Pump valve casting waste heat recycling device

Abstract

The utility model discloses a pump valve casting waste heat recycling device which comprises a base and a smoke outlet pipe. A recovery structure is arranged at the top end of the base, a smoke inlet pipe is installed on one side of the recovery structure, a connecting pipe is installed on one side of the smoke inlet pipe, a sealing structure is arranged at the joint of the connecting pipe and the smoke inlet pipe, and a smoke outlet pipe is installed on one side of the top end of the recovery structure. A filtering structure is arranged at the top end of the smoke outlet pipe, and the recycling structure comprises a first recycling box, a second recycling box, a recycling pipe and a heat exchanger. According to the waste gas recycling device, by arranging the recycling structure, when heat in waste gas is recycled, the heat in the waste gas can be primarily recycled through matched use of the first recycling box and the recycling pipe, casting raw materials in the first recycling box are preheated through the heat in the waste gas, and the subsequent smelting process is facilitated; the heat recovery and reutilization method not only contributes to saving energy, but also can improve the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump valve casting waste heat recovery technical field especially relates to a pump valve casting waste heat recovery and recycling device. BACKGROUND

[0002] Sand casting is one of the most commonly used processes in pump valve casting manufacturing, which uses sand as the main molding material, and through different binders, the sand is bonded together to form the required mold. When casting pump valves, a cupola is generally used to melt the pump valve casting raw materials. The cupola is an important melting equipment widely used in steel, metallurgy, mining and other industries.

[0003] When using a cupola for melting, a large amount of waste gas will be generated. If the waste gas is directly discharged, it will cause waste of heat in the waste gas. In order to reduce the waste of heat in the waste gas, a pump valve casting waste heat recovery and recycling device is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pump valve casting waste heat recovery and recycling device to solve the defect that it is inconvenient to recover the heat in the exhaust gas when the cupola melts the pump valve casting raw materials.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a pump valve casting waste heat recovery and recycling device, comprising a base and a smoke outlet pipe; the top end of the base is provided with a recovery structure, one side of the recovery structure is installed with a smoke inlet pipe, one side of the smoke inlet pipe is installed with a connecting pipe, the connecting pipe and the smoke inlet pipe are provided with a sealing structure at the connecting position, one side of the top end of the recovery structure is installed with a smoke outlet pipe; the top end of the smoke outlet pipe is provided with a filter structure, the recovery structure comprises a first recovery box, a second recovery box, a recovery pipe and a heat exchanger, the first recovery box is installed at the top end of the base, the inside of the bottom end of the first recovery box is installed with a recovery pipe, the second recovery box is installed on one side of the first recovery box, the inside of the second recovery box is installed with a heat exchanger, one end of the recovery pipe is connected with one side of the second recovery box, the top end of the second recovery box is installed with a smoke outlet pipe.

[0006] Preferably, the material of the recovery pipe and the heat exchanger is copper.

[0007] Preferably, the sealing structure comprises a first flange plate, a sealing ring, a second flange plate and a nut, the first flange plate is fixed on one side of the smoke inlet pipe, the second flange plate is fixed on one side of the connecting pipe, the sealing ring is installed between the first flange plate and the second flange plate, and the nut is installed on one side of the second flange plate.

[0008] Preferably, the screw cap is provided with multiple groups, and the multiple groups of the screw cap are annularly distributed on one side of the second flange plate.

[0009] Preferably, the sealing ring is connected to one side of the first flange plate and one side of the second flange plate respectively, and a sealed connection is formed between the first flange plate, the sealing ring and the second flange plate.

[0010] Preferably, the filter structure comprises a mounting cover, a filter seat, activated carbon and a through hole, the filter seat is fixed to the top end of the smoke outlet pipe, the activated carbon is arranged in the filter seat, the mounting cover is arranged on the top end of the filter seat, and the through hole is arranged in the top end of the mounting cover.

[0011] Preferably, the outer side of the filter seat is provided with external threads, the inner side of the mounting cover is provided with internal threads, and the mounting cover and the filter seat are connected in a threaded manner.

[0012] Compared with the prior art, the pump valve casting waste heat recycling device has the advantages that: when in use, the heat in the waste gas can be recycled through the recycling structure, the sealing property of the connection between the connecting pipe and the smoke inlet pipe can be improved through the sealing structure, and the toxic substances in the waste gas can be filtered through the filtering structure, so that the waste gas is not easy to pollute the environment after being discharged.

[0013] When recycling the heat in the waste gas, the heat in the waste gas can be preliminarily recycled through the cooperation of the first recycling tank and the recycling pipe, so that the heat in the waste gas can preheat the casting raw materials in the first recycling tank, and the subsequent smelting process is facilitated, and the heat recycling and reuse can not only save energy, but also improve production efficiency.

[0014] Further, the heat in the waste gas can be secondarily recycled through the cooperation of the second recycling tank and the heat exchanger, and the heat in the waste gas can be exchanged through the heat exchanger, so that the heat in the waste gas can heat the water in the heat exchanger, thereby realizing the secondary recycling of the heat in the waste gas and preventing the waste gas from being directly discharged to waste heat.

[0015] Through the cooperation of the first flange plate and the second flange plate, the connection between the connecting pipe and the smoke inlet pipe is facilitated.

[0016] Further, the sealing property of the connection between the connecting pipe and the smoke inlet pipe can be improved through the use of the sealing ring when the connecting pipe and the smoke inlet pipe are connected, so that the connection between the connecting pipe and the smoke inlet pipe is not easy to leak smoke after being connected, thereby improving the sealing effect.

[0017] Through the filter structure, after the smoke is discharged, through the installation cover, the filter seat and the use of activated carbon, the toxic substances in the smoke can be filtered, the pollution of the smoke to the environment after the discharge is prevented, and the filtering work is completed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a bottom view structural schematic diagram of the utility model;

[0020] Figure 3 It is a front view cross section structural schematic diagram of the utility model;

[0021] Figure 4 It is a filter structure explosion structure front view structural schematic diagram of the utility model;

[0022] Figure 5 It is a filter structure explosion structure bottom view structural schematic diagram of the utility model;

[0023] Figure 6 It is a filter structure of the utility model; Figure 3 It is a local amplification structure schematic diagram of A place in the utility model.

[0024] In the drawing: 1, base; 2, recovery structure; 201, first recovery box; 202, second recovery box; 203, recovery pipe; 204, heat exchanger; 3, connecting pipe; 4, sealing structure; 401, first flange; 402, sealing ring; 403, second flange; 404, nut; 5, smoke inlet pipe; 6, smoke outlet pipe; 7, filter structure; 701, installation cover; 702, filter seat; 703, activated carbon; 704, through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The utility model embodiment provides a pump valve casting waste heat recovery and recycling device, as shown in the figure, including base 1 and smoke outlet pipe 6, the top of base 1 is provided with recovery structure 2, one side of recovery structure 2 is installed with smoke inlet pipe 5, one side of smoke inlet pipe 5 is installed with connecting pipe 3, and the connecting place of connecting pipe 3 and smoke inlet pipe 5 is provided with sealing structure 4, one side of the top of recovery structure 2 is installed with smoke outlet pipe 6, and the top of smoke outlet pipe 6 is provided with filter structure 7. Figures 1-6 The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Further preferably, as shown in the drawings, Figures 1-6 The sealing structure 4 comprises a first flange plate 401, a sealing ring 402, a second flange plate 403 and a nut 404, the first flange plate 401 is fixed on one side of the smoke inlet pipe 5, the second flange plate 403 is fixed on one side of the connecting pipe 3, the sealing ring 402 is installed at the middle of the first flange plate 401 and the second flange plate 403, the nut 404 is installed on one side of the second flange plate 403, the nut 404 is provided with multiple groups, the multiple groups of nuts 404 are distributed in a ring shape on one side of the second flange plate 403, the sealing ring 402 is connected to one side of the first flange plate 401 and the second flange plate 403 respectively, and the first flange plate 401, the sealing ring 402 and the second flange plate 403 are connected in a sealing manner.

[0028] Specifically, when waste gas is subjected to waste heat recovery, the connecting pipe 3 and the smoke outlet pipe 6 are connected, the sealing ring 402 is installed at the middle position of the first flange plate 401 and the second flange plate 403 during connection, the first flange plate 401 and the second flange plate 403 are combined together after installation, the nut 404 is fixed on the fixing rod on one side of the first flange plate 401 to complete the installation between the first flange plate 401 and the second flange plate 403, so that the connection between the connecting pipe 3 and the smoke inlet pipe 5 is more convenient, and the use of the sealing ring 402 can prevent smoke leakage after the connection between the connecting pipe 3 and the smoke inlet pipe 5 is completed, thereby improving the sealing effect.

[0029] Further preferably, as shown in the drawings, Figures 1-6 The top end of the recovery structure 2 is provided with a smoke outlet pipe 6, the top end of the smoke outlet pipe 6 is provided with a filtering structure 7, the recovery structure 2 comprises a first recovery box 201, a second recovery box 202, a recovery pipe 203 and a heat exchanger 204, the first recovery box 201 is installed at the top end of the base 1, the recovery pipe 203 is installed in the bottom end of the first recovery box 201, the second recovery box 202 is installed on one side of the first recovery box 201, the heat exchanger 204 is installed in the second recovery box 202, one end of the recovery pipe 203 is connected to one side of the second recovery box 202, the top end of the second recovery box 202 is provided with the smoke outlet pipe 6, and the materials of the recovery pipe 203 and the heat exchanger 204 are both copper.

[0030] Specifically, when the connecting pipe 3 and the smoke inlet pipe 5 are connected, when the waste gas flows to the inside of the recovery pipe 203 through the connecting pipe 3 and the smoke inlet pipe 5, at this time, the recovery pipe 203 conducts the heat in the waste gas to the inside of the first recovery tank 201, and then the first recovery tank 201 conducts the heat to the casting raw material, preheats the raw material, so that the raw material is melted in the subsequent smelting, the time is shorter, the efficiency is higher, thereby completing the primary recovery of the heat in the waste gas, and after the primary recovery of the waste gas in the recovery pipe 203, the waste gas is discharged to the inside of the second recovery tank 202, at this time, the heat exchanger 204 is used to perform secondary recovery of the waste heat in the waste gas by heat exchange, the water in the heat exchanger 204 is heated, the secondary recovery of the waste heat is completed, and finally the recovery of the heat in the waste gas is completed.

[0031] Further preferably, as shown in the embodiment, Figures 1-6 The filter structure 7 includes a mounting cover 701, a filter seat 702, activated carbon 703 and a through hole 704, the filter seat 702 is fixed to the top end of the smoke outlet pipe 6, the activated carbon 703 is installed in the inside of the filter seat 702, the mounting cover 701 is installed at the top end of the filter seat 702, the through hole 704 is formed at the top end of the mounting cover 701, the outer side of the filter seat 702 is provided with external threads, the inner side of the mounting cover 701 is provided with internal threads, and the mounting cover 701 and the filter seat 702 are threadedly connected.

[0032] Specifically, after the waste gas heat is recovered, the waste gas is discharged through the smoke outlet pipe 6, at this time, the activated carbon 703 is used to filter the toxic substances in the waste gas, so that the toxic substances in the waste gas are filtered out, and pollution to the surrounding environment after the waste gas is discharged is prevented, thereby completing the filtering work.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pump valve casting waste heat recycling device, comprising a base (1) and a smoke outlet pipe (6); Characterized in that: The top end of the base (1) is provided with a recycling structure (2), one side of the recycling structure (2) is provided with a smoke inlet pipe (5), one side of the smoke inlet pipe (5) is provided with a connecting pipe (3), the connecting pipe (3) and the smoke inlet pipe (5) are provided with a sealing structure (4), and one side of the top end of the recycling structure (2) is provided with a smoke outlet pipe (6); The top end of the smoke outlet pipe (6) is provided with a filtering structure (7), the recycling structure (2) comprises a first recycling box (201), a second recycling box (202), a recycling pipe (203) and a heat exchanger (204), the first recycling box (201) is installed at the top end of the base (1), the recycling pipe (203) is installed in the bottom end of the first recycling box (201), the second recycling box (202) is installed on one side of the first recycling box (201), the heat exchanger (204) is installed in the second recycling box (202), and one end of the recycling pipe (203) is connected with one side of the second recycling box (202).

2. The pump valve casting waste heat recovery and recycling device according to claim 1, characterized in that: The materials of the recycling pipe (203) and the heat exchanger (204) are both copper.

3. The pump valve casting waste heat recovery and recycling device according to claim 1, characterized in that: The sealing structure (4) comprises a first flange plate (401), a sealing ring (402), a second flange plate (403) and a nut (404), the first flange plate (401) is fixed on one side of the smoke inlet pipe (5), the second flange plate (403) is fixed on one side of the connecting pipe (3), the sealing ring (402) is installed between the first flange plate (401) and the second flange plate (403), and the nut (404) is installed on one side of the second flange plate (403).

4. The pump valve casting waste heat recovery and recycling device according to claim 3, characterized in that: The nut (404) is provided with multiple groups, and the multiple groups of the nut (404) are annularly distributed on one side of the second flange plate (403).

5. The pump valve casting waste heat recovery and recycling device according to claim 3, characterized in that: The sealing ring (402) is connected with one side of the first flange plate (401) and the second flange plate (403), and the first flange plate (401) is in sealing connection with the sealing ring (402) and the second flange plate (403).

6. The pump valve casting waste heat recovery and recycling device according to claim 5, characterized in that: The filtering structure (7) comprises a mounting cover (701), a filter seat (702), activated carbon (703) and a through hole (704), the filter seat (702) is fixed at the top end of the smoke outlet pipe (6), the activated carbon (703) is installed in the filter seat (702), the mounting cover (701) is installed at the top end of the filter seat (702), and the through hole (704) is formed in the top end of the mounting cover (701).

7. The pump valve casting waste heat recovery and recycling device according to claim 6, characterized in that: The outer side of the filter seat (702) is provided with external threads, the inner side of the mounting cover (701) is provided with internal threads, and the mounting cover (701) is in threaded connection with the filter seat (702).

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