Combined energy saver

Abstract

The utility model discloses a combined energy saver which comprises a shell, one side of the shell is provided with an air inlet, and the other side of the shell is provided with an air outlet. A dust filtering assembly is arranged on the side, close to an air inlet, between the inner side walls of the shell, so that a protective filter screen is inserted into one side of the interior of the shell through a reserved groove during use, and meanwhile, a mounting insertion plate is inserted into a stable insertion groove to limit and stabilize the protective filter screen; then, the mounting plate is fixedly mounted on one side of the bottom of the shell through bolts, so that the purpose of stably mounting the protective filter screen on one side of the interior of the shell can be achieved, and high-temperature flue gas entering the energy saver through the gas inlet is filtered through the protective filter screen; according to the energy saver, solid particles contained in the flue gas are prevented from being attached to the heat exchange coil pipe to affect the heat exchange efficiency, meanwhile, the flue gas can be preliminarily purified, the practicability is high, and the protective filter screen can be taken out for cleaning or replacement by detaching the mounting plate after the energy saver is used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of energy savers, in particular to a combined energy saver. Background Art

[0002] When a steam boiler operates, flue gas is continuously discharged. There is still a large amount of waste heat in the discharged flue gas. Direct emission not only causes waste of resources but also exacerbates the greenhouse effect. Based on the requirements of improving resource utilization rate and protecting the environment, an energy saver is needed to recover and reuse the waste heat of the flue gas generated during the operation of the boiler;

[0003] For example, a combined energy saver disclosed in the utility model with the authorization announcement number CN219624089U includes a flue gas recovery and heat exchange system and a steam boiler front outer tube wall heat absorption system. The flue gas recovery and heat exchange system includes a main body shell, and the inner cavity of the main body shell is set as a hot water storage chamber. A heat exchange inner tank is arranged in the hot water storage chamber. The boiler outer tube wall heat absorption system includes a heat absorption tube rack surrounding the steam boiler combustion chamber. Through a reasonably arranged pipeline layout, the flue gas recovery and heat exchange system and the steam boiler outer tube wall heat absorption system are formed into an energy saver combination. It not only has the functions of a traditional energy saver, but also in the structure of the boiler, the boiler outer tube wall heat absorption system extending from the main body shell of the energy saver plays the role of the left and right furnace walls and further heats the water in the flue gas recovery and heat exchange system, and then inputs it into the boiler, greatly improving the thermal utilization efficiency of the boiler body. However, in the process of applying this technical solution, the flue gas with waste heat discharged from the steam boiler contains more solid particles. After the flue gas enters the energy saver, the solid particles are easily attached to the heat exchange structure, affecting its heat exchange performance, and thus affecting the performance of the energy saver. There is a technical problem that the flue gas with waste heat entering the energy saver cannot be filtered. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a combined energy saver, which can solve the technical problem that the flue gas with waste heat discharged from the steam boiler contains more solid particles. After the flue gas enters the energy saver, the solid particles are easily attached to the heat exchange structure, affecting its heat exchange performance, and thus affecting the performance of the energy saver. There is a technical problem that the flue gas with waste heat entering the energy saver cannot be filtered.

[0005] To solve the above technical problems, the present utility model provides the following technical solution: A combined energy saver, comprising a housing, an air inlet is provided on one side of the housing, an air outlet is provided on the other side of the housing, a combined flange is provided on one side outside the air inlet and the air outlet, a heat exchange coil is provided between the two ends inside the housing, a connecting pipe is provided at the top of the front end and the bottom of the rear end of the housing, a water inlet is provided at the front end of the connecting pipe, a water outlet is provided at the rear end of the connecting pipe, a protective filter screen is provided on one side inside the housing, a reserved groove is provided on one side at the bottom end inside the housing, a mounting plate is provided on one side of the bottom of the housing, mounting insertion plates are provided at both ends of the protective filter screen, stable insertion slots are provided on one side of both ends inside the housing, and a heat insulation component is provided on the inner side wall of the housing.

[0006] As a preferred technical solution of the present utility model, the bottom end of the protective filter screen penetrates through the reserved groove and is fixedly connected to the top of the mounting plate, and the mounting plate is fixedly connected to one side of the bottom of the housing by bolts.

[0007] As a preferred technical solution of the present utility model, the stable insertion slots are symmetrically arranged inside the housing, and the mounting insertion plates are inserted into the inside of the stable insertion slots.

[0008] As a preferred technical solution of the present utility model, the heat exchange coils are arranged at equal intervals between the two ends inside the housing, the front end of the heat exchange coil penetrates through the top of the front end inside the housing and is connected and communicated with the connecting pipe, and the rear end of the heat exchange coil penetrates through the bottom of the rear end inside the housing and is connected and communicated with the connecting pipe.

[0009] As a preferred technical solution of the present utility model, the heat insulation component includes a heat insulation plate, the heat insulation plate is arranged on the inner side wall of the housing, and a connecting plate is arranged between the outer side of the heat insulation plate and the inner side of the housing.

[0010] As a preferred technical solution of the present utility model, the connecting plates are arranged at equal intervals between the outer side of the heat insulation plate and the inner side of the housing.

[0011] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0012] 1. By providing a dust filtering assembly on one side of the inner side wall of the housing near the air inlet, during use, the protective filter screen is inserted into one side of the inner part of the housing through the reserved slot. At the same time, the installation insertion plate is inserted into the stable slot to limit and stabilize the protective filter screen. Subsequently, the installation plate is fixedly installed on one side of the bottom of the housing through bolts, thus achieving the purpose of firmly installing the protective filter screen on one side of the inner part of the housing. The high-temperature flue gas entering the energy saver through the air inlet is filtered by the protective filter screen, avoiding the attachment of solid particles contained in the flue gas on the heat exchange coil and affecting its heat exchange efficiency. At the same time, the flue gas can also be preliminarily purified. It has strong feasibility, and after the energy saver is used for a long time, the installation plate can be removed to take out the protective filter screen for cleaning or replacement;

[0013] 2. By providing a heat insulation assembly on the inner side wall of the housing, during use, the heat insulation plate is arranged on the inner side wall of the housing and fixedly connected to the housing through the connecting plate. The heat insulation plate can reduce the rate of heat dissipation inside the energy saver during operation, thereby making more full use of the waste heat in the flue gas and further optimizing the performance of the energy saver. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a bottom view structural schematic diagram of the present utility model;

[0016] Figure 3 is a partial cross-sectional side view structural schematic diagram of the housing of the present utility model;

[0017] Figure 4 is a partial cross-sectional side view structural schematic diagram of the protective filter screen of the present utility model.

[0018] Among them: 1. Housing; 2. Connecting pipe; 3. Water inlet; 4. Air inlet; 5. Combined flange; 6. Air outlet; 7. Water outlet; 8. Heat exchange coil; 9. Installation plate; 10. Heat insulation plate; 11. Protective filter screen; 12. Connecting plate; 13. Stable slot; 14. Installation insertion plate; 15. Reserved slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified. Embodiment

[0020] Please refer to Figures 1-4 As shown, the present utility model provides a combined energy saver, which includes a housing 1. An air inlet 4 is provided on one side of the housing 1, and an air outlet 6 is provided on the other side of the housing 1. A combined flange 5 is provided on one side outside the air inlet 4 and the air outlet 6. The energy saver is combined and connected to the flue gas conveying pipeline through the combined flange 5. A heat exchange coil 8 is arranged between the two ends inside the housing 1. Connecting pipes 2 are provided at the top of the front end and the bottom of the rear end of the housing 1. The heat exchange coils 8 are arranged at equal intervals between the two ends inside the housing 1. The front end of the heat exchange coil 8 penetrates through the top of the front end inside the housing 1 and is connected and communicated with the connecting pipe 2. The rear end of the heat exchange coil 8 penetrates through the bottom of the rear end inside the housing 1 and is connected and communicated with the connecting pipe 2. A water inlet 3 is provided at the front end of the connecting pipe 2, and a water outlet 7 is provided at the rear end of the connecting pipe 2. After the energy saver is installed, flue gas containing waste heat is introduced through the air inlet 4, and at the same time, a heat exchange medium is introduced through the water inlet 3 into the connecting pipe 2 and is dispersed into the heat exchange coil 8 through the connecting pipe 2. The heat exchange coil 8 absorbs the waste heat contained in the flue gas to heat the medium, and the heated medium is discharged through the water outlet 7, while the flue gas whose waste heat has been absorbed is discharged through the air outlet 6;

[0021] As a further implementation manner of this embodiment, as Figures 1-4 shown, a protective filter screen 11 is provided on one side inside the housing 1. A reserved groove 15 is provided on one side at the bottom end inside the housing 1. An installation plate 9 is provided on one side of the bottom of the housing 1. The installation plate 9 is fixedly connected to one side of the bottom of the housing 1 through bolts. The bottom end of the protective filter screen 11 penetrates through the reserved groove 15 and is fixedly connected to the top of the installation plate 9. Installation insertion plates 14 are provided at both ends of the protective filter screen 11. Stable insertion slots 13 are provided on one side of both ends inside the housing 1. The stable insertion slots 13 are symmetrically arranged inside the housing 1. The installation insertion plates 14 are inserted into the inside of the stable insertion slots 13, so as to achieve the purpose of stabilizing the protective filter screen 11 inside the housing 1. Subsequently, by fixing the installation plate 9 to one side of the bottom of the housing 1 through bolts, the purpose of firmly installing the protective filter screen 11 on one side inside the housing 1 can be achieved. The protective filter screen 11 is used to filter the high-temperature flue gas entering the energy saver through the air inlet 4, so as to prevent solid particles contained in the flue gas from adhering to the heat exchange coil 8 and affecting its heat exchange efficiency, and at the same time, the flue gas can be preliminarily purified;

[0022] During use, the protective filter screen 11 is inserted into one side inside the housing 1 through the reserved groove 15. At the same time, the installation insertion plates 14 are inserted into the inside of the stable insertion slots 13 to limit and stabilize the protective filter screen 11. Subsequently, the installation plate 9 is fixedly installed on one side of the bottom of the housing 1 through bolts, and the protective filter screen 11 can be firmly installed on one side inside the housing 1. The protective filter screen 11 is used to filter the high-temperature flue gas entering the energy saver through the air inlet 4;

[0023] As a further implementation manner of this embodiment, as Figure 1 , Figure 3 and Figure 4 shown, a heat insulation component is provided on the inner side wall of the housing 1. The heat insulation component includes a heat insulation plate 10. The heat insulation plate 10 is arranged on the inner side wall of the housing 1. A connecting plate 12 is arranged between the outer side of the heat insulation plate 10 and the inner side of the housing 1, and the connecting plates 12 are arranged at equal intervals between the outer side of the heat insulation plate 10 and the inner side of the housing 1. The heat insulation plate 10 is stably installed on the inner side wall of the housing 1 through the connecting plate 12. The heat insulation plate 10 can be used to reduce the internal heat dissipation rate during the operation of the energy saver, so as to make more full use of the waste heat in the flue gas and further optimize the performance of the energy saver;

[0024] Specific working principle:

[0025] When using the combined energy saver, first, the energy saver is combined and connected with the flue gas conveying pipeline through the combined flange 5. Then, the protective filter screen 11 is inserted into one side inside the housing 1 through the reserved slot 15. At the same time, the installation plug board 14 is inserted into the inside of the stable slot 13 to limit and stabilize the protective filter screen 11. Then, the installation board 9 is fixedly installed on one side of the bottom of the housing 1 through bolts, and the protective filter screen 11 can be stably installed on one side inside the housing 1. After the energy saver is installed, the flue gas containing waste heat is introduced through the air inlet 4, and at the same time, the heat exchange medium is introduced into the connecting pipe 2 through the water inlet 3. At the same time, the high-temperature flue gas entering the energy saver is filtered through the protective filter screen 11 to prevent the solid particles contained in the flue gas from adhering to the heat exchange coil 8 and affecting its heat exchange efficiency, and is dispersed and introduced into the heat exchange coil 8 through the connecting pipe 2. The heat exchange coil 8 absorbs the waste heat contained in the flue gas to heat the medium, and the heat insulation plate 10 can be used to reduce the internal heat dissipation rate during the operation of the energy saver, so that the energy saver makes more full use of the waste heat in the flue gas. The heated medium is discharged through the water outlet 7, and the flue gas whose waste heat has been absorbed is discharged through the air outlet 6. After the energy saver is used for a long time, the installation board 9 is removed to take out the protective filter screen 11 for cleaning or replacement.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined economizer, comprising a housing (1), characterized in that: An air inlet (4) is provided on one side of the shell (1), an air outlet (6) is provided on the other side of the shell (1), a combined flange (5) is provided on one side outside the air inlet (4) and the air outlet (6), a heat exchange coil (8) is provided between the two ends of the shell (1), a connecting pipe (2) is provided at the top of the front end and the bottom of the rear end of the shell (1), a water inlet (3) is provided at the front end of the connecting pipe (2), and a water outlet (7) is provided at the rear end of the connecting pipe (2), a protective filter screen (11) is provided on one side of the shell (1), a reserved groove (15) is provided on one side of the bottom end of the shell (1), a mounting plate (9) is provided on one side of the bottom of the shell (1), mounting plug plates (14) are provided at both ends of the protective filter screen (11), a stabilizing slot (13) is provided on one side of the two ends of the shell (1), and a heat insulation component is provided on the inner side wall of the shell (1).

2. A combined energy saver according to claim 1, characterized in that: The bottom end of the protective filter screen (11) passes through the reserved groove (15) and is fixedly connected to the top of the mounting plate (9), and the mounting plate (9) is fixedly connected to one side of the bottom of the housing (1) by bolts.

3. A combined energy saver according to claim 1, characterized in that: The stabilizing slots (13) are symmetrically arranged inside the housing (1), and the mounting plug plate (14) is plugged into the inside of the stabilizing slots (13).

4. A combined energy saver according to claim 1, characterized in that: The heat exchange coil (8) is arranged at equal intervals between the two ends inside the shell (1); the front end of the heat exchange coil (8) passes through the top of the front end inside the shell (1) and is connected and communicated with the connecting pipe (2); the rear end of the heat exchange coil (8) passes through the bottom of the rear end inside the shell (1) and is connected and communicated with the connecting pipe (2).

5. The combined energy saver according to claim 1, characterized in that: The heat insulation assembly comprises a heat insulation board (10), wherein the heat insulation board (10) is arranged on an inner side wall of the shell (1), and a connecting board (12) is arranged between the outer side of the heat insulation board (10) and the inner side of the shell (1).

6. A combined energy saver according to claim 5, characterized in that: The outer sides of the connecting plate (12) and the heat insulation plate (10) and the inner side of the shell (1) are arranged at equal intervals.

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