Composite furnace door structure of waste heat boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a composite furnace door structure of a waste heat boiler, which comprises a fixed frame, a door plate, a fixed component, a rotating component and a mounting component. The fixing assembly comprises two fixing seats, two rotating lead screws, a lead screw sleeve and a positioning pin, the two fixing seats are fixedly connected with the door plate and located on the front face of the door plate, the two rotating lead screws are slidably connected with the fixing seats respectively, the lead screw sleeve is in threaded connection with the rotating lead screws, and the positioning pin is located on the right side of the door plate. The number of the positioning pins is two, the two positioning pins are fixedly connected with the rotating lead screw, the rotating assembly and the mounting assembly are connected with the fixing frame, and the problems that when the composite furnace door structure of the waste heat boiler is used, the furnace door panel is inconvenient to fix, the furnace door panel is prone to loosening, and the sealing effect of the furnace door panel is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a composite furnace door structure of a waste heat boiler. Background Art

[0002] The furnace doors of conventional boilers are mostly arched furnace doors made of ordinary cast iron, and their maximum heat resistance temperature is around 450°C. However, the maximum temperature of the inlet flue gas of some waste heat boilers often reaches above 500°C. Therefore, the arched furnace doors made of ordinary cast iron are very likely to be severely deformed due to high temperature, making it impossible to guarantee the sealing performance of the boiler, causing various safety hazards.

[0003] The existing announcement number CN205825102U discloses a composite furnace door structure for a waste heat boiler, which can solve the problem that ordinary cast iron arch furnace doors are deformed and cannot ensure the sealing of the boiler due to the limit temperature not meeting the requirements. It includes a furnace door frame and a furnace door panel. The rear end of the furnace door frame is provided with continuously connected blocking strips around. The furnace door frame is densely filled with high-strength refractory concrete brick layers, refractory layers and insulation layers from back to front in sequence and is sealed from the front side of the furnace door frame through the furnace door panel. The rear end surface of the high-strength refractory concrete brick layer is limited by the blocking strip.

[0004] However, when the composite furnace door structure of the waste heat boiler is in use, it is not convenient to fix the furnace door panel, and the furnace door panel is easy to loosen, resulting in poor sealing effect of the furnace door panel. Utility Model Content

[0005] The utility model aims to provide a composite furnace door structure for a waste heat boiler, which solves the problem that the composite furnace door structure of the waste heat boiler is inconvenient to fix the furnace door panel when in use, the furnace door panel is easy to loosen, resulting in poor sealing effect of the furnace door panel.

[0006] To achieve the above-mentioned objectives, the utility model provides a composite furnace door structure of a waste heat boiler, including a fixed frame and a door panel, the door panel is detachably connected to the fixed frame and is located inside the fixed frame, and also includes a fixed assembly, a rotating assembly and an installation assembly; the fixed assembly includes a fixed seat, a rotating screw rod, a screw rod sleeve and a positioning pin, the number of the fixed seats is two, the two fixed seats are respectively fixedly connected to the door panel and are respectively located on the front side of the door panel, the number of the rotating screw rods is two, the two rotating screw rods are respectively slidably connected to the fixed seats and respectively pass through the fixed seats, the screw rod sleeve is threadedly connected to the rotating screw rod and is located on the outside of the two rotating screw rods, the number of the positioning pins is two, the two positioning pins are respectively fixedly connected to the rotating screw rod and are respectively located on the side of the rotating screw rod away from the screw rod sleeve, and the rotating assembly and the installation assembly are respectively connected to the fixed frame.

[0007] Among them, the fixing assembly also includes a fixed hinge and a fixed rod. The number of the fixed hinges is two, and the two fixed hinges are respectively fixedly connected to the fixed frames and are respectively located on the front sides of the fixed frames. The number of the fixed rods is two, and one end of the two fixed frames is respectively rotatably connected to the fixed hinges, and the other ends of the two fixed frames are respectively slidably connected to the positioning pins.

[0008] Among them, the rotating assembly includes a connecting plate, a rotating plate and a connecting hinge. The number of the connecting plates is two, and the two connecting plates are respectively fixedly connected to the fixed frame and are respectively located at the bottom of the fixed frame. The number of the rotating plates is two, and the number of the connecting hinges is two, and the two rotating plates are respectively connected to the connecting plates through the connecting hinges.

[0009] Among them, the rotating assembly also includes a rotating seat and a rotating shaft. There are two rotating seats, and the two rotating seats are respectively fixedly connected to the door panels and are respectively located on the front sides of the door panels. There are two rotating shafts, and the two rotating shafts are respectively rotatably connected to the connecting plates and respectively pass through the rotating seats.

[0010] Wherein, the mounting assembly includes a mounting plate and mounting bolts, the number of the mounting plates is two, the two mounting plates are respectively fixedly connected to the fixing frame and are respectively located on both sides of the fixing frame, and the number of the mounting bolts is multiple, the multiple mounting bolts are respectively threadedly connected to the mounting plates and respectively pass through the mounting plates.

[0011] The utility model discloses a composite furnace door structure of a waste heat boiler, wherein the fixing frame provides a supporting function for the door panel, the door panel provides a sealing effect for the waste heat boiler, the fixing seat provides a supporting function for the rotating screw rod, the screw rod sleeve provides a limiting function for the rotating screw rod, and the positioning pin provides a fixing effect for the door panel. When the door panel is fixed, the screw rod sleeve is rotated to extend the rotating screw rods on both sides, and at the same time, the positioning pin is inserted into the interior of the fixing rod to achieve the fixing effect of the door panel. When the door panel needs to be pulled open, the screw rod sleeve is rotated to retract the rotating screw rods on both sides into the interior of the screw rod sleeve, and at the same time, the positioning pin is pulled out from the fixing rod, and the door panel is easily pulled open from the fixing frame through the screw rod sleeve, thereby solving the problem that the composite furnace door structure of the waste heat boiler is not convenient for fixing the furnace door panel when in use, the furnace door panel is easily loosened, and the sealing effect of the furnace door panel is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a composite furnace door structure of a waste heat boiler according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the fixing assembly of the first embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the rotating assembly of the first embodiment of the utility model.

[0016] Figure 4 It is a front view of a composite furnace door structure of a waste heat boiler according to the second embodiment of the utility model.

[0017] In the figure: 101-fixed frame, 102-door panel, 103-fixed seat, 104-rotating screw, 105-screw sleeve, 106-locating pin, 107-fixed hinge, 108-fixed rod, 109-connecting plate, 110-rotating plate, 111-connecting hinge, 112-rotating seat, 113-rotating shaft, 201-mounting plate, 202-mounting bolt. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the overall structure of a composite furnace door structure of a waste heat boiler in the first embodiment of the utility model. Figure 2 is a schematic structural diagram of a fixing assembly of the first embodiment of the utility model, Figure 3 It is a structural schematic diagram of the rotating component of the first embodiment of the utility model. The utility model provides a composite furnace door structure of a waste heat boiler, including a fixed frame 101, a door panel 102, a fixed component and a rotating component, the fixed component includes a fixed seat 103, a rotating screw 104, a screw sleeve 105, a positioning pin 106, a fixed hinge 107 and a fixed rod 108, and the rotating component includes a connecting plate 109, a rotating plate 110, a connecting hinge 111, a rotating seat 112 and a rotating shaft 113; the above-mentioned scheme solves the problem that the composite furnace door structure of the waste heat boiler is inconvenient to fix the furnace door panel during use, the furnace door panel is easy to loosen, and the sealing effect of the furnace door panel is poor. It can be understood that the above-mentioned scheme can be used in the scenario of fixing and sealing the furnace door of the waste heat boiler, and can also be used to solve the installation problem of the furnace door of the waste heat boiler.

[0021] According to this specific embodiment, the door panel 102 is detachably connected to the fixed frame 101 and is located inside the fixed frame 101. The number of the fixing seats 103 is two, and the two fixing seats 103 are respectively fixedly connected to the door panel 102 and are respectively located on the front side of the door panel 102. The number of the rotating screw rods 104 is two, and the two rotating screw rods 104 are respectively slidably connected to the fixing seats 103 and respectively pass through the fixing seats 103. The screw rod sleeve 105 is threadedly connected to the rotating screw rod 104 and is located on the outside of the two rotating screw rods 104. The number of the locating pins 106 is two, and the two locating pins 106 are respectively fixedly connected to the rotating screw rod 104 and are respectively located on the side of the rotating screw rod 104 away from the screw rod sleeve 105. The rotating assembly and the mounting assembly are respectively connected to the fixed frame 101. 101 provides support for the door panel 102, and the door panel 102 provides a sealing effect for the waste heat boiler. The fixing seat 103 provides support for the rotating screw rod 104, and the screw rod sleeve 105 provides a limiting effect for the rotating screw rod 104. The positioning pin 106 provides a fixing effect for the door panel 102. When the door panel 102 is fixed, the rotating screw rods 104 on both sides are extended by rotating the screw rod sleeve 105, and the positioning pin 106 is inserted into the interior of the fixing rod 108 to achieve the fixing effect of the door panel 102. When the door panel 102 needs to be pulled open, the rotating screw rods 104 on both sides are retracted into the interior of the screw rod sleeve 105 by rotating the screw rod sleeve 105, and the positioning pin 106 is pulled out from the fixing rod 108, so that the door panel 102 can be easily pulled open from the fixing frame 101 through the screw rod sleeve 105.

[0022] Among them, the number of the fixed hinges 107 is two, and the two fixed hinges 107 are respectively fixedly connected to the fixed frame 101 and are respectively located on the front side of the fixed frame 101. The number of the fixed rods 108 is two, and one end of the two fixed frames 101 is respectively rotatably connected to the fixed hinges 107, and the other ends of the two fixed frames 101 are respectively slidably connected to the positioning pin 106. The fixed hinge 107 provides a rotation effect for the fixed rod 108, and the fixed rod 108 provides a limiting effect for the positioning pin 106. The fixed rod 108 rotates along the fixed hinge 107, which facilitates the fixing of the positioning pin 106 by the fixed rod 108.

[0023] Secondly, there are two connecting plates 109, and the two connecting plates 109 are respectively fixedly connected to the fixed frame 101 and are respectively located at the bottom of the fixed frame 101. There are two rotating plates 110, and there are two connecting hinges 111. The two rotating plates 110 are respectively connected to the connecting plates 109 through the connecting hinges 111. The connecting plates 109 provide support for the connecting hinges 111 and the rotating plates 110. The connecting hinges 111 provide a rotation effect for the rotating plates 110. The rotating plates 110 provide a rotation effect for the door panels 102, which is convenient for fixing the door panels 102.

[0024] Again, there are two rotating seats 112, which are respectively fixedly connected to the door panels 102 and are respectively located on the front sides of the door panels 102. There are two rotating shafts 113, which are respectively rotatably connected to the connecting plates 109 and pass through the rotating seats 112 respectively. The rotating seats 112 provide a rotating effect for the rotating shafts 113, and the rotating shafts 113 provide a rotating and supporting function for the door panel 102. When the door panel 102 is opened or closed, the door panel 102 is rotated along the rotating shafts 113, so as to facilitate the opening or closing of the door panel 102.

[0025] A composite furnace door structure of a waste heat boiler using this embodiment, the fixing frame 101 provides support for the door panel 102, the door panel 102 provides a sealing effect for the waste heat boiler, the fixing seat 103 provides support for the rotating screw rod 104, the screw rod sleeve 105 provides a limiting effect for the rotating screw rod 104, and the positioning pin 106 provides a fixing effect for the door panel 102. When fixing the door panel 102, the rotating screw rods 104 on both sides are extended by rotating the screw rod sleeve 105, and the positioning pin 106 is inserted into the door panel 102. The interior of the fixing rod 108 can achieve the effect of fixing the door panel 102. When the door panel 102 needs to be pulled open, the rotating screws 104 on both sides are retracted into the interior of the screw sleeve 105 by rotating the screw sleeve 105, and the positioning pin 106 is pulled out from the fixing rod 108. The screw sleeve 105 is used to facilitate the door panel 102 to be pulled open from the fixing frame 101, which solves the problem that the composite furnace door structure of the waste heat boiler is not convenient for fixing the furnace door panel during use, and the furnace door panel is easy to loosen, resulting in poor sealing effect of the furnace door panel.

[0026] The second embodiment of the present application is:

[0027] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4It is a front view of a composite furnace door structure of a waste heat boiler according to the second embodiment of the utility model.

[0028] The composite furnace door structure of the waste heat boiler in this embodiment further includes a mounting assembly, and the mounting assembly includes a mounting plate 201 and mounting bolts 202 .

[0029] According to this specific embodiment, the number of the mounting plates 201 is two, and the two mounting plates 201 are respectively fixedly connected to the fixing frame 101 and are respectively located on both sides of the fixing frame 101. The number of the mounting bolts 202 is multiple, and the multiple mounting bolts 202 are respectively threadedly connected to the mounting plates 201 and respectively pass through the mounting plates 201. The mounting plate 201 provides support and fixation for the fixing frame 101. The mounting bolts 202 facilitate the installation of the mounting plate 201 and the fixing frame 101 inside the waste heat boiler.

[0030] In the composite furnace door structure of a waste heat boiler using this embodiment, the mounting plate 201 provides support and fixation for the fixing frame 101 , and the mounting bolts 202 facilitate the mounting of the mounting plate 201 and the fixing frame 101 inside the waste heat boiler.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A composite furnace door structure of a waste heat boiler, comprising a fixed frame and a door panel, wherein the door panel is detachably connected to the fixed frame and is located inside the fixed frame, characterized in that: It also includes a fixed component, a rotating component and a mounting component; The fixing assembly includes a fixing seat, a rotating screw, a screw sleeve and a positioning pin. There are two fixing seats, and the two fixing seats are respectively fixedly connected to the door panels and are respectively located on the front sides of the door panels. There are two rotating screws, and the two rotating screws are respectively slidably connected to the fixing seats and respectively pass through the fixing seats. The screw sleeve is threadedly connected to the rotating screw and is located on the outsides of the two rotating screws. There are two positioning pins, and the two positioning pins are respectively fixedly connected to the rotating screw and are respectively located on the side of the rotating screw away from the screw sleeve. The rotating assembly and the mounting assembly are respectively connected to the fixing frame.

2. The composite furnace door structure of the waste heat boiler according to claim 1, characterized in that: The fixing assembly also includes a fixing hinge and a fixing rod. There are two fixing hinges, and the two fixing hinges are respectively fixedly connected to the fixing frames and are respectively located on the front sides of the fixing frames. There are two fixing rods, and one end of the two fixing frames is respectively rotatably connected to the fixing hinges, and the other end of the two fixing frames is respectively slidably connected to the positioning pins.

3. The composite furnace door structure of the waste heat boiler according to claim 1, characterized in that: The rotating assembly includes a connecting plate, a rotating plate and a connecting hinge. There are two connecting plates, and the two connecting plates are respectively fixedly connected to the fixed frame and are respectively located at the bottom of the fixed frame. There are two rotating plates, and there are two connecting hinges. The two rotating plates are respectively connected to the connecting plates through the connecting hinges.

4. The composite furnace door structure of the waste heat boiler according to claim 3, characterized in that: The rotating assembly also includes a rotating seat and a rotating shaft. There are two rotating seats, which are fixedly connected to the door panels and located on the front of the door panels respectively. There are two rotating shafts, which are rotatably connected to the connecting plates and pass through the rotating seats respectively.

5. The composite furnace door structure of the waste heat boiler according to claim 1, characterized in that: The mounting assembly includes a mounting plate and mounting bolts. There are two mounting plates, which are respectively fixedly connected to the fixing frame and are respectively located on both sides of the fixing frame. There are multiple mounting bolts, which are respectively threadedly connected to the mounting plates and respectively pass through the mounting plates.

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