CN217030066U - Gas proportional valve and gas water heater with same - Google Patents

Abstract

The utility model discloses a gas proportional valve and a gas water heater with the same, wherein the gas proportional valve comprises: a main valve body, wherein a first air flow channel is formed in the main valve body; the main valve body is provided with a regulating valve and a valve core positioned in the first air flow channel, and the regulating valve is used for driving the valve core to move in the first air flow channel so as to regulate the air output of the first air flow channel; the first air flow channel is arranged to be a normally open channel, and each third air flow channel is arranged to be selectively communicated with the first air flow channel. According to the gas proportional valve, the second gas flow channel is normally communicated with the first gas flow channel, so that the minimum load of a gas water heater is reduced conveniently, each third gas flow channel can be selectively communicated with the first gas flow channel, so that gas can flow out through different gas outlet channels conveniently, the load adjusting range of the gas water heater is expanded, and the performance of the gas water heater is improved conveniently.

Description

Gas proportional valve and gas water heater with same

Technical Field

The utility model relates to the technical field of domestic electric appliances, in particular to a gas proportional valve and a gas water heater with the same.

Background

The miniaturization of a gas water heater is a trend of industry development, the miniaturization of the gas water heater can meet requirements by designing the sizes of parts of the water heater to be smaller, in the related technology, a gas proportional valve is used as a core part of the gas water heater, the lower end of a main valve body of the gas water heater is provided with an air inlet connector, the air inlet connector is connected with an air inlet pipe, and then the air inlet pipe is connected with a gas pipeline so as to realize the transmission of gas from the gas pipeline to the gas proportional valve. Wherein, the inside two gas passageways that set up usually of segmentation valve body, and two gas passageways are controlled the switching by the segmentation valve respectively, but two gas passageways's arrangement mode can lead to gas heater's minimum load too big, and the control range undersize of gas heater load, is unfavorable for the promotion of gas heater performance.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a gas proportional valve, which can reduce the minimum load of a gas water heater, facilitate the expansion of the load adjustment range of the gas water heater, and facilitate the improvement of the performance of the gas water heater.

According to the embodiment of the utility model, the gas proportional valve comprises: the main valve body is internally provided with a first air flow channel; the main valve body is provided with a regulating valve and a valve core positioned in the first air flow channel, and the regulating valve is used for driving the valve core to move in the first air flow channel so as to regulate the air output of the first air flow channel; the second air flow channel is set to be a normally open channel, and each third air flow channel is set to be selectively communicated with the first air flow channel.

According to the gas proportional valve provided by the embodiment of the utility model, the second gas flow channel and the at least two third gas flow channels are arranged on the segmented valve body, the second gas flow channel is normally communicated with the first gas flow channel, so that the gas output of the at least two third gas flow channels is convenient to reduce, and the minimum load of the gas water heater is reduced.

According to the fuel gas proportional valve, each third air flow channel is provided with a sectional valve, and the sectional valve is used for controlling the air outlet state of the corresponding third air flow channel.

According to the gas proportional valve, the adjusting valve is spaced from the section valve and/or the adjusting valve is perpendicular to the section valve.

According to the gas proportional valve of some embodiments of the utility model, the main valve body is further provided with a stop valve for selectively opening or closing the first gas flow passage, and the stop valve is spaced apart from the regulating valve.

According to the gas proportional valve, the stop valve and the section valve are distributed in parallel and are perpendicular to the regulating valve.

According to the gas proportional valve, the section valve is located above the stop valve, and the height of the stop valve is higher than that of the regulating valve.

According to the gas proportional valve of some embodiments of the present invention, a return spring is further disposed in the first gas flow passage, the return spring elastically abuts against between the segment valve body and the valve core, and the return spring elastically pre-tensions the valve core in a direction away from the segment valve body.

According to the gas proportional valve provided by the embodiment of the utility model, a support is arranged in the segmented valve body, the support comprises a cylindrical body and a plurality of clamping ribs distributed on the outer peripheral wall of the cylindrical body in a surrounding manner, clamping notches are formed at the end parts of the clamping ribs, and the end parts of the reset springs are clamped at the clamping notches of the clamping ribs.

According to the gas proportional valve, the outer peripheral wall of the valve core is sleeved with a first sealing gasket, and the first sealing gasket is suitable for being in sealing and pressing between the valve core and the main valve body.

According to the gas proportional valve of some embodiments of the present invention, the regulating valve includes a valve seat, a first magnetic member and a second magnetic member, the valve seat is connected to the main valve body, the first magnetic member and the second magnetic member are both installed in the valve seat, the second magnetic member is located on one side of the first magnetic member close to the second magnetic member and is movable relative to the valve seat, and the first magnetic member is adapted to drive the second magnetic member to push the valve core to move when being powered on.

According to the fuel gas proportional valve provided by the embodiment of the utility model, the sectional valve body is provided with the clamping hooks, the clamping hooks are positioned on the left side and/or the right side of the sectional valve body, the clamping hooks are provided with the clamping grooves which are communicated along the front-back direction, and the power line of the sectional valve is suitable for penetrating through the clamping grooves along the front-back direction.

According to the gas proportional valve of some embodiments of the utility model, the number of the third gas flow channels is two, and the second gas flow channel is located between the two third gas flow channels.

According to the gas proportional valve of some embodiments of the present invention, the second gas flow channel and the two third gas flow channels are distributed in parallel, and the extending direction of the second gas flow channel and the extending direction of the third gas flow channel are both perpendicular to the gas flow direction at the inlet of the first gas flow channel.

According to the gas proportional valve of some embodiments of the utility model, the first gas flow channel comprises a transition flow channel, and the transition flow channel extends along the horizontal direction.

According to the fuel gas proportional valve, the main valve body is provided with the gas inlet pipe, the gas inlet pipe is provided with the gas inlet communicated with the first gas flow channel, and the gas inlet pipe is provided with pipe threads communicated with the gas inlet pipeline.

The utility model also provides a gas water heater.

The gas water heater comprises the gas proportional valve in any one of the embodiments.

The advantages of the gas water heater and the gas proportional valve are the same compared with the prior art, and are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a gas proportional valve according to some embodiments of the present invention;

FIG. 2 is an exploded view of a gas proportional valve according to some embodiments of the present invention;

FIG. 3 is a cross-sectional view of a gas proportional valve according to some embodiments of the present invention;

FIG. 4 is a schematic structural diagram of a main valve body according to some embodiments of the present invention;

FIG. 5 is a schematic structural view of a segmented valve body according to some embodiments of the present invention;

FIG. 6 is a schematic view of an assembly of a segmented valve body and a segmented valve according to some embodiments of the utility model.

Reference numerals:

the gas proportional valve 100 is arranged on the gas inlet pipe,

the main valve body 1, the first air flow channel 11, the first pressure measuring nozzle 12, the segmented valve body 2, the second air flow channel 21, the third air flow channel 22, the support 23, the column 231, the clamping rib 232, the clamping notch 2321, the second pressure measuring nozzle 24, the segmented valve 3, the power line 31, the regulating valve 4, the valve seat 41, the first magnetic part 42, the second magnetic part 43, the elastic part 431, the mounting frame 44, the valve rod 45, the diaphragm 46, the fixing piece 47, the protecting cover 48, the nut 49, the valve core 5, the first sealing gasket 51, the sealing ring 52, the return spring 6, the stop valve 7, the air inlet pipe 8, the clamping hook 9 and the transition flow channel 10.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

A gas proportional valve 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6, the gas proportional valve 100 is applied to a gas water heater and is connected to a gas pipeline of the gas water heater, so as to control the flow rate of gas in the gas pipeline through the gas proportional valve 100, and the gas proportional valve 100 has functions of controlling the opening and closing of the gas pipeline, pressure regulation and pressure stabilization.

The gas proportional valve 100 of the present invention, by providing the second gas flow channel 21 and at least two third gas flow channels 22 on the segment valve body 2, after the gas enters the segment valve body 2 via the main valve body 1, by controlling the second air flow path 21 to be kept in constant communication with the first air flow path 11, the amount of air discharged from the at least two third air flow paths 22 is reduced, thereby reducing the minimum load of the gas water heater, and by the permutation and combination between the at least two third air flow passages 22 and the second air flow passage 21, i.e., selectively opening at least one of the at least two third air flow channels 22, facilitates the gas to flow out through different gas outlet channels after passing through the first air flow channel 11, thereby facilitating the ratio adjustment of the gas, thereby being convenient for enlarging the load adjusting range of the gas water heater and being beneficial to the improvement of the performance of the gas water heater.

As shown in fig. 1, a gas proportional valve 100 according to an embodiment of the present invention includes: a main valve body 1 and a segment valve body 2.

Specifically, the main valve body 1 is connected to the segmented valve body 2, a first air flow channel 11 is formed in the main valve body 1, a second air flow channel 21 and at least two third air flow channels 22 are formed in the segmented valve body 2, the second air flow channel 21 and the at least two third air flow channels 22 are both open towards the same direction, the main valve body 1 is provided with a regulating valve 4 and a valve core 5 located in the first air flow channel 11, the regulating valve 4 is used for driving the valve core 5 to move in the first air flow channel 11 to regulate the air output of the first air flow channel, wherein the second air flow channel 21 is set to be a normally open channel, that is, the second air flow channel 21 and the first air flow channel 11 are kept in a normally open state, and each third air flow channel 22 is set to be selectively communicated with the first air flow channel 11.

It can be understood that the second air flow channel 21 and the first air flow channel 11 are maintained in a normally connected state, that is, after the gas passes through the first air flow channel 11, a part of the gas can directly flow out through the second air flow channel 21, so as to reduce the minimum load of the gas water heater, and each third air flow channel 22 is controlled to be selectively connected with the first air flow channel 11, so that multiple flow modes of the gas can be realized through the arrangement and combination between at least two third air flow channels 22 and the second air flow channel 21.

Further, as shown in fig. 3, wherein the direction of the arrow in fig. 3 is the flowing direction of the fuel gas, the main valve body 1 is provided with a regulating valve 4 and a valve core 5 located in the first air flow channel 11, the regulating valve 4 is used for driving the valve core 5 to move in the first air flow channel 11 to regulate the air output of the first air flow channel 11, so as to regulate the air output ratio of the second air flow channel 21 to the third air flow channel 22.

The adjusting valve 4 may be a solenoid valve or a mechanical valve, and may also be other kinds of valves, which are not limited herein. Preferably, in the present invention, the regulating valve 4 is an electromagnetic valve, so as to reduce the difficulty in controlling the regulating valve 4, and the regulating valve 4 can drive the valve core 5 to move in the first gas flow channel 11 when being powered on, so as to regulate the amount of gas flowing out of the main first gas flow channel 11 and the flow rate of the gas.

From this, through setting up governing valve 4 to adjust the gas output of first airflow channel 11, and then can adjust the gas output ratio of second airflow channel 21 and third airflow channel 22, thereby the proportion of the gas of being convenient for is adjusted, and then is convenient for enlarge the control range of gas heater's load, does benefit to the promotion of gas heater's performance.

For example, the at least two third air flow channels 22 are controlled not to be communicated with the first air flow channel 11, that is, the at least two third air flow channels 22 are both disconnected from the first air flow channel 11, at this time, the gas directly flows out through the second air flow channel 21, or at least one third air flow channel 22 of the at least two third air flow channels 22 is controlled to be communicated with the first air flow channel 11, at this time, the gas flows out through the second air flow channel 21 and the at least one third air flow channel 22, or the at least two third air flow channels 22 are controlled to be both communicated with the first air flow channel 11, at this time, the gas flows out through the second air flow channel 21 and the at least two third air flow channels 22.

Therefore, the proportion of the gas can be adjusted by controlling the on-off state of each third air flow channel 22 and the first air flow channel 11 in the at least two third air flow channels 22, so that the gas can flow out through different air outlet channels after passing through the first air flow channel 11, the adjustment range of the load of the gas water heater is convenient to expand, and the performance of the gas water heater is improved.

According to the gas proportional valve 100 of the embodiment of the utility model, the second gas flow channel 21 and the at least two third gas flow channels 22 are arranged on the segmented valve body 2, the second gas flow channel 21 is normally communicated with the first gas flow channel 11, so that the gas output of the at least two third gas flow channels 22 is reduced, the minimum load of the gas water heater is reduced, and the at least two third gas flow channels 22 are selectively communicated with the first gas flow channel 11, so that the gas can flow out through different gas output channels after passing through the first gas flow channel 11 through the arrangement and combination between the second gas flow channel 21 and the at least two third gas flow channels 22, the adjustment range of the load of the gas water heater is further expanded, and the performance of the gas water heater is improved.

In some embodiments, as shown in fig. 2, a segment valve 3 is installed at each third air flow channel 22, and the segment valve 3 is used for controlling the air outlet state of the corresponding third air flow channel 22, and it can be understood that the segment valve 3 corresponds to the third air flow channel 22 one by one.

The segment valve 3 may be a solenoid valve or a mechanical valve, and may also be other kinds of valves, which are not limited herein. Preferably, in the present invention, the segment valve 3 is an electromagnetic valve, which is convenient to reduce the control difficulty of the segment valve 3, and the segment valve 3 can control the on-off state of the third airflow channel 22 when being powered on, so that the on-off state of the corresponding third airflow channel 22 is controlled by the segment valve 3.

Preferably, as shown in fig. 1, the regulating valves 4 are spaced apart from the segment valves 3 and/or the regulating valves 4 are perpendicular to the segment valves 3, so as to reduce the difficulty of arranging the regulating valves 4 and the segment valves 3 and facilitate the individual adjustment of the regulating valves 4 and the segment valves 3.

In some embodiments, as shown in fig. 1-3, the main valve body 1 is further provided with a shut-off valve 7, the shut-off valve 7 being used for selectively opening or closing the first gas flow passage 11, the shut-off valve 7 being spaced apart from the regulating valve 4. In other words, the stop valve 7 can function as a switch for the first gas flow passage 11, and the stop valve 7 can be a mechanical valve or an electromagnetic valve, preferably, in the present invention, the stop valve 7 is configured as an electromagnetic valve, that is, the stop valve 7 can control the on-off state of the first gas flow passage 11 when energized, so that it is convenient to prevent gas from entering the first gas flow passage 11 when gas is not needed to be used, and to open the first gas flow passage 11 through the stop valve 7 when gas is needed to be used.

Further, as shown in fig. 1, the stop valve 7 and the segment valve 3 are distributed in parallel, and both the stop valve 7 and the segment valve 3 are perpendicular to the regulating valve 4. Preferably, the sectional valve 3 is located above (as shown in fig. 1 above) the shut-off valve 7, the shut-off valve 7 being at a higher level than the regulating valve 4.

From this, all establish stop valve 7, segment valve 3 and governing valve 4 on the operating height of difference, be convenient for reduce its operation degree of difficulty, and be convenient for be connected alone between stop valve 7, segment valve 3 and the governing valve 4 and the power, do benefit to and avoid appearing mixed and disorderly problem between the pencil of stop valve 7's pencil, the power cord 31 of segment valve 3 and the pencil of governing valve 4.

In some embodiments, as shown in fig. 2 and 3, a return spring 6 is further disposed in the first air flow passage 11, the return spring 6 is elastically pressed between the segment valve body 2 and the valve core 5, and the return spring 6 is used for elastically pre-tensioning the valve core 5 in a direction away from the segment valve body 2. Therefore, the return spring 6 can elastically abut against the part between the segmented valve body 2 and the valve core 5, and when the valve core 5 keeps the initial position, the return spring 6 generates an elastic force towards the main valve body 1 to the valve core 5, so that the stability of the valve core 5 can be enhanced.

Further, as shown in fig. 6, be equipped with support 23 in the segmentation valve body 2, support 23 includes that column portion 231 and the encircleing distribute in a plurality of joint muscle 232 of the periphery wall of column portion 231, and the tip of joint muscle 232 is formed with joint notch 2321, and reset spring 6's tip joint is in the joint notch 2321 department of a plurality of joint muscle 232.

Specifically, as shown in fig. 6, a plurality of snap ribs 232 are spaced apart from each other on the outer circumferential wall of the column 231, wherein the number of snap ribs 232 is not limited herein. Wherein, just deviate from one side of barrel 231 at the tip of every joint muscle 232 and all be equipped with joint notch 2321 to the one end that reset spring 6 deviates from case 5 can overlap the one end of locating barrel 231, and reset spring 6 is in the spacing cooperation of a plurality of joint muscle 232's joint notch 2321 department and support 23, and then prevents that reset spring 6 and support 23 break away from, strengthens reset spring 6's stability.

From this, through set up support 23 in segmentation valve body 2 for reset spring 6 deviates from the one end joint of case 5 in joint recess 2321 department of joint muscle 232, thereby reinforcing reset spring 6's structural stability, and then reset spring 6 can elastically support and press between support 23 and case 5, and then when case 5 keeps initial position, reset spring 6 produces the elastic force towards main valve body 1 to case 5, thereby can strengthen the stability of case 5.

Meanwhile, when the valve core 5 moves in the first air flow channel 11 to adjust the air output ratio of the second air flow channel 21 to the third air flow channel 22, the elastic force of the return spring 6 can limit the maximum movement stroke of the valve core 5 on the valve core 5, so that the valve core 5 can move in the maximum movement stroke to realize the adjustment effect of the valve core 5.

As shown in fig. 3, a first gasket 51 is sleeved on an outer peripheral wall of one end of the valve core 5 away from the main valve body 1, and the first gasket 51 is suitable for being pressed between the valve core 5 and the main valve body 1 in a sealing manner. It can be understood that the first sealing gasket 51 is sleeved on the outer peripheral wall of one end of the valve core 5 away from the main valve body 1, and the radial outer side of the first sealing gasket 51 is abutted against the inner wall of the main valve body 1.

Therefore, the sealing performance between the valve core 5 and the main valve body 1 can be enhanced by arranging the first sealing gasket 51, so that when the valve core 5 keeps the initial position, the valve core 5 can be sealed with the inner wall of the main valve body 1 through the first sealing gasket 51, and the problem of gas leakage is prevented.

Further, as shown in fig. 2 and 3, the regulator valve 4 includes a valve seat 41, a first magnetic member 42, and a second magnetic member 43.

The valve seat 41 is connected with the main valve body 1, the first magnetic member 42 and the second magnetic member 43 are both installed in the valve seat 41, wherein the second magnetic member 43 is located on one side of the first magnetic member 42 close to the second magnetic member 43 and is movable relative to the valve seat 41, and the first magnetic member 42 is suitable for driving the second magnetic member 43 to push the valve element 5 to move when being electrified.

It can be understood that the end of the valve core 5 facing away from the first sealing gasket 51 is connected to the second magnetic member 43, and the first magnetic member 42 is disposed on the side of the second magnetic member 43 facing away from the valve core 5.

Preferably, the first magnetic member 42 is configured as an electromagnetic coil, the second magnetic member 43 is configured as a magnetic block, the electromagnetic coil is sleeved on the outer circumferential wall of the magnetic block, the electromagnetic coil can be electrically connected with an external power supply through a wire harness, and in the actual working process of the regulating valve 4, the electromagnetic coil can be connected with the external power supply through the wire harness first, so that the electromagnetic coil generates a magnetic field, the magnetic block moves towards the direction far away from the main valve body 1 under the action of the magnetic field, and then the magnetic block 5 is pushed to move towards the direction far away from the main valve body 1.

The strength of the magnetic field generated by the electromagnetic coil can be controlled by controlling the magnitude of the current, and the direction of the magnetic field generated by the electromagnetic coil can also be adjusted by controlling the direction of the current.

Further, when the magnetic force pushes the valve core 5 to move in a direction away from the main valve body 1, the valve core 5 drives the first sealing gasket 51 to separate from the inner wall of the main valve body 1, and when the acting force of the magnetic field is the same as the elastic force of the return spring 6, the valve core 5 stops moving, in other words, the position of the valve core 5 relative to the main valve body 1 can be changed by changing the acting force of the magnetic field, so that the ratio of the gas output of the second gas flow channel 21 to the gas output of the third gas flow channel 22 is adjusted, and further the proportion control of the gas output is realized.

Alternatively, the first magnetic member 42 may be configured as an electromagnet, that is, the first magnetic member 42 may generate magnetism when energized, facilitating generation or elimination of the magnetism of the first magnetic member 42, and the second magnetic member 43 may be configured as a magnet block, that is, the first magnetic member 42 is a semi-permanent magnet, the second magnetic member 43 is a permanent magnet, and when the first magnetic member 42 is energized to generate magnetism, the magnetism of one end of the second magnetic member 43 facing each other is opposite to that of one end of the first magnetic member 42. In the actual operation process of the regulating valve 4, the first magnetic member 42 may be first energized, so that the first magnetic member 42 generates magnetism, and thus the first magnetic member 42 generates repulsive magnetic force to the second magnetic member 43, that is, when the second magnetic member 43 receives the magnetic force of the first magnetic member 42, the second magnetic member 43 moves toward the direction away from the main valve body 1 under the action of the magnetic force, and then the second magnetic member 43 pushes the valve plug 5 to move toward the direction away from the main valve body 1.

Further, when the second magnetic member 43 pushes the valve element 5 to move in a direction away from the main valve body 1, the valve element 5 drives the first gasket 51 to separate from the inner wall of the main valve body 1, and when the magnetic force is the same as the elastic force of the return spring 6, the valve element 5 stops moving, in other words, the position of the valve element 5 relative to the main valve body 1 can be changed by changing the magnetic force, so that the ratio of the gas output of the second gas flow channel 21 to the gas output of the third gas flow channel 22 is adjusted, and further the proportion control of the gas output is realized.

In some embodiments, as shown in fig. 2, the regulating valve 4 further comprises: elastic member 431, mounting bracket 44, valve stem 45, diaphragm 46, fixing piece 47, protecting cover 48 and nut 49.

Preferably, the elastic member 431 is sleeved on the outer peripheral wall of the second magnetic member 43, that is, the elastic member 431 is disposed between the protecting sleeve 48 and the bottom wall of the valve seat 41, the mounting frame 44 is connected to the valve seat 41, and the valve rod 45 is connected to one end of the mounting frame 44 away from the valve seat 41 through a nut 49, wherein the valve rod 45 is in threaded connection with the mounting frame 44, and by adjusting the relative position of the valve rod 45 and the mounting frame 44, the initial position of the second magnetic member 43 can be adjusted, further, the fixing piece 47 can be disposed between the first sealing gasket 51 and the return spring 6, so as to play a role in fixing the return spring 6 and enhance the stability of the return spring 6, and the diaphragm 46 can be clamped between the segment valve body 2 and the main valve body 1, so as to enhance the sealing performance between the segment valve body 2 and the main valve body 1, thereby preventing the problem of gas leakage, and enhancing the safety of the gas proportional valve 100.

In some embodiments, as shown in fig. 6, the segmented valve body 2 is provided with hooks 9, the hooks 9 are located on the left side and/or the right side of the segmented valve body 2, the hooks 9 are provided with a fastening groove penetrating in the front-back direction, and the power cord 31 of the segmented valve 3 is adapted to penetrate through the fastening groove in the front-back direction.

It should be noted that, as shown in fig. 1 and fig. 6, each segment valve 3 is provided with a power line 31, and a sealing ring 52 is provided between each segment valve 3 and the corresponding third air flow channel 22, so as to enhance the sealing performance between the segment valve 3 and the corresponding third air flow channel 22 and prevent air leakage.

It can be understood that the hook 9 can be located on the left side of the segment valve 2, or the hook 9 can be located on the right side of the segment valve 2, or both the left side and the right side of the segment valve 2 can be provided with one hook 9, preferably, the hook 9 is configured in an arc structure, and the hook 9 is provided on the side wall of the segment valve 2, wherein the hook 9 is provided with a clamping groove, so that the power line 31 can be pulled from the rear to the front for wiring during actual assembly.

From this, when actual assembly, the place ahead is drawn to power cord 31 by the rear and is carried out the wiring, and at this moment, power cord 31 can be affiliated to on pothook 9, is convenient for reduce the wiring degree of difficulty of segmentation valve 2, and when need not to pass through segmentation valve 3 circular telegram, can be affiliated to on pothook 9 with power cord 31 to be convenient for prevent to appear the mixed and disorderly problem of pencil between power cord 31 of segmentation valve 3 and the pencil of other structures, and do benefit to taking in of power cord 31 of segmentation valve 3.

In some embodiments, the second pressure measuring nozzle 24 is disposed on the segment valve body 2, and the second pressure measuring nozzle 24 is used for detecting the pressure of the fuel gas in the segment valve body 2 in real time, so as to avoid the safety problem caused by the overhigh pressure of the fuel gas, and facilitate the enhancement of the safety of the segment valve body 2.

In some embodiments, as shown in fig. 5 and 6, there are two third air flow channels 22, and the second air flow channel 21 is located between the two third air flow channels 22.

Preferably, as shown in fig. 5, the second air flow channel 21 and the two third air flow channels 22 are both open to the same side of the segment valve body 2, the flow direction of the fuel gas is as shown by the arrow in fig. 5, and the aperture size of the outlet of the second air flow channel 21 is smaller than the aperture size of the outlets of the two third air flow channels 22, so as to facilitate the control of the air output of the second air flow channel 21 located in the two third air flow channels 22, and the installation of the segment valve 3 is facilitated by locating the second air flow channel 21 between the two third air flow channels 22.

Further, the second airflow channel 21 and the two third airflow channels 22 are distributed in parallel, and the extending direction of the second airflow channel 21 and the extending direction of the third airflow channel 22 are both perpendicular to the airflow direction at the inlet of the first airflow channel 11. It can be understood that the second airflow channel 21 and the two third airflow channels 22 are at the same horizontal height, so as to ensure that the air outlet directions of the second airflow channel 21 and the two third airflow channels 22 are the same, and further facilitate reducing the difficulty in arranging the air outlet pipes.

Meanwhile, the extending direction of the second air flow channel 21 and the extending direction of the two third air flow channels 22 are perpendicular to the air flow direction at the inlet of the first air flow channel 11, so that the air flow direction at the outlets of the second air flow channel 21 and the third air flow channels 22 can be changed conveniently, the flow rate of the gas in the first air flow channel 11 can be reduced, the difficulty in adjusting the gas in the first air flow channel 11 by the segmented valve body 2 can be further reduced, the structural size of the gas proportional valve 100 in the axial direction of the first air flow channel 11 can be reduced, and the miniaturization design of the gas proportional valve 100 can be realized.

In some embodiments, as shown in fig. 3, the first air flow path 11 includes a transition flow path 10, and the transition flow path 10 extends in a horizontal direction.

It will be appreciated that the transition flow channel 10 is located in the middle of the first air flow channel 11, wherein the extension direction of the transition flow channel 10 is parallel to the extension direction of the second air flow channel 21 and the third air flow channel 22.

From this, through setting up transition runner 10, be convenient for play the effect of buffering to the gas that gets into segmentation valve body 2 via first air current channel 11 to be convenient for slow down the flow rate of the gas in the first air current channel 11, and then reduce the regulation degree of difficulty of the gas in segmentation valve body 2 to first air current channel 11, and do benefit to and reduce the structure size of gas proportional valve 100 in the axial of first air current channel 11, realize the miniaturized design of gas proportional valve 100.

In some embodiments, as shown in fig. 4, the main valve body 1 is provided with an inlet pipe 8, the inlet pipe 8 is provided at an end of the main valve body 1 facing away from the segment valve body 2, the inlet pipe 8 has an inlet port communicating with the first air flow passage 11, and the inlet pipe 8 is provided with a pipe thread for communicating with an inlet pipe, preferably, the pipe thread has a specification of G1/2.

It can be understood that the internal perisporium of the one end of air inlet pipeline is equipped with the internal thread, and intake pipe 8 is integrated on main valve body 1, and when the installation of reality, intake pipe 8 directly extends to in the air inlet pipeline to realize the screw-thread fit between intake pipe 8 and the air inlet pipeline, be convenient for strengthen connection stability and connection leakproofness between the two.

From this, through directly integrating intake pipe 8 on main valve body 1, do benefit to the miniaturized design that realizes gas proportional valve 100 and intake pipe 8, and need not be connected main valve body 1 and intake pipe 8 alone to because of appearing connecting badly when avoiding main valve body 1 and intake pipe 8 to cause the gas to reveal, improved the security of gas proportional valve 100.

The air flow path in the gas proportional valve 100 is described below with reference to fig. 3 (the direction of the arrows in fig. 3 is the flow direction of the air flow):

after entering the air inlet pipe 8, the gas flows along the extending direction of the first gas flow channel 11, then the stop valve 7 is opened, so that the gas in the first gas flow channel 11 can enter the transition flow channel 10, and after entering the transition flow channel 10, the gas flows leftwards along the extending direction of the transition flow channel 10 to the left end of the transition flow channel 10, at this time, the transition flow channel 10 is communicated with the second gas flow channel 21 by controlling the movement of the regulating valve 4, so that the gas in the first gas flow channel 11 can flow to the second gas flow channel 21 along the axial direction of the valve core 5.

At this time, a part of the gas in the first gas flow channel 11 directly flows out through the second gas flow channel 21, and at the same time, the segment valve 3 is controlled to open or close the corresponding third gas flow channel 22 according to the actual gas demand, so that another part of the gas in the first gas flow channel 11 flows out through the open third gas flow channel 22.

Further, as shown in fig. 4, a first pressure measuring nozzle 12 is arranged on the upper portion of the pipe thread, and the first pressure measuring nozzle 12 is used for detecting the gas pressure in the gas inlet pipe 8, so that the safety problem caused by the overhigh pressure of the gas is avoided, and the safety of the gas inlet pipe 8 is favorably enhanced.

The utility model also provides a gas water heater.

The gas water heater according to the embodiment of the utility model comprises the gas proportional valve 100 of any one of the embodiments.

Specifically, an air inlet pipe 8 is integrated at the lower end of the main valve body 1, the air inlet pipe 8 is connected with an air inlet pipeline, the upper end of the main valve body 1 is connected with the sectional valve body 2 through a connecting structure, the sectional valve body 2 is connected with an air distributing rod (not shown in the figure), and a nozzle is arranged on the air distributing rod.

Wherein, integrated second airflow channel 21 and two third airflow channel 22 on the segmentation valve body 2, second airflow channel 21 is normally open the passageway, and second airflow channel 21 is the passageway of uncontrolled valve control promptly, can guarantee that the gas lasts the outflow, and every third airflow channel 22 all is provided with corresponding segmentation valve 3, and every third airflow channel 22 all can be controlled alone through the segmentation valve 3 that corresponds promptly.

According to the gas water heater of the embodiment of the utility model, the gas proportional valve 100 is provided with the second gas flow channel 21 and the at least two third gas flow channels 22 on the segmented valve body 2, the second gas flow channel 21 is normally communicated with the first gas flow channel 11, so that the gas output of the at least two third gas flow channels 22 is conveniently reduced, and the minimum load of the gas water heater is reduced, and the at least two third gas flow channels 22 are selectively communicated with the first gas flow channel 11, so that the gas can flow out through different gas output channels after passing through the first gas flow channel 11 through the arrangement and combination between the second gas flow channel 21 and the at least two third gas flow channels 22, thereby facilitating the expansion of the load adjustment range of the gas water heater and facilitating the improvement of the performance of the gas water heater.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. A gas proportioning valve comprising:

the main valve body is internally provided with a first air flow channel;

the valve comprises a segmented valve body, a first air flow channel and at least two second air flow channels, wherein the segmented valve body is internally provided with the second air flow channel and the at least two third air flow channels;

the main valve body is provided with a regulating valve and a valve core positioned in the first air flow channel, and the regulating valve is used for driving the valve core to move in the first air flow channel so as to regulate the air output of the first air flow channel; wherein the content of the first and second substances,

the second air flow channel is a normally open channel, and each third air flow channel is selectively communicated with the first air flow channel.

2. The gas proportioning valve of claim 1 wherein a segment valve is installed at each third gas flow channel for controlling the gas outlet state of the corresponding third gas flow channel.

3. The gas proportioning valve of claim 2 wherein the regulating valve is spaced apart from the segment valve and/or the regulating valve is perpendicular to the segment valve.

4. The gas proportioning valve of claim 3 wherein the main valve body is further provided with a shutoff valve for selectively opening or closing the first gas flow passage, the shutoff valve being spaced apart from the regulating valve.

5. The gas proportioning valve of claim 4 wherein the stop valve is parallel to the segment valve and perpendicular to the regulating valve.

6. The gas proportioning valve of claim 4 wherein the staging valve is located above the shutoff valve, the shutoff valve being at a higher elevation than the regulating valve.

7. The gas proportional valve according to claim 1, wherein a return spring is further disposed in the first gas flow passage, the return spring elastically presses between the segment valve body and the valve core, and the return spring elastically pre-tensions the valve core in a direction away from the segment valve body.

8. The gas proportional valve of claim 7, wherein a support is arranged in the segmented valve body, the support comprises a cylindrical body and a plurality of clamping ribs distributed around the outer peripheral wall of the cylindrical body, a clamping notch is formed in the end of each clamping rib, and the end of the reset spring is clamped in the clamping notches of the clamping ribs.

9. The gas proportional valve according to claim 1, wherein a first sealing gasket is sleeved on the outer peripheral wall of the valve core, and the first sealing gasket is suitable for being pressed between the valve core and the main valve body in a sealing mode.

10. The gas proportional valve according to claim 1, wherein the regulating valve comprises a valve seat, a first magnetic member and a second magnetic member, the valve seat is connected to the main valve body, the first magnetic member and the second magnetic member are both mounted in the valve seat, the second magnetic member is located on one side of the first magnetic member close to the second magnetic member and is movable relative to the valve seat, and the first magnetic member is adapted to drive the second magnetic member to push the valve core to move when being powered on.

11. The gas proportional valve of claim 2, wherein the segment valve body is provided with a hook, the hook is located at the left side and/or the right side of the segment valve body, the hook is provided with a clamping groove running through along the front-back direction, and a power line of the segment valve is suitable for penetrating into the clamping groove along the front-back direction.

12. The gas proportioning valve of claim 1 wherein there are two of said third gas flow passages and said second gas flow passage is located between two of said third gas flow passages.

13. The gas proportioning valve of claim 1 wherein the second gas flow channel is parallel to the two third gas flow channels, and the extension direction of the second gas flow channel and the extension direction of the third gas flow channel are both perpendicular to the gas flow direction at the inlet of the first gas flow channel.

14. The gas proportioning valve of claim 1 wherein the first gas flow passage includes a transition flow passage, the transition flow passage extending in a horizontal direction.

15. The gas proportional valve of claim 1, wherein the main valve body is provided with an inlet pipe having an inlet port communicating with the first gas flow passage, and an end portion of the inlet pipe is provided with a pipe thread for communicating with an inlet pipe.

16. A gas water heater comprising a gas proportioning valve according to any of claims 1 to 15.

Images