Pyrolysis gas and pyrolytic oil dual-fuel combustion equipment

Abstract

The utility model provides pyrolysis gas and pyrolysis oil dual-fuel combustion equipment, which belongs to the technical field of pyrolysis gas and pyrolysis oil treatment and comprises a combustor. The combustor comprises a barrel, an air distribution assembly, a first air distribution assembly, a second air distribution assembly and a plurality of annular rectangular pipes, the barrel is provided with an air distribution chamber, an air distribution chamber and an oil distribution chamber, the air distribution assembly comprises a fixing plate, a first air distribution barrel, a second air distribution barrel and a plurality of annular rectangular pipes, and first spiral blades are arranged between the first air distribution barrel and the second air distribution barrel; the pyrolysis non-condensable dry gas supply assembly comprises a combustion head, one end of the combustion head is communicated with the gas distribution chamber through a partition plate, and the other end of the combustion head extends out of the barrel; the pyrolytic oil supply assembly comprises an annular oil distributor and a plurality of atomization oil spraying guns, one ends of the atomization oil spraying guns are connected with the oil distributor, and the other ends of the atomization oil spraying guns extend out of the barrel. The utility model solves the technical problem of lack of effective utilization of combustible gas generated by waste tire oil refining in the prior art, and has the characteristic of being capable of realizing effective utilization of pyrolysis gas and pyrolysis oil at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pyrolysis gas and pyrolysis oil processing technical field especially relates to a pyrolysis gas pyrolysis oil dual fuel combustion equipment. BACKGROUND

[0002] In addition to 45% of the cracking oil, 30% of the carbon black and 12% of the steel wire, the waste tire in the oil refining process will also produce about 10% of the non-condensable combustible gas, and this part of the non-condensable combustible gas produced by waste tire oil refining can be recycled. Specifically, the main components of the combustible gas produced by waste tire oil refining are hydrogen, CH4, C2H4, C2H6, C3H8 and other non-condensable but highly flammable hydrocarbon gases, as well as a small amount of CO, CO2 and H2S. The content of CH4 in the gaseous hydrocarbon is relatively high, about 20%-50% or so, the content of C2H4 is slightly higher, about 10%-20%, and the content of C2H6 is about 6%-12%. With the increase of carbon number, the content of hydrocarbon gradually decreases, and the content of CH4 is the highest, which is 41.39vol.%. The calorific value of the tail gas is 35MJ / m 3 , which is equivalent to natural gas, has higher utilization value, in addition, due to the high calorific value of the part of the combustible gas, after purification treatment, it can be used as fuel for oil refining furnace heating, saving fuel, and the excess non-condensable combustible gas can be collected and stored for other industrial heating. However, the prior art lacks effective utilization of the combustible gas produced by waste tire oil refining. SUMMARY

[0003] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, purposes and advantages of the application are more concise and easy to understand.

[0004] The utility model proposes a pyrolysis gas pyrolysis oil dual fuel combustion equipment, solves the technical problem that the prior art lacks effective utilization of the combustible gas produced by waste tire oil refining, has the characteristics that the pyrolysis gas and pyrolysis oil can be effectively utilized at the same time.

[0005] The utility model discloses a pyrolysis gas pyrolysis oil dual fuel combustion equipment, including combustor, and combustor includes: cylinder, has the air distribution chamber, the gas distribution chamber and the oil distribution chamber, and the air distribution chamber is divided with the gas distribution chamber through the fixed plate, and the gas distribution chamber is divided with the oil distribution chamber through the partition board, air distribution assembly, including through the fixed plate and the air distribution chamber intercommunication and along the cylinder axis extension and one end stretches out the first air distribution cylinder of cylinder, the second air distribution cylinder of the sleeve setting in the first air distribution cylinder outside and the annular square pipe of the distribution along the second air distribution cylinder periphery, the second air distribution cylinder one end intercommunication with the air distribution chamber through the fixed plate, and the other end stretches out the cylinder, and the annular square pipe one end intercommunication with the air distribution chamber through the fixed plate, and the other end stretches out the cylinder, and the first air distribution cylinder is equipped with the first helical blade between the second air distribution cylinder, pyrolysis noncondensable dry gas supply assembly includes the combustion head, and the combustion head one end intercommunication with the gas distribution chamber through the partition board, and the other end stretches out the cylinder, pyrolysis oil supply assembly includes annular oil distribution disc and the atomizing oil injection gun of the several of one end and oil distribution disc link, and the atomizing oil injection gun other end stretches out the cylinder.

[0006] Further, the air distribution assembly further includes a third air distribution cylinder sleeved outside the second air distribution cylinder, and a fourth air distribution cylinder sleeved outside the third air distribution cylinder, the annular square pipe is located between the second air distribution cylinder and the third air distribution cylinder, and the second helical blade is arranged between the third air distribution cylinder and the fourth air distribution cylinder; one end of the third air distribution cylinder is communicated with the air distribution chamber through the fixed plate, and the other end thereof extends out of the cylinder; one end of the fourth air distribution cylinder is communicated with the air distribution chamber through the fixed plate, and the other end thereof extends out of the cylinder.

[0007] In some embodiments, the first air distribution cylinder, the second air distribution cylinder, the annular square pipe, the third air distribution cylinder and the fourth air distribution cylinder are flushly arranged away from the end of the fixed plate.

[0008] In some embodiments, the combustion head and the atomizing oil injection gun are alternately arranged along the periphery of the fourth air distribution cylinder; the end of the combustion head away from the partition board is flush with the end of the atomizing oil injection gun away from the oil distribution disc, and extends out of the end of the fourth air distribution cylinder and is arranged towards the fourth air distribution cylinder.

[0009] Further, the pyrolysis noncondensable dry gas supply assembly includes a pyrolysis noncondensable dry gas buffer tank, the pyrolysis noncondensable dry gas buffer tank is connected with the gas distribution chamber through a first pipeline, and a booster delivery vortex pump, a control total valve, a flow regulating valve, a pressure remote sensor and a pneumatic quick cut-off valve are sequentially arranged on the first pipeline in a transmission direction.

[0010] Further, the pyrolysis gas pyrolysis oil dual fuel combustion equipment further includes an ignition assembly, the ignition assembly includes a second pipeline connected with the first pipeline at one end, and an igniter, the other end of the second pipeline passes through the cylinder and is arranged close to the combustion head at the front end of the annular square pipe.

[0011] In some embodiments, the ignition assembly further comprises a pulse ignition induction needle connected with the igniter, the pulse ignition induction needle is interlocked with the flame detector, and the pulse ignition induction needle is arranged close to the combustion head away from the baffle.

[0012] Further, the air distribution assembly further comprises an air distribution fan connected with the air distribution chamber.

[0013] In some embodiments, the pyrolysis oil supply assembly further comprises a pyrolysis oil buffer tank connected with the oil distribution chamber.

[0014] In some embodiments, the pyrolysis oil buffer tank is connected with the oil distribution chamber through a third pipeline, and the third pipeline is provided with a control ball valve, a high-pressure jet oil pump, an on-site pressure gauge, a flow control valve, a filter and a check valve.

[0015] Compared with the prior art, the pyrolysis gas and pyrolysis oil dual-fuel combustion equipment has the advantages that:

[0016] The burner disclosed by the utility model can simultaneously process pyrolysis oil and pyrolysis non-condensable gas, or separately process pyrolysis oil or pyrolysis non-condensable gas, thereby improving the flexibility of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and are provided to explain the utility model and are not intended to limit the utility model unduly. In the drawings:

[0018] Figure 1 A structure schematic view of the pyrolysis gas and pyrolysis oil dual-fuel combustion equipment provided by the utility model embodiment is provided.

[0019] Figure 2 A local structure schematic view of the pyrolysis gas and pyrolysis oil dual-fuel combustion equipment provided by the utility model embodiment is provided.

[0020] Figure 3The partial structure diagram of the air distribution assembly of the pyrolysis gas and pyrolysis oil dual fuel combustion equipment is provided in the embodiments of the present application.

[0021] Figure 4 The structure diagram of the annular oil distribution disc of the pyrolysis gas and pyrolysis oil dual fuel combustion equipment is provided in the embodiments of the present application.

[0022] In the above figures: 1, burner; 101, cylinder; 1011, air distribution chamber; 1012, gas distribution chamber; 1013, oil distribution chamber; 102, air distribution assembly; 1021, first air distribution cylinder; 1022, second air distribution cylinder; 1023, third air distribution cylinder; 1024, fourth air distribution cylinder; 1025, annular rectangular tube; 1026, air distribution fan; 1027, first spiral blade; 1028, second spiral blade; 103, pyrolysis non-condensable dry gas supply assembly; 1031, combustion head; 1032, pyrolysis non-condensable dry gas buffer tank; 1033, first pipeline; 1034, booster delivery vortex pump; 1035, control master valve; 1036, flow regulating valve; 1037, pressure remote sensor; 1038, pneumatic quick cut-off valve; 104, pyrolysis oil supply assembly; 1040, check valve; 1041, annular oil distribution disc; 1042, atomizing oil injection gun; 1043, pyrolysis oil buffer tank; 1044, third pipeline; 1045, control ball valve; 1046, high-pressure jet oil pump; 1047, local pressure gauge; 1048, flow control valve; 1049, filter; 2, ignition assembly; 201, second pipeline; 202, igniter; 203, pulse ignition induction needle; 204, flame detector. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The present application provides a pyrolysis gas and pyrolysis oil dual fuel combustion equipment, Figure 1 The structure diagram of the pyrolysis gas and pyrolysis oil dual fuel combustion equipment according to the embodiments of the present application is provided. Figure 1 、 Figure 3 and Figure 4As shown, the pyrolysis gas-oil dual fuel combustion device comprises a burner 1, which comprises a cylinder body 101 having a wind distribution chamber 1011, a gas distribution chamber 1012, and an oil distribution chamber 1013, the wind distribution chamber 1011 being separated from the gas distribution chamber 1012 by a fixed plate, and the gas distribution chamber 1012 being separated from the oil distribution chamber 1013 by a partition plate; a wind distribution assembly 102 comprising a first wind distribution cylinder 1021 in communication with the wind distribution chamber 1011 through a fixed plate and extending along the axis of the cylinder body 101 and having one end extending out of the cylinder body 101, a second wind distribution cylinder 1022 sleeved outside the first wind distribution cylinder 1021, and a plurality of annular square tubes 1025 distributed along the outer periphery of the second wind distribution cylinder 1022; one end of the second wind distribution cylinder 1022 is in communication with the wind distribution chamber 1011 through a fixed plate, and the other end extends out of the cylinder body 101; one end of the annular square tube 1025 is in communication with the wind distribution chamber 1011 through a fixed plate, and the other end extends out of the cylinder body 101; a first spiral blade 1027 is arranged between the first wind distribution cylinder 1021 and the second wind distribution cylinder 1022; a pyrolysis non-condensable dry gas supply assembly 103 comprising a combustion head 1031, one end of the combustion head 1031 being in communication with the gas distribution chamber 1012 through a partition plate, and the other end extending out of the cylinder body 101; a pyrolysis oil supply assembly 104 comprising an annular oil distribution disc 1041 and a plurality of atomizing oil injection guns 1042 connected to the oil distribution disc at one end, the other end of the atomizing oil injection gun 1042 extending out of the cylinder body 101.

[0025] The utility model discloses a burner 1 through setting pyrolysis oil supply assembly 104 and pyrolysis noncondensable gas supply assembly 103 make this burner 1 can handle pyrolysis oil and pyrolysis noncondensable gas simultaneously, can also handle pyrolysis oil or pyrolysis noncondensable gas alone, improved the flexibility of equipment, because the proportion of pyrolysis oil, pyrolysis noncondensable gas in different waste tires or waste plastic pyrolysis product is different in reality, and the equipment can be applicable to handle various oil, gas proportion pyrolysis product, improved the application range of equipment, simultaneously, the utility model discloses a plurality of air distribution tubes, air distribution tube between being provided with spiral blade, through above -mentioned structure air distribution to combustion process, improved the oxygen content when burning, because the carbon chain of pyrolysis oil is relatively long, and more oxygen is needed for combustion, and the above setting can guarantee that pyrolysis noncondensable gas and pyrolysis oil can fully burn, reduces the emission of harmful gas in the combustion process, effectively reduces the pollution to the environment, and energy can also be saved.

[0026] Further, the air distribution assembly 102 further comprises a third air distribution tube 1023 sleeved outside the second air distribution tube 1022, and a fourth air distribution tube 1024 sleeved outside the third air distribution tube 1023, an annular rectangular tube 1025 is located between the second air distribution tube 1022 and the third air distribution tube 1023, and a second spiral blade 1028 is arranged between the third air distribution tube 1023 and the fourth air distribution tube 1024; one end of the third air distribution tube 1023 is communicated with the air distribution chamber 1011 through a fixed plate, and the other end extends out of the cylinder body 101; one end of the fourth air distribution tube 1024 is communicated with the air distribution chamber 1011 through a fixed plate, and the other end extends out of the cylinder body 101. Through the matching arrangement of multiple sets of air distribution tubes and spiral blades, the combustion efficiency of the burner 1 and the stability of the combustion head 1031 are further improved.

[0027] In some embodiments, the first air distribution duct 1021, the second air distribution duct 1022, the annular rectangular tube 1025, the third air distribution duct 1023 and the fourth air distribution duct 1024 are flushly arranged away from the end of the fixed plate. The above arrangement is mainly to ensure uniform and stable airflow; first, it can make the airflow output by each air distribution device evenly mixed and distributed, prevent the situation of local excessive or insufficient air volume, ensure that the pyrolysis oil and the pyrolysis non-condensable gas are fully and uniformly mixed with air, and ensure the stability and efficiency of combustion; on the other hand, it helps to reduce the turbulence and disturbance of the airflow, makes the airflow enter the combustion space in a smooth state, prevents deflagration caused by unstable airflow; it can also prevent local overheating caused by uneven ends and increase the service life of the equipment.

[0028] As shown in Figure 2 , the combustion head 1031 and the atomizing oil injection gun 1042 are alternately arranged along the outer periphery of the fourth air distribution duct 1024; the end of the combustion head 1031 away from the partition plate is flush with the end of the atomizing oil injection gun 1042 away from the oil distribution disc, and extends out of the end of the fourth air distribution duct 1024 and is arranged towards the fourth air distribution duct 1024. The alternate arrangement of the combustion head 1031 and the atomizing oil injection gun 1042 can further improve the uniformity of the contact between the pyrolysis non-condensable gas and the pyrolysis oil and air, and ensure the combustion efficiency.

[0029] Further, the combustion head 1031 and the atomizing oil injection gun 1042 are each provided with six.

[0030] Further, the pyrolysis non-condensable dry gas supply assembly 103 comprises a pyrolysis non-condensable dry gas buffer tank 1032, which is connected with the gas distribution chamber 1012 through a first pipeline 1033. A booster delivery vortex pump 1034, a control total valve 1035, a flow regulating valve 1036, a pressure remote sensor 1037, and a pneumatic quick cut-off valve 1038 are sequentially arranged on the first pipeline 1033 in the transmission direction. The outlet of the booster delivery vortex pump 1034 is connected with the inlet of the control total valve 1035. The outlet of the control total valve 1035 is provided with the electric flow regulating valve 1036. The working principle of the electric flow regulating valve is to drive the valve body by electricity, and adjust the flow of the pyrolysis non-condensable dry gas by adjusting the flow guide hole in the valve body or changing the gap between the valve core and the valve seat, so as to meet the flow regulating requirement under different working conditions. The inlet of the electric flow regulating valve 1036 is connected with the outlet of the control total valve 1035, and the outlet of the electric flow regulating valve 1036 is connected with the inlet of the pneumatic quick cut-off valve 1038. The working principle of the pneumatic quick cut-off valve 1038 is to receive the control signal by the pneumatic actuator, drive the valve core to move, so as to realize the opening or closing of the valve. The outlet of the pneumatic quick cut-off valve 1038 is connected with the inlet of the pyrolysis non-condensable dry gas of the dual-fuel burner 1. The pressure remote sensor 1037 is arranged on the inlet pipeline, which is used to detect the output pressure of the input pyrolysis non-condensable dry gas. The pressure remote sensor 1037 is connected with the booster delivery vortex pump 1034 through the PLC interlocking, which is used to adjust the output pressure of the booster delivery vortex pump 1034. The above-mentioned arrangement can improve the safety of the equipment.

[0031] Further, the pyrolysis gas and pyrolysis oil dual-fuel combustion equipment further comprises an ignition assembly 2, which comprises a second pipeline 201 connected with the first pipeline 1033 at one end, and an igniter 202. The other end of the second pipeline 201 penetrates through the cylinder body 101 and is arranged at the front end of the annular square tube 1025 close to the combustion head 1031.

[0032] In some embodiments, a control valve is arranged on the second pipeline 201. When the burner 1 is ignited, the control valve is closed immediately.

[0033] In some embodiments, the ignition assembly 2 further comprises a pulse ignition induction needle 203 connected with the igniter 202, and a flame detector 204 interlocked with the pulse ignition induction needle 203, and arranged close to the combustion head 1031 away from the baffle 1015. The working principle of the flame detector 204 is mainly based on the spectral radiation released during the combustion of matter, especially visible light, ultraviolet light and infrared light. The flame detector 204 receives these specific wavelength light radiations through the sensor and converts them into electrical signals for processing, thereby realizing the detection and alarm of the flame of the dual-fuel burner 1.

[0034] Further, the air distribution assembly 102 further comprises an air distribution fan 1026 connected with the air distribution chamber 1011.

[0035] In some embodiments, the pyrolysis oil supply assembly 104 further comprises a pyrolysis oil buffer tank 1043 connected with the oil distribution chamber 1013.

[0036] In some embodiments, the pyrolysis oil buffer tank 1043 is connected with the oil distribution chamber 1013 through a third pipeline 1044, and the third pipeline 1044 is provided with a control ball valve 1045, a high-pressure jet oil pump 1046, an on-site pressure gauge 1047, a flow control valve 1048, a filter 1049, and a check valve 1040.

[0037] In some embodiments, the gas inlet of the buffer tank is vertically arranged at the central position of the upper head, and the gas inlet is connected with the external gas pipeline; the gas outlet of the buffer tank is arranged at the middle part of the lower head, and the gas outlet is connected with the main gas pipeline of the dual-fuel burner 1.

[0038] The working process of the above-mentioned pyrolysis gas and pyrolysis oil dual-fuel combustion equipment is as follows:

[0039] After the pyrolysis of waste rubber and plastic is completed, the pyrolysis non-condensable gas is stored in the pyrolysis non-condensable gas buffer tank, then enters the gas distribution chamber 1012 of the burner 1 through the first pipeline 1033, and then is delivered to the combustion head 1031. After the pyrolysis of waste rubber and plastic is completed, the pyrolysis oil is stored in the pyrolysis oil buffer tank 1043, then enters the oil distribution chamber 1013 of the burner 1 through the third pipeline 1044, and then is delivered to the atomizing oil injection gun 1042. The combustion head 1031 sprays the pyrolysis non-condensable gas, the atomizing oil injection gun 1042 sprays the pyrolysis oil, the ignition assembly 2 ignites the burner 1, the air distribution assembly 102 distributes air to the burner 1, and the burner 1 completes the combustion of the pyrolysis non-condensable gas and the pyrolysis oil.

[0040] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as within the scope of the present disclosure.

[0041] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it shall not be understood as a limitation on the scope of the present application patent. It should be pointed out that, for ordinary skilled in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.

Claims

1. A pyrolysis gas pyrolysis oil dual fuel combustion apparatus, characterized by, Includes a burner, said burner comprising: The cylinder has an air distribution chamber, a gas distribution chamber, and an oil distribution chamber. The air distribution chamber is separated from the gas distribution chamber by a fixed plate, and the gas distribution chamber is separated from the oil distribution chamber by a partition. An air distribution assembly includes a first air distribution duct that communicates with the air distribution chamber via the fixing plate and extends along the axis of the cylinder body with one end extending out of the cylinder body; a second air distribution duct that is sleeved outside the first air distribution duct; and a plurality of annular rectangular tubes distributed along the outer periphery of the second air distribution duct. One end of the second air distribution duct is connected to the air distribution chamber via the fixing plate, and the other end extends out of the cylinder body. One end of each annular rectangular tube is connected to the air distribution chamber via the fixing plate, and the other end extends out of the cylinder body. A first helical blade is provided between the first air distribution duct and the second air distribution duct. A pyrolysis non-condensable dry gas supply assembly includes a burner head, one end of which is connected to the gas distribution chamber via the partition, and the other end of which extends out of the cylinder. The pyrolysis oil supply assembly includes an annular oil separator and a plurality of atomizing oil spray guns connected at one end to the oil separator, with the other end of the atomizing oil spray guns extending out of the cylinder.

2. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 1, characterized by, The air distribution assembly further includes a third air distribution duct sleeved outside the second air distribution duct, and a fourth air distribution duct sleeved outside the third air distribution duct. The annular rectangular tube is located between the second air distribution duct and the third air distribution duct, and a second spiral blade is provided between the third air distribution duct and the fourth air distribution duct. One end of the third air distribution duct is connected to the air distribution chamber through the fixing plate, and the other end extends out of the duct body; one end of the fourth air distribution duct is connected to the air distribution chamber through the fixing plate, and the other end extends out of the duct body.

3. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 2, characterized by, The ends of the first air distribution duct, the second air distribution duct, the annular rectangular tube, the third air distribution duct, and the fourth air distribution duct that are away from the fixed plate are flush with each other.

4. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 3, characterized by, The burner head and the atomizing fuel injection gun are alternately arranged along the outer periphery of the fourth air distribution duct; The end of the burner head away from the partition is flush with the end of the atomizing oil gun away from the oil distributor plate, and extends out of the end of the fourth air distribution duct and is positioned towards the fourth air distribution duct.

5. The pyrolysis gas oil dual fuel combustion apparatus according to claim 1, characterized by, The pyrolysis non-condensable dry gas supply assembly includes a pyrolysis non-condensable dry gas buffer tank, which is connected to the gas distribution chamber through a first pipeline. Along the transmission direction, the first pipeline is sequentially equipped with a booster delivery vortex pump, a main control valve, a flow regulating valve, a pressure remote sensor, and a pneumatic quick-cut-off valve.

6. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 5, characterized by The dual-fuel combustion equipment for pyrolysis gas and pyrolysis oil also includes an ignition assembly, which includes a second pipe connected at one end to the first pipe and an igniter. The other end of the second pipe passes through the cylinder and is located at the front end of the annular rectangular tube near the combustion head.

7. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 6, characterized in that, The ignition assembly further includes a pulse ignition sensing needle and a flame detector. The pulse ignition sensing needle is connected to the igniter and interlocked with the flame detector. The pulse ignition sensing needle and the flame detector are located at the end of the pulse ignition sensing needle that is closer to the burner head and farther from the partition.

8. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 1, characterized by, The air distribution assembly also includes an air distribution fan connected to the air distribution chamber.

9. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 1, characterized by, The pyrolysis oil supply assembly further comprises a pyrolysis oil buffer tank connected with the oil separation chamber.

10. The pyrolysis gas-oil dual fuel combustion apparatus according to claim 9, characterized in that, The pyrolysis oil buffer tank is connected with the oil separation chamber through a third pipeline, and the third pipeline is provided with a control ball valve, a high-pressure jet oil pump, an on-site pressure gauge, a flow control valve, a filter and a check valve.

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