CN211290560U

CN211290560U - Jet pipe

Info

Publication number: CN211290560U
Application number: CN201921351120.0U
Authority: CN
Inventors: 卢宇凡; 潘泽林; 潘同基
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-08-18
Anticipated expiration: 2029-08-19

Abstract

The utility model provides a jet pipe. The utility model provides an air-jet pipe, wherein, includes sprue and two at least runners, the runner along the axial of sprue sets gradually and with the sprue intercommunication, be equipped with on the sprue make at least part runner can selectively with the flow distribution control device of sprue intercommunication, the one end of sprue is equipped with the air inlet, all be equipped with the fumarole on each runner. The utility model discloses simple structure, convenient to use uses with the combustor cooperation and can realize the segmentation combination burning, can effectively increase the load regulation ratio of combustor, promotes user experience's travelling comfort.

Description

Jet pipe

Technical Field

The utility model relates to a gas water heater's air feed subassembly technical field, more specifically relates to a jet-propelled pipe.

Background

People have increasingly strengthened awareness of protecting the environment, the combustion of a gas water heater inevitably generates waste gas, and harmful gases in the waste gas mainly comprise CO and NO_X. Follower linkCan reduce the emission requirement, more and more water heater manufacturers use water-cooled burners so as to reduce CO and NO_XBut the load regulation ratio is not large due to the structural defects of the water-cooled burner, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome current gas heater's water-cooled combustor's load regulation ratio not big, the relatively poor defect of user experience nature provides a jet-propelled pipe. The utility model discloses simple structure, convenient to use uses with the water-cooling combustor cooperation and can realize the segmentation combination burning, can effectively increase the load regulation ratio of water-cooling combustor, promotes user experience's travelling comfort.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an air-jet pipe, wherein, includes sprue and two at least runners, the runner along the axial of sprue sets gradually and with the sprue intercommunication, be equipped with on the sprue make at least part runner can selectively with the flow distribution control device of sprue intercommunication, the one end of sprue is equipped with the air inlet, all be equipped with the fumarole on each runner. Therefore, at least part of the branch runners can be controlled to be selectively communicated with the main runner through the flow dividing control device, that is, all the branch runners can be completely communicated with the main runner, or a part of the branch runners can be communicated with the main runner, and the number of the branch runners communicated with the main runner can be selected according to requirements; the sectional air injection of the whole air injection pipe can be realized, the sectional combined combustion can be realized by matching with the combustor, the load regulation ratio of the combustion assembly of the water heater can be effectively increased, and the comfort of user experience is improved.

The utility model discloses in, the reposition of redundant personnel controlling means includes two kinds of different forms, and first form is: each branch runner with the sprue direct intercommunication, the reposition of redundant personnel controlling means is including establishing the segmentation structure on the sprue inner wall between two adjacent branch runners to and one end insert establish inside the sprue and with the segmentation structure cooperatees makes the sprue of segmentation structure both sides can the selective intercommunication or the segmentation device closed. When the gas in the main runner flows in the direction, the subsection structure on the inner wall of the main runner between two adjacent branch runners is matched with the subsection device to close the main runners on two sides of the subsection structure, and the subsection structure between the two adjacent branch runners and the gas inlet is in a separated state from the corresponding subsection device, the gas inlet is communicated with the main runner, so that the gas always exists in the main runner between the two adjacent branch runners and the gas inlet, at the moment, in the two adjacent branch runners, the gas in the main runner can enter the branch runners close to the gas inlet, and the main runners on two sides of the subsection structure are closed due to the matching of the subsection structure between the two adjacent branch runners and the subsection device, so that the gas in the main runner cannot enter the other branch runner in the two adjacent branch runners.

Further, the segmenting device is including establishing conversion seat, one end on the port of sprue one end are inserted and are established the inside other end of sprue passes the conversion seat stretches out the outside switching shaft of sprue, the sectional structure is for establishing first annular flange on the sprue inner wall, be equipped with on the circumference lateral wall of the inside switching shaft of sprue can with the second annular flange that the sectional structure offseted tight fit, be equipped with first sealing washer on the second annular flange, first sealing washer can guarantee that first annular flange has good leakproofness with second annular flange when offsetting the tight fit. The conversion seat and the conversion shaft are provided with control devices for controlling the sequential abutting tight fit or separation of each component section structure and the second annular flange along the flowing direction of the fuel gas in the main runner, and the air inlet is arranged at one end of the main runner, which is provided with the conversion seat. The abutting fit or separation of each component of the segmental structure and the second annular flange can be realized by controlling the movement of the conversion shaft in the main runner through the control device, so that the aim of sequentially opening and closing each branch runner along the flowing direction of gas in the main runner is further realized, and the aim of segmental combustion of the gas ejector is finally realized.

Furthermore, the position of the segmented structure on the main flow passage and the position of the second annular flange on the switching shaft meet the requirement that when a certain group of segmented structures and the second annular flange are just separated in the direction of gas flow in the main flow passage, the segmented structures and the second annular flange are separated from the segmented structures and the second annular flange between the gas inlet and the next group of segmented structures and the second annular flange adjacent to the segmented structures and the second annular flange are just abutted and matched. That is, when a set of the segmented structure and the second annular flange are just separated, the set of the segmented structure and the second annular flange between the set of the segmented structure and the second annular flange and the gas inlet are separated from each other in the flowing direction of the gas in the main flow passage, so that the gas in the main flow passage can be delivered to the set of the segmented structure and the second annular flange; meanwhile, the next group of subsection structures adjacent to the subsection structures and the second annular flange are just abutted and matched, so that the condition that the fuel gas in the main flow channel is conveyed to the branch flow channels on the two sides of the subsection structures and the second annular flange and then cannot be conveyed forwards continuously is guaranteed. By following the above process, starting from the first group of segment structures and the second annular flange close to the air inlet and so on, the aim of sequentially opening and closing the branch flow passages of the gas injection pipe along the flowing direction of the gas inside the main flow passage can be achieved, and finally the segmented combustion of the gas injection pipe is achieved.

Furthermore, the control device comprises gear clamping grooves which are arranged on one side of the conversion seat close to the outer portion of the main runner and correspond to the branch runners in number, clamping pins which are arranged on the end, extending out of the main runner, of the conversion shaft and matched with the gear clamping grooves, and springs which are sleeved on the conversion shaft in the main runner, one end of each spring is abutted against the conversion seat, a baffle is arranged on the conversion shaft corresponding to the other end of each spring, and the other end of each spring is abutted against the baffle. When the bayonet lock is clamped in the first gear clamping groove, the first group of segmented structures close to the air inlet are abutted and tightly matched with the second annular flange, and at the moment, the gas in the main runner can only enter the first branch runner close to the air inlet; when the clamping pin is clamped in the second gear clamping groove, the first group of segmented structures close to the air inlet and the second annular flange are just separated, the second group of segmented structures and the second annular flange are just in abutting fit, and at the moment, gas in the main runner can enter the first branch runner and the second branch runner close to the air inlet; when the clamping pin is clamped in the third gear clamping groove, the first group of segmented structures close to the air inlet are separated from the second annular flange, the second group of segmented structures are just separated from the second annular flange, and the third group of segmented structures are just abutted and matched with the second annular flange, so that the gas in the main runner can enter the first branch runner, the second branch runner and the third branch runner close to the air inlet; by analogy, the sectional combustion of the gas injection pipe can be finally realized.

Furthermore, a first guide surface and a second guide surface which are convenient for the mutual abutting fit or separation of the segmented structure and the second annular flange are respectively arranged on the segmented structure and the second annular flange.

Furthermore, the sprue with the one end that the conversion seat is connected is equipped with the ring flange, the conversion seat pass through the connecting piece with ring flange fixed connection, the connecting piece is the screw usually to be selected, the sprue with be equipped with first step on the one end port inner wall that the conversion seat is connected, be equipped with the second sealing washer on the first step, the conversion seat will the second sealing washer compresses tightly on the first step. The second sealing washer can guarantee the leakproofness that conversion seat and sprue are connected, avoids leaking gas. The first step has another function, when the gas ejector pipe does not need to be provided with a sectional combustion function, the conversion seat and the conversion shaft can be directly removed, and then the sealing cover is arranged on the first step, so that the gas ejector pipe is cancelled with the sectional function, and is changed into a common gas ejector pipe without influencing the use. In the actual production process, a manufacturer can determine whether to install the conversion seat and the conversion shaft according to the requirement.

Furthermore, a stepped hole surrounding the conversion shaft is arranged on one side, close to the interior of the main runner, of the conversion seat, a third sealing ring surrounding the conversion shaft is arranged on a step, far away from the interior of the main runner, of the stepped hole, a pressing ring surrounding the conversion shaft is arranged on a step, close to the interior of the main runner, of the stepped hole, and the third sealing ring is pressed tightly by the pressing ring. The cooperation of clamping ring and third sealing washer can guarantee the leakproofness that conversion seat and conversion hub connection avoid gas leakage.

The utility model discloses in, shunt control device's second kind form is: the flow distribution control device is an electromagnetic valve, the electromagnetic valve is arranged at the joint of each branch flow channel and the main flow channel on the main flow channel, and each branch flow channel is communicated with the main flow channel through the electromagnetic valve. Like this, it has the gas to lead to in the sprue always, controls different branch runners through the solenoid valve and communicates in the sprue, also can realize the segmentation burning of jet-propelled pipe, compares with first form, and solenoid valve control is more nimble, can select arbitrary one or many branch runners and sprue intercommunication, and under the first form, can only make branch runner and sprue intercommunication one by one in proper order along the inside gas flow direction of sprue.

Furthermore, second steps are arranged on the inner wall of the port at the other end of the main runner and the inner walls of the ports at the two ends of each branch runner, and sealing covers are arranged on the second steps. Therefore, the production process of the main runner and the branch runners is simple, and the end heads have good sealing performance.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model arranges the shunt control device such as the combination of the electromagnetic valve or the segmented structure and the segmenting device on the main runner, thus controlling at least part of branch runners to be selectively communicated with the main runner through the shunt control device, and the number of the branch runners communicated with the main runner can be selected according to the requirement; the sectional air injection of the whole air injection pipe can be realized, the sectional combined combustion can be realized by matching with the combustor, the load regulation ratio of the combustion assembly of the water heater can be effectively increased, and the comfort of user experience is improved.

The utility model discloses an air ejector pipe adopts the simplified design, simple structure, simple to operate, and simultaneous processing is convenient.

The utility model discloses an air-jet pipe can take the segmentation function also can not take the segmentation function, and in the actual production process, the producer can be as required, decides whether to take the segmentation function, enables the part and obtains the biggest universalization.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a longitudinal sectional view of a main flow passage in embodiment 1 of the present invention.

Fig. 3 is a longitudinal sectional view of a switch seat in embodiment 1 of the present invention.

Fig. 4 is a longitudinal sectional view of the whole structure when the segmented structure and the second flange are abutted and matched in embodiment 1 of the present invention.

Fig. 5 is a partially enlarged view of a portion a in fig. 4.

Fig. 6 is a partially enlarged view at B in fig. 4.

Fig. 7 is a partially enlarged view at C in fig. 4.

Fig. 8 is a longitudinal sectional view of the overall structure when the segmented structure is separated from the second flange in embodiment 1 of the present invention.

Fig. 9 is a longitudinal sectional view of the whole structure when the first group of segment structures and the second flange are abutted and matched in embodiment 2 of the present invention.

Fig. 10 is a longitudinal sectional view of the whole structure when the second group of segment structures and the second flange are abutted and matched in embodiment 2 of the present invention.

Fig. 11 is a longitudinal sectional view of the whole structure when the first group of segment structures and the second flange are abutted and matched in embodiment 3 of the present invention.

Fig. 12 is a longitudinal sectional view of the overall structure when the third group of segment structures and the second flange are abutted and matched in embodiment 3 of the present invention.

In the figure, 1-main runner, 2-branch runner, 3-air inlet, 4-gas orifice, 5-segment structure, 6-conversion seat, 7-conversion shaft, 8-second annular flange, 9-first sealing ring, 10-gear clamping groove, 11-clamping pin, 12-spring, 13-baffle, 14-flange, 15-connecting piece, 16-first step, 17-second sealing ring, 18-step hole, 19-third sealing ring, 20-pressing ring, 21-second step, 22-sealing cover, 51-first guide surface, 81-second guide surface.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1

As shown in fig. 1 and 2, an air ejector includes a main flow channel 1 and two branch flow channels 2, the branch flow channels 2 are sequentially arranged along an axial direction of the main flow channel 1 and are communicated with the main flow channel 1, a flow distribution control device is arranged on the main flow channel 1, the branch flow channels 2 can be selectively communicated with the main flow channel 1, an air inlet 3 is arranged at one end of the main flow channel 1, and each branch flow channel 2 is provided with an air ejecting hole 4. Thus, at least part of the branch runners 2 can be controlled to be selectively communicated with the main runner 1 through the flow dividing control device, that is, all the branch runners 2 can be completely communicated with the main runner 1, or a part of the branch runners 2 can be communicated with the main runner 1, and the number of the branch runners 2 communicated with the main runner 1 can be selected according to requirements; the sectional air injection of the whole air injection pipe can be realized, the sectional combined combustion can be realized by matching with the combustor, the load regulation ratio of the combustion assembly of the water heater can be effectively increased, and the comfort of user experience is improved.

As shown in fig. 4 to 6, each of the branch runners 2 is directly communicated with the main runner 1, and the flow dividing control means includes a segment structure 5 provided on an inner wall of the main runner 1 between two of the branch runners 2, and a segment means having one end inserted inside the main runner 1 and cooperating with the segment structure 5 so that the main runner 1 on both sides of the segment structure 5 can be selectively communicated or closed. When the subsection structure 5 on the inner wall of the main runner 1 between the two branch runners 2 is matched with the subsection device to close the main runners 1 on two sides of the subsection structure 5, the gas inlet 3 is communicated with the main runner 1, so that gas always exists in the main runner 1 between the two branch runners 2 and the gas inlet 3, at the moment, in the two branch runners 2, the gas in the main runner 1 can enter the branch runners 2 close to one side of the gas inlet 3, and the main runners 1 on two sides of the subsection structure 5 are closed due to the matching of the subsection structure 5 in the middle of the two branch runners 2 and the subsection device, so that the gas in the main runner 1 can not enter the branch runners 2 far away from one side of the gas inlet 3.

As shown in fig. 4 to 6, the segmenting device includes a converting seat 6 disposed at one end port of the main flow channel 1, a converting shaft 7 having one end inserted into the main flow channel 1 and the other end penetrating through the converting seat 6 and extending out of the main flow channel 1, the segmenting structure 5 is a first annular flange disposed on the inner wall of the main flow channel 1, a second annular flange 8 capable of being abutted and tightly fitted with the segmenting structure 5 is disposed on a circumferential side wall of the converting shaft 7 inside the main flow channel 1, a first sealing ring 9 is disposed on the second annular flange 8, and the first sealing ring 9 can ensure that the first annular flange and the second annular flange 8 have good sealing performance when being abutted and tightly fitted. The conversion seat 6 and the conversion shaft 7 are provided with control devices for controlling the subsection structure 5 to be abutted against and tightly matched or separated from the second annular flange, and the air inlet 3 is arranged at one end close to the conversion seat 6. The abutting fit or separation of the segmented structure 5 and the second annular flange 8 can be realized by controlling the movement of the switching shaft 7 in the main runner 1, so that the aim of opening and closing each branch runner 2 along the flowing direction of the gas in the main runner 1 is further realized, and the aim of segmented combustion of the gas ejector pipe is finally realized.

As shown in fig. 1, 3 to 5, the control device includes gear engaging grooves 10 corresponding to the number of the branch flow passages 2 and disposed on one side of the converting base 6 near the outer portion of the main flow passage 1, engaging pins 11 disposed on the end of the converting shaft 7 extending out of the main flow passage 1 and engaging with the gear engaging grooves 10, and springs 12 sleeved on the converting shaft 7 inside the main flow passage 1, wherein one end of each spring 12 abuts against the converting base 6, and the other end of each spring 12 abuts against a baffle 13 disposed on the converting shaft 7 far from one end of the converting base 6. When the bayonet 11 is clamped in the first gear clamping groove 10, the segmented structure 5 and the second annular flange 8 are abutted and tightly matched, at the moment, the gas in the main runner 1 can only enter the first branch runner 2 close to the gas inlet 3, and the gas can only be sprayed out of the branch runner 2 close to the gas inlet 3; when the clamping pin 11 is clamped in the second gear clamping groove 10, the segmented structure 5 and the second annular flange 8 are just separated, and at this time, the gas in the main runner 1 can enter all the branch runners 2, as shown in fig. 8; therefore, the matching of the clamping grooves 10 with the clamping pins 11 at different gears can control whether the gas ejector pipe is combusted in a segmented mode.

As shown in fig. 6, the segmented structure 5 and the second annular flange 8 are respectively provided with a first guide surface 51 and a second guide surface 81 for facilitating the abutting engagement or disengagement of the segmented structure 5 and the second annular flange 8.

As shown in fig. 1, 2, 4 and 5, a flange 14 is disposed at one end of the main flow channel 1 connected to the switching seat 6, the switching seat 6 is fixedly connected to the flange 14 through a connector 15, the connector 15 is usually selected from a screw, a first step 16 is disposed on an inner wall of a port at one end of the main flow channel 1 connected to the switching seat 6, a second sealing ring 17 is disposed on the first step 16, and the switching seat 6 presses the second sealing ring 17 against the first step 16. The second sealing ring 17 can ensure the sealing property of the connection between the conversion seat 6 and the main flow passage 1, and air leakage is avoided. The first step 16 has another function, when the gas ejector pipe does not need to be provided with the staged combustion function, the conversion seat 6 and the conversion shaft 7 can be directly removed, and then the sealing cover 22 is arranged on the first step 16, so that the gas ejector pipe is changed into a common gas ejector pipe without influencing the use because the staged function is eliminated. In the actual production process, a manufacturer can determine whether to install the conversion seat 6 and the conversion shaft 7 according to requirements.

As shown in fig. 3 to 5, a stepped hole 18 surrounding the switching shaft 7 is formed in one side of the switching base 6 close to the interior of the main runner 1, a third sealing ring 19 surrounding the switching shaft 7 is arranged on a step of the stepped hole 18 far away from the interior of the main runner 1, a pressing ring 20 surrounding the switching shaft 7 is arranged on a step of the stepped hole 18 close to the interior of the main runner 1, and the pressing ring 20 presses the third sealing ring 19. The cooperation of the pressing ring 20 and the third sealing ring 19 can ensure the sealing performance of the connection between the conversion seat 6 and the conversion shaft 7, and avoid air leakage.

As shown in fig. 4 and 7, the inner wall of the other end port of the main flow passage 1 and the inner walls of the two end ports of each branch flow passage 2 are provided with second steps 21, and the second steps 21 are provided with sealing covers 22. Therefore, the production process of the main runner 1 and the branch runners 2 is simple, and the end heads have good sealing performance.

Example 2

This embodiment is similar to embodiment 1 except that the gas lance includes a main flow passage 1 and three branch flow passages 2 as shown in fig. 9 and 10.

As shown in fig. 9 and 10, the flow dividing control means includes a sectioning structure 5 provided on an inner wall of the main flow passage 1 between adjacent two branch flow passages 2, and a sectioning device having one end inserted inside the main flow passage 1 and cooperating with the sectioning structure 5 so that the main flow passage 1 at both sides of the sectioning structure 5 can be selectively connected or closed. The working principle of the segmented structure 5 and the segmenting means is the same as that of embodiment 1.

As shown in fig. 9 and 10, the number of the gear slots 10 on the side of the transition seat 6 close to the outside of the main runner 1 is three, when the bayonet 11 is blocked in the first gear slot 10, the first group of segmented structures 5 close to the air inlet 3 and the second annular flange 8 are in tight fit with each other, and at this time, the gas in the main runner 1 can only enter the first branch runner 2 close to the air inlet 3; when the bayonet 11 is clamped in the second gear clamping groove 10, the first group of segmented structures 5 close to the air inlet 3 are just separated from the second annular flange 8, the second group of segmented structures 5 are just abutted and matched with the second annular flange 8, and at the moment, the gas in the main runner 1 sequentially enters the first branch runner 2 and the second branch runner 2 close to the air inlet 3 along the gas flowing direction; when the bayonet 11 is clamped in the third gear clamping groove 10, the first group of segmented structures 5 close to the air inlet 3 are separated from the second annular flange 8, the second group of segmented structures 5 are just separated from the second annular flange 8, and at the moment, the fuel gas in the main runner 1 can enter the three branch runners 2 at the same time; through the matching of the clamping grooves 10 with different gears and the clamping pins 11, the sectional combustion of the gas ejector pipe can be finally realized.

Other structures and operation principles of this embodiment are the same as those of embodiment 1.

Example 3

This embodiment is similar to embodiment 1 except that the gas lance includes a main flow channel 1 and four branch flow channels 2 as shown in fig. 11 and 12.

As shown in fig. 11 and 12, the flow dividing control means includes a segment structure 5 provided on an inner wall of the main flow passage 1 between two adjacent branch flow passages 2, and a segment means having one end inserted inside the main flow passage 1 and cooperating with the segment structure 5 so that the main flow passage 1 on both sides of the segment structure 5 can be selectively communicated or closed. The working principle of the segmented structure 5 and the segmenting means is the same as that of embodiment 1.

As shown in fig. 11 and 12, the position of the segmented structure 5 on the main flow passage 1 and the position of the second annular flange 8 on the switching shaft 7 are such that when the second set of segmented structures 5 and the second annular flange 8 close to the gas inlet 3 are just separated in the direction of the gas flow inside the main flow passage 1, the first set of segmented structures 5 and the second annular flange 8 between the set of segmented structures 5 and the second annular flange 8 and the gas inlet 3 are in a separated state, and the third set of segmented structures 5 and the second annular flange 8 adjacent to the first set of segmented structures 5 and the second annular flange 8 are just abutted.

As shown in fig. 11 and 12, the number of the gear slots 10 on the side of the transition seat 6 close to the outside of the main runner 1 is four, when the bayonet 11 is blocked in the first gear slot 10, the first group of the segmented structures 5 close to the air inlet 3 and the second annular flange 8 are in tight fit with each other, and at this time, the gas in the main runner 1 can only enter the first branch runner 2 close to the air inlet 3; when the bayonet 11 is clamped in the second gear clamping groove 10, the first group of segmented structures 5 close to the air inlet 3 are just separated from the second annular flange 8, the second group of segmented structures 5 are just abutted and matched with the second annular flange 8, and at the moment, the gas in the main runner 1 sequentially enters the first branch runner 2 and the second branch runner 2 close to the air inlet 3 along the gas flowing direction; when the bayonet 11 is clamped in the third gear clamping groove 10, the first group of segmented structures 5 close to the air inlet 3 are separated from the second annular flange 8, the second group of segmented structures 5 are just separated from the second annular flange 8, the third group of segmented structures 5 are just abutted and matched with the second annular flange 8, and at the moment, the gas in the main runner 1 sequentially enters the first, second and third branch runners 2 close to the air inlet 3 along the gas flowing direction; when the bayonet 11 is clamped in the fourth gear clamping groove 10, the first group and the second group of the segmented structures 5 close to the air inlet 3 are separated from the second annular flange 8, the third group of the segmented structures 5 is just separated from the second annular flange 8, and at the moment, the fuel gas in the main runner 1 can enter the four branch runners 2 simultaneously; through the matching of the clamping grooves 10 with different gears and the clamping pins 11, the sectional combustion of the gas ejector pipe can be finally realized.

Example 4

The present embodiment is similar to embodiment 1, and the difference is that the flow dividing control device of the present embodiment is in the second form, that is, the flow dividing control device is an electromagnetic valve, the electromagnetic valve is disposed at a junction of each branch flow channel 2 and the main flow channel 1 on the main flow channel 1, and each branch flow channel 2 is communicated with the main flow channel 1 through the electromagnetic valve. Like this, it has the gas to lead to in the sprue 1 always, through different branch runner 2 of solenoid valve control and sprue 1 intercommunication, also can realize the segmentation burning of jet-propelled pipe, compares with first form, and solenoid valve control is more nimble, can select arbitrary one or many branch runner 2 and sprue 1 intercommunication, and under the first form, can only make branch runner 2 and sprue 1 intercommunication one by one in proper order along the inside gas flow direction of sprue 1.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an air nozzle, its characterized in that includes sprue (1) and two at least runners (2), runner (2) are along the axial of sprue (1) sets gradually and with sprue (1) intercommunication, be equipped with on sprue (1) make runner (2) with the reposition of redundant personnel controlling means of sprue (1) part intercommunication, the one end of sprue (1) is equipped with air inlet (3), all be equipped with fumarole (4) on runner (2).

2. A gas lance as claimed in claim 1, wherein the main flow channel (1) extends through the branch flow channels (2), and the flow dividing control device comprises a segment structure (5) disposed in the main flow channel (1) between two adjacent branch flow channels (2), and a segment device having one end inserted in the main flow channel (1) and cooperating with the segment structure (5) to enable the main flow channel (1) on both sides of the segment structure (5) to be selectively connected or closed.

3. A gas lance according to claim 2, further comprising a sealing cover (22), wherein the sealing cover (22) is mounted on the end of the main flow passage (1) at the gas inlet (3), and the gas flow entering from the gas inlet (3) flows into the branch flow passage (2) close to the gas inlet (3) through the main flow passage (1).

4. The gas lance according to claim 2, wherein the segmenting device comprises a converting seat (6) provided at an end port of the main flow passage (1), and a converting shaft (7) penetrating through the converting seat (6) and extending into the main flow passage (1), the segmenting structure (5) is a first annular flange provided on an inner wall of the main flow passage (1), a second annular flange (8) capable of abutting against the segmenting structure (5) and being tightly matched is provided on a circumferential side wall of the converting shaft (7) inside the main flow passage (1), a first sealing ring (9) is provided on the second annular flange (8), and a control device for controlling each of the segmenting structure (5) and the second annular flange (8) to sequentially abut against and be tightly matched or separated along a gas flowing direction inside the main flow passage (1) is provided on the converting seat (6) and the converting shaft (7), the air inlet (3) is arranged at one end close to the conversion seat (6).

5. The gas lance according to claim 4, wherein the control device comprises gear slots (10) which are provided at one side of the conversion seat (6) close to the outside of the main runner (1) and correspond to the branch runners (2) in number, bayonet locks (11) which are provided at the end of the conversion shaft (7) extending out of the main runner (1) and are matched with the gear slots (10), and springs (12) which are sleeved on the conversion shaft (7) inside the main runner (1), one end of each spring (12) is abutted against the conversion seat (6), a baffle (13) is provided at a position of the conversion shaft (7) corresponding to the other end of the spring (12), and the other end of each spring (12) is abutted against the baffle (13).

6. A gas lance according to claim 4, wherein the segmented structure (5) and the second annular flange (8) are provided with a first guide surface (51) and a second guide surface (81), respectively, for facilitating the abutting engagement or disengagement of the segmented structure (5) and the second annular flange (8) with each other.

7. The gas lance according to claim 4, wherein a flange (14) is arranged at one end of the main flow passage (1) connected with the conversion seat (6), the conversion seat (6) is fixedly connected with the flange (14) through a connecting piece (15), a first step (16) is arranged on the inner wall of a port at one end of the main flow passage (1) connected with the conversion seat (6), a second sealing ring (17) is arranged on the first step (16), and the conversion seat (6) compresses the second sealing ring (17) on the first step (16).

8. A gas lance according to claim 4, wherein a stepped hole (18) surrounding the switching shaft (7) is provided at a side of the switching seat (6) close to the interior of the main flow channel (1), a third sealing ring (19) surrounding the switching shaft (7) is provided on a step of the stepped hole (18) far away from the interior of the main flow channel (1), a pressing ring (20) surrounding the switching shaft (7) is provided on a step of the stepped hole (18) close to the interior of the main flow channel (1), and the pressing ring (20) presses the third sealing ring (19).

9. The gas lance according to claim 1, wherein the flow dividing control device is an electromagnetic valve, the electromagnetic valve is arranged at the junction of the main flow passage (1) and the upper branch flow passage (2), and the branch flow passage (2) is communicated with the main flow passage (1) through the electromagnetic valve.

10. The gas lance tube according to claim 1 or 9, wherein the inner wall of the port at the other end of the main flow channel (1) and the inner wall of the port at the two ends of the branch flow channel (2) are respectively provided with a second step (21), and the second step (21) is provided with a sealing cover (22).