MVR (Mechanical Vapor Recompression) evaporation and concentration equipment for treating low-salt wastewater

Abstract

The utility model discloses MVR (Mechanical Vapor Recompression) evaporation and concentration equipment for low-salt wastewater treatment, which comprises a gas-liquid separator body and an inlet pipe, the inlet pipe is fixed outside a shell of the gas-liquid separator body in an intercommunication manner, the MVR evaporation and concentration equipment further comprises a liquid intercepting mechanism, the liquid intercepting mechanism comprises a U-shaped square pipe, a sealing plate, a threaded pipe, a side connecting plate, an embedded pipe, a surface mounting plate, a conical pile, a spiral blade and a wrapping head, opposite penetrating openings are symmetrically formed in the positions, below the inlet pipe, outside the gas-liquid separator body, a straight pipe body of a U-shaped square pipe penetrates out of cavity openings of the opposite penetrating openings, a liquid intercepting mechanism is arranged at the position of the gas-liquid separator body of the MVR evaporation concentration equipment, and the liquid intercepting mechanism can form a structure for intercepting liquid molecules in the gas-liquid separator body. The interception, collection and concentration efficiency of low-salt wastewater liquid molecules in the gas-liquid separator body is improved, and the evaporation and concentration efficiency of the low-salt wastewater in the gas-liquid separator body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporative concentration equipment technical field, especially in low salt wastewater treatment with MVR evaporative concentration equipment. BACKGROUND

[0002] Low salt wastewater refers to the wastewater whose salt concentration is lower than seawater, and it is usually the wastewater discharged by industry, and the low salt wastewater is usually treated by MVR concentration evaporator, and the MVR concentration evaporator is a high-efficiency energy-saving evaporation equipment, and its working principle is to improve the energy of secondary steam by using a steam compressor, recover and utilize the latent heat of secondary steam, and the steam compressor is the key of the MVR system, and the temperature and pressure of secondary steam are improved by compression, so that steam is continuously provided for the system, and in addition to the steam compressor, the MVR evaporator also includes a preheater, a vapor-liquid separator, a steam heat exchanger and a control center and other components, which cooperate to realize the evaporation concentration process.

[0003] At present, when the low salt wastewater is treated by using the MVR evaporation concentration equipment, the low salt wastewater is evaporated and concentrated at the vapor-liquid separator of the MVR evaporator, but the vapor-liquid separator usually relies on the silk screen to separate gas molecules and liquid molecules, which makes the concentration efficiency of liquid molecules in the vapor-liquid separator low, and further affects the treatment efficiency of the low salt wastewater, therefore, the utility model provides a kind of MVR evaporative concentration equipment for low salt wastewater treatment. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of MVR evaporative concentration equipment for low salt wastewater treatment, which is provided with a liquid interception mechanism at the vapor-liquid separator body of the MVR evaporative concentration equipment, the liquid interception mechanism can form a structure for intercepting liquid molecules in the vapor-liquid separator body, increase the interception and concentration efficiency of liquid molecules in the vapor-liquid separator body, improve the evaporation concentration efficiency of low salt wastewater in the vapor-liquid separator body, and effectively solve the problems in the background art.

[0005] To achieve the above purpose, the utility model adopts the technical scheme that:

[0006] The utility model provides a kind of MVR evaporation concentration equipment for low-salt wastewater treatment, including gas-liquid separator body and into pipe, the shell of gas-liquid separator body is mutually communicated and fixed with into pipe, further including liquid interception mechanism, the liquid interception mechanism includes U-shaped square pipe, sealing plate, threaded pipe, side connecting plate, embedded pipe, surface mounting plate, conical pile, helical blade and package head, the gas-liquid separator body outside below into pipe is symmetrically provided with and passes through mouth, and the cavity of and passes through mouth is inserted with the straight pipe body of U-shaped square pipe, the elbow pipe body of U-shaped square pipe is welded with the inner shell wall of gas-liquid separator body with side connecting plate, and the straight pipe mouth of U-shaped square pipe is locked with sealing plate outside by bolt, the surface of the plate body of sealing plate is mutually communicated and welded with threaded pipe, the embedded hole for clamping embedded pipe is formed in the upper pipe wall of U-shaped square pipe, and the pipe body of embedded pipe is welded in the pile bottom of conical pile, the pile body of conical pile is welded with surface mounting plate outside, and surface mounting plate is locked in the pipe body surface of U-shaped square pipe by bolt, the conical cavity that is mutually communicated with embedded pipe is formed in the pile body of conical pile, the helical blade is welded with the pile body outside of conical pile away from surface mounting plate and spirally reduces, and the package head is fixed in the pile body top of conical pile.

[0007] Further, the cavity of and passes through mouth is welded with the straight pipe body of U-shaped square pipe, and the straight pipe body of U-shaped square pipe is welded with the long plate body of side connecting plate, and the curved edge plate body of side connecting plate is welded with the inner shell wall of gas-liquid separator body.

[0008] By adopting the above technical scheme, the straight pipe body of U-shaped square pipe is inserted and welded at and passes through mouth, and U-shaped square pipe is connected by welding the inner shell wall of gas-liquid separator body with side connecting plate.

[0009] Further, the surface of surface mounting plate and U-shaped square pipe is provided with mounting hole, and the mounting hole of surface mounting plate and U-shaped square pipe is screwed with bolt.

[0010] By adopting the above technical scheme, bolt can be screwed between the mounting hole of surface mounting plate and U-shaped square pipe for locking.

[0011] Further, the pipe body between sealing plate and U-shaped square pipe is provided with surface mounting hole, and bolt is screwed between the surface mounting hole of sealing plate and U-shaped square pipe.

[0012] By adopting the above technical scheme, bolt can be screwed between the surface mounting hole of sealing plate and U-shaped square pipe for locking of sealing plate.

[0013] Further, the threaded pipe is inserted into the plate body of sealing plate, and the threaded pipe is welded with the insertion of sealing plate.

[0014] By adopting the above technical scheme, threaded pipe can be inserted and welded in the plate body of sealing plate.

[0015] Further, the helical blade is welded spirally downward from the top of conical pile, and the blade of helical blade spirals downward outside the pile body of conical pile.

[0016] By adopting the above technical solution, the threaded blades on the outside of the conical pile can be coiled to reduce welding, so that when the low-salt wastewater is evaporated and concentrated at the gas-liquid separator body, the liquid molecules can contact the threaded blades, condense into water, and slide down.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention provides a liquid interception mechanism at the gas-liquid separator body of the MVR evaporation and concentration equipment. The liquid interception mechanism can form a structure to intercept liquid molecules within the gas-liquid separator body, thereby increasing the interception, collection, and concentration efficiency of low-salt wastewater liquid molecules within the gas-liquid separator body and improving the evaporation and concentration efficiency of low-salt wastewater within the gas-liquid separator body.

[0019] Furthermore, the liquid interception mechanism can introduce cooling water to remove the heat from the U-shaped square tube, while the heat from the conical pile can be removed from the U-shaped square tube through the embedded pipe. This allows the conical pile and spiral blades to effectively intercept and concentrate the liquid molecules of the low-salt wastewater treatment steam within the gas-liquid separator body for evaporation and collection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the gas-liquid separator body and liquid interception mechanism of an MVR evaporation and concentration device for low-salt wastewater treatment according to this utility model.

[0021] Figure 2 This is a schematic diagram showing the disassembled gas-liquid separator body and liquid interception mechanism of an MVR evaporation and concentration device for low-salt wastewater treatment according to this utility model.

[0022] Figure 3 This is an exploded view of the liquid interception mechanism of an MVR evaporation and concentration device for low-salt wastewater treatment according to this utility model.

[0023] Figure 4 This is an exploded view of the conical pile of an MVR evaporation and concentration device for treating low-salt wastewater according to this utility model.

[0024] In the diagram: 1. Gas-liquid separator body; 2. Inlet pipe; 3. Through-hole; 4. Liquid interception mechanism; 5. U-shaped square tube; 6. Sealing plate; 7. Threaded pipe; 8. Side connecting plate; 9. Embedded hole; 10. Embedded tube; 11. Surface mounting plate; 12. Conical pile; 13. Spiral blade; 14. Head; 15. Conical cavity. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-4As shown, a kind of MVR evaporation concentration equipment for low-salt wastewater treatment, including gas-liquid separator body 1 and into pipe 2, the shell of the gas-liquid separator body 1 is fixed with into pipe 2, further including liquid interception mechanism 4, the liquid interception mechanism 4 includes U-shaped square tube 5, sealing plate 6, threaded pipe 7, side connecting plate 8, embedded pipe 10, surface mounting plate 11, conical pile 12, helical blade 13 and package head 14, the gas-liquid separator body 1 outside below into pipe 2 is symmetrically provided with the through hole 3, and the cavity of the through hole 3 is inserted with the straight pipe body of U-shaped square tube 5, the elbow body of U-shaped square tube 5 is welded with the inner shell wall of gas-liquid separator body 1 with side connecting plate 8, and the straight pipe mouth of U-shaped square tube 5 is locked with sealing plate 6 by bolt, the plate body surface of sealing plate 6 is welded with threaded pipe 7, the upper pipe wall of U-shaped square tube 5 is provided with embedded hole 9 for clamping embedded pipe 10, and the pipe body of embedded pipe 10 is welded in the pile bottom of conical pile 12, the pile body of conical pile 12 is welded with surface mounting plate 11 outside, and surface mounting plate 11 is locked on the pipe body surface of U-shaped square tube 5 by bolt, the pile body of conical pile 12 is provided with conical cavity 15, which is communicated with embedded pipe 10, the pile body of conical pile 12 is welded with helical blade 13 away from surface mounting plate 11, and the pile body top of conical pile 12 is fixed with package head 14.

[0027] Wherein, the cavity of the through hole 3 is welded with the straight pipe body of U-shaped square tube 5, and the straight pipe body of U-shaped square tube 5 is welded with the long plate body of side connecting plate 8, and the curved edge plate body of side connecting plate 8 is welded with the inner shell wall of gas-liquid separator body 1;

[0028] By adopting the above technical scheme, the straight pipe body of U-shaped square tube 5 is inserted and welded at the through hole 3, and U-shaped square tube 5 is connected by welding the inner shell wall of gas-liquid separator body 1 with side connecting plate 8.

[0029] Wherein, the surface of the surface mounting plate 11 and U-shaped square tube 5 is provided with mounting hole, and the mounting hole of surface mounting plate 11 and U-shaped square tube 5 is screwed with bolt;

[0030] By adopting the above technical scheme, the mounting hole of surface mounting plate 11 and U-shaped square tube 5 can be screwed with bolt for locking.

[0031] Wherein, the pipe body between the sealing plate 6 and U-shaped square tube 5 is provided with surface mounting hole, and the surface mounting hole between the sealing plate 6 and U-shaped square tube 5 is screwed with bolt;

[0032] By adopting the above technical scheme, the surface mounting hole between the sealing plate 6 and U-shaped square tube 5 can be screwed with bolt for locking the sealing plate 6.

[0033] Wherein, the plate body of sealing plate 6 is inserted with threaded pipe 7, and the insertion of threaded pipe 7 and sealing plate 6 is welded and connected;

[0034] By adopting the technical scheme, the plate body of the sealing plate 6 can be inserted and welded with the threaded pipe 7.

[0035] The spiral blade 13 is coiled and welded downward from the top of the tapered pile 12, and the blade of the spiral blade 13 spirals downward outside the pile body of the tapered pile 12.

[0036] By adopting the technical scheme, the threaded blade 13 outside the tapered pile 12 can be coiled and welded downward, so that when the low-salt wastewater is evaporated and concentrated in the gas-liquid separator body 1, the liquid molecules can contact the threaded blade 13 to condense into water and slide downward.

[0037] It should be noted that the utility model is a kind of MVR evaporation concentration equipment for low-salt wastewater treatment, the liquid interception mechanism 4 is arranged at the gas-liquid separator body 1 of MVR evaporation concentration equipment, after the U-shaped square tube 5 is inserted and welded in the opposite hole 3 of the gas-liquid separator body 1, the U-shaped square tube 5 is welded on the inner shell wall of the gas-liquid separator body 1 by side connecting plate 8 To obtain support, the pipe opening of the U-shaped square tube 5 is locked by bolt sealing plate 6, and the two plate bodies of the sealing plate 6 can be connected with external cooling water source pipeline and external drain pipeline by threaded pipe 7, after the embedded pipe 10 is inserted in the embedded hole 9 of the U-shaped square tube 5, the surface mounting plate 11 of the tapered pile 12 is locked on the surface of the U-shaped square tube 5 by bolt, then the entering pipe 2 of the gas-liquid separator body 1 enters low-salt wastewater treatment steam, cooling water can be discharged outward after passing through the U-shaped square tube 5, so as to take away the heat of the U-shaped square tube 5, and the heat of the tapered pile 12 can be taken away from the embedded pipe 10 into the U-shaped square tube 5, so that the tapered pile 12 and the spiral blade 13 can intercept the liquid molecules of low-salt wastewater treatment steam in the gas-liquid separator body 1 to evaporate and concentrate collection, and the lighter gaseous molecules can be discharged from above the gas-liquid separator body 1.

[0038] It should be noted that the utility model is a kind of MVR evaporation concentration equipment for low-salt wastewater treatment, the components in the utility model are components known to those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through technical manual or through conventional experimental method.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An MVR evaporation and concentration device for treating low-salt wastewater, comprising a gas-liquid separator body (1) and an inlet pipe (2), wherein the inlet pipe (2) is fixedly connected to the outer shell of the gas-liquid separator body (1), characterized in that: It also includes a liquid interception mechanism (4), which includes a U-shaped square tube (5), a sealing plate (6), a threaded tube (7), a side connecting plate (8), an embedded tube (10), a surface plate (11), a conical pile (12), a spiral blade (13), and a cap (14). The gas-liquid separator body (1) below the inlet pipe (2) has symmetrical through-holes (3) on its outside, and a straight tube of the U-shaped square tube (5) extends out of the cavity of the through-hole (3). The bent tube of the U-shaped square tube (5) is welded to the inner shell wall of the gas-liquid separator body (1) by the side connecting plate (8), and a sealing plate (6) is bolted to the outside of the straight tube of the U-shaped square tube (5). The plate body surface is welded with threaded pipes (7), the upper pipe wall of the U-shaped square pipe (5) is provided with a hole (9) for mounting the embedded pipe (10), and the pipe body of the embedded pipe (10) is welded to the bottom of the cone pile (12). The outer surface of the cone pile (12) is welded with a surface plate (11), and the surface plate (11) is locked to the surface of the U-shaped square pipe (5) by bolts. The cone pile (12) has a cone cavity (15) that communicates with the embedded pipe (10) in the pile body. The outer surface of the cone pile (12) away from the surface plate (11) is wrapped with a spiral blade (13), and the top of the cone pile (12) is fixed with a cap (14).

2. The MVR evaporation and concentration equipment for low-salt wastewater treatment according to claim 1, characterized in that: The cavity of the through-hole (3) is welded to the straight tube of the U-shaped square tube (5), and the straight tube of the U-shaped square tube (5) is welded to the long plate of the side connecting plate (8), and the bent plate of the side connecting plate (8) is welded to the inner shell wall of the gas-liquid separator body (1).

3. The MVR evaporation and concentration equipment for low-salt wastewater treatment according to claim 1, characterized in that: Mounting holes are provided on the surfaces of the mounting plate (11) and the U-shaped square tube (5), and bolts are screwed into the mounting holes of the mounting plate (11) and the U-shaped square tube (5).

4. The MVR evaporation and concentration equipment for low-salt wastewater treatment according to claim 1, characterized in that: A mounting hole is provided between the sealing plate (6) and the U-shaped square tube (5), and a bolt is screwed between the mounting hole of the sealing plate (6) and the U-shaped square tube (5).

5. The MVR evaporation and concentration equipment for low-salt wastewater treatment according to claim 1, characterized in that: A threaded tube (7) is inserted into the plate body of the sealing plate (6), and the threaded tube (7) is welded to the insertion point of the sealing plate (6).

6. The MVR evaporation and concentration equipment for low-salinity wastewater treatment according to claim 1, characterized in that: The spiral blade (13) is welded downward from the top of the conical pile (12), and the blade of the spiral blade (13) spirals and descends outside the pile body of the conical pile (12).

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