room temperature, it is characterized in that, described system comprises heat trade settlement table (2), feed pipe (12), return pipe (13), outdoor temperature sensor (6), computing machine (14) and M data collecting unit, described heat trade settlement table (2) is positioned at total feed pipe and the return pipe place of the heating system of buildings, for measuring the whole heat supply heat of buildings, outdoor temperature sensor (6) is for measuring the environment temperature of buildings outside, M data collecting unit lays respectively in M heating unit of buildings, for all hot users of gathering each heating unit for dsc data, each data acquisition unit comprises that a cell data gathers display (7) and a plurality of hot user's collecting unit, each hot user's collecting unit comprises one group of heating radiator, room temperature acquisition controller (3), return water temperature sensor (4), supply water temperature sensor (5) and equalizing valve (8), described room temperature acquisition controller (3) is for gathering the indoor actual temperature of hot user, return water temperature sensor (4) is for the water temperature in one group of heating radiator return pipe, supply water temperature sensor (5) is for gathering the water temperature in described one group of heating radiator feed pipe, equalizing valve (8) is connected on the return pipe of described one group of heating radiator, cell data gathers the temperature data that display (7) collection is positioned at all temperature sensors transmissions of same data acquisition unit, in M data collecting unit, M cell data collection display (7) is connected with data transmission set (1) by serial data bus with outdoor temperature sensor (6), the heat signal output terminal of heat trade settlement table (2) is connected with the total amount of heat information input terminal of data transmission set (1), and data transmission set (1) is the data interaction with computing machine (14) for realization.

2. the hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature according to claim 1, it is characterized in that, also comprise motorized valve (9) in each hot user's collecting unit, described motorized valve (9) is connected on the feed pipe of one group of heating radiator, and cell data gathers display (7) collection and is positioned at the temperature data of all temperature sensors transmissions of same data acquisition unit, also sends motorized valve control signal to each motorized valve (9) simultaneously.

3. the hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature according to claim 1, it is characterized in that, the signal transmission that described temperature sensor and cell temperature gather between display is wired transmission mode or wireless transmission mode.

4. the hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature according to claim 1, is characterized in that, the signal transmission that described cell temperature gathers between display is wired transmission mode or wireless transmission mode.

5. the hot user's heat measuring system that is applicable to the family formula radiator heat allocation table method of benchmark room temperature according to claim 1, it is characterized in that, the signal transmission between described trade settlement table and data transmission set is wired transmission mode or wireless transmission mode.

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