Evaporation and condensation type high-concentration brine concentration device

Abstract

The utility model discloses an evaporation and condensation type high-concentration brine concentration device, which belongs to the technical field of water treatment and comprises an evaporation barrel, a heating element mounted on the evaporation barrel, a condensation component arranged at the top of the evaporation barrel and a spraying component arranged above the condensation component. The condensation assembly comprises a bottom plate connected with the top of the evaporation barrel and a condensation structure arranged on the bottom plate, the condensation structure comprises an inner pipe communicated with the evaporation barrel and an outer pipe arranged outside the inner pipe in a sleeving mode, a condensation channel is formed between the inner pipe and the outer pipe, the spraying assembly comprises a water distribution pipe and a spray head installed on the water distribution pipe, and the spray head corresponds to the condensation structure. An annular baffle is arranged on the bottom plate, an inner cavity of the baffle forms a water collecting tank, and a communicating water pipe is connected between the water collecting tank and the evaporation barrel. According to the evaporation and condensation type high-concentration brine concentration device disclosed by the utility model, the brine is sprayed on the outer pipe by the spraying assembly, so that the temperature of the outer pipe is reduced, the generation of condensed water is facilitated, the condensation effect is improved, and the brine concentration progress is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an evaporation-condensation type high-concentration salt water concentration device. Background Art

[0002] High-concentration brine is a waste generated in various industrial production and experimental processes. Improper treatment will not only pollute the environment, but also pose a threat to human health. Therefore, it is very important to treat high-concentration brine reasonably and efficiently.

[0003] At present, the main methods for concentrating high-concentration brine are ion exchange desalination, reverse osmosis desalination and evaporation crystallization. Ion exchange desalination is a chemical treatment method. The principle of ion exchange is that the ions on the resin have a high affinity. They will react with the salt molecules in the water, so that the salt is adsorbed on the resin. This method has high requirements for resin quality and needs to be replaced regularly, which is very inconvenient to operate. Reverse osmosis desalination is a physical treatment method. The principle of reverse osmosis is that the semipermeable membrane used has tiny pores. Under high pressure, the pores can only allow water molecules to pass through, but not salt molecules. This method has high requirements for the quality of the incoming water. If it is mixed with larger particulate impurities, it will damage the semipermeable membrane, resulting in a reduction in the service life of the semipermeable membrane. The evaporation crystallization method is a desalination method that achieves the effect of separating salt and water by evaporating high-concentration brine through heating. This method is suitable for brine with a large processing volume and a high salt content, and the equipment is relatively simple, easy to operate, and easy to maintain, which can meet industrial and laboratory needs. Obviously, the evaporation crystallization method has obvious advantages over the ion exchange desalination method and the reverse osmosis desalination method. The existing evaporation crystallization equipment for concentrating high-concentration brine generally includes an evaporation tank and a condenser connected to the top of the evaporation tank. When in use, after the concentrated brine in the evaporation tank boils, the steam rises into the condenser to complete condensation. In specific implementation, the temperature of the condenser is at a relatively high temperature, which will affect the condensation effect of water vapor, resulting in reduced condensation efficiency, and the progress of brine concentration needs to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in the prior art, the brine concentration device used in the evaporation crystallization method has low condensation efficiency and poor concentration effect. Based on this, the utility model provides an evaporation-condensation type high-concentration brine concentration device with high condensation efficiency and good concentration effect.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an evaporation-condensation type high-concentration salt water concentration device, comprising an evaporating cylinder, a heating element installed on the evaporating cylinder, a condensing assembly arranged on the top of the evaporating cylinder and a spray assembly arranged above the condensing assembly, the condensing assembly comprising a bottom plate connected to the top of the evaporating cylinder and a condensing structure arranged on the bottom plate, the condensing structure comprising an inner tube connected to the evaporating cylinder and an outer tube sleeved on the outside of the inner tube, a condensation channel is formed between the inner tube and the outer tube, the spraying assembly comprises a water distribution pipe and a nozzle installed on the water distribution pipe, the nozzle corresponds to the condensing structure, an annular baffle is provided on the bottom plate, the inner cavity of the baffle constitutes a water collecting trough, and a connecting water pipe is connected between the water collecting trough and the evaporating cylinder.

[0006] Furthermore, the upper end of the evaporating tube is open, the bottom plate is arranged at the open end of the evaporating tube, a through hole is opened on the bottom plate, and the inner cavity of the inner tube is connected with the inner cavity of the evaporating tube through the through hole.

[0007] Furthermore, both ends of the inner tube are connected, the upper end surface of the outer tube is higher than the upper end surface of the inner tube, the upper end of the outer tube is closed, the lower end of the outer tube is sealed and connected to the upper surface of the bottom plate, and the condensation channel is connected to the cavity of the inner tube.

[0008] Furthermore, the top of the inner cavity of the outer tube is configured as a conical structure.

[0009] Furthermore, there are multiple condensation structures, and the multiple condensation structures are divided into three circles: inner, middle and outer circles and are arranged on the bottom plate. The inner circle has one condensation component, the middle circle has seven condensation components, and the outer circle has fourteen condensation components.

[0010] Furthermore, the condensation channels of the seven condensation components on the middle circle are connected in sequence through a first connecting pipe, the condensation channels of the fourteen condensation components on the outer circle are connected in sequence through a second connecting pipe, the condensation channels of the condensation components of the inner circle are connected to the condensation channels of the condensation components of the middle circle through a first connecting pipe, and the condensation channels of the condensation components of the middle circle are connected to the condensation channels of the condensation components of the outer circle through a second connecting pipe.

[0011] Furthermore, a condensation water recovery pipe is connected to the bottom of the condensation channel of one of the condensation components on the outer ring.

[0012] Furthermore, a plurality of convex columns are arranged on the inner bottom wall of the evaporating cylinder along the axial direction of the evaporating cylinder, and the heating element has a plurality of convex columns corresponding to the convex columns one by one, and the heating element is fixedly inserted in the corresponding convex columns.

[0013] Furthermore, the evaporating cylinder and the convex column are an integrally formed structure.

[0014] Furthermore, the evaporating cylinder and the convex column are made of transparent glass, and the heating element is a heating tube.

[0015] The beneficial effects of the utility model are as follows: in the evaporative condensation type high-concentration brine concentration device of the utility model, water vapor rises through the channel of the inner tube and then completes the condensation work in the outer tube. The rising and condensation of the steam are carried out independently in different pipes, which is conducive to the formation of condensed water. At the same time, the high-concentration brine added to the evaporating cylinder is first sprayed on the outer tube through the spray component, which reduces the temperature of the outer tube, so that when the steam contacts the outer tube, it can be more conducive to the generation of condensed water, thereby improving the condensation effect and greatly improving the progress of brine concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional diagram of the evaporation-condensation type high-concentration salt water concentration device of the utility model;

[0018] Figure 2 yes Figure 1 A stereoscopic view of a condensation component and a spray component in the evaporative condensation type high-concentration salt water concentration device from another perspective;

[0019] Figure 3 yes Figure 1 A top view of a condensation component in an evaporative condensation type high-concentration salt water concentration device is shown;

[0020] Figure 4 yes Figure 1 A top view of the evaporative condensation high-concentration salt water concentration device shown;

[0021] Figure 5 yes Figure 4 The sectional view along AA of the evaporative condensation high-concentration brine concentration device is shown.

[0022] In the figure: 1. evaporating cylinder, 11. convex column, 2. heating element, 3. condensing assembly, 31. bottom plate, 311. through hole, 312. baffle, 310. water collecting tank, 313. bracket, 32. condensing structure, 321. inner tube, 322. outer tube, 320. condensing channel, 33. first connecting tube, 34. second connecting tube, 35. first connecting tube, 36. second connecting tube, 37. condensed water recovery pipe, 4. spray assembly, 41. water distribution pipe, 42. nozzle, 5. connecting water pipe. DETAILED DESCRIPTION

[0023] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0024] See also Figure 1-Figure 5 The utility model provides an evaporation-condensation type high-concentration salt water concentration device, comprising an evaporation cylinder 1, a heating element 2, a condensation component 3 and a spray component 4. The evaporation cylinder 1 is used to contain high-concentration salt water to be heated. The heating component is installed at the bottom of the evaporation cylinder 1. The heating element 2 is used to heat the evaporation cylinder 1 to boil the high-concentration salt water. The condensation component 3 is installed on the top of the evaporation cylinder 1. The water vapor generated after the high-concentration salt water inside the evaporation cylinder 1 boils enters the condensation component 3 and condenses therein to form condensed water. The spray component 4 is installed above the condensation component 3. The high-concentration salt water added to the evaporation cylinder 1 is first sprayed on the condensation component 3 under the action of the spray component 4, and then transported to the evaporation cylinder 1 to replenish the evaporation cylinder 1 with water.

[0025] See also Figure 5 The evaporating tube 1 is roughly a cylindrical structure with an opening at the upper end. The heating element 2 is in contact with the evaporating tube 1. The heating element 2 is an element that can generate heat after being energized. The heat generated by the heating element 2 after being energized will be transferred to the high-concentration brine in the evaporating tube 1 in the form of heat transfer, thereby causing the high-concentration brine to boil. In this embodiment, a plurality of protrusions 11 are arranged on the inner bottom wall of the evaporating tube 1 along the axial direction of the evaporating tube 1. There are a plurality of heating elements 2, and they correspond one to one to the protrusions 11. The heating element 2 is fixedly inserted into the corresponding protrusions 11. The plurality of protrusions 11 are evenly installed on the inner bottom wall of the evaporating tube 1, so that the distance between each two adjacent protrusions 11 is equal, so that the high-concentration brine in the evaporating tube 1 can be evenly heated.

[0026] As a preferred embodiment, the evaporation tube 1 and the convex column 11 are an integrally formed structure and are made of transparent glass material, and the heating element 2 is a heating tube. The transparent evaporation tube 1 and the convex column 11 allow the user to observe the evaporation of the high-concentration salt water in the evaporation tube 1. In other embodiments, the heating element 2 can also be a heating wire or a heating plate arranged on the outer wall of the evaporation tube 1, which is not limited here.

[0027] The condensation assembly 3 includes a base plate 31 and a plurality of condensation structures 32 installed on the base plate 31. The base plate 31 is fixedly connected to the upper end opening of the evaporator tube 1. Each condensation structure 32 includes an inner tube 321 and an outer tube 322. The inner tube 321 and the outer tube 322 are both fixedly connected to the upper surface of the base plate 31. The outer tube 322 is sleeved on the outside of the inner tube 321. Both ends of the inner tube 321 are through-connected. The upper end surface of the outer tube 322 is higher than the upper end surface of the inner tube 321. The upper end of the outer tube 322 is closed. The lower end of the outer tube 322 is sealed and connected to the upper surface of the base plate 31. The inner cavity of the inner tube 321 is interconnected with the inner cavity of the evaporator tube 1. The space enclosed between the inner tube 321 and the outer tube 322 constitutes a condensation channel 320. The condensation channel 320 is interconnected with the cavity of the inner tube 321.

[0028] When in use, after the high-concentration brine in the evaporating tube 1 is heated and boiled, the generated water vapor enters upward into the inner cavity of the inner tube 321. After passing through the inner tube 321 and contacting the outer tube 322, the water vapor will condense on the inner tube wall of the outer tube 322. The formed condensed water flows downward through the inner tube wall of the outer tube 322 to the bottom of the condensation channel 320 and gathers.

[0029] Please combine Figure 2 As a preferred embodiment, a through hole 311 is opened on the bottom plate 31 , and the inner cavity of the inner tube 321 is connected with the inner cavity of the evaporating tube 1 through the through hole 321 .

[0030] As a preferred embodiment, the top of the inner cavity of the outer tube 322 is set to a conical structure, and the tip of the conical structure is located at the top. In this way, when the water vapor contacts the top of the outer tube 322 and condenses to form condensed water, it will flow into the condensation channel 320 along the inclined surface of the conical structure, thereby facilitating the collection of the condensed water.

[0031] The condensation structure 32 is provided in multiple numbers, which improves the condensation efficiency. In this embodiment, the multiple condensation structures 32 are divided into three circles, namely, inner, middle and outer circles, and are arranged on the bottom plate 31. The inner circle has one condensation component 32, the middle circle has seven condensation components 32, and the bottoms of the condensation channels 320 of the seven condensation components 32 are sequentially connected through the first connecting pipe 33. The outer circle has fourteen condensation components 32, and the bottoms of the condensation channels 320 of the fourteen condensation components 32 are sequentially connected through the second connecting pipe 34. The bottoms of the condensation channels 320 of the condensation components 32 of the inner circle are connected to the condensation channel 320 of one condensation component 32 on the middle circle. The bottoms of the condensation channels 320 of the condensation components 32 on the middle ring are connected through a first connecting pipe 35, the bottoms of the condensation channels 320 of a condensation component 32 on the middle ring are connected to the bottoms of the condensation channels 320 of a condensation component 32 on the outer ring through a second connecting pipe 36, and the bottoms of the condensation channels 320 of a condensation component 32 on the outer ring are connected to a condensation water recovery pipe 37, so that during use, the condensation water in the condensation channel 320 of any condensation component 32 will flow into the condensation water recovery pipe 37, thereby recovering the condensation water in the condensation channel 320. In this embodiment, the number and arrangement of the condensation structures 32 are not specifically limited.

[0032] The spray assembly 4 includes a water distribution pipe 41 and a spray head 42 installed on the water distribution pipe 41. The number of the spray heads 42 is the same as the number of the condensation structures 32, and one spray head 42 is correspondingly arranged above one condensation structure 32. When in use, the high-concentration salt water to be heated enters the water distribution pipe 41 and then sprays down from the spray head 42. The spray water is sprayed on the outer tube 322, which can cool the outer tube 322 and reduce the temperature of the outer tube 322. In this way, when the hot steam contacts the cooler outer tube 322, it is more conducive to the generation of condensed water, thereby improving the condensation effect.

[0033] An annular baffle 312 is provided at the edge of the upper surface of the bottom plate 31, and the baffle 312 surrounds the condensation structure 32. The inner cavity of the baffle 312 forms a water collecting groove 310. A connecting water pipe 5 is connected between the water collecting groove 310 and the evaporation tube 1. A water pump (not shown in the figure) is installed on the connecting water pipe 5. When in use, the water sprayed on the condensation structure 32 falls into the water collecting groove 310, and can be transported to the inside of the evaporation tube 1 through the connecting water pipe 5 under the action of the water pump, thereby replenishing the evaporation tube 1.

[0034] In addition, a bracket 313 is fixedly connected to the top of the baffle 312 , and the water distribution pipe 41 is fixedly connected to the bracket 313 , so as to fix the spray assembly 4 above the condensation assembly 32 .

[0035] In the evaporative condensation high-concentration salt water concentration device of the utility model, water vapor rises through the channel of the inner tube 321, and then completes the condensation work in the outer tube 322. The rising and condensation of the steam are carried out independently in different pipes, which is conducive to the formation of condensed water. At the same time, the high-concentration salt water added to the evaporating cylinder 1 is first sprayed on the outer tube 322 through the spray component 4, which reduces the temperature of the outer tube 322, so that when the steam contacts the outer tube 322, it can be more conducive to the generation of condensed water, thereby improving the condensation effect and greatly improving the progress of salt water concentration.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An evaporative condensation high-concentration brine concentration device, characterized in that: It includes an evaporating cylinder, a heating element installed on the evaporating cylinder, a condensing assembly arranged on the top of the evaporating cylinder and a spraying assembly arranged above the condensing assembly, the condensing assembly includes a base plate connected to the top of the evaporating cylinder and a condensing structure arranged on the base plate, the condensing structure includes an inner tube connected to the evaporating cylinder and an outer tube sleeved on the outside of the inner tube, a condensing channel is formed between the inner tube and the outer tube, the spraying assembly includes a water distribution pipe and a spray head installed on the water distribution pipe, the spray head corresponds to the condensing structure, an annular baffle is provided on the base plate, the inner cavity of the baffle constitutes a water collecting trough, and a connecting water pipe is connected between the water collecting trough and the evaporating cylinder.

2. The evaporative condensation high-concentration salt water concentration device according to claim 1, characterized in that: The upper end of the evaporating tube is open, the bottom plate is arranged at the open end of the evaporating tube, a through hole is opened on the bottom plate, and the inner cavity of the inner tube is connected with the inner cavity of the evaporating tube through the through hole.

3. The evaporative condensation high-concentration salt water concentration device according to claim 1, characterized in that: The two ends of the inner tube are connected, the upper end surface of the outer tube is higher than the upper end surface of the inner tube, the upper end of the outer tube is closed, the lower end of the outer tube is sealed and connected to the upper surface of the bottom plate, and the condensation channel is connected to the cavity of the inner tube.

4. The evaporative condensation high-concentration salt water concentration device according to claim 3, characterized in that: The top of the inner cavity of the outer tube is configured as a conical structure.

5. The evaporative condensation high-concentration salt water concentration device according to claim 1, characterized in that: There are multiple condensation structures, which are divided into three circles: inner, middle and outer circles and are arranged on the bottom plate. The inner circle has one condensation component, the middle circle has seven condensation components, and the outer circle has fourteen condensation components.

6. The evaporation-condensation high-concentration salt water concentration device according to claim 5, characterized in that: The condensation channels of the seven condensation components on the middle circle are connected in sequence through the first connecting pipe, the condensation channels of the fourteen condensation components on the outer circle are connected in sequence through the second connecting pipe, the condensation channels of the condensation components of the inner circle are connected to the condensation channels of the condensation components of the middle circle through the first connecting pipe, and the condensation channels of the condensation components of the middle circle are connected to the condensation channels of the condensation components of the outer circle through the second connecting pipe.

7. The evaporation-condensation high-concentration salt water concentration device according to claim 6, characterized in that: The bottom of the condensation channel of one of the condensation components on the outer ring is connected with a condensation water recovery pipe.

8. The evaporation-condensation high-concentration salt water concentration device according to claim 1, characterized in that: A plurality of convex columns are arranged on the inner bottom wall of the evaporating cylinder along the axial direction of the evaporating cylinder. There are a plurality of heating elements, which correspond to the convex columns one by one. The heating elements are fixedly inserted in the corresponding convex columns.

9. The evaporative condensation high-concentration salt water concentration device according to claim 8, characterized in that: The evaporating cylinder and the convex column are an integrally formed structure.

10. The evaporation-condensation high-concentration salt water concentration device according to claim 9, characterized in that: The evaporating cylinder and the convex column are made of transparent glass, and the heating element is a heating tube.

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