Engine exhaust gas recycling device for a genset

Abstract

The utility model belongs to the field of engine tail gas treatment technology especially relates to a generator set engine tail gas recycling device, including base, water tank, first water inlet, first water outlet, filter box, second water inlet and second water outlet, water tank installation is in the left side of base top, and the first water inlet is connected in the left side of water tank top, and the first water outlet is connected in the left side lower extreme of water tank, and the filter box is installed in the right side of base top, and the recovery device is provided with in the base top, and the recovery device includes heat exchange mechanism, stirring mechanism and waste gas treatment mechanism. The generator set engine tail gas recycling device, through setting heat exchange mechanism, when tail gas and filter screen contact, through second spring reduces the hard impact of tail to filter screen, and simultaneously, second spring and first spring reset, will make filter screen reciprocating shake, thereby make the impurity of filter screen surface shake off, prevent filter screen from blocking, prevent the impurity in tail gas from causing the blockage of heat exchange pipe simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of engine exhaust gas treatment technology, specifically to a generator set engine exhaust gas reuse device. Background Technology

[0002] As is well known, diesel generators consume diesel fuel, and the combustion products of diesel engines contain a lot of exhaust gas, which seriously affects the surrounding environment when they are used. In particular, when the generator needs to be transported into the tunnel for use in tunnel excavation, the poor air circulation makes the working environment extremely harsh and seriously affects people's health.

[0003] Although exhaust gas absorption devices have been installed on existing generator sets, the effect is not good, and most of the heat carried in the exhaust gas is directly discharged, making it inconvenient to reuse it, thus resulting in energy waste.

[0004] As disclosed in CN221896678U, a generator set engine exhaust gas recycling device involves transporting exhaust gas through a first connecting pipe to water in a first filter box. A controller activates a drive motor, which in turn rotates a rotating rod, causing the stirring blades to agitate the water inside. This allows the exhaust gas to fully mix with the water in the first filter box, causing impurities carried in the exhaust gas to settle at the bottom of the first filter box. The exhaust gas then undergoes secondary filtration through three layers in a second filter box before being discharged through four exhaust pipes. After filtration, the wastewater is discharged by opening a second outlet pipe. The second filter device is then separated from the first filter device by removing four fixing bolts. The new second filter device can be installed and replaced by aligning the sealing gasket below with the sealing groove and securing it with the fixing bolts. This design is convenient for use.

[0005] However, the device is unable to filter impurities in the exhaust gas during use, causing impurity particles to adhere to the inner wall of the conveying pipe, resulting in blockage of the conveying pipe and thus affecting the normal treatment of the exhaust gas.

[0006] Therefore, we urgently need to provide a generator set engine exhaust gas recycling device. Utility Model Content

[0007] The purpose of this utility model is to provide a generator set engine exhaust gas reuse device to solve the problem mentioned in the background art that the exhaust gas cannot be filtered during use, resulting in impurity particles adhering to the inner wall of the conveying pipe, causing blockage of the conveying pipe, and thus affecting the normal treatment of exhaust gas.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a generator set engine exhaust gas recycling device, comprising a base, a water tank, a first water inlet, a first water outlet, a filter box, a second water inlet, and a second water outlet. The water tank is installed on the top left side of the base, the first water inlet is connected to the top left side of the water tank, and the first water outlet is connected to the lower left end of the water tank. The filter box is installed on the top right side of the base, the second water inlet is connected to the top right side of the filter box, and the second water outlet is connected to the lower right end of the filter box. A recycling device is provided on the top of the base, the recycling device comprising a heat exchange mechanism, a stirring mechanism, and an exhaust gas treatment mechanism.

[0009] The heat exchange mechanism is located on the top of the base, the stirring mechanism is located inside the water tank and the filter box, and the exhaust gas treatment mechanism is located above the filter box.

[0010] The heat exchange mechanism includes a heat exchange tube, a filter tube, an air inlet pipe, a first spring, a first pressure block, a second spring, a second pressure block, and a filter screen. The heat exchange tube is installed inside the water tank and extends to the inside of the filter box at its right end. The filter tube is connected to the left end of the heat exchange tube via a flange. The air inlet pipe is connected to the left end of the filter tube via a flange. The first spring is fixedly installed at both ends of the right side of the air inlet pipe. The first pressure block is fixedly installed at the right end of the first spring. One end of the second spring is fixedly installed at both ends of the front and rear sides inside the filter tube. The second pressure block is fixedly installed at the left end of the second spring. The filter screen is slidably connected inside the filter tube.

[0011] Preferably, the filter tube has a sliding groove inside, and the filter screen has protrusions at both ends, with the protrusions slidably connected in the sliding groove. The filter screen is located between the first pressure block and the second pressure block. When the exhaust gas enters the filter tube through the intake pipe, the second spring reduces the hard impact of the exhaust gas on the filter screen. At the same time, the second spring and the first spring reset, causing the filter screen to shake back and forth, thereby shaking off the impurities on the surface of the filter screen and preventing the filter screen from clogging.

[0012] Preferably, the heat exchange tubes are curved and distributed inside the water tank to increase the flow time of the exhaust gas inside the water tank and improve the heat utilization efficiency of the exhaust gas.

[0013] Preferably, valves are installed inside the first inlet, the first outlet, the second inlet, and the second outlet to control the opening and closing of the first inlet, the first outlet, the second inlet, and the second outlet.

[0014] Preferably, the stirring mechanism includes a first motor and a stirring rod, wherein the first motor is fixedly installed at the bottom of the base, and the stirring rod is fixedly installed at the output end of the first motor and extends into the water tank.

[0015] Preferably, the stirring rod is located at the lower end of the heat exchange tube. By starting the first motor, the stirring rod is driven to rotate, which agitates the water inside the water tank, so that the water is in full contact with the heat exchange tube, thereby improving the heat exchange efficiency of the heat exchange tube and thus improving the heat utilization efficiency of the exhaust gas.

[0016] Preferably, the waste gas treatment mechanism includes a second motor, a second stirring rod, a connecting pipe, a treatment box, an activated carbon layer, and an exhaust pipe. The second motor is fixedly installed at the bottom of the base, the second stirring rod is fixedly installed at the output end of the second motor and located inside the filter box, the connecting pipe is installed at the top of the filter box, the treatment box is installed at the top of the connecting pipe, the activated carbon layer is installed inside the treatment box, and the exhaust pipe is connected to the top of the treatment box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The generator set uses an engine exhaust gas reuse device. By setting up a heat exchange mechanism, when the exhaust gas comes into contact with the filter screen, the second spring reduces the hard impact of the exhaust gas on the filter screen. At the same time, the second spring and the first spring reset, causing the filter screen to shake back and forth, thereby shaking off the impurities on the surface of the filter screen and preventing the filter screen from clogging. It also prevents impurities in the exhaust gas from clogging the heat exchange tubes.

[0019] 2. The generator set uses an engine exhaust gas reuse device. By setting up a stirring mechanism, the first motor drives the stirring rod to rotate, which stirs the water inside the water tank, so that the water can fully contact the heat exchange tube, thereby improving the heat exchange efficiency of the heat exchange tube and thus improving the exhaust gas heat utilization efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the filter box and water tank of this utility model;

[0022] Figure 3 This is an exploded view of the connection between the air intake pipe and the filter pipe of this utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure at the connection between the filter tube and the air inlet tube of this utility model.

[0024] Figure 5 This is a cross-sectional view of the internal structure of the processing box of this utility model.

[0025] In the diagram: 1. Base; 2. Water tank; 3. First water inlet; 4. First water outlet; 5. Filter box; 6. Second water inlet; 7. Second water outlet; 801. Heat exchange tube; 802. Filter tube; 803. Air inlet pipe; 804. First spring; 805. First pressure block; 806. Second spring; 807. Second pressure block; 808. Filter screen; 901. First motor; 902. Stirring rod one; 1001. Second motor; 1002. Stirring rod two; 1003. Connecting pipe; 1004. Processing box; 1005. Activated carbon layer; 1006. Exhaust pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] Current technology is unable to filter impurities in exhaust gas during use, causing impurity particles to adhere to the inner wall of the delivery pipe, leading to blockage and affecting the normal treatment of exhaust gas. Please refer to [link / reference needed]. Figures 1-5 This embodiment provides a generator set engine exhaust gas recycling device that can prevent filter clogging and prevent impurities in the exhaust gas from clogging the heat exchange tubes. The generator set engine exhaust gas recycling device includes a base 1, a water tank 2, a first water inlet 3, a first water outlet 4, a filter box 5, a second water inlet 6, and a second water outlet 7. The water tank 2 is installed on the top left side of the base 1. The first water inlet 3 is connected to the top left side of the water tank 2, and the first water outlet 4 is connected to the lower left side of the water tank 2. The filter box 5 is installed on the top right side of the base 1. The second water inlet 6 is connected to the top right side of the filter box 5, and the second water outlet 7 is connected to the lower right side of the filter box 5. Valves are installed inside the first water inlet 3, the first water outlet 4, the second water inlet 6, and the second water outlet 7 to control their opening and closing. A recycling device is provided on the top of the base 1, which includes a heat exchange mechanism, a stirring mechanism, and an exhaust gas treatment mechanism.

[0029] The heat exchange mechanism is located at the top of the base 1, the stirring mechanism is located inside the water tank 2 and the filter box 5, and the exhaust gas treatment mechanism is located above the filter box 5.

[0030] The heat exchange mechanism includes a heat exchange tube 801, a filter tube 802, an air inlet pipe 803, a first spring 804, a first pressure block 805, a second spring 806, a second pressure block 807, and a filter screen 808. The heat exchange tube 801 is installed inside the water tank 2 and extends to the inside of the filter box 5 at its right end. The heat exchange tube 801 is curved and distributed inside the water tank 2 to increase the flow time of the exhaust gas inside the water tank 2 and improve the heat utilization efficiency of the exhaust gas. The filter tube 802 is connected to the left end of the heat exchange tube 801 through a flange. The air inlet pipe 803 is connected to the left end of the filter tube 802 through a flange. The first spring 804 is fixedly installed at both ends of the right side of the air inlet pipe 803, and the filter screen 808 is pressed by the first spring 804. The first pressure block 805 is fixedly installed at the right end of the first spring 804. One end of the second spring 806 is fixedly installed on both ends of the filter tube 802. Because the first spring 804 and the second spring 805 are connected, the filter screen 808 is pressed. The instability of the filter 808 caused by the exhaust gas impacting it causes the filter 808 to sway left and right, shaking off impurities from its surface and improving exhaust gas filtration efficiency, thereby increasing the heat utilization rate of the exhaust gas. The second pressure block 807 is fixedly installed on the left end of the second spring 806. The filter 808 is slidably connected to the inside of the filter tube 802. The filter tube 802 has a sliding groove inside, and the front and rear ends of the filter 808 have protrusions that are slidably connected in the sliding groove. The filter 808 is located between the first pressure block 805 and the second pressure block 807. When the exhaust gas enters the filter tube 802 through the intake pipe 803, the second spring 806 reduces the hard impact of the exhaust gas on the filter 808. At the same time, the second spring 806 and the first spring 804 reset, causing the filter 808 to sway back and forth, thereby shaking off impurities from its surface and preventing the filter 808 from becoming clogged.

[0031] To improve the purification quality of exhaust gas and prevent harmful substances in the exhaust gas from polluting the surrounding environment, this device is also equipped with an exhaust gas treatment mechanism. The exhaust gas treatment mechanism includes a second motor 1001, a second stirring rod 1002, a connecting pipe 1003, a treatment box 1004, an activated carbon layer 1005, and an exhaust pipe 1006. The second motor 1001 is fixedly installed at the bottom of the base 1. The second stirring rod 1002 is fixedly installed at the output end of the second motor 1001 and located inside the filter box 5. The connecting pipe 1003 is installed at the top of the filter box 5. The treatment box 1004 is installed at the top of the connecting pipe 1003. The activated carbon layer 1005 is installed inside the treatment box 1004. The exhaust pipe 1006 is connected to the top of the treatment box 1004.

[0032] Example 2:

[0033] Based on Example 1, please refer to Figures 1-5To ensure that the water in the water tank 2 fully contacts the heat exchange tube 801 and improves the utilization efficiency of exhaust gas heat, this device is also equipped with a stirring mechanism. The stirring mechanism includes a first motor 901 and a stirring rod 902. The first motor 901 is fixedly installed at the bottom of the base 1, and the stirring rod 902 is fixedly installed at the output end of the first motor 901 and extends into the water tank 2. The stirring rod 902 is located at the lower end of the heat exchange tube 801. By starting the first motor 901, the stirring rod 902 is driven to rotate, which stirs the water in the water tank 2, so that the water fully contacts the heat exchange tube 801, thereby improving the heat exchange efficiency of the heat exchange tube 801 and thus improving the utilization efficiency of exhaust gas heat.

[0034] In operation, exhaust gas is introduced into filter pipe 802 through intake pipe 803, filtered by filter screen 808, and then introduced into heat exchange pipe 801. When the exhaust gas comes into contact with filter screen 808, the second spring 806 reduces the hard impact of the exhaust gas on filter screen 808. At the same time, the second spring 806 and the first spring 804 reset, causing filter screen 808 to shake back and forth, thereby shaking off impurities on the surface of filter screen 808 and preventing filter screen 808 from clogging. When the exhaust gas moves in heat exchange pipe 801, it exchanges heat with the water in water tank 2, heating the water in water tank 2. This is coordinated with the first motor 90. 1. The stirring rod 902 is driven to rotate, stirring the water in the water tank 2, so that the water can fully contact the heat exchange tube 801, thereby improving the heat exchange efficiency of the heat exchange tube 801 and thus improving the heat utilization efficiency of the exhaust gas. Then the exhaust gas is passed into the filter box 5 through the heat exchange tube 801. The stirring rod 1002 is driven by the second motor 1001 to rotate, so that the exhaust gas is mixed with the water in the filter box 5 and the exhaust gas is cleaned. Then the exhaust gas enters the treatment box 1004 along the connecting pipe 1003. After being adsorbed by the activated carbon layer 1005, it is discharged through the exhaust pipe 1006, thus completing the treatment and utilization of the exhaust gas.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A generator set exhaust gas recycling device, comprising a base (1), a water tank (2), a first water inlet (3), a first water outlet (4), a filter box (5), a second water inlet (6), and a second water outlet (7), wherein the water tank (2) is installed on the top left side of the base (1), the first water inlet (3) is connected to the top left side of the water tank (2), the first water outlet (4) is connected to the lower left side of the water tank (2), the filter box (5) is installed on the top right side of the base (1), the second water inlet (6) is connected to the top right side of the filter box (5), and the second water outlet (7) is connected to the lower right side of the filter box (5), characterized in that: The base (1) is provided with a recycling device on top, which includes a heat exchange mechanism, a stirring mechanism and a waste gas treatment mechanism. The heat exchange mechanism is located on the top of the base (1), the stirring mechanism is located inside the water tank (2) and the filter box (5), and the exhaust gas treatment mechanism is located above the filter box (5). The heat exchange mechanism includes a heat exchange tube (801), a filter tube (802), an air inlet pipe (803), a first spring (804), a first pressure block (805), a second spring (806), a second pressure block (807), and a filter screen (808). The heat exchange tube (801) is installed inside the water tank (2) and extends to the inside of the filter box (5) at its right end. The filter tube (802) is connected to the left end of the heat exchange tube (801) via a flange. The air inlet pipe (803) is connected to the left end of the heat exchange tube (801) via a flange. The first spring (804) is fixedly installed on the front and rear ends of the right side of the air intake pipe (803), the first pressure block (805) is fixedly installed on the right end of the first spring (804), one end of the second spring (806) is fixedly installed on the front and rear sides inside the filter tube (802), the second pressure block (807) is fixedly installed on the left end of the second spring (806), and the filter screen (808) is slidably connected inside the filter tube (802).

2. The generator set exhaust gas reuse device according to claim 1, characterized in that: The filter tube (802) has a sliding groove inside, and the filter screen (808) has protrusions at both ends, and the protrusions are slidably connected in the sliding groove. The filter screen (808) is located between the first pressure block (805) and the second pressure block (807).

3. The generator set exhaust gas reuse device according to claim 1, characterized in that: The heat exchange tubes (801) are bent and distributed inside the water tank (2).

4. The generator set exhaust gas recycling device according to claim 1, characterized in that: Valves are installed inside the first inlet (3), the first outlet (4), the second inlet (6), and the second outlet (7).

5. The generator set exhaust gas reuse device according to claim 1, characterized in that: The stirring mechanism includes a first motor (901) and a stirring rod (902). The first motor (901) is fixedly installed at the bottom of the base (1), and the stirring rod (902) is fixedly installed at the output end of the first motor (901) and extends into the water tank (2).

6. The generator set exhaust gas recycling device according to claim 5, characterized in that: The stirring rod (902) is located at the lower end of the heat exchange tube (801).

7. The generator set exhaust gas reuse device according to claim 1, characterized in that: The waste gas treatment mechanism includes a second motor (1001), a second stirring rod (1002), a connecting pipe (1003), a treatment box (1004), an activated carbon layer (1005), and an exhaust pipe (1006). The second motor (1001) is fixedly installed at the bottom of the base (1). The second stirring rod (1002) is fixedly installed at the output end of the second motor (1001) and located inside the filter box (5). The connecting pipe (1003) is installed at the top of the filter box (5). The treatment box (1004) is installed at the top of the connecting pipe (1003). The activated carbon layer (1005) is installed inside the treatment box (1004). The exhaust pipe (1006) is connected to the top of the treatment box (1004).

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