阅读说明：本技术 一种电控双腔燃气混合器 (Electric control double-cavity gas mixer ) 是由 陈其安 王学盛 于 2021-09-22 设计创作，主要内容包括：本发明公开了一种电控双腔燃气混合器,包括本体,本体内平行设置有第一通道和第二通道,还包括装设在本体上的气门组件和供气组件,第一通道和第二通道内均装设有混合喉管,本体一侧设有第一腔体和第二腔体,第一腔体和第二腔体之间设有隔板,第一腔体和第二腔体内均设有凸台,凸台上均设置有连通孔,连通孔内旋合有量孔螺塞,量孔螺塞上设置有主量孔；气门组件包括分别设置于第一通道和第二通道出口端的节气门板,节气门板均与轴连接；轴由步进电机驱动正反转动；供气组件用于向第一通道和第二通道供应燃气,供气组件包括盖体和装设于盖体上的转换开关,转换开关用于切断及改变燃气的供应量。(The invention discloses an electric control double-cavity gas mixer which comprises a body, wherein a first channel and a second channel are arranged in the body in parallel, the electric control double-cavity gas mixer also comprises a valve assembly and a gas supply assembly which are arranged on the body, mixing throats are respectively arranged in the first channel and the second channel, a first cavity and a second cavity are arranged on one side of the body, a partition plate is arranged between the first cavity and the second cavity, bosses are respectively arranged in the first cavity and the second cavity, communication holes are respectively arranged on the bosses, metering hole screw plugs are screwed in the communication holes, and main metering holes are arranged on the metering hole screw plugs; the air valve assembly comprises air throttle plates which are respectively arranged at the outlet ends of the first channel and the second channel, and the air throttle plates are connected with the shaft; the shaft is driven by a stepping motor to rotate forwards and backwards; the gas supply assembly is used for supplying gas to the first channel and the second channel, and comprises a cover body and a change-over switch arranged on the cover body, and the change-over switch is used for cutting off and changing the supply amount of the gas.)

1. The utility model provides an automatically controlled two-chamber gas mixer, includes body (1), parallel arrangement has first passageway (101) and second passageway (102) in body (1), its characterized in that: the device is characterized by further comprising a valve assembly (2) and an air supply assembly (3) which are arranged on the body (1), wherein a mixing throat pipe (103) is arranged in each of the first channel (101) and the second channel (102), a first cavity (104) and a second cavity (105) are arranged on one side of the body (1), a partition plate (106) is arranged between the first cavity (104) and the second cavity (105), bosses (108) are arranged in each of the first cavity (104) and the second cavity (105), communication holes (109) are formed in each boss (108), a metering hole plug screw (110) is screwed in each communication hole (109), and a main metering hole (111) is formed in each metering hole plug screw (110); the valve assembly (2) comprises throttle plate (201) respectively arranged at the outlet ends of the first channel (101) and the second channel (102), and the throttle plate (201) is connected with a shaft (202); the shaft (202) is driven by a stepping motor (204) to rotate forwards and backwards; gas supply subassembly (3) are used for to first passageway (101) with second passageway (102) supply the gas, gas supply subassembly (3) include lid (301) and install in change over switch (302) on lid (301), lid (301) with be equipped with on body (1) first cavity (104) with one side sealing connection of second cavity (105), change over switch (302) are used for cutting off and changing the supply capacity of gas.

2. An electrically controlled dual chamber gas mixer according to claim 1, characterized in that said gas supply assembly (3) further comprises:

an air inlet pipe (303) arranged on the cover body (301);

a third cavity (308) which is arranged on the cover body (301), and the third cavity (308) covers the first cavity (104) and the boss (108) in the first cavity (104);

a fourth cavity (309) disposed on the cover (301), wherein the fourth cavity (309) covers the second cavity (105) and the boss (108) in the second cavity (105);

the third cavity (308) and the fourth cavity (309) are used for communicating the first cavity (104) and the second cavity (105) with the corresponding main metering orifice (111);

change over switch (302) including connecting handle (310) and rotatory section of thick bamboo (311) as an organic whole, rotatory section of thick bamboo (311) is rotatable to be set up on lid (301), rotatory section of thick bamboo (311) with intake pipe (303) mutually perpendicular sets up, be provided with main inlet port (304) on rotatory section of thick bamboo (311), main inlet port (304) with rotatory section of thick bamboo (311) are coaxial, rotatory section of thick bamboo (311) radially are provided with first jet (305) and second jet (306), first jet (305) with second jet (306) are coaxial and with intake pipe (303) looks adaptation, main inlet port (304) pass through first jet (305) or second jet (306) with intake pipe (303) intercommunication, handle (310) are located the lid (301) outside.

3. The electrically controlled dual chamber gas mixer of claim 2, wherein: two grooves (107) for accommodating the front end of the rotary cylinder (311) are formed in the partition plate (106), and the part, located between the two grooves (107), of the partition plate (106) extends into a main air inlet hole (304) of the rotary cylinder (311).

4. The electrically controlled dual chamber gas mixer of claim 3, wherein: the stepping motor (204) is arranged in a motor base (203), and the motor base (203) is connected with an upright post (113) arranged on the body (1).

5. The electrically controlled dual-chamber gas mixer according to claim 4, wherein: a sealing gasket (4) is arranged between the cover body (301) and the body (1), and the cover body (301) is connected with the body (1) through a connecting bolt (307).

6. The electrically controlled dual chamber gas mixer of claim 5, wherein: mix on choke (103) excircle and be close to the one end of throttle plate (201) is equipped with annular (1031), it is equipped with locking bolt (112) to close on boss (108), locking bolt (112) front end with annular (1031) adaptation, the symmetry is equipped with waist shape through-hole (1032) on mixing choke (103), waist shape through-hole (1032) intercommunication main graduated bore (111) with mix choke (103) inner chamber.

7. The electrically controlled dual chamber gas mixer of claim 2, wherein: the first orifice (305) has an inner diameter greater than the inner diameter of the second orifice (306).

Technical Field

The invention relates to the technical field of universal engines, in particular to an electric control double-cavity gas mixer.

Background

Currently, a two-cylinder universal engine is generally used for a generator, a fire pump, a cleaning machine or a marine power and the like. The fuel with better economical efficiency mainly comprises Liquefied Petroleum Gas (LPG) and Natural Gas (NG). When the double-cylinder engine uses liquefied petroleum gas and natural gas, a pressure reducing valve is generally adopted to reduce the pressure of the Liquefied Petroleum Gas (LPG) and the Natural Gas (NG), then the Liquefied Petroleum Gas (LPG) and the Natural Gas (NG) are connected into a mixer, the mixture is mixed with air through the mixer and then supplied to the engine, the supply quantity of the mixed gas is adjusted by a throttle valve, the supply quantity of the fuel gas is not well adjusted under different altitudes, and the combustion efficiency is influenced; meanwhile, the mixer body is generally of an integrally cast structure, and the air supply channel is processed through a drilling process.

Disclosure of Invention

The invention aims to provide an electric control double-cavity gas mixer, which solves the problems of poor regulation of gas supply, long scene response combustion efficiency, long processing time of a mixer body, complex process, more materials and low material utilization rate in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an electric control double-cavity gas mixer comprises a body 1, wherein a first channel 101 and a second channel 102 are arranged in the body 1 in parallel, the electric control double-cavity gas mixer further comprises a valve assembly 2 and a gas supply assembly 3 which are arranged on the body 1, mixing throats 103 are arranged in the first channel 101 and the second channel 102 respectively, a first cavity 104 and a second cavity 105 are arranged on one side of the body 1, a partition plate 106 is arranged between the first cavity 104 and the second cavity 105, bosses 108 are arranged in the first cavity 104 and the second cavity 105 respectively, communication holes 109 are arranged on the bosses 108, metering hole screw plugs 110 are screwed in the communication holes 109, and main metering holes 111 are arranged on the metering hole screw plugs 110; the valve assembly 2 comprises throttle plates 201 which are respectively arranged at the outlet ends of the first channel 101 and the second channel 102, and the throttle plates 201 are connected with a shaft 202; the shaft 202 is driven by a stepping motor 204 to rotate forwards and backwards; the gas supply assembly 3 is used for supplying gas to the first channel 101 and the second channel 102, the gas supply assembly 3 includes a cover 301 and a switch 302 installed on the cover 301, the cover 301 is hermetically connected to one side of the body 1 on which the first cavity 104 and the second cavity 105 are installed, and the switch 302 is used for cutting off and changing the supply amount of the gas.

Further, the gas supply assembly 3 further includes:

an air inlet pipe 303 provided on the cover body 301;

the third cavity 308 is arranged on the cover body 301, and the third cavity 308 covers the first cavity 104 and the boss 108 in the first cavity 104;

a fourth cavity 309 disposed on the cover 301, wherein the fourth cavity 309 covers the second cavity 105 and the boss 108 in the second cavity 105;

the third cavity 308 and the fourth cavity 309 are used for communicating the first cavity 104 and the second cavity 105 with the corresponding main metering orifice 111;

the change-over switch 302 comprises a handle 310 and a rotary cylinder 311 which are connected into a whole, the rotary cylinder 311 is rotatably arranged on the cover body 301, the rotary cylinder 311 and the air inlet pipe 303 are perpendicular to each other, a main air inlet hole 304 is arranged on the rotary cylinder 311, the main air inlet hole 304 is coaxial with the rotary cylinder 311, a first measuring hole 305 and a second measuring hole 306 are radially arranged on the rotary cylinder 311, the first measuring hole 305 and the second measuring hole 306 are coaxial and are matched with the air inlet pipe 303, the main air inlet hole 304 is communicated with the air inlet pipe 303 through the first measuring hole 305 or the second measuring hole 306, and the handle 310 is positioned outside the cover body 301.

Further: two grooves 107 for accommodating the front end of the rotary cylinder 311 are arranged on the partition plate 106, and the part of the partition plate 106 positioned between the two grooves 107 extends into the main air inlet hole 304 of the rotary cylinder 311.

Further: the stepping motor 204 is installed in the motor base 203, and the motor base 203 is connected with the upright post 113 arranged on the body 1.

Further: a sealing gasket 4 is arranged between the cover 301 and the body 1, and the cover 301 is connected with the body 1 through a connecting bolt 307.

Further: mix on the choke 103 excircle be close to throttle plate 201's one end is equipped with annular 1031, the rotation is equipped with locking bolt 112 on the boss 108, locking bolt 112 front end with annular 1031 adaptation, the symmetry is equipped with waist shape through-hole 1032 on the mixing choke 103, waist shape through-hole 1032 intercommunication main metering orifice 111 with mix the choke 103 inner chamber.

Further: the inner diameter of first orifice 305 is greater than the inner diameter of second orifice 306.

The invention has the beneficial effects that: according to the electric control double-cavity gas mixer, the stepping motor is used as a driving piece and is electrically connected with the engine ECU, so that the opening angle of the throttle plate can be accurately controlled, the air inflow of mixed gas can be dynamically controlled according to the instruction of the ECU, and the combustion efficiency is improved; the supply amount of two grades of fuel gas can be conveniently adjusted by arranging the change-over switch, so that the combustion efficiency is further ensured; set up air feed subassembly and body into split type structure, the equal direct casting shaping of first cavity, second cavity, third cavity, fourth cavity is favorable to reducing raw and other materials use amount, alleviates product weight, has reduced machining volume simultaneously, has simplified the processing technology, is showing the reduce cost, has promoted product quality.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of another aspect of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a sectional view a-a in fig. 3.

Fig. 5 is a perspective view of the present invention with the cover removed.

Fig. 6 is a perspective view of the cover of the present invention.

Figure 7 is a perspective view of the hybrid throat and lockbolt of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an electrically controlled dual-chamber gas mixer comprises a body 1, wherein a first channel 101 and a second channel 102 are arranged in parallel in the body 1, the electrically controlled dual-chamber gas mixer further comprises a valve assembly 2 and a gas supply assembly 3 which are arranged on the body 1, a mixing throat 103 is arranged in each of the first channel 101 and the second channel 102, a first cavity 104 and a second cavity 105 are arranged on one side of the body 1, a partition plate 106 is arranged between the first cavity 104 and the second cavity 105, bosses 108 are arranged in each of the first cavity 104 and the second cavity 105, communication holes 109 are arranged on each boss 108, a metering hole plug screw 110 is screwed in each communication hole 109, and a main metering hole 111 is arranged on each metering hole plug screw 110; the valve assembly 2 comprises throttle plates 201 which are respectively arranged at the outlet ends of the first channel 101 and the second channel 102, and the throttle plates 201 are connected with a shaft 202; the shaft 202 is driven by a stepping motor 204 to rotate forwards and backwards; the gas supply assembly 3 is used for supplying gas to the first channel 101 and the second channel 102, the gas supply assembly 3 comprises a cover body 301 and a change-over switch 302 arranged on the cover body 301, the cover body 301 is hermetically connected with one side of the body 1, which is provided with the first cavity 104 and the second cavity 105, the change-over switch 302 is used for cutting off and changing the supply amount of the gas, and the stepping motor 204 is used as a driving piece to be electrically connected with an engine ECU (not shown), so that the opening angle of the throttle plate 201 can be accurately controlled, namely the gas inflow of mixed gas can be dynamically controlled according to the instruction of the ECU, and the combustion efficiency is improved; through setting up change over switch 302 can be convenient two grades of gas supply volumes of regulation, further guarantee combustion efficiency.

Preferably, the gas supply assembly 3 further comprises: the air inlet pipe 303, the third cavity 308 and the fourth cavity 309, wherein the air inlet pipe 303 is arranged on the cover body 301; the third cavity 308 is disposed on the cover 301, and the third cavity 308 covers the first cavity 104 and the boss 108 in the first cavity 104; the fourth cavity 309 is disposed on the cover 301, and the fourth cavity 309 covers the second cavity 105 and the boss 108 in the second cavity 105; the third cavity 308 and the fourth cavity 309 are used for communicating the first cavity 104 and the second cavity 105 with the corresponding main metering orifices 111; the change-over switch 302 comprises a handle 310 and a rotary cylinder 311 which are connected into a whole, the rotary cylinder 311 is rotatably arranged on the cover body 301, the rotary cylinder 311 and the air inlet pipe 303 are arranged perpendicular to each other, a main air inlet 304 is arranged on the rotary cylinder 311, the main air inlet 304 is coaxial with the rotary cylinder 311, the rotary cylinder 311 is radially provided with a first measuring hole 305 and a second measuring hole 306, the first measuring hole 305 and the second measuring hole 306 are coaxial and are matched with the air inlet pipe 303, the main air inlet 304 is communicated with the air inlet pipe 303 through the first measuring hole 305 or the second measuring hole 306, the handle 310 is arranged outside the cover body 301, through the arrangement, the handle 310 is rotated to enable the first measuring hole 305 or the second measuring hole 306 to be respectively communicated with the air inlet pipe 303, so as to control the supply amount of the gas, when the first measuring hole 305 or the second measuring hole 306 is respectively communicated with the air inlet pipe 303, the gas enters the main air inlet 304 from the air inlet pipe 303 and passes through the first cavity 104, the third cavity 308, the second cavity 105, the third cavity 308, The passage of the fourth cavity 309 is conveyed to the inner cavity of the mixing throat 103 by the corresponding main metering orifice 111 to be mixed with air, and the formed mixed gas is controlled by the throttle plate 201 to enter the engine; through setting up air feed subassembly 3 and body 1 into split type structure, first cavity 104, second cavity 105, third cavity 308, fourth cavity 309 all can directly cast the shaping, are favorable to reducing raw and other materials use amount, alleviate product weight, have reduced machining volume simultaneously, have simplified processing technology, are showing the reduce cost, have promoted product quality.

Preferably: be equipped with two grooves 107 that are used for holding a rotatory section of thick bamboo 311 front end on the baffle 106, the part that baffle 106 is located between two grooves 107 stretches into in the main inlet port 304 of a rotatory section of thick bamboo 311, through above setting, forms the distribution channel behind the main inlet port 304 that baffle 106 stretches into a rotatory section of thick bamboo 311 and carries out the drainage distribution to the gas, is favorable to guaranteeing the homogeneity of distribution, and then guarantees that the gas volume that gets into two mixing hollow throats 103 is unanimous.

Preferably: step motor 204 installs in motor cabinet 203, and motor cabinet 203 is connected with the stand 113 of locating on the body 1, so, forms a space that is favorable to the heat dissipation between motor cabinet 203 and body 1, avoids step motor 204 to receive the heat influence of the engine that comes through the body conduction, guarantees step motor 204 and works stably for a long time.

Preferably: be equipped with seal gasket 4 between lid 301 and the body 1, lid 301 passes through connecting bolt 307 and is connected with body 1, so set up, guarantee the reliability that lid 301 and body 1 are connected, prevent that the gas from leaking.

Preferably: one end of the outer circle of the mixing throat pipe 103, which is close to the throttle plate 201, is provided with a ring groove 1031, a locking bolt 112 is screwed on the boss 108, the front end of the locking bolt 112 is matched with the ring groove 1031, waist-shaped through holes 1032 are symmetrically arranged on the mixing throat pipe 103, the waist-shaped through holes 1032 are communicated with the main metering hole 111 and the inner cavity of the mixing throat pipe 103, and the mixing throat pipe 103 adopts a Venturi tube structure.

Preferably: the internal diameter of first graduated bore 305 is greater than the internal diameter of second graduated bore 306, through this setting, the gas volume that gets into mixing choke 103 when twist grip 301 makes first graduated bore 305 and intake pipe 303 communicate is many, the gas volume that gets into mixing choke 103 when twist grip 301 makes second graduated bore 306 and intake pipe 303 communicate is little, form two grades of regulations of gas supply, the convenience is in the use in different sea areas, also can be used to when using different gas sources, such as Liquefied Petroleum Gas (LPG) or Natural Gas (NG), select suitable first graduated bore 305 or second graduated bore 306 to be used for communicating with the air supply, and simple structure, low cost, the practicality is good.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.