Low-temperature evaporator and low-temperature evaporation system

Abstract

The utility model discloses a low-temperature evaporator and a low-temperature evaporation system, and relates to the technical field of low-temperature evaporation, the low-temperature evaporator comprises an evaporation tank, an auxiliary structure and a vibration structure, the evaporation tank is provided with an evaporation cavity, the evaporation cavity is used for containing a solution to be evaporated, and the upper part of the evaporation tank is provided with evaporation holes communicated with the evaporation cavity; the evaporation holes are used for allowing evaporated water vapor to pass through, the auxiliary structure comprises a plurality of crystallization auxiliary parts, the multiple crystallization auxiliary parts are all arranged in the evaporation cavity and distributed at intervals in the vertical direction and the circumferential direction of the evaporation tank, and all the crystallization auxiliary parts extend in the radial direction of the evaporation tank; each crystallization auxiliary part is provided with a first end and a second end which are oppositely arranged in the radial direction of the evaporation tank, the first end is connected with the inner side wall of the evaporation tank, the second end is a free end, and the vibration structure is arranged on the outer wall of the evaporation tank and used for driving the evaporation tank to vibrate. By means of the arrangement, the crystal removing effect of the low-temperature evaporator can be guaranteed, and the service life of the evaporation tank can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature evaporation technical field especially relates to a low temperature evaporator and low temperature evaporation system. BACKGROUND

[0002] In the sewage treatment technical field, evaporator will be used to concentrate the sewage, all adopt evaporator to concentrate the sewage to get high concentration of concentrated liquid or solid form of dangerous waste, and then collect the dangerous waste for disposal, the traditional evaporator is very wasteful of energy because it uses high temperature evaporation, and because the volatilization temperature of solute and solvent is different, a specific temperature is needed to make the solvent volatilize according to the principle, so the low temperature evaporator emerges as the times require

[0003] However, after the low temperature evaporator evaporates the sewage to get the dangerous liquid, the dissolved substances in the dangerous liquid will crystallize and adhere to the evaporator, and the existing method for removing the crystals usually uses the scraping method, but this method is easy to cause damage to the evaporator and affect the service life of the evaporator. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a low temperature evaporator and low temperature evaporation system, which aims to improve the problem that the existing method for removing crystals is easy to cause damage to the evaporator and affect the service life of the evaporator.

[0005] To achieve the above-mentioned purpose, the low temperature evaporator provided by the utility model comprises:

[0006] The evaporation tank has an evaporation cavity for containing the solution to be evaporated, and an evaporation hole is arranged in the upper part of the evaporation tank and communicates with the evaporation cavity, and the evaporation hole is used for passing the evaporated water vapor.

[0007] The auxiliary structure comprises a plurality of crystal auxiliary parts, the plurality of crystal auxiliary parts are arranged in the evaporation cavity, and are arranged in the up-down direction and the circumferential direction of the evaporation tank, each crystal auxiliary part is arranged in the radial direction of the evaporation tank, each crystal auxiliary part has a first end and a second end arranged oppositely in the radial direction of the evaporation tank, the first end is connected to the inner side wall of the evaporation tank, and the second end is a free end.

[0008] The vibration structure is arranged on the outer wall of the evaporation tank, and is used to drive the evaporation tank to vibrate.

[0009] In an embodiment, the cross-sectional area of each crystal auxiliary part gradually increases in the direction from the first end to the second end.

[0010] In an embodiment, the vibration structure comprises:

[0011] a connecting seat arranged on the outer shell of the evaporation tank; and

[0012] a vibration motor arranged on the connecting seat, the vibration motor being used to drive the evaporation tank to vibrate.

[0013] In an embodiment, the low-temperature evaporator further comprises a stirring structure, the stirring structure comprising:

[0014] a rotating shaft arranged in the evaporation cavity along an axis extending in the up-down direction and coaxially arranged with the evaporation tank; and

[0015] a stirring part arranged in the horizontal direction, one end of the stirring part being connected to the rotating shaft to rotate coaxially with the rotating shaft.

[0016] In an embodiment, the stirring structure further comprises:

[0017] a first scraping part arranged at the lower end of the stirring part and abutting against the inner bottom wall of the evaporation tank, the first scraping part being used to scrape the crystals on the inner bottom wall of the evaporation tank when the rotating shaft rotates; and

[0018] a second scraping part arranged at the other end of the stirring part in the horizontal direction and abutting against the inner side wall of the evaporation tank, the second scraping part being used to scrape the crystals on the inner side wall of the evaporation tank when the rotating shaft rotates, the second scraping part being provided with an avoiding part used to avoid the plurality of crystal auxiliary parts.

[0019] In an embodiment, the first scraping part comprises a first elastic member and a first scraper plate, the first elastic member elastically connecting the lower end of the stirring part and the first scraper plate, the first scraper plate abutting against the inner bottom wall of the evaporation tank; and / or,

[0020] the second scraping part comprises a second elastic member and a second scraper plate, the second elastic member elastically connecting the other end of the stirring part in the horizontal direction and the second scraper plate, the second scraper plate abutting against the inner side wall of the evaporation tank, the second scraper plate being provided with a plurality of avoiding grooves at one end thereof towards the evaporation tank along the up-down direction, both ends of each avoiding groove in the horizontal direction being provided in a through manner, each avoiding groove corresponding to a plurality of crystal auxiliary parts arranged at the same horizontal height;

[0021] the avoiding part comprises a plurality of avoiding grooves.

[0022] In an embodiment, the plurality of crystal auxiliary parts are arranged in an array.

[0023] In an embodiment, the low-temperature evaporator further comprises a carrier seat arranged below the evaporation tank and elastically connected with the evaporation tank, and the carrier seat is used to carry the evaporation tank.

[0024] In an embodiment, the lower end of the evaporation tank is further provided with a discharge port communicating with the evaporation cavity, and a blocking part is arranged at the discharge port, and the blocking part is arranged in a detachable manner.

[0025] The utility model discloses a low-temperature evaporation system, comprising:

[0026] The low-temperature evaporator, the low-temperature evaporator as described above; and,

[0027] The evaporation cooler is arranged in communication with the evaporation hole, and the evaporation cooler is used to cool the water vapor discharged from the evaporation hole into water.

[0028] In the technical scheme of the utility model, when the solution to be evaporated enters the evaporation cavity to be evaporated at low temperature, the water vapor obtained by evaporation flows to the outside of the evaporation cavity through the evaporation hole, and the concentration of the substances dissolved in the solution in the evaporation cavity rises, at this time, the crystals in the solution will be precipitated, the arrangement of the plurality of crystal auxiliary parts can make the crystals precipitated in the solution adhere to the plurality of crystal auxiliary parts, so as to reduce the number of crystals adhering to the inner wall of the evaporation tank when the amount of crystal precipitation is the same, at this time, the vibration structure works to drive the evaporation tank to vibrate, since the first end of each crystal auxiliary part is connected to the inner wall of the evaporation tank, when the evaporation tank vibrates, the plurality of crystal auxiliary parts will also vibrate with the evaporation tank, at the same time, since the second end of the plurality of crystal auxiliary parts is a free end, the vibration amplitude of the plurality of crystal auxiliary parts is large, so as to remove the crystals adhering to the plurality of crystal auxiliary parts by vibration, so as to make the crystals separate from the crystal auxiliary parts, complete the removal of the crystals, at the same time, since the number of crystals on the inner wall of the evaporation tank is reduced, when the evaporation tank vibrates, the crystals adhering to the evaporation tank can also be removed. By this arrangement, the crystals adhering to the low-temperature evaporator are removed by vibration, the effect is excellent, the amount of scale on the inner wall of the evaporation tank is reduced, the crystals on the inner wall of the evaporation tank are more easily removed, and the service life of the evaporation tank is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creating creative labor.

[0030] Figure 1 The structure diagram of one embodiment of the low-temperature evaporator is provided.

[0031] Explanation of reference numerals:

[0032] 100, low-temperature evaporator; 1, evaporation tank; 11, evaporation hole; 12, discharge port; 13, plugging part; 2, auxiliary structure; 21, crystallization auxiliary part; 3, vibration structure; 31, connecting seat; 32, vibration motor; 4, stirring structure; 41, rotating shaft; 42, stirring part; 43, first scraping part; 44, second scraping part; 45, avoiding part; 5, bearing seat.

[0033] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0036] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B simultaneously satisfying the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0037] The utility model provides a low temperature evaporimeter. Aims at improving the problem that the existing crystallization removal method is easy to cause the damage of evaporimeter, influences the service life of evaporimeter.

[0038] Please refer to Figure 1 In the embodiment of the utility model, the low temperature evaporimeter 100 includes evaporimeter jar 1, auxiliary structure 2 and vibration structure 3, the evaporimeter jar 1 has evaporation chamber, the evaporation chamber is used to accommodate the solution to be evaporated, the upper portion of evaporimeter jar 1 is equipped with the evaporation hole 11 of intercommunication evaporation chamber, the evaporation hole 11 is used for the water vapor of evaporation to pass, the auxiliary structure 2 includes multiple crystallization auxiliary parts 21, multiple crystallization auxiliary parts 21 are all arranged in evaporation chamber, and along the up and down direction and the circumferential direction of evaporimeter jar 1 interval arrangement, each crystallization auxiliary part 21 extends along the radial direction of evaporimeter jar 1 and is arranged, each crystallization auxiliary part 21 has the first end and the second end of opposite arrangement in the radial direction of evaporimeter jar 1, the first end is connected with the inner side wall of evaporimeter jar 1, and the second end is a free end, and the vibration structure 3 is arranged on the outer wall of evaporimeter jar 1, and the vibration structure 3 is used to drive evaporimeter jar 1 to vibrate.

[0039] In the technical scheme of the utility model, when the solution to be evaporated enters into the evaporation chamber to carry out low temperature evaporation, the water vapor obtained by evaporation flows to the outside of the evaporation chamber through the evaporation hole 11, and the concentration of the substances dissolved in the solution in the evaporation chamber rises, at this time, the crystals in the solution will be precipitated, the setting of multiple crystallization auxiliary parts 21 can make the crystals precipitated in the solution adhere to multiple crystallization auxiliary parts 21, so as to reduce the number of crystals adhered to the inner wall of evaporimeter jar 1 when the amount of crystal precipitation is the same, at this time, the vibration structure 3 works to drive evaporimeter jar 1 to vibrate, since the first end of each crystallization auxiliary part 21 is connected with the inner side wall of evaporimeter jar 1, when evaporimeter jar 1 vibrates, multiple crystallization auxiliary parts 21 will also vibrate together with evaporimeter jar 1, at the same time, since the second end of multiple crystallization auxiliary parts 21 is a free end, the vibration amplitude of multiple crystallization auxiliary parts 21 is large, so as to remove the crystals adhered to multiple crystallization auxiliary parts 21 by vibration, so as to make the crystals separate from crystallization auxiliary parts 21, complete the removal of crystals, at the same time, since the number of crystals on the inner wall of evaporimeter jar 1 is reduced, when evaporimeter jar 1 vibrates, the crystals adhered to evaporimeter jar 1 can also be removed. By this setting, the crystals adhered to the low temperature evaporimeter 100 are removed by vibration, the effect is excellent, and the amount of scale on the inner wall of evaporimeter jar 1 is reduced, so that the crystals on the inner wall of evaporimeter jar 1 are more easily removed, so as to improve the service life of evaporimeter jar 1.

[0040] It can be understood that the utility model is not limited to the connecting form of the evaporation tank 1 and the plurality of crystal auxiliary parts 21, in an embodiment of the utility model, the plurality of crystal auxiliary parts 21 are connected to the inner side wall of the evaporation tank 1 by welding, in another embodiment of the utility model, the plurality of crystal auxiliary parts 21 are detachably installed on the inner side wall of the evaporation tank 1, so setting, when any crystal auxiliary part 21 is eroded by crystal for a long time and is damaged too much, the user can detach the crystal auxiliary part 21 from the inner side wall of the evaporation tank 1 to replace, thereby further improving the service life of the low-temperature evaporator 100.

[0041] It should be noted that the utility model is also not limited to the specific shape of the crystal auxiliary part 21, in an embodiment of the utility model, the cross-sectional area of each crystal auxiliary part 21 gradually decreases along the direction from the first end to the second end, so setting, the connecting area of the crystal auxiliary part 21 and the evaporation tank 1 can be increased, thereby ensuring the installation stability of the crystal auxiliary part 21.

[0042] In another embodiment of the utility model, the cross-sectional area of each crystal auxiliary part 21 is uniformly unchanged in the horizontal direction, so setting, the manufacturing cost of the crystal auxiliary part 21 can be reduced, thereby reducing the manufacturing cost of the low-temperature evaporator 100.

[0043] In still another embodiment of the utility model, the cross-sectional area of each crystal auxiliary part 21 gradually increases along the direction from the first end to the second end. So setting, when the evaporation tank 1 is driven to vibrate by the vibration structure 3, the evaporation tank 1 drives the plurality of crystal auxiliary parts 21 to vibrate together, the crystal auxiliary part 21 can improve the vibration amplitude of itself without affecting the vibration frequency of itself, thereby improving the effect of removing the crystal attached to the crystal auxiliary part 21, to improve the removal effect of the crystal of the low-temperature evaporator 100.

[0044] Of course, in other embodiments of the utility model, the crystal auxiliary part 21 can also be provided in other structural forms, specifically, when actually setting, it can be selected according to requirements, and the utility model does not limit this.

[0045] It should be noted that the utility model is also not limited to the specific working time of the vibration structure 3, in an embodiment of the utility model, the vibration structure 3 is set to work continuously for a long time, so that the evaporation tank 1 and the plurality of crystal auxiliary parts 21 can be driven to vibrate at any time, thereby removing the crystal attached thereto.

[0046] And in another embodiment of the utility model, the vibration structure 3 runs vibration time B in every preset time A, thereby improve the service life of low temperature evaporator 100.

[0047] It can be understood that the utility model does not limit the specific time of A and B, and in actual setting, can be selected according to demand, only need to ensure that the evaporation tank 1 and multiple crystallization auxiliary parts 21 can remove the crystallization attached on itself basically.

[0048] Similarly, the utility model also does not limit the specific structure form of vibration structure 3, in an embodiment of the utility model, vibration structure 3 includes connecting seat 31 and vibration motor 32, connecting seat 31 is located at the shell of evaporation tank 1, vibration motor 32 is located at connecting seat 31, and vibration motor 32 is used to drive evaporation tank 1 to vibrate. Such setting, when needing to drive evaporation tank 1 and multiple crystallization auxiliary parts 21 to vibrate, vibration motor 32 works, and vibration motor 32 can produce continuous and uniform vibration when working, and the crystallization attached on evaporation tank 1 and multiple crystallization auxiliary parts 21 is removed by vibration, so as to guarantee the removal ability of low temperature evaporator 100 to crystallization.

[0049] In another embodiment of the utility model, vibration structure 3 can also include connecting seat 31 and engine, connecting seat 31 is located at the shell of evaporation tank 1, and engine is located at connecting seat 31, and engine is used to drive evaporation tank 1 to vibrate.

[0050] And in other embodiments of the utility model, vibration structure 3 can also include vibration machine, compression screen or other structures, and in actual setting, can be selected according to demand.

[0051] Further, in order to improve the uniformity of the crystals adhered to the evaporation tank 1 and the plurality of crystal auxiliary parts 21, and further improve the removal capacity of the low-temperature evaporator 100 on the crystals, in an embodiment of the present application, the low-temperature evaporator 100 further comprises a stirring structure 4, the stirring structure 4 comprises a rotating shaft 41 and a stirring part 42, the rotating shaft 41 is arranged in the evaporation cavity along the axis extending upward and downward, and is coaxially arranged with the evaporation tank 1, the stirring part 42 is arranged along the horizontal direction, and one end of the stirring part 42 in the horizontal direction is connected with the rotating shaft 41, so as to rotate coaxially with the rotating shaft 41. In this way, when the low-temperature evaporator 100 works, the rotating shaft 41 rotates along the axis extending upward and downward, thereby driving the stirring part 42 to rotate along the axis extending upward and downward, so that the solution in the evaporation cavity can flow uniformly in the evaporation cavity. When the solution precipitates crystals, the crystals can be uniformly adhered to the evaporation tank 1 and the plurality of crystal auxiliary parts 21. Moreover, since the stirring part 42 drives the solution to flow in the evaporation cavity, in this way, when the solution precipitates an equal amount of crystals, it can also reduce the proportion of the crystals adhered to the evaporation tank 1 and the plurality of crystal auxiliary parts 21, and can remove part of the crystals adhered to the evaporation tank 1 and the plurality of crystal auxiliary parts 21 by water flow, so as to further improve the removal capacity of the low-temperature evaporator 100 on the crystals.

[0052] It should be noted that the present application does not limit the specific number of the stirring part 42, in an embodiment of the present application, the stirring part 42 is only provided with one; in another embodiment of the present application, the stirring part 42 is provided with two, and the two stirring parts 42 are respectively arranged at the opposite ends of the rotating shaft 41 in the horizontal direction.

[0053] Of course, in other embodiments of the present application, the stirring part 42 can also be provided in other numbers, which can be selected according to the requirements in actual setting.

[0054] Further, since the vibration cannot remove all the crystals on the evaporation tank 1, in an embodiment of the present application, the stirring structure 4 further comprises a first scraping part 43 and a second scraping part 44, the first scraping part 43 is arranged at the lower end of the stirring part 42 and abuts against the inner bottom wall of the evaporation tank 1, the first scraping part 43 is used to scrape the crystals on the inner bottom wall of the evaporation tank 1 when the rotating shaft 41 rotates, the second scraping part 44 is arranged at the other end of the stirring part 42 in the horizontal direction and abuts against the inner side wall of the evaporation tank 1, the second scraping part 44 is used to scrape the crystals on the inner side wall of the evaporation tank 1 when the rotating shaft 41 rotates, and the second scraping part 44 is provided with an avoiding part 45, which is used to avoid the plurality of crystal auxiliary parts 21. In this embodiment, the first scraping part 43 and the second scraping part 44 can assist in scraping the residual crystals on the inner side wall and the inner bottom wall of the evaporation tank 1, thereby further improving the removal ability of the low-temperature evaporator 100 on the crystals.

[0055] It should be noted that, in this embodiment, due to the arrangement of the vibration structure 3, too many crystals will not be attached to the evaporation tank 1, and therefore the crystals on the inner side wall and the inner bottom wall of the evaporation tank 1 will not give too much resistance to the first scraping part 43 and the second scraping part 44, thereby ensuring the integrity of the inner side wall of the evaporation tank 1.

[0056] Of course, when scraping the residual crystals on the inner bottom wall of the evaporation tank 1 by the first scraping part 43, it is necessary to ensure the scraping efficiency of the first scraping part 43 on the inner bottom wall of the evaporation tank 1 while further reducing the damage to the inner bottom wall of the evaporation tank 1 caused by the scraping work, in an embodiment of the present application, the first scraping part 43 comprises a first elastic member and a first scraper, the first elastic member elastically connects the lower end of the stirring part 42 and the first scraper, and the first scraper abuts against the inner bottom wall of the evaporation tank 1. In this way, the arrangement of the first elastic member can provide sufficient pressing force for the first scraper, so that the first scraper can fully scrape the residual crystals on the inner bottom wall of the evaporation tank 1, and at the same time, when the first scraper encounters resistance during the scraping work, the first elastic member contracts, which can make the first scraper displace upward and downward, thereby reducing the damage to the inner bottom wall of the evaporation tank 1.

[0057] Similarly, when the residual crystals on the inner side wall of the evaporation tank 1 are scraped by the second scraping part 44, it is necessary to further reduce the damage of the scraping work to the inner side wall of the evaporation tank 1 while ensuring the scraping work efficiency of the second scraping part 44 to the inner side wall of the evaporation tank 1, and in an embodiment of the utility model, the second scraping part 44 comprises a second elastic member and a second scraper, the second elastic member is elastically connected to the other end of the stirring part 42 in the horizontal direction and the second scraper, the second scraper abuts against the inner side wall of the evaporation tank 1, a plurality of avoidance grooves are arranged on the end of the second scraper towards the evaporation tank 1 in the up-down direction, the two ends of each avoidance groove in the horizontal direction are arranged in a penetrating manner, each avoidance groove is arranged corresponding to a plurality of crystal auxiliary parts 21 at the same horizontal height, and the avoidance part 45 comprises a plurality of avoidance grooves. In this way, the second elastic member can provide sufficient compression force for the second scraper, so that the second scraper can fully scrape the residual crystals on the inner side wall of the evaporation tank 1, and when the scraping work of the second scraper receives resistance, the second elastic member contracts to make the second scraper in the horizontal direction, thereby reducing the damage to the inner side wall of the evaporation tank 1.

[0058] Meanwhile, the arrangement of a plurality of avoidance grooves can prevent the second scraper from interfering with a plurality of crystal auxiliary parts 21, so that the second scraper avoids a plurality of crystal auxiliary parts 21, thereby ensuring the normal progress of the scraping work.

[0059] In further embodiments of the utility model, in order to facilitate the arrangement of a plurality of avoidance grooves and ensure the scraping efficiency of the second scraper, a plurality of crystal auxiliary parts are arranged in an array.

[0060] In addition, when the evaporation tank 1 vibrates, in order to avoid the installation position of the evaporation tank 1 from deviating or even being damaged due to multiple impacts with the external mounting structure, in an embodiment of the utility model, the low-temperature evaporator 100 further comprises a bearing seat 5, the bearing seat 5 is arranged below the evaporation tank 1 and is elastically connected to the evaporation tank 1, and the bearing seat 5 is used to bear the evaporation tank 1. In this way, when the evaporation tank 1 vibrates, the bearing seat 5 can provide buffering for the vibration of the evaporation tank 1, thereby reducing the influence of the evaporation tank 1 on its own installation stability when vibrating.

[0061] It also needs to be explained that after the low-temperature evaporator 100 removes the crystal attached to itself, the removed crystal also needs to be discharged, and in an embodiment of the utility model, the lower end of the evaporation tank 1 is also provided with a discharge port 12 communicating with the evaporation cavity, and the discharge port 12 is provided with a plugging part 13, which is detachably arranged. In this way, when the low-temperature evaporator 100 is working normally, the plugging part 13 plugs the discharge port 12 to prevent the solution from leaking from the evaporation cavity and affecting the amount of water vapor evaporated by the low-temperature evaporator 100; when the crystal and the solution after evaporation treatment need to be discharged, the plugging part 13 is removed to expose the discharge port 12, at this time, the crystal and the solution after evaporation treatment can be discharged from the discharge port 12 to the outside.

[0062] The utility model also proposes a kind of low-temperature evaporation system, the low-temperature evaporation system includes low-temperature evaporator 100 and evaporative cooler, and the specific structure of the low-temperature evaporator 100 refers to above-mentioned embodiment, since the low-temperature evaporation system of the utility model adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration. The evaporative cooler is provided with the evaporation hole 11, and the evaporative cooler is used to cool the water vapor discharged from the evaporation hole 11 into water.

[0063] The above-mentioned is only the exemplary embodiment of the utility model, and not therefore limit the patent range of the utility model, and all equivalent structural transformations made by using the utility model specification and drawing contents under the technical concept of the utility model or directly / indirectly applied in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A low temperature evaporator, characterized by, The low-temperature evaporator comprises: an evaporation tank having an evaporation cavity for containing a solution to be evaporated, an upper portion of the evaporation tank being provided with an evaporation hole communicating with the evaporation cavity, the evaporation hole being used for passing evaporated water vapor; an auxiliary structure comprising a plurality of crystallization auxiliary portions, each of the plurality of crystallization auxiliary portions being arranged in the evaporation cavity and being spaced apart along the vertical direction and the circumferential direction of the evaporation tank, each of the crystallization auxiliary portions extending along the radial direction of the evaporation tank, each of the crystallization auxiliary portions having a first end and a second end arranged oppositely in the radial direction of the evaporation tank, the first end being connected to the inner side wall of the evaporation tank, and the second end being a free end; and a vibration structure arranged on the outer wall of the evaporation tank, the vibration structure being used to drive the evaporation tank to vibrate.

2. The cryogenic evaporator of claim 1, wherein, The cross-sectional area of each of the crystallization auxiliary portions gradually increases in the direction from the first end to the second end.

3. The cryogenic evaporator of claim 1, wherein, The vibration structure comprises: a connecting seat arranged on the outer shell of the evaporation tank; and a vibration motor arranged in the connecting seat, the vibration motor being used to drive the evaporation tank to vibrate.

4. The cryogenic evaporator of claim 1, wherein, The low-temperature evaporator further comprises a stirring structure, the stirring structure comprising: a rotating shaft arranged in the evaporation cavity along the axis extending in the vertical direction and arranged coaxially with the evaporation tank; and a stirring portion arranged to extend in the horizontal direction, one end of the stirring portion in the horizontal direction being connected to the rotating shaft to rotate coaxially with the rotating shaft.

5. The cryogenic evaporator of claim 4, wherein, The stirring structure further comprises: a first scraping portion arranged at the lower end of the stirring portion and abutting against the inner bottom wall of the evaporation tank, the first scraping portion being used to scrape the crystallization on the inner bottom wall of the evaporation tank when the rotating shaft rotates; and a second scraping portion arranged at the other end of the stirring portion in the horizontal direction and abutting against the inner side wall of the evaporation tank, the second scraping portion being used to scrape the crystallization on the inner side wall of the evaporation tank when the rotating shaft rotates, the second scraping portion being provided with an avoiding portion used to avoid the plurality of crystallization auxiliary portions.

6. The cryogenic evaporator of claim 5, wherein, The first scraping portion comprises a first elastic member and a first scraper, the first elastic member elastically connecting the lower end of the stirring portion and the first scraper, the first scraper abutting against the inner bottom wall of the evaporation tank; and / or The second scraping portion comprises a second elastic member and a second scraper, the second elastic member elastically connecting the other end of the stirring portion in the horizontal direction and the second scraper, the second scraper abutting against the inner side wall of the evaporation tank, the second scraper being provided with a plurality of avoiding grooves at one end of the second scraper facing the evaporation tank and spaced apart in the vertical direction, both ends of each of the avoiding grooves being arranged to be through, and each of the avoiding grooves corresponding to the plurality of crystallization auxiliary portions at the same horizontal height; The avoiding portion comprises the plurality of avoiding grooves.

7. The cryogenic evaporator of claim 5, wherein, The plurality of crystallization auxiliary portions are arranged in an array.

8. The cryogenic evaporator of claim 1, wherein, The low-temperature evaporator further comprises a bearing seat arranged below the evaporation tank and elastically connected to the evaporation tank, the bearing seat being used to bear the evaporation tank.

9. The cryogenic evaporator of claim 1, wherein, The lower end of the evaporation tank is further provided with a discharge opening communicating with the evaporation cavity, the discharge opening being provided with a plugging portion arranged to be detachable.

10. A cryogenic evaporation system characterized in that, The low-temperature evaporator comprises: A cryogenic evaporator, such as the cryogenic evaporator of any one of claims 1 to 9; and, An evaporative cooler is provided in communication with the evaporation hole, the evaporative cooler being configured to cool the water vapor expelled from the evaporation hole to water.

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