A waste heat recovery device for coal gas production

Abstract

The present invention discloses a waste heat recovery device for coal gas production, which relates to the field of waste heat recovery technology, including a generator, a transmission pipe installed on one side of the generator, and a valve connected to one end of the transmission pipe, the other end of the valve connected to a combustion furnace, and a heating furnace connected to the top of the combustion furnace, a cover plate installed on the top of the heating furnace, and a baffle installed on the top of the cover plate, a connecting rod installed on the inner side of the baffle, and a warning device installed on the bottom of the connecting rod, a rotating shaft installed on the inner side of the connecting rod, and a rotating rod installed on one side of the rotating shaft, and a connecting rope connected to the outer side of the rotating rod. The beneficial effects of the present invention are: warning staff so that discharge can be carried out as soon as water heating is completed, and the staff can be reminded to continue adding water source as soon as discharge is completed, so as to maximize the use of waste heat and avoid the loss of waste heat, and the warning device is completed by a mechanical structure without the need to use other energy sources.

Description

Technical Field

[0001] The present invention relates to the technical field of waste heat recovery, and in particular to a waste heat recovery device for coal gas production. Background Art

[0002] The coke ovens in the coke production system will generate a large amount of extremely high-heat gas during use. The heat of this gas has been ignored by enterprises in the past, resulting in a huge waste of resources. In the current context of my country's construction of ecological sustainable development and realization of energy conservation and emission reduction in enterprises, enterprises have begun to pay attention to the recovery of waste heat from gas and realize the maximum utilization of resources through waste heat recovery devices. The recovery and utilization of waste heat from gas also provides an important way to generate income for enterprises to increase efficiency.

[0003] The existing gas production waste heat recovery device can heat water during the waste heat recovery process to recover the waste heat. After the water is heated, personnel cannot immediately know the degree of water heating. Continuing heating will cause a large amount of heat loss. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste heat recovery device for coal gas production, which solves the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste heat recovery device for coal gas production, comprising a generator, a transmission pipe installed on one side of the generator, and a valve connected to one end of the transmission pipe, the other end of the valve connected to the combustion furnace, and the top of the combustion furnace connected to the heating furnace, a cover plate installed on the top of the heating furnace, and a baffle installed on the top of the cover plate, a connecting rod installed on the inner side of the baffle, and a warning device installed on the bottom of the connecting rod, a rotating shaft installed on the inner side of the connecting rod, and a rotating rod installed on one side of the rotating shaft, the rotating shaft A connecting rope is connected to the outside of the rod, and a bottom block is installed on the inside of the connecting rope, a top block is installed on the top of the bottom block, a water outlet pipe is installed on one side of the heating furnace, and one end of the water outlet pipe is connected to a temperature-controlled water valve, a connecting pipe is installed on the other side of the temperature-controlled water valve, and the bottom of the connecting pipe is connected to an insulation furnace, an insulation layer is provided on the inside of the insulation furnace, a water inlet pipe is passed through the top of the cover plate, and one end of the water inlet pipe is connected to a water pump, and the bottom of the water pump is connected to a water tank, an air inlet pipe is installed on one side of the combustion furnace, and a floating plate is placed inside the heating furnace.

[0006] Optionally, the warning device includes a connecting block connected to the bottom of the connecting rod, and a limiting block is installed inside the connecting block, a spring is installed inside the limiting block, and one end of the spring is installed with a push rod, one end of the push rod is connected to a strike plate, and one side of the strike plate is installed with a strike block, a slider is installed on one side of the strike plate, and one side of the slider is connected to a lifting plate, the bottom of the lifting plate is in contact with a pad, a vertical rod is installed inside the connecting block, and a metal block is installed on one side of the connecting block, a through hole is opened on one side of the connecting block, and a telescopic rod is connected inside the through hole, a top plate is installed at one end of the telescopic rod, and a spring frame is installed on the inner side of the top plate, and a protrusion is installed at the bottom of the lifting plate.

[0007] Optionally, the bottom block is connected to the floating plate via a connecting rope, and the connecting rope passes through the cover plate and is fixedly connected to the floating plate.

[0008] Optionally, the rotating rod forms a rotating structure through a rotating shaft and a connecting rod, and the connecting rod is fixedly connected to the baffle.

[0009] Optionally, the striker plate forms a telescopic structure through a push rod and a spring, and the striker plate is fixedly connected to the push rod.

[0010] Optionally, the collision plate forms a sliding structure with the lifting plate through a slider, and the lifting plate is movably connected to the vertical rod.

[0011] Optionally, the top plate forms a telescopic structure through a spring frame and a connecting block, and the top plate is fixedly connected to a telescopic rod, and the outer diameter of the telescopic rod is smaller than the inner diameter of the through hole.

[0012] Optionally, the connecting pipe is connected to the water outlet pipe through a temperature-controlled water valve, and one end of the water outlet pipe passes through one side of the heating furnace.

[0013] Optionally, the combustion furnace is connected to the insulation furnace through an air inlet pipe, and the air inlet pipe is inserted into the insulation furnace and extends into the interior of the insulation layer.

[0014] The present invention provides a waste heat recovery device for coal gas production, which has the following beneficial effects:

[0015] 1. In this waste heat recovery device for gas production, when the water temperature in the heating furnace rises to a certain temperature, the temperature-controlled water valve will open, allowing the water inside the heating furnace to enter the insulation furnace through the connecting pipe. As the water enters the insulation furnace, the water level of the heating furnace will slowly drop, causing the floating plate floating on the water surface to drop along with the water level. At the same time, the connecting rope at the top is pulled, causing the connecting rope to drive the rotating rod to rotate, and the bottom block at the end of the connecting rope will move upward. When all the water in the heating furnace enters the insulation furnace, the floating plate will drop to the inner bottom of the heating furnace, and the top block on the top of the bottom block will hit the bottom of the bottom block. The protrusion causes the lifting plate on the top of the protrusion to slide with the impact plate through the slider, thereby separating the lifting plate from the impact plate. After separation, the impact plate will expand and contract through the spring frame to allow water to enter, causing the impact plate to move horizontally. The impact block on one side of the impact plate will hit the metal block, making a sound to alert the staff, so that the water can be discharged as soon as it is heated, and the staff can be reminded to continue adding water as soon as the discharge is completed, so as to maximize the use of waste heat and avoid the loss of waste heat. The warning device is completed by a mechanical structure and does not require the use of other energy sources.

[0016] 2. For the waste heat recovery device for gas production, after the hot water is discharged, the personnel can turn on the water pump and draw new water into the heating furnace through the water inlet pipe. The floating plate will float up and the bottom block will recover. The personnel can then manually push the top plate to move the telescopic rod in the through hole, thereby abutting the impact plate. After pushing the impact plate to its original position, the lifting plate will move downward due to gravity, so that the bottom abuts the telescopic rod. Then the telescopic rod is pulled to separate from the bottom of the lifting plate. The lifting plate can be restored and the water can continue to be heated, thereby recycling the waste heat. The warning device can be restored for convenient subsequent use.

[0017] 3. The waste heat recovery device for coal gas production can allow the heat source in the combustion furnace to enter the insulation layer in the insulation furnace through the air inlet pipe, thereby keeping the water in the insulation furnace warm and reducing its cooling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front structural schematic diagram of a waste heat recovery device for coal gas production according to the present invention;

[0019] Figure 2 This is a front cross-sectional structural diagram of a waste heat recovery device for coal gas production according to the present invention;

[0020] Figure 3 The invention relates to a waste heat recovery device for gas production Figure 2 A in the middle is an enlarged structural diagram;

[0021] Figure 4 This is a schematic diagram of the top view of the heating furnace of a waste heat recovery device for coal gas production according to the present invention;

[0022] Figure 5 This is a schematic diagram of the side structure of a connecting rod of a waste heat recovery device for gas production according to the present invention;

[0023] Figure 6 This is a front cross-sectional structural diagram of a connection block of a waste heat recovery device for coal gas production according to the present invention;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the top of a connecting block of a waste heat recovery device for coal gas production according to the present invention;

[0025] Figure 8 The invention relates to a waste heat recovery device for gas production Figure 7 Enlarged structural diagram at point B in the middle.

[0026] Figure: 1, generator; 2, warning device; 201, connecting block; 202, limit block; 203, spring; 204, push rod; 205, striker; 206, lifting plate; 207, bump; 208, pad; 209, vertical rod; 210, metal block; 211, telescopic rod; 212, through hole; 213, top plate; 214, spring frame; 215, slider; 216, striker; 3 , valve; 4. combustion furnace; 5. heating furnace; 6. baffle; 7. water outlet pipe; 8. temperature-controlled water valve; 9. connecting pipe; 10. insulation furnace; 11. air inlet pipe; 12. insulation layer; 13. cover plate; 14. floating plate; 15. connecting rope; 16. connecting rod; 17. transmission pipe; 18. bottom block; 19. rotating rod; 20. rotating shaft; 21. top block; 22. water inlet pipe; 23. water pump; 24. water tank. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] See also Figure 1-5 The present invention provides a technical solution: a waste heat recovery device for coal gas production, including a generator 1, a warning device 2, a connecting block 201, a limit block 202, a spring 203, a push rod 204, a striker 205, a lifting plate 206, a protrusion 207, a pad 208, a vertical rod 209, a metal block 210, a telescopic rod 211, a through hole 212, a top plate 213, a spring frame 214, a slider 215, a striker 216, a valve 3, a combustion furnace 4, a heating furnace 5, Baffle 6, water outlet pipe 7, temperature control water valve 8, connecting pipe 9, insulation furnace 10, air inlet pipe 11, insulation layer 12, cover plate 13, floating plate 14, connecting rope 15, connecting rod 16, transmission pipe 17, bottom block 18, rotating rod 19, rotating shaft 20, top block 21, water inlet pipe 22, water pump 23 and water tank 24. A transmission pipe 17 is installed on one side of the generator 1, and one end of the transmission pipe 17 is connected to the valve 3, the other end of the valve 3 is connected to the combustion furnace 4, and the top of the combustion furnace 4 The heating furnace 5 is connected, the top of the heating furnace 5 is installed with a cover plate 13, and the top of the cover plate 13 is installed with a baffle 6, the inner side of the baffle 6 is installed with a connecting rod 16, and the bottom of the connecting rod 16 is installed with a warning device 2, the inner side of the connecting rod 16 is installed with a rotating shaft 20, and one side of the rotating shaft 20 is installed with a rotating rod 19, the outer side of the rotating rod 19 is connected with a connecting rope 15, and the inner side of the connecting rope 15 is installed with a bottom block 18, and the top of the bottom block 18 is installed with a top block 21. A water outlet pipe 7 is installed on the side, and one end of the water outlet pipe 7 is connected to a temperature-controlled water valve 8, a connecting pipe 9 is installed on the other side of the temperature-controlled water valve 8, and the bottom of the connecting pipe 9 is connected to an insulation furnace 10, an insulation layer 12 is provided on the inner side of the insulation furnace 10, a water inlet pipe 22 is passed through the top of the cover plate 13, and one end of the water inlet pipe 22 is connected to a water pump 23, and the bottom of the water pump 23 is connected to a water tank 24, an air inlet pipe 11 is installed on one side of the combustion furnace 4, and a floating plate 14 is placed inside the heating furnace 5.

[0031] like Figure 6 and Figure 7As shown, the interior of the warning device 2 includes a connecting block 201 connected to the bottom of the connecting rod 16, and a limit block 202 is installed inside the connecting block 201, a spring 203 is installed inside the limit block 202, and a push rod 204 is installed at one end of the spring 203, and a striker 205 is connected to one end of the push rod 204, and a striker block 216 is installed on one side of the striker 205, and a slider 215 is installed on one side of the striker 205, and a lifting device 216 is installed on one side of the slider 215. Plate 206, the bottom of the lifting plate 206 is in contact with a pad 208, a vertical rod 209 is installed inside the connecting block 201, and a metal block 210 is installed on one side of the interior of the connecting block 201, a through hole 212 is opened on one side of the connecting block 201, and a telescopic rod 211 is connected to the inside of the through hole 212, a top plate 213 is installed at one end of the telescopic rod 211, and a spring frame 214 is installed on the inner side of the top plate 213, and a protrusion 207 is installed at the bottom of the lifting plate 206.

[0032] like Figure 2 and Figure 3 As shown, the bottom block 18 is connected to the float plate 14 through a connecting rope 15, and the connecting rope 15 passes through the cover plate 13 and is fixedly connected to the float plate 14. When the water level of the heating furnace 5 drops, the float plate 14 floating on the water surface will drop along with the water level, and at the same time, the top connecting rope 15 will be pulled, so that the connecting rope 15 drives the rotating rod 19 to rotate, and the bottom block 18 at the end of the connecting rope 15 will move upward.

[0033] like Figure 4 and Figure 5 As shown, the rotating rod 19 forms a rotating structure with the connecting rod 16 through the rotating shaft 20, and the connecting rod 16 is fixedly connected to the baffle 6. The connecting rope 15 can drive the rotating rod 19 to rotate, and the bottom block 18 at the end of the connecting rope 15 will move upward.

[0034] like Figure 7 As shown, the impact plate 205 forms a telescopic structure through the push rod 204 and the spring 203, and the impact plate 205 is fixedly connected to the push rod 204. After the lifting plate 206 is separated from the impact plate 205, the impact plate 205 will be expanded and contracted by water through the spring frame 214, so that the impact plate 205 moves horizontally, and the impact block 216 on one side of the impact plate 205 will hit the metal block 210, making a sound to alert the staff.

[0035] like Figure 7 and Figure 8 As shown, the collision plate 205 forms a sliding structure with the lifting plate 206 through the slider 215, and the lifting plate 206 is movably connected to the vertical rod 209. The lifting plate 206 can slide with the collision plate 205 through the slider 215, so that the collision plate 205 is separated from the lifting plate 206.

[0036] like Figure 7As shown, the top plate 213 forms a telescopic structure with the connecting block 201 through the spring frame 214, and the top plate 213 is fixedly connected to the telescopic rod 211. The outer diameter of the telescopic rod 211 is smaller than the inner diameter of the through hole 212. A person manually pushes the top plate 213 to make the telescopic rod 211 move in the through hole 212, thereby abutting the impact plate 205. After pushing the impact plate 205 to its original position, the lifting plate 206 will move downward by gravity, so that the bottom abuts the telescopic rod 211, and then pull the telescopic rod 211 to make the telescopic rod 211 detach from the bottom of the lifting plate 206, and the lifting plate 206 can be restored.

[0037] like Figure 1 and Figure 2 As shown, the connecting pipe 9 is connected to the water outlet pipe 7 through the temperature-controlled water valve 8, and one end of the water outlet pipe 7 passes through one side of the heating furnace 5. When the water temperature in the heating furnace 5 rises to a certain temperature, the temperature-controlled water valve 8 will open, allowing the water inside the heating furnace 5 to enter the insulation furnace 10 through the connecting pipe 9.

[0038] like Figure 1 As shown, the combustion furnace 4 is connected to the insulation furnace 10 through the air inlet pipe 11, and the air inlet pipe 11 is inserted into the insulation furnace 10 and extends to the inside of the insulation layer 12. The heat source in the combustion furnace 4 can enter the insulation layer 12 in the insulation furnace 10 through the air inlet pipe 11, thereby insulating the water in the insulation furnace 10 and reducing its cooling rate.

[0039] In summary, when the waste heat recovery device for coal gas production is used, waste heat will remain after the combustion in the generator 1 is completed. When the waste heat is recovered, the valve 3 is opened to allow the waste heat in the generator 1 to enter the combustion furnace 4 through the transmission pipe 17. The temperature inside the combustion furnace 4 increases, thereby heating the heating furnace 5 on the top, and the water inside the heating furnace 5 will increase in temperature. When the water temperature rises to a certain temperature, the temperature-controlled water valve 8 will open, thereby allowing the water inside the heating furnace 5 to enter the insulation furnace 10 through the connecting pipe 9. When the water enters the insulation furnace 10, , the water level of the heating furnace 5 will slowly drop, causing the floating plate 14 floating on the water surface to drop along with the water level, and at the same time pulling the connecting rope 15 at the top, so that the connecting rope 15 drives the rotating rod 19 to rotate, and the bottom block 18 at the end of the connecting rope 15 will move upward. When all the water in the heating furnace 5 enters the insulation furnace 10, the floating plate 14 will drop to the inner bottom of the heating furnace 5, and at the same time, the top block 21 on the top of the bottom block 18 will hit the protrusion 207, so that the lifting plate 206 on the top of the protrusion 207 slides with the collision plate 205 through the slider 215, thereby The lifting plate 206 is separated from the impact plate 205. After separation, the impact plate 205 will be expanded and contracted by water through the spring frame 214, so that the impact plate 205 moves in the horizontal direction. The impact block 216 on one side of the impact plate 205 will hit the metal block 210, making a sound to alert the staff that the hot water has been discharged. The staff can then turn on the water pump 23 and pump new water into the heating furnace 5 through the water inlet pipe 22. The floating plate 14 floats up and the bottom block 18 will recover. Then the staff manually pushes the top plate 213 so that the telescopic rod 211 is in the through hole 2 12 moves in the middle, thereby abutting the impact plate 205. After pushing the impact plate 205 to its original position, the lifting plate 206 will move downward due to gravity, so that the bottom abuts the telescopic rod 211, and then the telescopic rod 211 is pulled to make the telescopic rod 211 separate from the bottom of the lifting plate 206. The lifting plate 206 can be restored and can continue to heat the water, thereby recycling the waste heat. The heat source in the combustion furnace 4 can enter the insulation layer 12 in the insulation furnace 10 through the air inlet pipe 11, thereby keeping the water in the insulation furnace 10 warm and reducing its cooling rate.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A waste heat recovery device for coal gas production, comprising a generator (1), characterized in that: A transmission pipe (17) is installed on one side of the generator (1), and one end of the transmission pipe (17) is connected to a valve (3), the other end of the valve (3) is connected to a combustion furnace (4), and the top of the combustion furnace (4) is connected to a heating furnace (5), a cover plate (13) is installed on the top of the heating furnace (5), and a baffle (6) is installed on the top of the cover plate (13), a connecting rod (16) is installed on the inner side of the baffle (6), and a warning device (2) is installed on the bottom of the connecting rod (16), a rotating shaft (20) is installed on the inner side of the connecting rod (16), and a rotating rod (19) is installed on one side of the rotating shaft (20), and a connecting rope (15) is connected to the outer side of the rotating rod (19), and the connecting rope A bottom block (18) is installed on the inner side of (15), and a top block (21) is installed on the top of the bottom block (18). A water outlet pipe (7) is installed on one side of the heating furnace (5), and one end of the water outlet pipe (7) is connected to a temperature-controlled water valve (8). A connecting pipe (9) is installed on the other side of the temperature-controlled water valve (8), and the bottom of the connecting pipe (9) is connected to a heat-insulating furnace (10). A heat-insulating layer (12) is provided on the inner side of the heat-insulating furnace (10). A water inlet pipe (22) is passed through the top of the cover plate (13), and one end of the water inlet pipe (22) is connected to a water pump (23), and the bottom of the water pump (23) is connected to a water tank (24). An air inlet pipe (11) is installed on one side of the combustion furnace (4). A floating plate (14) is placed inside the heating furnace (5), the interior of the warning device (2) includes a connecting block (201) connected to the bottom of the connecting rod (16), and a limit block (202) is installed inside the connecting block (201), a spring (203) is installed inside the limit block (202), and a push rod (204) is installed at one end of the spring (203), one end of the push rod (204) is connected to a collision plate (205), and a collision block (216) is installed on one side of the collision plate (205), a slider (215) is installed on one side of the collision plate (205), and a lifting plate (206) is connected to one side of the slider (215), and the bottom of the lifting plate (206) contacts the bottom of the lifting plate (206). A pad block (208) is connected, a vertical rod (209) is installed inside the connecting block (201), and a metal block (210) is installed on one side of the connecting block (201), a through hole (212) is opened on one side of the connecting block (201), and a telescopic rod (211) is connected inside the through hole (212), one end of the telescopic rod (211) is installed with a top plate (213), and a spring frame (214) is installed on the inner side of the top plate (213), a protrusion (207) is installed at the bottom of the lifting plate (206), and the bottom block (18) is connected to the floating plate (14) through a connecting rope (15), and the connecting rope (15) passes through the cover plate (13) and is fixedly connected to the floating plate (14).

2. The waste heat recovery device for coal gas production according to claim 1, characterized in that: The rotating rod (19) forms a rotating structure with the connecting rod (16) via the rotating shaft (20), and the connecting rod (16) is fixedly connected to the baffle (6).

3. The waste heat recovery device for coal gas production according to claim 2, characterized in that: The striker plate (205) forms a telescopic structure through the push rod (204) and the spring (203), and the striker plate (205) and the push rod (204) are fixedly connected.

4. The waste heat recovery device for coal gas production according to claim 2, characterized in that: The collision plate (205) forms a sliding structure with the lifting plate (206) via the slider (215), and the lifting plate (206) is movably connected to the vertical rod (209).

5. The waste heat recovery device for coal gas production according to claim 2, characterized in that: The top plate (213) forms a telescopic structure with the connecting block (201) via a spring frame (214), and the top plate (213) is fixedly connected to the telescopic rod (211), wherein the outer diameter of the telescopic rod (211) is smaller than the inner diameter of the through hole (212).

6. The waste heat recovery device for coal gas production according to claim 1, characterized in that: The connecting pipe (9) is connected to the water outlet pipe (7) through the temperature-controlled water valve (8), and one end of the water outlet pipe (7) passes through one side of the heating furnace (5).

7. The waste heat recovery device for coal gas production according to claim 1, characterized in that: The combustion furnace (4) is connected to the insulation furnace (10) via an air inlet pipe (11), and the air inlet pipe (11) is inserted into the insulation furnace (10) and extends into the interior of the insulation layer (12).

Images