CN217653259U - Flow valve and contain its LNG gas station - Google Patents

Abstract

The utility model discloses a flow valve and contain its LNG gas station, include: the LNG fuel supply device comprises a connecting pipe and a valve head, wherein the valve head is arranged at one end of the connecting pipe and is used for being connected with a combustion engine of power equipment and conveying LNG fuel; the valve head comprises a plug pipe and a one-way valve component arranged in the plug pipe, the one-way valve component comprises a valve sleeve which is coaxially sleeved in the plug pipe and is in butt seal with a flange part in the plug pipe through a sealing washer at the bottom of the valve sleeve, a plurality of valve holes which are formed in the curved surface direction of the outer wall of the valve sleeve, valve cores which are arranged in the valve sleeve through a valve core bracket and are in one-to-one correspondence and adaptation with the valve holes, and any valve core is connected with the valve core through an elastic telescopic rod; through the arrangement of the one-way valve component, when LNG fuel is filled through the valve head, the flow rate of the LNG fuel during filling can be limited, backflow leakage of the LNG fuel due to overlarge flow rate is avoided, and therefore the using effect and the safety and the reliability of the flow valve are guaranteed.

Description

Flow valve and contain its LNG gas station

Technical Field

The utility model relates to the technical field of valves, specifically be a flow valve and contain its LNG gas station.

Background

The LNG is a liquid mixture formed by pretreating a Natural Gas raw material, removing impurities in the Natural Gas raw material and then performing a low-temperature refrigeration process, and the common LNG is an abbreviation of Liquefied Natural Gas (Natural Gas) in English;

natural gas is a mixture whose composition varies from field to field, and contains mainly methane, nitrogen, C2-C5 saturated alkanes, and trace amounts of helium, carbon dioxide, hydrogen sulfide, etc., and LNG becomes a cryogenic liquid containing methane (96% or more), ethane (4%) and a small amount of C3-C5 alkanes after being liquefied by refrigeration. LNG is another form of energy converted from natural gas, which has been used as a power fuel for many facilities, such as ship engines, as a clean energy source.

When the LNG filling station fills power equipment, LNG fuel is often conveyed through the flow valve, when the existing flow valve is used for conveying the LNG fuel for filling, the LNG fuel is filled under the action of a certain pressure, so that the flow of the LNG fuel is often large when the LNG fuel passes through the flow valve, backflow leakage of the LNG fuel in the conveying process is easily caused, meanwhile, the filling flow of the LNG fuel is difficult to monitor constantly, and the reliability and the using effect of the flow valve are further influenced.

Disclosure of Invention

An object of the utility model is to provide a flow valve and contain its LNG gas station for solve above-mentioned problem.

In order to realize the above purpose, on the one hand, the utility model discloses a technical scheme be:

the flow valve comprises a connecting pipe and a valve head, wherein the valve head is arranged at one end of the connecting pipe; the valve head comprises a plug pipe and a one-way valve assembly arranged in the plug pipe, the one-way valve assembly comprises a valve sleeve which is coaxially sleeved in the plug pipe and is in butt seal with a flange part in the plug pipe through a sealing washer at the bottom of the valve sleeve, a plurality of valve holes which are formed in the curved surface direction of the outer wall of the valve sleeve, valve cores which are arranged in the valve sleeve through a valve core support and are in one-to-one correspondence and adaptation with the valve holes, and any one of the valve cores is connected with the valve core through an elastic telescopic rod;

the valve head also comprises a valve core vertical rod connected with the bottom of the valve core support, and a plurality of dispersing floating plates arranged around the valve core vertical rod, wherein one end of each dispersing floating plate close to the valve sleeve and the inner wall of the valve sleeve form a slit flow channel, and the cross section of each dispersing floating plate is downwards sunken to form an arc shape.

It should be noted here that, in the present invention, through the setting of the check valve component, when the LNG fuel is transported and filled through the valve head, the flow of the LNG fuel can be limited, and backflow leakage caused by too large flow during the transportation and filling of the LNG fuel can be avoided, specifically, when the LNG fuel passes through the valve sleeve, the valve core can be squeezed by the check valve component, so that the valve core pushes the elastic shrinkage rod to shrink, so that the valve core leaves the valve hole, and the check valve is opened, and further the LNG fuel circulates, and after the LNG fuel flows into the valve sleeve, the dispersion floating plate can disperse the LNG fuel and flow out through the slit flow channel, so as to disperse the flow of the LNG fuel, and effectively avoid backflow leakage caused by too large flow during the filling, thereby ensuring the use effect and safety and reliability of the flow valve.

Specifically, the valve head still is equipped with and is used for being connected with external system, and can accurate monitoring LNG fuel flow's monitoring module, the monitoring module includes:

the liquid level sensor is arranged at the bottom end of the valve core vertical rod and used for detecting the page height of the LNG fuel filling amount in the power equipment in real time;

and the ultrasonic flowmeter is positioned inside the valve core vertical rod and used for detecting the flow of the LNG fuel flowing through the dispersion plate in real time.

It should be noted here that the utility model discloses in, through level sensor's setting, can add when the flow valve is annotated, carry out real-time detection to the fuel liquid level in the external equipment that is connected with the valve head, and because equipment is when filling LNG, its liquid level often can produce certain fluctuation and fluctuation, and influence monitoring precision, therefore this scheme still ingenious is equipped with ultrasonic flowmeter, detect the flow data of the LNG fuel of convection current flow valve through ultrasonic flowmeter with this, and carry out the comprehensive calculation analysis to flow data and liquid level data through external system and draw accurate flow data, with this accuracy nature of ensureing the filling result, thereby further improve the result of use of flow valve.

Preferably, an electric push rod for pushing the dispersion floating plate is arranged at the bottom of the dispersion floating plate, the output end of the electric push rod is hinged with the dispersion floating plate, the bottom end of the electric push rod is hinged with a hinged seat on the valve core vertical rod, and one end, far away from the slit flow channel, of the dispersion floating plate is hinged with the valve core vertical rod.

Particularly, through the setting of electric putter, can make the user according to the particular case when LNG fuel filling, operate it and promote dispersion kickboard and overturn to realize adjusting the width size of slit runner, thereby improve its result of use.

Further, still including the jack catch subassembly that is used for fixed valve head, the jack catch subassembly is including cup jointing the cutting ferrule at the grafting pipe surface, and the equidistance is seted up in the through-hole of cutting ferrule surface, and the spring jack catch in a plurality of through-holes is installed to the one-to-one.

The utility model discloses in, through the setting of jack catch subassembly, can make the user be connected the valve head with power equipment's filler hole and fasten more when inserting, avoid the valve head to take place to drop and the accident appears when the filling, particularly, exactly when the filler hole of power equipment is inserted to the pipe of pegging graft, cutting ferrule accessible spring jack catch carries out the chucking centre gripping to power equipment's filler hole.

Furthermore, the one end that the valve head was kept away from to the connecting pipe still is equipped with handle components, handle components is including installing the adapter sleeve at the connecting pipe surface, and the symmetry sets up in adapter sleeve both sides, be the V style of calligraphy, and with the articulated handle of adapter sleeve looks.

Through the setting of handle, the flow valve is held through it that the person of being convenient for can be better, makes the flow valve more stable in whole filling flow.

Furthermore, two circular motion is all used as the centre of a circle with its position department that articulates with the adapter sleeve to the handle surface articulates there is the connecting plate, the connecting plate is kept away from the one end of handle and is established the slip cap of connecting pipe surface with the slip cap and articulated mutually, the valve head is kept away from to the adapter sleeve relatively, just the bottom of slip cap is established the lag that just is close to valve head position department on the connecting pipe through pull rod and slip cap and is connected, the inner wall of lag laminates with the outer wall of cutting ferrule mutually, and it realizes opening and shutting sheltering from through sliding to the cutting ferrule.

Particularly, in this scheme, when the user is holding the handle and is being connected the valve head of flow valve with power equipment's filling port, the handle that can upwards overturn, so that drive the sliding sleeve upwards slip on the connecting pipe through the connecting plate after the handle upset, thereby make the sliding sleeve slide on the back and slide on through pull rod pulling lag, so that the sliding sleeve slides on the back and expose the valve head, thereby convenient to use person is connected the valve head with power equipment's filling port, and after the filling is accomplished, the user can pass through the upset handle once more, make it drive the lag and get back to the normal position, in order to realize sheltering from the protection to the valve head, thereby avoid the valve head to expose outside and appear damaging.

On the other hand, the utility model discloses a another technical scheme do:

an LNG gas station comprises an LNG gas dispenser body; the LNG dispenser body is connected with a filling hose, and the filling hose is provided with a flow valve.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) In the present invention, through the setting of the check valve component, when the LNG fuel is transported and filled through the valve head, the flow of the LNG fuel can be limited, and backflow leakage caused by too large flow during the transportation and filling of the LNG fuel can be avoided, specifically, when the LNG fuel passes through the valve sleeve, the valve core can be extruded to push the elastic shrinkage rod to shrink, so that the valve core leaves the valve hole, and the check valve is opened, and the LNG fuel circulates;

(2) The utility model discloses in, through level sensor's setting, can carry out the filling at the flow valve, carry out real-time detection to the fuel liquid level in the external equipment that is connected with the valve head, and because equipment when filling LNG, its liquid level often can produce certain fluctuation and fluctuation, and influence the monitoring precision, therefore this scheme still ingenious is equipped with ultrasonic flowmeter, detect the flow data of the LNG fuel of flow through the flow valve through ultrasonic flowmeter with this, and carry out comprehensive calculation analysis to flow data and liquid level data through external system and obtain accurate flow data, with this accuracy nature of guaranteeing the filling result, thereby further improve the result of use of flow valve;

(3) The utility model discloses in, when the user is holding the handle and is being connected the valve head of flow valve with power equipment's filler, can upwards overturn the handle, so that after the handle upset drive the sliding sleeve upwards through the connecting plate and slide on the connecting pipe, thereby make the sliding sleeve slide up after the upper slide go up through the pull rod pulling lag and slide up, so that after the sliding sleeve slides up, expose the valve head, thereby the user of being convenient for is connected the valve head with power equipment's filler, and after filling, the user can pass through the upset handle once more, make it drive the lag and get back to the normal position, so as to realize sheltering from the protection to the valve head, thereby avoid the valve head to expose outside and appear damaging, with this further improvement flow valve's result of use;

to sum up, the utility model has the advantages of excellent in use effect uses the safety and stability, connects reliable operation, has very high practical value and spreading value in valve technical field.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention (without protecting jacket);

FIG. 3 is a schematic view of a partial structure of the valve head of the present invention;

FIG. 4 is an enlarged view of a portion of the structure of the present application A;

FIG. 5 is a schematic view showing the state of the dispersion float plate and the vertical rod of the valve core;

fig. 6 is a block diagram of the flow of the present invention (monitoring module and external system).

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1. a connecting pipe; 2. a valve head; 20. a one-way valve assembly; 200. a valve housing; 201. a valve bore; 202. a spool holder; 203. a valve core; 204. an elastic telescopic rod; 21. a valve core vertical rod; 22. dispersing the floating plate; 23. a slit flow channel; 24. a liquid level sensor; 25. an ultrasonic flow meter; 26. an electric push rod; 27. inserting a pipe; 3. a handle assembly; 30. connecting sleeves; 31. a handle; 32. a connecting plate; 33. a sliding sleeve; 34. a pull rod; 35. a protective sleeve; 4. a jaw assembly; 40. a card sleeve; 41. spring jaws.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

First, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 6, the present embodiment provides a flow valve, which includes a connecting pipe 1 and a valve head 2, where the valve head 2 is disposed at one end of the connecting pipe 1, and is used for connecting with a combustion engine of a power plant and delivering LNG fuel;

the valve head 2 comprises a plug pipe and a one-way valve assembly 20 arranged in the plug pipe, the one-way valve assembly 20 comprises a valve sleeve 200 coaxially sleeved in the plug pipe and abutted and sealed with a flange part in the plug pipe through a sealing washer at the bottom of the valve sleeve, a plurality of valve holes 201 formed in the curved surface direction of the outer wall of the valve sleeve 200, valve cores 203 which are arranged in the valve sleeve 200 through valve core supports 202 and are in one-to-one correspondence and adaptation with the plurality of valve holes 201, and any one of the valve cores 203 is connected with the valve core 203 through an elastic telescopic rod 204;

the valve head 2 further comprises a valve core vertical rod 21 connected with the bottom of the valve core support 202, and a plurality of dispersion floating plates 22 arranged around the valve core vertical rod 21, wherein one end of each dispersion floating plate 22 close to the valve sleeve 200 and the inner wall of the valve sleeve 200 form a slit flow channel 23, and the cross section of each dispersion floating plate 22 is downwards sunken to form an arc shape.

It should be noted here that, in the present invention, through the setting of the check valve assembly 20, when the LNG fuel is filled through the valve head 2, the flow rate when the LNG fuel is filled can be limited, thereby preventing the LNG fuel from flowing back and leaking due to an excessive flow rate, specifically, when the LNG fuel passes through the valve housing 200, the LNG fuel can be squeezed by the valve core 203, so that the valve core 203 pushes the elastic shrinkage rod to shrink, thereby the valve core 203 leaves the valve hole 201, and opens the check valve, thereby allowing the LNG fuel to flow through, and after the LNG fuel flows into the valve housing 200, the dispersion floating plate 22 can disperse the LNG fuel and flow out through the slit flow channel 23, thereby achieving the dispersion of the flow rate when the LNG fuel is filled, and effectively preventing the LNG flow back and leaking due to an excessive flow rate when the LNG fuel is filled, thereby ensuring the use effect and the safety and reliability of the LNG flow valve.

Referring to fig. 3, 4 and 6, the valve head 2 is further provided with a monitoring module for connecting with an external system and accurately monitoring the flow rate of the LNG fuel, and the monitoring module includes:

the liquid level sensor 24 is arranged at the bottom end of the valve core vertical rod 21 and is used for detecting the page height of the LNG fuel filling amount in the power equipment in real time;

and the ultrasonic flowmeter 25 is positioned inside the valve core vertical rod 21 and used for detecting the flow of the LNG fuel flowing through the dispersion plate in real time.

It needs to explain here, in the utility model discloses in, through level sensor 24's setting, can carry out the filling at the flow valve, carry out real-time detection to the fuel liquid level in the external equipment that is connected with valve head 2, and because equipment is when filling LNG, its inside liquid level often can produce certain fluctuation and fluctuate, thereby can influence level sensor 24's detection precision, consequently this scheme is still ingenious be equipped with ultrasonic flowmeter 25, detect the flow data of the LNG fuel of flow through the flow valve with this through ultrasonic flowmeter 25, and carry out the comprehensive calculation analysis to flow data and liquid level data through external system and obtain accurate flow data, with this accuracy nature of ensureing the filling result, thereby further improve the result of use of flow valve. It should be further noted that the liquid level sensor 24 can emit ultrasonic pulses during measurement, the sound waves are reflected by the liquid surface and then received by the same sensor, converted into electrical signals by the piezoelectric crystal, and the distance from the sensor to the surface of the measured liquid is calculated by the time between the emission and the reception of the sound waves, and the measured medium is almost not limited due to the adoption of non-contact measurement, so that the liquid level sensor can be widely used for measuring the heights of various liquids and solid materials; the detection principle of the ultrasonic flowmeter 25 is based on a speed difference method, and it is further described that in the scheme, the liquid level sensor and the ultrasonic flowmeter are selected from the liquid level sensor and the ultrasonic flowmeter, and the detection principle, the circuit connection and the program design are the prior art.

Specifically, referring to fig. 4, an electric push rod 26 for pushing the dispersion floating plate 22 is disposed at the bottom of the dispersion floating plate 22, an output end of the electric push rod 26 is hinged to the dispersion floating plate 22, a bottom end of the electric push rod is hinged to a hinge seat on the valve core vertical rod 21, and an end of the dispersion floating plate 22 away from the slit flow passage 23 is hinged to the valve core vertical rod 21.

Specifically, through the arrangement of the electric push rod 26, a user can operate the electric push rod to push the dispersion floating plate 22 to turn over according to the specific situation of the LNG refueling process, so as to adjust the width dimension of the slit flow channel 23, thereby improving the use effect of the slit flow channel.

Specifically referring to fig. 1 and 2, the valve head assembly further includes a jaw assembly 4 for fixing the valve head 2, wherein the jaw assembly 4 includes a sleeve 40 sleeved on an outer surface of the insertion pipe 27, through holes equidistantly formed in an outer surface of the sleeve 40, and spring jaws 41 installed in the through holes in a one-to-one correspondence manner.

The utility model discloses in, through jaw assembly 4's setting, can make the user be connected valve head 2 and power equipment's filling port and fasten more when inserting, avoid valve head 2 to take place to drop and the accident appears when the filling, particularly, exactly when the filling port of power equipment is inserted to grafting pipe 27, clamping sleeve 40 accessible spring jack catch 41 carries out the chucking centre gripping to power equipment's filling port.

Specifically, referring to fig. 1 and fig. 2, a handle assembly 3 is further disposed at one end of the connecting pipe 1 away from the valve head 2, and the handle assembly 3 includes a connecting sleeve 30 mounted on an outer surface of the connecting pipe 1, and handles 31 symmetrically disposed at two sides of the connecting sleeve 30, in a V shape, and hinged to the connecting sleeve 30.

Through the setting of handle 31, the flow valve can better be held to the user through it, makes the flow valve more stable in whole filling procedure.

Specifically, referring to fig. 1 and fig. 2, the two handles 31 make a circular motion with the hinged position of the handle 31 and the connecting sleeve 30 as a center of circle, the outer surface of any one of the handles 31 is hinged with a connecting plate 32, one end of the connecting plate 32 far away from the handle 31 is hinged with a sliding sleeve 33 of the sliding sleeve 33 arranged on the outer surface of the connecting pipe 1, the sliding sleeve 33 is far away from the valve head 2 compared with the connecting sleeve 30, the bottom end of the sliding sleeve 33 is connected with a protecting sleeve 35 arranged on the connecting pipe 1 and close to the valve head 2 through a pull rod 34 and the sliding sleeve 33, the inner wall of the protecting sleeve 35 is attached to the outer wall of the ferrule, and the protecting sleeve is opened and closed by sliding.

Particularly, in this scheme, when the user is holding handle 31 and is connected the valve head 2 of flow valve with power equipment's filler, can upwards overturn handle 31, so that handle 31 overturns the back and drives the sliding sleeve upwards to slide on connecting pipe 1 through connecting plate 32, thereby make the sliding sleeve slide the back and slide through pull rod 34 pulling lag 35, so that slide the back and expose valve head 2 on the sliding sleeve, thereby convenient to use person is connected valve head 2 with power equipment's filler, and after the filling is accomplished, the user can pass through upset handle 31 once more, make it drive lag 35 and get back to the normal position, in order to realize sheltering from the protection to valve head 2, thereby avoid valve head 2 to expose outside and appear damaging.

Example 2

As shown in fig. 1 to 6, the present invention further provides an LNG refueling station based on embodiment 1, including an LNG refueling machine body; the LNG dispenser body is connected with a filling hose, and the filling hose is provided with a flow valve in the embodiment.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A flow valve is characterized by comprising a connecting pipe (1) and a valve head (2), wherein the valve head (2) is arranged at one end of the connecting pipe (1);

the valve head (2) comprises an inserting pipe (27) and a check valve component (20) arranged in the inserting pipe (27), the check valve component (20) comprises a valve sleeve (200) which is coaxially sleeved in the inserting pipe (27) and is in butt joint sealing with a flange part in the inserting pipe (27) through a sealing gasket at the bottom of the valve sleeve, a plurality of valve holes (201) formed in the curved surface direction of the outer wall of the valve sleeve (200), valve cores (203) which are arranged in the valve sleeve (200) through valve core supports (202) and are in one-to-one correspondence and adaptation with the valve holes (201), and any valve core (203) is connected with the valve core (203) through an elastic telescopic rod (204);

the valve head (2) further comprises a valve core vertical rod (21) connected with the bottom of the valve core support (202), and a plurality of dispersing floating plates (22) arranged on the periphery of the valve core vertical rod (21), wherein one ends, close to the valve sleeve (200), of the dispersing floating plates (22) and the inner wall of the valve sleeve (200) form slit flow channels (23), and the cross sections of the dispersing floating plates (22) are downwards sunken to form an arc shape.

2. A flow valve according to claim 1, characterized in that the valve head (2) is also provided with a monitoring module for connection to external systems and for accurate monitoring of LNG fuel flow, the monitoring module comprising:

the liquid level sensor (24) is arranged at the bottom end of the valve core vertical rod (21) and is used for detecting the page height of the LNG fuel filling amount in the power equipment in real time;

and the ultrasonic flow meter (25) is positioned inside the valve core vertical rod (21) and is used for detecting the flow of the LNG fuel flowing through the dispersion plate in real time.

3. A flow valve according to claim 2, characterised in that an electric push rod (26) is arranged at the bottom of the dispersion float plate (22) for pushing the dispersion float plate (22), the output end of the electric push rod (26) is hinged with the dispersion float plate (22), the bottom end of the electric push rod is hinged with a hinge seat on the valve core vertical rod (21), and the end of the dispersion float plate (22) far away from the slit flow passage (23) is hinged with the valve core vertical rod (21).

4. A flow valve according to claim 1 characterized in that it further comprises a jaw assembly (4) for fixing the valve head (2), the jaw assembly comprising a ferrule (40) sleeved on the outer surface of the bayonet tube (27), through holes equidistantly arranged on the outer surface of the ferrule (40), and spring jaws (41) installed in the through holes in one-to-one correspondence.

5. A flow valve as claimed in claim 1, characterized in that the end of the connecting pipe (1) far away from the valve head (2) is provided with a handle assembly (3), the handle assembly (3) comprises a connecting sleeve (30) mounted on the outer surface of the connecting pipe (1), and handles (31) symmetrically arranged on both sides of the connecting sleeve (30), having a V-shape, and hinged to the connecting sleeve (30).

6. A flow valve according to claim 5, characterized in that both handles (31) are circularly moved around the center of the circle at the position where they are hinged to the connecting sleeve (30), a connecting plate (32) is hinged to the outer surface of any one of the handles (31), one end of the connecting plate (32) remote from the handle (31) is hinged to a sliding sleeve (33) of which the sliding sleeve (33) is arranged on the outer surface of the connecting pipe (1), the sliding sleeve (33) is remote from the valve head (2) compared with the connecting sleeve (30), the bottom end of the sliding sleeve (33) is connected to a protecting sleeve (35) which is arranged on the connecting pipe (1) and is close to the valve head (2) through a pull rod (34) and the sliding sleeve (33), the inner wall of the protecting sleeve (35) is attached to the outer wall of the connecting pipe, and the protecting sleeve is opened and closed by sliding the clamping sleeve.

7. An LNG gas station comprises an LNG gas dispenser body; the LNG dispenser body is connected with a filling hose, and the filling hose is provided with the flow valve as claimed in any one of claims 1 to 6.

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