Waste heat recovery device for generator set

Abstract

The utility model relates to the technical field of generator sets, and discloses a waste heat recovery device for a generator set, which comprises a shell, a filter screen, a fan and an exhaust pipe, an air inlet pipe is connected to one end of the shell; the shell comprises an air inlet cavity and a water storage cavity; a temperature sensor is arranged in the water storage cavity; the filter screen is detachably connected into the air inlet cavity; the fan is arranged in the air inlet cavity; and a plurality of groups of stop blocks are arranged in the exhaust pipe. By arranging the filter screen, the exhaust pipe and the water storage cavity, flue gas enters the gas inlet cavity from the gas inlet pipe, impurities in the flue gas are filtered through the filter screen, the situation that heat in the impurities cannot be effectively absorbed due to the fact that the flue gas with the impurities is directly discharged to the outside is prevented, meanwhile, by arranging the stop block in the exhaust pipe, the flowing speed of the flue gas in the exhaust pipe is reduced, and the heat absorption efficiency is improved. According to the flue gas heat exchanger, the flue gas and water in the water storage cavity can be fully subjected to heat exchange, and the water in the water storage cavity is monitored through the temperature sensor, so that the water discharged every time can be stored in a preset temperature range.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, in particular to a waste heat recovery device for generator sets. Background Art

[0002] Generator sets are complete sets of mechanical equipment that convert other forms of energy into electrical energy. They convert the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmit it to the generator, which then converts it into electrical energy and outputs it to electrical equipment for use. Generators are widely used in industrial and agricultural production, national defense, science and technology, and daily life.

[0003] At present, a large amount of flue gas is generated during the operation of the generator set. A waste heat recovery device is usually installed at the exhaust end of the generator set to recover the heat in the flue gas. However, the structure of the existing waste heat recovery device is relatively simple and can only absorb most of the heat, resulting in a small amount of heat being discharged to the outside without being effectively utilized, and the recovery efficiency is low.

[0004] Therefore, there is an urgent need for a waste heat recovery device for a generator set to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a waste heat recovery device for a generator set to solve the problem that the existing waste heat recovery device has a relatively simple structure and can only absorb most of the heat, resulting in a small amount of heat being discharged to the outside without being effectively utilized.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The waste heat recovery device for the generator set comprises:

[0008] A housing, one end of which is connected to an air inlet pipe; the housing comprises an air inlet cavity and a water storage cavity; a temperature sensor for temperature monitoring is provided in the water storage cavity;

[0009] A filter screen, which is detachably connected to the air inlet cavity and is located on one side of the air inlet pipe and is used to remove impurities in the smoke;

[0010] A fan, the fan is arranged in the air inlet cavity and located on one side of the filter screen, and is used for extracting smoke;

[0011] An exhaust pipe is arranged in the water storage cavity; a plurality of groups of blocking blocks are arranged in the exhaust pipe, and the blocking blocks are used to slow down the flow rate of smoke.

[0012] As a preferred solution for the waste heat recovery device for the generator set, the top end of the water storage chamber is connected to a water inlet for water to enter; the bottom end of the water storage chamber is connected to a water outlet for water to discharge.

[0013] As a preferred solution of the waste heat recovery device for the generator set, a first solenoid valve is provided on both the water inlet and the water outlet; and the temperature sensor is electrically connected to the first solenoid valve.

[0014] As a preferred solution for the waste heat recovery device for the generator set, the air intake cavity also includes a cleaning component, which is arranged on the side of the filter close to the air intake pipe and contacts the filter for cleaning impurities on the filter.

[0015] As a preferred solution for a waste heat recovery device for a generator set, the cleaning component includes a cleaning drive, a cleaning blade and a collection box; the cleaning drive is connected to the outer casing through a bracket; the cleaning blade is arranged on the output end of the cleaning drive; the collection box is arranged on the outer casing and is located below the cleaning blade and the filter.

[0016] As a preferred solution of the waste heat recovery device for the generator set, a cleaning brush is provided on the cleaning blade; and the cleaning brush is in conflict with the filter screen.

[0017] As a preferred solution for the waste heat recovery device for the generator set, the outer shell is provided with a mounting seat corresponding to the collecting box, and the mounting seat is located below the cleaning blades and the filter screen; the mounting seat is detachably connected to the collecting box.

[0018] As a preferred solution of the waste heat recovery device for the generator set, a holder is provided between the shell and the filter, and the filter is slidably connected to the holder.

[0019] As a preferred solution for the waste heat recovery device for a generator set, a quick-release component is provided between the outer shell and the filter, and the quick-release component includes a pull rod and a spring; the pull rod is slidably provided on the outer shell; one end of the pull rod passes through the outer shell and extends into the filter; the spring is provided between the outer shell and the holder, and is sleeved on the outside of the spring; the pull rod can enter or detach from one end of the filter.

[0020] The beneficial effects of the utility model are:

[0021] By setting a filter, an exhaust pipe and a water storage chamber, the flue gas enters the intake chamber from the intake pipe, and the impurities in the flue gas are filtered through the filter, so that the impurities are isolated on the filter, preventing the flue gas from being directly discharged to the outside with the impurities, resulting in the heat in the impurities cannot be effectively absorbed. At the same time, by setting a blocking block in the exhaust pipe, the flow speed of the flue gas in the exhaust pipe is reduced, so that the flue gas and the water in the water storage chamber can fully exchange heat, thereby improving its own waste heat recovery efficiency. In addition, the water in the water storage chamber is monitored by a temperature sensor, so that the water discharged each time can be stored in a preset temperature range, thereby improving its own waste heat recovery efficiency and reducing the energy loss of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structural diagram of the waste heat recovery device for the generator set provided by the utility model;

[0023] Figure 2 A schematic diagram of the internal structure of a waste heat recovery device for a generator set provided by the utility model;

[0024] Figure 3 A schematic diagram of the internal structure of the exhaust pipe provided by the utility model;

[0025] Figure 4 for Figure 2 A is an enlarged schematic diagram.

[0026] Among them, the reference numerals in the figure are:

[0027] 10. Shell; 11. Air inlet pipe; 12. Air inlet chamber; 13. Water storage chamber; 131. Water inlet; 132. Water outlet; 133. First solenoid valve; 134. Temperature sensor; 14. Mounting seat; 20. Filter; 21. Holder; 221. Pull rod; 222. Spring; 30. Fan; 40. Exhaust pipe; 41. Blocking block; 51. Cleaning drive member; 52. Cleaning blades; 53. Collection box; 54. Cleaning brush. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present utility model.

[0032] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more than two. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] In one embodiment of the present invention, Figure 1-4 As shown, a waste heat recovery device for a generator set is provided, including a housing 10, a filter 20, a fan 30 and an exhaust pipe 40. An air inlet pipe 11 is connected to one end of the housing 10. The housing 10 includes an air inlet chamber 12 and a water storage chamber 13. A temperature sensor 134 for temperature monitoring is provided in the water storage chamber 13. The filter 20 is detachably connected to the air inlet chamber 12 and is located on one side of the air inlet pipe 11, and is used to remove impurities in the flue gas. The fan 30 is provided in the air inlet chamber 12 and is located on one side of the filter 20, and is used to extract the flue gas. The exhaust pipe 40 is provided in the water storage chamber 13. A plurality of groups of blocking blocks 41 are provided in the exhaust pipe 40, and the blocking blocks 41 are used to slow down the flow rate of the flue gas.

[0034] In this embodiment, a movable door is installed on the surface of the shell 10 corresponding to the air inlet cavity 12. During daily maintenance, since the filter 20 is detachably connected to the air inlet cavity 12, the filter 20 can be replaced by opening the movable door, which simplifies the replacement steps of the filter 20.

[0035] In this embodiment, a sealant is installed between the connection between the exhaust pipe 40 and the water storage chamber 13. By providing the sealant, water leakage in the water storage chamber 13 is prevented, and the sealing performance of the water storage chamber 13 is improved.

[0036] By setting up the filter 20, the exhaust pipe 40 and the water storage chamber 13, the flue gas enters the intake chamber 12 from the intake pipe 11, and the impurities in the flue gas are filtered by the filter 20, so that the impurities are isolated on the filter 20, so as to prevent the flue gas from being directly discharged to the outside with the impurities, so that the heat in the impurities cannot be effectively absorbed. At the same time, by setting a blocking block 41 in the exhaust pipe 40, the flow speed of the flue gas in the exhaust pipe 40 is reduced, so that the flue gas and the water in the water storage chamber 13 can fully exchange heat, thereby improving the waste heat recovery efficiency. In addition, the water in the water storage chamber 13 is monitored by the temperature sensor 134, so that the water discharged each time can be stored in a preset temperature range, thereby improving its own waste heat recovery efficiency and reducing the energy loss of the unit.

[0037] Preferably, the top of the water storage chamber 13 is connected to a water inlet 131 for water to enter. The bottom of the water storage chamber 13 is connected to a water outlet 132 for water to be discharged. By providing the water inlet 131 and the water outlet 132, water is injected into the water storage chamber 13 through the water inlet 131, so that the water and the flue gas in the exhaust pipe 40 are heat exchanged, and the water after heat exchange is discharged through the water outlet 132, thereby achieving effective absorption of heat in the exhaust gas.

[0038] Furthermore, a first solenoid valve 133 is provided on both the water inlet 131 and the water outlet 132. The temperature sensor 134 is electrically connected to the first solenoid valve 133. In this embodiment, a controller for controlling the function is installed on the housing 10, and the controller is electrically connected to the first solenoid valve 133 and the temperature sensor 134, respectively. The temperature of the water in the water storage chamber 13 is monitored by the temperature sensor 134. When the temperature reaches a preset temperature, the first solenoid valve 133 on the water outlet 132 opens to discharge the water at the preset temperature, so that the water discharged each time can be stabilized within the preset temperature range, thereby improving the waste heat recovery efficiency.

[0039] Preferably, the air inlet cavity 12 further includes a cleaning component, which is disposed on the side of the filter 20 close to the air inlet pipe 11 and contacts the filter 20, and is used to clean impurities on the filter 20. The cleaning component cleans the surface of the filter 20 to prevent clogging of the filter 20, thereby ensuring the gas flowability.

[0040] Specifically, the cleaning component includes a cleaning drive 51, a cleaning blade 52 and a collection box 53. The cleaning drive 51 is a motor, and the cleaning drive 51 is connected to the housing 10 through a bracket. The cleaning blade 52 is arranged on the output end of the cleaning drive 51. The collection box 53 is arranged on the housing 10 and is located below the cleaning blade 52 and the filter 20. When the cleaning drive 51 is started, the cleaning drive 51 drives the cleaning blade 52 to rotate to clean the filter 20, so that impurities on the filter 20 fall into the collection box 53 and are recovered through the collection box 53.

[0041] Furthermore, a cleaning brush 54 is provided on the cleaning blade 52. The cleaning brush 54 conflicts with the filter 20. By providing the cleaning brush 54, the filter 20 is cleaned by the cleaning brush 54, thereby improving the cleaning effect thereof and preventing impurities from accumulating on the filter 20 for a long time and causing blockage.

[0042] Furthermore, the housing 10 is provided with a mounting seat 14 corresponding to the collection box 53, and the mounting seat 14 is located below the cleaning blade 52 and the filter screen 20. The mounting seat 14 is detachably connected to the collection box 53. The detachable connection between the mounting seat 14 and the collection box 53 facilitates the staff to handle the impurities in the collection box 53 in a timely manner, simplifies the disassembly steps of the collection box 53, and improves the replacement efficiency of the collection box 53.

[0043] Preferably, a holder 21 is provided between the housing 10 and the filter 20, and the filter 20 is slidably connected to the holder 21. A quick-release component is provided between the housing 10 and the filter 20, and the quick-release component includes a pull rod 221 and a spring 222. The pull rod 221 is slidably provided on the housing 10. One end of the pull rod 221 passes through the housing 10 and extends into the filter 20. The spring 222 is provided between the housing 10 and the holder 21, and is sleeved on the outside of the spring 222. The pull rod 221 can enter or leave one end of the filter 20. When replacing the filter 20, pull the pull rod 221 outward so that the end of the pull rod 221 close to the filter 20 is detached from the filter 20, then take the filter 20 out of the holder 21 and replace it with a new filter 20; after replacing the filter 20, release the pull rod 221, and under the action of the spring 222, the end of the pull rod 221 close to the filter 20 is always in contact with the outside of the filter 20 until the end of the pull rod 221 close to the filter 20 is inserted into the filter 20, thereby fixing the filter 20.

[0044] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A waste heat recovery device for a generator set, characterized in that: include: A housing, one end of which is connected to an air inlet pipe; the housing comprises an air inlet cavity and a water storage cavity; a temperature sensor for temperature monitoring is provided in the water storage cavity; A filter screen, which is detachably connected to the air inlet cavity and is located on one side of the air inlet pipe and is used to remove impurities in the smoke; A fan, the fan is arranged in the air inlet cavity and located on one side of the filter screen, and is used for extracting smoke; An exhaust pipe is arranged in the water storage cavity; a plurality of groups of blocking blocks are arranged in the exhaust pipe, and the blocking blocks are used to slow down the flow rate of smoke.

2. The waste heat recovery device for a generator set according to claim 1, characterized in that: The top end of the water storage cavity is connected to a water inlet for water to enter; the bottom end of the water storage cavity is connected to a water outlet for water to discharge.

3. The waste heat recovery device for a generator set according to claim 2, characterized in that: The water inlet and the water outlet are both provided with a first solenoid valve; the temperature sensor is electrically connected to the first solenoid valve.

4. The waste heat recovery device for a generator set according to any one of claims 1 to 3, characterized in that: The air inlet cavity also includes a cleaning component, which is arranged on a side of the filter screen close to the air inlet pipe and contacts the filter screen, and is used to clean impurities on the filter screen.

5. The waste heat recovery device for a generator set according to claim 4, characterized in that: The cleaning component includes a cleaning drive, a cleaning blade and a collection box; The cleaning drive member is connected to the housing via a bracket; The cleaning blade is arranged on the output end of the cleaning driving member; the collecting box is arranged on the outer shell and is located below the cleaning blade and the filter screen.

6. The waste heat recovery device for a generator set according to claim 5, characterized in that: A cleaning brush is arranged on the cleaning blade; the cleaning brush conflicts with the filter screen.

7. The waste heat recovery device for a generator set according to claim 5, characterized in that: The shell is provided with a mounting seat corresponding to the collection box, and the mounting seat is located below the cleaning blade and the filter screen; the mounting seat is detachably connected to the collection box.

8. The waste heat recovery device for a generator set according to any one of claims 1 to 3, characterized in that: A holder is arranged between the shell and the filter screen, and the filter screen is slidably connected with the holder.

9. The waste heat recovery device for a generator set according to claim 8, characterized in that: A quick-release component is provided between the outer shell and the filter, and the quick-release component includes a pull rod and a spring; the pull rod is slidably provided on the outer shell; one end of the pull rod passes through the outer shell and extends into the filter; the spring is provided between the outer shell and the holder, and is sleeved on the outside of the spring; the pull rod can enter or detach from one end of the filter.

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