CN214913508U - Condensing device for evaporation concentration - Google Patents
Condensing device for evaporation concentration Download PDFInfo
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- CN214913508U CN214913508U CN202022913126.1U CN202022913126U CN214913508U CN 214913508 U CN214913508 U CN 214913508U CN 202022913126 U CN202022913126 U CN 202022913126U CN 214913508 U CN214913508 U CN 214913508U
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Abstract
The utility model relates to the technical field of hazardous waste evaporation and concentration systems, in particular to a condensing device for evaporation and concentration, which comprises a circulating condensing system, a pH value adjusting system and a negative pressure system; the negative pressure system is communicated with a feed inlet of the circulating condensation system, and the pH value adjusting system is connected with a discharge outlet of the circulating condensation system. The utility model discloses a present dangerous waste liquid has been solved and strong corrosive gas is produced easily at the evaporative concentration in-process, causes corrosion damage to the condenser, and then leads to leaking, pollutes the safety problem of cooling water.
Description
Technical Field
The utility model relates to a hazardous waste evaporative concentration system technical field, in particular to a condensing equipment for evaporative concentration.
Background
The hazardous waste refers to waste with hazardous characteristics listed in national hazardous waste lists or identified according to national hazardous waste identification standards and methods. Generally, it refers to a hazardous property or properties, such as corrosiveness, toxicity, flammability, reactivity, or infectivity, or it refers to a hazardous property or properties that are not excluded, may have a harmful effect on the environment or human health, and need to be managed as hazardous waste.
The hazardous waste is generally treated by means of physical, chemical, biological, thermal and curing treatments. Wherein the liquid hazardous waste is usually concentrated by evaporation.
In the existing evaporation concentration process, due to the change of waste liquid components and treatment working conditions, strong corrosive gas is easily generated, the condenser is corroded and damaged, and then the safety problems of leakage and cooling water pollution are caused.
Therefore, a condensing device for evaporation concentration is produced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a utility model aims at providing a condensing equipment for evaporative concentration has mainly solved current dangerous waste liquid and has produced strong corrosive gas easily at the evaporative concentration in-process, causes corrosion damage to the condenser, and then leads to leaking, pollutes the safety problem of cooling water.
The utility model provides a condensing device for evaporation concentration, which comprises a circulating condensing system, a pH value adjusting system and a negative pressure system; the negative pressure system is communicated with a feed inlet of the circulating condensation system, and the pH value adjusting system is connected with a discharge outlet of the circulating condensation system;
the negative pressure system is used for enabling waste liquid steam to enter the circulating condensation system;
the circulating condensation system is used for circularly providing condensed water; the waste liquid steam and the condensed water react to form condensed waste liquid; the system is also used for leading the condensed waste liquid to enter the pH value adjusting system;
the pH value adjusting system is used for neutralizing the pH value of the condensed waste liquid in the circulating condensing system;
the circulating condensation system is also used for outputting the neutralized condensation waste liquid.
Preferably, the negative pressure system comprises an ejector and a centrifugal pump; the feed inlet of the centrifugal pump is connected with condensate water, and the discharge outlet of the centrifugal pump is connected with the feed inlet of the ejector; and the discharge hole of the ejector is communicated with the circulating condensing system.
Preferably, the circulating condensation system comprises a heat exchanger and a condensation water tank; flowing cooling water is formed in the heat exchanger; the heat exchanger is arranged between the centrifugal pump and the ejector; and the feeding hole and the discharging hole of the condensed water tank are respectively connected with the discharging hole of the ejector and the feeding hole of the pH value adjusting system.
Preferably, the pH value adjusting system comprises a pH value detector and an alkali liquor dosing pump; the pH value detector is arranged in the condensed water tank; the alkali liquor dosing pump is connected with a feed inlet of the condensed water tank.
Preferably, the pH value adjusting system further comprises a lye storage tank; and a discharge hole of the alkali liquor storage tank is connected with the alkali liquor dosing pump.
Preferably, a liquid level probe is arranged in the condensed water tank; and a discharge hole of the condensed water tank is provided with an adjusting valve.
Preferably, the other discharge port of the condensed water tank is connected with the centrifugal pump through a filter.
From the above, use the utility model provides a technical scheme can obtain following beneficial effect:
firstly, the condensing device provided by the utility model is provided with a pH value adjusting system, so that the acid gas is neutralized to form a neutral solution, and waste liquid steam is filtered by discharging the neutral solution, thereby ensuring the structural integrity of the condenser in the evaporation and concentration process;
second, the utility model provides an in condensing equipment's the control system can be automatically according to the additive amount of the real-time regulation alkali lye of the pH valve in the comdenstion water jar, guarantee that the pH valve of solution in the comdenstion water jar maintains in the neutrality, and avoid the end-free waste of alkali lye, realize remote control and automatically regulated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of the overall structure of a condensing device in embodiment 1 of the present invention;
fig. 2 is a system block diagram of a control system of a condensing device in embodiment 2 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The existing dangerous waste liquid is easy to produce strong corrosive gas in the evaporation concentration process, so that the condenser is corroded and damaged, and the safety problems of leakage and cooling water pollution are caused.
Example 1
As shown in fig. 1, in order to solve the above problem, the present embodiment provides a condensing device for evaporation concentration, which mainly includes a circulating condensing system, a ph adjusting system and a negative pressure system; the negative pressure system is communicated with a feed inlet of the circulating condensation system, and the pH value adjusting system is connected with a discharge outlet of the circulating condensation system; the negative pressure system is used for enabling waste liquid steam to enter the circulating condensation system; the circulating condensation system is used for circularly providing condensed water; the waste liquid steam and the condensed water react to form condensed waste liquid; the system is also used for leading the condensed waste liquid to enter a pH value adjusting system; and the pH value adjusting system is used for neutralizing the pH value of the condensed waste liquid in the circulating condensing system.
More specifically, the negative pressure system includes the ejector 10 and the centrifugal pump 20; the feed inlet of the centrifugal pump 20 is connected with the condensed water, and the discharge outlet is connected with the feed inlet of the ejector 10; the discharge hole of the ejector 10 is communicated with a circulating condensing system.
Preferably, but not limitatively, the ejector 10 and the centrifugal pump 20 can be replaced by other devices having the same function in the present embodiment.
Preferably, but not limited to, the centrifugal pump 20 in this embodiment is mainly used when the horizontal height of the ejector 10 is high, and if the horizontal height of the ejector 10 is low or the centrifugal pump 20 is equal to the condensate water source in the actual application process, whether to add the centrifugal pump 20 may be determined according to the actual application requirement.
In the present embodiment, the centrifugal pump 20 is arranged to make the condensed water enter the ejector 10 and enter the circulating condensing system together with the waste steam to react under the action of the ejector 10.
More specifically, the circulating condensing system includes a heat exchanger 40 and a condensate tank 30; flowing cooling water is formed in the heat exchanger 40; the heat exchanger 40 is disposed between the centrifugal pump 20 and the ejector 10; the feed inlet of the condensed water tank 30 is connected with the discharge port of the ejector 10 and the feed inlet of the pH value adjusting system.
Preferably, but not limited to, in the present embodiment, the condensed water is maintained at the original temperature by performing a further heat exchange between the condensed water and the cooled water in the heat exchanger 40, and the object of the heat exchange may be the cooled water, or a liquid or a gas which can perform a heat exchange with the condensed water after the reaction may be selected as the rest.
In the present embodiment, the heat exchanger 40 is arranged to ensure the temperature of the condensed water, so as to condense the waste liquid steam to form condensed waste liquid under the action of the ejector 10, thereby ensuring the normal operation of the condensing device in the present embodiment.
More specifically, the pH value adjusting system comprises a pH value detector 50 and an alkali liquor dosing pump 60; the pH value detector 50 is arranged in the condensed water tank 30; the alkali liquor dosing pump 60 is connected with the feed inlet of the condensed water tank 30.
Preferably, but not limited to, the ph detector 50 in this embodiment may select a ph sensor, and may also select other ph testing instruments with obvious visual indication.
More specifically, the ph adjustment system further comprises a lye storage tank 70; the discharge port of the alkali liquor storage tank 70 is connected with an alkali liquor dosing pump 60.
More specifically, a liquid level probe 80 is provided inside the condensate tank 30; the discharge port of the condensed water tank 30 is provided with a regulating valve 90, and the other discharge port of the condensed water tank 30 is connected to the centrifugal pump 20 through a filter 100.
Preferably, but not limited to, the adjusting valve 90 of the present embodiment is configured to empty the condensed water tank 30, but specifically, the adjusting valve is adjusted according to the liquid content in the condensed water tank 30.
Example 2
As shown in fig. 2, in order to solve the foregoing problems, the present embodiment provides a control system for a condensing device for evaporation concentration, which mainly includes a controller, and a ph detector 50 and an alkali liquor dosing pump 60 electrically connected to the controller; the pH value detector 50 is used for sending the current pH value in the condensed water tank 30 to the controller; and the controller is used for calculating the quantity of alkali liquor required for neutralizing the condensed waste liquid in the condensed water tank 30 according to the pH value and controlling the alkali liquor dosing pump 60 to input a specific quantity of alkali liquor.
Preferably, but not limited thereto, the present embodiment may adopt a fully automatic control manner, that is, the controller automatically determines the required amount of the alkali solution according to the detected value of the ph detector 50, so as to maintain the solution in the condensed water tank 30 neutral, or may adopt a manual manner to perform adjustment.
Preferably, but not limited to, corresponding to embodiment 1, the liquid level probe 80 is used for detecting the liquid content in the condensed water tank 30, and the adjusting valve 90 determines whether to perform adjustment according to the detected value of the liquid level probe 80, that is, when the liquid level probe 80 detects that the liquid content in the condensed water tank 30 is relatively large, the water output of the adjusting valve 90 is increased, and vice versa, so as to ensure that the liquid content in the condensed water tank 30 is stable.
Preferably, but not limited to, a remote operation or a manual operation mode may also be adopted in this embodiment, that is, on the basis of automatic adjustment, the liquid emptying efficiency or the reaction efficiency of the waste liquid steam and the condensed water is accelerated through remote or manual control.
In summary, the present embodiments 1 and 2 provide a condensing apparatus for evaporation concentration and a control system thereof, which mainly perform a neutralization reaction on liquefied waste liquid steam to convert an acidic waste liquid into a neutral solution, so as to reduce the possibility of damage to a condenser and improve the safety of the waste liquid treatment process.
In this embodiment, the final product in the condensate water jar is neutral solution, and this solution can further accomplish the process of condensation liquefaction with waste liquid steam as the comdenstion water after centrifugal pump, heat exchanger, makes the comdenstion water circulated use in this embodiment, realizes the high-efficient utilization of the energy.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (7)
1. A condensing unit for evaporative concentration, characterized by: comprises a circulating condensation system, a pH value adjusting system and a negative pressure system; the negative pressure system is communicated with a feed inlet of the circulating condensation system, and the pH value adjusting system is connected with a discharge outlet of the circulating condensation system;
the negative pressure system is used for enabling waste liquid steam to enter the circulating condensation system;
the circulating condensation system is used for circularly providing condensed water; the waste liquid steam and the condensed water react to form condensed waste liquid; the system is also used for leading the condensed waste liquid to enter the pH value adjusting system;
the pH value adjusting system is used for neutralizing the pH value of the condensed waste liquid in the circulating condensing system;
the circulating condensation system is also used for outputting the neutralized condensation waste liquid.
2. A condensing unit for evaporative concentration according to claim 1, wherein: the negative pressure system comprises an ejector and a centrifugal pump; the feed inlet of the centrifugal pump is connected with condensate water, and the discharge outlet of the centrifugal pump is connected with the feed inlet of the ejector; and the discharge hole of the ejector is communicated with the circulating condensing system.
3. A condensing unit for evaporative concentration according to claim 2, wherein: the circulating condensation system comprises a heat exchanger and a condensation water tank; flowing cooling water is formed in the heat exchanger; the heat exchanger is arranged between the centrifugal pump and the ejector; and the feed inlet of the condensed water tank is connected with the discharge hole of the ejector and the feed inlet of the pH value adjusting system.
4. A condensing unit for evaporative concentration according to claim 3, wherein: the pH value adjusting system comprises a pH value detector and an alkali liquor dosing pump; the pH value detector is arranged in the condensed water tank; the alkali liquor dosing pump is connected with a feed inlet of the condensed water tank.
5. A condensing unit for evaporative concentration according to claim 4, characterized by: the pH value adjusting system also comprises an alkali liquor storage tank; and a discharge hole of the alkali liquor storage tank is connected with the alkali liquor dosing pump.
6. A condensing unit for evaporative concentration according to claim 5, characterized by: a liquid level probe is arranged in the condensed water tank; and a discharge hole of the condensed water tank is provided with an adjusting valve.
7. A condensing unit for evaporative concentration according to claim 6, wherein: and the other discharge hole of the condensed water tank is connected with the centrifugal pump through a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022913126.1U CN214913508U (en) | 2020-12-07 | 2020-12-07 | Condensing device for evaporation concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022913126.1U CN214913508U (en) | 2020-12-07 | 2020-12-07 | Condensing device for evaporation concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214913508U true CN214913508U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022913126.1U Active CN214913508U (en) | 2020-12-07 | 2020-12-07 | Condensing device for evaporation concentration |
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|---|---|
| CN (1) | CN214913508U (en) |
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2020
- 2020-12-07 CN CN202022913126.1U patent/CN214913508U/en active Active
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