CN106155126B - High-pressure gas integrated pressure reduction module - Google Patents
High-pressure gas integrated pressure reduction module Download PDFInfo
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- CN106155126B CN106155126B CN201510175873.0A CN201510175873A CN106155126B CN 106155126 B CN106155126 B CN 106155126B CN 201510175873 A CN201510175873 A CN 201510175873A CN 106155126 B CN106155126 B CN 106155126B
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Abstract
The invention relates to a high-pressure gas integrated pressure reducing module.A valve body is provided with an inlet flow channel, a pressure reducing flow channel and an outlet flow channel, wherein the inlet flow channel is communicated with the pressure reducing flow channel through a first middle flow channel and is communicated with the outlet flow channel through a bypass flow channel; the bypass throttle valve is installed on the valve body, and a valve rod of the bypass throttle valve corresponds to the bypass flow channel. The invention has simple and reasonable structure, high integration degree, small volume and high safety, and can maintain and overhaul the pressure reducing valve when the high-pressure gas system works normally.
Description
Technical Field
The invention relates to a high-pressure gas integrated type pressure reduction module, and belongs to the technical field of high-pressure gas pressure reduction.
Background
For high-pressure gas with the inlet pressure of about 3-20MPa, the working pressure of 0.5-15Kpa is usually reduced through a pressure reducing valve bank. However, in the conventional pressure reducing valve bank, a pressure reducing valve, a stop valve, a safety valve and the like are connected through pipelines, but because each valve needs to be connected and installed through each pipeline on site, the installation is inconvenient, the installation efficiency is low, and the installation period is increased. In addition, because all valves are connected by pipes, the assembled pressure reducing valve group occupies a large space, has a loose structure and is low in air tightness. At present, a pilot valve and two safety valves are added on the basis of a main pressure reducing valve, the opening and closing height of a main valve disc of the main pressure reducing valve and the pressure of a gas outlet are controlled by the pilot valve, and the main pressure reducing valve has the characteristic of high pressure reducing precision due to the automatic back pressure balancing function. However, the pressure reducing valve group of the structure has to adopt two safety valves, and respectively plays a role in safety protection for the pilot valve and the main pressure reducing valve, although the safety is improved, the pressure reducing valve group is connected with the front stop valve and the rear stop valve by parts such as an external pipeline, a flange and the like, and is limited by the structure of the pressure reducing valve, not only the air inlet pressure gauge and the air outlet pressure gauge cannot be installed on the valve body, the integration degree is not high, the air tightness of a high-pressure gas system cannot be further improved, and the occupied space cannot be reduced to the minimum. Moreover, the conventional pressure reducing valve bank can only enter a maintenance and overhaul state after stopping working, but cannot be maintained on line, so that the normal working of a high-pressure gas system is influenced.
Disclosure of Invention
The invention aims to provide the high-pressure gas integrated pressure reducing module which has the advantages of simple and reasonable structure, high integration degree, small volume and high safety, and can maintain and overhaul the pressure reducing valve when a high-pressure gas system works normally.
The technical scheme for achieving the aim of the invention is as follows: a high-pressure gas integrated form decompression module which characterized in that: comprises a valve body, an air inlet pressure gauge, a front stop valve, a pressure reducing valve, a safety valve, a bypass throttle valve, a rear stop valve and an air outlet pressure gauge,
the valve body is provided with an inlet flow channel, a pressure reducing flow channel and an outlet flow channel, the inlet flow channel is communicated with the pressure reducing flow channel through a first middle flow channel, the inlet flow channel is also communicated with the outlet flow channel through a bypass flow channel, the pressure reducing flow channel is communicated with the outlet flow channel through a rear stop valve flow channel, and an inlet joint and an outlet joint are respectively arranged on the valve body and are communicated with the respective inlet flow channel and outlet flow channel;
the inlet pressure gauge and the outlet pressure gauge are arranged on the valve body and are communicated with the respective inlet flow channel and the respective outlet flow channel through connecting pipes to display the inlet gas pressure and the outlet pressure;
the front stop valve is arranged on the valve body, a valve rod of the front stop valve corresponds to the air inlet flow channel and is used for controlling the on-off of the air inlet flow channel, the rear stop valve is arranged on the valve body, and a valve rod of the rear stop valve corresponds to the flow channel of the rear stop valve and is used for controlling the on-off of the flow channel of the rear stop valve;
the reducing valve is arranged on the valve body and positioned between the front stop valve and the rear stop valve, a main valve disc of the reducing valve is opposite to the end face of a valve port on the valve body, and the reducing valve is used for controlling the pressure of gas flowing into the reducing flow channel from the first middle flow channel by controlling the distance between the main valve disc of the reducing valve and the end face of the valve port on the valve body;
the safety valve is arranged on the valve body and positioned at the rear part of the pressure reducing valve, a safety valve disc of the safety valve is opposite to a safety valve flow passage and is used for controlling the on-off of the safety valve flow passage, one end of the safety valve flow passage is communicated with the pressure reducing flow passage, the other end of the safety valve flow passage is communicated with the safety pressure reducing flow passage, and a safety valve pressure relief connector arranged on the valve body is communicated with the safety pressure relief flow passage;
the bypass throttle valve is arranged on the valve body, and a valve rod of the bypass throttle valve corresponds to the bypass flow channel and is used for controlling the on-off of the bypass flow channel.
Wherein: the air inlet pressure gauge is communicated with an air inlet pressure gauge flow passage on the valve body through a connecting pipe, the air inlet pressure gauge flow passage is communicated with the air inlet flow passage through a second middle flow passage, and a valve rod of the air inlet pressure gauge stop valve arranged on the valve body corresponds to the second middle flow passage and is used for controlling the on-off of the second middle flow passage.
The valve body is also provided with a front pressure relief flow passage communicated with the second middle flow passage, a valve rod of a front discharge valve arranged on the valve body corresponds to the flow passage of the air intake pressure gauge and is used for controlling the on-off of the flow passage of the air intake pressure gauge, and a front pressure relief head is arranged on the valve body and is communicated with the front pressure relief flow passage.
The valve rod of the front stop valve corresponds to the front stop valve flow passage, one end of the front stop valve flow passage is communicated with the air inlet flow passage, and the other end of the front stop valve flow passage is communicated with the first middle flow passage through the front stop valve cavity and the transition flow passage.
The main valve disk of the pressure reducing valve is connected with a valve seat, the main valve disk is communicated with a first middle flow passage, a spring seat is arranged on the valve seat in a sealing way, a main spring sleeved on the valve seat respectively supports against a convex shoulder and the spring seat of the valve seat, the valve seat is arranged on the spring seat in a sealing way and can move axially, the valve seat passes through a valve port on the valve body and is arranged in a guide hole of a piston, a radial air passage is arranged at the valve port of the valve seat, radial air flow is communicated with a cavity at the bottom of the spring seat through the axial air passage, the piston is arranged in an upper cavity of the valve body in a sealing way, a pressure reducing valve cavity at the lower part of the piston is communicated with the pressure reducing flow passage and the valve port, an adjusting seat is arranged on the piston, a sealing plate arranged at the bottom of the adjusting seat is connected with the end face of an inner hole of the piston, an adjusting screw is screwed on the adjusting seat and is connected with the valve seat, a valve cap is arranged on the valve body, the pressure reducing adjusting rod is adjustably arranged on the valve cap and is connected with an upper adjusting seat, the pressure reducing spring is arranged between the piston and the upper adjusting plate and is pressed against the piston and the upper adjusting plate.
The safety valve disc of the safety valve is connected to the lower convex column of the movable safety valve seat, the lower spring seat with the conical column is arranged in the conical hole of the safety valve seat, the safety valve cap is installed on the valve body, the safety adjusting rod installed on the safety valve cap is connected with the upper spring seat, and the safety valve spring is installed between the upper spring seat and the lower spring seat and abuts against the upper spring seat and the lower spring seat.
The air outlet pressure gauge is communicated with an air outlet pressure gauge flow channel through a connecting pipe, the air outlet pressure gauge flow channel is communicated with the air outlet flow channel through a third middle flow channel, and a valve rod of an air outlet pressure gauge stop valve arranged on the valve body corresponds to the third middle flow channel and is used for controlling the on-off of the third middle flow channel.
The valve body is also provided with a back pressure relief flow channel communicated with the third middle flow channel, a valve rod of a back discharge valve arranged on the valve body corresponds to the flow channel of the air outlet pressure gauge and is used for controlling the on-off of the flow channel of the air outlet pressure gauge, and a back pressure relief head is arranged on the valve body and is communicated with the back pressure relief flow channel.
The air inlet flow channel and the pressure reducing flow channel have the same central line, and the air outlet flow channel is parallel to the air inlet flow channel.
The aperture of the bypass flow channel is smaller than that of the air outlet flow channel.
The invention is provided with a pressure reducing valve, a safety valve, a throttle valve stop valve, a pressure gauge and other valves on a valve body, realizes the control of each function by controlling each flow passage on the valve body, integrates the functions, cancels the connecting pipeline and the connecting flange of the pressure reducing valve group, has compact structure, reduces the volume and the weight, reduces the hidden trouble of the leakage of the pipeline and improves the air tightness of a high-pressure gas system. The invention integrates the pressure reducing valve, the safety valve, the throttle valve, the front stop valve, the rear stop valve and the pressure gauge into a whole, controls the corresponding flow channel on the valve body through each valve, realizes the function control of the pressure reducing module, saves the installation space, reduces the construction amount of users, and improves the construction efficiency and quality. The bypass throttle valve is arranged on the valve body, the high-pressure gas in the gas inlet channel is controlled to directly enter the gas outlet channel through the bypass throttle valve, and the pressure reducing valve is maintained and overhauled when a high-pressure gas system works normally, so that the valve has better maintenance performance. The valve body is also provided with the stop valve and the discharge valve of the pressure gauge, so that the pressure gauge is very convenient to maintain and replace, the operation is convenient, and the safety performance is high.
Drawings
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a high-pressure gas integrated type pressure reduction module according to the present invention.
Fig. 2 is a side view schematic of the structure of fig. 1.
Fig. 3 is a schematic sectional view a-a of fig. 1.
Fig. 4 is a schematic sectional structure view of B-B of fig. 2.
Fig. 5 is a schematic cross-sectional structure view of C-C of fig. 2.
Fig. 6 is a schematic sectional view of fig. 2 taken along line D-D.
FIG. 7 is a schematic view of the pressure reducing valve of the present invention.
Fig. 8 is a schematic perspective view of a high-pressure gas integrated pressure reduction module according to the present invention.
Wherein: 1-safety valve, 1-safety regulating rod, 1-2-safety valve cap, 1-3-upper spring seat, 1-4-safety valve spring, 1-5-lower spring seat, 1-6-safety valve disk, 1-7-safety valve seat, 2-intake pressure gauge, 3-pressure reducing valve, 3-1-main valve disk, 3-2-valve seat, 3-pressure reducing regulating rod, 3-4-valve cap, 3-5-upper regulating plate, 3-6-pressure reducing spring, 3-7-regulating screw, 3-8-regulating seat, 3-9-sealing plate, 3-10-main spring, 3-11-spring seat, 3-12-piston, 4-front stop valve, 4-1-valve rod, 5-valve body, 5-1-front stop valve cavity, 5-2-front stop valve flow passage, 5-3-an inlet flow channel, 5-4-a front pressure relief flow channel, 5-an inlet pressure gauge flow channel, 5-6-a transition flow channel, 5-7-a first intermediate flow channel, 5-8-a pressure relief valve cavity, 5-9-a valve port, 5-10-a pressure relief flow channel, 5-11-an outlet pressure gauge flow channel, 5-12-a rear pressure relief flow channel, 5-13-a safety valve flow channel, 5-14-a safety valve cavity, 5-15-a second intermediate flow channel, 5-16-an outlet flow channel, 5-17-a third intermediate flow channel, 5-18-a bypass flow channel, 5-19-a rear stop valve flow channel, 6-an inlet connector, 7-a connecting pipe, 8-a front pressure relief head, 9-a front pressure relief valve, 9-1-a valve stem, 10-an inlet pressure gauge stop valve, 10-1-a valve stem, 11-a bypass throttle valve, 11-1-a valve rod, 12-an air outlet pressure gauge, 13-a safety valve pressure relief joint, 14-an air outlet joint, 15-a rear stop valve, 15-1-a valve rod, 16-an air outlet pressure gauge stop valve, 16-1-a valve rod, 17-a rear relief valve, 17-1-a valve rod, 18-a rear relief head, 19-an air inlet pressure gauge joint and 20-an air outlet pressure gauge joint.
Detailed Description
As shown in fig. 1 to 8, the high-pressure gas integrated pressure reducing module of the invention comprises a valve body 5, an inlet pressure gauge 2, a front stop valve 4, a pressure reducing valve 3, a safety valve 1, a bypass throttle valve 11, a rear stop valve 15 and an outlet pressure gauge 12.
As shown in the figures 1-4, the valve body 5 of the invention is provided with an inlet flow passage 5-3, a pressure reducing flow passage 5-10 and an outlet flow passage 5-16, the inlet flow passage 5-3 is communicated with the pressure reducing flow passage 5-10 through a first middle flow passage 5-7, the inlet runner 5-3 is also communicated with the outlet runner 5-16 through a bypass runner 5-18, the pressure reducing runner 5-10 is communicated with the outlet runner 5-16 through a rear stop valve runner 5-19, therefore, one path of high-pressure gas of the invention can be discharged through the gas outlet flow passages 5-16 after passing through the pressure reducing valve 3, when the front stop valve 4 and the rear stop valve 15 are closed, when the bypass throttle valve 11 is opened, the high-pressure gas entering the pressure reducing module is discharged from the gas outlet flow passages 5-16 after being subjected to pressure reduction or not through the bypass throttle valve 11, so as to keep the normal operation of the high-pressure gas system. The gas inlet joint 6 and the gas outlet joint 14 of the invention are respectively arranged on the valve body 5 and are communicated with the gas inlet flow passage 5-3 and the gas outlet flow passage 5-16 respectively, high-pressure gas is introduced into the valve body 5 through a pipeline, and the decompressed gas is sent to a required place. The air inlet flow passage 5-3 and the pressure reducing flow passage 5-10 have the same central line, and the air outlet flow passage 5-16 is parallel to the air inlet flow passage 5-3, so that the structure is compact and reasonable, the interference can be reduced, and the valve body flow passage can be conveniently processed.
As shown in fig. 1-6 and 8, an air inlet pressure gauge 2 and an air outlet pressure gauge 12 are mounted on a valve body 5, two bumps are arranged on the valve body 5, the air inlet pressure gauge 2 and the air outlet pressure gauge 12 are mounted on the bumps, so that a pressure reduction module has high integration degree, the air inlet pressure gauge 2 and the air outlet pressure gauge 12 are respectively communicated with a respective air inlet channel 5-3 and an air outlet channel 5-16 through an air inlet pressure gauge connector 19 and an air outlet pressure gauge connector 20 through connecting pipes 7, and inlet air pressure and outlet air pressure are displayed. As shown in figures 1-6 and 8, in order to facilitate maintenance or replacement of an air inlet pressure gauge 2 and an air outlet pressure gauge 12, the air inlet pressure gauge 2 is communicated with an air inlet pressure gauge flow passage 5-5 on a valve body 5 through a connecting pipe 7, the air inlet pressure gauge flow passage 5-5 is communicated with an air inlet flow passage 5-3 through a second intermediate flow passage 5-15, a valve rod 10-1 of an air inlet pressure gauge stop valve 10 installed on the valve body 5 corresponds to the second intermediate flow passage 5-15 and is used for controlling the on-off of the second intermediate flow passage 5-15, and in operation, the air inlet pressure gauge stop valve 10 is controlled to be cut off, so that high-pressure air in the air inlet flow passage 5-3 cannot enter the air inlet pressure gauge 2, on one hand, the air inlet pressure gauge 2 can be protected, and on the other hand, the air inlet pressure gauge 2 can be conveniently replaced. As shown in the figures 3-5, the valve body 5 is also provided with a front pressure relief flow passage 5-4 communicated with a second middle flow passage 5-15, a valve rod 9-1 of a front pressure relief valve 9 arranged on the valve body 5 corresponds to the flow passage 5-5 of the air inlet pressure gauge and is used for controlling the on-off of the flow passage 5-5 of the air inlet pressure gauge, a front pressure relief head 8 is arranged on the valve body 5 and is communicated with the front pressure relief flow passage 5-4, and after the front pressure relief valve 9 is opened, high-pressure gas in the air inlet pressure gauge 2 can be discharged through a pipeline, so that the safety of using high-pressure gas such as high-pressure nitrogen gas is ensured.
Referring to fig. 1-3 and 5, an air outlet pressure gauge 12 of the invention is connected to a valve body 5, the air outlet pressure gauge 12 is communicated with a flow channel 5-11 of the air outlet pressure gauge 12 through a connecting pipe 7, the flow channel 5-11 of the air outlet pressure gauge is communicated with an air outlet flow channel 5-16 through a third intermediate flow channel 5-17, and a valve rod 16-1 of an air outlet pressure gauge stop valve 16 arranged on the valve body 5 corresponds to the third intermediate flow channel 5-17 and is used for controlling the connection and disconnection of the third intermediate flow channel 5-17. During operation, the stop valve 16 of the air outlet pressure gauge is cut off, so that high-pressure gas in the air outlet flow channel 5-16 cannot enter the air outlet pressure gauge 12, on one hand, the air outlet pressure gauge 12 can be protected, and on the other hand, the air outlet pressure gauge 12 can be conveniently replaced. As shown in the figures 3 and 6, the valve body 5 of the invention is also provided with a back pressure relief flow passage 5-12 communicated with the third middle flow passage 5-17, a valve rod 17-1 of a back discharge valve 17 arranged on the valve body 5 corresponds to the flow passage 5-11 of the air outlet pressure gauge and is used for controlling the on-off of the flow passage 5-11 of the air outlet pressure gauge, and a back pressure relief head 18 is arranged on the valve body 5 and is communicated with the back pressure relief flow passage 5-12. When the post-discharge valve 17 is opened, the high-pressure gas in the gas outlet pressure gauge 12 can be discharged through the pipeline.
As shown in the figures 1-3, a front stop valve 4 of the invention is arranged on a valve body 5, a valve casing of the front stop valve 4 is hermetically arranged at a front stop valve cavity 5-1 of the valve body 5, a valve rod 4-1 is arranged on the valve casing and can move axially, the valve rod 4-1 is connected with an adjusting handle, the valve rod 4-1 of the front stop valve 4 of the invention corresponds to a front stop valve flow passage 5-2, one end of the front stop valve flow passage 5-2 is communicated with an inlet flow passage 5-3, the other end of the front stop valve flow passage 5-2 is communicated with a first intermediate flow passage 5-7 through the front stop valve cavity 5-1 and a transition flow passage 5-6, and the on-off of the inlet flow passage 5-3 is controlled through the axial movement of the valve rod 4-1.
Referring to fig. 2 to 4, a rear stop valve 15 of the present invention is installed on a valve body 5, a valve rod 15-1 of the rear stop valve 15 corresponds to a rear stop valve flow passage 5-19, the rear stop valve flow passage 5-19 is communicated with a pressure reduction flow passage 5-10 and an air outlet flow passage 5-16, and the rear stop valve 15 is used for controlling the on-off of the rear stop valve flow passage 5-19. the rear stop valve 15 of the present invention has a structure substantially the same as that of the front stop valve 4, when the front stop valve 4 and the rear stop valve 15 are opened, and the bypass throttle valve 11 is closed to allow high-pressure gas to reach a required working pressure after passing through the pressure reduction valve 3 and to be discharged through the air outlet flow passage 5-16, and when the front stop valve 4 and the rear stop valve 15 are closed, the bypass throttle valve 11 is opened to maintain the pressure reduction valve 3, and the high-pressure gas is decompressed or not by the bypass throttle valve 11 and is discharged through the air outlet flow passage 5-16, in order to ensure the normal operation of the high-pressure gas system, the front stop valve 4 and the rear stop valve 15 of the invention can also adopt the existing stop valves with other structures.
Referring to fig. 1-3 and 7, the pressure reducing valve 3 of the present invention is mounted on a valve body 5 and located between a front stop valve 4 and a rear stop valve 15, a main valve disc 3-1 of the pressure reducing valve 3 corresponds to an end face of a valve port 5-9 on the valve body 5, and is used for controlling a gas pressure flowing from a first intermediate flow passage 5-7 into a pressure reducing flow passage 5-10 by controlling a distance between the main valve disc 3-1 of the pressure reducing valve 3 and the end face of the valve port 5-9 on the valve body 5. As shown in figures 3 and 7, a main valve disc 3-1 of a pressure reducing valve 3 is connected with a valve seat 3-2, the main valve disc 3-1 is communicated with a first intermediate flow passage 5-7, a spring seat 3-11 is hermetically arranged on the valve seat 3-2, a main spring 3-10 sleeved on the valve seat 3-2 is respectively propped against a convex shoulder of the valve seat 3-2 and the spring seat 3-11, the valve seat 3-2 is hermetically arranged on the spring seat 3-11 and can move axially, the valve seat 3-2 passes through a valve port 5-9 on a valve body 5 and is arranged in a guide hole of a piston 3-12, a radial air passage is arranged at the valve port 5-9 of the valve seat 3-2, and radial air flow is communicated with a cavity at the bottom of the spring seat 3-11 through an axial air passage, because the radial air passage and the axial air passage are arranged on the valve seat 3-2, when the outlet pressure deviates from the set pressure and is unstable, the outlet pressure enters the cavity at the bottom of the spring seat 3-11 through the radial air passage and the axial air passage which flow into the valve seat 3-2 to form back pressure gas, and the pressure is automatically adjusted to reach the set pressure value under the elastic action of the main spring 3-10 and the decompression spring 3-6 to realize stable decompression. As shown in figure 7, a piston 3-12 of the invention is hermetically arranged in a cavity of a valve body 5, a pressure reducing valve cavity 5-8 at the lower part of the piston 3-12 is communicated with a pressure reducing flow passage 5-10 and a valve port 5-9, an adjusting seat 3-8 is arranged on the piston 3-12, a sealing plate 3-9 arranged at the bottom of the adjusting seat 3-8 is connected with the end surface of an inner hole of the piston 3-12, the top surface of the valve seat 3-2 is kept sealed by the sealing plate 3-9, an adjusting screw 3-7 is screwed on the adjusting seat 3-8 and is connected with a valve seat 3-2, a valve cap 3-4 is arranged on the valve body 5, a pressure reducing adjusting rod 3-3 is adjustably arranged on the valve cap 3-4 and is connected with an upper adjusting seat 3-8, a pressure reducing spring 3-6 is arranged between the piston 3-12 and the upper adjusting plate 3-5 and is propped against the piston 3-12 and the upper adjusting plate 3-5 And the elasticity of the pressure reducing spring 3-6 is adjusted by the pressure reducing adjusting rod 3-3, and the distance between the valve disc 3-1 and the end face of the valve port 5-9 is adjusted by the adjusting screw 3-7 so as to achieve the pressure value of required gas pressure reduction.
As shown in fig. 1-3, 5 and 8, the safety valve 1 of the invention is arranged on the valve body 5 and positioned at the rear part of the pressure reducing valve 3, the safety valve disc 1-6 of the safety valve 1 is opposite to the safety valve flow passage 5-13 and is used for controlling the on-off of the safety valve flow passage 5-13, one end of the safety valve flow passage 5-13 is communicated with the pressure reducing flow passage 5-10, the other end is communicated with the safety pressure reducing flow passage, and the safety valve pressure relief connector 13 arranged on the valve body 5 is communicated with the safety pressure relief flow passage, so that gas can be intensively exhausted through a pipeline. As shown in figure 3, a safety valve disc 1-6 of the safety valve 1 is connected to a lower convex column of a movable safety valve seat 1-7, a lower spring seat 1-5 with a conical column is arranged in a conical hole of the safety valve seat 1-7, the safety valve seat 1-7 is hermetically arranged in a safety valve cavity 5-14 of a valve body 5, a safety valve cap 1-2 is arranged on the valve body 5, a safety adjusting rod 1-1 arranged on the safety valve cap 1-2 is connected with an upper spring seat 1-3, and a safety valve spring 1-4 is arranged between the upper spring seat 1-3 and the lower spring seat 1-5 and is propped against the upper spring seat 1-3 and the lower spring seat 1-5. When the pressure exceeds a set value, the safety valve discs 1-6 are opened by high-pressure airflow overcoming the elasticity of the safety spring, the safety valve flow passages 5-13 are opened, part of high-pressure gas passes through the safety valve cavity and the safety pressure relief flow passage of the safety valve 1, and the pressure reduction module is discharged from the safety valve pressure relief joint 13, so that the pressure reduction module can work reliably.
As shown in figures 1-4 and 8, a bypass throttle valve 11 of the invention is arranged on a valve body 5, a valve rod 11-1 of the bypass throttle valve 11 corresponds to a bypass flow channel 5-18 and is used for controlling the on-off of the bypass flow channel 5-18, the valve rod 11-1 of the bypass throttle valve 11 is arranged on a valve shell and can move axially, the valve rod 11-1 is connected with an adjusting handle, so that high-pressure gas flows into an outlet flow channel 5-16 from an inlet flow channel 5-3 through the bypass throttle valve 11 and is discharged, the aperture of the bypass flow channel 5-18 of the invention is smaller than that of the outlet flow channel 5-16, when the gas enters the outlet flow channel 5-16 through the bypass flow channel 5-18, the non-adjustable pressure reduction effect can be achieved, and simultaneously, the adjustable pressure reduction effect can be achieved by adjusting the aperture of the valve rod and the bypass flow channel 5-18, the pressure reducing valve 3 can be maintained.
As shown in fig. 1-8, the front stop valve 4 and the rear stop valve 15 are opened, and high-pressure gas is decompressed through the pressure reducing valve 3 via the gas inlet flow passage 5-3 and the first intermediate flow passage 5-7, and then supplied to a user via the pressure reducing flow passage 5-10 and the gas outlet flow passage 5-16 via the gas outlet connector 14; when the outlet pressure is abnormally increased, the safety valve disc 1-6 of the safety valve 1 is opened through the gas of the pressure reducing flow passage 5-10, the flow passage 5-13 of the safety valve is opened, the gas can be discharged in time through the pressure reducing joint 13 of the safety valve, the safety of the pressure reducing module is ensured, and the inlet pressure gauge 2 and the outlet pressure gauge 12 can observe the inlet pressure and the outlet pressure of the pressure reducing module at any time. When the pressure reducing valve 3 needs to be maintained, the pressure reducing valve 3 is closed, the bypass throttle valve 11 is opened, and the pressure reducing valve 3 can be overhauled when the pressure reducing valve module does not stop supplying air to a user. The invention can lead the gas out of the cabin uniformly through the safety relief valve joint 13 and the front and back pressure relief heads, thereby preventing the high-pressure gas discharged in the cabin from being over high in concentration and being safe and reliable to use.
Claims (8)
1. A high-pressure gas integrated pressure reduction module is characterized in that: comprises a valve body (5), an air inlet pressure gauge (2), a front stop valve (4), a pressure reducing valve (3), a safety valve (1), a bypass throttle valve (11), a rear stop valve (15) and an air outlet pressure gauge (12),
the pressure-reducing valve is characterized in that an air inlet flow channel (5-3), a pressure-reducing flow channel (5-10) and an air outlet flow channel (5-16) are arranged on the valve body (5), the air inlet flow channel (5-3) is communicated with the pressure-reducing flow channel (5-10) through a first middle flow channel (5-7), the air inlet flow channel (5-3) is also communicated with the air outlet flow channel (5-16) through a bypass flow channel (5-18), the pressure-reducing flow channel (5-10) is communicated with the air outlet flow channel (5-16) through a rear stop valve flow channel (5-19), and an air inlet joint (6) and an air outlet joint (14) are respectively arranged on the valve body (5) and are communicated with the air inlet flow channel (5-3) and the air outlet flow channel (5-16) respectively;
the air inlet pressure gauge (2) and the air outlet pressure gauge (12) are arranged on the valve body (5), and the air inlet pressure gauge (2) and the air outlet pressure gauge (12) are communicated with respective air inlet flow channels (5-3) and air outlet flow channels (5-16) through connecting pipes (7) to display the pressure of inlet air and the pressure of outlet air;
the front stop valve (4) is arranged on the valve body (5), a valve rod (4-1) of the front stop valve (4) corresponds to the air inlet flow channel (5-3) and is used for controlling the on-off of the air inlet flow channel (5-3), the rear stop valve (15) is arranged on the valve body (5), and a valve rod (15-1) of the rear stop valve (15) corresponds to the rear stop valve flow channel (5-19) and is used for controlling the on-off of the rear stop valve flow channel (5-19);
the pressure reducing valve (3) is arranged on the valve body (5) and is positioned between the front stop valve (4) and the rear stop valve (15), a main valve disc (3-1) of the pressure reducing valve (3) is opposite to the end face of a valve port (5-9) on the valve body (5), and the pressure reducing valve is used for controlling the pressure of gas flowing into the pressure reducing flow channel (5-10) from the first middle flow channel (5-7) by controlling the distance between the main valve disc (3-1) of the pressure reducing valve (3) and the end face of the valve port (5-9) on the valve body (5); a main valve disc (3-1) of the pressure reducing valve (3) is connected with a valve seat (3-2), the main valve disc (3-1) is communicated with a first middle flow passage (5-7), a spring seat (3-11) is installed on the valve seat (3-2) in a sealing mode, a main spring (3-10) sleeved on the valve seat (3-2) is respectively propped against a convex shoulder of the valve seat (3-2) and the spring seat (3-11), the valve seat (3-2) is installed on the spring seat (3-11) in a sealing mode and can move axially, the valve seat (3-2) penetrates through a valve port (5-9) on a valve body (5) and is arranged in a guide hole of a piston (3-12), a radial air passage is arranged at the valve port (5-9) of the valve seat (3-2), and radial air flow is communicated with a cavity at the bottom of the spring seat (3-11) through the axial air passage, the piston (3-12) is arranged in an upper cavity of the valve body (5) in a sealing manner, a pressure reducing valve cavity (5-8) at the lower part of the piston (3-12) is communicated with a pressure reducing flow passage (5-10) and a valve port (5-9), the adjusting seat (3-8) is arranged on the piston (3-12), a sealing plate (3-9) arranged at the bottom of the adjusting seat (3-8) is connected with the end face of an inner hole of the piston (3-12), an adjusting screw (3-7) is screwed on the adjusting seat (3-8) and connected with a valve seat (3-2), a valve cap (3-4) is arranged on the valve body (5), the pressure reducing adjusting rod (3-3) is arranged on the valve cap (3-4) and connected with an upper adjusting seat (3-8) in an adjustable manner, and a pressure reducing spring (3-6) is arranged between the piston (3-12) and the upper adjusting plate (3-5) and is propped against the piston (3-5) (3-12) and an upper adjusting plate (3-5);
the safety valve (1) is arranged on the valve body (5) and is positioned at the rear part of the pressure reducing valve (3), a safety valve disc (1-6) of the safety valve (1) is opposite to a safety valve flow channel (5-13) and is used for controlling the on-off of the safety valve flow channel (5-13), one end of the safety valve flow channel (5-13) is communicated with the pressure reducing flow channel (5-10), the other end of the safety valve flow channel is communicated with the safety pressure reducing flow channel, and a safety valve pressure relief connector (13) arranged on the valve body (5) is communicated with the safety pressure relief flow channel; the safety valve disc (1-6) of the safety valve (1) is connected to a lower convex column of a movable safety valve seat (1-7), a lower spring seat (1-5) with a conical column is arranged in a conical hole of the safety valve seat (1-7), a safety valve cap (1-2) is installed on a valve body (5), a safety adjusting rod (1-1) installed on the safety valve cap (1-2) is connected with an upper spring seat (1-3), and a safety valve spring (1-4) is installed between the upper spring seat (1-3) and the lower spring seat (1-5) and abuts against the upper spring seat (1-3) and the lower spring seat (1-5);
the bypass throttle valve (11) is installed on the valve body (5), and a valve rod (11-1) of the bypass throttle valve (11) corresponds to the bypass flow channel (5-18) and is used for controlling the on-off of the bypass flow channel (5-18).
2. The high pressure gas integrated pressure reduction module of claim 1, wherein: the air inlet pressure gauge (2) is communicated with an air inlet pressure gauge flow passage (5-5) on the valve body (5) through a connecting pipe (7), the air inlet pressure gauge flow passage (5-5) is communicated with an air inlet flow passage (5-3) through a second middle flow passage (5-15), and a valve rod (10-1) of an air inlet pressure gauge stop valve (10) arranged on the valve body (5) corresponds to the second middle flow passage (5-15) and is used for controlling the on-off of the second middle flow passage (5-15).
3. The high pressure gas integrated pressure reduction module of claim 2, wherein: the valve body (5) is also provided with a front pressure relief flow channel (5-4) communicated with the second middle flow channel (5-15), a valve rod (9-1) of a front discharge valve (9) arranged on the valve body (5) corresponds to the air intake pressure gauge flow channel (5-5) and is used for controlling the on-off of the air intake pressure gauge flow channel (5-5), and a front pressure relief head (8) is arranged on the valve body (5) and is communicated with the front pressure relief flow channel (5-4).
4. The high pressure gas integrated pressure reduction module of claim 2, wherein: the valve rod (4-1) of the front stop valve (4) corresponds to the front stop valve flow channel (5-2), one end of the front stop valve flow channel (5-2) is communicated with the air inlet flow channel (5-3), and the other end of the front stop valve flow channel (5-2) is communicated with the first middle flow channel (5-7) through the front stop valve cavity (5-1) and the transition flow channel (5-6).
5. The high pressure gas integrated pressure reduction module of claim 1, wherein: the air outlet pressure gauge (12) is communicated with an air outlet pressure gauge flow channel (5-11) through a connecting pipe (7), the air outlet pressure gauge flow channel (5-11) is communicated with an air outlet flow channel (5-16) through a third middle flow channel (5-17), and a valve rod (16-1) of an air outlet pressure gauge stop valve (16) arranged on the valve body (5) corresponds to the third middle flow channel (5-17) and is used for controlling the connection and disconnection of the third middle flow channel (5-17).
6. The high pressure gas integrated pressure reduction module of claim 7, wherein: the valve body (5) is also provided with a rear pressure relief flow channel (5-12) communicated with the third middle flow channel (5-17), a valve rod (17-1) of a rear discharge valve (17) arranged on the valve body (5) corresponds to the air outlet pressure gauge flow channel (5-11) and is used for controlling the on-off of the air outlet pressure gauge flow channel (5-11), and a rear pressure relief head (18) is arranged on the valve body (5) and is communicated with the rear pressure relief flow channel (5-12).
7. The high pressure gas integrated pressure reduction module of claim 1, wherein: the air inlet flow channel (5-3) and the pressure reducing flow channel (5-10) have the same central line, and the air outlet flow channel (5-16) is parallel to the air inlet flow channel (5-3).
8. The high pressure gas integrated pressure reduction module of claim 1, wherein: the aperture of the bypass flow channel (5-18) is smaller than that of the outlet flow channel (5-16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175873.0A CN106155126B (en) | 2015-04-14 | 2015-04-14 | High-pressure gas integrated pressure reduction module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510175873.0A CN106155126B (en) | 2015-04-14 | 2015-04-14 | High-pressure gas integrated pressure reduction module |
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| CN106155126B true CN106155126B (en) | 2022-09-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106885041B (en) * | 2017-05-03 | 2022-10-25 | 深圳安博智控科技有限公司 | Liquefied petroleum gas valve safety detection system |
| CN110107766A (en) * | 2019-04-28 | 2019-08-09 | 江苏沙洲阀门有限公司 | A kind of modularization reducer unit |
| CN111579177A (en) * | 2020-06-22 | 2020-08-25 | 中国船舶重工集团公司第七0四研究所 | Portable integrated air tightness test device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1509991A (en) * | 1974-02-21 | 1978-05-10 | Bergens Mek Verksted | Hydraulic system for operation of a winch |
| US4722361A (en) * | 1983-09-22 | 1988-02-02 | Vapor Corporation | Modulating pressure operated pilot relief valve |
| CN101201027A (en) * | 2006-12-12 | 2008-06-18 | C.R.F.阿西安尼顾问公司 | Electronic pressure reducer or regulator unit for feeding gas, particularly methane or hydrogen, to an internal combustion engine, and gas feeding system including this unit |
| CN101430008A (en) * | 2007-11-07 | 2009-05-13 | 广东恒基金属制品实业有限公司 | Bidirectional throttling stop valve with throttle and cut-off dual-function |
| CN101672388A (en) * | 2009-09-28 | 2010-03-17 | 常州市汇丰船舶附件制造有限公司 | High-pressure pressure-reducing valve set |
| CN201802933U (en) * | 2010-09-29 | 2011-04-20 | 中国舰船研究设计中心 | Integrated high pressure reducing valve group |
| JP2011191868A (en) * | 2010-03-12 | 2011-09-29 | Ckd Corp | Pressure controller |
| CN102498323A (en) * | 2009-05-19 | 2012-06-13 | 科瓦尔株式会社 | Pressure reducing valve |
| CN202392203U (en) * | 2011-12-26 | 2012-08-22 | 宁波星箭航天机械有限公司 | Integrated pressure reducing valve set |
-
2015
- 2015-04-14 CN CN201510175873.0A patent/CN106155126B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1509991A (en) * | 1974-02-21 | 1978-05-10 | Bergens Mek Verksted | Hydraulic system for operation of a winch |
| US4722361A (en) * | 1983-09-22 | 1988-02-02 | Vapor Corporation | Modulating pressure operated pilot relief valve |
| CN101201027A (en) * | 2006-12-12 | 2008-06-18 | C.R.F.阿西安尼顾问公司 | Electronic pressure reducer or regulator unit for feeding gas, particularly methane or hydrogen, to an internal combustion engine, and gas feeding system including this unit |
| CN101430008A (en) * | 2007-11-07 | 2009-05-13 | 广东恒基金属制品实业有限公司 | Bidirectional throttling stop valve with throttle and cut-off dual-function |
| CN102498323A (en) * | 2009-05-19 | 2012-06-13 | 科瓦尔株式会社 | Pressure reducing valve |
| CN101672388A (en) * | 2009-09-28 | 2010-03-17 | 常州市汇丰船舶附件制造有限公司 | High-pressure pressure-reducing valve set |
| JP2011191868A (en) * | 2010-03-12 | 2011-09-29 | Ckd Corp | Pressure controller |
| CN201802933U (en) * | 2010-09-29 | 2011-04-20 | 中国舰船研究设计中心 | Integrated high pressure reducing valve group |
| CN202392203U (en) * | 2011-12-26 | 2012-08-22 | 宁波星箭航天机械有限公司 | Integrated pressure reducing valve set |
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