Protective device for mixing natural gas and hydrogen

Abstract

The invention relates to the technical field of natural gas and hydrogen mixing, and discloses a natural gas and hydrogen mixing protection device which comprises a bottom plate, a pushing handle is fixedly connected to one side of the upper portion of the bottom plate, a plurality of universal wheels are arranged at the bottom of the bottom plate, a firewall is fixedly installed on the upper portion of the bottom plate, and a protection mechanism is fixedly installed in the firewall. The protection mechanism comprises a sensor assembly and an auxiliary assembly and is used for monitoring the device, a plurality of cooling fans are arranged on the two sides of the interior of the firewall and are used for cooling the device, and detection mechanisms are arranged on the two sides of the upper portion of the firewall and are used for detecting whether the device leaks air or not. Shielding mechanisms are fixedly mounted on two sides, far away from the firewall, of the upper part of the bottom plate. Infrared detectors installed on electric sliding rails on the two sides of the upper portion of the firewall are driven by the sliding rails to scan the space around the device, and whether gas leakage exists or not and the position of a leakage source are accurately judged through the infrared imaging detection technology.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas and hydrogen blending, and specifically to a protection device for natural gas and hydrogen blending. Background Art

[0002] Under the background of the accelerating transformation of the global energy structure towards cleaner energy, the natural gas and hydrogen blending technology, as a highly potential energy utilization method, is gradually attracting wide attention. This technology aims to blend hydrogen into natural gas in a certain proportion, which can not only reduce the pollutant emissions generated during the combustion of traditional natural gas and contribute to environmental protection, but also enable the transportation and distribution of hydrogen based on the existing natural gas infrastructure, effectively reducing the cost and difficulty of hydrogen application. However, there are many safety risks in the process of natural gas and hydrogen blending, and the existing protection technologies are difficult to meet the actual needs.

[0003] On the one hand, traditional gas detection technologies have many defects in detecting natural gas and hydrogen blended gases. Some gas detection sensors have insufficient sensitivity and are difficult to detect low-concentration hydrogen leaks; they have a long response time and cannot detect leaks and issue alarms in a timely manner; moreover, they are easily affected by cross-interference, resulting in inaccurate detection results. On the other hand, traditional fire extinguishing systems may not be able to effectively deal with the fires of mixed gases because the combustion characteristics of mixed gases are different from those of single gases, and the fire extinguishing solutions need to be optimized and improved specifically. In addition, the selection and setting of explosion-proof electrical equipment also need to be re-evaluated and adjusted according to the characteristics of the mixed gases. In addition, the natural gas and hydrogen blending system involves the mixing of multiple gases, and its protection requirements are more complex. The existing protection technologies have deficiencies in overall planning and system design, lacking a systematic protection concept that considers the characteristics of mixed gases, the characteristics of the blending process, and various safety risks as a whole, and it is difficult to establish a comprehensive and effective protection system.

[0004] In view of this, the purpose of the present invention is to provide a protection device for natural gas and hydrogen blending to solve the deficiencies existing in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a protection device for natural gas and hydrogen blending, which solves the problem of low efficiency of traditional gas detection.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A natural gas and hydrogen mixing protection device, including a bottom plate, on one side of the upper part of the bottom plate is fixedly connected with a push handle, at the bottom of the bottom plate are provided a plurality of universal wheels, on the upper part of the bottom plate is fixedly installed a firewall, inside the firewall is fixedly installed a protection mechanism, the protection mechanism includes a sensor component and an auxiliary component, which are used to monitor the device, on both sides inside the firewall are provided a plurality of cooling fans, which are used to cool the device, on both sides of the upper part of the firewall are provided detection mechanisms, which are used to detect whether the device has air leakage, on both sides of the upper part of the bottom plate away from the firewall are fixedly installed shielding mechanisms, the shielding mechanism includes an adjustment component and a shielding component, which are used to shield and protect the device, at both ends of the shielding mechanism are fixedly installed cooling mechanisms, the cooling mechanism includes a collection component and a cooling component, which are used to cool the device;

[0007] The sensor component in the protection mechanism includes two bases fixedly installed inside the firewall, on the upper parts of both bases are fixedly connected with mixing tanks, at both ends of the upper part of the mixing tank are provided temperature sensors, and at one end of the upper part of the mixing tank is also provided a pressure sensor.

[0008] Preferably, the auxiliary component includes an alarm installed on the upper part of the mixing tank away from the pressure sensor, an adjustment valve is arranged in the middle of the upper part of the mixing tank, and an observation window is opened at one end of the mixing tank.

[0009] Preferably, the detection mechanism includes electric slide rails fixedly installed on both sides of the upper part of the firewall, on the moving seats of the two electric slide rails are provided infrared detectors, and on the upper parts of the two infrared detectors are provided alarm lights.

[0010] Preferably, the adjustment component in the shielding mechanism includes telescopic columns fixedly installed on both sides of the upper part of the bottom plate away from the firewall, and at the output ends of the two telescopic columns are fixedly connected with fixed slots.

[0011] Preferably, the shielding component includes a support plate fixedly installed on one side of the upper part of the bottom plate away from the push handle, on one side of the upper part of the support plate is fixedly connected with a fixed column, on both sides of the outside of the fixed column are rotatably connected with shielding plates, the two fixed slots are respectively fixedly connected to one end of the bottoms of the two shielding plates, and on the bottoms of the two shielding plates are provided lighting lamps.

[0012] Preferably, the collection component in the cooling mechanism includes collection grooves fixedly installed at both ends of the shielding plate, inside the two collection grooves are provided filter meshes, and on one side of the two filter meshes are fixedly connected with conveying pipes.

[0013] Preferably, the cooling component includes a cooling pipeline installed around the upper part of the mixing tank. One end of each of the two conveying pipelines is fixedly connected to both ends of the cooling pipeline, and electric valves are arranged on the outer walls of the other ends of the two conveying pipelines.

[0014] Preferably, a control panel is fixedly installed between both ends of the pusher, and a plurality of control buttons are arranged on one side of the control panel.

[0015] Preferably, a warning sign is fixedly connected to the outer end of the firewall.

[0016] Preferably, the bottoms of both bases are fixedly connected to the upper part of the bottom plate.

[0017] The present invention provides a protection device for natural gas and hydrogen blending. It has the following beneficial effects:

[0018] 1. The present invention uses infrared detectors installed on the electric sliding rails on both sides of the upper part of the firewall. Driven by the sliding rails, the surrounding space of the device is scanned, and infrared imaging detection technology is used to accurately judge whether there is gas leakage and the location of the leakage source. Once leakage is detected, the alarm light lights up and sends a signal to the control center, jointly reminding the operator with the alarm in the protection mechanism, improving the accuracy and timeliness of leakage detection, enabling the operator to quickly take measures to handle the leakage problem, preventing the leaked gas from accumulating to the explosion limit, effectively reducing the safety risk, and ensuring the safe and stable operation of the entire blending device.

[0019] 2. The present invention can adjust the position of the shielding plate through the cooperation of the telescopic column and the fixed groove, and the shielding plate can also rotate around the fixed column to meet the shielding requirements in different directions. When the sun is strong, it can shield the sun for the device, reduce the temperature rise of the equipment caused by direct sunlight, and reduce the potential safety hazards caused by temperature changes. At the same time, the lighting lamp at the bottom of the shielding plate can be turned on through the control button on the control panel when the light is dim, providing lighting for the operator to operate, maintain, and inspect the device, facilitating the operation process, improving work efficiency, and ensuring work safety at night or in an environment with insufficient light.

[0020] 3. The present invention uses temperature sensors and pressure sensors to monitor the temperature and pressure of the gas in the mixing tank in real time. Once an abnormality occurs, the sensors quickly transmit signals, and the alarm immediately sounds an alarm. The operator can adjust the gas flow rate and pressure by adjusting the valve according to the alarm, and the observation window can also assist in judging the mixing situation, realizing precise monitoring and control of the mixing process, being able to promptly discover and solve potential problems, ensuring the safe and stable progress of the natural gas and hydrogen blending process, effectively avoiding serious safety accidents such as explosion caused by abnormal temperature and pressure, and ensuring the safety of personnel and the normal operation of the equipment. Description of the Drawings

[0021] Figure 1Schematic diagram of the right front side of the present invention;

[0022] Figure 2 Schematic diagram of the left rear side of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the present invention;

[0024] Figure 4 Schematic diagram of the protection mechanism of the present invention;

[0025] Figure 5 Schematic diagram of the detection mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the shielding mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the cooling mechanism of the present invention;

[0028] Figure 8 Schematic diagram of the control structure of the present invention.

[0029] Wherein, 1, bottom plate; 2, pusher; 3, universal wheel; 4, firewall; 5, protection mechanism; 501, base; 502, mixing tank; 503, temperature sensor; 504, pressure sensor; 505, alarm; 506, regulating valve; 507, observation window; 6, cooling fan; 7, detection mechanism; 701, electric slide rail; 702, infrared detector; 703, alarm lamp; 8, shielding mechanism; 801, telescopic column; 802, fixed groove; 803, shielding plate; 804, fixed column; 805, lighting lamp; 806, support plate; 9, cooling mechanism; 901, collection tank; 902, filter screen; 903, conveying pipeline; 904, cooling pipeline; 905, electric valve; 10, control panel; 11, control button; 12, warning sign. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to the attached Figure 1 - attached Figure 8, an embodiment of the present invention provides a protection device for natural gas and hydrogen blending, including a bottom plate 1. On one side of the upper part of the bottom plate 1, a pusher 2 is fixedly connected. At the bottom of the bottom plate 1, a plurality of universal wheels 3 are arranged. On the upper part of the bottom plate 1, a firewall 4 is fixedly installed. Inside the firewall 4, a protection mechanism 5 is fixedly installed. The protection mechanism 5 includes a sensor component and an auxiliary component, which are used to monitor the device. On both sides inside the firewall 4, a plurality of cooling fans 6 are arranged, which are used to cool the device. On both sides of the upper part of the firewall 4, a detection mechanism 7 is arranged, which is used to detect whether the device has air leakage. On both sides of the upper part of the bottom plate 1 away from the firewall 4, a shielding mechanism 8 is fixedly installed. The shielding mechanism 8 includes an adjustment component and a shielding component, which are used to shield and protect the device. At both ends of the shielding mechanism 8, a temperature reduction mechanism 9 is fixedly installed. The temperature reduction mechanism 9 includes a collection component and a temperature reduction component, which are used to cool the device;

[0032] The sensor component in the protection mechanism 5 includes two bases 501 fixedly installed inside the firewall 4. On the upper parts of both bases 501, a mixing tank 502 is fixedly connected. At both ends of the upper part of the mixing tank 502, temperature sensors 503 are arranged. At one end of the upper part of the mixing tank 502, a pressure sensor 504 is also arranged;

[0033] The bottoms of both bases 501 are fixedly connected to the upper part of the bottom plate 1;

[0034] Specifically, the sensor component in the protection mechanism 5 includes two bases 501 fixedly installed inside the firewall 4. The bases 501 provide stable support for the mixing tank 502 to ensure that the mixing tank 502 remains stable during operation. On the upper parts of both bases 501, a mixing tank 502 is fixedly connected. At both ends of the upper part of the mixing tank 502, temperature sensors 503 are arranged. The temperature sensors 503 can monitor the temperature change of the gas in the tank in real time, providing accurate data support for subsequent temperature control. At one end of the upper part of the mixing tank 502, a pressure sensor 504 is also arranged. The pressure sensor 504 can accurately measure the pressure of the gas in the tank and timely detect abnormal pressure conditions.

[0035] The auxiliary component includes an alarm 505 arranged on the upper part of the mixing tank 502 away from the pressure sensor 504, an adjustment valve 506 arranged in the middle of the upper part of the mixing tank 502, and an observation window 507 opened at one end of the mixing tank 502;

[0036] Specifically, the auxiliary components include an alarm 505 installed at the upper part of the mixing tank 502, away from the pressure sensor 504. Once it receives the abnormal signal transmitted by the sensor, it will immediately emit a strong sound and light alarm to attract the attention of the operators and ensure that they can promptly detect potential safety problems. An adjustment valve 506 is provided on the middle side of the upper part of the mixing tank 502. The operator can manually operate the adjustment valve 506 according to the actual situation. When the pressure in the tank is too high, the gas in the tank can be appropriately released through the adjustment valve 506 to maintain the pressure stability; when the temperature is abnormal, the inflow and outflow of the gas can also be adjusted through the adjustment valve 506 to indirectly control the temperature in the tank. An observation window 507 is provided at one end of the mixing tank 502, which is convenient for the operator to directly observe the state, color, etc. of the gas in the tank, assist in judging whether the mixing process is normal, and can also assist in checking whether there are abnormalities such as leaks and impurities inside the equipment to a certain extent.

[0037] The detection mechanism 7 includes electric slide rails 701 fixedly installed on both sides of the upper part of the firewall 4. Infrared detectors 702 are provided on the moving seats of the two electric slide rails 701, and alarm lights 703 are provided on the upper parts of the two infrared detectors 702;

[0038] Specifically, the detection mechanism 7 includes electric slide rails 701 fixedly installed on both sides of the upper part of the firewall 4, which can ensure the stable movement of the infrared detectors 702 on the slide rails. Infrared detectors 702 are provided on the moving seats of the two electric slide rails 701. The infrared detectors 702 judge whether there is gas leakage and the location of the leakage source by capturing the absorption and scattering characteristics of the leaked gas on infrared light of a specific wavelength, and have the characteristics of high sensitivity and high accuracy. Alarm lights 703 are provided on the upper parts of the two infrared detectors 702. Once the infrared detectors 702 detect leakage, the alarm lights 703 will light up to emit a visual alarm, and at the same time send a signal to the control center to work together with the alarm 505 in the protection mechanism 5 to remind the operator to handle the leakage problem in a timely manner in all directions.

[0039] The adjustment components in the shielding mechanism 8 include telescopic columns 801 fixedly installed on both sides of the upper part of the bottom plate 1, away from the firewall 4. Fixed slots 802 are fixedly connected to the output ends of the two telescopic columns 801;

[0040] Specifically, the adjustment components include telescopic columns 801 fixedly installed on both sides of the upper part of the bottom plate 1, away from the firewall 4. Fixed slots 802 are fixedly connected to the output ends of the two telescopic columns 801. The fixed slots 802 cooperate with the shielding components. By controlling the telescopic movement of the telescopic columns 801, the fixed slots 802 can be driven to move, thereby adjusting the position of the shielding plate 803 to meet the shielding requirements in different directions and ranges.

[0041] The shielding component includes a support plate 806 fixedly installed on the upper part of the bottom plate 1, on the side away from the pusher 2. One side of the upper part of the support plate 806 is fixedly connected to a fixed column 804. Both sides of the outside of the fixed column 804 are rotatably connected to shielding plates 803. Two fixed slots 802 are respectively fixedly connected to one end of the bottom of the two shielding plates 803. Lighting lamps 805 are arranged at the bottom of both shielding plates 803.

[0042] Specifically, the shielding component includes a support plate 806 fixedly installed on the upper part of the bottom plate 1, on the side away from the pusher 2. The support plate 806 provides stable support for the fixed column 804. One side of the upper part of the support plate 806 is fixedly connected to a fixed column 804. Both sides of the outside of the fixed column 804 are rotatably connected to shielding plates 803. Two fixed slots 802 are respectively fixedly connected to one end of the bottom of the two shielding plates 803, enabling the shielding plates 803 to flexibly adjust their positions driven by the telescopic column 801 and also rotate around the fixed column 804 to achieve multi-angle shielding. Lighting lamps 805 are arranged at the bottom of both shielding plates 803. In a dim environment, such as at night or when the indoor light is insufficient, they can be turned on through the control button 11 on the control panel 10, providing illumination for the operator to operate, maintain, and inspect the device, facilitating operation and improving work safety at the same time.

[0043] The collection component in the temperature reduction mechanism 9 includes collection grooves 901 fixedly installed at both ends of the shielding plate 803. Filter meshes 902 are arranged inside the two collection grooves 901. One side of each of the two filter meshes 902 is fixedly connected to a conveying pipeline 903.

[0044] Specifically, the collection component includes collection grooves 901 fixedly installed at both ends of the shielding plate 803. Filter meshes 902 are arranged inside the two collection grooves 901, which can effectively filter impurities in the rainwater to prevent the impurities from entering the subsequent temperature reduction pipeline 904 and affecting the temperature reduction effect. One side of each of the two filter meshes 902 is fixedly connected to a conveying pipeline 903 to ensure that the collected low-temperature resources can be smoothly conveyed to the temperature reduction component.

[0045] The temperature reduction component includes a temperature reduction pipeline 904 surrounding and installed on the upper part of the mixing tank 502. One end of each of the two conveying pipelines 903 is fixedly connected to both ends of the temperature reduction pipeline 904. Electric valves 905 are arranged on the outer walls of the other ends of the two conveying pipelines 903.

[0046] Specifically, the temperature reduction component uses the collected rainwater to cool the mixing tank 502. The temperature reduction component includes a temperature reduction pipeline 904 installed around the upper part of the mixing tank 502, which can conduct sufficient heat exchange with the mixing tank 502. One end of each of the two conveying pipelines 903 is fixedly connected to both ends of the temperature reduction pipeline 904 to form a complete circulation channel. Electric valves 905 are arranged on the outer walls of the other ends of the two conveying pipelines 903. The electric valves 905 can accurately control the flow rate and entry time of the low-temperature resources. Under the control of the electric valves 905, the collected rainwater is introduced into the temperature reduction pipeline 904, and cold air flows in the temperature reduction pipeline 904, conducts heat exchange with the mixing tank 502, and absorbs the heat in the tank, thereby realizing the temperature reduction treatment of the mixing tank 502, which is both energy-saving and environmentally friendly, and can effectively improve the temperature reduction efficiency of the device, ensuring that the mixing tank 502 conducts the blending work of natural gas and hydrogen at an appropriate temperature.

[0047] A control panel 10 is fixedly installed between the two ends of the pusher 2, and a plurality of control buttons 11 are arranged on one side of the control panel 10;

[0048] Specifically, a control panel 10 is fixedly installed between the two ends of the pusher 2, and a plurality of control buttons 11 are arranged on one side of the control panel 10. Each control button 11 has a clear identification and function. The operator can start or stop the cooling fan 6 through these buttons, adjust the rotation speed of the cooling fan 6 to meet different temperature reduction requirements; control the movement of the electric slide rail 701 in the detection mechanism 7 and adjust the detection range of the infrared detector 7,02; adjust the expansion and contraction of the telescopic column 801 to change the position and angle of the shutter 803; control the switch of the lighting lamp 805 to provide lighting for the operation; control the opening and closing of the electric valve 905 and adjust the working state of the temperature reduction mechanism 9.

[0049] One end of the outer part of the firewall 4 is fixedly connected with a warning sign 12;

[0050] Specifically, one end of the outer part of the firewall 4 is fixedly connected with a warning sign 12. The warning sign 12 can remind the surrounding personnel to pay attention to the existence of the natural gas and hydrogen blending device in this area, and need to operate carefully to avoid danger, effectively prevent irrelevant personnel from accidentally entering the dangerous area, and ensure the safety of personnel.

[0051] Working principle: First, two bases 501 are fixedly installed inside the firewall 4, and the mixing tank 502 connected to the upper part is used for the blending of natural gas and hydrogen. Temperature sensors 503 at both ends of the upper part of the mixing tank 502 continuously monitor the gas temperature in the tank, and a pressure sensor 504 at one end pays attention to the pressure change in the tank at all times. The sensors convert the collected data into electrical signals and continuously transmit them to the subsequent control and feedback system. Once the temperature or pressure is abnormal, for example, the temperature is too high, which may be due to abnormal heat release during the blending reaction, and the pressure is too high, which may be caused by the accumulation of gas in the tank, the sensors will quickly transmit the signal.

[0052] When an abnormal signal is received from the sensor, the alarm 505 immediately emits an audible and visual alarm to alert the operator. The operator can manually operate and adjust the valve 506 according to the actual situation. When the pressure is too high, the valve 506 is adjusted to appropriately release the gas in the tank to maintain stable pressure; when the temperature is abnormal, the flow rate of the gas inlet and outlet can also be adjusted by adjusting the valve 506 to indirectly control the temperature in the tank. The observation window 507 opened at one end of the mixing tank 502 facilitates the operator to directly observe the state, color, etc. of the gas in the tank, assisting in judging whether the mixing process is normal and also assisting in checking whether there are abnormalities such as leaks and impurities inside the equipment to a certain extent.

[0053] Through the electric slide rails 701 installed on both sides of the upper part of the firewall 4, and the infrared detectors 702 arranged on their moving seats, driven by the electric slide rails 701, the surrounding space of the device can be scanned along a specific trajectory. The infrared detector 702 uses infrared imaging detection technology to judge whether there is gas leakage and the location of the leakage source by capturing the absorption and scattering characteristics of the leaked gas on infrared light of a specific wavelength. Once a leakage is detected, the alarm lamp 703 on the upper part of the infrared detector 702 will light up to issue a visual alarm, and at the same time send a signal to the control center to work in coordination with the alarm 505 in the protection mechanism 5 to comprehensively alert the operator to handle the leakage problem in time.

[0054] The firewall 4 plays a crucial role in safety isolation in the device. A plurality of cooling fans 6 are arranged on both sides inside it. When it is detected that the temperature inside the device rises, when the overall temperature of the device rises due to heat release from the mixing reaction or too high ambient temperature, the cooling fans 6 will start to operate. The cooling fans 6 take out the heat inside the device through forced air flow to cool the device, maintain the device operating within a suitable temperature range, and prevent safety accidents such as changes in gas properties, equipment damage, and even explosion caused by high temperature.

[0055] The telescopic column 801 in the adjustment assembly is fixedly installed on the upper part of the bottom plate 1 away from both sides of the firewall 4, and the fixed slot 802 connected to its output end cooperates with the shielding assembly. When it is necessary to adjust the shielding range or angle, by controlling the telescopic movement of the telescopic column 801, the fixed slot 802 is driven to move, and then the position of the shielding plate 803 is adjusted. Since the shielding plate 803 is rotatably connected to the fixed column 804, it can be rotated at a certain angle to meet the shielding requirements in different directions. At the same time, the illuminating lamp 805 arranged at the bottom of the shielding plate 803 can be turned on through the control button 11 on the control panel 10 in a dim environment, such as at night or when the indoor light is insufficient, to provide illumination for the operator to operate, maintain, and inspect the device, facilitating operation and improving work safety at the same time.

[0056] The collection tank 901 is fixedly installed at both ends of the baffle 803. The filter screen 902 arranged inside it can filter impurities in the rainwater, preventing the impurities from entering the subsequent cooling pipeline 904 and affecting the cooling effect. On rainy days, the collected rainwater is filtered by the filter screen 902 and then enters the cooling component along the conveying pipeline 903. The cooling pipeline 904 that is installed around the upper part of the mixing tank 502 in the cooling component introduces the collected rainwater under the control of the electric valve 905. The cold air flows in the cooling pipeline 904 and exchanges heat with the mixing tank 502, absorbing the heat in the tank, thereby realizing the cooling treatment of the mixing tank 502. It is both energy-saving and environmentally friendly, and can effectively improve the cooling efficiency of the device, ensuring that the mixing tank 502 mixes natural gas and hydrogen at an appropriate temperature.

[0057] The control panel 10 is installed between both ends of the push handle 2, and multiple control buttons 11 arranged on it respectively correspond to different functions. The operator can start or stop the cooling fan 6, control the movement of the electric slide rail 701 in the detection mechanism 7, adjust the telescopic length of the telescopic column 801, and control the switch of the lighting lamp 805 and the opening and closing of the electric valve 905 through these buttons. In addition, the warning sign 12 fixedly connected to the outer end of the firewall 4 plays a warning role, reminding the surrounding personnel to pay attention that there is a natural gas and hydrogen mixing device in this area, and they need to operate carefully to avoid danger.

[0058] In summary, for the natural gas and hydrogen mixing protection device of the present invention, through the collaborative work of multiple aspects such as the real-time monitoring of the protection mechanism 5, the leak detection and alarm of the detection mechanism 7, the safety isolation of the firewall 4, the cooling of the cooling fan 6 and the cooling mechanism 9, the protection of the shielding mechanism 8, and the centralized control of the control panel 10, a comprehensive and multi-level protection system is formed, effectively ensuring the safe and stable progress of the natural gas and hydrogen mixing process, and improving the safety, reliability and operation efficiency of the device.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for natural gas and hydrogen blending, characterized in that It includes a bottom plate (1). On one side of the upper part of the bottom plate (1), a push handle (2) is fixedly connected. Multiple universal wheels (3) are arranged at the bottom of the bottom plate (1). A firewall (4) is fixedly installed on the upper part of the bottom plate (1). A protection mechanism (5) is fixedly installed inside the firewall (4). The protection mechanism (5) includes a sensor component and an auxiliary component, which are used to monitor the device. Multiple cooling fans (6) are arranged on both sides inside the firewall (4), which are used to cool the device. Detection mechanisms (7) are arranged on both sides of the upper part of the firewall (4), which are used to detect whether the device has air leakage. Shielding mechanisms (8) are fixedly installed on both sides of the upper part of the bottom plate (1) far from the firewall (4). The shielding mechanism (8) includes an adjustment component and a shielding component, which are used to shield and protect the device. Cooling mechanisms (9) are fixedly installed at both ends of the shielding mechanism (8). The cooling mechanism (9) includes a collection component and a cooling component, which are used to cool the device; The sensor component in the protection mechanism (5) includes two bases (501) fixedly installed inside the firewall (4). Mixing tanks (502) are fixedly connected to the upper parts of the two bases (501). Temperature sensors (503) are arranged at both ends of the upper part of the mixing tank (502). A pressure sensor (504) is also arranged at one end of the upper part of the mixing tank (502).

2. The natural gas and hydrogen blending protection device according to claim 1, wherein The auxiliary component includes an alarm (505) arranged at the upper part of the mixing tank (502) far from the pressure sensor (504). An adjustment valve (506) is arranged in the middle of the upper part of the mixing tank (502). An observation window (507) is opened at one end of the mixing tank (502).

3. The natural gas and hydrogen blending protection device according to claim 1, wherein The detection mechanism (7) includes electric slide rails (701) fixedly installed on both sides of the upper part of the firewall (4). Infrared detectors (702) are arranged on the moving seats of the two electric slide rails (701). Alarm lights (703) are arranged on the upper parts of the two infrared detectors (702).

4. The natural gas and hydrogen blending protection device according to claim 1, characterized in that The adjustment component in the shielding mechanism (8) includes telescopic columns (801) fixedly installed on both sides of the upper part of the bottom plate (1) far from the firewall (4). Fixed slots (802) are fixedly connected to the output ends of the two telescopic columns (801).

5. The natural gas and hydrogen blending protection device according to claim 4, characterized in that, The shielding component includes a support plate (806) fixedly installed on one side of the upper part of the bottom plate (1) far from the push handle (2). A fixed column (804) is fixedly connected to one side of the upper part of the support plate (806). Shielding plates (803) are rotatably connected to both sides of the outside of the fixed column (804). The two fixed slots (802) are respectively fixedly connected to one end of the bottoms of the two shielding plates (803). Lighting lamps (805) are arranged at the bottoms of the two shielding plates (803).

6. The natural gas and hydrogen blending protection device according to claim 1, characterized in that, The collection component in the cooling mechanism (9) includes collection grooves (901) fixedly installed at both ends of the shielding plate (803). Filter meshes (902) are arranged inside the two collection grooves (901). Delivery pipes (903) are fixedly connected to one side of the two filter meshes (902).

7. The natural gas and hydrogen blending protection device according to claim 6, wherein The cooling component includes a cooling pipeline (904) installed around the upper part of the mixing tank (502). One end of each of the two conveying pipelines (903) is fixedly connected to both ends of the cooling pipeline (904), and electric valves (905) are arranged on the outer walls of the other ends of the two conveying pipelines (903).

8. The natural gas and hydrogen blending protection device according to claim 1, characterized in that, A control panel (10) is fixedly installed between both ends of the pusher (2), and a plurality of control buttons (11) are arranged on one side of the control panel (10).

9. The natural gas and hydrogen blending protection device according to claim 1, wherein A warning sign (12) is fixedly connected to the outer end of the firewall (4).

10. The natural gas and hydrogen blending protection device according to claim 1, characterized in that, Both bottoms of the two bases (501) are fixedly connected to the upper part of the bottom plate (1).

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