Water-saving type desulfurization pump

Abstract

The utility model discloses a water-saving type desulfurization pump which comprises a pump shell, one side of the pump shell is connected with a driving source motor, a water outlet is formed in the output end of the pump shell, a water inlet is formed in the input end of the pump shell, a water gate is installed at the end, away from the pump shell, of the water outlet, and an electric tracing band is installed in the water gate. The end, away from the water outlet, of the water gate is connected with a cut-off gate. The water gate is mounted at the water outlet of the desulfurization pump, the water gate is connected with the cut-off gate, the valve plate and the valve rod mounted in the cut-off gate are matched with each other, the water gate can be closed, the desulfurization pump inlet main gate is closed and the water gate is opened after the system is stopped, water stored in the desulfurization pump is flushed, and liquid medicine left in the desulfurization pump can flow out; the water gate is closed, the electric tracing band is installed in the water gate, and the interior of the water gate is heated through the electric tracing band, so that liquid medicine and water liquid are heated and evaporated, and liquid residues in the water gate and the desulfurization pump are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization pumps, in particular to a water-saving desulfurization pump. Background Technique

[0002] Desulfurization generally requires a strongly alkaline limestone solution. However, due to its strong alkalinity, strict requirements are put forward for the corrosion resistance and wear resistance of the pump. Among them, desulfurization pumps are required in the power plant power generation process. Since the secondary desulfurization system fails to meet the winter antifreeze requirements and operates passively, it not only wastes the liquid medicine and consumes electric energy, but also there is a risk of corrosion of the flue and chimney.

[0003] During the use of the existing desulfurization pump, after the pump is closed, the liquid medicine is likely to accumulate inside the pump body. Over time, the inside of the pump body will be corroded. In order to avoid this problem, flushing water is used to flush out the residual liquid medicine to reduce the liquid accumulation inside the desulfurization pump. However, there is still some liquid remaining inside the pump body, which is not conducive to saving water. In the cold winter, the liquid accumulation will cause the inside of the pump body to be frozen and damaged, shortening the service life of the desulfurization pump.

[0004] Therefore, those skilled in the art provide a water-saving desulfurization pump to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a water-saving desulfurization pump to solve the problems that the inside of the existing desulfurization pump is easily corroded and the service life of the pump body is relatively short as raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water-saving desulfurization pump includes: a pump casing, one side of the pump casing is connected with a driving source motor, the output end of the pump casing is provided with a water outlet, and the input end of the pump casing is provided with a water inlet. A water gate is installed at one end of the water outlet far away from the pump casing. An electric tracing band is installed inside the water gate. One end of the water gate far away from the water outlet is connected with a cut-off gate, and a connecting pipe for connection is arranged between the cut-off gate and the water gate. The other end of the cut-off gate is connected with a docking pipe. Sealing rings are installed between the docking pipe and the cut-off gate and between the connecting pipe and the cut-off gate. A valve plate is installed inside the cut-off gate. The upper end of the valve plate is connected with a valve rod, and a motor for driving is installed at the upper end of the valve rod.

[0008] As a further scheme in the utility model, the water outlet and the water inlet at both ends of the pump casing are communicated with each other, and a mounting seat is fixedly installed at the bottom of the pump casing.

[0009] As a further scheme in the utility model, the water outlet of the pump casing is communicated with the water gate.

[0010] As a further solution in the present utility model, a band is tied to the surface of the electric tracing tape. One end of the electric tracing tape is connected to a wire harness adapter, and a plug-in component is installed inside the end of the wire harness adapter far from the electric tracing tape. A cable bundle is plugged onto the surface of the plug-in component.

[0011] As a further solution in the present utility model, the surface of the electric tracing tape is mutually attached to the inner wall of the water gate, and an electrical connection is formed between the electric tracing tape and the cable bundle through the insertion port at one end of the wire harness adapter.

[0012] As a further solution in the present utility model, the valve stem and the valve plate are mutually connected. The motor forms a rotating structure by driving the valve stem and the valve plate, and the cut-off gate is mutually connected to the water gate through a connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] A water gate is installed at the water outlet of the desulfurization pump. The water gate is mutually connected to the cut-off gate. By utilizing the mutual cooperation between the valve plate and the valve stem installed in the cut-off gate, the water gate can be closed. When the system is shut down, the main gate at the inlet of the desulfurization pump is closed, and the water gate is opened to flush the water stored inside the desulfurization pump, allowing the liquid medicine remaining inside to flow out. For the remaining part, by closing the water gate and installing an electric tracing tape inside the water gate, the inside of the water gate is heated by the electric tracing tape, enabling the liquid medicine and the water liquid to be heated and evaporated, reducing the liquid residue inside the water gate and the desulfurization pump, preventing the liquid from remaining in the desulfurization pump and causing corrosion inside the desulfurization pump. At the same time, by evaporating the liquid inside the desulfurization pump, in a low-temperature environment in winter, the inside of the desulfurization pump is prevented from being frozen. Meanwhile, the setting of the water gate and the installation of the electric tracing tape in the water gate can reduce the waste of raw water, eliminating the need to use a large amount of raw water to carry away the liquid inside the desulfurization pump, thus saving water. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a water-saving desulfurization pump.

[0016] Figure 2 It is a schematic structural diagram of the water gate of a water-saving desulfurization pump.

[0017] Figure 3 It is a schematic structural diagram of the pump casing in a water-saving desulfurization pump.

[0018] Figure 4 It is a schematic structural diagram of the cut-off gate in a water-saving desulfurization pump.

[0019] Figure 5 It is a schematic structural diagram of the electric tracing tape in a water-saving desulfurization pump.

[0020] In the figure: 1, pump housing; 2, drive source motor; 3, mounting seat; 4, water outlet; 5, water gate; 501, electric heating tape; 502, band; 503, wire harness adapter; 504, connector; 505, cable harness; 6, cut-off gate; 7, connecting pipe; 8, docking pipe; 9, water inlet; 10, valve stem; 11, motor; 12, sealing ring; 13, valve plate. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 5 , the embodiments of the present invention provide a water-saving desulfurization pump, including: a pump housing 1, a drive source motor 2 is connected to one side of the pump housing 1, a water outlet 4 is arranged at the output end of the pump housing 1, and a water inlet 9 is arranged at the input end of the pump housing 1. A water gate 5 is installed at the end of the water outlet 4 away from the pump housing 1. An electric heating tape 501 is installed inside the water gate 5. A band 502 is tied to the surface of the electric heating tape 501. One end of the electric heating tape 501 is connected to a wire harness adapter 503. And a connector 504 is installed inside the end of the wire harness adapter 503 away from the electric heating tape 501. A cable harness 505 is inserted on the surface of the connector 504. The surface of the electric heating tape 501 is in mutual fit with the inner wall of the water gate 5, and the electric heating tape 501 is electrically connected to the cable harness 505 through the insertion port at one end of the wire harness adapter 503;

[0023] Specifically, by arranging an electric heating tape 501 inside the water gate 5, after the desulfurization gate is closed and the water gate 5 is also closed by the cut-off gate 6, the electric heating tape 501 is used to heat and evaporate the inside of the water gate 5 and the desulfurization pump, evaporate the liquid inside the water gate 5, reduce the liquid residue inside the desulfurization pump, and at the same time use the evaporation of the electric heating tape 501 to reduce the use of raw water to flush the inside of the desulfurization pump, avoiding the inside of the desulfurization pump from being frozen in the low-temperature environment in winter.

[0024] One end of the water gate 5 away from the water outlet 4 is connected with a cut-off gate 6, and a connecting pipe 7 for connection is arranged between the cut-off gate 6 and the water gate 5. The other end of the cut-off gate 6 is connected with a docking pipe 8. Sealing rings 12 are installed between the docking pipe 8 and the cut-off gate 6 and between the connecting pipe 7 and the cut-off gate 6. A valve plate 13 is installed inside the cut-off gate 6. The upper end of the valve plate 13 is connected with a valve rod 10. The upper end of the valve rod 10 is installed with a motor 11 for driving. The valve rod 10 and the valve plate 13 are connected to each other. The motor 11 drives the valve rod 10 and the valve plate 13 to form a rotating structure. The cut-off gate 6 is connected with the water gate 5 through the connecting pipe 7;

[0025] Specifically, through the setting of the connecting pipe 7, the cut-off gate 6 and the water gate 5 are connected. The motor 11 drives the valve rod 10 to drive the valve plate 13 to rotate. By using the rotation of the valve plate 13 inside the cut-off gate 6, the opening and closing control of the inside of the cut-off gate 6 is realized, and at the same time, the opening and closing of the water gate 5 are also realized.

[0026] The water outlet 4 and the water inlet 9 at both ends of the pump casing 1 are interconnected, and a mounting seat 3 is fixedly installed at the bottom of the pump casing 1. The water outlet 4 of the pump casing 1 is interconnected with the water gate 5;

[0027] Specifically, the water outlet 4 of the pump casing 1 is connected with the water gate 5. Through the setting of the water gate 5, it is convenient to control the opening and closing of the water outlet 4 of the pump casing 1. When the desulfurization pump system is closed through the water gate 5, it is convenient to flush the inside of the desulfurization pump and reduce the liquid residue inside the desulfurization pump.

[0028] The working principle of the present utility model is: when using the present utility model, a water gate 5 is installed at the desulfurization pump water outlet 4 through a connection pipeline, and an electric tracing tape 501 is added inside the water gate 5. After the system is shut down, the main gate at the desulfurization pump inlet is closed, the water gate 5 at the desulfurization pump water outlet 4 is opened, the motor 11 drives the valve rod 10 to drive the valve plate 13 to rotate, the water gate 5 at the desulfurization pump outlet is opened, the desulfurization pump body is opened, and the water in the pump body and the system is drained. Secondly, after the system operation is closed, before using the electric tracing tape 501 inside the water gate 5, the motor 11 drives the valve rod 10 to drive the valve plate 13 to rotate, so that the valve plate 13 rotates by a certain angle, so that there is a gap inside the cut-off gate 6 at the water gate 5. The electric tracing tape 501 is used to heat and evaporate the inside of the water gate 5 and the desulfurization pump, evaporate the liquid inside the water gate 5, reduce the liquid residue inside the desulfurization pump, and at the same time, use the evaporation of the electric tracing tape 501 to reduce the flushing of the inside of the desulfurization pump with raw water.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A water-saving desulfurization pump, characterized in that, Including: A pump housing (1), one side of the pump housing (1) is connected to a driving source motor (2), an outlet (4) is arranged at the output end of the pump housing (1), and an inlet (9) is arranged at the input end of the pump housing (1). A water gate (5) is installed at one end of the outlet (4) away from the pump housing (1). An electric tracing band (501) is installed inside the water gate (5). A cut-off gate (6) is connected to one end of the water gate (5) away from the outlet (4). A connecting pipe (7) for connection is arranged between the cut-off gate (6) and the water gate (5). The other end of the cut-off gate (6) is connected to a docking pipe (8). Sealing rings (12) are installed between the docking pipe (8) and the cut-off gate (6) and between the connecting pipe (7) and the cut-off gate (6). A valve plate (13) is installed inside the cut-off gate (6). A valve rod (10) is connected to the upper end of the valve plate (13). A motor (11) for driving is installed at the upper end of the valve rod (10).

2. The water-saving desulfurization pump according to claim 1, wherein The outlet (4) and the inlet (9) at both ends of the pump housing (1) are interconnected, and a mounting seat (3) is fixedly installed at the bottom of the pump housing (1).

3. The water-saving desulfurization pump according to claim 1, characterized in that, The outlet (4) of the pump housing (1) is interconnected with the water gate (5).

4. A water-saving desulfurization pump according to claim 1, characterized in that, A band (502) is bundled on the surface of the electric tracing band (501). One end of the electric tracing band (501) is connected to a wire harness connecting pipe (503). A plug-in part (504) is installed inside the end of the wire harness connecting pipe (503) away from the electric tracing band (501). A cable bundle (505) is plugged on the surface of the plug-in part (504).

5. The water-saving desulfurization pump according to claim 1, characterized in that, The surface of the electric tracing band (501) is in mutual fit with the inner wall of the water gate (5), and an electrical connection is formed between the electric tracing band (501) and the cable bundle (505) through the insertion port at one end of the wire harness connecting pipe (503).

6. A water-saving desulfurization pump according to claim 1, characterized in that, The valve rod (10) is interconnected with the valve plate (13). The motor (11) forms a rotating structure by driving the valve rod (10) and the valve plate (13). The cut-off gate (6) is interconnected with the water gate (5) through the connecting pipe (7).

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