CN116066956A - Dust-free workshop is with monitoring integrated equipment of taking a breath and exhaust treatment - Google Patents
Dust-free workshop is with monitoring integrated equipment of taking a breath and exhaust treatment Download PDFInfo
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- CN116066956A CN116066956A CN202310124112.7A CN202310124112A CN116066956A CN 116066956 A CN116066956 A CN 116066956A CN 202310124112 A CN202310124112 A CN 202310124112A CN 116066956 A CN116066956 A CN 116066956A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to the technical field of monitoring ventilation, which is used for solving the problems of high energy consumption and quick equipment aging caused by the lack of an intelligent detection and adjustment link in the constant power operation of conventional fresh air equipment when in use, in particular to integrated equipment for monitoring ventilation and waste gas treatment for a dust-free workshop; according to the invention, the return air pipe and the air flow controller are provided with two groups of return air inlets, the filter, the heating and humidifying mechanism is arranged between the two groups of return air inlets, the air channel of air flow is changed by changing the opening of the valves of the two groups of return air inlets, so that the air flow passing through the filter, the heating and humidifying mechanism is changed, the purification, heating or humidifying effect of the air flow is realized, dust and microorganisms in an SMT workshop are monitored by the dust monitoring unit, the opening of the valves of the two groups of return air inlets is automatically regulated, the pressure of the workshop is detected by the pressure monitoring unit of the workshop, and the air inlet is regulated by the controller so that the positive pressure value of the pressure of the workshop is always kept at a qualified level.
Description
Technical Field
The invention relates to the technical field of monitoring ventilation, in particular to integrated equipment for monitoring ventilation and waste gas treatment for a dust-free workshop.
Background
In the current market, the requirements on the processing environment and the process environment of the PCBA are more stringent, even on the environment after ventilation and purification, and the requirements on the functional stability of the PCBA are more stringent because the PCBA is a core component of all electronic related products, so that devices such as fresh air ventilation equipment and the like are often arranged in the production and processing environment of the PCBA to ensure the air of the processing environment to be clean;
however, the existing fresh air or ventilation equipment still has the defects that in the prior art, in the using process of the fresh air or ventilation equipment, a constant-power fresh air intake and filtration system is adopted for most of the fresh air intake and filtration systems so as to ensure the air pressure and dust-free environment of a production workshop, the constant-power fresh air intake is used for ventilation and air intake work at the maximum degree all the time, so that the equipment operation load is high, the energy consumption is increased, meanwhile, the filtration system is seriously aged and blocked due to the heavy-load work of the filtration system, the equipment maintenance is required to be frequently carried out, the production cost is not reduced, and therefore, a set of integrated equipment for complete dust monitoring, ventilation and purification and waste gas treatment is required to solve the problem, so that the delivery quality and the environmental protection requirements of products are met;
aiming at the technical problems, the application provides a solution.
Disclosure of Invention
According to the invention, the return air pipe and the air flow controller are provided with two groups of return air inlets, the filter, the heating and humidifying mechanism are arranged between the two groups of return air inlets, the air channel of the air flow is changed by changing the opening of the valves of the two groups of return air inlets, so that the air flow is changed, the purification, heating or humidifying effect of the air flow is realized, dust and microorganisms in the SMT workshop are monitored by the dust monitoring unit, the valve opening of the two groups of return air inlets is automatically regulated, the flow direction distribution of the air is changed, a large amount of the air recovered from the SMT workshop passes through the primary filter, the medium-efficiency filter and the high-efficiency filter, thus the air in the workshop is filtered, the dust-free workshop always needs to keep a positive pressure value to a certain extent to ensure the dust-free effect, the pressure monitoring unit of the workshop detects the pressure of the workshop, when the positive pressure value of the workshop does not reach the pressure value required by production, the controller always keeps the air inlet quantity at a constant power operation when the positive pressure value of the workshop is used, the conventional fresh air equipment is in a qualified level, the problem of high energy consumption of the equipment, the equipment is caused by the lack of intelligent detection, the waste air is rapidly treated by the monitoring and the dust-free workshop is aged.
The aim of the invention can be achieved by the following technical scheme:
the dust-free workshop is provided with integrated equipment for monitoring ventilation and waste gas treatment, and comprises an SMT workshop and an airflow controller, wherein the upper part of the SMT workshop is connected with an air return pipe through an air supply pipe, the air flow direction in the air supply pipe flows from the inside of the air flow controller to the inside of the SMT workshop, and the air flow direction in the air return pipe flows from the inside of the SMT workshop to the inside of the air flow controller;
the utility model discloses a SMT workshop, including SMT workshop, air current passageway, air current control module, SMT workshop internal fixation has production facility, the air return entry has been seted up to SMT workshop both sides, the air current passageway has been seted up to SMT workshop lateral wall inside the top that is located the air return entry, this air current passageway top is linked together with the return air pipe, the return air pipe is located the SMT workshop top and has two sets of tie points, the return air pipe is located the air current control device top and is provided with two sets of tie points of first return air inlet and second return air inlet, the air intake has been seted up to the air current control device lateral wall, the air current control device is inside to begin fixed mounting in proper order from the one side that is close to the air intake has primary filter, humidification section, heating section, air supply fan and well effect filter, primary effect filter, humidification section and heating section are located between two sets of tie points of first return air inlet and second return air inlet, separate these two sets of tie points, air supply fan, well effect filter is located between second return air inlet and the tie point of air supply fan and air current control device, part fixed mounting that the air supply fan is located the inside the SMT workshop, high effect filter is located the production facility directly over the air flow control device, air flow control device is located the valve fixed mounting in the workshop.
As a preferred embodiment of the present invention, the control module includes a main control platform, a pressure monitoring unit, a dust monitoring unit, an execution control unit, and an operation monitoring unit.
As a preferred embodiment of the present invention, the pressure monitoring unit collects static pressure inside the SMT shop, static pressure outside the SMT shop and static pressure inside the airflow controller through the pressure sensor, analyzes the collected static pressure, calculates static pressure difference inside and outside the SMT shop, static pressure difference between the SMT shop and the airflow controller, and compares and analyzes the static pressure difference inside and outside the SMT shop and the static pressure difference between the SMT shop and the airflow controller, and generates a pressurizing signal when the static pressure difference inside and outside the SMT shop is less than a preset inside and outside static pressure difference threshold;
generating a pressurizing signal when the static pressure difference between the SMT workshop and the airflow controller is smaller than a preset internal and external static pressure difference threshold value and the static pressure difference between the interior and the exterior of the SMT workshop is smaller than the preset internal and external static pressure difference threshold value;
when the static pressure difference between the SMT workshop and the airflow controller is smaller than a preset internal and external static pressure difference threshold value, and the static pressure difference between the interior and the exterior of the SMT workshop is larger than or equal to the preset internal and external static pressure difference threshold value, a decompression signal is generated, and the supercharging signal or the decompression signal is sent to the main control platform.
As a preferred implementation mode of the invention, the dust monitoring unit obtains the dust density, the temperature and the humidity in the SMT workshop through the sensor, compares and analyzes the dust density, the temperature and the humidity in the SMT workshop, generates a dust removal signal when the dust density in the SMT workshop is more than or equal to a preset dust density safety threshold value, generates a heating signal when the temperature in the SMT workshop is less than or equal to a preset temperature threshold value, generates a humidifying signal when the humidity in the SMT workshop is less than or equal to a preset humidity threshold value, sends the dust removal signal, the heating signal and the humidifying signal to the main control platform, generates a ventilation signal when the main control platform receives any one of the dust removal signal, the heating signal and the humidifying signal, and generates a normal operation signal when the main control unit does not receive any one of the dust removal signal, the heating signal and the humidifying signal.
As a preferred embodiment of the present invention, the operation monitoring unit is configured to obtain gas pressures at two sides of the primary filter, the medium-efficiency filter, and the high-efficiency filter, calculate a difference between the gas pressures at two sides, record the difference as a pressure loss difference, compare the pressure loss difference at two sides of the primary filter with a preset pressure loss difference threshold, generate a primary filter blocking signal if the pressure loss difference is greater than the preset primary pressure loss difference threshold, generate a medium-efficiency filter blocking signal if the pressure loss difference at two sides of the medium-efficiency filter is greater than the preset medium-efficiency pressure loss difference threshold, generate a high-efficiency filter blocking signal if the pressure loss difference at two sides of the high-efficiency filter is greater than the preset high-efficiency pressure loss difference threshold, and send the primary filter blocking signal, the medium-efficiency filter blocking signal, or the high-efficiency filter blocking signal to the master platform, where the master platform sends a blocking alert of a corresponding device according to the received blocking signal.
As a preferred embodiment of the present invention, the execution control unit may acquire a ventilation signal, a normal operation signal, a pressure increasing signal, and a pressure reducing signal through the main control platform;
when the execution control unit acquires the ventilation signal, the execution control unit sends an instruction to the controller, and the controller reduces the valve opening at the second air return port and increases the valve opening at the first air return port;
when the execution control unit acquires a normal operation signal, the execution control unit sends an instruction to the controller, and the controller reduces the valve opening at the first air return port and increases the valve opening at the second air return port;
when the execution controller receives the supercharging signal, the execution control unit sends an instruction to the controller, and the controller increases the running power of the air supply fan;
when the execution controller receives the decompression signal, the execution controller sends an instruction to the controller, and the controller increases the running power of the air supply fan and reduces the opening of the valve at the air inlet.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, dust and microorganisms in an SMT workshop are monitored through the dust monitoring unit, when the dust monitoring unit exceeds the safety threshold value of the maximum allowable quantity, the valve opening of the two groups of air return openings is changed, so that a large amount of gas recovered from the SMT workshop passes through the primary filter, the medium-efficiency filter and the high-efficiency filter, the gas in the workshop is filtered, and meanwhile, the gas is continuously updated by combining with external fresh air, so that the gas in the SMT workshop is ensured to meet the production requirement.
2. In the invention, because the dust-free workshop needs to always keep a positive pressure value to a certain extent so as to ensure the dust-free effect, the pressure of the workshop is detected by the pressure monitoring unit of the workshop, and when the positive pressure value of the workshop pressure does not reach the pressure value required by production, the air inlet quantity is increased by the controller so as to realize that the positive pressure value of the workshop pressure is always kept at a qualified level.
3. In the invention, the return air pipe and the air flow controller are provided with two groups of return air inlets, and the filter, the heating and humidifying mechanism is arranged between the two groups of return air inlets, so that the air channel of the air flow is changed by changing the opening of the valves of the two groups of return air inlets, and the air flow passing through the filter, the heating and humidifying mechanism is changed, and the purification, heating or humidifying effect of the air flow is realized.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the front view of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a system block diagram of the present invention.
In the figure: 1. an SMT workshop; 2. an air flow controller; 3. an air supply pipe; 4. an air return pipe; 5. a primary filter; 6. a humidification section; 7. a heating section; 8. an air supply fan; 9. a medium-efficiency filter; 10. an air inlet; 11. a return air inlet; 12. production equipment; 13. a high-efficiency filter; 14. a first return air inlet; 15. and a second air return port.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-3, the dust-free workshop is provided with an integrated device for monitoring ventilation and waste gas treatment, and comprises an SMT workshop 1 and a gas flow controller 2, wherein the upper part of the SMT workshop 1 and the gas flow controller 2 are connected through a blast pipe 3 and a return pipe 4, so that gas exchange between the SMT workshop 1 and the gas flow controller 2 is realized, the air flow direction in the blast pipe 3 flows from the inside of the gas flow controller 2 to the inside of the SMT workshop 1, fresh air is sent into the SMT workshop 1, meanwhile, positive pressure in the SMT workshop 1 is ensured, and the air flow direction in the return pipe 4 flows from the inside of the SMT workshop 1 to the inside of the gas flow controller 2;
the production equipment 12 is fixedly installed in the SMT workshop 1, the return air inlets 11 are formed in the two sides of the SMT workshop 1, the air flow channel is formed in the side wall of the SMT workshop 1 and located above the return air inlets 11, the top end of the air flow channel is communicated with the return air pipe 4, the return air pipe 4 is located above the SMT workshop 1 and provided with two groups of connecting points, the return air pipe 4 is located above the air flow controller 2 and provided with a first return air inlet 14 and a second return air inlet 15, the side wall of the air flow controller 2 is provided with the air inlet 10, the air flow controller 2 is internally provided with the primary filter 5, the humidification section 6, the heating section 7, the air supply fan 8 and the middle-effect filter 9 in sequence from one side close to the air inlet 10, the primary filter 5, the humidification section 6 and the heating section 7 are located between the two groups of connecting points of the first return air inlet 14 and the second return air inlet 15, the two groups of connecting points are separated, the air supply fan 8, the middle-effect filter 9 is located between the connecting points of the second return air inlet 15 and the air supply pipe 3 and the air flow controller 2, the part of the air supply pipe 3 located inside the SMT workshop 1 is fixedly provided with the high-effect filter 13, the high-effect filter 13 is located above the production equipment 12, the positive-adjustable valve 3 and the adjustable valve 4 is located in the air inlet 1, the adjustable valve is connected with the first return air inlet 14 and the adjustable valve 1, the adjustable valve is fixedly arranged in the air flow controller 1, and the adjustable valve is connected with the air inlet 1.
Embodiment two:
referring to fig. 1-3, the control module includes a main control platform, a pressure monitoring unit, a dust monitoring unit, an execution control unit and an operation monitoring unit, wherein the pressure monitoring unit collects static pressure inside the SMT workshop 1, static pressure outside the SMT workshop 1 and static pressure inside the airflow controller 2 through pressure sensors, analyzes the collected static pressure, calculates static pressure difference inside and outside the SMT workshop 1 and static pressure difference between the SMT workshop 1 and the airflow controller 2, and performs comparison analysis on the static pressure difference inside and outside the SMT workshop 1 and the static pressure difference between the SMT workshop 1 and the airflow controller 2, and generates a pressurizing signal when the static pressure difference inside and outside the SMT workshop 1 is smaller than a preset internal and external static pressure difference threshold;
generating a pressurizing signal when the static pressure difference between the SMT workshop 1 and the airflow controller 2 is smaller than a preset internal and external static pressure difference threshold value and the static pressure difference between the inside and the outside of the SMT workshop 1 is smaller than the preset internal and external static pressure difference threshold value;
when the static pressure difference between the SMT workshop 1 and the airflow controller 2 is smaller than a preset internal and external static pressure difference threshold value and the static pressure difference between the inside and the outside of the SMT workshop 1 is larger than or equal to the preset internal and external static pressure difference threshold value, a decompression signal is generated, and the supercharging signal or the decompression signal is sent to the main control platform.
The dust monitoring unit obtains the dust density, the temperature and the humidity in the SMT workshop 1 through the sensors, the sensors are adopted as the dust analyzer, the SO2 analyzer and the O3 analyzer, and the dust density, the temperature and the humidity in the SMT workshop 1 are compared and analyzed, when the dust density in the SMT workshop 1 is larger than or equal to a preset dust density safety threshold value, the dust quantity is indicated to not meet the requirement of safe production, a dust removal signal is generated, when the temperature in the SMT workshop 1 is smaller than or equal to a preset temperature threshold value, the workshop temperature is indicated to be too low, a heating signal is generated, when the humidity in the SMT workshop 1 is smaller than or equal to a preset humidity threshold value, the workshop humidity is indicated to be insufficient, a humidifying signal is generated, and after any one of the dust removal signal, the heating signal and the humidifying signal is received by the main control platform, a ventilation signal is generated, and when the main control platform sends one of the dust removal signal, the heating signal and the humidifying signal to the execution control unit, and when the execution control unit receives only the dust removal signal, the heating section 6 or the heating section 7 is not started, and when the execution control unit receives the heating signal or the heating section 7 is started, or the heating section is not started, and when any of the heating signal is normally received.
The operation monitoring unit is used for acquiring the gas pressures at two sides of the primary filter 5, the medium-efficiency filter 9 and the high-efficiency filter 13, calculating the difference values of the gas pressures at two sides, recording the difference values as pressure loss differences, comparing the pressure loss differences at two sides of the primary filter 5 with a preset pressure loss difference threshold value, if the pressure loss difference is larger than the preset primary pressure loss difference threshold value, indicating that the gas circulation of the primary filter 5 is difficult, generating a blocking signal of the primary filter 5, if the pressure loss difference at two sides of the medium-efficiency filter 9 is larger than the preset medium-efficiency pressure loss difference threshold value, indicating that the gas circulation of the medium-efficiency filter 9 is difficult, generating a blocking signal of the high-efficiency filter 13, and transmitting the blocking signal of the primary filter 5, the blocking signal of the medium-efficiency filter 9 or the blocking signal of the high-efficiency filter 13 to the master control platform, and the execution control unit can acquire a blocking prompt of the corresponding equipment, a normal ventilation signal, a decompression operation signal and a normal ventilation signal through the master control platform;
when the execution control unit acquires a ventilation signal, the execution control unit sends an instruction to the controller, the controller reduces the valve opening at the second air return port 15 and increases the valve opening at the first air return port 14, so that the air return pipe 4 directly returns to the air supply fan 8, less air is supplied, and most of the air enters the air supply fan 8 after passing through the primary filter 5, the humidification section 6 and the heating section 7;
when the execution control unit acquires a normal operation signal, the execution control unit sends an instruction to the controller, the controller reduces the valve opening at the first air return opening 14 and increases the valve opening at the second air return opening 15, so that most of gas directly enters the air supply fan 8, and a small part of gas enters the air supply fan 8 after passing through the primary filter 5, the humidifying section 6 and the heating section 7;
when the execution controller receives the pressurizing signal, the execution control unit sends an instruction to the controller, the controller increases the running power of the air supply fan 8, increases the air inlet quantity and improves the positive pressure in the SMT workshop 1;
when the execution controller receives the pressure reducing signal, the execution controller sends an instruction to the controller, the controller increases the running power of the air supply fan 8, increases the air inlet quantity, improves the positive pressure in the SMT workshop 1, simultaneously reduces the opening of the valve at the air inlet 10, reduces the air inlet in the air flow controller 2, leads the air in the air flow controller 2 into the SMT workshop 1, and increases the air pressure difference between the SMT workshop 1 and the air flow controller 2
The working principle of the combination of the first embodiment and the second embodiment is as follows:
according to the invention, the return air pipe 4 and the air flow controller 2 are provided with two groups of return air inlets, and the primary filter 5 and the heating and humidifying mechanism are arranged between the two groups of return air inlets, so that the air channel of the air flow is changed by changing the valve opening of the two groups of return air inlets, the air flow passing through the filter, the heating and humidifying mechanism is changed, the purification, heating or humidifying effect of the air flow is realized, dust and microorganisms in the SMT workshop 1 are monitored by the dust monitoring unit, the valve opening of the two groups of return air inlets is automatically regulated, the air flow direction distribution is changed, a large amount of air recovered from the SMT workshop 1 passes through the primary filter 5, the medium-efficiency filter 9 and the high-efficiency filter 13, the air in the workshop is filtered, the dust-free workshop is required to always maintain a certain positive pressure value, the workshop pressure is detected by the pressure monitoring unit of the workshop, and when the positive pressure value of the workshop pressure does not reach the pressure value required by production, the air inlet quantity is increased by the controller, and the positive pressure value of the workshop pressure is always kept at a qualified level.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The dust-free workshop is equipped with an integrated device for monitoring ventilation and waste gas treatment, and comprises an SMT workshop (1) and an air flow controller (2), and is characterized in that the upper part of the SMT workshop (1) and the air flow controller (2) is connected with an air supply pipe (3) and an air return pipe (4), the air flow direction in the air supply pipe (3) flows from the inside of the air flow controller (2) to the inside of the SMT workshop (1), and the air flow direction in the air return pipe (4) flows from the inside of the SMT workshop (1) to the inside of the air flow controller (2);
the utility model discloses a SMT workshop, including SMT workshop (1), production facility (12) are installed to SMT workshop (1) inside fixed mounting, return air entry (11) have been seted up to SMT workshop (1) both sides, the air current passageway has been seted up to the top that is located return air entry (11) inside SMT workshop (1) lateral wall, and this air current passageway top is linked together with return air pipe (4), return air pipe (4) are located SMT workshop (1) top and have two sets of tie points, return air pipe (4) are located two sets of tie points of air current controller (2) top be provided with first return air inlet (14) and second return air inlet (15), air current controller (2) lateral wall has seted up air intake (10), air current controller (2) inside from being close to one side of air intake (10) fixed mounting in proper order have primary filter (5), humidification section (6), heating section (7), air supply fan (8) and medium effect filter (9), primary filter (5), humidification section (6) and heating section (7) are located between two sets of tie points of first return air inlet (14) and second return air inlet (15), with this primary filter (5), air supply fan (2) and medium effect filter (9), the automatic control device is characterized in that an efficient filter (13) is fixedly arranged at the inner part of the SMT workshop (1) of the air supply pipe (3), the efficient filter (13) is arranged right above the production equipment (12), adjustable valves are fixedly arranged at the positions, connected with the SMT workshop (1) and the air flow controller (2), of the air supply pipe (3) and the air return pipe (4) respectively, a control module is fixedly arranged at the inner part of the SMT workshop (1), and the control module is in communication connection with the adjustable valves.
2. The integrated equipment for monitoring ventilation and exhaust gas treatment for a dust-free shop according to claim 1, wherein the control module comprises a main control platform, a pressure monitoring unit, a dust monitoring unit, an execution control unit and an operation monitoring unit.
3. The dust-free workshop integrated equipment for monitoring ventilation and waste gas treatment according to claim 2, wherein the pressure monitoring unit collects static pressure inside the SMT workshop (1), static pressure outside the SMT workshop (1) and static pressure inside the airflow controller (2) through the pressure sensor, analyzes the collected static pressure, calculates static pressure difference inside and outside the SMT workshop (1) and static pressure difference between the SMT workshop (1) and the airflow controller (2), compares and analyzes the static pressure difference inside and outside the SMT workshop (1) and the static pressure difference between the SMT workshop (1) and the airflow controller (2), and generates a pressurizing signal when the static pressure difference inside and outside the SMT workshop (1) is smaller than a preset inside and outside static pressure difference threshold;
generating a pressurizing signal when the static pressure difference between the SMT workshop (1) and the airflow controller (2) is smaller than a preset internal and external static pressure difference threshold value and the static pressure difference between the inside and the outside of the SMT workshop (1) is smaller than the preset internal and external static pressure difference threshold value;
when the static pressure difference between the SMT workshop (1) and the airflow controller (2) is smaller than a preset internal and external static pressure difference threshold value, and the static pressure difference between the inside and the outside of the SMT workshop (1) is larger than or equal to the preset internal and external static pressure difference threshold value, a decompression signal is generated, and the supercharging signal or the decompression signal is sent to the main control platform.
4. The dust-free workshop integrated equipment for monitoring ventilation and waste gas treatment according to claim 2, wherein the dust monitoring unit obtains dust density, temperature and humidity inside the SMT workshop (1) through the sensor, compares and analyzes the dust density, the temperature and the humidity inside the SMT workshop (1), generates a dust removal signal when the dust density inside the SMT workshop (1) is more than or equal to a preset dust density safety threshold value, generates a heating signal when the temperature inside the SMT workshop (1) is less than or equal to a preset temperature threshold value, generates a humidifying signal when the humidity inside the SMT workshop (1) is less than or equal to a preset humidity threshold value, and sends the dust removal signal, the heating signal and the humidifying signal to the main control platform, generates a ventilation signal after the main control platform receives any one of the dust removal signal, the heating signal and the humidifying signal, and generates a normal operation signal when the main control unit does not receive any one of the dust removal signal, the heating signal and the humidifying signal.
5. The dust-free workshop integrated equipment for monitoring ventilation and exhaust gas treatment according to claim 2, wherein the operation monitoring unit is used for acquiring gas pressures at two sides of the primary filter (5), the middle-efficiency filter (9) and the high-efficiency filter (13), calculating difference values of the gas pressures at two sides, recording the difference values as pressure loss differences, comparing the pressure loss differences at two sides of the primary filter (5) with preset pressure loss difference thresholds, generating a blocking signal of the primary filter (5) if the pressure loss difference is larger than the preset primary pressure loss difference threshold, generating a blocking signal of the middle-efficiency filter (9) if the pressure loss difference at two sides of the middle-efficiency filter (9) is larger than the preset middle-efficiency pressure loss difference threshold, generating a blocking signal of the high-efficiency filter (13), and sending the blocking signal of the primary filter (5), the middle-efficiency filter (9) or the high-efficiency filter (13) to the master platform, wherein the master platform sends a warning corresponding equipment according to the blocking signal.
6. The integrated equipment for monitoring ventilation and exhaust gas treatment for a dust-free shop according to claim 2, wherein the execution control unit is capable of acquiring a ventilation signal, a normal operation signal, a pressurization signal and a depressurization signal through a main control platform;
when the execution control unit acquires the ventilation signal, the execution control unit sends an instruction to the controller, and the controller reduces the valve opening at the second air return port (15) and increases the valve opening at the first air return port (14);
when the execution control unit acquires a normal operation signal, the execution control unit sends an instruction to the controller, and the controller reduces the valve opening at the first air return port (14) and increases the valve opening at the second air return port (15);
when the execution controller receives the supercharging signal, the execution control unit sends an instruction to the controller, and the controller increases the running power of the air supply fan (8);
when the execution controller receives the decompression signal, the execution controller sends an instruction to the controller, and the controller increases the running power of the air supply fan (8) and simultaneously reduces the opening of the valve at the air inlet (10).
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| CN203177403U (en) * | 2013-02-05 | 2013-09-04 | 刘新力 | Production environment functional parameter control device of drug production enterprise air purification workshop |
| CN107990516A (en) * | 2017-12-21 | 2018-05-04 | 河北工业职业技术学院 | The aspiration of negative pressure equipment |
| CN110230850A (en) * | 2019-06-07 | 2019-09-13 | 江苏亚盟净化装饰工程有限公司 | Automated cleaning dust-free workshop purification system |
| CN110455544A (en) * | 2019-08-29 | 2019-11-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | Engine testsand inlet flow field based on fixed measuring point monitors system and method |
| DE202022103607U1 (en) * | 2022-06-29 | 2022-08-29 | Sichuan Hengya Electromechanical Installation Engineering Co., Ltd. | Intelligent combined air conditioning ceiling cassette |
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2023
- 2023-02-16 CN CN202310124112.7A patent/CN116066956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203177403U (en) * | 2013-02-05 | 2013-09-04 | 刘新力 | Production environment functional parameter control device of drug production enterprise air purification workshop |
| CN107990516A (en) * | 2017-12-21 | 2018-05-04 | 河北工业职业技术学院 | The aspiration of negative pressure equipment |
| CN110230850A (en) * | 2019-06-07 | 2019-09-13 | 江苏亚盟净化装饰工程有限公司 | Automated cleaning dust-free workshop purification system |
| CN110455544A (en) * | 2019-08-29 | 2019-11-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | Engine testsand inlet flow field based on fixed measuring point monitors system and method |
| DE202022103607U1 (en) * | 2022-06-29 | 2022-08-29 | Sichuan Hengya Electromechanical Installation Engineering Co., Ltd. | Intelligent combined air conditioning ceiling cassette |
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