Efficient energy-saving continuous blowdown flash tank

Abstract

The utility model discloses an efficient energy-saving continuous blowdown flash tank which comprises a flash tank body, a filter pipe and a filter structure, a liquid inlet pipe is fixedly arranged at the liquid inlet end of the flash tank body, and a connecting flange is arranged at the inlet end of the liquid inlet pipe; the filter pipe is fixedly arranged between the liquid inlet pipe and the connecting flange; the filtering structure is arranged in an annular groove formed in the filtering pipe; the filtering structure comprises a fixing ring A and a filter screen; the fixing ring A is fixedly arranged on one side of the annular groove; and the filter screen is fixedly arranged in the fixing ring A. The sewage treatment device has the advantages that particles in sewage are intercepted when passing through the filter screen, and the sewage without the particles enters the expansion tank body.

Description

Technical Field

[0001] This utility model relates to the field of sewage expansion container technology, specifically a high-efficiency and energy-saving continuous sewage expansion container. Background Technology

[0002] A continuous blowdown expansion tank, also known as a continuous blowdown expander, is connected to the continuous blowdown port of a boiler and is used to reduce pressure and expand the capacity of the boiler's continuous blowdown.

[0003] Boiler wastewater is continuously and evenly fed into the blowdown expansion tank. The wastewater moves tangentially in the cylindrical baffle in the middle of the shell and is immediately vaporized into secondary steam. After steam-water separation by the upper louvered steam-water separator, it is introduced into the deaerator through the outlet at the top of the continuous discharge tank. The remaining wastewater is discharged through the water level regulating valve.

[0004] When boiler wastewater is discharged into the wastewater expansion tank, particles from the wastewater also enter the expansion tank. These particles remain in the expansion tank, and excessive particle residue can affect wastewater treatment.

[0005] In view of this, we propose a high-efficiency and energy-saving continuous sewage discharge expansion container. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency, energy-saving, continuous sewage discharge expansion container to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving continuous sewage discharge expansion tank, comprising an expansion tank body, an inlet pipe fixedly provided at the liquid inlet end of the expansion tank body, a connecting flange provided at the inlet end of the liquid inlet pipe, and further comprising a filter pipe and a filter structure;

[0008] The filter tube is fixed between the inlet pipe and the connecting flange;

[0009] The filter structure is disposed in an annular groove opened inside the filter tube;

[0010] The filtration structure includes a fixed ring A and a filter screen;

[0011] Fixed ring A is fixed to one side of the annular groove;

[0012] The filter screen is fixed inside the fixing ring A.

[0013] Preferably, the filter structure further includes a fixed ring B, a movable ring, and a stop plate;

[0014] The fixing ring B is fixed to the other side of the annular groove;

[0015] The movable ring is movably positioned within the space between the fixed ring A and the fixed ring B;

[0016] The movable ring is provided with a connecting rod, and the two ends of the connecting rod are fixedly connected to the fixed ring A and the fixed ring B respectively. A spring is sleeved on the connecting rod between the fixed ring B and the movable ring.

[0017] The abutment is fixed to the movable ring;

[0018] The abutment plate is in contact with the filter screen.

[0019] Preferably, the two ends of the abutment are staggered, one end of the abutment is fixedly connected to the movable ring, and the other end of the abutment is in contact with the filter screen.

[0020] Preferably, the slag discharge end of the filter tube is fixedly provided with a slag discharge channel, and a valve is provided on the slag discharge channel.

[0021] Preferably, the slag discharge channel inlet is located on the filter screen interception side.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This utility model, by setting up a filter pipe, a fixing ring A and a filter screen, has the advantage that particles in sewage are intercepted when passing through the filter screen, and the sewage after removing particles enters the expansion tank. This solves the problem that particles will remain in the sewage expansion tank, and excessive particle residue will affect sewage treatment.

[0024] 2. This utility model, by setting a fixed ring B, a movable ring, a stop plate, a connecting rod and a spring, has the advantage that the stop plate impacts the filter screen, vibrating the attached particles off the filter screen.

[0025] 3. This utility model has the advantage of cleaning up intercepted particulate matter by setting up a slag discharge channel and valve. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the connection structure of the filter tube of this utility model;

[0028] Figure 3 This is a cross-sectional view of the filter tube of this utility model;

[0029] Figure 4 This is a schematic diagram of the filter structure of this utility model;

[0030] Figure 5 For the present utility model Figure 4 Enlarged view of point A;

[0031] Figure 6 This is a schematic diagram of the distribution of the resist pieces of this utility model.

[0032] In the diagram: 100, expansion tank; 200, inlet pipe; 300, connecting flange; 400, filter pipe; 500, slag discharge channel; 600, valve; 700, filter structure;

[0033] 401. Annular groove;

[0034] 701. Fixed ring A; 702. Fixed ring B; 703. Movable ring; 704. Filter screen; 705. Support plate; 706. Connecting rod; 707. Spring. Detailed Implementation

[0035] 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.

[0036] Example 1, please refer to Figures 1 to 4 An embodiment of this utility model is provided: a high-efficiency and energy-saving continuous sewage discharge expansion container, including an expansion tank 100, an inlet pipe 200 fixedly provided at the liquid inlet end of the expansion tank 100, a connecting flange 300 provided at the inlet end of the liquid inlet pipe 200, and also including a filter pipe 400 and a filter structure 700.

[0037] The filter tube 400 is fixed between the liquid inlet pipe 200 and the connecting flange 300, and the connecting flange 300 is connected to the boiler wastewater pipe; the filter structure 700 is set in the annular groove 401 opened inside the filter tube 400.

[0038] The filter structure 700 includes a retaining ring A701 and a filter screen 704;

[0039] The fixing ring A701 is fixed to one side of the annular groove 401; the filter screen 704 is fixed inside the fixing ring A701, and the mesh size of the filter screen 704 shall be selected and used by the technical personnel of this profession according to the actual situation.

[0040] Wastewater discharged from the boiler enters the expansion tank 100 through the filter pipe 400 and the inlet pipe 200. When the wastewater passes through the filter screen 704, the particles in the wastewater are intercepted by the filter screen 704. The wastewater after the particles are removed enters the expansion tank 100 for treatment.

[0041] This utility model, by setting up a filter pipe 400, a fixing ring A701 and a filter screen 704, has the advantage that particles in the sewage are intercepted when passing through the filter screen 704, and the sewage after removing the particles enters the expansion tank 100. This solves the problem that particles will remain in the sewage expansion tank, and excessive particle residue will affect sewage treatment.

[0042] Example 2, please refer to Figure 2 , Figures 4 to 6 One embodiment of this utility model is a high-efficiency and energy-saving continuous sewage discharge expansion container, wherein the filter structure 700 further includes a fixed ring B702, a movable ring 703, and a retaining plate 705;

[0043] A fixed ring B702 is fixedly mounted on the other side of the annular groove 401; a movable ring 703 is movably mounted in the space between the fixed ring A701 and the fixed ring B702; a connecting rod 706 is mounted on the movable ring 703, and both ends of the connecting rod 706 are fixedly connected to the fixed ring A701 and the fixed ring B702 respectively. A spring 707 is sleeved on the connecting rod 706 between the fixed ring B702 and the movable ring 703, and both ends of the spring 707 are fixedly connected to the fixed ring B702 and the movable ring 703 respectively. The elastic coefficient of the spring 707 shall be selected and used by the technical personnel of this profession according to the actual situation; a stop plate 705 is fixedly mounted on the movable ring 703; the two ends of the stop plate 705 are staggered, one end of the stop plate 705 is fixedly connected to the movable ring 703, and the other end of the stop plate 705 contacts the filter screen 704.

[0044] When wastewater passes through the filter pipe 400, it impacts the abutment plate 705, applying kinetic energy to the abutment plate 705. This causes the movable ring 703 to move along the connecting rod 706 within the space between the fixed rings A701 and B702. The spring 707 is compressed. When the water flow weakens, the reverse elastic force generated by the compressed spring 707 pushes the movable ring 703 back, causing the abutment plate 705 to impact the filter screen 704. The filter screen 704 vibrates as a result, which can dislodge the attached particles on the filter screen 704, making the filter screen 704 less prone to clogging and more efficient.

[0045] This utility model, by setting a fixed ring B702, a movable ring 703, abutment 705, a connecting rod 706 and a spring 707, has the advantage that the abutment 705 impacts the filter screen 704, vibrating the attached particles off the filter screen 704.

[0046] Example 3, please refer to Figure 2 and Figure 3This utility model provides one embodiment: a high-efficiency and energy-saving continuous sewage discharge expansion container, wherein a slag discharge channel 500 is fixedly provided at the slag discharge end of the filter pipe 400, and a valve 600 is provided on the slag discharge channel 500; the inlet of the slag discharge channel 500 is located on the interception side of the filter screen 704. The intercepted particles eventually settle into the slag discharge channel 500. After the sewage is stopped, the valve 600 can be opened to clean the residual particles in the slag discharge channel 500.

[0047] This invention has the advantage of cleaning up intercepted particulate matter by setting up a slag discharge channel 500 and a valve 600.

[0048] Working Principle: Wastewater discharged from the boiler enters the expansion tank 100 through the filter pipe 400 and the inlet pipe 200. As the wastewater passes through the filter screen 704, particles in the wastewater are intercepted. The wastewater also impacts the abutment plate 705, applying kinetic energy to it. This causes the movable ring 703 to move along the connecting rod 706 within the space between the fixed rings A701 and B702, compressing the spring 707. When the water flow weakens, the reverse elastic force generated by the compressed spring 707 pushes the movable ring 703 back, causing the abutment plate 705 to impact the filter screen 704. This vibration of the filter screen 704 dislodges the particles attached to it. The wastewater, now free of particles, enters the expansion tank 100 for further treatment. The intercepted particles eventually settle into the slag discharge channel 500. After the wastewater supply stops, the valve 600 can be opened to clean any remaining particles from the slag discharge channel 500.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency and energy-saving continuous sewage discharge expansion tank, comprising an expansion tank (100), wherein an inlet pipe (200) is fixedly provided at the inlet end of the expansion tank (100), and a connecting flange (300) is provided at the inlet end of the inlet pipe (200), characterized in that, Also includes: A filter tube (400) is fixed between the inlet pipe (200) and the connecting flange (300); The filter structure (700) is disposed in the annular groove (401) opened inside the filter tube (400); The filter structure (700) includes: A fixing ring A (701) is fixed to one side of the annular groove (401); The filter screen (704) is fixed inside the fixing ring A (701).

2. The high-efficiency energy-saving continuous sewage discharge expansion tank according to claim 1, characterized in that: The filter structure (700) also includes: A fixing ring B (702) is fixed on the other side of the annular groove (401); The movable ring (703) is movably disposed within the space between the fixed ring A (701) and the fixed ring B (702); The movable ring (703) is provided with a connecting rod (706), and the two ends of the connecting rod (706) are fixedly connected to the fixed ring A (701) and the fixed ring B (702) respectively. A spring (707) is sleeved on the connecting rod (706) between the fixed ring B (702) and the movable ring (703). The abutment (705) is fixed on the movable ring (703); The abutment (705) is in contact with the filter (704).

3. The high-efficiency energy-saving continuous sewage discharge expansion tank according to claim 2, characterized in that: The two ends of the abutment (705) are offset. One end of the abutment (705) is fixedly connected to the movable ring (703), and the other end of the abutment (705) is in contact with the filter screen (704).

4. The high-efficiency energy-saving continuous sewage discharge expansion tank according to claim 1, characterized in that: The filter tube (400) is fixedly provided with a slag discharge channel (500) at the slag discharge end, and a valve (600) is provided on the slag discharge channel (500).

5. The high-efficiency energy-saving continuous sewage discharge expansion tank according to claim 4, characterized in that: The inlet of the slag discharge channel (500) is located on the interception side of the filter screen (704).

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