CN209944330U - Gas distributor - Google Patents

Abstract

The utility model relates to a gas distributor, including gas distributor body, this gas distributor body is inside to have seted up the inner chamber, sets up air inlet and a plurality of gas outlet that are linked together with the inner chamber on the gas distributor body, just the nozzle is arranged and installed along horizontal interval to the gas outlet, its characterized in that: the gas distributor body is provided with a plurality of travel switches which are in one-to-one correspondence with the gas outlets, and the travel switches can close or open the corresponding gas outlets under the control of an electric signal. Compared with the prior art, the utility model has the advantages of: the travel switches which are in one-to-one correspondence with the air outlets are installed on the fuel gas distributor body, so that the travel switches close or open the corresponding air outlets under the control of an electric signal, the spraying state of fuel gas in the nozzle can be controlled, the fire power of the fuel gas distributor is adjusted to be in multiple grades, and the minimum temperature rise is low.

Description

Gas distributor

Technical Field

The utility model relates to a gas heater technical field specifically indicates a gas distributor.

Background

Most main burners of gas heating water heater of market hot-pin have only one section burning, have restricted minimum load, and in the in-service use process, the firepower of gas heater of this kind is adjusted the grade and is few, and minimum temperature rise is on the high side, is difficult to satisfy the difference in region and the difference in season: in summer, the water temperature is overheated; in winter, after the water temperature reaches the set temperature, the excessive firepower is adopted for heat preservation, which can cause the waste of energy; when water fluctuation occurs to cause section cutting, the temperature rise is large, so that the water temperature is quenched and heated.

In order to solve the problem, many manufacturers adopt a sectional type gas distributor, namely, an electromagnetic valve is adopted to control different nozzle fire groups on the gas distributor to burn, so that the burning fire power of the water heater is achieved, and the application range of the water heater is improved. Like utility model patent "gas heater with adjustable firepower" that patent application number is CN200420041096.8 (publication number is CN2702236Y) discloses sectional type distributor divide into the three-section, on three gas branch pipelines that are divided by the main pipeline that admits air received the distributor of corresponding section respectively, set up the solenoid valve on two gas branch pipelines at least, set up a total solenoid valve on the main pipeline that admits air, the air regulating valve set up on the main pipeline that admits air between total solenoid valve and distributor. The device has reasonable structure, can realize the staged combustion with different firepowers, and can realize the adjustable firepower of the staged combustion by controlling the air input of different firepower stages.

However, the existing gas distributor cannot be excessively segmented due to the influence of the volume of the electromagnetic valve, so that the minimum load is still too large, the firepower adjusting grade is low, and the minimum temperature rise is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, it is many that the grade is adjusted to a firepower, and the gas distributor that minimum temperature rise is low is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a gas distributor, includes the gas distributor body, this gas distributor body is inside to have seted up the inner chamber, sets up air inlet and a plurality of gas outlet that are linked together with the inner chamber on the gas distributor body, just the gas outlet is arranged and is installed nozzle, its characterized in that along horizontal interval: the gas distributor body is provided with a plurality of travel switches which are in one-to-one correspondence with the gas outlets, and the travel switches can close or open the corresponding gas outlets under the control of an electric signal.

Preferably, the travel switch comprises a travel switch main body, a push rod and a return spring, the push rod can be telescopically mounted on the travel switch main body and can move in the opposite direction of the air outlet in the electrified state, the return spring is mounted on the periphery of the push rod and can enable the push rod to always keep the trend of moving in the direction of the air outlet, and when the travel switch is electrified, the push rod moves in the opposite direction of the air outlet under the control of an electric signal to open the air outlet; when the travel switch is powered off, the push rod moves towards the air outlet under the action of the return spring to close the air outlet.

Preferably, a plurality of mounting ports for mounting the travel switch are formed in the gas distributor body, and the mounting ports and the gas outlet are respectively located on two sides of the gas distributor body, so that the travel switch can be mounted on the gas distributor body.

Preferably, the gas distributor body comprises a shell and a cover plate, wherein an opening is formed in one side of the shell, the cover plate covers the opening, and the inner cavity is formed after the shell and the cover plate are covered, so that the gas distributor body is convenient to open and assemble.

Further, a sealing element is sealed between the joint surfaces of the shell and the cover plate, so that the air tightness of the gas distributor body is improved.

Furthermore, the protruding a plurality of installation departments that are equipped with in opening edge of casing, seted up the first mounting hole of a plurality of on this installation department, correspondingly, set up the second mounting hole of a plurality of and first mounting hole one-to-one on the apron, casing and apron are fixed through fastener through first mounting hole and second mounting hole interconnect.

Preferably, the number of the air outlets is 7-15. Because the cost is improved because the gas outlet quantity is too much, the firepower adjusting grade is reduced and the minimum temperature rise is reduced because the gas outlet quantity is too little.

Compared with the prior art, the utility model has the advantages of: the travel switches which are in one-to-one correspondence with the air outlets are installed on the fuel gas distributor body, so that the travel switches close or open the corresponding air outlets under the control of an electric signal, the spraying state of fuel gas in the nozzle can be controlled, the fire power of the fuel gas distributor is adjusted to be in multiple grades, and the minimum temperature rise is low.

Drawings

FIG. 1 is a front view of a gas distributor according to an embodiment of the present invention;

FIG. 2 is an exploded view of the gas distributor body of the drawing;

FIG. 3 is a top view of a gas distributor according to an embodiment of the present invention;

fig. 4 is a left side view of the gas distributor according to the embodiment of the present invention;

FIG. 5 is an enlarged view of the travel switch of FIG. 4 when de-energized;

FIG. 6 is an enlarged view of the travel switch of FIG. 4 when energized.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, the gas distributor of the present embodiment includes a gas distributor body 1 and a stroke switch 2. In order to facilitate the opening and assembly of the gas distributor body 1, the gas distributor body 1 includes a housing 11 and a cover plate 12, wherein one side of the housing 11 has an opening 111, the cover plate 12 covers the opening 111, and an inner cavity a (not shown in the figure) is formed after the housing 11 and the cover plate 12 are covered. In order to improve the air tightness of the gas distributor body 1, a sealing element is sealed between the joint surfaces of the casing 11 and the cover plate 12, and in the embodiment, the sealing element is sealing cotton. The cover plate 12 is provided with an air inlet 121 communicated with the inner cavity a, the housing 11 is provided with a plurality of air outlets 112 communicated with the inner cavity a, and the air outlets 112 are transversely arranged at intervals and provided with nozzles 1121. The connection mode of casing 11 and apron 12 can set up as required, and in this embodiment, the protruding a plurality of installation departments 113 that are equipped with in opening 111 edge of casing 11, has seted up the first mounting hole 1131 of a plurality of on this installation department 113, correspondingly, has seted up the second mounting hole 123 of a plurality of and first mounting hole 1131 one-to-one on the apron 12, and casing 11 and apron 12 are fixed through fastener through first mounting hole 1131 and second mounting hole 123 interconnect.

The travel switches 2 are installed on the gas distributor body 1 and correspond to the gas outlets 112 one by one, and each travel switch 2 can close or open each gas outlet 112 under the control of an electric signal. Specifically, the travel switch 2 comprises a travel switch main body 21, a push rod 22 and a return spring 23, wherein the push rod 22 is telescopically mounted on the travel switch main body 21 and can move in the opposite direction of the air outlet 112 in the energized state, the return spring 23 is mounted on the periphery of the push rod 22 and can enable the push rod 22 to always keep the trend of moving in the direction of the air outlet 112, and when the travel switch 2 is energized, the push rod 22 moves in the opposite direction of the air outlet 112 under the control of an electric signal to open the air outlet 112; when the travel switch 2 is powered off, the push rod 22 moves towards the air outlet 112 under the action of the return spring 23, and the air outlet 112 is closed. The installation mode of each travel switch 2 on the gas distributor body 1 can be set as required, in this embodiment, the cover plate 12 is provided with a plurality of installation openings 122 for installing each travel switch 2, each installation opening 122 and the gas outlet 112 are respectively located at two sides of the gas distributor body 1, specifically, the travel switch main body 21 is clamped and exposed out of the installation openings 122, and the push rod 22 and the return spring 23 are accommodated in the inner cavity a.

In addition, the number of the air outlets 112 can be set according to requirements, and the number of the air outlets 112 is preferably 7-15, because the cost is increased due to the excessive number of the air outlets 112, the fire adjusting grade is reduced due to the insufficient number of the air outlets 112, and the minimum temperature rise is reduced. In the present embodiment, the number of the air outlets 112 is 11.

The working principle of the utility model is as follows:

(1) for each nozzle 1121 of the gas distributor:

① when the nozzle 1121 needs to be opened to eject the gas, the travel switch 2 corresponding to the nozzle 1121 in fig. 5 is powered on, the push rod 22 moves in the opposite direction of the gas outlet 112 under the control of the electric signal to open the gas outlet 112, at this time, as shown in fig. 6, the return spring 23 is in a compressed state, and the gas in the inner cavity a is ejected from the nozzle 1121 through the gas outlet 112;

② when the nozzle 1121 needs to be closed so that the gas cannot be ejected, the travel switch 2 corresponding to the nozzle 1121 in fig. 6 is powered off, the push rod 22 moves towards the gas outlet 112 under the action of the return spring 23 to close the gas outlet 112, and at this time, as shown in fig. 5, the gas in the inner cavity a cannot be ejected from the nozzle 1121 through the gas outlet 112;

(2) when the actual load is smaller than the demand load, the nozzles 1121 may be opened one by one until the actual load reaches the demand load, and when the actual load is greater than the demand load, the nozzles 1121 may be closed one by one until the actual load reaches the demand load, for example, the nozzle 1121 located at the center is numbered 1, the left sides are numbered 2, 4, 6, 8, and 10, and the right sides are numbered 3, 5, 7, 9, and 11, so that the user may sequentially open or close the travel switch 2 according to the load demand,

the gas distributor has the advantages that:

(1) the minimum load can be the minimum load of a single nozzle 1121, and the minimum temperature rise reaches the minimum;

(2) the nozzles 1121 are opened and closed one by one, and the water temperature fluctuation during cutting is low;

(3) the failure of the individual travel switch 2 does not cause the complete machine to be incapable of running and can be replaced independently;

(4) the existing fuel gas distributor such as 4/7 subsection distributor must first complete combustion and then close 4 sections when 4 sections are fired to 7 sections, and the firing process can be greatly optimized by one-to-one control of the travel switch 2, thereby ensuring the reliability of firing;

(5) the travel switch 2 is lower in cost than the electromagnetic valve, and cannot influence other components due to magnetic flux leakage.

Claims (7)

1. The utility model provides a gas distributor, includes gas distributor body (1), this gas distributor body (1) is inside to have seted up inner chamber (a), sets up air inlet (121) and a plurality of gas outlet (112) that are linked together with inner chamber (a) on gas distributor body (1), just gas outlet (112) are arranged and are installed nozzle (1121), its characterized in that along transverse interval: the gas distributor body (1) is provided with a plurality of travel switches (2) in one-to-one correspondence with the gas outlets (112), and the travel switches (2) can close or open the corresponding gas outlets (112) under the control of an electric signal.

2. The gas distributor of claim 1, wherein: the travel switch (2) comprises a travel switch main body (21), a push rod (22) and a return spring (23), wherein the push rod (22) can be telescopically mounted on the travel switch main body (21) and can move in the opposite direction of the air outlet (112) in the electrified state, the return spring (23) is mounted on the periphery of the push rod (22) and can enable the push rod (22) to always keep the trend of moving in the direction of the air outlet (112), and when the travel switch (2) is electrified, the push rod (22) moves in the opposite direction of the air outlet (112) under the control of an electric signal to open the air outlet (112); when the travel switch (2) is powered off, the push rod (22) moves towards the air outlet (112) under the action of the return spring (23) to close the air outlet (112).

3. The gas distributor of claim 1, wherein: the gas distributor is characterized in that the gas distributor body (1) is provided with a plurality of mounting ports (122) for mounting the travel switches (2), and the mounting ports (122) and the gas outlet (112) are respectively positioned on two sides of the gas distributor body (1).

4. The gas distributor of claim 1, wherein: the gas distributor body (1) comprises a shell (11) and a cover plate (12), an opening (111) is formed in one side of the shell (11), the cover plate (12) covers the opening (111), and the inner cavity (a) is formed after the shell (11) and the cover plate (12) cover the opening.

5. The gas distributor of claim 4, wherein: and a sealing element is sealed between the joint surfaces of the shell (11) and the cover plate (12).

6. The gas distributor of claim 4, wherein: the opening (111) edge of casing (11) is protruding to be equipped with a plurality of installation department (113), has seted up a plurality of first mounting hole (1131) on this installation department (113), correspondingly, set up a plurality of and second mounting hole (123) of first mounting hole (1131) one-to-one on apron (12), casing (11) and apron (12) are fixed through fastener through first mounting hole (1131) and second mounting hole (123) interconnect.

7. A gas distributor as claimed in any one of claims 1 to 6, wherein: the number of the air outlets (112) is 7-15.

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