CN204203968U - The online Energy Efficiency Analysis device of ventilation blower - Google Patents

Abstract

The utility model relates to the relevant device field of industrial ventilation blower, aims to provide the online Energy Efficiency Analysis device of ventilation blower.The online Energy Efficiency Analysis device of this ventilation blower comprises processor, ammeter and the sensor for gathering ventilation blower service data, Signal reception processing module and efficiency data computation module is built-in with in processor, Signal reception processing module is for receiving and the signal of processes sensor and ammeter output, and pass to efficiency data computation module by processing the data that obtain, the efficiency of data calculating ventilation blower of efficiency data computation module for utilizing Signal reception processing module and transmitting.The parameter that the utility model is imported and exported by sampling ventilation blower, carry out online efficiency to calculate and analyze, comprehensively can understand the ruuning situation of ventilation blower thus, thus obtaining the real time data of ventilator energy efficiency, guide field personnel carry out operation adjustment to improve ventilation blower operational efficiency better.

Description

The online Energy Efficiency Analysis device of ventilation blower

Technical field

The utility model is the relevant device field about industrial ventilation blower, particularly the online Energy Efficiency Analysis device of ventilation blower.

Background technology

Ventilation blower is widely used in factory, mine, tunnel, cooling tower, vehicle, the ventilation of boats and ships and buildings, dust discharge and cooling, the ventilation of boiler and Industrial Stoves and air inducing, the cooling in air conditioning equipment and domestic electric appliance and ventilation.Its efficiency weighs an important indicator of ventilation blower task performance height, the height of ventilation blower operational efficiency depends on the operating condition of ventilation blower to a great extent, if operating condition departs from high efficiency range, even if ventilation blower does not reach the effect of economical operation yet efficiently.Therefore, in line computation and the efficiency analyzing ventilation blower, guide field personnel carry out operation adjustment and seem particularly important to improve ventilation blower operational efficiency.

Technology not relevant in the market and product, the efficiency of usual analysis ventilation blower needs operating personnel to use the data such as multiple instrument manual measurement ventilation blower air quantity at various speeds, blast, electric current, and then the operational efficiency of ventilation blower is calculated according to the data recorded, so not only workload is large, and efficiency is low, cannot realize real-time online measuring.

In order to the energy resource consumption of ventilation blower can be reduced, to carry out calculating to the efficiency of ventilation blower and analyze first exactly.By carrying out real-time analysis to the efficiency of ventilation blower, grasp the running status of ventilation blower, the efficiency and Optimization Work tool improving ventilation blower is of great significance.

Utility model content

Fundamental purpose of the present utility model is to overcome deficiency of the prior art, to provide kind and can carry out to the efficiency of ventilation blower the device that calculates Yu analyze.For solving the problems of the technologies described above, solution of the present utility model is:

Thering is provided ventilation blower online Energy Efficiency Analysis device, for calculating the efficiency of ventilation blower, comprising processor, ammeter and the sensor for gathering ventilation blower service data;

Described processor is for realizing from the collection of parameter, being transferred to the digital control function controlling each link, and be built-in with Signal reception processing module and efficiency data computation module in processor, Signal reception processing module is connected with efficiency data computation module; Signal reception processing module refers to Signal reception treatment circuit, for receiving and the signal of processes sensor and ammeter output, and passes to efficiency data computation module by processing the data obtained; Efficiency data computation module refers to ventilator energy efficiency computing formula collection, and the data transmitted for utilizing Signal reception processing module calculate the efficiency of ventilation blower;

Described ammeter is arranged in the current supply circuit of motor in ventilation blower, and is connected with the Signal reception processing module in processor, and ammeter is for measuring power input to a machine;

Described sensor is at least provided with one, is arranged on ventilation blower respectively and imports and exports pipeline central authorities, and ensure not interfere with each other between sensor: sensor for measuring data when ventilation blower runs, and is connected with the Signal reception processing module in processor by transmitter.

As further improvement, the data when ventilation blower of described sensor measurement runs comprise: inlet temperature t _in, intake pressure p _in, outlet temperature t _out, top hole pressure p _out.

As further improvement, the online Energy Efficiency Analysis device of described ventilation blower also comprises display screen, and processor is connected with display screen by Industrial Ethernet, and display screen is for showing the real-time energy efficiency data of ventilation blower.

As further improvement, the product of the TP series that described display screen adopts Siemens Company to produce.

As further improvement, the online Energy Efficiency Analysis device of described ventilation blower also comprises the data storage device stored for data, and data storage device is connected with display screen by USB2.0 transmission mode.

As further improvement, described data storage device adopts portable hard drive.

As further improvement, described processor adopts general DDC controller (product of Excel 800 series that preferred Honeywell Inc. produces).

As further improvement, described ammeter adopts DSSD719-B type three-phase multifunctional electrical energy meter.

Based on the analytical approach of the online Energy Efficiency Analysis device of described ventilation blower, specifically comprise the steps:

(1) inlet temperature, intake pressure, outlet temperature, top hole pressure data when utilizing sensor collection ventilation blower to run, and through transmitter, the data of collection are passed to Signal reception processing module, ammeter gathers power input to a machine, and the data of collection are passed to Signal reception processing module:

(2) service data is passed to efficiency data computation module by Signal reception processing module, and service data comprises the data of sensor collection and the data of ammeter collection, and efficiency data computation module obtains the efficiency η of ventilation blower by following formulae discovery:

Δ p _k=p _out-p _in(formula 1)

${\mathrm{\ρ}}_{\mathrm{out}}=\frac{p_{\mathrm{inab}}}{275.2\×(273+t_{\mathrm{in}})}=\frac{p_{\mathrm{in}}+p_o}{275.2\×(273+t_{\mathrm{in}})}$ (formula 2)

$Q=k\·\sqrt{\frac{\mathrm{\Δ}{p}_k}{{\mathrm{\ρ}}_{\mathrm{out}}}}$ (formula 3)

${\mathrm{\γ}}_{\mathrm{in}}={\mathrm{\γ}}_o\·\frac{p_o+p_{\mathrm{in}}}{101325}\·\frac{293.15}{273.15+t_{\mathrm{in}}},{\mathrm{\γ}}_{\mathrm{out}}={\mathrm{\γ}}_o\·\frac{p_o+p_{\mathrm{out}}}{101325}\·\frac{293.15}{273.15t_{\mathrm{out}}}\·$ (formula 4)

$v_{\mathrm{in}}=\frac{Q}{F_{\mathrm{in}}},v_{\mathrm{out}}=\frac{Q}{F_{\mathrm{out}}}$ (formula 5)

$p_{\mathrm{din}}=\frac{v_{\mathrm{in}}^2}{2g}\·{\mathrm{\γ}}_{\mathrm{in}},p_{\mathrm{dout}}=\frac{v_{\mathrm{out}}^2}{2g}\·{\mathrm{\γ}}_{\mathrm{out}}$ (formula 6)

H _in=p _in+ p _din, H _out=p _out+ p _dout(formula 7)

H=H _out-H _in(formula 8)

$\mathrm{\η}=\frac{\mathrm{QH}}{1000P{\mathrm{\η}}_d{\mathrm{\η}}_t}\×100\%$ (formula 9)

Wherein, Q is ventilation blower exit gas flow, and unit symbol is m ³/ s:p ₀for local atmospheric pressure, unit symbol is Pa; K is coefficient of flow, gets 0.9 ~ 1.3 according to gas flow through ventilation blower inlet and outlet pressure loss size; γ _ofor air severe under standard state, unit symbol is N/m ³; γ _in, γ _outbe respectively ventilation blower import and export gas severe, the equal N/m of unit symbol ³; F _in, F _outbe respectively ventilation blower and import and export pipeline sectional area, unit symbol is m ²; v _in, V _outbe respectively ventilation blower and import and export gas flow rate, unit symbol is m/s; G is local gravitational acceleration, and unit symbol is m/s ²; p _din, p _doutbe respectively ventilation blower and import and export gas dynamic pressure, unit symbol is Pa; H _in, H _outbe respectively ventilation blower import, exit gas total head and total pressure of fan with H, unit symbol is Pa; P is the power input of fan motor, and unit symbol is W; η _d, η _t, η is respectively the operational efficiency of electric efficiency, motor-driven efficiency and ventilation blower, unit symbol is 1;

(3) the efficiency η of the ventilation blower calculated is passed to display screen display by processor again, and is stored in data storage device.

Principle of work of the present utility model: first, the intake condition (pressure, temperature) when being run by ventilation blower by processor, outlet parameter (pressure, temperature), ammeter data carry out gathering and processing.Secondly, utilize the efficiency computing formula of ventilation blower, gathered real time data is substituted into and calculates, obtain the real-time energy efficiency of ventilation blower.Finally, by gathered data and the efficiency calculated, show on a display screen, and be kept in data storage device.

Compared with prior art, the beneficial effects of the utility model are:

1, by the parameter of sampling ventilation blower import and export, carry out online efficiency to calculate and analyze, comprehensively can understand the ruuning situation of ventilation blower thus, thus obtain the real time data of ventilator energy efficiency, guide field personnel carry out operation adjustment to improve ventilation blower operational efficiency better.

2, adopt processor and display screen as main hardware platform, there is high reliability, adopt portable hard drive that ventilation blower history data can be made to obtain long-term preservation and record.

Accompanying drawing explanation

Fig. 1 is ventilation blower operational factor instrumentation plan of the present utility model.

Fig. 2 is that ventilator energy efficiency of the present utility model calculates schematic diagram.

Fig. 3 is ventilation blower of the present utility model online Energy Efficiency Analysis apparatus system block diagram.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:

The online Energy Efficiency Analysis device of ventilation blower in Fig. 3 comprises processor, ammeter, display screen, data storage device and the sensor for gathering ventilation blower service data, for calculating the efficiency of ventilation blower.

Processor is general DDC controller, for realizing from the collection of parameter, the digital control function being transferred to the links such as control, the product of Excel 800 series adopting Honeywell Inc. to produce: be built-in with Signal reception processing module and efficiency data computation module in processor, Signal reception processing module is connected with efficiency data computation module, Signal reception processing module refers to Signal reception treatment circuit, for receiving and the signal of processes sensor output, efficiency data computation module refers to ventilator energy efficiency computing formula collection, for calculating the efficiency of ventilation blower.Ammeter is connected with Signal reception processing module, and ammeter, for measuring power input to a machine, is arranged in the current supply circuit of motor, adopts DSSD719-B type three-phase multifunctional electrical energy meter.Sensor is connected to Signal reception processing module by transmitter, and sensor is for measuring inlet temperature t when ventilation blower runs _in, intake pressure p _in, outlet temperature t _out, top hole pressure p _outdata, are arranged on blower fan and import and export pipeline central authorities and ensure not interfere with each other.Processor is connected with display screen by Industrial Ethernet, and display screen is for showing the real-time energy efficiency data of ventilation blower.Data storage device is connected with display screen by USB2.0 transmission mode, and data storage device adopts portable hard drive to be used for realizing data and stores.

As shown in Figure 2, based on the analytical approach of the online Energy Efficiency Analysis device of above-mentioned ventilation blower, specifically comprise the steps:

(1) inlet temperature, intake pressure, outlet temperature, top hole pressure data when utilizing sensor collection ventilation blower to run, and through transmitter, the data of collection are passed to Signal reception processing module, ammeter gathers power input to a machine, and the data of collection are passed to Signal reception processing module; Specifically can with reference to figure 1, represent the parameter measurement amount required for ventilator energy efficiency calculating, comprise the power input of the intake pressure of ventilation blower, inlet temperature, top hole pressure, outlet temperature and fan motor, it is noted herein that requirements such as the equal demand fulfillment of all measurements such as sensor mounting location.

(2) service data is passed to efficiency data computation module by Signal reception processing module, and service data comprises the data of sensor collection and the data of ammeter collection, and efficiency data computation module calculates the efficiency η of ventilation blower by following step:

1) (unit is m to calculate the gas flow Q of ventilation blower ³/ s):

Gas-static difference imported and exported by ventilation blower

Δ p _k=p _out-p _in(formula 1)

In formula (1), p _out, p _inbe respectively the pressure of ventilation blower export and import, unit is Pa;

The gas density in ventilation blower exit is

${\mathrm{\ρ}}_{\mathrm{out}}=\frac{p_{\mathrm{in}}+p_o}{275.2\×(273+t_{\mathrm{in}})}$ (formula 2)

In formula (2), p _o, t _inbe respectively the local atmospheric pressure of ventilation blower and ventilation blower inlet temperature, unit symbol be respectively Pa, Pa and DEG C;

$Q=k\·\sqrt{\frac{\mathrm{\Δ}{p}_k}{{\mathrm{\ρ}}_{\mathrm{out}}}}$ (formula 3)

In formula (3), k is coefficient of flow, gets 0.9 ~ 1.3 according to the pressure loss size that gas flow is imported and exported through ventilation blower.

2) the gas total head H (unit is Pa) of ventilation blower is calculated

The expression formula that section gas severe imported and exported by ventilation blower is

${\mathrm{\γ}}_{\mathrm{in}}={\mathrm{\γ}}_o\·\frac{p_o+p_{\mathrm{in}}}{101325}\·\frac{293.15}{273.15+t_{\mathrm{in}}},{\mathrm{\γ}}_{\mathrm{out}}={\mathrm{\γ}}_o\·\frac{p_o+p_{\mathrm{out}}}{101325}\·\frac{293.15}{273.15t_{\mathrm{out}}}\·$ (formula 4)

In formula (4), γ _ofor air severe under standard state, unit symbol is N/m ³; t _outfor ventilation blower outlet temperature, unit symbol is DEG C;

Import and export profile cross-section according to ventilation blower to amass, obtain blower fan import and export section gas flow rate and be respectively

$v_{\mathrm{in}}=\frac{Q}{F_{\mathrm{in}}},v_{\mathrm{out}}=\frac{Q}{F_{\mathrm{out}}}$ (formula 5)

In formula (5), F _in, F _outbe respectively ventilation blower and import and export pipeline sectional area, unit symbol is m ²;

Ventilation blower is imported and exported section gas dynamic pressure and is expressed as

$p_{\mathrm{din}}=\frac{v_{\mathrm{in}}^2}{2g}\·{\mathrm{\γ}}_{\mathrm{in}},p_{\mathrm{dout}}=\frac{v_{\mathrm{out}}^2}{2g}\·{\mathrm{\γ}}_{\mathrm{out}}$ (formula 6)

In formula (6), g is local gravitational acceleration, and unit symbol is m/s ²;

The computing formula that gas total head imported and exported by ventilation blower is

H _in=p _in+ p _din, H _out=p _out+ p _dout(formula 7)

The then expression formula of total pressure of fan

H=H _out-H _in(formula 8);

3) operational energy efficiency of ventilation blower is calculated

The expression formula of ventilation blower operational efficiency is

$\mathrm{\η}=\frac{\mathrm{QH}}{1000P{\mathrm{\η}}_d{\mathrm{\η}}_t}\×100\%$ (formula 9)

In formula (9), P is the power input of fan motor, and unit symbol is W; η _d, η _t, η is respectively the operational efficiency of electric efficiency, motor-driven efficiency and ventilation blower, unit symbol is 1.

(3) the efficiency η of the ventilation blower calculated is passed to display screen display by processor again, and is stored in data storage device.

Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed in the utility model, all should think protection domain of the present utility model.

Claims (8)

1. the online Energy Efficiency Analysis device of ventilation blower, for calculating the efficiency of ventilation blower, is characterized in that, comprises processor, ammeter and the sensor for gathering ventilation blower service data;

Described processor is for realizing from the collection of parameter, being transferred to the digital control function controlling each link, and be built-in with Signal reception processing module and efficiency data computation module in processor, Signal reception processing module is connected with efficiency data computation module; Signal reception processing module refers to Signal reception treatment circuit, for receiving and the signal of processes sensor and ammeter output, and passes to efficiency data computation module by processing the data obtained; Efficiency data computation module refers to ventilator energy efficiency computing formula collection, and the data transmitted for utilizing Signal reception processing module calculate the efficiency of ventilation blower;

Described ammeter is arranged in the current supply circuit of motor in ventilation blower, and is connected with the Signal reception processing module in processor, and ammeter is for measuring power input to a machine;

Described sensor is at least provided with one, is arranged on ventilation blower respectively and imports and exports pipeline central authorities, and ensure not interfere with each other between sensor; Sensor for measuring data when ventilation blower runs, and is connected with the Signal reception processing module in processor by transmitter.

2. the online Energy Efficiency Analysis device of ventilation blower according to claim 1, is characterized in that, the data when ventilation blower of described sensor measurement runs comprise: inlet temperature t _in, intake pressure p _in, outlet temperature t _out, top hole pressure p _out.

3. the online Energy Efficiency Analysis device of ventilation blower according to claim 1, it is characterized in that, the online Energy Efficiency Analysis device of described ventilation blower also comprises display screen, and processor is connected with display screen by Industrial Ethernet, and display screen is for showing the real-time energy efficiency data of ventilation blower.

4. the online Energy Efficiency Analysis device of ventilation blower according to claim 3, is characterized in that, the product of the TP series that described display screen adopts Siemens Company to produce.

5. the online Energy Efficiency Analysis device of ventilation blower according to claim 3, it is characterized in that, the online Energy Efficiency Analysis device of described ventilation blower also comprises the data storage device stored for data, and data storage device is connected with display screen by USB2.0 transmission mode.

6. the online Energy Efficiency Analysis device of ventilation blower according to claim 5, is characterized in that, described data storage device adopts portable hard drive.

7. the online Energy Efficiency Analysis device of the ventilation blower according to claim 1 to 6 any one, is characterized in that, described processor adopts general DDC controller.

8. the online Energy Efficiency Analysis device of the ventilation blower according to claim 1 to 6 any one, is characterized in that, described ammeter adopts DSSD719-B type three-phase multifunctional electrical energy meter.