A method and device for measuring and controlling environmental parameters of a closed explosion-proof space

Abstract

The present invention discloses a method and device for measuring and controlling environmental parameters of a closed explosion-proof space, including an air extraction circulation measuring device and an outdoor air control device. An air intake port and an air delivery port are provided at diagonal angles in the closed explosion-proof space; sensors for temperature, humidity, oxygen content, volatile organic compounds (VOCs), etc. are provided in the air extraction circulation measuring device; a honeycomb-type rotor air parameter adjustment and control system is provided in the outdoor air control device, and a honeycomb-type rotor regeneration process is provided; at the same time, an insulating anti-static module is provided in the air inlet and outlet pipes of the closed explosion-proof space. Through the outdoor circulation measuring device of air parameters and the outdoor control device of air parameters, safe measurement and control of environmental parameters in the closed explosion-proof space can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental parameter measurement and regulation control of special buildings, and in particular relates to an environmental parameter measurement and regulation method and device for a closed explosion-proof space. Background Art

[0002] In some special building applications, some building spaces need to be strictly sealed and explosion-proof, but it is also necessary to strictly monitor the air environment parameters of the sealed explosion-proof space and make parameter adjustments in time to meet the special requirements of the building space. At the same time, due to the requirements of sealing and explosion-proof, any items that can cause static electricity, strong current, weak current equipment and instrument components, etc. cannot appear in the sealed explosion-proof space, and the frequency of personnel entering and exiting should be minimized to reduce the potential risks of the sealed explosion-proof space. Therefore, traditional air environment parameter measurement and air conditioning methods and devices are difficult to meet the special requirements of sealed explosion-proof spaces.

[0003] Therefore, in this specific application scenario and under strict environmental requirements, how to achieve passive measurement of air environmental parameters, truly reflect the environmental parameters of the closed explosion-proof space, and perform safe parameter adjustment and control in a timely manner has always been the focus and difficulty of research.

[0004] In the prior art, there are air conditioning technologies for environmental parameters of enclosed spaces, such as the patent "Integrated environmental control system and method for controlling the ambient temperature of enclosed spaces" (CN201210593012); the patent "Air conditioning system for enclosed spaces and its working method" (CN201310299703); the patent "Air conditioning system for enclosed spaces" (CN201320425218); the patent "Air conditioning device for enclosed spaces" (CN201320425220); the patent "Fresh air system for enclosed spaces" (CN201620508667); Patent "Apparatus and method for purifying gas in closed space" (CN201611268276); Patent "Enclosed space air regeneration system and method" (CN201710850111); Patent "Enclosed space environmental control system" (CN201810402271), etc., although they all involve various air conditioning measures in closed spaces, their technical details all place sensors or some instruments and equipment, and electronic components in closed spaces, which do not meet the strict requirements of closed and explosion-proof. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, according to the above background technology and the actual situation of specific application scenarios, the present invention, on the basis of strictly complying with the requirements of closed explosion-proof spaces, achieves the purpose of measuring and adjusting the environmental parameters of closed explosion-proof spaces by drawing out the air from the closed explosion-proof space for circulation measurement and adjustment control, supplemented by necessary insulation and anti-static insulation measures.

[0006] The present invention is achieved through the following technical solutions.

[0007] The present invention provides an environmental parameter measurement and control device for a closed explosion-proof space, comprising a closed explosion-proof space, a circulating air parameter measurement device and an air conditioning control device;

[0008] The outside of the closed explosion-proof space is connected in parallel to a circulating air parameter measuring device and an air conditioning control device, and the air conditioning control device is connected to outdoor air;

[0009] The circulating air parameter measuring device is connected to an air parameter measuring device through a circulating pipeline, and a sensor is arranged inside the air parameter measuring device;

[0010] The air conditioning control device is connected to the air conditioning control device through a circulation pipeline, and the interior of the air conditioning control device is divided into two air processing areas and air regeneration areas that are not connected to each other by a honeycomb rotor;

[0011] The circulating air parameter measuring device and the air conditioning control device are connected together through a circulating pipeline and introduced into an air inlet and an air intake in the closed explosion-proof space.

[0012] Furthermore, the circulation duct is introduced with an air inlet and an air inlet, at which air sealing and insulating static removal modules are respectively provided; and the air inlet and the air inlet are arranged diagonally, and the end port is a bell-mouth type.

[0013] Furthermore, the circulation pipe and the joint for connecting the air intake port to the air delivery port are made of polypropylene, polyvinyl chloride, polybutylene or polyethylene.

[0014] Furthermore, the circulating air parameter measuring device is connected to the air intake port, the first air sealing and insulating static removal module, the first tee, the first fan and the first valve, the air parameter measuring device, the second valve, the second tee, the second air sealing and insulating static removal module and the air inlet in sequence through a circulating pipe to form a circulating loop.

[0015] Furthermore, the interior of the air parameter measuring device is divided into an air flow channel and a sensor arrangement channel by louvers, and the sensor arrangement channel is respectively provided with a temperature sensor, a humidity sensor, an oxygen content sensor and a VOCs sensor.

[0016] Furthermore, the air conditioning control device comprises a first three-way valve connected to a second fan, a third valve, an air conditioning control device, and a fourth valve connected to a second three-way valve in sequence through a circulation pipeline; the air conditioning control device (3) is also provided with a driving motor and a circulation pipe connected to outdoor air.

[0017] Furthermore, the area of ​​the air processing area of ​​the air conditioning control device accounts for 2 / 3, the area of ​​the air regeneration area accounts for 1 / 3, and the honeycomb rotor is driven by a motor.

[0018] Furthermore, a fifth valve and a third fan are provided on the circulation duct of the outdoor air.

[0019] Furthermore, each circulation pipeline, valve, fan, sensor of the circulating air parameter measuring device and the air conditioning control device, as well as the outer sides of the air parameter measuring device and the air conditioning control device are subjected to heat insulation and anti-static insulation treatment.

[0020] The present invention also provides a method for measuring and controlling environmental parameters of a closed explosion-proof space of the device, comprising the following steps:

[0021] Open the valve of the circulating air parameter measuring device and start the first fan, close the valve of the air conditioning control device, and allow the air in the closed explosion-proof space to flow through the air parameter measuring device to measure the parameters;

[0022] When the data measured by the air parameter measuring device exceeds the set value upper limit of the closed explosion-proof space, the third valve, the fourth valve and the second fan of the air conditioning control device are opened, and the honeycomb rotor is started to rotate; the air inside the closed explosion-proof space passes through the air processing area of ​​the air conditioning control device for dehumidification, temperature adjustment, dust removal and adsorption treatment;

[0023] At the same time, the fifth valve and the third fan are opened to introduce outdoor air to regenerate the air regeneration area of ​​the air conditioning control device; until the parameters of the closed explosion-proof space reach the lower limit of the set value, the air conditioning control device, all valves and fans are closed;

[0024] The sensors in the air parameter measuring device monitor the actual air values ​​in the closed explosion-proof space in real time and transmit them to the control center.

[0025] Compared with the prior art, the present invention adopts a passive air measurement method and an external circulation parameter adjustment control method for closed explosion-proof spaces, and realizes safe measurement and regulation of environmental parameters of closed explosion-proof spaces through an outdoor circulation measurement device for air parameters and an outdoor control device for air parameters. By arranging an insulating anti-static module in the air inlet and outlet pipes of the closed explosion-proof space, potential dangerous factors in the closed explosion-proof space are eliminated, and automatic measurement and automatic adjustment of parameters are realized, so that the safety and reliability of parameter measurement and parameter regulation of the system are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is the structural process and principle diagram of the present invention.

[0028] In the figure: 1. closed explosion-proof space; 2. air parameter measuring device; 3. air conditioning control device; 3', air processing area; 3", air regeneration area; 4. first fan; 5. first valve; 6. second valve; 7. second fan; 8. third valve; 9. fourth valve; 10. air inlet; 11. air intake; 12. fifth valve; 13. first insulating static elimination module; 14. second insulating static elimination module; 15. first three-way; 16. second three-way; 17. third fan; 18. outdoor intake; 19. motor. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] Reference Figure 1 As shown, a schematic diagram of the structure of the environmental parameter measurement and control device of the closed explosion-proof space is given, and an air inlet 10 and an air intake 11 are respectively arranged at the diagonals of the closed explosion-proof space 1; a circulating air parameter measurement device and an outlet air conditioning control device are arranged in parallel on the outside of the closed explosion-proof space 1.

[0031] Among them, the connection method of the air parameter measuring device is: the air intake port 11 of the closed explosion-proof space is connected to the first tee 15, one side of the first tee 15 is connected to the first fan 4, the first valve 5, the air parameter measuring device 2, the valve 6 to the second tee 16 in sequence, and one side of the second tee 16 is connected to the air delivery port 10 of the closed explosion-proof space.

[0032] The interior of the air parameter measuring device 2 is divided into two parts by louvers, one side of the louvers is an air flow channel, and the other side of the louvers is a sensor arrangement channel, which is arranged with temperature, humidity, oxygen content, VOCs and other parameter sensors. The louver design in the two channels can measure the parameters of the air passing through the air parameter measuring device 2 without affecting the accuracy of the sensor due to excessive disturbance of the fluid.

[0033] The connection method of the air conditioning control device is as follows: the air intake port 11 is connected to the first tee 15, and the other side of the first tee 15 is connected in sequence to the second fan 7, the third valve 8, the air conditioning control device 3, the fourth valve 9, the second tee 16 to the air inlet 10 of the closed explosion-proof space.

[0034] The end ports of the air inlet 10 and the air inlet 11 at opposite corners of the closed explosion-proof space are provided with bell-mouth rectifiers, which are made of heat-insulating plastic material.

[0035] The air inlet 11 is provided with an air seal and a first insulating static elimination module 13 at the outlet of the closed explosion-proof space pipeline; the air inlet 10 is provided with an air seal and a second insulating static elimination module 14 at the outlet of the closed explosion-proof space pipeline.

[0036] The main body of the air conditioning control device 3 is a honeycomb rotor, which is driven by a motor 19. The rotor is divided into two left and right air treatment areas 3' and an air regeneration area 3", which are not connected to each other. The air treatment area 3' is used to adjust the air temperature and humidity and adsorb volatile organic compounds (VOCs) in the air, and the air regeneration area 3" is a regeneration area; the connection method of the air regeneration area 3" is that the outdoor air intake port 18 is connected to the fifth valve 12, and then connected to the air regeneration area 3" of the air conditioning control device 3 to the third fan 17.

[0037] All pipes and joints used to connect the air inlet 11 to the air delivery port 10 are made of plastic materials such as polypropylene, polyvinyl chloride, polybutylene, polyethylene, etc. All pipes, joints, valves, tees, fans, sensor access terminals, etc. used to connect the air inlet 11 to the air delivery port 10 are insulated and anti-static; the outsides of the air parameter measuring device 2 and the air conditioning control device 3 are insulated and anti-static.

[0038] All thermal insulation and anti-static insulation treatments are designed to meet the airtight and explosion-proof requirements of closed explosion-proof spaces to reduce potential risks in closed explosion-proof spaces.

[0039] In order to realize the passive measurement of air environment parameters and truly reflect the environmental parameters of the closed explosion-proof space, the following methods can be used:

[0040] Open the valve of the circulating air parameter measuring device and start the first fan, close the valve of the air conditioning control device, and allow the air in the closed explosion-proof space 1 to flow through the air parameter measuring device 2 for parameter measurement;

[0041] When the data measured by the air parameter measuring device exceeds the set value upper limit of the closed explosion-proof space, the third valve 8, the fourth valve 9 and the second fan 7 of the air conditioning control device are opened, the motor is started, the honeycomb rotor starts to rotate, and the internal air of the closed explosion-proof space passes through the large area 3' of the air conditioning control device 3 for dehumidification, temperature control, dust removal and adsorption treatment; at the same time, the fifth 12 and the third fan 17 are opened, and outdoor air is introduced to regenerate the small area 3" of the air conditioning control device 3; until the parameters of the closed explosion-proof space reach the set value lower limit, then the third valve 8, the fourth valve 9 and the second fan 7 of the air conditioning control device are closed, the fifth valve 12 and the third fan 17 are closed, and the honeycomb rotor motor 19 is turned off; the sensor in the air parameter measuring device 2 monitors the actual measured value of the air in the closed explosion-proof space 1 in real time and transmits it to the control center.

[0042] The circulating air parameter measurement process is: from the air intake port 11-the first insulating static removal module 13-the first three-way 15-the first fan 4-the first valve 5-the air parameter measurement device 2-the second valve 6-the second three-way 16-the second insulating static removal module 14-the air supply port 10, it is always running to measure the parameters.

[0043] The air conditioning and control process is: air intake port 11 - first insulating static removal module 13 - first three-way valve 15 - second fan 7 - third valve 8 - large area of ​​air conditioning control device 3' - fourth valve 9 - second three-way valve 16 - second insulating static removal module 14 - air supply port 10.

[0044] The air regeneration process is: outdoor air intake 18-fifth valve 12-air conditioning control device small area 3"-third fan 17. The operation is started and closed according to the measurement results of the circulating air parameter measurement process: air intake 11-first insulation and static removal module 13-first three-way 15-first fan 4-first valve 5-air parameter measurement device 2-second valve 6-second three-way 16-second insulation and static removal module 14-air supply port 10.

[0045] Through the system of the present invention, a passive measurement method of air and an external circulation parameter adjustment control method are adopted for closed explosion-proof spaces to realize automatic measurement and automatic adjustment of parameters, reduce the frequency of personnel entering and exiting the closed explosion-proof space, eliminate potential dangerous factors in the closed explosion-proof space from the mechanism and process, and greatly improve the safety and reliability of the system's parameter measurement and parameter adjustment.

[0046] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A device for measuring and controlling environmental parameters in a closed explosion-proof space, characterized in that: It comprises a closed explosion-proof space (1), a circulating air parameter measuring device and an air conditioning control device; The closed explosion-proof space (1) is connected in parallel to a circulating air parameter measuring device and an air conditioning control device outside, and the air conditioning control device is connected to outdoor air; The circulating air parameter measuring device is connected to an air parameter measuring device (2) through a circulating pipeline, and a sensor is arranged inside the air parameter measuring device (2); The air conditioning control device is connected to an air conditioning control device (3) through a circulation pipeline, and the interior of the air conditioning control device (3) is divided into two air processing areas (3') and an air regeneration area (3") which are not connected to each other by a honeycomb rotor; The circulating air parameter measuring device and the air conditioning control device are connected to an air inlet (10) and an air intake (11) in the closed explosion-proof space (1) through a circulating pipeline.

2. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 1, characterized in that: The circulation duct is introduced with an air inlet (10) and an air suction port (11); the air suction port (11) is provided with an air seal and a first insulating static removal module (13) at the outlet of the closed explosion-proof space duct; the air inlet (10) is provided with an air seal and a second insulating static removal module (14) at the outlet of the closed explosion-proof space duct; and the air inlet (10) and the air suction port (11) are arranged diagonally, and the end port is a bell-mouth type.

3. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 2, characterized in that: The circulation pipe and the joint used for connecting the air suction port (11) to the air delivery port (10) are made of polypropylene, polyvinyl chloride, polybutylene or polyethylene.

4. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 2, characterized in that: The circulating air parameter measuring device is connected in sequence through a circulating pipeline to an air intake port (11), a first air sealing and insulating static removal module (13), a first three-way valve (15), a first fan (4) and a first valve (5), an air parameter measuring device (2), a second valve (6), a second three-way valve (16), a second air sealing and insulating static removal module (14) and an air supply port (10) to form a circulating loop.

5. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 1, characterized in that: The air parameter measuring device (2) is internally divided into an air flow channel and a sensor arrangement channel by louvers, and the sensor arrangement channel is respectively provided with a temperature sensor, a humidity sensor, an oxygen content sensor and a VOCs sensor.

6. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 1, characterized in that: The air conditioning control device comprises a first three-way valve (15) connected to a second fan (7), a third valve (8), an air conditioning control device (3), and a fourth valve (9) connected to a second three-way valve (16) in sequence through a circulation pipeline; the air conditioning control device (3) is also provided with a driving motor (19) and a circulation pipe connected to outdoor air.

7. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 6, characterized in that: The area of ​​the air processing area (3') of the air conditioning control device (3) accounts for 2 / 3, the area of ​​the air regeneration area (3") accounts for 1 / 3, and the honeycomb rotor is driven by a motor (19).

8. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to claim 6, characterized in that: The outdoor air circulation pipeline is provided with a fifth valve (12) and a third fan (17).

9. The device for measuring and controlling environmental parameters of a closed explosion-proof space according to any one of claims 1 to 8, characterized in that: The circulation pipes, valves, fans, sensors of the circulating air parameter measuring device and the air conditioning control device, as well as the outer sides of the air parameter measuring device (2) and the air conditioning control device (3) are subjected to heat insulation and anti-static treatment.

10. A method for measuring and controlling environmental parameters of a closed explosion-proof space of the device according to claim 9, characterized in that: The steps include: Opening the valve of the circulating air parameter measuring device and starting the first fan, closing the valve of the air conditioning control device, and allowing the air in the closed explosion-proof space (1) to flow through the air parameter measuring device (2) to measure the parameters; When the data measured by the air parameter measuring device (2) exceeds the upper limit of the set value of the closed explosion-proof space (1), the third valve (8), the fourth valve (9) and the second fan (7) of the air conditioning control device are opened, and the honeycomb rotor is started to rotate; the air inside the closed explosion-proof space (1) passes through the air processing area (3') of the air conditioning control device (3) for dehumidification, temperature control, dust removal and adsorption treatment; At the same time, the fifth valve (12) and the third fan (17) are opened to introduce outdoor air to regenerate the air regeneration area (3") of the air conditioning control device (3); until the parameters of the closed explosion-proof space (1) reach the lower limit of the set value, the air conditioning control device and all valves, fans and drive motors are closed; The sensor in the air parameter measuring device (2) monitors the actual measured value of the air in the closed explosion-proof space (1) in real time and transmits it to the control center.

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