Flash steam recycling device and flash evaporator

Abstract

The flash steam recycling device comprises a recycling mechanism, the recycling mechanism comprises a recycling tank, a discharging pipe, a first partition plate, a first electric drainage valve, a second partition plate, a one-way valve and a second electric drainage valve, and the top of the recycling tank is connected with the discharging pipe; a first partition plate and a first electric drainage valve are installed in the recycling tank, and the bottom of one side of the recycling tank is connected with the first electric drainage valve. According to the flash steam recycling device and the flash evaporator, when water scale is attached to the surfaces of the first electric heating plate and the second electric heating plate to influence the heating efficiency, a worker can detach the sealing cover from the top of the flash evaporation shell by detaching the sealing piece, and then the sealing cover is pulled to take out the heating assembly connected to the lower portion of the sealing cover from the interior of the flash evaporation shell; and in addition, the disassembly process is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flash evaporation, in particular to a flash steam recycling device and a flash evaporator. Background Art

[0002] Flash evaporation is the phenomenon that after a high-pressure saturated liquid enters a relatively low-pressure container, due to the sudden decrease in pressure, these saturated liquids become saturated steam and saturated liquid under a part of the container pressure. The flash evaporator is a device for heat recovery and utilization of high-temperature condensed water or materials. After searching, it is found that the flash evaporator in the prior art is typically such as the flash evaporator with high flash evaporation efficiency as disclosed in Publication No. CN102580334A, which includes a shell, a plurality of flash chambers are horizontally arranged in the shell, one end of the shell is provided with a high-temperature water inlet, and the other end is provided with a low-temperature water outlet and a steam outlet. Except for the flash chamber connected to the end, the rest of the flash chambers are provided with heat exchange plates, and the heat exchange plates are provided with a solution inlet and a solution outlet. The solution inlets and solution outlets between the heat exchange plates in adjacent flash chambers are connected in sequence through upper pipes, and the bottoms of adjacent flash chambers are connected through lower pipes. The advantages of the present invention are: after the multi-stage flash chambers using heat exchange plates are provided, the flash evaporation effect is improved as a whole.

[0003] In summary, the heating components inside the existing flash evaporators are mostly closed in structure, which makes it inconvenient to clean the scale inside. In view of the above problems, it is necessary to improve the existing equipment. Utility Model Content

[0004] The utility model aims to provide a flash steam recycling device and a flash evaporator to solve the problem that the heating components inside the existing flash evaporators mentioned in the background technology are mostly closed in structure, making it inconvenient to clean the scale inside.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flash steam recycling device and a flash evaporator, including a recovery mechanism, the recovery mechanism includes a recovery tank, an external discharge pipe, a first partition plate, a first electric drain valve, a second partition plate, a one-way valve and a second electric drain valve, and the top of the recovery tank is connected to the external discharge pipe, the first partition plate and the first electric drain valve are installed inside the recovery tank, and the first electric drain valve is connected to the bottom of one side of the recovery tank.

[0006] Preferably, the first partition plate is arranged above the second partition plate, and the first partition plate arranged on the second partition plate are both in a disc shape.

[0007] Preferably, a one-way valve and a second electric drain valve are respectively provided on the first partition plate and the second partition plate, and two groups of the one-way valve and the second electric drain valve are provided.

[0008] Preferably, the pressure reducing valve is connected to the flash shell and the recovery tank respectively through a delivery pipeline, and a sealing cover is provided on the top of the flash shell, and the heating component is arranged inside the flash shell, and the heating component is connected to the sealing cover.

[0009] Preferably, a water inlet pipe is connected to the top side wall of the flash shell, and the flash shell is connected to the sealing cover through a sealing member.

[0010] Preferably, the heating assembly comprises a column, a first electric heating plate, a second electric heating plate and a through hole, and the first electric heating plate and the second electric heating plate are connected to the column.

[0011] Preferably, the first electric heating plate and the second electric heating plate are alternately arranged on the column, and both the first electric heating plate and the second electric heating plate are in the shape of a disc.

[0012] Preferably, through holes are symmetrically provided on the first electric heating plate, and the diameter of the first electric heating plate is greater than the diameter of the second electric heating plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the flash steam recycling device and the flash evaporator,

[0014] (1) The utility model can effectively solve the problem that the heating components in the existing flash evaporator are mostly sealed in structure, which makes it inconvenient to clean the scale inside. When the scale adheres to the surface of the first electric heating plate and the second electric heating plate and affects the heating efficiency, the staff can remove the sealing cover from the top of the flash evaporator shell by removing the sealing cover, and then pull the sealing cover to remove the heating component connected to the bottom from the inside of the flash evaporator shell, and then clean it, and the disassembly process is relatively convenient;

[0015] (2) The utility model can effectively solve the problem that most of the existing steam is directly discharged to the outside, which is relatively wasteful, and the steam is prone to leakage during the treatment of condensed water through the coordinated use of the one-way valve and the second electric drain valve. The recovery tank can recover the flash steam and condensed water generated by flash evaporation. At the same time, the recovered flash steam can be transported to a designated position through the external discharge pipe. The one-way valve prevents the flash steam from flowing back. Similarly, when the condensed water storage in the recovery tank is saturated, the staff can close the second electric drain valve and use the space above the second partition plate to temporarily store it while preventing the flash steam from leaking. Then, the first electric drain valve is opened to discharge the condensed water below the second partition plate as a whole, and the entire discharge work does not require the flash evaporation work to be suspended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the cross-sectional structure of the recycling mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the flash evaporation shell of the utility model.

[0019] In the figure: 1. recovery mechanism; 101. recovery tank; 102. external discharge pipe; 103. first partition plate; 104. first electric drain valve; 105. second partition plate; 106. one-way valve; 107. second electric drain valve; 2. delivery pipeline; 3. pressure reducing valve; 4. flash shell; 5. sealing cover; 6. sealing member; 7. heating assembly; 701. column; 702. first electric heating plate; 703. second electric heating plate; 704. through hole; 8. water inlet pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a flash steam recycling device and a flash evaporator.

[0022] Embodiment 1

[0023] A flash steam recycling device includes a recovery mechanism 1, which includes a recovery tank 101, an external discharge pipe 102, a first partition plate 103, a first electric drain valve 104, a second partition plate 105, a one-way valve 106 and a second electric drain valve 107, and the top of the recovery tank 101 is connected to the external discharge pipe 102, the first partition plate 103 and the first electric drain valve 104 are installed inside the recovery tank 101, and the first electric drain valve 104 is connected to the bottom of one side of the recovery tank 101.

[0024] In a further embodiment, the first partition plate 103 is disposed above the second partition plate 105 , and the first partition plate 103 disposed on the second partition plate 105 is in a disc shape.

[0025] In a further embodiment, the first partition plate 103 and the second partition plate 105 are respectively provided with a one-way valve 106 and a second electric drain valve 107 , and two groups of the one-way valve 106 and the second electric drain valve 107 are provided.

[0026] Specifically, first connect the external drain pipe 102 to the external pipeline, and the flash steam entering the recovery tank 101 will be discharged through the external drain pipe 102, and the condensed water generated during the flash evaporation process will be discharged to the bottom of the second partition plate 105 through the second electric drain valve 107 and stored in the inner bottom of the recovery tank 101. When the condensed water storage in the recovery tank 101 is saturated, the staff can close the second electric drain valve 107 and use the space above the second partition plate 105 to temporarily store it while preventing the flash steam from leaking. Then open the first electric drain valve 104 to discharge the condensed water under the second partition plate 105 as a whole. After emptying, close the first electric drain valve 104 and open the second electric drain valve 107 to drain the condensed water to the bottom of the recovery tank 101 for storage.

[0027] Embodiment 2

[0028] This embodiment is a further description of the above embodiment. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0029] A flash evaporator includes a pressure reducing valve 3 and a heating component 7. The pressure reducing valve 3 is respectively connected to a flash evaporation shell 4 and a recovery tank 101 through a delivery pipeline 2, and a sealing cover 5 is provided on the top of the flash evaporation shell 4. The heating component 7 is arranged inside the flash evaporation shell 4, and the heating component 7 is connected to the sealing cover 5.

[0030] In a further embodiment, a water inlet pipe 8 is connected to the top side wall of the flash shell 4 , and the flash shell 4 is connected to the sealing cover 5 via a sealing member 6 .

[0031] In a further embodiment, the heating assembly 7 includes a column 701 , a first electric heating plate 702 , a second electric heating plate 703 and a through hole 704 , and the column 701 is connected to the first electric heating plate 702 and the second electric heating plate 703 .

[0032] In a further embodiment, the first electric heating plate 702 and the second electric heating plate 703 are alternately arranged on the column 701, and the first electric heating plate 702 and the second electric heating plate 703 are both in the shape of a disc.

[0033] In a further embodiment, through holes 704 are symmetrically provided on the first electric heating plate 702 , and the diameter of the first electric heating plate 702 is greater than the diameter of the second electric heating plate 703 .

[0034] Specifically, high-temperature waste water is discharged to the interior of the flash evaporation shell 4 through the water inlet pipe 8 and contacts the first electric heating plate 702. The first electric heating plate 702 will heat it. After heating, the waste water flows downward through the through hole 704 to the second electric heating plate 703. The second electric heating plate 703 continues to heat it. The heated waste water flows downward through its outer edge to the first electric heating plate 702 to continue heating. This cycle ensures the uniformity of heating. At the same time, since the flash evaporation shell 4 is in a closed state, the air pressure increases synchronously during the heating process. When the high-pressure and high-temperature water is discharged to the recovery tank 101 through the pressure reducing valve 3, the high-pressure and high-temperature water will generate flash steam and condensed water and be stored in the recovery tank 101 due to the decrease in air pressure and temperature.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flash steam recycling device, comprising a recovery mechanism (1), characterized in that: The recovery mechanism (1) comprises a recovery tank (101), an external drainage pipe (102), a first partition plate (103), a first electric drainage valve (104), a second partition plate (105), a one-way valve (106) and a second electric drainage valve (107), wherein the top of the recovery tank (101) is connected to the external drainage pipe (102), the first partition plate (103) and the first electric drainage valve (104) are installed inside the recovery tank (101), and the first electric drainage valve (104) is connected to the bottom of one side of the recovery tank (101).

2. A flash steam recycling device according to claim 1, characterized in that: The first partition plate (103) is arranged above the second partition plate (105), and the first partition plate (103) and the second partition plate (105) are both in a disc shape.

3. A flash steam recycling device according to claim 1, characterized in that: The first partition plate (103) and the second partition plate (105) are respectively provided with a one-way valve (106) and a second electric drain valve (107), and two groups of the one-way valve (106) and the second electric drain valve (107) are provided.

4. A flash evaporator, the flash evaporator being equipped with the flash steam recycling device according to any one of claims 1 to 3, comprising a pressure reducing valve (3) and a heating assembly (7), characterized in that: The pressure reducing valve (3) is respectively connected to the flash shell (4) and the recovery tank (101) through a delivery pipeline (2), and a sealing cover (5) is provided on the top of the flash shell (4). The heating component (7) is arranged inside the flash shell (4), and the heating component (7) is connected to the sealing cover (5).

5. A flash evaporator according to claim 4, characterized in that: A water inlet pipe (8) is connected to the top side wall of the flash shell (4), and the flash shell (4) is connected to the sealing cover (5) via a sealing member (6).

6. A flash evaporator according to claim 4, characterized in that: The heating component (7) comprises a column (701), a first electric heating plate (702), a second electric heating plate (703) and a through hole (704), and the column (701) is connected to the first electric heating plate (702) and the second electric heating plate (703).

7. A flash evaporator according to claim 6, characterized in that: The first electric heating plate (702) and the second electric heating plate (703) are arranged alternately on the column (701), and both the first electric heating plate (702) and the second electric heating plate (703) are in the shape of a disc.

8. A flash evaporator according to claim 6, characterized in that: The first electric heating plate (702) is symmetrically provided with through holes (704), and the diameter of the first electric heating plate (702) is greater than the diameter of the second electric heating plate (703).

Images