Energy-saving system and method for flue gas waste heat recovery

Abstract

The invention provides an energy-saving system and method for flue gas waste heat recovery, and relates to the technical field of flue gas filtration, the energy-saving system comprises a connecting mounting piece, a particle filtering piece, a particle collecting piece, an anti-moving positioning piece, a flue gas storage piece and a shaking detection piece; the particle filtering part is mounted in the connecting mounting part; the particle collecting part is mounted at the bottom of the connecting mounting part; the anti-moving positioning piece is mounted on the connecting mounting piece; the flue gas storage part is mounted at the top of the connecting mounting part; the shaking detection part is mounted on the connecting mounting part and the flue gas storage part; a control panel is mounted on the front side of the connecting mounting piece; according to the invention, particulate matters collected in the metal collection box are sealed, so that the movable baffle plate can be opened only when the metal filter screen is cleaned; the problem that after particulate matter on a filter screen is cleaned, the collected particulate matter cannot be sealed, so that the cleaned particulate matter is easily blown out continuously during follow-up filtration of flue gas is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of flue gas filtration, more particularly, relates to an energy-saving system and method for flue gas waste heat recovery. BACKGROUND

[0002] The fluidized bed boiler is a kind of high-efficiency clean combustion equipment, which mixes and burns fuel and bed material in a fluidized state, has the characteristics of wide fuel adaptability, high combustion efficiency, low-temperature combustion to inhibit the generation of nitrogen oxides, etc.; when the fluidized bed boiler recovers waste heat, it needs to filter particulate matters in the flue gas, mainly to prevent equipment wear and tear, avoid heat transfer surface fouling to reduce efficiency, and meet environmental protection emission requirements, particulate matters can erode the pipeline and form a heat insulation ash layer.

[0003] The currently used flue gas filtration equipment still has the following problems:

[0004] 1. After the particulate matters on the filter screen are cleaned, the collected particulate matters cannot be sealed, which causes the cleaned particulate matters to be blown out again during subsequent flue gas filtration;

[0005] 2. Although some filter screens are provided with cleaning structures, the cleaning structures occupy a large space on the filter screen, which cannot guarantee that the filter screen is fully used, and reduces the flue gas filtration efficiency;

[0006] 3. Generally, there is no loosening detection structure, when the flue gas filtration equipment is loose, it is not convenient for the staff to lock it in time, which affects the subsequent use stability of the equipment. SUMMARY

[0007] The disclosed embodiment relates to an energy-saving system and method for flue gas waste heat recovery, which has a metal collecting box, a particulate filter, a particulate collector, a shift prevention positioning piece, a flue gas storage piece and a shaking detection piece; the collected particulate matters in the metal collecting box are sealed, so that the movable baffle plate is only opened when the metal filter screen is cleaned; the staff can automatically shake the metal filter screen by retracting the two electric telescopic rod output shafts and starting and stopping the fluidized bed boiler, which is conducive to the particulate matters on the metal filter screen falling into the metal collecting box; when the switch a and the switch b are in the pressed state at the same time, the alarm in the control panel works, which is conducive to reminding the staff to lock the rectangular mounting seat; the problems of being unable to seal the collected particulate matters, the cleaning structure occupying a large space on the filter screen and the staff being inconvenient to lock the loosening part in time are solved.

[0008] The first aspect of the present disclosure provides an energy-saving system for flue gas waste heat recovery, comprising: a connecting mount, a particle filter, a particle collector, a anti-shift positioning piece, a flue gas storage piece and a shaking detection piece; the particle filter is installed inside the connecting mount, and is used for filtering particulate matters in flue gas; the particle collector is installed at the bottom of the connecting mount, and is used for collecting particulate matters on the particle filter; the anti-shift positioning piece is installed on the connecting mount, and is used for positioning the particle filter; the flue gas storage piece is installed at the top of the connecting mount, and is used for storing flue gas to be filtered; the shaking detection piece is installed on the connecting mount and the flue gas storage piece, and is used for detecting whether the connecting mount shakes; and a control panel is installed on the front side of the connecting mount.

[0009] In at least some embodiments, the connecting mount comprises: a rectangular mounting seat, a connecting bracket and an energy-saving shell; the rectangular mounting seat is provided with mounting holes at the corners; the connecting bracket is slidingly installed on the rectangular mounting seat through a row of dovetail structures; and the energy-saving shell is fixedly installed on the front side of the connecting bracket.

[0010] In at least some embodiments, the particle filter comprises: a circular mounting rod, a rectangular frame, a support spring a and a metal filter screen; two rows of circular mounting rods are provided, and the two rows of circular mounting rods are fixedly installed inside the energy-saving shell; the rectangular frame is slidingly installed outside the two rows of circular mounting rods, and the bottom of the rectangular frame is provided with an anti-shift groove; four rows of support springs a are provided, and the four rows of support springs a are sleeved outside the two rows of circular mounting rods and located on the left and right sides of the rectangular frame; and the metal filter screen is fixedly installed on the rectangular frame.

[0011] In at least some embodiments, the particle collector comprises: a metal collection box, a circular sealing cover and a movable shielding plate; the metal collection box is fixedly installed at the bottom of the energy-saving shell; the circular sealing cover is threadedly connected to the bottom end of the metal collection box; and the movable shielding plate is slidingly installed on the metal collection box.

[0012] In at least some embodiments, the particle collector further comprises: a positioning magnet and a circular limiting column; the positioning magnet is fixedly installed inside the movable shielding plate and also contacts the metal collection box; and two circular limiting columns are provided, and the two circular limiting columns are fixedly installed on the movable shielding plate.

[0013] In at least some embodiments, the anti-shifting positioning member comprises a rectangular mounting plate, an anti-shifting positioning rod, and a limiting ring; the rectangular mounting plate is fixedly installed on the energy-saving shell; the anti-shifting positioning rod is slidingly installed on the rectangular mounting plate, and the top end of the anti-shifting positioning rod is inserted into the anti-shifting groove, and the bottom end of the anti-shifting positioning rod is in contact with the movable baffle; the limiting ring is fixedly installed outside the anti-shifting positioning rod, and the limiting ring is located above the rectangular mounting plate.

[0014] In at least some embodiments, the smoke gas storage member comprises a smoke gas storage cover, a cross-shaped mounting bracket, a movable suction plate, and two electric telescopic rods; the smoke gas storage cover is fixedly installed on the top of the energy-saving shell; the cross-shaped mounting bracket is fixedly installed on the top end of the smoke gas storage cover; the movable suction plate is slidingly installed inside the smoke gas storage cover; the two electric telescopic rods are fixedly installed on the cross-shaped mounting bracket; the output shafts of the two electric telescopic rods are fixedly connected with the movable suction plate, and the two electric telescopic rods are further electrically connected with the control panel.

[0015] In at least some embodiments, the shaking detection member comprises a U-shaped mounting bracket, an octagonal rod, a limiting mounting plate, and a blocking disc; the U-shaped mounting bracket is fixedly installed on the back side of the smoke gas storage cover; the octagonal rod is slidingly installed on the U-shaped mounting bracket, and the back side of the octagonal rod is flush with the back side of the rectangular mounting seat; the limiting mounting plate is fixedly installed on the front end of the octagonal rod; the blocking disc is fixedly installed outside the octagonal rod, and the blocking disc is located behind the U-shaped mounting bracket.

[0016] In at least some embodiments, the shaking detection member further comprises a support spring b, a switch a, a switch b, and an arc-shaped protrusion; the support spring b is sleeved outside the octagonal rod, and the support spring b is located between the U-shaped mounting bracket and the blocking disc; the switch a is fixedly installed on the back side of the limiting mounting plate, and the switch a is in an unpressed state, and the switch a is further electrically connected with the control panel; the switch b is fixedly installed inside the connecting bracket, and the switch b is in a pressed state, and the switch b is further electrically connected with the control panel; when the switch a and the switch b are both in the pressed state, the alarm in the control panel works; the arc-shaped protrusion is fixedly installed on the back side of the switch b.

[0017] In another aspect of the present disclosure, an energy-saving method for smoke gas waste heat recovery is provided, comprising the following steps:

[0018] 1) The rectangular mounting seat is fixedly installed by bolts, and then the connecting bracket is slidingly installed on the rectangular mounting seat through a row of dovetail structures;

[0019] 2) The smoke gas pipeline on the fluidized bed boiler is connected with the left end of the energy-saving shell, and then the waste heat recovery pipeline is connected with the right end of the energy-saving shell;

[0020] 3、 when the metal filter screen needs to be cleaned, pull the movable baffle to the right, and wait for the top end of the anti-movement positioning rod to be separated from the anti-movement groove;

[0021] 4、 intermittently contract the output shafts of the two electric telescopic rods, and then intermittently start and stop the fluidized bed boiler, so that the particles on the metal filter screen fall into the metal collection box;

[0022] 5、 turn off the fluidized bed boiler, and then pull the movable baffle to the left, so that the top end of the anti-movement positioning rod is inserted into the anti-movement groove;

[0023] 6、 when the alarm in the control panel is working, the worker locks the bolts on the rectangular mounting seat in time.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] 1、 the metal filter screen is provided, which plays a filtering role on the particles in the flue gas; the rectangular frame has left and right sliding effects under the action of the four rows of supporting springs a; the metal collection box is provided, which facilitates the collection of the cleaned particles on the metal filter screen; the movable baffle is provided, which plays a sealing role on the collected particles in the metal collection box, so that the movable baffle can only be opened when the metal filter screen is cleaned.

[0026] 2、 the anti-movement positioning rod is provided, which plays a positioning role on the rectangular frame, so that the metal filter screen can be in a stable state, and wear of the two rows of circular mounting rods and the rectangular frame is avoided; when the worker pulls the movable baffle to the right, the anti-movement positioning rod automatically slides downward under the action of gravity, so that the top end of the anti-movement positioning rod is automatically separated from the anti-movement groove;

[0027] In addition, when the output shafts of the two electric telescopic rods are contracted, the cross mounting frame moves upward, so that part of the flue gas to be filtered enters the flue gas storage cover; when the worker turns off the fluidized bed boiler, the metal filter screen slides to the left under the action of the two rows of right side supporting springs a, so that the worker can automatically shake the metal filter screen by contracting the output shafts of the two electric telescopic rods and starting and stopping the fluidized bed boiler, which is beneficial to the falling of the particles on the metal filter screen into the metal collection box.

[0028] 3、 when the connecting bracket is connected with the rectangular mounting seat, the rectangular mounting seat can push the arc-shaped protrusion to move forward, so that the switch b is in a pressed state; when the connecting bracket is connected with the rectangular mounting seat, the rear side of the octagonal rod is flush with the rear side of the rectangular mounting seat;

[0029] In addition, when the rectangular mounting base shakes after long-term use, the octagonal rod can move backward under the action of the support spring b, causing the U-shaped mounting frame to press switch a; when switches a and b are in the pressed state at the same time, the alarm in the control panel will work, which is convenient for reminding the staff to lock the rectangular mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0031] The drawings described below only relate to some embodiments of the present invention, rather than limiting the present invention.

[0032] In the attached figure:

[0033] Figure 1 Shows a schematic diagram of the three-dimensional structure of the present invention after installation;

[0034] Figure 2 The present invention is shown Figure 1 Schematic diagram of the rear side perspective structure;

[0035] Figure 3 Shows a schematic structural diagram of the connecting and mounting member of the present invention;

[0036] Figure 4 The present invention is shown Figure 1 Schematic diagram of the transverse central section structure;

[0037] Figure 5 The present invention is shown Figure 4 Schematic diagram of the local enlarged structure of area A in the middle;

[0038] Figure 6 A schematic structural diagram of a particle collecting member of the present invention is shown;

[0039] Figure 7 The present invention is shown Figure 4 Schematic diagram of the local enlarged structure of area B in the middle;

[0040] Figure 8 The present invention is shown Figure 2 Schematic diagram of the local enlarged structure of the middle C area;

[0041] Figure 9 The present invention is shown Figure 1 Schematic diagram of the longitudinal central section structure;

[0042] Figure 10 The present invention is shown Figure 9 Schematic diagram of the locally enlarged structure of area D in the middle.

[0043] List of reference numerals:

[0044] 100, connecting mount; 101, rectangular mount; 102, connecting bracket; 103, energy-saving shell;

[0045] 200, particle filter; 201, circular mounting rod; 202, rectangular frame; 2021, anti-shift groove; 203, support spring a; 204, metal filter screen;

[0046] 300, particle collection; 301, metal collection box; 302, circular sealing cover; 303, movable baffle; 304, positioning magnet; 305, circular limiting column;

[0047] 400, anti-shift positioning member; 401, rectangular mounting plate; 402, anti-shift positioning rod; 403, limiting ring;

[0048] 500, smoke gas storage member; 501, smoke gas storage cover; 502, cross-shaped mounting frame; 503, movable suction plate; 504, electric telescopic rod;

[0049] 600, shaking detection member; 601, U-shaped mounting frame; 602, octagonal rod; 603, limiting mounting plate; 604, blocking disc; 605, support spring b; 606, switch a; 607, switch b; 608, arc-shaped protrusion;

[0050] 700, control panel. DETAILED DESCRIPTION

[0051] In order to make the purpose, scheme and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0052] Embodiment: Please refer to Figures 1 to 10As shown: the present application provides an energy-saving system for flue gas waste heat recovery, comprising: a connecting installation piece 100, a particle filtering piece 200, a particle collecting piece 300, a anti-shift positioning piece 400, a flue gas containing piece 500 and a shaking detection piece 600; the particle filtering piece 200 is installed inside the connecting installation piece 100, and the particle filtering piece 200 is used for filtering particulate matters in flue gas; the particle collecting piece 300 is installed at the bottom of the connecting installation piece 100, and the particle collecting piece 300 is used for collecting particulate matters on the particle filtering piece 200; the anti-shift positioning piece 400 is installed on the connecting installation piece 100, and the anti-shift positioning piece 400 is used for positioning the particle filtering piece 200; the flue gas containing piece 500 is installed at the top of the connecting installation piece 100, and the flue gas containing piece 500 is used for containing flue gas to be filtered; the shaking detection piece 600 is installed on the connecting installation piece 100 and the flue gas containing piece 500, and the shaking detection piece 600 is used for detecting whether the connecting installation piece 100 shakes; the front side of the connecting installation piece 100 is provided with a control panel 700.

[0053] In the embodiments of the present disclosure, as shown in the figure, Figures 5 to 7 The particle filtering piece 200 comprises: a circular mounting rod 201, a rectangular frame 202, a support spring a 203 and a metal filter screen 204; the circular mounting rod 201 is provided with two rows, and the two rows of circular mounting rods 201 are fixedly installed inside the energy-saving shell 103; the rectangular frame 202 is slidingly installed outside the two rows of circular mounting rods 201, and the bottom of the rectangular frame 202 is provided with an anti-shift groove 2021; the support spring a 203 is provided with four rows, and the four rows of support springs a 203 are sleeved outside the two rows of circular mounting rods 201, and the four rows of support springs a 203 are located on the left and right sides of the rectangular frame 202; the metal filter screen 204 is fixedly installed on the rectangular frame 202;

[0054] The particle collecting piece 300 comprises: a metal collecting box 301, a circular sealing cover 302 and a movable shielding plate 303; the metal collecting box 301 is fixedly installed at the bottom of the energy-saving shell 103; the circular sealing cover 302 is threadedly connected to the bottom end of the metal collecting box 301; the movable shielding plate 303 is slidingly installed on the metal collecting box 301; the particle collecting piece 300 further comprises: a positioning magnet 304 and a circular limiting column 305; the positioning magnet 304 is fixedly installed inside the movable shielding plate 303, and the positioning magnet 304 also contacts the metal collecting box 301; the circular limiting column 305 is provided with two, and the two circular limiting columns 305 are fixedly installed on the movable shielding plate 303;

[0055] The specific action is that the rectangular frame 202 is slidably installed outside the two rows of circular mounting rods 201, and the metal filter screen 204 is fixedly installed on the rectangular frame 202, thereby playing a filtering role on particulate matters in flue gas; and the four rows of supporting springs a 203 are sleeved outside the two rows of circular mounting rods 201, and the four rows of supporting springs a 203 are located on the left and right sides of the rectangular frame 202, so that the rectangular frame 202 has a left and right sliding effect under the action of the four rows of supporting springs a 203.

[0056] In addition, the metal collection box 301 is fixedly installed at the bottom of the energy-saving shell 103, and the circular sealing cover 302 is threadedly connected to the bottom end of the metal collection box 301, so as to facilitate collection of the cleaned particulate matters on the metal filter screen 204; and the movable baffle 303 is slidably installed on the metal collection box 301, and the positioning magnet 304 is fixedly installed in the interior of the movable baffle 303, thereby playing a sealing role on the collected particulate matters in the metal collection box 301, so that the movable baffle 303 is only opened when the metal filter screen 204 is cleaned.

[0057] In the embodiment of the present disclosure, as shown in Figure 4 and Figure 7 The anti-movement positioning member 400 includes a rectangular mounting plate 401, an anti-movement positioning rod 402, and a limiting ring 403; the rectangular mounting plate 401 is fixedly installed on the energy-saving shell 103; the anti-movement positioning rod 402 is slidably installed on the rectangular mounting plate 401, the top end of the anti-movement positioning rod 402 is inserted into the anti-movement groove 2021, and the bottom end of the anti-movement positioning rod 402 is in contact with the movable baffle 303; and the limiting ring 403 is fixedly installed outside the anti-movement positioning rod 402 and located above the rectangular mounting plate 401.

[0058] The flue gas storage member 500 includes a flue gas storage cover 501, a cross-shaped mounting frame 502, a movable suction plate 503, and two electric telescopic rods 504; the flue gas storage cover 501 is fixedly installed at the top of the energy-saving shell 103; the cross-shaped mounting frame 502 is fixedly installed at the top end of the flue gas storage cover 501; the movable suction plate 503 is slidably installed in the interior of the flue gas storage cover 501; and the two electric telescopic rods 504 are fixedly installed on the cross-shaped mounting frame 502; the output shafts of the two electric telescopic rods 504 are fixedly connected with the movable suction plate 503, and the two electric telescopic rods 504 are further electrically connected with the control panel 700.

[0059] Specific action is: because the anti-movement positioning rod 402 is slidingly installed on the rectangular mounting plate 401, and the top end of the anti-movement positioning rod 402 is inserted into the anti-movement groove 2021, the rectangular frame 202 is positioned, so that the metal filter screen 204 can be in a stable state, and wear between the two rows of circular mounting rods 201 and the rectangular frame 202 is avoided; and because the bottom end of the anti-movement positioning rod 402 is in contact with the movable shielding plate 303, and the limiting ring 403 is fixedly installed outside the anti-movement positioning rod 402, and the limiting ring 403 is located above the rectangular mounting plate 401, when the worker pulls the movable shielding plate 303 to the right, the anti-movement positioning rod 402 automatically slides downward under the action of gravity, so that the top end of the anti-movement positioning rod 402 is automatically separated from the anti-movement groove 2021;

[0060] In addition, because the movable suction plate 503 is slidingly installed inside the flue gas storage cover 501, and the two electric telescopic rods 504 are fixedly installed on the cross mounting bracket 502, and the output shafts of the two electric telescopic rods 504 are fixedly connected with the movable suction plate 503, when the output shafts of the two electric telescopic rods 504 are contracted, the cross mounting bracket 502 moves upward, so that part of the flue gas to be filtered enters the flue gas storage cover 501; and because the top end of the anti-movement positioning rod 402 is separated from the anti-movement groove 2021 when the metal filter screen 204 is cleaned, and the metal filter screen 204 can slide to the right under the action of the flue gas, when the worker closes the fluidized bed boiler, the metal filter screen 204 slides to the left under the action of the two rows of right side supporting springs a 203, so that the worker can automatically shake the metal filter screen 204 by contracting the output shafts of the two electric telescopic rods 504 and the fluidized bed boiler, which is beneficial to the particles on the metal filter screen 204 falling into the metal collection box 301.

[0061] In the embodiment of the present disclosure, as shown in Figure 8 and Figure 10 The connecting mounting 100 includes a rectangular mounting seat 101, a connecting bracket 102, and an energy-saving shell 103; the corner of the rectangular mounting seat 101 is provided with a mounting hole; the connecting bracket 102 is slidingly installed on the rectangular mounting seat 101 through a row of dovetail structures; the energy-saving shell 103 is fixedly installed on the front side of the connecting bracket 102;

[0062] The shaking detection piece 600 comprises a U-shaped mounting frame 601, an octagonal rod 602, a limiting mounting plate 603 and a blocking disc 604; the U-shaped mounting frame 601 is fixedly installed at the rear side of the flue gas storage cover 501; the octagonal rod 602 is slidingly installed on the U-shaped mounting frame 601, and the rear side of the octagonal rod 602 is flush with the rear side of the rectangular mounting seat 101; the limiting mounting plate 603 is fixedly installed at the front end of the octagonal rod 602; the blocking disc 604 is fixedly installed outside the octagonal rod 602, and the blocking disc 604 is located behind the U-shaped mounting frame 601; the shaking detection piece 600 further comprises a supporting spring b 605, a switch a 606, a switch b 607 and an arc-shaped protrusion 608; the supporting spring b 605 is sleeved outside the octagonal rod 602, and the supporting spring b 605 is located between the U-shaped mounting frame 601 and the blocking disc 604; the switch a 606 is fixedly installed at the rear side of the limiting mounting plate 603, and the switch a 606 is in an unpressed state, and the switch a 606 is further electrically connected with the control panel 700; the switch b 607 is fixedly installed inside the connecting bracket 102, and the switch b 607 is in a pressed state, and the switch b 607 is further electrically connected with the control panel 700; when the switch a 606 and the switch b 607 are both in the pressed state, the alarm in the control panel 700 works; the arc-shaped protrusion 608 is fixedly installed at the rear side of the switch b 607.

[0063] The specific action is that: since the switch b 607 is fixedly installed inside the connecting bracket 102, and the arc-shaped protrusion 608 is fixedly installed at the rear side of the switch b 607, when the connecting bracket 102 is connected with the rectangular mounting seat 101, the rectangular mounting seat 101 can push the arc-shaped protrusion 608 to move forward, so that the switch b 607 is in the pressed state; and since the octagonal rod 602 is slidingly installed on the U-shaped mounting frame 601, the limiting mounting plate 603 is fixedly installed at the front end of the octagonal rod 602, and the switch a 606 is fixedly installed at the rear side of the limiting mounting plate 603, when the connecting bracket 102 is connected with the rectangular mounting seat 101, the rear side of the octagonal rod 602 is flush with the rear side of the rectangular mounting seat 101.

[0064] In addition, since the blocking disc 604 is fixedly installed outside the octagonal rod 602, and the supporting spring b 605 is sleeved outside the octagonal rod 602, and the supporting spring b 605 is located between the U-shaped mounting frame 601 and the blocking disc 604, when the rectangular mounting seat 101 shakes after being used for a long time, the octagonal rod 602 can move backward under the action of the supporting spring b 605, so that the U-shaped mounting frame 601 presses the switch a 606; when the switch a 606 and the switch b 607 are both in the pressed state, the alarm in the control panel 700 works, which is convenient for reminding the staff to lock the rectangular mounting seat 101.

[0065] The application provides an energy-saving method for flue gas waste heat recovery, comprising the following steps:

[0066] 1), the rectangular mounting seat 101 is fixedly installed through bolts, and then the connecting support 102 is slidably installed on the rectangular mounting seat 101 through a row of dovetail structures;

[0067] 2), the flue gas pipeline on the fluidized bed boiler is connected with the left end of the energy-saving shell 103, and then the waste heat recovery pipeline is connected with the right end of the energy-saving shell 103;

[0068] 3), when the particles on the metal filter screen 204 need to be cleaned, the movable baffle 303 is pulled to the right, and the top end of the anti-moving positioning rod 402 is separated from the anti-moving groove 2021;

[0069] 4), the output shafts of the two electric telescopic rods 504 are intermittently retracted, and then the fluidized bed boiler is intermittently started and stopped, so that the particles on the metal filter screen 204 fall into the metal collecting box 301;

[0070] 5), the fluidized bed boiler is closed, and then the movable baffle 303 is pushed to the left, so that the top end of the anti-moving positioning rod 402 is inserted into the anti-moving groove 2021;

[0071] 6), when the alarm in the operation panel 700 works, the staff timely locks the bolts on the rectangular mounting seat 101.

[0072] The specific use mode and effect of the embodiment are as follows:

[0073] When the application is used, first, the rectangular mounting seat 101 is fixedly installed through bolts, and then the connecting bracket 102 is slidably installed on the rectangular mounting seat 101 through a row of dovetail structures, when the connecting bracket 102 is connected with the rectangular mounting seat 101, the rectangular mounting seat 101 can push the arc-shaped protrusion 608 to move forward, so that the switch b 607 is in a pressed state; when the connecting bracket 102 is connected with the rectangular mounting seat 101, the rear side of the octagonal rod 602 is flush with the rear side of the rectangular mounting seat 101; the flue gas pipeline on the fluidized bed boiler is connected with the left end of the energy-saving shell 103, and then the waste heat recovery pipeline is connected with the right end of the energy-saving shell 103; when it is needed to clean the particulate matters on the metal filter screen 204, the movable baffle 303 is pulled to the right, and the top end of the anti-movement positioning rod 402 is separated from the anti-movement groove 2021; the output shafts of the two electric telescopic rods 504 are intermittently retracted, and then the fluidized bed boiler is intermittently started and stopped; when the output shafts of the two electric telescopic rods 504 are retracted, the cross-shaped mounting frame 502 moves upward, so that part of the flue gas to be filtered enters the flue gas storage cover 501; when the staff member turns off the fluidized bed boiler, the metal filter screen 204 slides to the left under the action of the two rows of support springs a 203 on the right side, so that the staff member can automatically shake the metal filter screen 204 by retracting the output shafts of the two electric telescopic rods 504 and starting and stopping the fluidized bed boiler, and the particulate matters on the metal filter screen 204 can fall into the metal collection box 301; the fluidized bed boiler is turned off, and the movable baffle 303 is pushed to the left, so that the top end of the anti-movement positioning rod 402 is inserted into the anti-movement groove 2021, the particulate matters collected in the metal collection box 301 are sealed, and the movable baffle 303 is only opened when the metal filter screen 204 is cleaned; when the rectangular mounting seat 101 shakes after being used for a long time, the octagonal rod 602 can move backward under the action of the support spring b 605, so that the U-shaped mounting frame 601 presses the switch a 606; when the switch a 606 and the switch b 607 are both in a pressed state, the alarm in the control panel 700 works, and when the alarm in the control panel 700 works, the staff member can lock the bolts on the rectangular mounting seat 101 in time.

[0074] In this paper, the following points need to be noted:

[0075] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0076] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0077] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An energy saving system for flue gas heat recovery, comprising: The utility model relates to a connection mounting piece (100), particle filter piece (200), particle collection piece (300), anti -migration positioning piece (400), smoke gas storage piece (500) and sway detection piece (600), its characterized in be that the particle filter piece (200) is installed in the inside of connection mounting piece (100), the particle filter piece (200) is used for filtering particulate matter in smoke gas, the particle collection piece (300) is installed at the bottom of connection mounting piece (100), the particle collection piece (300) is used for collecting particulate matter on the particle filter piece (200), the anti -migration positioning piece (400) is installed on connection mounting piece (100), the anti -migration positioning piece (400) is used for positioning the particle filter piece (200), the smoke gas storage piece (500) is installed at the top of connection mounting piece (100), the smoke gas storage piece (500) is used for storage smoke gas to be filtered, the sway detection piece (600) is installed on connection mounting piece (100) and smoke gas storage piece (500), the sway detection piece (600) is used for detecting whether connection mounting piece (100) sway occurs, the front side of connection mounting piece (100) is equipped with control panel (700).

2. An energy saving system for flue gas waste heat recovery as claimed in claim 1 wherein, The connection mounting piece (100) includes: a rectangular mounting seat (101), a connecting support (102) and an energy-saving shell (103); The corner of the rectangular mounting seat (101) is provided with a mounting hole; The connecting support (102) is slidably installed on the rectangular mounting seat (101) through a row of dovetail structures; The energy-saving shell (103) is fixedly installed on the front side of the connecting support (102).

3. The energy saving system for flue gas waste heat recovery according to claim 2, characterized in that, The particle filter piece (200) includes: a circular mounting rod (201), a rectangular frame (202), a support spring a (203) and a metal filter screen (204); The circular mounting rod (201) is provided with two rows, and the two rows of circular mounting rods (201) are fixedly installed in the inside of the energy-saving shell (103); The rectangular frame (202) is slidably installed outside the two rows of circular mounting rods (201), and the bottom of the rectangular frame (202) is provided with an anti-movement groove (2021); The support spring a (203) is provided with four rows, and the four rows of support springs a (203) are sleeved outside the two rows of circular mounting rods (201), and the four rows of support springs a (203) are located on the left and right sides of the rectangular frame (202); The metal filter screen (204) is fixedly installed on the rectangular frame (202).

4. The energy saving system for flue gas waste heat recovery according to claim 3, characterized in that, The particle collection piece (300) includes: a metal collection box (301), a circular sealing cover (302) and a movable shielding plate (303); The metal collection box (301) is fixedly installed at the bottom of the energy-saving shell (103); The circular sealing cover (302) is threadedly connected to the bottom end of the metal collection box (301); The movable shielding plate (303) is slidably installed on the metal collection box (301).

5. An energy efficient system for flue gas heat recovery as claimed in claim 4 wherein, The particle collecting piece (300) further comprises a positioning magnet (304) and a circular limiting column (305); the positioning magnet (304) is fixedly installed inside the movable shielding plate (303), and the positioning magnet (304) also contacts the metal collecting box (301); the circular limiting column (305) is provided with two, and the two circular limiting columns (305) are fixedly installed on the movable shielding plate (303).

6. An energy efficient system for flue gas waste heat recovery as claimed in claim 4 wherein, The anti-movement positioning piece (400) comprises a rectangular mounting plate (401), an anti-movement positioning rod (402) and a limiting ring (403); the rectangular mounting plate (401) is fixedly installed on the energy-saving shell (103); the anti-movement positioning rod (402) is slidingly installed on the rectangular mounting plate (401), the top end of the anti-movement positioning rod (402) is inserted into the anti-movement groove (2021), and the bottom end of the anti-movement positioning rod (402) contacts the movable shielding plate (303); the limiting ring (403) is fixedly installed outside the anti-movement positioning rod (402), and the limiting ring (403) is located above the rectangular mounting plate (401).

7. An energy efficient system for flue gas waste heat recovery as claimed in claim 6 wherein, The smoke containing piece (500) comprises a smoke containing cover (501), a cross mounting frame (502), a movable suction plate (503) and an electric telescopic rod (504); the smoke containing cover (501) is fixedly installed at the top of the energy-saving shell (103); the cross mounting frame (502) is fixedly installed at the top end of the smoke containing cover (501); the movable suction plate (503) is slidingly installed inside the smoke containing cover (501); the electric telescopic rod (504) is provided with two, and the two electric telescopic rods (504) are fixedly installed on the cross mounting frame (502); the output shafts of the two electric telescopic rods (504) are fixedly connected with the movable suction plate (503), and the two electric telescopic rods (504) are also electrically connected with the control panel (700).

8. An energy efficient system for flue gas waste heat recovery as claimed in claim 7 wherein, The shaking detection piece (600) comprises a U-shaped mounting frame (601), an octagonal rod (602), a limiting mounting plate (603) and a blocking disc (604); the U-shaped mounting frame (601) is fixedly installed at the back side of the smoke containing cover (501); the octagonal rod (602) is slidingly installed on the U-shaped mounting frame (601), and the back side of the octagonal rod (602) is flush with the back side of the rectangular mounting seat (101); the limiting mounting plate (603) is fixedly installed at the front end of the octagonal rod (602); the blocking disc (604) is fixedly installed outside the octagonal rod (602), and the blocking disc (604) is located behind the U-shaped mounting frame (601).

9. An energy efficient system for flue gas waste heat recovery as claimed in claim 8 wherein, The shaking detection piece (600) further comprises a support spring b (605), a switch a (606), a switch b (607) and an arc-shaped protrusion (608); the support spring b (605) is sleeved outside the octagonal rod (602), and the support spring b (605) is located between the U-shaped mounting bracket (601) and the blocking disc (604); the switch a (606) is fixedly installed at the rear side of the limiting mounting plate (603), the switch a (606) is in an unpressed state, and the switch a (606) is further electrically connected with the operation panel (700); the switch b (607) is fixedly installed inside the connecting support (102), the switch b (607) is in a pressed state, and the switch b (607) is further electrically connected with the operation panel (700); when the switch a (606) and the switch b (607) are in the pressed state at the same time, the alarm in the operation panel (700) works; the arc-shaped protrusion (608) is fixedly installed at the rear side of the switch b (607).

10. An energy saving method for flue gas heat recovery using an energy saving system for flue gas heat recovery as claimed in claim 7, wherein, The steps are as follows: 1) The rectangular mounting seat (101) is fixedly installed through bolts, and the connecting support (102) is slidably installed on the rectangular mounting seat (101) through a row of dovetail structures; 2) The flue gas pipeline on the fluidized bed boiler is connected with the left end of the energy-saving shell (103), and then the waste heat recovery pipeline is connected with the right end of the energy-saving shell (103); 3) When the metal filter screen (204) needs to be cleaned, the movable baffle (303) is pulled to the right, and the top end of the anti-movement positioning rod (402) is separated from the anti-movement groove (2021); 4) The output shafts of the two electric telescopic rods (504) are intermittently contracted, and the fluidized bed boiler is intermittently started and stopped, so that the particles on the metal filter screen (204) fall into the metal collection box (301); 5) The fluidized bed boiler is closed, and the movable baffle (303) is pushed to the left, so that the top end of the anti-movement positioning rod (402) is inserted into the anti-movement groove (2021); 6) When the alarm in the operation panel (700) works, the worker timely locks the bolts on the rectangular mounting seat (101).

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