阅读说明：本技术 一种燃气锅炉的自动稳压装置 (Automatic pressure stabilizer of gas boiler ) 是由 柳明 于 2021-07-29 设计创作，主要内容包括：本发明属于燃气锅炉技术领域,提供了一种燃气锅炉的自动稳压装置,包括燃气锅炉烟道,所述燃气锅炉烟道靠近燃气锅炉的一侧固定安装有用于采集压力值的第一采集模块,所述燃气锅炉烟道的平直段上设置有多个稳压叶片组以及用于驱动多个稳压叶片组同步进行角度变化的驱动机构,驱动机构与燃气锅炉烟道固定连接,所述燃气锅炉烟道远离燃气锅炉的一侧固定安装有用于采集压力值的第二采集模块,第一采集模块、第二采集模块和驱动机构均与控制器电连接。本发明的一种燃气锅炉的自动稳压装置,使烟道的抽力始终处于合适的范围,保持燃气锅炉较高的热效率。(The invention belongs to the technical field of gas boilers, and provides an automatic pressure stabilizing device of a gas boiler, which comprises a gas boiler flue, wherein a first collecting module for collecting a pressure value is fixedly installed on one side, close to the gas boiler, of the gas boiler flue, a plurality of pressure stabilizing blade groups and a driving mechanism for driving the plurality of pressure stabilizing blade groups to synchronously change angles are arranged on a straight section of the gas boiler flue, the driving mechanism is fixedly connected with the gas boiler flue, a second collecting module for collecting the pressure value is fixedly installed on one side, far away from the gas boiler, of the gas boiler flue, and the first collecting module, the second collecting module and the driving mechanism are all electrically connected with a controller. The automatic pressure stabilizing device of the gas boiler ensures that the suction force of the flue is always in a proper range and keeps higher heat efficiency of the gas boiler.)

1. The utility model provides a gas boiler's automatic pressure regulator, includes gas boiler flue (1), its characterized in that: gas boiler flue (1) is close to one side fixed mounting of gas boiler and is used for gathering the first collection module of pressure value, be provided with a plurality of steady voltage blade groups on the straight section of gas boiler flue (1) and be used for driving a plurality of steady voltage blade groups and carry out the actuating mechanism that the angle changed in step, actuating mechanism and gas boiler flue (1) fixed connection, one side fixed mounting that gas boiler was kept away from in gas boiler flue (1) has the second collection module that is used for gathering the pressure value, and first collection module, second collection module and actuating mechanism all are connected with the controller electricity.

2. The automatic pressure stabilizing apparatus of a gas boiler according to claim 1, wherein: the output ends of the first acquisition module and the second acquisition module are connected with the acquisition circuit, the acquisition circuit is connected with the analog-digital conversion circuit, the analog-digital conversion circuit is connected with the controller, the driving mechanism is connected with the digital-analog conversion circuit, and the digital-analog conversion circuit is connected with the controller.

3. The automatic pressure stabilizing apparatus of a gas boiler according to claim 1, wherein: actuating mechanism includes servo motor (11), drive assembly and a plurality of linkage subassembly, servo motor (11) and the outside fixed connection of gas boiler flue (1), gas boiler's inside is arranged in to drive assembly, servo motor's (11) output shaft pass gas boiler's inside and with drive assembly's one end coaxial coupling, drive assembly's the other end and gas boiler flue (1) rotate and are connected, drive assembly and a plurality of linkage subassembly drive are connected, a plurality of linkage subassemblies and a plurality of steady voltage blade group one-to-one, the one end of a plurality of linkage subassemblies all drives the one end of corresponding steady voltage blade group and removes, the one end of a plurality of linkage subassemblies all rotates with the other end of corresponding steady voltage blade group and is connected, servo motor (11) are connected with digital analog conversion circuit.

4. The automatic pressure stabilizing apparatus of a gas boiler according to claim 3, wherein: the drive assembly comprises a rotating shaft (12), one end of the rotating shaft (12) is coaxially connected with a servo motor (11), the other end of the rotating shaft (12) is rotatably connected with a gas boiler flue (1), a plurality of first bevel gears (13) are coaxially connected with the rotating shaft (12), the plurality of first bevel gears (13) are in one-to-one correspondence with the plurality of linkage assemblies respectively, and the plurality of first bevel gears (13) are in driving connection with the corresponding linkage assemblies.

5. The automatic pressure stabilizing apparatus of a gas boiler according to claim 4, wherein: the linkage assembly comprises a second bevel gear (16), a connecting rod (14) and a lead screw (15), the second bevel gear (16) is coaxially connected with one end of the connecting rod (14), the second bevel gear (16) is meshed with the first bevel gear (13), the other end of the connecting rod (14) is coaxially connected with the lead screw (15), the lead screw (15) is fixedly connected with a flue (1) of the gas boiler, one end of a pressure stabilizing blade group is rotatably connected with a nut seat of the lead screw (15), a rotating block (141) is rotatably arranged on the connecting rod (14), and the rotating block (141) is rotatably connected with the other end of the pressure stabilizing blade group.

6. The automatic pressure stabilizing apparatus of a gas boiler according to claim 5, wherein: one end of the gas boiler flue (1) close to the second bevel gear (16) is fixedly provided with a support plate (18), and the connecting rod (14) penetrates through a through hole (181) in the support plate (18) and is rotationally connected with the side wall of the through hole (181).

7. The automatic pressure stabilizing apparatus of a gas boiler according to claim 5, wherein: one end of the pressure stabilizing blade group is rotatably connected with a first connecting shaft (191), the first connecting shaft (191) is fixedly connected with a nut seat of the screw rod (15), the other end of the pressure stabilizing blade group is rotatably connected with a second connecting shaft (192), and the second connecting shaft (192) is fixedly connected with a rotating block (141).

8. The automatic pressure stabilizing apparatus of a gas boiler according to claim 7, wherein: the top of steady voltage blade group is equipped with slide bar (17), slide bar (17) are through the top fixed connection of two fixed blocks (173) and gas boiler flue (1), be equipped with sliding block (171) and stopper (172) on slide bar (17), sliding block (171) and slide bar (17) sliding connection, stopper (172) and slide bar (17) fixed connection, the top fixed connection of sliding block (171) and first connecting axle (191), the top fixed connection of stopper (172) and second connecting axle (192).

9. The automatic pressure stabilizing apparatus of a gas boiler according to claim 1, wherein: the pressure stabilizing blade group comprises a plurality of blades (19), the blades (19) are connected through hinges, a first connecting shaft (191) is rotatably connected with the edge of the blade (19) at one side end, and a second connecting shaft (192) is rotatably connected with the edge of the blade (19) at the other side end.

Technical Field

The invention relates to the technical field of gas-fired boilers, in particular to an automatic pressure stabilizing device of a gas-fired boiler.

Background

The gas-fired boiler comprises a gas-fired water boiler, a gas-fired hot water boiler, a gas-fired steam boiler and the like, wherein the gas-fired hot water boiler is also called a gas-fired heating boiler and a gas-fired bathing boiler, the gas-fired boiler refers to a boiler with fuel gas as the name implies, and the gas-fired boiler is most economical compared with an oil-fired boiler and an electric boiler, so that most people select the gas-fired boiler as boiler equipment for steam, heating and bathing.

In the working process of the gas boiler, smoke is discharged through the flue, and the draft of the flue is an important factor influencing the combustion stability and maintaining high heat efficiency of the gas boiler. In daily use, the draft of the flue is increased due to the influence of the external air temperature, so that the heat of the flue gas is seriously dissipated, and the draft of the flue cannot be controlled due to the real-time change of the external air temperature, so that a pressure stabilizing device is required to be added in the flue to ensure that the draft of the flue is always in a proper range to ensure the heat efficiency of the gas-fired boiler.

Disclosure of Invention

Aiming at the defects in the prior art, the automatic pressure stabilizing device of the gas boiler provided by the invention enables the suction force of the flue to be always in a proper range, and keeps higher heat efficiency of the gas boiler.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a gas boiler's automatic voltage regulator device, includes the gas boiler flue, one side fixed mounting that the gas boiler flue is close to gas boiler has the first collection module that is used for gathering the pressure value, be provided with a plurality of steady voltage blading on the straight section of gas boiler flue and be used for driving a plurality of steady voltage blading and carry out the actuating mechanism of angle change in step, actuating mechanism and gas boiler flue fixed connection, one side fixed mounting that gas boiler was kept away from to the gas boiler flue has the second collection module that is used for gathering the pressure value, and first collection module, second collection module and actuating mechanism all are connected with the controller electricity.

Furthermore, the output ends of the first acquisition module and the second acquisition module are connected with acquisition circuits, the acquisition circuits are connected with an analog-digital conversion circuit, the analog-digital conversion circuit is connected with a controller, the driving mechanism is connected with a digital-analog conversion circuit, and the digital-analog conversion circuit is connected with the controller.

Further, actuating mechanism includes servo motor, drive assembly and a plurality of linkage subassembly, servo motor and the outside fixed connection of gas boiler flue, drive assembly arranges gas boiler's inside in, servo motor's output shaft passes gas boiler's inside and with drive assembly's one end coaxial coupling, drive assembly's the other end rotates with gas boiler flue to be connected, drive assembly and a plurality of linkage subassembly drives to be connected, a plurality of linkage subassemblies and a plurality of steady voltage blade group one-to-one, the one end of a plurality of linkage subassemblies all drives the one end of corresponding steady voltage blade group and removes, the one end of a plurality of linkage subassemblies all rotates with the other end of corresponding steady voltage blade group to be connected, servo motor and digital analog conversion circuit are connected.

Further, the drive assembly comprises a rotating shaft, one end of the rotating shaft is coaxially connected with the servo motor, the other end of the rotating shaft is rotatably connected with the flue of the gas boiler, a plurality of first bevel gears are coaxially connected with the rotating shaft, the plurality of first bevel gears are in one-to-one correspondence with the plurality of linkage assemblies respectively, and the plurality of first bevel gears are in drive connection with the corresponding linkage assemblies.

Further, the linkage assembly comprises a second bevel gear, a connecting rod and a lead screw, the second bevel gear is coaxially connected with one end of the connecting rod, the second bevel gear is meshed with the first bevel gear, the other end of the connecting rod is coaxially connected with the lead screw, the lead screw is fixedly connected with a flue of the gas boiler, one end of the pressure stabilizing blade group is rotatably connected with a nut seat of the lead screw, a rotating block is rotatably arranged on the connecting rod, and the rotating block is rotatably connected with the other end of the pressure stabilizing blade group.

Furthermore, a supporting plate is fixedly installed at one end, close to the second bevel gear, of the flue of the gas boiler, and the connecting rod penetrates through a through hole in the supporting plate and is rotatably connected with the side wall of the through hole.

Furthermore, one end of the pressure stabilizing blade group is rotatably connected with a first connecting shaft, the first connecting shaft is fixedly connected with a nut seat of the screw rod, the other end of the pressure stabilizing blade group is rotatably connected with a second connecting shaft, and the second connecting shaft is fixedly connected with the rotating block.

Further, the top of steady voltage blade group is equipped with the slide bar, and the slide bar is equipped with sliding block and stopper through the top fixed connection of two fixed blocks and gas boiler flue on the slide bar, sliding block and slide bar sliding connection, stopper and slide bar fixed connection, the top fixed connection of sliding block and first connecting axle, the top fixed connection of stopper and second connecting axle.

Furthermore, the voltage stabilizing blade group comprises a plurality of blades which are connected through hinges, the first connecting shaft is rotatably connected with the edge of the blade at the end part of one side, and the second connecting shaft is rotatably connected with the edge of the blade at the end part of the other side.

According to the technical scheme, the invention has the beneficial effects that: gather the flue pressure that is close to gas boiler side through first collection module respectively, the flue pressure of keeping away from gas boiler side is gathered to the second collection module, and send for the controller, calculate through the PID algorithm and obtain the calculation result and move simultaneously according to the one end that calculation result control actuating mechanism drove a plurality of steady voltage blading, make a plurality of steady voltage blading carry out angle change in step, block the flue gas in the gas boiler flue, the suction in alleviating, increase the dwell time of flue gas, improve gas boiler's thermal efficiency, until a plurality of steady voltage blading keep suitable angle, at this moment, the pressure value that first collection module gathered equals with the flue pressure numerical value of settlement, thereby the suction that makes the flue is in suitable scope all the time, keep the higher thermal efficiency of gas boiler.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a block diagram of a system of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of another embodiment of the present invention.

Reference numerals:

1-flue of gas boiler;

11-a servo motor; 12-a rotating shaft; 13-a first bevel gear; 14-a connecting rod; 15-a lead screw; 16-a second bevel gear; 17-a slide bar; 18-a support plate; 19-a blade;

141-a turning block; 171-a slider; 172-a limiting block; 173-fixed block; 181-a through hole; 191 — a first connecting shaft; 192-second connecting shaft.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1-3, the automatic pressure stabilizing device of gas boiler that this embodiment provided, including gas boiler flue 1, one side fixed mounting that gas boiler flue 1 is close to gas boiler has the first collection module that is used for gathering the pressure value, be provided with a plurality of steady voltage blade groups on the straight section of gas boiler flue 1 and be used for driving a plurality of steady voltage blade groups and carry out the actuating mechanism of angle change in step, actuating mechanism and 1 fixed connection of gas boiler flue, one side fixed mounting that gas boiler flue 1 kept away from gas boiler has the second collection module that is used for gathering the pressure value, first collection module, second collection module and actuating mechanism all are connected with the controller electricity. The controller is a single chip microcomputer controller. The first acquisition module and the second acquisition module can adopt a differential pressure transmitter or a pressure sensor.

In the in-service use, gather the flue pressure that is close to the gas boiler side through first collection module respectively, the flue pressure of keeping away from the gas boiler side is gathered to the second collection module, and send for the controller, calculate through the PID algorithm and obtain the calculation result and control the one end that actuating mechanism drove a plurality of steady voltage blading and move simultaneously according to the calculation result, make a plurality of steady voltage blading carry out the angle change in step, block the flue gas in the gas boiler flue 1, the suction in alleviating, increase the dwell time of flue gas, improve gas boiler's thermal efficiency, until a plurality of steady voltage blading keep suitable angle, at this moment, the pressure value that first collection module gathered equals with the flue pressure numerical value of settlement, thereby the suction that makes the flue is in suitable scope all the time, keep gas boiler's higher thermal efficiency. The method of performing the calculation by the PID algorithm is the prior art, and thus is not described in detail. In order to facilitate the installation of the driving mechanism and the plurality of pressure stabilizing blade sets, the flue 1 of the gas boiler may be provided in a square shape.

In this embodiment, the output ends of the first and second acquisition modules are connected to the acquisition circuit, the acquisition circuit is connected to the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is connected to the controller, the driving mechanism is connected to the digital-to-analog conversion circuit, and the digital-to-analog conversion circuit is connected to the controller.

In actual use, the pressure values acquired by the first acquisition module and the second acquisition module reach the analog-digital conversion circuit through the acquisition circuit to be subjected to digital conversion, and are sent to the controller, and the controller calculates the flue pressure at different positions according to a PID algorithm to obtain a calculation result and converts the calculation result into an analog signal for controlling the driving mechanism through the digital-analog conversion circuit. The acquisition circuit, the analog-to-digital conversion circuit and the digital-to-analog conversion circuit are prior art and are not described in detail.

In this embodiment, actuating mechanism includes servo motor 11, drive assembly and a plurality of linkage subassembly, servo motor 11 and gas boiler flue 1's outside fixed connection, gas boiler's inside is arranged in to drive assembly, servo motor 11's output shaft pass gas boiler's inside and with drive assembly's one end coaxial coupling, drive assembly's the other end and gas boiler flue 1 rotate to be connected, drive assembly and a plurality of linkage subassembly drives to be connected, a plurality of linkage subassemblies and a plurality of steady voltage blade group one-to-one, the one end of a plurality of linkage subassemblies all drives the one end of corresponding steady voltage blade group and removes, the one end of a plurality of linkage subassemblies all rotates with the other end of corresponding steady voltage blade group to be connected, servo motor 11 and digital analog conversion circuit are connected.

In actual use, the servo motor 11 works according to the analog control signal, drives the driving component to rotate and drives one end of the pressure stabilizing blade group to move through one end of the linkage component, and because the position of the other end of the pressure stabilizing blade group does not change, one end of the pressure stabilizing blade group moves, the angle of the pressure stabilizing blade group changes, and therefore the change of the drawing force in the flue 1 of the gas boiler is caused, and the retention time of the flue gas is changed.

In this embodiment, the driving assembly includes a rotating shaft 12, one end of the rotating shaft 12 is coaxially connected with the servo motor 11, the other end of the rotating shaft 12 is rotatably connected with the flue 1 of the gas boiler, a plurality of first bevel gears 13 are coaxially connected with the rotating shaft 12, the plurality of first bevel gears 13 respectively correspond to the plurality of linkage assemblies one-to-one, and the plurality of first bevel gears 13 are all in driving connection with the corresponding linkage assemblies.

In practical use, the output shaft of the servo motor 11 rotates to drive the rotating shaft 12 to rotate, the rotating shaft 12 rotates to drive the plurality of first bevel gears 13 to synchronously rotate, and the rotation of the plurality of first bevel gears 13 drives one end of the corresponding linkage assembly to move.

In this embodiment, the linkage assembly includes a second bevel gear 16, a connecting rod 14 and a lead screw 15, the second bevel gear 16 is coaxially connected with one end of the connecting rod 14, the second bevel gear 16 is engaged with the first bevel gear 13, the other end of the connecting rod 14 is coaxially connected with the lead screw 15, the lead screw 15 is fixedly connected with the flue 1 of the gas boiler, one end of the pressure stabilizing blade group is rotatably connected with a nut seat of the lead screw 15, a rotating block 141 is rotatably arranged on the connecting rod 14, and the rotating block 141 is rotatably connected with the other end of the pressure stabilizing blade group.

In practical use, the rotation of the first bevel gear 13 drives the second bevel gear 16 to rotate, the rotation of the second bevel gear 16 drives the ball screw of the connecting rod 14 and the screw rod 15 to rotate, the rotation of the ball screw drives the nut seat to move, the movement of the nut seat drives one end of the pressure stabilizing blade group to move, and as the rotating block 141 does not move on the connecting rod 14, one end of the pressure stabilizing blade group moves to drive the angle of the pressure stabilizing blade group to change, so that the change of the suction force in the flue 1 of the gas boiler is caused, and the retention time of the flue gas is changed. And one end of the pressure stabilizing blade group is rotationally connected with the nut seat of the screw rod 15, and the rotating block 141 is rotationally connected with the other end of the pressure stabilizing blade group, so that the position movement and the angle change of the pressure stabilizing blade group are not influenced.

In this embodiment, a support plate 18 is fixedly installed at one end of the flue 1 of the gas boiler near the second bevel gear 16, and the connecting rod 14 passes through a through hole 181 on the support plate 18 and is rotatably connected with the side wall of the through hole 181.

In actual use, the support plate 18 is arranged to maintain stability during rotation of the connecting rod 14 and thus of the second bevel gear 16.

In this embodiment, one end of the pressure stabilizing blade set is rotatably connected with a first connecting shaft 191, the first connecting shaft 191 is fixedly connected with a nut seat of the screw rod 15, the other end of the pressure stabilizing blade set is rotatably connected with a second connecting shaft 192, and the second connecting shaft 192 is fixedly connected with the rotating block 141.

In practical use, when the nut seat of the lead screw 15 moves, the first connecting shaft 191 is driven to move, the angle of the voltage stabilizing blade group is driven to change by the movement of the first connecting shaft 191, and the arrangement of the first connecting shaft 191 and the second connecting shaft 192 not only has the function of fixing the two ends of the voltage stabilizing blade group, but also does not influence the angle change of the voltage stabilizing blade group.

In this embodiment, a sliding rod 17 is disposed above the pressure stabilizing blade set, the sliding rod 17 is fixedly connected to the upper side of the flue 1 of the gas boiler through two fixing blocks 173, the sliding rod 17 is provided with a sliding block 171 and a limiting block 172, the sliding block 171 is slidably connected to the sliding rod 17, the limiting block 172 is fixedly connected to the sliding rod 17, the sliding block 171 is fixedly connected to the top end of the first connecting shaft 191, and the limiting block 172 is fixedly connected to the top end of the second connecting shaft 192.

In practical use, when the nut seat of the lead screw 15 moves and drives the first connecting shaft 191 to move, the sliding block 171 is driven to move along the sliding rod 17, so that stability of the first connecting shaft 191 in the process of sliding the top end and the bottom end is maintained, and stability of the pressure stabilizing blade group in the process of moving can be enhanced under the matching action of the second connecting shaft 192 and the limiting block 172. In order to reduce the frictional force between the slide block 171 and the slide lever 17, the connecting surface between the slide block 171 and the slide lever 17 is a smooth surface.

In the present embodiment, the vane group includes a plurality of vanes 19, the vanes 19 are connected by hinges, the first connecting shaft 191 is rotatably connected to the edge of the vane 19 at one end, and the second connecting shaft 192 is rotatably connected to the edge of the vane 19 at the other end.

In practical use, when the first connecting shaft 191 moves, the angles between the plurality of blades 19 change accordingly, and the first connecting shaft 191 and the second connecting shaft 192 are connected with the rotation of the blades 19 without affecting the angle change of the blades 19.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.