CN102937464B - Performance detection testing system of mine air returning heat exchanger and using method thereof - Google Patents
Performance detection testing system of mine air returning heat exchanger and using method thereof Download PDFInfo
- Publication number
- CN102937464B CN102937464B CN201210464698.3A CN201210464698A CN102937464B CN 102937464 B CN102937464 B CN 102937464B CN 201210464698 A CN201210464698 A CN 201210464698A CN 102937464 B CN102937464 B CN 102937464B
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchanger
- return
- water
- judged result
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to a performance detection testing system of a mine air returning heat exchanger and a using method thereof. The performance detection testing system comprises a cold and hot source device, an air pretreatment device, an air returning heat exchanger testing device and a measurement control device. The cold and hot source device provides cold and hot sources for pretreatment of air in the air pretreatment device and treatment of spray water in the air returning heat exchanger testing device, the air pretreatment device adjusts inlet air to be in needed mine air returning parameters through treatment such as heating, cooling, humidification and dust adding, the air returning heat exchanger testing device detects heat exchange capability, drag characteristics and dedusting capability of the mine air returning heat exchanger under simulation of actual operational states, and the measurement control device comprises a plurality of temperature and humidity sensors, pressure sensors, flow sensors and testers of dust contained concentration to measure parameters such as temperature, pressure, flow and dust content. The performance detection testing system can be widely used for performance detection and testing on the mine air returning heat exchanger.
Description
Technical field
The present invention relates to a kind of properties of product and detect pilot system and using method thereof, particularly about a kind of mine return air heat exchanger Performance Detection pilot system and using method thereof.
Background technology
For most of collieries, mine return air has advantages of that large, the annual humiture of air quantity keeps constant substantially, and therefore, mine return air is heat or the cold source of very high-quality.The use of combining by mine return air heat exchanger with heat pump, can from mine return air, extract in the winter time heat, can be to discharges heat in mine return air in summer, thereby live and produce for colliery required heat or cold is provided, therefore can substitute coal-burning boiler and central air conditioner, there is the effect of energy-saving and emission-reduction.
In general, the performance index of heat interchanger mainly contain heat-transfer capability and resistance.Because mine return air has high humidity, dust is large, thereby in the time utilizing mine return air as heat or cold source, also need to consider also will comprise the factor such as humidity, dust content.Therefore the performance index of mine return air heat exchanger also comprise efficiency of dust collection etc.For this special heat of mine return air or cold source, if mine return air heat exchanger is once there be the performance index that can not meet the demands, by the normal operation of heat pump that directly affects expection and connect, thereby cause meeting user's thermal load demand.From above-mentioned analysis, the pilot system that designs a kind of performance parameter that can detect mine return air heat exchanger is very important, but yet there are no technical standard, method and the patented technology etc. about mine return air heat reclaimer Performance Detection test aspect at present both at home and abroad.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one and can simulate mine return air heat exchanger under actual working conditions, make a service test and product detect mine return air heat exchanger Performance Detection pilot system and using method thereof.
For achieving the above object, the present invention takes following technical scheme: a kind of mine return air heat exchanger Performance Detection pilot system, is characterized in that: it comprises a cold and heat source apparatus, an air pretreatment device, a return-air heat exchanger proving installation and a measuring and controlling; Described cold and heat source apparatus comprises one first source pump unit and one second source pump unit; Described air pretreatment device comprises an air pretreatment unit, an air volume test regulating device, a dust generator and a noise generator; Described air pretreatment unit comprises an air pretreatment case, and the air outlet of described air pretreatment case is connected with described return-air heat exchanger proving installation by one first pipeline; On described the first pipeline, be disposed with an air volume test regulating device, a dust generator and a noise generator; Described air pretreatment case comprises an air outlet, new wind air inlet and a return air air inlet; The new wind air inlet of described air pretreatment case communicates with outside atmosphere by a new wind blast pipe, and a new wind adjusting air valve is set on described new wind blast pipe; The return air air inlet of described air pretreatment case communicates with process mine return air heat exchanger return air after treatment by a return air duct, and a return air adjusting air valve is set on return air duct; New wind air inlet place and return air air inlet place in described air pretreatment case arrange an air mixing chamber; Set gradually the cold well heater of a table, an air humidifying equipment and a blower fan near in the described air pretreatment case of described air mixing chamber; The cold well heater of described table is connected with described the first source pump unit by a circulation line; Described blower fan is electrically connected with described air volume test regulating device; Described return-air heat exchanger proving installation comprises a retention tower, the air outlet place, upper end of described retention tower is provided with the first lateral and the second lateral, described the first lateral directly communicates with outdoor, and described the second lateral connects the return air duct of described air pretreatment case; The lower end of described retention tower arranges a flow guiding unit, and the left end of described flow guiding unit is an air inlet, is connected with the air outlet of described air pretreatment case by described the first pipeline; The bottom of described flow guiding unit is a collection chamber, and the water delivering orifice of described collection chamber connects a main pipeline by one the 3rd pipeline, and described main pipeline connects the water inlet of described the second source pump unit by one first ebullator; On the 3rd pipeline, be provided with online water treatment facilities; The main pipeline of described source pump unit also connects one the 4th pipeline, on described the 5th pipeline, a water valve is set and connects water source; Described retention tower top arranges a mine return air heat exchanger, and the water inlet of described return-air heat exchanger connects one second ebullator by one the 5th pipeline, and described the second ebullator is connected with a water delivering orifice of described the second pumping set unit by a pipeline; One water yield is set on described the 5th pipeline and detects regulating device, the described water yield detects regulating device by controlling flow and the pressure of described the second ebullator adjusting shower water; Described measuring and controlling comprises some temperature sensors, humidity sensor, pressure transducer, flow sensor, dust content tester and some noise-measuring instruments, and they are electrically connected with PLC module respectively, thereby realizes the Monitoring and Controlling of data; Described new wind adjusting air valve, described return air adjusting air valve, the cold well heater of described table, described air humidifier, described dust generator, described noise generator are all electrically connected with described PLC module; Described temperature sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, show air inlet place and air outlet place, the water inlet of return-air heat exchanger and the water outlet of collection chamber of cold heater outlet place, retention tower; Described humidity sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, air inlet place and the air outlet place of air humidifying equipment exit, retention tower; Described pressure transducer is separately positioned on the water inlet of air inlet and air outlet place and the return-air heat exchanger of retention tower; Described flow sensor is separately positioned on air inlet place and the water inlet of air outlet place and return-air heat exchanger and the water outlet of collection chamber of retention tower; Described dust content tester is separately positioned on air inlet and the air outlet place of retention tower; Described noise-measuring instrument is separately positioned on air inlet and the air outlet place of retention tower.
Described in each, source pump unit is formed in parallel by more than one source pump.
Described air humidifying equipment is in series by more than one air humidifier.
Described flow guiding unit is streamlined or tilting.
The pitch angle of described inclined flow guiding unit is set to 30 °～90 °.
The pitch angle of described inclined flow guiding unit is set to 45 ° or 60 ° or 90 °.
Air parameter in described air pretreatment case: temperature: 15～30 DEG C, humidity: 70%～90%, dustiness: 0～90mg/m
3, noise figure: 0～150dB (A).
A using method for mine return air heat exchanger Performance Detection pilot system, it comprises the following steps: 1) open new wind adjusting air valve and return air adjusting air valve; 2) parameter signal that temperature sensor, humidity sensor, flow sensor, dust content tester and the noise-measuring instrument in PLC module admission of air pretreatment unit senses, and judge whether each parameter reaches its corresponding preset value, if judged result, for certainly, enters step 3); If judged result, for negating, on the one hand, starts the size of start and stop, conditioning equipment operational factor or the valve of related device in air pretreatment device, each parameter of the air in air mixing chamber is regulated; On the other hand,, return in air pretreatment case directly by the second lateral of retention tower air outlet through pretreated air, PLC module continues each parameter to monitor and regulate; 3) open water valve, return-air heat exchanger starts spray; 4) parameter signal sending with temperature sensor, humidity sensor, flow sensor, dust content tester and the noise-measuring instrument of return-air heat exchanger water inlet in PLC module admission of air pretreatment unit, and judge whether each parameter reaches its corresponding preset value; If judged result, for certainly, enters step 5); If judged result, for negating, starts in air pretreatment device or the size of start and stop, conditioning equipment operational factor or the valve of return-air heat exchanger water inlet related device, each parameter is regulated; 5) enter retention tower through air pretreatment device air after treatment, carry out the wet exchange of heat with the spray water mist of mine return air heat exchanger, part return air is got back in air pretreatment case by the second lateral of retention tower air outlet, and another part return air is discharged to outdoor by the first lateral of retention tower air outlet; 6) after the spray water mist of mine return air heat exchanger and the wet exchange of air heat, be pooled to the collection chamber of retention tower below, after online hydrotreater is processed, be back to return air heat exchange side source pump, through source pump heating or cooling processing to the condition setting, be delivered to the water inlet pipe of mine return air heat exchanger by ebullator, circulated sprinkling; 7) after system stable operation, PLC module monitors: 1. temperature, humidity, pressure, flow, dust content and the noise figure at the air inlet place of retention tower; 2. the air inlet of retention tower and air outlet place temperature, humidity, pressure, dust content and noise figure; 3. the temperature of the water inlet of return-air heat exchanger, flow of inlet water, the temperature of the water outlet of collection chamber, water flow; Parameters by above-mentioned record and then look into psychrometric chart, thereby draw the air enthalpy at the air inlet place of retention tower, the air enthalpy at air outlet place, and the enthalpy of saturated air while equating with inflow temperature, then calculate the various performance parameters of mine return air heat exchanger according to corresponding formula.
Described step 2) or step 4) in, PLC module is as follows to the detailed process of each air parameter in air pretreatment device: the temperature signal that 1. PLC module arrives by receiving the temperature sensor senses at new wind air inlet place, judges whether Current Temperatures reaches preset value; If judged result, is failure to actuate certainly; If judged result, for negating, is controlled on the one hand the size of new wind adjusting air valve, return air adjusting air valve in air pretreatment device, since regulate blending ratio new, return air; On the other hand, controlling source pump unit provides heat or cold to the cold well heater of table, thereby regulates the temperature of air; 2. the moisture signal that PLC module senses by receiving the humidity sensor at new wind air inlet place, judges whether current humidity reaches preset value; If judged result, is failure to actuate certainly; If judged result, for negating, is controlled in air pretreatment device the size of new wind adjusting air valve, return air adjusting air valve, since regulate blending ratio new, return air; On the other hand, control air humidifying equipment adjusting air humidity; 3. the air flow rate signal that PLC module senses by the flow sensor at the air inlet place of reception retention tower, judges whether present flow rate reaches preset value; If judged result, for negating, changes the air quantity of the rotational speed regulation air of blower fan by controlling air volume test regulating device; If judged result, is failure to actuate certainly; 4. PLC module, by the air-borne dust cont signal of the dust content tester at the air inlet place of reception retention tower, judges whether current dust content reaches preset value; If judged result is for negating, by controlling the dust content that regulates air by the dust generating capacity of dust regulator; If judged result, is failure to actuate certainly; 5. PLC module, by the noise figure signal of the noise-measuring instrument at the air inlet place of reception retention tower, judges whether current noise figure reaches preset value; If judged result is for negating, by controlling noise generator to regulate noise figure; If judged result, is failure to actuate certainly.
In described step 4), PLC module is as follows to the detailed process of the each parameter in return-air heat exchanger water inlet: the temperature signal that 1. the water inlet temperature sensor senses of PLC module reception return-air heat exchanger arrives, judges whether Current Temperatures reaches preset value; If judged result, is failure to actuate certainly; If judged result, for negating, is controlled source pump unit and is regulated return-air heat exchanger inflow temperature; 2. the water flow signal that the water inlet flow sensor of PLC module reception return-air heat exchanger senses, judges whether present flow rate reaches preset value; If judged result, is failure to actuate certainly; If judged result, for negating, changes the rotating speed of ebullator by controlling water yield detection regulating device, and then change the discharge of water inlet.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to being provided with an air pretreatment unit, an air volume test regulating device, a dust generator and a noise generator in air pretreatment device, and show cold well heater, an air humidifying equipment and a blower fan at air pretreatment unit by being provided with, therefore the present invention can, in any season by the relevant device in this adjusting air pretreatment device, reach the requirement of mine return air parameter in simulation Practical Project.2, the present invention is owing to being provided with an air mixing chamber in air pretreatment device, air mixing chamber is positioned at new wind air inlet place and return air air inlet place, with by the even mixing for new wind, return air, therefore, system of the present invention has fully reclaimed cold or the heat energy in return air, and then has reduced pre-service energy consumption.3, the present invention is due at air air inlet place, in air pretreatment case, the air inlet place of retention tower and air outlet place, the water inlet of return-air heat exchanger and the water outlet of collection chamber, be provided with accordingly respectively temperature, humidity, dust content, flow and pressure transducer, then can control according to experiment condition or testing conditions by PLC module, and real-time autostore, the each parameter of monitoring analysis, therefore, the present invention can be by the parameter of monitoring, and then realize the thermal property of mine return air heat exchanger, the detection of the performance index such as drag characteristic and efficiency of dust collection.The present invention can be widely used for mine return air heat exchanger to carry out Performance Detection and test.
Brief description of the drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of air pretreatment device of the present invention
Fig. 3 is the structural representation of return-air heat exchanger proving installation of the present invention
Fig. 4 is the structural representation of the fairshaped flow guiding unit of the present invention
Fig. 5 is the structural representation of the flow guiding unit of 45 ° of inclinations of the present invention
Fig. 6 is the structural representation of the flow guiding unit of 60 ° of inclinations of the present invention
Fig. 7 is the structural representation of the flow guiding unit of 90 ° of inclinations of the present invention
Schematic flow sheet when Fig. 8 is PLC module controls of the present invention
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
The present invention includes a cold and heat source apparatus, an air pretreatment device, a return-air heat exchanger proving installation and a measuring and controlling.
As shown in Figure 1, cold and heat source apparatus of the present invention comprises two source pump unit 11,12, source pump unit 11 provides needed cold or heat for air pretreatment device, and source pump unit 12 provides needed cold or heat for return-air heat exchanger proving installation.Source pump unit 11,12 is formed in parallel by more than one source pump.
Air pretreatment device of the present invention is for simulating the underground return air parameter under practical application winter, summer and transition season working condition, by air-treatment to mine return air state.Air pretreatment device comprises an air pretreatment unit 21, an air volume test regulating device 22, a dust generator 23 and a noise generator 24.Air pretreatment unit 21 comprises an air pretreatment case 25, and the air outlet 251 of air pretreatment case 25, by a pipeline 252, is connected with return-air heat exchanger proving installation.On pipeline 252, be disposed with an air volume test regulating device 22, a dust generator 23 and a noise generator 24.
Air pretreatment case 25 comprises an air outlet 251, new wind air inlet 253 and a return air air inlet 254.New wind air inlet 253 communicates with outside atmosphere by a new wind blast pipe, on new wind blast pipe, a new wind adjusting air valve 255 is set, in order to control new wind intake.Return air air inlet 254 communicates with process mine return air heat exchanger return air after treatment by a return air duct, a return air adjusting air valve 256 is set, in order to control return air intake on return air duct.
New wind air inlet 253 places and return air air inlet 254 places in air pretreatment case 25 arrange an air mixing chamber 257, for the even mixing of new wind, return air.Set gradually the cold well heater 258 of a table, an air humidifying equipment 259 and a blower fan 260 near in the air pretreatment case 25 of air mixing chamber 257.Showing cold well heater 258 is connected with source pump unit 11 by a circulation line.Air humidifying equipment 259 adds wet process to the air in air pretreatment case 25, improves airborne relative humidity.Blower fan 260 is electrically connected with air volume test regulating device 22.
Return-air heat exchanger proving installation of the present invention comprises a retention tower 31, and upper end air outlet 311 places of retention tower 31 are provided with two laterals 312,313, and lateral 312 directly communicates with outdoor, and lateral 313 connects the return air duct of air pretreatment case 25.
The lower end of retention tower 31 has the flow guiding unit 32 that can dismantle and change, and the left end of flow guiding unit 32 is an air inlet 33, is connected with the air outlet 251 of air pretreatment case 25 by pipeline 252.The bottom of flow guiding unit 32 is a collection chamber 34, and the water delivering orifice 341 of collection chamber 34 connects a main pipeline 343 by a pipeline 342, and main pipeline 343 connects the water inlet 121 of source pump unit 12 by an ebullator 344.On pipeline 342, be provided with online water treatment facilities 35.The main pipeline 343 of source pump unit 12 also connects another pipeline 123, a water valve 124 is set on pipeline 123 and connects water source, during in order to moisturizing, opens.
Retention tower 31 tops are removably provided with needs tested mine return air heat exchanger 36, the water inlet 361 of return-air heat exchanger 36 connects an ebullator 363 by a pipeline 362, ebullator 363 is connected with a water delivering orifice 122 of source pump unit 12 by a pipeline, ebullator 363 provides spray water source for return-air heat exchanger 36, thereby forms a circulation line.One water yield is set on pipeline 361 and detects regulating device 37, regulate flow and the pressure of shower water by controlled circulation pump 363.
As shown in Figure 2 and Figure 3, measuring and controlling comprises some temperature sensors 41, humidity sensor 42, pressure transducer 43, flow sensor 44, dust content tester 45 and noise-measuring instrument 46, they are electrically connected with PLC module (not shown) respectively, thereby realize the Monitoring and Controlling of data.In addition, new wind adjusting air valve 255, return air adjusting air valve 256, show cold well heater 258, air humidifier 259, dust generator 23, noise generator 24 and be all electrically connected with PLC module.
Temperature sensor 41 can arrange nine, lays respectively in new wind air inlet 253 places, return air air inlet 254 places, air mixing chamber 257, shows air inlet 33 places and air outlet 311 places, water inlet 361 places of return-air heat exchanger 36 and water delivering orifice 341 places of collection chamber 34 of cold well heater 258 exits, air humidifying equipment 259 exits, retention tower 31.Humidity sensor 42 can arrange seven, is separately positioned in new wind air inlet 253 places, return air air inlet 254 places, air mixing chamber 257, shows air inlet 33 places and air outlet 311 places of cold well heater 258 exits, air humidifying equipment 259 exits, retention tower 31.Pressure transducer 43 can arrange four, and wherein two are arranged on respectively air inlet 33 and air outlet 311 places of retention tower 31; Two other is separately positioned on water inlet 361 places of return-air heat exchanger 36 and water delivering orifice 341 places of collection chamber 34.Flow sensor 44 can arrange four, and setting position is identical with the setting position of pressure transducer 43.Dust content tester 45 can arrange two, is separately positioned on air inlet 33 places and air outlet 311 places of retention tower 31.Noise-measuring instrument 46 can arrange two, and setting position is identical with the setting position of dust content tester 45.
In above-described embodiment, the scope general control of the air parameter in air pretreatment case 25 exists: temperature is 10～30 DEG C, and humidity is 60%～100%, and dustiness is 0～90mg/m
3, noise figure is 0～150dB (A).
In above-described embodiment, flow guiding unit 32 can be set to tilting or streamlined (as shown in Figure 4), and wherein tilting pitch angle can be set to 30 °～90 °, as 45 °, 60 °, 90 ° (as shown in Fig. 5, Fig. 6, Fig. 7).The shape of flow guiding unit 32 is not limited to this, can also carry out according to the property indices of return-air heat exchanger 36 design of other shape.
Apply the using method that system of the present invention is carried out the test of mine return air heat exchanger Performance Detection, comprise the steps:
1) open new wind adjusting air valve 255 and return air adjusting air valve 256, outdoor new wind enters the air mixing chamber 257 in air pretreatment case 25 by new wind air inlet 253.
2) parameter signal that temperature sensor 41, humidity sensor 42, flow sensor 44, dust content tester 45 and the noise-measuring instrument 46 in PLC module admission of air pretreatment unit senses, and judge whether each parameter reaches its corresponding preset value;
If judged result, for certainly, enters step 3);
If judged result, for negating, on the one hand, starts the size of start and stop, conditioning equipment operational factor or the valve of air pretreatment device 2 interior related devices, each parameter of the air in air mixing chamber 257 is regulated; On the other hand,, return in air pretreatment case 25 directly by the lateral 313 of retention tower 31 air outlets 311 through pretreated air, PLC module continues each parameter to monitor and regulate.
The detailed process of PLC module is as follows:
1. the temperature signal that PLC module senses by receiving the temperature sensor 41 at new wind air inlet 253 places, judges whether Current Temperatures reaches preset value T
0;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled on the one hand the size of new wind adjusting air valve 255, return air adjusting air valve 256 in air pretreatment device 2, since regulate blending ratio new, return air; On the other hand, controlling source pump unit 12 provides heat or cold to the cold well heater 258 of table, thereby regulates the temperature of air.
2. the moisture signal that PLC module senses by receiving the humidity sensor 42 at new wind air inlet 253 places, judges whether current humidity reaches preset value T
s0;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled in air pretreatment device the size of new wind adjusting air valve 255, return air adjusting air valve 256, since regulate blending ratio new, return air; On the other hand, control air humidifying equipment 259 adjusting air humidities.
3. the air flow rate signal that PLC module senses by the flow sensor 44 at air inlet 33 places of reception retention tower 31, judges whether present flow rate reaches preset value G
0;
If judged result, is failure to actuate certainly;
If judged result, for negating, changes the air quantity of the rotational speed regulation air of blower fan 260 by controlling air volume test regulating device 22;
4. PLC module, by the air-borne dust cont signal of the dust content tester 45 at air inlet 33 places of reception retention tower 31, judges whether current dust content reaches preset value C
0;
If judged result, is failure to actuate certainly;
If judged result is for negating, by controlling the dust content that regulates air by the dust generating capacity of dust regulator 23;
5. PLC module, by the noise figure signal of the noise-measuring instrument 46 at air inlet 33 places of reception retention tower 31, judges whether current noise figure reaches preset value L
p0;
If judged result, is failure to actuate certainly;
If judged result is for negating, by controlling noise generator 24 to regulate noise figure;
3) open water valve 124, return-air heat exchanger 36 starts spray;
4) each parameter signal that 1. temperature sensor 41, humidity sensor 42, flow sensor 44, dust content tester 45 and the noise-measuring instrument 46 in PLC module admission of air pretreatment unit 2 sends, and judge whether each parameter reaches its corresponding preset value;
If judged result, for certainly, enters step 5);
If judged result, for negating, starts the size of start and stop, conditioning equipment operational factor or the valve of air pretreatment device 2 interior related devices, each parameter of the air in air mixing chamber 257 is regulated;
PLC module to the concrete control procedure of the temperature in air pretreatment device, humidity, flow, dust content and noise figure as step 2) as described in;
2. the temperature signal that water inlet 361 place's temperature sensors 41 of PLC module reception return-air heat exchanger 36 sense, judges whether Current Temperatures reaches preset value T
w0;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled source pump unit 12 and is regulated return-air heat exchanger 36 inflow temperatures;
3. the water flow signal that water inlet 361 place's flow sensors 44 of PLC module reception return-air heat exchanger 36 sense, judges whether present flow rate reaches preset value W
0;
If judged result, is failure to actuate certainly;
If judged result, for negating, changes the rotating speed of ebullator 363 by controlling water yield detection regulating device 37, and then change the discharge at water inlet 361 places;
5) enter retention tower 31 through air pretreatment device air after treatment, carry out the wet exchange of heat with the spray water mist of mine return air heat exchanger 36, part return air is got back in air pretreatment case 25 by the lateral 313 of retention tower 31 air outlets 311, and another part return air is discharged to outdoor by the lateral 312 of retention tower 31 air outlets 311.
6) after the spray water mist of mine return air heat exchanger 36 and the wet exchange of air heat, be pooled to the collection chamber 34 of retention tower below, after online hydrotreater 35 is processed, be back to return air heat exchange side source pump 12, through source pump heating or cooling processing to the condition setting, be delivered to the water inlet pipe of mine return air heat exchanger 36 by ebullator 363, circulated sprinkling.
7) after system stable operation, PLC module monitors: 1. air mass flow G, the dry-bulb temperature T at air inlet 33 places of retention tower 31
1, wet-bulb temperature T
s1, pressure P
1, dust content C
1and noise figure L
p1, the 2. air outlet 311 dry-bulb temperature T of place of retention tower 31
2, wet-bulb temperature T
s2, pressure P
2, dust content C
2and noise figure L
p2, the 3. temperature T at water inlet 361 places of return-air heat exchanger 36
w1, flow of inlet water W
enter, the temperature T at water delivering orifice 341 places of collection chamber 34
w2, water flow W
go out, the parameters by above-mentioned record and then look into psychrometric chart, thus draw the air enthalpy i at air inlet 33 places of retention tower 31
1, the air enthalpy i at air outlet 311 places
2, and the enthalpy i of saturated air while equating with inflow temperature
w1, then calculate the various performance parameters of mine return air heat exchanger according to following formula.
The wet exchange of the heat sophistication X of mine return air heat exchanger:
Heat transfer ratio S
wu, wherein F is the cross-sectional area of return-air heat exchanger 36:
The efficiency of dust collection Δ C of mine return air heat exchanger:
The percentage of water loss Δ W of mine return air heat exchanger:
The drag characteristic Δ P of mine return air heat exchanger:
ΔP＝P
2-P
1
The noise reduction capability Δ L of mine return air heat exchanger
p:
ΔL
p=L
p1－L
p2
The various embodiments described above are only for illustrating the present invention, and wherein structure, the connected mode etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a mine return air heat exchanger Performance Detection pilot system, is characterized in that:
It comprises a cold and heat source apparatus, an air pretreatment device, a return-air heat exchanger proving installation and a measuring and controlling;
Described cold and heat source apparatus comprises one first source pump unit and one second source pump unit;
Described air pretreatment device comprises an air pretreatment unit, an air volume test regulating device, a dust generator and a noise generator;
Described air pretreatment unit comprises an air pretreatment case, and the air outlet of described air pretreatment case is connected with described return-air heat exchanger proving installation by one first pipeline; On described the first pipeline, be disposed with an air volume test regulating device, a dust generator and a noise generator;
Described air pretreatment case comprises an air outlet, new wind air inlet and a return air air inlet; The new wind air inlet of described air pretreatment case communicates with outside atmosphere by a new wind blast pipe, and a new wind adjusting air valve is set on described new wind blast pipe; The return air air inlet of described air pretreatment case communicates with process mine return air heat exchanger return air after treatment by a return air duct, and a return air adjusting air valve is set on return air duct;
New wind air inlet place and return air air inlet place in described air pretreatment case arrange an air mixing chamber; Set gradually the cold well heater of a table, an air humidifying equipment and a blower fan near in the described air pretreatment case of described air mixing chamber; The cold well heater of described table is connected with described the first source pump unit by a circulation line; Described blower fan is electrically connected with described air volume test regulating device;
Described return-air heat exchanger proving installation comprises a retention tower, the air outlet place, upper end of described retention tower is provided with the first lateral and the second lateral, described the first lateral directly communicates with outdoor, and described the second lateral connects the return air duct of described air pretreatment case;
The lower end of described retention tower arranges a flow guiding unit, and the left end of described flow guiding unit is an air inlet, is connected with the air outlet of described air pretreatment case by described the first pipeline;
The bottom of described flow guiding unit is a collection chamber, and the water delivering orifice of described collection chamber connects a main pipeline by one the 3rd pipeline, and described main pipeline connects the water inlet of described the second source pump unit by one first ebullator; On described the 3rd pipeline, be provided with online water treatment facilities; The main pipeline of described source pump unit also connects one the 4th pipeline, on described the 4th pipeline, a water valve is set and connects water source;
Described retention tower top arranges a mine return air heat exchanger, and the water inlet of described mine return air heat exchanger connects one second ebullator by one the 5th pipeline, and described the second ebullator is connected with a water delivering orifice of described the second source pump unit by a pipeline; One water yield is set on described the 5th pipeline and detects regulating device, the described water yield detects regulating device by controlling flow and the pressure of described the second ebullator adjusting shower water;
Described measuring and controlling comprises some temperature sensors, humidity sensor, pressure transducer, flow sensor, dust content tester and some noise-measuring instruments, and they are electrically connected with PLC module respectively, thereby realizes the Monitoring and Controlling of data;
Described new wind adjusting air valve, described return air adjusting air valve, the cold well heater of described table, described air humidifier, described dust generator, described noise generator are all electrically connected with described PLC module;
Described temperature sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, show air inlet place and air outlet place, the water inlet of return-air heat exchanger and the water outlet of collection chamber of cold heater outlet place, retention tower;
Described humidity sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, air inlet place and the air outlet place of air humidifying equipment exit, retention tower;
Described pressure transducer is separately positioned on the water inlet of air inlet and air outlet place and the return-air heat exchanger of retention tower;
Described flow sensor is separately positioned on air inlet place and the water inlet of air outlet place and return-air heat exchanger and the water outlet of collection chamber of retention tower;
Described dust content tester is separately positioned on air inlet and the air outlet place of retention tower;
Described noise-measuring instrument is separately positioned on air inlet and the air outlet place of retention tower.
2. mine return air heat exchanger Performance Detection pilot system as claimed in claim 1, is characterized in that: described in each, source pump unit is formed in parallel by more than one source pump.
3. mine return air heat exchanger Performance Detection pilot system as claimed in claim 1, is characterized in that: described air humidifying equipment is in series by more than one air humidifier.
4. mine return air heat exchanger Performance Detection pilot system as claimed in claim 1, is characterized in that: described flow guiding unit is streamlined or tilting.
5. mine return air heat exchanger Performance Detection pilot system as claimed in claim 4, is characterized in that: the pitch angle of described inclined flow guiding unit is set to 30 °～90 °.
6. mine return air heat exchanger Performance Detection pilot system as claimed in claim 5, is characterized in that: the pitch angle of described inclined flow guiding unit is set to 45 ° or 60 ° or 90 °.
7. mine return air heat exchanger Performance Detection pilot system as claimed in claim 1, is characterized in that: the air parameter in described air pretreatment case: temperature: 15～30 DEG C, and humidity: 70%～90%, dustiness: 0～90mg/m
3, noise figure: 0～150dB (A).
8. the using method of the mine return air heat exchanger Performance Detection pilot system as described in claim 1～7 any one, it comprises the following steps:
1) open new wind adjusting air valve and return air adjusting air valve;
2) parameter signal that temperature sensor, humidity sensor, flow sensor, dust content tester and the noise-measuring instrument in PLC module admission of air pretreatment unit senses, and judge whether each parameter reaches its corresponding preset value, if judged result, for certainly, enters step 3);
If judged result, for negating, on the one hand, starts the size of start and stop, conditioning equipment operational factor or the valve of related device in air pretreatment device, each parameter of the air in air mixing chamber is regulated; On the other hand,, return in air pretreatment case directly by the second lateral of retention tower air outlet through pretreated air, PLC module continues each parameter to monitor and regulate;
3) open water valve, return-air heat exchanger starts spray;
4) parameter signal sending with temperature sensor, humidity sensor, flow sensor, dust content tester and the noise-measuring instrument of return-air heat exchanger water inlet in PLC module admission of air pretreatment unit, and judge whether each parameter reaches its corresponding preset value;
If judged result, for certainly, enters step 5);
If judged result, for negating, starts in air pretreatment device or the size of start and stop, conditioning equipment operational factor or the valve of return-air heat exchanger water inlet related device, each parameter is regulated;
5) enter retention tower through air pretreatment device air after treatment, carry out the wet exchange of heat with the spray water mist of mine return air heat exchanger, part return air is got back in air pretreatment case by the second lateral of retention tower air outlet, and another part return air is discharged to outdoor by the first lateral of retention tower air outlet;
6) after the spray water mist of mine return air heat exchanger and the wet exchange of air heat, be pooled to the collection chamber of retention tower below, after online hydrotreater is processed, be back to return air heat exchange side source pump, through source pump heating or cooling processing to the condition setting, be delivered to the water inlet pipe of mine return air heat exchanger by ebullator, circulated sprinkling;
7) after system stable operation, PLC module monitors:
1. temperature, humidity, pressure, flow, dust content and the noise figure at the air inlet place of retention tower;
2. the air inlet of retention tower and air outlet place temperature, humidity, pressure, dust content and noise figure;
3. the temperature of the water inlet of return-air heat exchanger, flow of inlet water, the temperature of the water outlet of collection chamber, water flow;
Parameters by above-mentioned record and then look into psychrometric chart, thereby draw the air enthalpy at the air inlet place of retention tower, the air enthalpy at air outlet place, and the enthalpy of saturated air while equating with inflow temperature, then calculate the various performance parameters of mine return air heat exchanger according to corresponding formula.
9. the using method of mine return air heat exchanger Performance Detection pilot system as claimed in claim 8, described step 2) or step 4) in, PLC module is as follows to the detailed process of each air parameter in air pretreatment device:
1. the temperature signal that PLC module arrives by receiving the temperature sensor senses at new wind air inlet place, judges whether Current Temperatures reaches preset value;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled on the one hand the size of new wind adjusting air valve, return air adjusting air valve in air pretreatment device, since regulate blending ratio new, return air; On the other hand, controlling source pump unit provides heat or cold to the cold well heater of table, thereby regulates the temperature of air;
2. the moisture signal that PLC module senses by receiving the humidity sensor at new wind air inlet place, judges whether current humidity reaches preset value;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled in air pretreatment device the size of new wind adjusting air valve, return air adjusting air valve, since regulate blending ratio new, return air; On the other hand, control air humidifying equipment adjusting air humidity;
3. the air flow rate signal that PLC module senses by the flow sensor at the air inlet place of reception retention tower, judges whether present flow rate reaches preset value;
If judged result, for negating, changes the air quantity of the rotational speed regulation air of blower fan by controlling air volume test regulating device;
If judged result, is failure to actuate certainly;
4. PLC module, by the air-borne dust cont signal of the dust content tester at the air inlet place of reception retention tower, judges whether current dust content reaches preset value;
If judged result is for negating, by controlling the dust content that regulates air by the dust generating capacity of dust regulator;
If judged result, is failure to actuate certainly;
5. PLC module, by the noise figure signal of the noise-measuring instrument at the air inlet place of reception retention tower, judges whether current noise figure reaches preset value;
If judged result is for negating, by controlling noise generator to regulate noise figure;
If judged result, is failure to actuate certainly.
10. the using method of mine return air heat exchanger Performance Detection pilot system as claimed in claim 8 or 9, described step 4) in, PLC module is as follows to the detailed process of the each parameter in return-air heat exchanger water inlet:
1. the temperature signal that the water inlet temperature sensor senses of PLC module reception return-air heat exchanger arrives, judges whether Current Temperatures reaches preset value;
If judged result, is failure to actuate certainly;
If judged result, for negating, is controlled source pump unit and is regulated return-air heat exchanger inflow temperature;
2. the water flow signal that the water inlet flow sensor of PLC module reception return-air heat exchanger senses, judges whether present flow rate reaches preset value;
If judged result, is failure to actuate certainly;
If judged result, for negating, changes the rotating speed of ebullator by controlling water yield detection regulating device, and then change the discharge of water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464698.3A CN102937464B (en) | 2012-11-16 | 2012-11-16 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464698.3A CN102937464B (en) | 2012-11-16 | 2012-11-16 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937464A CN102937464A (en) | 2013-02-20 |
| CN102937464B true CN102937464B (en) | 2014-12-10 |
Family
ID=47696375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210464698.3A Active CN102937464B (en) | 2012-11-16 | 2012-11-16 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937464B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483094A (en) * | 2014-12-22 | 2015-04-01 | 山东大学 | Platform and method for measuring resistance characteristic of heat exchange tube bundle |
| CN105139117A (en) * | 2015-08-17 | 2015-12-09 | 北京矿大节能科技有限公司 | Method for determining the performance evaluation index of air return heat exchanger for spraying mine |
| CN108982582A (en) * | 2018-06-15 | 2018-12-11 | 南京林业大学 | A kind of high temperature and humidity dusty gas is produced and recuperation of heat experimental provision and method |
| CN109737551B (en) * | 2019-01-09 | 2021-03-02 | 天津市二十四小时环境科技有限公司 | Energy-saving fresh air partition system control method |
| CN109827792A (en) * | 2019-02-14 | 2019-05-31 | 江苏科技大学 | The dry and wet refrigeration and heating condition lower surface cooler performance experimental rig of open type |
| CN110208025A (en) * | 2019-06-24 | 2019-09-06 | 中国矿业大学 | A kind of wet switching performance test device of polymorphic type mine air-lack exchanger heat |
| CN112503615A (en) * | 2019-09-16 | 2021-03-16 | 卡林热泵技术有限公司 | Modular ventilation air heat pump unit and mine exhaust air waste heat recovery method |
| CN113607421B (en) * | 2021-07-06 | 2023-08-08 | 中国北方车辆研究所 | Test device for vehicle cooling system performance test |
| CN113970453B (en) * | 2021-10-26 | 2023-09-26 | 中国矿业大学 | Heat-moisture exchange performance testing device of large enthalpy difference cooling equipment in heat damage mine mining area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009180587A (en) * | 2008-01-30 | 2009-08-13 | Sanyo Electric Co Ltd | Sensor unit and control device using the same |
| CN102494442A (en) * | 2011-12-08 | 2012-06-13 | 北京矿大节能科技有限公司 | Direct expansion type mine return air source heat pump system and operation method thereof |
| CN202361690U (en) * | 2011-12-08 | 2012-08-01 | 北京矿大节能科技有限公司 | Connecting device for mine return-air heat exchanger and diffusion tower |
| CN202442550U (en) * | 2012-02-13 | 2012-09-19 | 北京矿大节能科技有限公司 | System capable of recycling part of waste energy in return air of mine |
| CN202928612U (en) * | 2012-11-16 | 2013-05-08 | 北京矿大节能科技有限公司 | Performance detection system of mine return air heat exchanger |
-
2012
- 2012-11-16 CN CN201210464698.3A patent/CN102937464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009180587A (en) * | 2008-01-30 | 2009-08-13 | Sanyo Electric Co Ltd | Sensor unit and control device using the same |
| CN102494442A (en) * | 2011-12-08 | 2012-06-13 | 北京矿大节能科技有限公司 | Direct expansion type mine return air source heat pump system and operation method thereof |
| CN202361690U (en) * | 2011-12-08 | 2012-08-01 | 北京矿大节能科技有限公司 | Connecting device for mine return-air heat exchanger and diffusion tower |
| CN202442550U (en) * | 2012-02-13 | 2012-09-19 | 北京矿大节能科技有限公司 | System capable of recycling part of waste energy in return air of mine |
| CN202928612U (en) * | 2012-11-16 | 2013-05-08 | 北京矿大节能科技有限公司 | Performance detection system of mine return air heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102937464A (en) | 2013-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937464B (en) | Performance detection testing system of mine air returning heat exchanger and using method thereof | |
| Al-Zubaydi et al. | Experimental study of a novel water-spraying configuration in indirect evaporative cooling | |
| CN202928612U (en) | Performance detection system of mine return air heat exchanger | |
| CN103645693B (en) | A kind of integrated wireless temperature and humidity control device system | |
| Cheng et al. | Automated laboratory load-based testing and performance rating of residential cooling equipment | |
| CN100535817C (en) | Method for controlling air humidity of humiture test box and structure thereof | |
| CN102937490B (en) | Air conditioner refrigerating capacity and heating capacity testing method and air pipe box heat meter | |
| Guan et al. | On-site performance investigation of a desiccant wheel deep-dehumidification system applied in lithium battery manufacturing plant | |
| CN108131755A (en) | A kind of electrical equipment component cabinet humiture cooperative control method | |
| CN102032624B (en) | Performance test device for evaporative air conditioner | |
| CN108756996B (en) | Mine hot and humid environment simulation experiment platform | |
| CN202485915U (en) | Air enthalpy method refrigerating capacity and heating capacity calibrating device | |
| CN102589921B (en) | Rotatable experimental apparatus for low-temperature high-humidity gas-gas heat exchanger | |
| CN109026120B (en) | Boiling condensation type mine hot and humid environment simulation experiment platform | |
| CN203083830U (en) | Finished automobile air-conditioning system simulation test device | |
| CN104043488B (en) | Test device | |
| CN101393082B (en) | SEER measuring apparatus and method based on common enthalpy difference chamber | |
| CN110208025A (en) | A kind of wet switching performance test device of polymorphic type mine air-lack exchanger heat | |
| CN201897270U (en) | Performance test unit of evaporative type air conditioner | |
| CN200941160Y (en) | Humidity control structure of temp-humidity verification box | |
| CN114759225A (en) | Testing system and testing method for water-gas separator of fuel cell | |
| CN114018791A (en) | Artificial climate environment comprehensive simulation system | |
| CN109959523B (en) | Roof air conditioning unit test device | |
| CN209588304U (en) | Low dew point double runner dehumidifier amount parameter online monitoring system complicated and changeable | |
| CN206787822U (en) | A kind of fan coil units device for detecting performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: 100097 446, 4th floor, building 1, No.138 courtyard, Zhanghua Road, Haidian District, Beijing Patentee after: Beijing Zhongkuang Chuangzhi Energy Saving Technology Co.,Ltd. Address before: 100083 2 / F, block A2, Zhongguancun energy security science and Technology Park, Haidian District, Beijing Patentee before: BEIJING CUMT ENERGY CONSERVATION TECHNOLOGY Co.,Ltd. |