CN202928612U - Performance detection system of mine return air heat exchanger - Google Patents
Performance detection system of mine return air heat exchanger Download PDFInfo
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- CN202928612U CN202928612U CN 201220605611 CN201220605611U CN202928612U CN 202928612 U CN202928612 U CN 202928612U CN 201220605611 CN201220605611 CN 201220605611 CN 201220605611 U CN201220605611 U CN 201220605611U CN 202928612 U CN202928612 U CN 202928612U
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Abstract
The utility model relates to a performance detection system of a mine return air heat exchanger, comprising a hot and cold source device, an air pretreatment device, a return air heat exchanger test device and a test control device. The hot and cold source device provides hot and cold sources for air pretreatment by the air pretreatment device and spray water process by the return air heat exchanger test device; the air pretreatment device adjusts parameters of the inlet air to required mine air return parameters by heating or cooling, humidifying, dust addition and other process; the return air heat exchanger test device tests the heat exchange capability, resistance characteristic and dedusting capability of the mine return air heat exchanger under a simulation reality operation working condition; and the test control device comprises several humiture sensors, a pressure transducer, a flow sensor and a dust-laden concentration tester to measure the temperature, pressure, flow, dust load and other parameters of the system. The performance detection system of the mine return air heat exchanger can be widely applied for performance detection and test of the mine return air heat exchanger.
Description
Technical field
The utility model relates to a kind of properties of product and detects pilot system, particularly about a kind of mine return air heat exchanger Performance Detection pilot system.
Background technology
For most of collieries, mine return air has advantages of that air quantity is large, annual humiture keeps constant substantially, and therefore, mine return air is that heat or the cold of very high-quality originated.The use of uniting by mine return air heat exchanger and heat pump, can extract heat in the winter time from mine return air, can be to discharges heat in mine return air in summer, thereby live and produce for the colliery required heat or cold is provided, therefore can substitute coal-burning boiler and central air conditioner, have 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 when utilizing mine return air as heat or cold source, also need to consider also will comprise the factors such as humidity, dust content.Therefore the performance index of mine return air heat exchanger also comprise efficiency of dust collection etc.Originate for this special heat of mine return air or cold, when if in a single day mine return air heat exchanger exists the performance index that can not meet the demands, to directly affect the normal operation of the heat pump of expection connection, thereby cause to satisfy user's thermal load demand.From above-mentioned analysis as can be known, design a kind of pilot system that can detect the performance parameter of mine return air heat exchanger and be very important, but present technical standard, method and the patented technology etc. that yet there are no relevant mine return air heat reclaimer Performance Detection test aspect both at home and abroad.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of mine return air heat exchanger of can simulating under actual working conditions, makes a service test and mine return air heat exchanger Performance Detection pilot system that product detects.
For achieving the above object, the utility model is taked 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; Be disposed with an air volume test regulating device, a dust generator and a noise generator on described the first pipeline; 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 the return air that passes through after mine return air heat exchanger is processed by a return air duct, and a return air adjusting air valve is set on return air duct; New wind air inlet place in described air pretreatment case and return air air inlet place arrange an air mixing chamber; Near setting gradually table cold well heater, an air humidifying equipment and a blower fan 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 to 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 trunk line by one the 3rd pipeline, and described trunk line connects the water inlet of described the second source pump unit by one first ebullator; Be provided with online water treatment facilities on the 3rd pipeline; The trunk line of described source pump unit also connects one the 4th pipeline, a water valve is set on described the 5th pipeline and connects the 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 by the water delivering orifice of a pipeline with described the second pumping set unit; One water yield is set on described the 5th pipeline detects regulating device, the described water yield detects regulating device and regulates flow and the pressure of shower water by controlling described the second ebullator; 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 to the 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 all are electrically connected to described PLC module; Described temperature sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, the air inlet place of the cold heater outlet of table place, retention tower and air outlet place, the water inlet of return-air heat exchanger and the water outlet of collection chamber; Described humidity sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, the air inlet place of air humidifying equipment exit, retention tower and air outlet place; 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.
Each described 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 ℃, humidity: 70%～90%, dustiness: 0～90mg/m
3, noise figure: 0～150dB (A).
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model is owing to being provided with an air pretreatment unit, an air volume test regulating device, a dust generator and a noise generator in the air pretreatment device, and show cold well heater, an air humidifying equipment and a blower fan at the air pretreatment unit by being provided with, therefore the utility model can in any season by the relevant device in this adjusting air pretreatment device, reach the requirement of mine return air parameter in the simulation Practical Project.2, the utility model is owing to being provided with an air mixing chamber in the air pretreatment device, air mixing chamber is positioned at new wind air inlet place and return air air inlet place, with will be for the even mixing of new wind, return air, therefore, the utility model system has fully reclaimed cold or the heat energy in return air, and then has reduced the pre-service energy consumption.3, the utility model is due at air air inlet place, in the 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 the PLC module, and real-time autostore, each parameter of monitoring analysis, therefore, the utility model 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 utility model can be widely used for mine return air heat exchanger is carried out Performance Detection and test.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of the utility model air pretreatment device
Fig. 3 is the structural representation of the utility model return-air heat exchanger proving installation
Fig. 4 is the structural representation of the fairshaped flow guiding unit of the utility model
Fig. 5 is the structural representation of the flow guiding unit of 45 ° of inclinations of the utility model
Fig. 6 is the structural representation of the flow guiding unit of 60 ° of inclinations of the utility model
Fig. 7 is the structural representation of the flow guiding unit of 90 ° of inclinations of the utility model
Schematic flow sheet when Fig. 8 is the utility model PLC module controls
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
The utility model comprises 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, the utility model cold and heat source apparatus comprises two source pump unit 11,12, source pump unit 11 provides needed cold or heat for the air pretreatment device, and source pump unit 12 provides needed cold or heat for the return-air heat exchanger proving installation.Source pump unit 11,12 is formed in parallel by more than one source pump.
The utility model air pretreatment device is used for the underground return air parameter under simulation practical application winter, summer and transition season working condition, with air-treatment to the mine return air state.The 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 is connected with the return-air heat exchanger proving installation by a pipeline 252.Be disposed with an air volume test regulating device 22, a dust generator 23 and a noise generator 24 on pipeline 252.
New wind air inlet 253 places in air pretreatment case 25 and return air air inlet 254 places arrange an air mixing chamber 257, are used for the even mixing of new wind, return air.Near setting gradually table cold well heater 258, an air humidifying equipment 259 and a blower fan 260 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 in 259 pairs of air pretreatment casees of air humidifying equipment 25 adds wet process, improves airborne relative humidity.Blower fan 260 is electrically connected to air volume test regulating device 22.
The utility model return-air heat exchanger proving installation comprises a retention tower 31, upper end air outlet 311 places of retention tower 31 are provided with two laterals 312,313, 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 of collection chamber 34 341 connects trunk lines 343 by a pipeline 342, and trunk line 343 connects the water inlet 121 of source pump unit 12 by an ebullator 344.Be provided with online water treatment facilities 35 on pipeline 342.The trunk line 343 of source pump unit 12 also connects another pipeline 123, a water valve 124 is set on pipeline 123 and connects the water source, opens during in order to moisturizing.
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 to 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, the cold well heater 258 of table, air humidifier 259, dust generator 23, noise generator 24 all are electrically connected to the PLC module.
In above-described embodiment, the scope general control of the air parameter in air pretreatment case 25 exists: temperature is 10～30 ℃, 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 the tilting pitch angle can be set to 30 °～90 °, as 45 °, 60 °, 90 ° (as Fig. 5, Fig. 6, shown in Figure 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.
Application the utility model system carries out the use procedure of mine return air heat exchanger Performance Detection test, comprises the steps:
1) open new wind adjusting air valve 255 and return air adjusting air valve 256, outdoor new wind enters the interior air mixing chamber 257 of air pretreatment case 25 by new wind air inlet 253.
2) parameter signal sensed of 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, and judge whether each parameter reaches its corresponding preset value;
If judgment result is that certainly, enter step 3);
If judgment result is that negatively, on the one hand, start 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, the PLC module continues each parameter is monitored and regulated.
The detailed process of PLC module is as follows:
1. the temperature signal sensed by the temperature sensor 41 that receives new wind air inlet 253 places of PLC module, judge whether Current Temperatures reaches preset value T
0
If judged result, is failure to actuate certainly;
If judgment result is that negatively, control 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, thus the temperature of regulating air.
2. the moisture signal sensed by the humidity sensor 42 that receives new wind air inlet 253 places of PLC module, judge whether current humidity reaches preset value T
s0
If judged result, is failure to actuate certainly;
If judgment result is that negatively, control in the air pretreatment device 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 sensed of the flow sensor 44 at air inlet 33 places of PLC module by receiving retention tower 31, judge whether present flow rate reaches preset value G
0
If judged result, is failure to actuate certainly;
If judgment result is that negatively, change the air quantity of the rotational speed regulation air of blower fan 260 by controlling air volume test regulating device 22;
4. the air-borne dust cont signal of the dust content tester 45 at air inlet 33 places of PLC module by receiving retention tower 31, judge whether current dust content reaches preset value C
0
If judged result, is failure to actuate certainly;
If judgment result is that negative, by controlling the dust content of regulating air by the dust generating capacity of dust regulator 23;
5. the noise figure signal of the noise-measuring instrument 46 at air inlet 33 places of PLC module by receiving retention tower 31, judge whether current noise figure reaches preset value L
p0
If judged result, is failure to actuate certainly;
If judgment result is that negative, by controlling noise generator 24 to regulate noise figure;
3) open water valve 124, return-air heat exchanger 36 begins spray;
4) 1. each parameter signal of sending of temperature sensor 41, humidity sensor 42, flow sensor 44, dust content tester 45 and the noise-measuring instruments 46 in PLC module admission of air pretreatment unit 2, and judge whether each parameter reaches its corresponding preset value;
If judgment result is that certainly, enter step 5);
If judgment result is that negatively, start 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;
The PLC module to the concrete control procedure of the temperature in the air pretreatment device, humidity, flow, dust content and noise figure as step 2) as described in;
2. the PLC module receives the temperature signal that water inlet 361 place's temperature sensors 41 of return-air heat exchanger 36 are sensed, and judges whether Current Temperatures reaches preset value T
w0
If judged result, is failure to actuate certainly;
If judgment result is that negatively, control source pump unit 12 and regulate return-air heat exchanger 36 inflow temperatures;
3. the PLC module receives the water flow signal that water inlet 361 place's flow sensors 44 of return-air heat exchanger 36 are sensed, and judges whether present flow rate reaches preset value W
0
If judged result, is failure to actuate certainly;
If judgment result is that negatively, detect by controlling the water yield rotating speed that regulating device 37 changes ebullator 363, and then change the discharge at water inlet 361 places;
5) enter retention tower 31 through the air after the processing of air pretreatment device, 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 wet exchange of the spray water mist of mine return air heat exchanger 36 and 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 that sets, 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
Advance, 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 when 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 of mine return air heat exchanger sophistication X:
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 only are used for explanation the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (7)
1. 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; Be disposed with an air volume test regulating device, a dust generator and a noise generator on described the first pipeline;
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 the return air that passes through after mine return air heat exchanger is processed by a return air duct, and a return air adjusting air valve is set on return air duct;
New wind air inlet place in described air pretreatment case and return air air inlet place arrange an air mixing chamber; Near setting gradually table cold well heater, an air humidifying equipment and a blower fan 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 to 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 trunk line by one the 3rd pipeline, and described trunk line connects the water inlet of described the second source pump unit by one first ebullator; Be provided with online water treatment facilities on the 3rd pipeline; The trunk line of described source pump unit also connects one the 4th pipeline, a water valve is set on described the 5th pipeline and connects the 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 by the water delivering orifice of a pipeline with described the second pumping set unit; One water yield is set on described the 5th pipeline detects regulating device, the described water yield detects regulating device and regulates flow and the pressure of shower water by controlling described the second ebullator;
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 to the 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 all are electrically connected to described PLC module;
Described temperature sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, the air inlet place of the cold heater outlet of table place, retention tower and air outlet place, the water inlet of return-air heat exchanger and the water outlet of collection chamber;
Described humidity sensor is separately positioned in new wind air inlet place, return air air inlet place, air mixing chamber, the air inlet place of air humidifying equipment exit, retention tower and air outlet place;
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: each described 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, it 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 be streamlined and tilting in a kind of.
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 a kind of in 45 ° and 60 ° and 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 ℃, and humidity: 70%～90%, dustiness: 0～90mg/m
3, noise figure: 0～150dB (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605611 CN202928612U (en) | 2012-11-16 | 2012-11-16 | Performance detection system of mine return air heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605611 CN202928612U (en) | 2012-11-16 | 2012-11-16 | Performance detection system of mine return air heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928612U true CN202928612U (en) | 2013-05-08 |
Family
ID=48218566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605611 Withdrawn - After Issue CN202928612U (en) | 2012-11-16 | 2012-11-16 | Performance detection system of mine return air heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928612U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937464A (en) * | 2012-11-16 | 2013-02-20 | 北京矿大节能科技有限公司 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
| CN103674469A (en) * | 2013-12-13 | 2014-03-26 | 湖南科技大学 | Experimental method for coupling pipe network operating characteristics of mine fans and device thereof |
| CN107643187A (en) * | 2017-11-07 | 2018-01-30 | 北京奥博汽车电子电器有限公司 | Air heater comprehensive performance testing system |
| CN111678271A (en) * | 2020-05-06 | 2020-09-18 | 山东省煤田地质局第四勘探队 | Mine wind source waste heat utilization and air conditioning system |
-
2012
- 2012-11-16 CN CN 201220605611 patent/CN202928612U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937464A (en) * | 2012-11-16 | 2013-02-20 | 北京矿大节能科技有限公司 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
| CN102937464B (en) * | 2012-11-16 | 2014-12-10 | 北京矿大节能科技有限公司 | Performance detection testing system of mine air returning heat exchanger and using method thereof |
| CN103674469A (en) * | 2013-12-13 | 2014-03-26 | 湖南科技大学 | Experimental method for coupling pipe network operating characteristics of mine fans and device thereof |
| CN103674469B (en) * | 2013-12-13 | 2016-07-06 | 湖南科技大学 | The experimental technique of mine fan coupling pipe network operation characteristic and device thereof |
| CN107643187A (en) * | 2017-11-07 | 2018-01-30 | 北京奥博汽车电子电器有限公司 | Air heater comprehensive performance testing system |
| CN107643187B (en) * | 2017-11-07 | 2023-09-05 | 北京奥博汽车电子电器有限公司 | Air Heater Comprehensive Performance Test System |
| CN111678271A (en) * | 2020-05-06 | 2020-09-18 | 山东省煤田地质局第四勘探队 | Mine wind source waste heat utilization and air conditioning system |
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