A detachable muffler for a power plant boiler

Abstract

The utility model relates to power plant boiler technical field, and disclose a kind of detachable muffler for power plant boiler, solve the problem that it is difficult to disassemble and replace when current sound ware is damaged, it includes boiler exhaust pipe, the top of boiler exhaust pipe is equipped with muffler main body, installation mechanism is equipped between muffler main body and boiler exhaust pipe, installation mechanism includes the support seat fixed in the outside of boiler exhaust pipe, the top of support seat is equipped with annular placement groove, muffler main body is placed in annular placement groove, the bottom of support seat is fixedly connected with U-shaped frame, boiler exhaust pipe penetrates U-shaped frame, the bottom both sides of U-shaped frame are equipped with positioning groove, the outside of muffler main body is fixedly sleeved with outer ring one;The utility model, the installation of muffler main body is convenient, when two positioning plates are separated from two positioning grooves respectively can disassemble muffler main body, to facilitate the disassembly of muffler main body.

Description

Technical Field

[0001] This utility model belongs to the field of power plant boiler technology, specifically a detachable silencer for power plant boilers. Background Technology

[0002] During boiler operation, in order to ensure the cleanliness of the high-pressure steam entering the turbine, the boiler's own high-temperature and high-pressure steam is used to purge the boiler's heating surfaces and piping system, which generates a lot of noise. Therefore, a silencer is installed at the boiler's exhaust pipe to reduce noise pollution.

[0003] Currently, most silencers on the market are welded directly to the exhaust pipe of the boiler, making it difficult to disassemble and replace them when they are damaged. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a detachable silencer for power plant boilers, which effectively solves the problem that it is difficult to disassemble and replace the silencer when it is damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable silencer for power plant boilers, comprising a boiler exhaust pipe, wherein a silencer body is provided at the top end of the boiler exhaust pipe, and an installation mechanism is provided between the silencer body and the boiler exhaust pipe; The installation mechanism includes a support base fixed to the outside of the boiler exhaust pipe. The top of the support base is provided with an annular placement groove, and the silencer body is placed in the annular placement groove. A U-shaped frame is fixedly connected to the bottom of the support base. The boiler exhaust pipe passes through the U-shaped frame. Positioning grooves are provided on both sides of the bottom of the U-shaped frame. An outer ring is fixedly sleeved on the outside of the silencer body. Two positioning plates are symmetrically provided on the outside of the outer ring, and the two positioning plates are inserted into the two positioning grooves respectively.

[0006] Preferably, the top of the support base is symmetrically fixedly connected with two positioning rods, an outer ring one is located between the two positioning rods, and an outer ring two located above the outer ring one is fixedly sleeved on the outside of the muffler body, and the outer ring two is movably sleeved on the outside of the two positioning rods.

[0007] Preferably, two symmetrical sliding grooves are provided on the outer side of the outer ring one. A sliding rod is fixedly connected to the inner side of the sliding groove. A side plate is fixedly connected to one end of the sliding rod. A slider is movably sleeved on the outer side of the sliding rod. A spring is fixedly connected between the slider and the side plate. The spring is sleeved on the outer side of the sliding rod. A U-shaped round rod is fixedly connected to the outer side of the slider. The U-shaped round rod passes through the side plate and is movably connected to the side plate. A positioning plate is fixedly sleeved on the middle of the outer side of the U-shaped round rod.

[0008] Preferably, the bottom of the U-shaped frame is provided with a limiting plate, and the bottom of the two positioning plates is fixedly connected with a limiting rod. The limiting plate is sleeved on the outside of the two limiting rods, and the limiting plate abuts against the two positioning plates.

[0009] Preferably, both sides of the U-shaped frame are provided with guide grooves, and guide blocks are slidably connected in both guide grooves. Connecting columns are fixedly connected between the two guide blocks and the limiting plate, and the two connecting columns pass through the U-shaped frame and are movably connected to the U-shaped frame.

[0010] Preferably, a screw is fixedly connected to the bottom of the U-shaped frame, a limiting plate is located outside the screw and does not contact the screw, a screw cylinder is threaded onto the outside of the screw, a handwheel is fixedly connected to the bottom end of the screw cylinder, and the top end of the screw cylinder abuts against the limiting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The placement of the muffler body is facilitated by the cooperation between the support base and the annular placement groove, as well as the positioning rod and the outer ring. The installation of the muffler body is facilitated by the cooperation between the sliding rod, side plate, slider, spring, U-shaped round rod, positioning plate and positioning groove. The muffler body can be disassembled when the two positioning plates are respectively separated from the two positioning grooves, thus facilitating the disassembly and assembly of the muffler body. 2. Through the cooperation of the guide groove, guide block, connecting column, limiting plate, limiting rod, screw and screw cylinder, the two positioning plates can be limited to prevent them from loosening, thereby facilitating the stability of the muffler body. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the detachable silencer for power plant boilers according to this utility model; Figure 2 This is a schematic diagram of the installation mechanism structure of this utility model; Figure 3 This is a schematic diagram of the outer ring structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the positioning plate and U-shaped frame of this utility model; Figure 5 This is a schematic diagram showing the disassembled structure of the screw barrel and U-shaped frame of this utility model.

[0014] In the diagram: 1. Boiler exhaust pipe; 2. Installation mechanism; 201. Support base; 202. U-shaped frame; 203. Positioning plate; 204. Annular placement groove; 205. Outer ring one; 206. Outer ring two; 207. Positioning rod; 208. Spring; 209. Side plate; 2010. U-shaped round rod; 2011. Slider; 2012. Slide rod; 2013. Slide groove; 2014. Guide groove; 2015. Guide block; 2016. Connecting column; 2017. Limiting plate; 2018. Screw barrel; 2019. Positioning groove; 2020. Limiting rod; 2021. Screw; 2022. Handwheel; 3. Silencer body. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Example 1, by Figure 1 The present invention relates to a detachable silencer for power plant boilers, comprising a boiler exhaust pipe 1, a silencer body 3 at the top end of the boiler exhaust pipe 1, and an installation mechanism 2 between the silencer body 3 and the boiler exhaust pipe 1.

[0017] Specifically, by Figure 2-4The installation mechanism 2 includes a support base 201 fixed to the outside of the boiler exhaust pipe 1. The top of the support base 201 has an annular placement groove 204, and the silencer body 3 is placed within the annular placement groove 204. A U-shaped frame 202 is fixedly connected to the bottom of the support base 201, through which the boiler exhaust pipe 1 passes. Positioning grooves 2019 are provided on both sides of the bottom of the U-shaped frame 202. An outer ring 205 is fixedly sleeved on the outside of the silencer body 3. Two positioning plates 203 are symmetrically arranged on the outside of the outer ring 205, and the two positioning plates 203 are respectively inserted into the two positioning grooves 2019. Two positioning rods 207 are symmetrically fixedly connected to the top of the support base 201, with the outer ring 205 located between the two positioning rods 207. An outer ring 206 located above the outer ring 205 is fixedly sleeved on the outside of the silencer body 3. Outer ring 1 205 and outer ring 2 206 are both welded to the outside of the muffler body 3 and are not integral with the muffler body 3. Outer ring 2 206 is movably sleeved on the outside of the two positioning rods 207. Two sliding grooves 2013 are symmetrically provided on the outside of outer ring 1 205. A sliding rod 2012 is fixedly connected to the inside of the sliding groove 2013. A side plate 209 is fixedly connected to one end of the sliding rod 2012. A slider 2011 is movably sleeved on the outside of the sliding rod 2012. A spring 208 is fixedly connected between the slider 2011 and the side plate 209. The spring 208 is sleeved on the outside of the sliding rod 2012. A U-shaped round rod 2010 is fixedly connected to the outside of the slider 2011. The U-shaped round rod 2010 passes through the side plate 209 and is movably connected to the side plate 209. A positioning plate 203 is fixedly sleeved on the middle of the outside of the U-shaped round rod 2010. In use, first pull the two positioning plates 203, which will move the two U-shaped rods 2010 and cause the two sliders 2011 to slide along the two sliding rods 2012 respectively. At this time, the two springs 208 are compressed. Then, place the muffler body 3 in the annular placement groove 204, so that the outer ring 206 is fitted on the outside of the two positioning rods 207. Then release the two positioning plates 203, so that the two positioning plates 203 move under the elastic force of the two springs 208 until the two positioning plates 203 are inserted into the two positioning grooves 2019 respectively, thus realizing the installation of the muffler body 3. When the two positioning plates 203 are disengaged from the two positioning grooves 2019 respectively, the muffler body 3 can be disassembled. Finally, the quick assembly and disassembly of the muffler body 3 is completed.

[0018] Specifically, by Figure 4-5As shown, the bottom of the U-shaped frame 202 is provided with a limiting plate 2017, and the bottom of each of the two positioning plates 203 is fixedly connected to a limiting rod 2020. The limiting plate 2017 is sleeved on the outside of the two limiting rods 2020, and the limiting plate 2017 abuts against the two positioning plates 203. Both sides of the U-shaped frame 202 are provided with guide grooves 2014, and guide blocks 2015 are slidably connected in each of the two guide grooves 2014. Connecting posts 2016 are fixedly connected between each of the two guide blocks 2015 and the limiting plate 2017. Both connecting columns 2016 pass through the U-shaped frame 202 and are movably connected to the U-shaped frame 202. The bottom of the U-shaped frame 202 is fixedly connected to a screw rod 2021. The limiting plate 2017 is located outside the screw rod 2021 and does not contact the screw rod 2021 to avoid wear on the screw rod 2021 when the limiting plate 2017 moves. The screw rod 2021 is threadedly fitted with a screw cylinder 2018. The bottom end of the screw cylinder 2018 is fixedly connected to a handwheel 2022. The top end of the screw cylinder 2018 abuts against the limiting plate 2017. An elastic compensator is installed between the power plant boiler and the boiler exhaust pipe 1 to absorb the instantaneous impact force during exhaust to buffer and protect the pipeline and equipment. At the same time, it compensates for the displacement of the boiler exhaust pipe 1 caused by thermal expansion and contraction through its own elastic deformation. It can also adapt to installation deviations and absorb pipeline vibration, thereby preventing damage to the boiler exhaust pipe 1, the silencer body 3 and the boiler body due to rigid stress or displacement, and ensuring the stable operation and service life of the entire exhaust system.

[0019] In use, when the two positioning plates 203 are inserted into the two positioning slots 2019 respectively, the limiting plate 2017 is first moved. The two connecting columns 2016 drive the two guide blocks 2015 to slide along the two guide slots 2014 respectively, so that the limiting plate 2017 is fitted on the outside of the two limiting rods 2020 until the limiting plate 2017 abuts against the two positioning plates 203. Then, the screw barrel 2018 is fitted on the outside of the screw 2021 and the handwheel 2022 is rotated until the screw barrel 2018 abuts against the limiting plate 2017, thereby limiting the two positioning plates 203 to prevent them from loosening, and finally ensuring the stability of the muffler body 3.

Claims

1. A detachable silencer for power plant boilers, comprising a boiler exhaust pipe (1), characterized in that: The top end of the boiler exhaust pipe (1) is provided with a silencer body (3), and an installation mechanism (2) is provided between the silencer body (3) and the boiler exhaust pipe (1). The installation mechanism (2) includes a support base (201) fixed to the outside of the boiler exhaust pipe (1). The top of the support base (201) is provided with an annular placement groove (204). The silencer body (3) is placed in the annular placement groove (204). The bottom of the support base (201) is fixedly connected with a U-shaped frame (202). The boiler exhaust pipe (1) passes through the U-shaped frame (202). The bottom sides of the U-shaped frame (202) are provided with positioning grooves (2019). The outside of the silencer body (3) is fixedly sleeved with an outer ring (205). Two positioning plates (203) are symmetrically provided on the outside of the outer ring (205). The two positioning plates (203) are respectively inserted into the two positioning grooves (2019).

2. A detachable silencer for power plant boilers according to claim 1, characterized in that: The top of the support base (201) is symmetrically fixedly connected to two positioning rods (207). The outer ring one (205) is located between the two positioning rods (207). The outer ring two (206) located above the outer ring one (205) is fixedly sleeved on the outside of the muffler body (3). The outer ring two (206) is movably sleeved on the outside of the two positioning rods (207).

3. A detachable silencer for power plant boilers according to claim 1, characterized in that: Two sliding grooves (2013) are symmetrically provided on the outer side of the outer ring (205). A sliding rod (2012) is fixedly connected to the inner side of the sliding groove (2013). A side plate (209) is fixedly connected to one end of the sliding rod (2012). A slider (2011) is movably sleeved on the outer side of the sliding rod (2012). A spring (208) is fixedly connected between the slider (2011) and the side plate (209). The spring (208) is sleeved on the outer side of the sliding rod (2012). A U-shaped round rod (2010) is fixedly connected to the outer side of the slider (2011). The U-shaped round rod (2010) passes through the side plate (209) and is movably connected to the side plate (209). A positioning plate (203) is fixedly sleeved on the middle of the outer side of the U-shaped round rod (2010).

4. A detachable silencer for power plant boilers according to claim 1, characterized in that: The bottom of the U-shaped frame (202) is provided with a limiting plate (2017), and the bottom of the two positioning plates (203) are fixedly connected with limiting rods (2020). The limiting plate (2017) is sleeved on the outside of the two limiting rods (2020), and the limiting plate (2017) abuts against the two positioning plates (203).

5. A detachable silencer for power plant boilers according to claim 1, characterized in that: The U-shaped frame (202) is provided with guide grooves (2014) on both sides. Guide blocks (2015) are slidably connected in both guide grooves (2014). Connecting columns (2016) are fixedly connected between the two guide blocks (2015) and the limiting plate (2017). The two connecting columns (2016) pass through the U-shaped frame (202) and are movably connected to the U-shaped frame (202).

6. A detachable silencer for power plant boilers according to claim 1, characterized in that: The bottom of the U-shaped frame (202) is fixedly connected to a screw rod (2021), and the limiting plate (2017) is located outside the screw rod (2021) and does not contact the screw rod (2021). The screw rod (2021) is threadedly fitted with a screw cylinder (2018), and the bottom end of the screw cylinder (2018) is fixedly connected to a handwheel (2022). The top end of the screw cylinder (2018) abuts against the limiting plate (2017).

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