Power assisting device on fan outlet check valve

Abstract

The invention relates to the technical field of check valves, in particular to a power assisting device on a fan outlet check valve, a first opening assembly comprises a containing piece, a first connecting piece and a first starting piece, and the first starting piece is arranged on the first connecting piece; the supporting assembly comprises a first bearing part and a first fixing part, and the first fixing part is arranged on the first bearing part; the second opening assembly comprises a second connecting piece, a second starting piece, a second bearing piece and a second fixing piece, the second connecting piece and the second bearing piece are arranged on the containing piece, the second starting piece is arranged on the second connecting piece, and the first opening assembly, the supporting assembly and the second opening assembly are matched with one another, so that the second opening assembly is opened. The occupied space for installing high-power actuators is saved, the multiple actuators act at the same time, opening of a check valve is facilitated, the oil feeding combustion-supporting time and the oil consumption when a fan is combined can be effectively shortened, and unit unsafe incidents caused in the load lifting operation process are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of non-return valves, and in particular to a booster device on a non-return valve at a fan outlet. Background Art

[0002] The check valve at the induced draft fan outlet is mainly driven by the center shaft, and the cylinder drives the center shaft to rotate, thereby realizing the opening and closing of the check valve. During the opening and closing process, the check valve not only bears the resistance of the flue system, but also bears its own gravity when installed in the vertical flue position. However, it is designed for horizontal installation. During the operation of the unit, the vertically installed check valve cannot be opened normally, and the unit load needs to be reduced (reducing the resistance of the baffle outlet), which increases the unsafe events of the unit caused by the lifting and lowering load operation. At the same time, when the fan is combined, in order to stabilize the combustion, the fuel consumption and the time of oil injection combustion are increased. In addition, the actuator is installed on the flue, which will limit the space and there is not enough space to install a high-power pneumatic actuator.

[0003] If no modification is carried out, when the fan stops operating due to a fault and is restarted, the flue gas volume needs to be reduced and the load dropped to about 10%. Fuel will need to be added for stable combustion and the unit load (power generation) will need to be reduced, reducing the operating economy. Summary of the invention

[0004] In view of the above-mentioned existing problems that when fans are combined, in order to stabilize combustion, the fuel consumption and the time of adding oil to assist combustion are increased, and the actuator is installed on the flue, which will limit the space and there is not enough space to install a high-power pneumatic actuator, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a booster device on a blower outlet check valve.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a booster device on a non-return valve at a fan outlet, comprising:

[0007] A first opening component comprises a receiving member, a first connecting member and a first starting member, wherein the first connecting member is arranged on the receiving member, and the first starting member is arranged on the first connecting member;

[0008] A supporting assembly, comprising a first bearing member and a first fixing member, wherein the first bearing member is disposed on the accommodating member, and the first fixing member is disposed on the first bearing member; and

[0009] The second opening component includes a second connecting member, a second starting member, a second supporting member and a second fixing member, wherein the second connecting member is arranged on the accommodating member, the second starting member is arranged on the second connecting member, the second supporting member is arranged on the accommodating member, and the second fixing member is arranged on the second supporting member.

[0010] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the accommodating member includes a first door body and a second door body, and the first door body and the second door body are both semicircular structures and are symmetrically arranged.

[0011] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the first connecting member includes a first central axis and a first connecting rod, there are two first central axes, which are respectively fixedly connected to one side of the first door body and the second door body, and there are two first connecting rods, which are respectively movably connected to each of the first central axes.

[0012] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the first starting member includes a first left-side pneumatic actuator and a first right-side pneumatic actuator, the first left-side pneumatic actuator is fixedly connected to one of the first connecting rods, and the first right-side pneumatic actuator is fixedly connected to the other first connecting rod.

[0013] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the first bearing member includes a first support rod fixedly connected to the first door body and the second door body, wherein a second support rod is arranged at a symmetrical position of the first support rod, the second support rod is fixedly connected to the other side of the first door body and the second door body, a first bearing plate is fixedly connected to the first support rod and the second support rod, and the number of the first support rod, the second support rod and the first bearing plate is two.

[0014] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the first fixing member includes a first left-side fixing block and a first right-side fixing block, the first left-side fixing block is fixedly connected to one of the first supporting plates, the first right-side fixing block is fixedly connected to the other first supporting plate, and one side of the first left-side fixing block is also fixedly connected to the first left-side pneumatic actuator, and one side of the first right-side fixing block is fixedly connected to the first right-side pneumatic actuator.

[0015] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the second connecting member includes a second center axis and a second connecting rod, and the number of the second center axis is two, which are respectively fixedly connected to the first door body and the other side of the second door body, and the number of the second connecting rod is two, which are respectively movably connected to the second center axis.

[0016] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the second starting member includes a second left-side pneumatic actuator and a second right-side pneumatic actuator, the second left-side pneumatic actuator is fixedly connected to one of the second connecting rods, and the second right-side pneumatic actuator is fixedly connected to the other second connecting rod.

[0017] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the second bearing member includes a third support rod fixedly connected to the first door body and the second door body, wherein a fourth support rod is arranged at a symmetrical position of the third support rod, the fourth support rod is fixedly connected to the other side of the first door body and the second door body, and a second bearing plate is fixedly connected to the third support rod and the fourth support rod, and the number of the third support rod, the fourth support rod and the second bearing plate is two.

[0018] As a preferred solution of the power assist device on the fan outlet check valve of the present invention, the second fixing member includes a second left-side fixing block and a second right-side fixing block, the second left-side fixing block is fixedly connected to one of the second supporting plates, the second right-side fixing block is fixedly connected to the other second supporting plate, and one side of the second left-side fixing block is also fixedly connected to the second left-side pneumatic actuator, and one side of the second right-side fixing block is fixedly connected to the second right-side pneumatic actuator.

[0019] The beneficial effects of the present invention are as follows: through the mutual cooperation between the first opening component, the supporting component and the second opening component, the space occupied by installing a high-power actuator is saved, and maintenance, lifting and installation are convenient; multiple actuators act simultaneously, so that the shaft is evenly stressed and the torque transmitted to the shaft is doubled, which is more conducive to the opening of the check valve, and can effectively reduce the oil injection and combustion time and oil consumption when the fans are connected, and reduce the unsafe incidents of the unit caused during the load lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The figure is a schematic diagram of the overall structure of a power assist device on a non-return valve at a fan outlet according to the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Example 1

[0027] Reference Figure 1 , which is the first embodiment of the present invention, provides a power assist device on a fan outlet check valve, the device comprising a first opening component 100, including a receiving member 101, a first connecting member 102 and a first starting member 103, the first connecting member 102 is arranged on the receiving member 101, and the first starting member 103 is arranged on the first connecting member 102.

[0028] Specifically, the container 101 includes a first door body 101a and a second door body 101b, wherein the first door body 101a and the second door body 101b are both semicircular structures and are symmetrically arranged.

[0029] Furthermore, the first connecting member 102 includes a first central axis 102a and a first connecting rod 102b. There are two first central axes 102a, which are fixedly connected to one side of the first door body 101a and the second door body 101b respectively. There are two first connecting rods 102b, which are movably connected to each of the first central axes 102a.

[0030] Furthermore, the first starter 103 includes a first left-side pneumatic actuator 103a and a first right-side pneumatic actuator 103b, wherein the first left-side pneumatic actuator 103a is fixedly connected to one of the first connecting rods 102b, and the first right-side pneumatic actuator 103b is fixedly connected to the other first connecting rod 102b.

[0031] During operation, first, start the first left pneumatic actuator 103a and the first right pneumatic actuator 103b. These two actuators are fixed on the two first connecting rods 102b respectively. As the pneumatic actuators are started, they will drive the first connecting rods 102b connected to them to move. Since the first connecting rod 102b is movably connected to the first central axis 102a, the movement of the connecting rod will drive the first central axis 102a to rotate. The rotation of the first central axis 102a will cause the first door body 101a and the second door body 101b (two semicircular door bodies) to rotate around the central axis. When the two door bodies rotate to a certain angle, they will form a channel to achieve an open state; on the contrary, when the door body rotates back to the initial position, the channel is closed. Once the door body reaches the desired open or closed position, the pneumatic actuator is stopped to maintain the current state of the door body. This process can be achieved through an automated control system, making the operation more convenient and precise.

[0032] Example 2

[0033] Reference Figure 1 , which is the first embodiment of the present invention, provides a power assist device on a fan outlet check valve, the device includes a support assembly 200, including a first bearing member 201 and a first fixing member 202, the first bearing member 201 is arranged on the accommodating member 101, and the first fixing member 202 is arranged on the first bearing member 201.

[0034] Specifically, the first supporting member 201 includes a first support rod 201a fixedly connected to the first door body 101a and the second door body 101b, wherein a second support rod 201b is arranged at a symmetrical position of the first support rod 201a, the second support rod 201b is fixedly connected to the other side of the first door body 101a and the second door body 101b, and a first supporting plate 201c fixedly connected to the first support rod 201a and the second support rod 201b, and the number of the first support rod 201a, the second support rod 201b and the first supporting plate 201c is two.

[0035] Furthermore, the first fixing member 202 includes a first left-side fixing block 202a and a first right-side fixing block 202b, the first left-side fixing block 202a is fixedly connected to one of the first supporting plates 201c, the first right-side fixing block 202b is fixedly connected to the other first supporting plate 201c, and one side of the first left-side fixing block 202a is also fixedly connected to the first left-side pneumatic actuator 103a, and one side of the first right-side fixing block 202b is fixedly connected to the first right-side pneumatic actuator 103b.

[0036] During operation, the first support rod 201a and the second support rod 201b are matched with the first supporting plate 201c so that the first left fixed block 202a and the first right fixed block 202b can be installed and fixed thereon, and the first left pneumatic actuator 103a and the first right pneumatic actuator 103a can be fixed on the first left fixed block 202a and the first right fixed block 202b to assist the normal operation of the entire device.

[0037] Example 3

[0038] Reference Figure 1 , which is the first embodiment of the present invention, provides a power assist device on a fan outlet check valve, the device comprising a second opening assembly 300, comprising a second connecting member 301, a second starting member 302, a second bearing member 303 and a second fixing member 304, the second connecting member 301 is arranged on the accommodating member 101, the second starting member 302 is arranged on the second connecting member 301, the second bearing member 303 is arranged on the accommodating member 101, and the second fixing member 304 is arranged on the second bearing member 303.

[0039] Specifically, the second connecting member 301 includes a second central axis 301a and a second connecting rod 301b. There are two second central axes 301a, which are respectively fixedly connected to the other side of the first door body 101a and the second door body 101b. There are two second connecting rods 301b, which are respectively movably connected to the second central axis 301a.

[0040] Furthermore, the second starting member 302 includes a second left-side pneumatic actuator 302a and a second right-side pneumatic actuator 302b. The second left-side pneumatic actuator 302a is fixedly connected to one of the second connecting rods 301b, and the second right-side pneumatic actuator 302b is fixedly connected to the other second connecting rod 301b.

[0041] Furthermore, the second supporting member 303 includes a third support rod 303a fixedly connected to the first door body 101a and the second door body 101b, wherein a fourth support rod 303b is arranged at a symmetrical position of the third support rod 303a, and the fourth support rod 303b is fixedly connected to the other side of the first door body 101a and the second door body 101b, and a second supporting plate 303c is fixedly connected to the third support rod 303a and the fourth support rod 303b, and the number of the third support rod 303a, the fourth support rod 303b and the second supporting plate 303c is two.

[0042] Furthermore, the second fixing member 304 includes a second left-side fixing block 304a and a second right-side fixing block 304b, the second left-side fixing block 304a is fixedly connected to one of the second supporting plates 303c, the second right-side fixing block 304b is fixedly connected to the other second supporting plate 303c, and one side of the second left-side fixing block 304a is also fixedly connected to the second left-side pneumatic actuator 302a, and one side of the second right-side fixing block 304b is fixedly connected to the second right-side pneumatic actuator 302b.

[0043] During operation, the second left pneumatic actuator 302a and the second right pneumatic actuator 302b are fixed on the second left fixed block 304a and the second right fixed block 304b respectively. As the second left pneumatic actuator 302a and the second right pneumatic actuator 302b are started, they will drive the second connecting rod 301b connected to each other to move. Since the second connecting rod 301b is movably connected to the second central axis 301a, the movement of the connecting rod will drive the second central axis 301a to rotate. The rotation of the second central axis 301a will cause the first door body 101a and the second door body 101b to rotate around the second central axis 301a. When the two door bodies rotate to a certain angle, they will form a On the contrary, when the door body rotates back to the initial position, the channel is closed, and at the same time, the second left fixed block 304a and the second right fixed block 304b will move along the third support rod 303a and the fourth support rod 303b, because they are respectively fixedly connected to the second bearing plate 303c, the second left pneumatic actuator 302a and the second right pneumatic actuator 302b not only drive the connecting rod to move, but also assist the normal operation of the entire device to ensure the smooth opening and closing of the door body. When the door body moves to the desired position (fully opened or fully closed), the pneumatic actuator is stopped to maintain the current state of the door body, and after the door body is fully opened or closed, it is ensured that it remains stable in the desired position;

[0044] Because the actuator needs to be supported when installed, the space occupied by installing high-power actuators is saved, and it is convenient for maintenance, lifting and installation; the two actuators act at the same time, so that the shaft is evenly stressed and the torque transmitted to the shaft is doubled, which is more conducive to the opening of the check valve. The device can be started at a load of more than 50% and does not require the input of fuel for stable combustion, which greatly improves the unit's operating economy and the safety of the equipment.

[0045] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values, mounting arrangements, use of materials, colors, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or device steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, improvements, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A booster device on a non-return valve at a fan outlet, characterized in that: include, A first opening component (100) comprises a receiving component (101), a first connecting component (102) and a first starting component (103), wherein the first connecting component (102) is arranged on the receiving component (101), and the first starting component (103) is arranged on the first connecting component (102); A supporting assembly (200) comprises a first bearing member (201) and a first fixing member (202), wherein the first bearing member (201) is arranged on the accommodating member (101), and the first fixing member (202) is arranged on the first bearing member (201); and, The second opening component (300) comprises a second connecting member (301), a second starting member (302), a second supporting member (303) and a second fixing member (304), wherein the second connecting member (301) is arranged on the accommodating member (101), the second starting member (302) is arranged on the second connecting member (301), the second supporting member (303) is arranged on the accommodating member (101), and the second fixing member (304) is arranged on the second supporting member (303).

2. The booster device on the non-return valve at the fan outlet according to claim 1 is characterized in that: The accommodating member (101) comprises a first door body (101a) and a second door body (101b); the first door body (101a) and the second door body (101b) are both semicircular structures and are symmetrically arranged.

3. The booster device on the non-return valve at the fan outlet according to claim 2 is characterized in that: The first connecting member (102) includes a first central axis (102a) and a first connecting rod (102b). There are two first central axes (102a), which are respectively fixedly connected to one side of the first door body (101a) and the second door body (101b). There are two first connecting rods (102b), which are respectively movably connected to each of the first central axes (102a).

4. The booster device on the non-return valve at the fan outlet according to claim 3 is characterized in that: The first starting member (103) comprises a first left-side pneumatic actuator (103a) and a first right-side pneumatic actuator (103b), wherein the first left-side pneumatic actuator (103a) is fixedly connected to one of the first connecting rods (102b), and the first right-side pneumatic actuator (103b) is fixedly connected to the other first connecting rod (102b).

5. The booster device on the non-return valve at the fan outlet according to claim 4 is characterized in that: The first supporting member (201) includes a first support rod (201a) fixedly connected to the first door body (101a) and the second door body (101b), wherein a second support rod (201b) is arranged at a symmetrical position of the first support rod (201a), the second support rod (201b) is fixedly connected to the other side of the first door body (101a) and the second door body (101b), and a first supporting plate (201c) fixedly connected to the first support rod (201a) and the second support rod (201b), and the number of the first support rod (201a), the second support rod (201b) and the first supporting plate (201c) is two.

6. The booster device on the non-return valve at the fan outlet according to claim 5, characterized in that: The first fixing member (202) comprises a first left-side fixing block (202a) and a first right-side fixing block (202b); the first left-side fixing block (202a) is fixedly connected to one of the first supporting plates (201c); the first right-side fixing block (202b) is fixedly connected to the other first supporting plate (201c); one side of the first left-side fixing block (202a) is also fixedly connected to the first left-side pneumatic actuator (103a); and one side of the first right-side fixing block (202b) is fixedly connected to the first right-side pneumatic actuator (103b).

7. The booster device on the non-return valve at the fan outlet according to claim 5 or 6, characterized in that: The second connecting member (301) includes a second central axis (301a) and a second connecting rod (301b). The second central axis (301a) is provided in two pieces and is respectively fixedly connected to the first door body (101a) and the other side of the second door body (101b). The second connecting rod (301b) is provided in two pieces and is respectively movably connected to the second central axis (301a).

8. The booster device on the non-return valve at the fan outlet according to claim 7, characterized in that: The second starting member (302) comprises a second left-side pneumatic actuator (302a) and a second right-side pneumatic actuator (302b), wherein the second left-side pneumatic actuator (302a) is fixedly connected to one of the second connecting rods (301b), and the second right-side pneumatic actuator (302b) is fixedly connected to the other second connecting rod (301b).

9. The booster device on the non-return valve at the fan outlet according to claim 8, characterized in that: The second supporting member (303) includes a third support rod (303a) fixedly connected to the first door body (101a) and the second door body (101b), wherein a fourth support rod (303b) is arranged at a symmetrical position of the third support rod (303a), and the fourth support rod (303b) is fixedly connected to the other side of the first door body (101a) and the second door body (101b), and a second supporting plate (303c) fixedly connected to the third support rod (303a) and the fourth support rod (303b), and the number of the third support rod (303a), the fourth support rod (303b) and the second supporting plate (303c) is two.

10. The booster device on the non-return valve at the fan outlet according to claim 9, characterized in that: The second fixing member (304) comprises a second left-side fixing block (304a) and a second right-side fixing block (304b); the second left-side fixing block (304a) is fixedly connected to one of the second supporting plates (303c); the second right-side fixing block (304b) is fixedly connected to the other second supporting plate (303c); one side of the second left-side fixing block (304a) is also fixedly connected to the second left-side pneumatic actuator (302a); and one side of the second right-side fixing block (304b) is fixedly connected to the second right-side pneumatic actuator (302b).

Images