CN203627894U

CN203627894U - Compressed natural gas and fuel gas integrated control valve

Info

Publication number: CN203627894U
Application number: CN201320690769.1U
Authority: CN
Inventors: 杜建平; 李林; 李龙安
Original assignee: ZHEJIANG LAB TECHNOLOGY CONTROL SYSTEM Co Ltd
Current assignee: ZHEJIANG LAB TECHNOLOGY CONTROL SYSTEM Co Ltd
Priority date: 2013-11-04
Filing date: 2013-11-04
Publication date: 2014-06-04
Anticipated expiration: 2023-11-04

Abstract

The utility model provides a compressed natural gas and fuel gas integrated control valve which comprises a gas filling port, a first joint used for being connected with a gas storage bottle and a second joint used for being connected with an engine, wherein a gas filling channel is formed between the gas filling port and the first joint, a main gas channel is formed between the first joint and the second joint, and gas filling valves used for opening and closing the gas filling channel are further arranged; the gas filling port, the first joint, the second joint and the gas filling valve are all integrated on a hard box body; and the gas filling channel and the main gas channel are tube cavities in the box body. The compressed natural gas and fuel gas integrated control valve has the benefits that all parts of a compressed natural gas supply system are integrated on one hard box body, so that pipeline gas leakage is prevented effectively, and the safety is improved greatly; and the gas filling channel and the main gas channel are arranged reasonably, and processing is facilitated; and the gas filling valves and the gas filling port are reasonable in structure and quite fast and convenient to dismount, mount and operate.

Description

Compressed natural gas combustion gas integrated control valve

Technical field

The utility model relates to gas combustion automobile technical field, is specifically related to a kind of CNG combustion gas integrated control valve with overcurrent protection structure.

Background technique

Existing compressed natural gas gas control valve generally comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with the air entraining valve that adds flow channel for opening and closing; Adding gas port, the first joint, the second joint, air entraining valve is all arranged on a panel and connects by pipeline.Because pipeline exposes, gas leakage point is many, and easily generation vibration of motor motion, is easy to occur pipeline leakage.

Summary of the invention

The problems referred to above that the utility model exists for prior art, provide a kind of compressed natural gas combustion gas integrated control valve.

Model utility object of the present utility model realizes by following scheme: compressed natural gas combustion gas integrated control valve, it is characterized in that being to comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with the air entraining valve that adds flow channel for opening and closing; Describedly add all integrated being arranged on a hard box body of gas port, the first joint, the second joint, air entraining valve, adding flow channel and main gas flow is the tube chamber of box body inside.

For making full use of the confined space in vehicle frame, hard box body is rectangular-shaped, the first joint and the second joint are positioned on hard box body two parallel side walls and axial offset setting, air entraining valve passes the main gas flow with the first joint coaxial communication, adding gas port is positioned at the first joint, the second joint and all on vertical sidewall, adds gas port and be provided with dust plug.

Further, described air entraining valve comprises air guide joint, aerating valve rod and be sleeved on the rotary actuator on aerating valve rod, air guide joint location is inserted in hard box body and vertically through main gas flow, air guide joint has the cross through hole being communicated with main gas flow, air guide joint front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod is sleeved in air entraining valve pole socket, air entraining valve pole socket inserts from the hard box body another side relative with air guide joint tail end, aerating valve rod front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket and hard inboard wall of cartridge, form transition chamber thereof, air guide joint front end stretches in transition chamber thereof, transition chamber thereof with add gas port and be communicated with.

Further, the described rotary actuator being sleeved on aerating valve rod is handwheel, handwheel setting sleeve is contained on aerating valve rod, handwheel top has cavity volume, the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume, and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap of cavity volume opening.

Further, described hard box body bottom has emptying tube chamber, and emptying tube chamber is communicated with main gas flow, is provided with emptying plug in emptying tube chamber, and emptying plug comprises the bott stick being threaded with emptying tube chamber and stretches out the external end cap of rigid packet.

As the preferred version that adds gas port dust prevention, the described gas port that adds runs through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, and aerating valve seat interpolation enters bolt-type dust plug, bolt-type dust plug main body has at least two ring annular grooves, circular groove cover has rubber washer, and bolt-type dust plug tail end is connected with mooring line, has for the fixing locating column of the mooring line the other end on hard box body.

As another preferred version that adds gas port dust prevention, the described gas port that adds runs through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat end suit aerating valve port protective housing, aerating valve seat interpolation enters the seizing type dust plug with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line.

Further, hard box body is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow and be all the flat that equal diameter is extended, diameter range is 6～12mm.

The beneficial effects of the utility model are: each component integration of compressed natural gas air supply system is arranged on a hard box body, effectively prevents pipeline gas leakage, greatly improve Security; Add flow channel, main gas flow arranges rationally, be convenient to processing; Air entraining valve and to add port configurations reasonable, dismounting and operation are all efficient and convenient.

Accompanying drawing explanation

Fig. 1 is the main apparent direction structural representation of the utility model embodiment one.

Fig. 2 is the left apparent direction structural representation of the utility model embodiment one.

Fig. 3 be in Fig. 1 A-A to sectional view.

Fig. 4 be in Fig. 1 B-B to sectional view.

Fig. 5 is the main apparent direction structural representation of the utility model embodiment two.

Fig. 6 is the left apparent direction structural representation of the utility model embodiment two.

Fig. 7 be in Fig. 5 A-A to sectional view.

Fig. 8 be in Fig. 5 B-B to sectional view.

Embodiment

Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail:

embodiment one

Shown in accompanying drawing 1 to Fig. 4, compressed natural gas combustion gas integrated control valve of the present utility model, comprise add gas port 1, for connecting the first joint 2 of air cylinder and the second joint 3 for connecting engine, add between gas port 1 and the first joint 2 and there is the flow channel of adding, between the first joint 2 and the second joint 3, there is main gas flow 4, be also provided with the air entraining valve 5 that adds flow channel for opening and closing; Add gas port 1, the first joint 2, the second joint 3, all integrated being arranged on a hard box body 9 of air entraining valve 5, add the tube chamber that flow channel and main gas flow 4 are box body inside.

For improving space availability ratio and reducing die cost, hard box body 9 is rectangular-shaped, the first joint 2 and the second joint 3 are positioned on 9 liang of parallel side walls of hard box body and axial offset setting, air entraining valve 5 passes the main gas flow 4 with the first joint coaxial communication, adding gas port 1 is positioned at the first joint 2, the second joint 3 and all on vertical sidewall, adds gas port 1 and be provided with dust plug.

For guaranteeing further sealing and operation ease, air entraining valve 5 comprises air guide joint 5A, aerating valve rod 5B and be sleeved on the rotary actuator 5C on aerating valve rod, air guide joint 5A inserts location in hard box body and vertically through main gas flow 4, air guide joint 5A has the cross through hole being communicated with main gas flow 4, air guide joint 5A front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod 5B is sleeved in air entraining valve pole socket 5D, air entraining valve pole socket 5D inserts from hard box body 9 another side relative with air guide joint 5A tail end, aerating valve rod 5B front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket 5D and hard box body 9 inwalls, form transition chamber thereof 5E, air guide joint 5A front end stretches in transition chamber thereof 5E, transition chamber thereof 5E with add gas port 1 and be communicated with.

The rotary actuator 5C being sleeved on aerating valve rod 5B is handwheel, handwheel setting sleeve is contained on aerating valve rod 5B, handwheel top has cavity volume, the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume, and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap 5F of cavity volume opening.

Hard box body 9 bottoms have emptying tube chamber 12, and emptying tube chamber 12 is communicated with main gas flow 4, are provided with emptying plug 13 in emptying tube chamber 12, and emptying plug 13 comprises the bott stick being threaded with emptying tube chamber and stretches out the end cap outside hard box body 9.

The gas port 1 that adds of the present embodiment runs through hard box body 9, back side screw thread inserts turnbuckle 1A, turnbuckle 1A is set with basin type packing ring 1B and adds gas port inner wall sealing, positive nested insertion aerating valve seat 1C, in aerating valve seat 1C, insert bolt-type dust plug 1D, bolt-type dust plug 1D main body has at least two ring annular grooves, and circular groove cover has rubber washer 14, bolt-type dust plug 1D tail end is connected with mooring line 15, has for the fixing locating column 16 of mooring line 15 the other ends on hard box body 9.

For balancing safety and processing cost, hard box body 9 is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow 4 and be all the flat that equal diameter is extended, diameter range is 6～12mm.

embodiment two

With reference to Fig. 6 to Fig. 9, the present embodiment and embodiment's one difference is: as another preferred version that adds gas port dust prevention, add gas port 1 and run through hard box body, back side screw thread inserts turnbuckle 1A, turnbuckle 1A is set with basin type packing ring 1B and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat 1E end suit aerating valve port protective housing 17, aerating valve seat interpolation enters the seizing type dust plug 1F with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line 15.Embodiment one mooring line is beads shape, and the mooring line 15 of the present embodiment is soft band shape.In the time of inflating gas cylinder, open air entraining valve 5, after inflation finishes, close air entraining valve 5.

Although the utility model illustrates and describes by reference to preferred embodiment, but those of ordinary skills should understand, can be not limited to the description of the present embodiment, in the scope of claims, can make the various variations in form and details.

Claims

1. compressed natural gas combustion gas integrated control valve, it is characterized in that being to comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with the air entraining valve that adds flow channel for opening and closing; Describedly add all integrated being arranged on a hard box body of gas port, the first joint, the second joint, air entraining valve, adding flow channel and main gas flow is the tube chamber of box body inside.

2. compressed natural gas combustion gas integrated control valve according to claim 1, it is characterized in that: described hard box body is rectangular-shaped, the first joint and the second joint are positioned on hard box body two parallel side walls and axial offset setting, air entraining valve passes the main gas flow with the first joint coaxial communication, adding gas port is positioned at the first joint, the second joint and all on vertical sidewall, adds gas port and be provided with dust plug.

3. compressed natural gas combustion gas integrated control valve according to claim 2, it is characterized in that: described air entraining valve comprises air guide joint, aerating valve rod and be sleeved on the rotary actuator on aerating valve rod, air guide joint location is inserted in hard box body and vertically through main gas flow, air guide joint has the cross through hole being communicated with main gas flow, air guide joint front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod is sleeved in air entraining valve pole socket, air entraining valve pole socket inserts from the hard box body another side relative with air guide joint tail end, aerating valve rod front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket and hard inboard wall of cartridge, form transition chamber thereof, air guide joint front end stretches in transition chamber thereof, transition chamber thereof with add gas port and be communicated with.

4. compressed natural gas combustion gas integrated control valve according to claim 3, it is characterized in that: described in the rotary actuator that is sleeved on aerating valve rod be handwheel, handwheel setting sleeve is contained on aerating valve rod, handwheel top has cavity volume, the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume, and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap of cavity volume opening.

5. according to the compressed natural gas combustion gas integrated control valve described in claim 1 to 4 any one, it is characterized in that: described hard box body bottom has emptying tube chamber, emptying tube chamber is communicated with main gas flow, in emptying tube chamber, be provided with emptying plug, emptying plug comprises the bott stick being threaded with emptying tube chamber and stretches out the external end cap of rigid packet.

6. according to the compressed natural gas combustion gas integrated control valve described in claim 1 to 4 any one, it is characterized in that: described in add gas port and run through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat interpolation enters bolt-type dust plug, bolt-type dust plug main body has at least two ring annular grooves, circular groove cover has rubber washer, bolt-type dust plug tail end is connected with mooring line, has for the fixing locating column of the mooring line the other end on hard box body.

7. according to the compressed natural gas combustion gas integrated control valve described in claim 1 to 4 any one, it is characterized in that: described in add gas port and run through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat end suit aerating valve port protective housing, aerating valve seat interpolation enters the seizing type dust plug with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line.

8. according to the compressed natural gas combustion gas integrated control valve described in claim 1 to 4 any one, it is characterized in that: hard box body is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow and be all the flat that equal diameter is extended, diameter range is 6～12mm.