Working cabin, control method and fire engineering vehicle

Abstract

The present invention relates to the field of vehicle technology, and provides a work cabin, a control method and a fire engineering vehicle. The work cabin includes: a cabin body, which is provided with at least two cabins; a fan connected to the cabin and used to supply air to the cabin; a filter connected to the fan and used to filter the air; a pressure regulating component connected to the cabin body and used to control the pressure value in each cabin; when the pressure regulating component is in the first working mode, all cabins are in a positive pressure state, and the pressure of each cabin decreases gradually; when the pressure regulating component is in the second working mode, some cabins are in a positive pressure state, and when the number of cabins in a positive pressure state is greater than one, the pressure of each cabin decreases gradually. Since there is a pressure gradient between the cabins, the air mixed with pollutants in the downstream cabin cannot flow back into the upstream cabin, which solves the defect in the prior art that pollutants in the cleaning room are easily introduced into the laboratory during the return of the operator to the cabin.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a working cabin, a control method and a fire-fighting engineering vehicle. Background Art

[0002] Firefighting engineering vehicles such as detection vehicles usually need to enter toxic environments such as nuclear radiation pollution, chemical pollution or biological pollution to perform operations. In order to ensure the safety of personnel on firefighting engineering vehicles, firefighting engineering vehicles are usually equipped with positive pressure gas filtration systems to prevent toxic gases outside the vehicle from entering the vehicle.

[0003] The detection vehicle in the prior art usually includes a working cabin and a vehicle chassis. The working cabin is arranged on the vehicle chassis, and the vehicle chassis is used for driving. Among them, the working cabin can be divided into multiple cabins by partitions. The working cabin is provided with a positive pressure gas filtering system, which usually includes a fan and a filter device. The air inlet of the fan is connected to the filter device, and the air outlet is connected to each cabin to pass the filtered air into the cabin to keep the cabin in a positive pressure state.

[0004] As mentioned above, the working cabin of the detection vehicle in the prior art is equipped with multiple cabins. For example, some cabins are used as clean rooms for operators to clean, and some cabins are used as laboratories for operators to conduct inspections and analyses. The actual operation process may be: after the operator returns to the vehicle from the scene, he first enters the clean room to clean to avoid residual pollutants, and then enters the laboratory for inspection and analysis. Since the positive pressure in each cabin is basically the same, when the operator returns to the cabin, the pollutants in the clean room can easily enter the laboratory, causing the laboratory to be contaminated, so there is a safety hazard. Summary of the invention

[0005] The present invention provides a working cabin, a control method and a fire-fighting engineering vehicle, which are used to solve the defect in the prior art that pollutants in the clean room are easily introduced into the laboratory during the return of workers to the cabin, thereby achieving the effect of preventing pollutants in the clean room from entering the laboratory.

[0006] The present invention provides a working cabin, which is applied to a fire engineering vehicle, comprising:

[0007] A cabin body having at least two cabins therein;

[0008] a fan connected to the cabin and used to supply air to the cabin;

[0009] A filter device, connected to the fan, for filtering air;

[0010] A pressure regulating assembly connected to the cabin body and used to control the pressure value in each cabin;

[0011] Wherein, the pressure regulating component has a first working mode and a second working mode. When the pressure regulating component is in the first working mode, all the cabins are in a positive pressure state, and the pressure of each cabin decreases gradually. When the pressure regulating component is in the second working mode, some of the cabins are in a positive pressure state, and when the number of the cabins in the positive pressure state is greater than one, the pressure of each cabin decreases gradually.

[0012] According to a working cabin provided by the present invention, the pressure regulating assembly includes a control valve, at least two cabins are connected in series through the corresponding control valve to form an air circuit, the control valve is used to connect and disconnect the air circuits of the two connected cabins, the fan is connected to the cabin connected in series at the head end, and the control valve is configured as follows: when the pressure value of the cabin connected to the inlet end of the control valve is greater than or equal to a preset pressure value, the control valve is opened, otherwise, the control valve is closed;

[0013] Along the direction of airflow, the preset pressure value of each of the chambers connected in series gradually decreases;

[0014] When all the control valves are open, the pressure regulating assembly is in a first working mode, and when some of the control valves are open, the pressure regulating assembly is in a second working mode.

[0015] According to a working cabin provided by the present invention, the pressure regulating assembly comprises a control valve, each of the cabins is connected to the fan through the corresponding control valve, and the control valve is used to adjust the air intake volume of the corresponding cabin;

[0016] When all the control valves are open, the pressure regulating assembly is in a first working mode, and when some of the control valves are open, the pressure regulating assembly is in a second working mode.

[0017] A working cabin provided according to the present invention also includes a first detection device and a first control module. The first detection device is used to detect the pressure value in the cabin. The first detection device and the control valve are both connected to the first control module. The first control module controls the opening and closing of the control valve based on the pressure value detected by the first detection device.

[0018] According to a working cabin provided by the present invention, the first control modules are provided in plurality, and the first detection devices are respectively connected to the corresponding first control modules, or the first control module is provided in one, and each first detection device is connected to the first control module.

[0019] According to a working cabin provided by the present invention, the control valve is a pneumatic overflow valve.

[0020] A working cabin provided according to the present invention also includes a second detection device and a second control module. The second detection device is used to detect the content of harmful substances in the air in the cabin. The second detection device and the fan are both connected to the second control module. When the second control module determines that the content of harmful substances in the air exceeds a threshold, the second control module controls the fan to shut down.

[0021] A work cabin provided according to the present invention further includes an alarm, which is connected to the second control module. When the second control module determines that the content of harmful substances in the air exceeds a threshold value, the second control module controls the alarm to sound an alarm.

[0022] The present invention also provides a working cabin control method for controlling the pressure value of a cabin of the working cabin, the method comprising:

[0023] Control the fan to supply air to the cabin;

[0024] Get the pressure value in the cabin;

[0025] When it is determined that the pressure value is greater than or equal to the preset pressure value, the control valve corresponding to the cabin is controlled to be opened, otherwise the control valve is controlled to be closed, and at least part of the cabins are in a positive pressure state and the pressure values ​​of each cabin in a positive pressure state are gradually reduced through the first working mode or the second working mode;

[0026] Among them, at least two of the cabins are connected in series through corresponding control valves to form an air circuit, and the fan is connected to the cabin connected in series at the head end, or each of the cabins is connected to the fan through the corresponding control valve.

[0027] The present invention also provides a fire-fighting engineering vehicle, comprising a chassis and the working cabin as described above, wherein the working cabin is arranged on the chassis.

[0028] According to a fire-fighting engineering vehicle provided by the present invention, a cab is provided on the chassis, and the cabin connected to the fan is connected to the cab via a switch valve.

[0029] According to a fire engineering vehicle provided by the present invention, the cabin includes a command room, a laboratory and a cleaning room.

[0030] The working cabin provided by the present invention can form a pressure gradient between cabins through a pressure regulating component. For example, in actual use, the pressure value of the clean room can be made lower than the pressure value of the laboratory. Due to the pressure difference between the clean room and the laboratory, the airflow in the laboratory can only flow toward the clean room, and the airflow in the clean room cannot flow back to the laboratory. Therefore, pollutants in the clean room will not enter the laboratory.

[0031] With such an arrangement, a pressure gradient is formed between the cabins through the pressure regulating component, so that the pressure value of the cabin with a high frequency of personnel entry and exit or a high probability of being entered by pollutants can be made lower than the pressure value of the cabin with a low frequency of personnel entry and exit or a low probability of being entered by pollutants. In this way, due to the pressure gradient between the cabins, the air mixed with pollutants in the cabin with a small pressure value cannot flow back into the cabin with a high pressure value, thereby solving the defect in the prior art that pollutants in the cleaning room can easily enter the laboratory when the operating personnel return to the cabin.

[0032] In addition, the pressure regulating component has a first working mode and a second working mode. The working mode of the pressure regulating component can be changed according to the actual number of cabins used during actual operation, thereby making the use of the working cabin more flexible. In the second working mode, the energy consumption of the fan can be reduced to achieve the effect of energy saving and emission reduction.

[0033] Furthermore, the working constant control method provided by the present invention can form a pressure gradient between cabins, so that the pressure value of a cabin with a high frequency of personnel entry and exit or a high probability of being entered by contaminants is lower than the pressure value of a cabin with a low frequency of personnel entry and exit or a low probability of being entered by contaminants. In this way, due to the pressure gradient between cabins, the air mixed with contaminants in the cabin with a small pressure value cannot flow back into the cabin with a high pressure value, thereby solving the defect in the prior art that contaminants in the cleaning room can easily enter the laboratory during the return of operators to the cabin.

[0034] Furthermore, the fire-fighting engineering vehicle provided by the present invention includes the working cabin of the present invention, and thus also includes all the above-mentioned advantages of the working cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 is a schematic structural diagram of a fire engineering vehicle provided in some embodiments of the present invention;

[0037] Figure 2 is a schematic diagram of the internal structure of a working cabin provided in some embodiments of the present invention;

[0038] Figure 3 Schematic diagram of the airflow path in a working chamber provided in some embodiments of the present invention.

[0039] Reference numerals:

[0040] 1. Cabin; 2. Control valve; 3. Fan; 4. Command room; 5. Laboratory; 6. Shower room; 7. Decontamination room; 8. Equipment room; 9. Sealed door; 10. Air duct; 11. Chassis; 12. Cab; 13. Switch valve. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the prior art, a plurality of cabins are arranged in the working cabin of the detection vehicle. For example, some cabins are used as clean rooms for operators to clean, and some cabins are used as laboratories for operators to conduct inspection and analysis. The actual operation process may be: after the operators return to the vehicle from the scene, they first enter the clean room to clean to avoid residual pollutants, and then enter the laboratory to conduct inspection operations. Since the positive pressure in each cabin is basically the same, the pollutants in the clean room can easily enter the laboratory during the return of the operators to the cabin, causing the laboratory to be contaminated, so there is a safety hazard. In order to solve or improve the problem in the prior art that pollutants in the clean room can easily enter the laboratory during the return of the operators to the cabin, and to achieve the effect of preventing pollutants in the clean room from entering the laboratory, a working cabin, a control method and a fire engineering vehicle are provided in the embodiments provided by the present invention.

[0043] Combine the following Figures 1 to 3 A working cabin provided in an embodiment of the present invention is described.

[0044] Specifically, the working cabin includes a cabin body 1, a fan 3, a filtering device and a pressure regulating component.

[0045] There are at least two compartments in the cabin 1. For example, the cabin 1 may be a container structure. The cabin 1 may be divided into at least two compartments by a partition.

[0046] The air inlet of the fan 3 is connected to the cabin 1 for supplying air to the cabin. The filter device is connected to the fan 3 for filtering air. For example, the filter device can be arranged at the air inlet or outlet of the fan 3. The type of the filter device can be set according to the type of toxic substances that need to be filtered, and the present application does not involve the improvement of the filter device, which will not be described in detail.

[0047] The pressure regulating assembly is connected to the cabin body and is used to control the pressure value in each cabin. The pressure regulating assembly has a first working mode and a second working mode. When the pressure regulating assembly is in the first working mode, all cabins are in a positive pressure state, and the pressure value of each cabin decreases. When the pressure regulating assembly is in the second working mode, some cabins are in a positive pressure state, and when the number of cabins in a positive pressure state is greater than one, the pressure value of each cabin decreases.

[0048] The working cabin provided in the embodiment of the present invention can form a pressure gradient between the cabins through a pressure regulating component. For example, in actual use, the pressure value of the clean room can be made lower than the pressure value of the laboratory. Due to the pressure difference between the clean room and the laboratory, the airflow in the laboratory can only flow toward the clean room, and the airflow in the clean room cannot flow back to the laboratory. Therefore, pollutants in the clean room will not enter the laboratory.

[0049] With such an arrangement, a pressure gradient is formed between the cabins through the pressure regulating component, so that the pressure value of the cabin with a high frequency of personnel entry and exit or a high probability of being entered by pollutants can be made lower than the pressure value of the cabin with a low frequency of personnel entry and exit or a low probability of being entered by pollutants. In this way, due to the pressure gradient between the cabins, the air mixed with pollutants in the cabin with a small pressure value cannot flow back into the cabin with a high pressure value, thereby solving the defect in the prior art that pollutants in the cleaning room can easily enter the laboratory when the operating personnel return to the cabin.

[0050] In addition, the pressure regulating component has a first working mode and a second working mode. The working mode of the pressure regulating component can be changed according to the actual number of cabins used during actual operation, thereby making the use of the working cabin more flexible. In the second working mode, the energy consumption of the fan can be reduced to achieve the effect of energy saving and emission reduction.

[0051] In some embodiments provided by the present invention, the pressure regulating assembly includes a control valve 2. At least two chambers are connected in series through corresponding control valves 2 to form an air circuit, and the control valve 2 is used to connect and disconnect the air circuits of the two connected chambers.

[0052] The air outlet of the fan 3 is connected to the cabins connected in series at the head end, so that the airflow provided by the fan 3 can flow through each cabin arranged in series in sequence.

[0053] The control valve 2 is configured such that when the pressure value in the chamber connected to the inlet end of the control valve 2 is greater than or equal to the preset pressure value, the control valve 2 is opened, otherwise, the control valve 2 is closed. Along the direction of airflow, the preset pressure value of each chamber connected in series gradually decreases. The pressure value in the chamber being greater than or equal to the preset pressure value means that the pressure value of the chamber can be maintained within the preset pressure range.

[0054] When all the control valves are open, the pressure regulating assembly is in the first working mode, and when some of the control valves are open, the pressure regulating assembly is in the second working mode.

[0055] In this way, at least two cabins are connected in series through the corresponding control valve 2, and the air filtered by the filter device is introduced into the cabin connected in series at the head end through the fan 3. When the pressure value in the cabin connected in series at the head end is greater than or equal to the preset pressure value, the control valve 2 between the cabin connected in series at the head end and the adjacent downstream cabin is opened, and the air enters the adjacent downstream cabin from the cabin at the head end through the control valve 2. Based on the above principle, the filtered air enters each cabin connected in series in sequence, and since the preset pressure value of each cabin decreases in sequence in the direction of airflow, a pressure gradient can be formed between the cabins connected in series. In addition, since the pressure value in the cabin connected to the inlet end of the control valve 2 is less than the preset pressure value, the control valve 2 is closed. Therefore, after the cabin loses pressure, the control valve 2 leading to the downstream cabin from the depressurized cabin is closed, which can prevent the pollutants in the depressurized cabin from flowing to the downstream cabin, thereby improving the safety of the downstream cabin.

[0056] Optionally, the control valve 2 may be a pneumatic relief valve. By setting the pressure relief value of the pneumatic relief valve, the corresponding cabin may reach a preset pressure value. In this way, the pneumatic relief valve automatically opens and closes in response to the pressure value at the inlet end, without the need for controller control, which can simplify the control system of the working cabin.

[0057] Of course, the control valve 2 is not limited to a pneumatic overflow valve. Optionally, the control valve 2 can also be an electric valve. For example, the control valve 2 can be an electric valve driven by an electromagnetic or an electric valve driven by a motor. Specifically, the working cabin also includes a first detection device and a first control module. The first detection device is used to detect the pressure value of the cabin, for example, the first detection device can be a pressure sensor. For example, a first detection device is provided in each cabin connected in series. The first control module can be a controller. The first detection device and the control valve 2 are both connected to the first control module. The first control module controls the opening and closing of the control valve based on the pressure value detected by the first detection device. That is, when the first control module determines that the pressure value detected by the first detection device is greater than or equal to the preset pressure value, the control valve 2 corresponding to the first detection device is controlled to be opened, and when the pressure value detected by the first detection device is determined to be less than the preset pressure value, the control valve 2 corresponding to the first detection device is controlled to be closed. Further, when the pressure regulating component is in the first working mode, the first control module controls all the control valves to act, and when the pressure regulating component is in the second working mode, the first control module only controls part of the control valves to act. Such a setting can improve the automation degree of the working cabin.

[0058] Of course, at least two cabins are not limited to the form of forming an air circuit by connecting in series through corresponding control valves 2. For example, in other embodiments provided by the present invention, the pressure regulating valve includes a control valve. Each cabin is connected to the fan through its corresponding control valve, and each control valve is used to adjust the air intake of the corresponding cabin. When all the control valves are open, the pressure regulating assembly is in the first working mode, and when some of the control valves are open, the pressure regulating assembly is in the second working mode. In this way, while forming a pressure gradient between at least two cabins, there will be no mutual influence between the cabins. For example, after a certain control valve or some control valves fail, it will not affect the pressure formation in other cabins.

[0059] Further, the control valve is an electric valve. For example, the control valve can be an electric valve driven by an electromagnetic or an electric valve driven by a motor. Specifically, the working cabin also includes a first detection device and a first control module. The first detection device is used to detect the pressure value of the cabin, for example, the first detection device can be a pressure sensor. For example, each cabin is provided with a first detection device. The first control module can be a controller. The first detection device and the control valve are both connected to the first control module. The first control module controls the opening and closing of the control valve based on the pressure value detected by the first detection device. That is, when the first control module determines that the pressure value detected by the first detection device is greater than or equal to the preset pressure value, the control valve corresponding to the first detection device is controlled to open, and when the pressure value detected by the first detection device is determined to be less than the preset pressure value, the control valve corresponding to the first detection device is controlled to close. Further, when the pressure regulating component is in the first working mode, the first control module controls all the control valves to act, and when the pressure regulating component is in the second working mode, the first control module only controls part of the control valves to act. Such a setting can improve the automation degree of the working cabin.

[0060] In some embodiments provided by the present invention, there are multiple first control modules, and the first detection devices are connected to the corresponding first control modules respectively. Of course, there can also be one first control module, and each first detection device is connected to the first control module.

[0061] In some embodiments provided by the present invention, the working cabin further comprises a second detection device and a second control module. The second detection device is used to detect the content of harmful substances in the air in the cabin. The second detection device and the fan 3 are both connected to the second control module, and the second control module controls the fan 3 to be turned off when it is determined that the content of toxic substances in the air exceeds a threshold value.

[0062] Specifically, for the case of the cabins connected in series by the control valve 2, the second detection device is only required to be set in the cabin connected in series at the head end. Since the cabin connected in series at the head end is directly connected to the exhaust port of the fan 3, when the airflow of the fan 3 first enters the warehouse at the head end, when the content of toxic substances in the air in the cabin connected in series at the head end exceeds the threshold value, it means that the filter device cannot effectively filter the toxic substances in the outside air, and the fan 3 is controlled to be closed to avoid more toxic substances from entering the cabin. For the case where each cabin is connected to the fan through its corresponding control valve, the second detection device is set in each cabin connected to the fan, and when it is determined that the content of toxic substances in each cabin exceeds the threshold value, the fan 3 is controlled to be closed. When the content of toxic substances in each cabin exceeds the threshold value, it means that the filter device cannot effectively filter the toxic substances in the outside air, and the fan 3 is controlled to be closed to avoid more toxic substances from entering the cabin.

[0063] Furthermore, the working cabin also includes an alarm. The alarm is connected to the second control module, and when the second control module determines that the content of harmful substances in the air exceeds a threshold value, the second control module controls the alarm to sound an alarm to warn the operator.

[0064] Optionally, the first control module and the second control module may be integrated, for example, the first control module and the second control module are integrated into a working cabin controller.

[0065] Furthermore, each cabin is provided with an alarm, and each alarm is connected to the first control module. When a pressure gradient is formed in the cabin, that is, after the corresponding control valve is opened, if the pressure value in any cabin is lower than the preset pressure value, the first control module controls the corresponding alarm to sound an alarm. Moreover, when the pressure value in the cabin is greater than or equal to the preset pressure value, the first control module controls the corresponding alarm to release the alarm. In this way, the operating personnel can be reminded that the cabin has a depressurization problem, which must be dealt with in a timely manner and self-protection must be performed. Optionally, the alarm can be an audible and visual alarm.

[0066] A working cabin control method is also provided in an embodiment of the present invention, which is used to control the pressure value of a cabin of the working cabin.

[0067] Specifically, the working cabin control method includes:

[0068] The first step is to control the fan to supply air to the cabin. Specifically, the fan can be started by a controller or manually. The fan is connected to the cabin, and the fan is connected to a filter device so that the filter device can filter the airflow driven by the fan.

[0069] Step 2: Obtain the pressure value in the cabin. Specifically, the pressure value in the cabin can be obtained by a first detection device, and each cabin is provided with a first detection device.

[0070] Step 3: When it is determined that the pressure value is greater than or equal to the preset pressure value, the control valve corresponding to the control cabin is opened, otherwise the control valve is closed, and at least part of the cabin is in a positive pressure state and the pressure value of each cabin in a positive pressure state is decreased through the first working mode or the second working mode. When in the first working mode, all control valves 2 are opened, and when in the second working mode, part of the control valves 2 are opened. Specifically, the control process of the control valve can be implemented by the first control module described above, and its content is the same as that in the process described above, which will not be repeated.

[0071] Among them, at least two cabins are connected in series through corresponding control valves 2 to form an air path, and the fan 3 is connected to the cabin connected in series at the head end. Alternatively, each cabin is connected to the fan 3 through a corresponding control valve. The specific contents of the two schemes here can be further referred to the corresponding parts of the working cabin above.

[0072] The working cabin control method provided in the embodiment of the present invention can form a pressure gradient between cabins. For example, in actual use, the pressure value of the clean room can be made lower than the pressure value of the laboratory. Due to the pressure difference between the clean room and the laboratory, the airflow in the laboratory can only flow toward the clean room, and the airflow in the clean room cannot flow back to the laboratory. Therefore, pollutants in the clean room will not enter the laboratory.

[0073] With such an arrangement, by forming a pressure gradient between the cabins, the pressure value of the cabin with a high frequency of personnel entry and exit or a high probability of being entered by pollutants can be made lower than the pressure value of the cabin with a low frequency of personnel entry and exit or a low probability of being entered by pollutants. In this way, due to the pressure gradient between the cabins, the air mixed with pollutants in the cabin with a small pressure value cannot flow back into the cabin with a high pressure value, thereby solving the defect in the prior art that pollutants in the cleaning room can easily enter the laboratory when the operating personnel return to the cabin.

[0074] refer to Figure 1-Figure 3 As shown, a fire-fighting engineering vehicle is also provided in an embodiment of the present invention.

[0075] Specifically, the fire-fighting engineering vehicle comprises a chassis 11 and the working cabin as described above. The working cabin is arranged on the chassis 11.

[0076] It should be noted that the fire engineering vehicle includes a working cabin, which also includes all the above-mentioned advantages of the working cabin, which will not be repeated here.

[0077] It should also be noted that fire engineering vehicles include but are not limited to detection vehicles.

[0078] In some embodiments provided by the present invention, a cab 12 is provided on the chassis 11. The cabin connected to the fan 3 is connected to the cab 12 via a switch valve 13. For example, the cabin connected to the fan 3 may be a cabin connected in series at the head end. The airflow provided by the fan 3 to the cabin connected in series at the head end may enter the cab 12 through the switch valve 13, so that a positive pressure is generated in the cab 12, ensuring that pollutants do not enter the cab 12.

[0079] For example, the switch valve 13 may be an electric valve, and the switch valve 13 may be connected to the first control module, and the first control module controls the opening and closing of the switch valve 13. For example, after at least one control valve 2 of the series-connected cabin is opened, the first control module controls the switch valve 13 to open. By controlling the valve opening of the switch valve 13, the pressure in the cab 12 can be controlled. For example, the pressure in the cab 12 ranges from 50 Pa to 100 Pa. For example, the switch valve 13 may be an electric valve driven by an electromagnetic or an electric valve driven by a motor.

[0080] In some embodiments provided by the present invention, the cabin includes a command room 4, a laboratory 5, and a clean room.

[0081] In some embodiments provided by the present invention, the command room 4, the laboratory 5 and the clean room are connected in series in sequence through corresponding control valves 2 to form an air path. The command room 4 is connected to the exhaust port of the fan 3. Sealed doors 9 are provided between the laboratory 5 and the clean room, between the clean room and the outside of the cabin 1, and between the command room 4 and the outside of the cabin 1.

[0082] Among them, the command room 4 can be used as an on-site command site and integrate the vehicle equipment operation port of the fire engineering vehicle. The personnel of the command room 4 can enter and exit from the sealed door 9 between the command room 4 and the outside of the cabin 1. Optionally, a sealed door 9 can also be set between the command room 4 and the laboratory 5. The laboratory 5 can be equipped with a glove box and various testing instruments, such as various professional instruments and equipment such as nuclear, biological, and chemical. A shower device can be configured in the clean room for operators to clean.

[0083] In this way, the airflow provided by the fan 3 enters the command room 4, the laboratory 5 and the clean room in turn, and since the preset pressure values ​​of the command room 4, the laboratory 5 and the clean room decrease in turn, a pressure gradient with a gradually decreasing pressure can be formed between the command room 4, the laboratory 5 and the clean room, so that pollutants in the process of the operators returning to the cabin will not enter the laboratory 5 and the command room 4 from the clean room.

[0084] In some embodiments provided by the present invention, the clean room is connected to the outside of the cabin 1 through a corresponding control valve 2, so that the control valve 2 can be used to make the clean room reach a preset pressure value.

[0085] Of course, the clean room is not limited to being connected to the outside of the cabin 1 through the control valve 2. For example, in other embodiments provided by the present invention, the cabin also includes an equipment room 8. The clean room is connected to the equipment room 8 through the control valve 2. A door is provided between the equipment room 8 and the outside of the cabin 1. Although the equipment room 8 usually has no sealing requirements, by connecting the equipment room 8 and the clean room with the control valve 2, the airflow exhausted from the clean room can be reused so that the equipment room 8 also has a certain positive pressure, thereby preventing contaminants from entering the equipment room 8. Optionally, the equipment room 8 can be used to place drones, robots or portable detection devices.

[0086] In some embodiments provided by the present invention, the command room 4 is arranged at the front end of the cabin 1, the equipment room 8 is arranged at the rear end of the cabin 1, the laboratory 5 and the clean room are arranged between the command room 4 and the equipment room 8, and the laboratory 5 and the clean room are respectively arranged on both sides of the cabin 1. A transfer structure is provided between the laboratory 5 and the equipment room 8.

[0087] By arranging the equipment room 8 at the rear end of the cabin 1, the hatch of the equipment room 8 can be opened at the rear of the cabin 1, so that the area of ​​the hatch can be increased without affecting other cabins, so that the equipment and equipment in the equipment room 8 can enter and exit the equipment room 8. A transfer structure is arranged between the laboratory 5 and the equipment room 8, so that after the robot or drone takes samples and returns to the equipment room 8, it can be input into the glove box of the laboratory 5 through the transfer structure in the equipment room 8, so that the operator does not need to go out of the cabin to take samples or contact the samples. For example, the transfer structure can be a transfer barrel, which passes through the partition between the equipment room 8 and the laboratory 5 from the equipment room 8 and is connected to the glove box of the laboratory 5, and the transfer barrel and the partition as well as the transfer barrel and the glove box are all sealed. By arranging the laboratory 5 between the command room 4 and the equipment room 8, it is convenient for personnel to flow between the laboratory 5 and the command room 4, for example, it is convenient for personnel in the laboratory 5 to report experimental results to personnel in the command room 4 at any time, and it can also enable sample transfer between the laboratory 5 and the equipment room 8. The laboratory 5 and the clean room are arranged on both sides of the cabin body 1, so that the personnel returning to the cabin can first enter the clean room for cleaning and then enter the laboratory 5 for work.

[0088] In some embodiments provided by the present invention, the clean room includes a decontamination room 7 and a shower room 6 connected by a control valve 2. The shower room 6 is connected to the laboratory 5 through the corresponding control valve 2, and the decontamination room 7 can be connected to the equipment room 8 or to the outside of the cabin 1 through the corresponding control valve 2. There are closed doors between the decontamination room 7 and the shower room 6, between the shower room 6 and the laboratory 5, and between the decontamination room 7 and the outside of the cabin 1.

[0089] Among them, a decontamination nozzle can usually be arranged in the decontamination room 7 to decontaminate the workers wearing protective clothing. A shower nozzle can be arranged in the shower room 6 to decontaminate the skin of the workers. The workers returning to the cabin first enter the decontamination room 7 for decontamination, then enter the shower room 6 for rinsing, and finally enter the laboratory 5 for work.

[0090] Optionally, the shower room 6 and the disinfection room 7 are arranged in sequence along the length direction of the cabin 1 , that is, the shower room 6 is close to the command room 4 , and the disinfection room 7 is close to the equipment room 8 .

[0091] Alternatively, if Figure 3 As shown, the working cabin also includes an air duct 10. Among the cabins connected in series, at least one cabin is provided with an air duct 10, and the air duct 10 is connected to the outlet end of the control valve 2, and the air outlet of the air duct 10 extends in a direction away from the control valve 2. By providing the air duct 10 in the cabin, the air circulation effect in the cabin can be improved, the cabin can be ventilated evenly, and the dead corners in the cabin where the air flow cannot reach can be reduced.

[0092] Furthermore, since the personnel in the command room 4 do not need to go out of the cabin to work, the command room 4 must ensure absolute safety and the highest safety level, so its preset pressure value is the highest. For example, the preset pressure value of the command room 4 ranges from 200Pa to 300Pa. The personnel in the laboratory 5 may need to get off the vehicle to work and conduct sample inspection and analysis. Therefore, there is a risk of contamination in the laboratory 5, and the safety level is lower than that of the command room 4. For example, the preset pressure value in the laboratory 5 ranges from 150Pa to 200Pa. The shower room 6 is a transition buffer zone between the decontamination room 7 and the laboratory 5, and the pressure setting is lower than that of the laboratory 5. For example, the preset pressure value of the shower room 6 ranges from 100Pa to 150Pa. The decontamination room 7 is a contaminated area. In order to prevent pollutants from entering the shower room 6, the pressure of the decontamination room 7 should be lower than that of the shower room 6. For example, the preset pressure value of the decontamination room 7 ranges from 50Pa to 100Pa. That is, Figure 3 As shown, the airflow provided by the fan 3 passes through the command room 4, the laboratory 5, the shower room 6, the disinfection room 7 and the equipment room 8 in sequence, and the pressure values ​​in the above five compartments decrease in sequence to form a pressure gradient.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A working cabin, applied to a fire engineering vehicle, characterized in that: include: A cabin (1) having at least two cabins therein; a fan (3), connected to the cabin and used to supply air to the cabin; A filter device connected to the fan (3) and used to filter air; A pressure regulating assembly connected to the cabin body and used to control the pressure value in each cabin; Wherein, the pressure regulating assembly has a first working mode and a second working mode. When the pressure regulating assembly is in the first working mode, all the cabins are in a positive pressure state, and the pressure of each cabin decreases gradually. When the pressure regulating assembly is in the second working mode, some of the cabins are in a positive pressure state, and when the number of the cabins in the positive pressure state is greater than one, the pressure of each cabin decreases gradually. The pressure regulating assembly comprises a control valve (2), at least two of the chambers are connected in series through the corresponding control valve (2) to form an air circuit, the control valve (2) is used to connect and disconnect the air circuits of the two connected chambers, the fan (3) is connected to the chamber connected in series at the head end, and the control valve (2) is configured such that: when the pressure value of the chamber connected to the inlet end of the control valve (2) is greater than or equal to a preset pressure value, the control valve (2) is opened, otherwise, the control valve (2) is closed.

2. The working cabin according to claim 1, characterized in that: Along the direction of airflow, the preset pressure value of each of the chambers connected in series gradually decreases; When all of the control valves (2) are open, the pressure regulating component is in a first working mode, and when some of the control valves (2) are open, the pressure regulating component is in a second working mode.

3. The working cabin according to claim 1, characterized in that: The pressure regulating assembly comprises a control valve, each of the cabins is connected to the fan (3) via the corresponding control valve, and the control valve is used to regulate the air intake volume of the corresponding cabin; When all of the control valves (2) are open, the pressure regulating component is in a first working mode, and when some of the control valves (2) are open, the pressure regulating component is in a second working mode.

4. The working cabin according to claim 2 or 3 further comprises a first detection device and a first control module, wherein the first detection device is used to detect the pressure value in the cabin, the first detection device and the control valve (2) are both connected to the first control module, and the first control module controls the opening and closing of the control valve based on the pressure value detected by the first detection device.

5. The working cabin according to claim 4, characterized in that: There may be a plurality of first control modules, and the first detection devices are respectively connected to corresponding first control modules; or, there may be one first control module, and each first detection device is connected to the first control module.

6. The working cabin according to claim 2, characterized in that: The control valve (2) is a pneumatic relief valve.

7. The working cabin according to any one of claims 1 to 3 or 6, characterized in that: It also includes a second detection device and a second control module, the second detection device is used to detect the content of harmful substances in the air in the cabin, the second detection device and the fan (3) are both connected to the second control module, and the second control module controls the fan (3) to be turned off when it is determined that the content of harmful substances in the air exceeds a threshold value.

8. The working cabin according to claim 7, characterized in that: It also includes an alarm, which is connected to the second control module. When the second control module determines that the content of harmful substances in the air exceeds a threshold, the alarm is controlled to sound an alarm.

9. A working cabin control method for controlling the pressure value of a cabin of the working cabin, characterized in that: The method comprises: Control the fan to supply air to the cabin; Get the pressure value in the cabin; When it is determined that the pressure value is greater than or equal to the preset pressure value, the control valve corresponding to the cabin is controlled to be opened, otherwise the control valve is controlled to be closed, and through the first working mode or the second working mode, at least part of the cabins are in a positive pressure state and the pressure value of each cabin in a positive pressure state is gradually reduced; when in the first working mode, all the control valves are opened, and when in the second working mode, some of the control valves are opened; At least two of the chambers are connected in series via corresponding control valves (2) to form an air circuit, and the fan (3) is connected to the chamber connected in series at the head end, or each of the chambers is connected to the fan (3) via a corresponding control valve.

10. A fire engineering vehicle, characterized in that: It comprises a chassis (11) and a working cabin according to any one of claims 1 to 8, wherein the working cabin is arranged on the chassis (11).

11. The fire engineering vehicle according to claim 10, characterized in that: A cab (12) is provided on the chassis (11), and the cabin connected to the fan (3) is connected to the cab (12) via a switch valve.

12. The fire engineering vehicle according to claim 10, characterized in that: The cabin includes a command room, a laboratory and a cleaning room.

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