Deaerator

Abstract

The utility model relates to the technical field of deoxidizing equipment, in particular to a deaerator which comprises a barrel, the barrel is provided with a hollow containing cavity, and a steam exhaust connector communicated with the containing cavity is arranged at the top end of the barrel. The manhole door is arranged on the cylinder body, and the manhole door can be opened or closed relative to the cylinder body; the film lifting device is arranged in the accommodating cavity, and is positioned above the manhole door; the water grate is arranged in the containing cavity, and the water grate can move in the axial direction of the barrel body; and the filling liquid and steam net is arranged in the accommodating cavity, and the filling liquid and steam net is positioned below the water grate. According to the utility model, the labor intensity of maintainers can be reduced while the silk screen can be conveniently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen removal equipment technical field especially relates to a deaerator. BACKGROUND

[0002] The deaerator is one of important equipment in the industrial field of electric power, chemical industry and the like, and its main function is to remove oxygen and other corrosive gases from the boiler feed water to prevent the boiler from being corroded. Meanwhile, the deaerator can improve the quality of the boiler water and reduce the content of other gases in the boiler water, such as carbon dioxide, so as to further improve the quality of the boiler water. The deaerator is mainly composed of a gas distribution disc, a filler liquid vapor net, a water grate, a film former and the like. When the deaerator is overhauled, there are holes in the silk screen of the filler liquid vapor net, so the replacement of the silk screen is a necessary overhaul item, and the water grate above the silk screen is rarely damaged, so the water grate fixedly installed in the deaerator needs to be cut off every time the silk screen is replaced, and a new water grate is installed again after the replacement of the silk screen is completed. In the above manner, the material of the water grate is wasted, and the labor intensity of the overhaul personnel is large.

[0003] Therefore, there is a need for a deaerator to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of deaerator, it can be convenient to replace silk screen, while reduce the labor intensity of overhaul personnel.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The deaerator comprises:

[0007] The cylinder body has a hollow accommodating cavity, and a steam discharge interface is arranged at the top end of the cylinder body and communicates with the accommodating cavity;

[0008] The manhole door is arranged on the cylinder body, and the manhole door can be opened or closed relative to the cylinder body;

[0009] The film former is arranged in the accommodating cavity and above the manhole door;

[0010] The water grate is arranged in the accommodating cavity, and the water grate can move along the axial direction of the cylinder body;

[0011] The filler liquid vapor net is arranged in the accommodating cavity and below the water grate.

[0012] In some embodiments, a guide assembly is further included, which is arranged between the cylinder body and the water grate along the axial direction of the cylinder body, and the water grate can slide relative to the cylinder body through the guide assembly.

[0013] In some embodiments, edges of the water grate are provided with sliding grooves, the guide assembly comprises guide rails fixedly arranged on the inner wall of the cylinder along the axial direction of the cylinder, and the guide rails are matched with the sliding grooves.

[0014] In some embodiments, the guide assembly comprises at least two guide rails, the at least two guide rails are arranged along the circumferential direction of the cylinder at intervals, and the water grate is provided with at least two sliding grooves corresponding to the guide rails.

[0015] In some embodiments, the installation assembly is arranged on the inner wall of the cylinder, and the water grate is clamped on the installation assembly.

[0016] In some embodiments, the installation assembly comprises a support frame fixedly arranged in the cylinder and a positioning member detachably connected with the cylinder, and the water grate is clamped between the support frame and the positioning member.

[0017] In some embodiments, the water grate is provided with a lifting hole.

[0018] In some embodiments, a plug is detachably arranged at the lifting hole.

[0019] In some embodiments, the steam-water separator is arranged in the accommodating cavity and located at the steam outlet.

[0020] In some embodiments, the gas distribution disc is arranged in the accommodating cavity and located below the packing liquid-vapor net.

[0021] The utility model discloses a beneficial effect:

[0022] The utility model provides a kind of deaerator, cylinder has hollow accommodating cavity, is provided with the steam outlet with accommodating cavity communication in cylinder top portion, is provided with manhole door on cylinder, is provided with film former, water grate and packing liquid-vapor net in cylinder.The film former is located above manhole door, and water grate and packing liquid-vapor net are located below manhole door.When deaerator is overhauled, since water grate can be moved along the axial direction of cylinder, water grate is pulled to the above manhole door by maintenance personnel, then it is entered into cylinder interior by manhole door to replace the wire mesh of packing liquid-vapor net.After completion replacement, maintenance personnel comes out from cylinder, and releases water grate to the installation position below manhole door, and can be replaced wire mesh under the premise of not damaging water grate, and the labor intensity of maintenance personnel can be reduced by the above-mentioned mode. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the contents of the embodiments of the present application and the drawings without creative labor.

[0024] Fig. 1 is a sectional view of the oxygen remover of the present application;

[0025] Fig. 2 is a schematic view of the water grate in the oxygen remover of the present application.

[0026] In the drawings:

[0027] 1, cylinder; 11, exhaust port; 12, safety valve port; 2, manhole door; 3, film former; 4, water grate; 41, mounting ring; 42, lifting hole; 43, sliding groove; 5, filler liquid-vapor net; 51, wire mesh; 6, guide assembly; 61, guide rail; 7, gas distribution disc; 8, steam-water separator; 9, positioning member. DETAILED DESCRIPTION

[0028] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings.

[0029] In the present application, the terms "comprising", "containing", "having" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0030] In the present application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection refers to the connection of two parts or components without the need for an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0031] In this application, it will be understood by those of ordinary skill in the art that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts.

[0032] In this application, the terms "upper", "lower", "left", "right", "front", "back", and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, the left below, the right below, the front below, and the back below, etc.

[0033] When the deaerator is overhauled, in order to facilitate the replacement of the wire mesh while reducing the labor intensity of the overhaul personnel, as shown in Figs. 1-2 The utility model provides a kind of deaerator. Deaerator includes cylinder 1, manhole door 2, membrane former 3, water strainer 4 and filler liquid vapor net 5.

[0034] Wherein, cylinder 1 has hollow containing cavity, and the steam outlet interface 11 that is communicated with containing cavity is arranged at the top end of cylinder 1. Manhole door 2 is arranged on cylinder 1, and manhole door 2 can be opened or closed relative to cylinder 1. Membrane former 3 is arranged in containing cavity, and is located above manhole door 2. Water strainer 4 is arranged in containing cavity, and water strainer 4 can move along the axial direction of cylinder 1. Filler liquid vapor net 5 is arranged in containing cavity, and filler liquid vapor net 5 is located below water strainer 4.

[0035] In the process of deaerator working, after feed water enters the water chamber of membrane former 3, high-speed jet is formed by the jet flow hole on the membrane forming pipe of membrane former 3 under the action of pressure difference, spiral water film skirt is formed along the inner wall of membrane forming pipe, and steam rising at the bottom of cylinder 1 is rolled and sucked, is heated quickly to near saturation temperature, and dissolved oxygen is precipitated due to pressure reduction, and is discharged through steam outlet interface 11. Water strainer 4 located below membrane former 3 is responsible for distributing the water after preliminary deaeration into uniform rain-like water flow, to enhance the contact with steam. Filler liquid vapor net 5 is arranged below water strainer 4, and water flow is further dispersed into extremely thin water film by high specific surface area and surface tension effect, to realize deep deaeration.

[0036] When the deaerator works for a certain period of time, the wire mesh 51 of the filler liquid-steam net 5 is prone to breakage. When replacing the wire mesh 51, since the water grate 4 can move along the axial direction of the cylinder 1, the maintenance personnel pull the water grate 4 up to above the manhole door 2, and then enter the inside of the cylinder 1 through the manhole door 2 to replace the wire mesh 51 of the filler liquid-steam net 5. After the replacement is completed, the maintenance personnel come out of the cylinder 1, and release the water grate 4 to the installation position below the manhole door 2. In the above manner, the wire mesh 51 can be replaced conveniently without damaging the water grate 4, and the labor intensity of the maintenance personnel can be reduced.

[0037] In some embodiments, the deaerator further comprises a guide assembly 6, which is arranged between the cylinder 1 and the water grate 4 along the axial direction of the cylinder 1, and the water grate 4 can slide relative to the cylinder 1 through the guide assembly 6. By arranging the guide assembly 6 to guide the movement of the water grate 4, it is prevented that the water grate 4 is stuck with the inner edge of the cylinder 1 during the movement of the water grate 4, and the water grate 4 is smoothly lifted during the maintenance process.

[0038] In some embodiments, the edge of the water grate 4 is provided with a sliding groove 43, and the guide assembly 6 comprises a guide rail 61, which is fixedly arranged on the inner wall of the cylinder 1 along the axial direction of the cylinder 1, and cooperates with the sliding groove 43. During the movement of the water grate 4, the pull rope is extended into the water grate 4 through the safety valve interface 12 at the top of the cylinder 1, and then the water grate 4 is lifted. During the lifting of the water grate 4, the water grate 4 cooperates with the guide rail 61 through the sliding groove 43, so that the water grate 4 can only move along the extension direction of the guide rail 61, thereby preventing the water grate 4 from tilting or rotating relative to the cylinder 1, and ensuring the smooth movement of the water grate 4. In other embodiments, the sliding groove 43 can also be arranged on the inner wall of the cylinder 1, and a sliding block is arranged on the water grate 4 and slidably arranged in the sliding groove 43, which also has a guiding effect. Moreover, the frictional resistance of the movement of the water grate 4 can be reduced, the water grate 4 is prevented from colliding and rubbing with the cylinder 1, and the service life of the water grate 4 is ensured.

[0039] In some embodiments, the water grate 4 has a mounting ring 41 in the circumferential direction, and the mounting ring 41 is recessed inward to form the sliding groove 43, which facilitates cooperation with the guide rail 61 and does not affect the uniform distribution of steam by the water grate 4.

[0040] In some embodiments, the guide assembly 6 comprises at least two guide rails 61, which are arranged at intervals along the circumference of the cylinder 1. The water grate 4 is provided with at least two sliding grooves 43, which are arranged one by one with the guide rails 61. Specifically, in the present embodiment, two guide rails 61 are arranged, and the two guide rails 61 are distributed at intervals of 180°. Through the above arrangement, it can be ensured that the water grate 4 is in a horizontal state, and during the lifting movement of the water grate 4, tilting is avoided. In other embodiments, the number of guide rails 61 arranged can also be determined according to actual needs, and no more limitations are made here.

[0041] In some embodiments, the deaerator further comprises a mounting assembly arranged on the inner wall of the cylinder 1, and the water grate 4 is clamped on the mounting assembly. By arranging the mounting assembly to lock the position of the water grate 4, the installation position of the water grate 4 can be ensured unchanged when the water grate 4 is subjected to the upward force caused by the steam and water pressure.

[0042] In some embodiments, the mounting assembly comprises a support frame and a positioning piece 9, the support frame is fixedly arranged in the cylinder 1, the positioning piece 9 is detachably connected with the cylinder 1, and the water grate 4 is clamped between the support frame and the positioning piece 9. The support frame is welded in the cylinder 1, and the support frame is used to support and position the water grate 4. The positioning piece 9 is a horizontal positioning pin, which is inserted into the cylinder 1 to limit the water grate 4. When it is necessary to move the water grate 4, the horizontal positioning pin only needs to be removed, and then the water grate 4 can be moved. After the replacement of the wire mesh 51 is completed, the water grate 4 is lowered and supported on the support frame, and then the horizontal positioning pin is inserted into the cylinder 1. Specifically, the insertion hole matched with the horizontal positioning pin can be arranged on the cylinder 1 or the guide rail 61, and no more limitations are made here. In other embodiments, the positioning piece 9 can be a bolt, which is screwed through the water grate 4 and the threaded hole on the support frame, and can also play a role in fixing and clamping the water grate 4.

[0043] In some embodiments, the water grate 4 is provided with a lifting hole 42. By arranging the lifting hole 42, a lifting ring is arranged at the lifting hole 42 during the maintenance of the deaerator, and the water grate 4 is lifted by connecting the lifting ring with a chain hoist. The water grate 4 is moved upwardly to above the manhole door 2, so that the maintenance personnel can enter the cylinder 1 through the manhole door 2 to work. After the maintenance is completed, the water grate 4 is reset, and then the lifting ring is removed. Through the above arrangement, the water grate 4 can be easily lifted and moved.

[0044] In some embodiments, a plug is detachably arranged at the lifting hole 42. By arranging the plug, the lifting hole 42 is prevented from being corroded by the steam and water during the normal operation of the deaerator.

[0045] In some embodiments, the deaerator further comprises a steam-water separator 8, which is arranged in the accommodating cavity and located at the steam exhaust interface 11. The steam-water separator 8 is used to separate water in the oxygen-exhausted steam, so as to reduce heat loss.

[0046] In some embodiments, the deaerator further comprises a gas distribution plate 7, which is arranged in the accommodating cavity and located below the packing liquid-vapor net 5. Specifically, the gas distribution plate 7 adopts a regular and uniform hole structure, so as to ensure that the heated steam uniformly rises and contacts with the water flow in countercurrent, thereby avoiding local concentration of the steam.

[0047] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An oxygen scavenger, characterized by, The utility model relates to a steam generator, which comprises: a cylinder (1) having a hollow accommodating cavity, a steam outlet (11) being arranged at the top end of the cylinder (1) and communicating with the accommodating cavity; a manhole door (2) arranged on the cylinder (1) and capable of being opened or closed relative to the cylinder (1); a film former (3) arranged in the accommodating cavity and above the manhole door (2); a water strainer (4) arranged in the accommodating cavity and capable of moving along the axial direction of the cylinder (1); a filler liquid-steam net (5) arranged in the accommodating cavity and below the water strainer (4).

2. The deaerator of claim 1, wherein The utility model further comprises a guide assembly (6) arranged between the cylinder (1) and the water strainer (4) along the axial direction of the cylinder (1), and the water strainer (4) is capable of sliding relative to the cylinder (1) through the guide assembly (6).

3. The deaerator of claim 2, wherein, The edge of the water strainer (4) is provided with a sliding groove (43), and the guide assembly (6) comprises a guide rail (61) fixedly arranged on the inner wall of the cylinder (1) along the axial direction of the cylinder (1) and matched with the sliding groove (43).

4. The deaerator of claim 3, wherein The guide assembly (6) comprises at least two guide rails (61) arranged at intervals along the circumferential direction of the cylinder (1), and the water strainer (4) is provided with at least two sliding grooves (43) arranged one by one with the guide rails (61).

5. The deaerator of claim 1, wherein The utility model further comprises a mounting assembly clamped on the inner wall of the cylinder (1), and the water strainer (4) is arranged on the mounting assembly.

6. The deaerator of claim 5, wherein, The mounting assembly comprises a support frame fixedly arranged in the cylinder (1) and a positioning member (9) detachably connected with the cylinder (1), and the water strainer (4) is clamped between the support frame and the positioning member (9).

7. The deaerator of claim 1, wherein The water strainer (4) is provided with a lifting hole (42).

8. The deaerator of claim 7, wherein, A plug is detachably arranged at the lifting hole (42).

9. The deaerator of claim 1, wherein, The utility model further comprises a steam-water separator (8) arranged in the accommodating cavity and at the steam outlet (11).

10. The deaerator of claim 1, wherein The utility model further comprises a gas distribution disc (7) arranged in the accommodating cavity and below the filler liquid-steam net (5).

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