CN217479096U - Ammonia distillation energy-saving system and ammonia distillation equipment - Google Patents
Ammonia distillation energy-saving system and ammonia distillation equipment Download PDFInfo
- Publication number
- CN217479096U CN217479096U CN202221568259.2U CN202221568259U CN217479096U CN 217479096 U CN217479096 U CN 217479096U CN 202221568259 U CN202221568259 U CN 202221568259U CN 217479096 U CN217479096 U CN 217479096U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- heat exchanger
- raw water
- energy
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to an environmental protection equipment technical field, concretely relates to evaporate ammonia economizer system and evaporate ammonia equipment. The utility model provides an ammonia distillation energy-saving system, which comprises an ammonia distillation tower, a first heat exchanger and a second heat exchanger; the ammonia still comprises a heating device for heating raw water, a condenser, a raw water inlet pipeline and an ammonia outlet pipeline, wherein the raw water inlet pipeline is connected to the bottom of the ammonia still, the top of the ammonia still is communicated with the ammonia outlet pipeline through the condenser, and the raw water inlet pipeline and the ammonia outlet pipeline are both connected to the first heat exchanger and exchange heat through the first heat exchanger; the second heat exchanger is arranged at the bottom in the ammonia still and is communicated with the first heat exchanger and the heating device. By fully utilizing the residual heat energy in the ammonia outlet pipeline and the ammonia still, the waste of energy sources is avoided while the ammonia still effect is ensured.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field, concretely relates to evaporate ammonia economizer system and evaporate ammonia equipment.
Background
In some waste chemical raw water, the ammonia content is thousands of milligrams per liter, or even higher. When the ammonia nitrogen in the raw water is high, the treatment requirement cannot be met by biochemistry, and ammonia in the raw water is mostly recovered and utilized by adopting an ammonia evaporation mode and meets the requirement of environmental protection.
The current ammonia distillation equipment mostly adopts ammonia distillation towers of different forms, the principle is that a coil pipe is adopted to heat raw water, the equilibrium steam pressure of ammonia gas on the circulating water liquid level is larger than the partial pressure of ammonia gas in a heat carrier, vapor-liquid two-phase countercurrent contact is carried out to carry out mass transfer and heat transfer, thereby ammonia gas is gradually released from the circulating water, a mixture of ammonia vapor and water vapor is obtained at the tower top, liquid ammonia is collected after gaseous ammonia is converted into liquid ammonia, purer circulating water is obtained at the tower bottom, in the process, partial heat energy is not utilized due to frequent heat energy conversion, the waste of energy is caused, and the energy is not beneficial to energy conservation and environmental protection. How to achieve the ideal energy-saving effect while ensuring the ammonia distillation effect has become an important issue of attention in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses (one) the technical problem that solve is: the existing ammonia distillation equipment has serious energy loss, cannot reasonably utilize heat energy generated by the system, causes energy waste, and is not beneficial to energy conservation and environmental protection.
(II) technical scheme
In order to solve the technical problem, an embodiment of the utility model provides an ammonia distillation energy-saving system, which comprises an ammonia distillation tower, a first heat exchanger and a second heat exchanger;
the ammonia still comprises a heating device for heating raw water, a condenser, a raw water inlet pipeline and an ammonia outlet pipeline, the raw water inlet pipeline is connected to the bottom of the ammonia still, the top of the ammonia still is communicated with the ammonia outlet pipeline through the condenser, the raw water inlet pipeline and the ammonia outlet pipeline are both connected to the first heat exchanger, heat exchange is carried out through the first heat exchanger, and residual heat in the ammonia outlet pipeline is collected to preheat the raw water in the raw water inlet pipeline;
the second heat exchanger is arranged at the bottom in the ammonia still and is communicated with the first heat exchanger and the heating device, and the second heat exchanger is used for further collecting heat energy in wastewater at the bottom of the ammonia still and further preheating raw water.
According to the utility model discloses an embodiment, ammonia still includes ammonia storage device and circulating pump, ammonia storage device is including advancing ammonia mouth and loop outlet, advance the ammonia mouth through going out the ammonia pipeline intercommunication to first heat exchanger, loop outlet has connect the circulation pipeline, and passes through the circulation pipeline reaches the circulating pump intercommunication extremely the condenser, the liquefaction of liquid ammonia to accelerating original gaseous ammonia in the ammonia storage device is squeezed into to the condenser in, makes gaseous ammonia change liquid ammonia into liquid ammonia and form the negative pressure in the twinkling of an eye, then flows through one-level heat exchanger and get into ammonia storage device, forms the circulation, reduces evaporating temperature, has improved out ammonia concentration, further energy can be saved simultaneously.
According to the utility model discloses an embodiment, ammonia still includes the backward flow section and the heating heat preservation section that set gradually from high to low, the heating heat preservation section can flow to the bottom of the tower through the second heat exchanger after ammonia still wastewater collection.
According to the utility model discloses an embodiment, be equipped with delivery port and drain at the bottom of the tower, delivery port and drain are used for discharging the waste water of different properties respectively.
According to the utility model discloses an embodiment, heating device is the steam heater of external steam source, set up in ammonia still one side, with steam direct heating, avoid the heat transfer loss that traditional coil pipe heating leads to.
According to the utility model discloses an embodiment, first heat exchanger reaches the second heat exchanger is shell and tube heat exchanger, prevents to cause the phenomenon of heat exchanger jam because of the high viscosity of former aquatic pollutant content is big.
According to the utility model discloses an embodiment, evaporate ammonia economizer system still includes former water tank and raw water pump, former water tank passes through raw water pump and raw water inlet tube intercommunication to first heat exchanger.
The embodiment of the utility model provides an on the other hand still provides an ammonia still equipment, including above-mentioned arbitrary embodiment ammonia still economizer system.
The utility model has the advantages that: the utility model discloses a rationally set up first heat exchanger and second heat exchanger and make the raw water get into heating device's in-process through the raw water inlet tube, carry out the section via first heat exchanger and second heat exchanger and preheat, abundant utilization the surplus heat energy in ammonia outlet pipeline and the ammonia still, avoided the waste of the energy when guaranteeing the ammonia still effect, improved energy utilization, reach energy-concerving and environment-protective effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an ammonia distillation energy-saving system provided by an embodiment of the present invention.
An icon: 1. an ammonia still; 11. a heating device; 12. a condenser; 13. a reflux section; 14. a heating and heat preservation section; 15. a water outlet; 16. a sewage draining outlet; 2. a first heat exchanger; 3. a second heat exchanger; 4. a raw water inlet pipeline; 5. an ammonia outlet pipeline; 6. an ammonia storage device; 61. a circulation pump; 62. a circulation line; 7. a raw water tank; 71. a raw water pump.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understandable, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses an ammonia distillation energy-saving system, which is used for solving the problems that the energy loss of the existing ammonia distillation equipment is serious and the heat energy generated by the system can not be reasonably utilized, and in order to solve the technical problems, the ammonia distillation energy-saving system provided by the utility model comprises an ammonia distillation tower 1, a first heat exchanger 2 and a second heat exchanger 3; the ammonia still 1 comprises a raw water inlet pipeline 4, a heating device 11 for heating raw water, a condenser 12 and an ammonia outlet pipeline 5 which are sequentially communicated, the raw water inlet pipeline 4 is connected to the bottom of the ammonia still 1, the top of the ammonia still 1 is communicated with the ammonia outlet pipeline 5 through the condenser 12, the raw water inlet pipeline 4 and the ammonia outlet pipeline 5 are both connected to the first heat exchanger 2, heat exchange is carried out through the first heat exchanger 2, and residual heat in the ammonia outlet pipeline 5 is collected to preheat raw water in the raw water inlet pipeline 4;
the second heat exchanger 3 is arranged at the bottom in the ammonia still 1 and is communicated with the first heat exchanger 2 and the heating device 11, and the second heat exchanger 3 is used for further collecting heat energy in waste water at the bottom of the ammonia still 1 and further preheating raw water.
Further, the ammonia distillation energy-saving system further comprises an ammonia storage device 6 and a circulating pump 61, the ammonia storage device 6 is an ammonia storage tank, the ammonia storage device 6 comprises an ammonia inlet and a circulating outlet, the ammonia inlet is communicated to the first heat exchanger 2 through an ammonia outlet pipeline 5, the circulating outlet is connected with a circulating pipeline 62 and communicated to the condenser 12 through the circulating pipeline 62 and the circulating pump 61, liquid ammonia in the ammonia storage device 6 is injected into the condenser 12 to accelerate liquefaction of original gaseous ammonia, so that the gaseous ammonia is instantly converted into liquid ammonia and forms negative pressure, and then flows through the primary heat exchanger to enter the ammonia storage device 6 to form circulation, the evaporation temperature is reduced, the ammonia outlet concentration is improved, and energy is further saved.
The evaporation process of ammonia still is generally gone on under the ordinary pressure, and evaporating temperature is close to 100 ℃, and vapor is evaporated out along with the ammonia together, has wasted the energy promptly, and it is also not high to go out ammonia concentration, throws into liquid ammonia cooling through toward condenser 12, makes gaseous state ammonia change liquid ammonia and form the negative pressure in the twinkling of an eye, improves and wears the effect, also can add the vacuum apparatus of taking out at ammonia still 1 top and further guarantee the negative pressure state in the ammonia still 1.
Further, ammonia still 1 includes backward flow section 13 and heating heat preservation section 14 that set gradually from high to low, backward flow section 13 is used for accelerating the liquefaction of vapor, promotes out ammonia concentration, heating heat preservation section 14 can flow to the bottom of the tower through second heat exchanger 3 after ammonia still 1 waste water is collected.
Further, a water outlet 15 and a sewage draining exit 16 are arranged at the bottom of the tower, and the water outlet 15 and the sewage draining exit 16 are respectively used for draining wastewater and sewage with different properties.
Further, the heating device 11 is a steam heater externally connected with a steam source and is arranged on one side of the ammonia still 1. At present, most ammonia distillation equipment adopts a coil pipe for heating, the used material is a common carbon steel welded pipe, and the average heat conductivity coefficient is 45.3w/m ℃. If stainless steel is adopted, the heat conductivity coefficient is lower, so that the thermal efficiency of the equipment is low and the energy consumption is high. The steam is used for direct heating, so that heat transfer loss caused by heating of the traditional coil is avoided.
Furthermore, the first heat exchanger 2 and the second heat exchanger 3 are both tube type heat exchangers, so that the phenomenon that the heat exchangers are blocked due to high content and high viscosity of pollutants in raw water is avoided.
Further, the ammonia distillation energy-saving system further comprises a raw water tank 7 and a raw water pump 71, and the raw water tank 7 is communicated to the first heat exchanger 2 through the raw water pump 71 and a raw water inlet pipe.
The utility model discloses further provide an ammonia distillation equipment, including above-mentioned arbitrary embodiment ammonia distillation economizer system.
The working principle is as follows: when ammonia distillation operation is needed, raw water in the raw water tank 7 is guided to the first heat exchanger 2 through the raw water inlet pipe by the raw water pump 71, the first heat exchanger 2 preheats the raw water primarily by extracting residual heat in the ammonia pipeline 5, enters the heating device 11 after entering the second heat exchanger 3 through the raw water inlet pipeline 4 for secondary preheating, gasifies the raw water, raises the temperature to the preset ammonia distillation temperature, and enters the reflux section 13 through the heating and heat preservation section 14, reflux section 13 further promotes and gets into condenser 12 behind the ammonia concentration and cool off the liquefaction, and circulating pump 61 squeezes into condenser 12 with the liquid ammonia in the ammonia storage device 6, makes gaseous ammonia changes liquid ammonia into liquid ammonia and forms the negative pressure in the condenser 12 in the twinkling of an eye, and liquid ammonia is carried out preliminary preheating to the raw water via first heat exchanger 2 by flowing to ammonia storage device 6, accomplishes the circulation. In the process, the first heat exchanger 2 and the second heat exchanger 3 respectively preheat the raw water by utilizing the residual heat energy in the ammonia distillation process, so that the energy-saving effect is achieved, the energy utilization rate is improved, and the waste of energy is avoided.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to both elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. An ammonia distillation energy-saving system is characterized by comprising an ammonia distillation tower (1), a first heat exchanger (2) and a second heat exchanger (3);
the ammonia still (1) comprises a heating device (11) for heating raw water, a condenser (12), a raw water inlet pipeline (4) and an ammonia outlet pipeline (5), the raw water inlet pipeline (4) is connected to the bottom of the ammonia still (1), the top of the ammonia still (1) is communicated with the ammonia outlet pipeline (5) through the condenser (12), and the raw water inlet pipeline (4) and the ammonia outlet pipeline (5) are both connected to the first heat exchanger (2) and exchange heat through the first heat exchanger (2);
the second heat exchanger (3) is arranged at the bottom in the ammonia still (1) and is communicated with the first heat exchanger (2) and the heating device (11).
2. The energy-saving system for ammonia distillation according to claim 1, further comprising an ammonia storage device (6) and a circulating pump (61), wherein the ammonia storage device (6) comprises an ammonia inlet and a circulating outlet, the ammonia inlet is communicated to the first heat exchanger (2) through an ammonia outlet pipeline (5), the circulating outlet is connected with a circulating pipeline (62), and is communicated to the condenser (12) through the circulating pipeline (62) and the circulating pump (61).
3. The ammonia distillation energy-saving system according to claim 1, wherein the ammonia distillation tower (1) comprises a reflux section (13) and a heating and heat preservation section (14) which are arranged from top to bottom in sequence, and the heating and heat preservation section (14) can collect wastewater of the ammonia distillation tower (1) and then flow to the bottom of the tower through the second heat exchanger (3).
4. The energy-saving system for ammonia distillation according to claim 3, characterized in that the tower bottom is provided with a water outlet (15) and a sewage draining outlet (16).
5. The energy-saving system for ammonia distillation according to any one of claims 1 to 4, characterized in that the heating device (11) is a steam heater externally connected with a steam source and is arranged at one side of the ammonia distillation tower (1).
6. The ammonia distillation energy-saving system according to claim 5, wherein the first heat exchanger (2) and the second heat exchanger (3) are both tube-type heat exchangers.
7. The energy-saving system for ammonia distillation according to claim 5, further comprising a raw water tank (7) and a raw water pump (71), wherein the raw water tank (7) is communicated to the first heat exchanger (2) through the raw water pump (71) and a raw water inlet pipe.
8. An ammonia distillation plant, characterized by comprising the ammonia distillation economizer system of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221568259.2U CN217479096U (en) | 2022-06-22 | 2022-06-22 | Ammonia distillation energy-saving system and ammonia distillation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221568259.2U CN217479096U (en) | 2022-06-22 | 2022-06-22 | Ammonia distillation energy-saving system and ammonia distillation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217479096U true CN217479096U (en) | 2022-09-23 |
Family
ID=83314899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221568259.2U Active CN217479096U (en) | 2022-06-22 | 2022-06-22 | Ammonia distillation energy-saving system and ammonia distillation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217479096U (en) |
-
2022
- 2022-06-22 CN CN202221568259.2U patent/CN217479096U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218011987U (en) | Metal ion battery coating waste gas treatment equipment | |
| CN102748963B (en) | Closed water cooling system with double-evaporative cooling pressure | |
| CN210904991U (en) | High-efficient enrichment facility of low temperature evaporation | |
| CN217479096U (en) | Ammonia distillation energy-saving system and ammonia distillation equipment | |
| CN216393810U (en) | Step-by-step heating non-pressure-bearing lower heat exchange cold boiled water constant temperature water dispenser | |
| CN211521661U (en) | Surplus ammonia water distillation plant that heat energy cyclic utilization | |
| CN211513454U (en) | Integrated evaporator | |
| CN212417246U (en) | Polymer film evaporation concentration system | |
| CN209668993U (en) | Desalination plant based on solar thermal collector | |
| CN208911479U (en) | A kind of waste-heat recovery device of product equipment for purifying | |
| CN219222631U (en) | Industrial waste heat heating unit | |
| CN111056580A (en) | Vinyl sulfate waste water treatment and recovery system | |
| CN216170029U (en) | Multi-effect rectification system | |
| CN211147396U (en) | Waste water waste heat recovery device for strip steel cooling | |
| CN213834611U (en) | Novel high efficiency waste water evaporimeter | |
| CN212403520U (en) | Vacuum seawater desalination system | |
| CN219743914U (en) | Manganese sulfate low-temperature evaporation concentration device | |
| CN213481074U (en) | Exhaust steam recycling device of thermal deaerator | |
| CN220062618U (en) | Coke oven flue gas and ammonia distillation waste heat utilization system | |
| CN216997743U (en) | Low-temperature distillation sewage treatment device utilizing low-grade heat energy | |
| CN216497505U (en) | Intelligent low-temperature impurity removal and concentration equipment | |
| CN218523542U (en) | Nuclear power plant warm drainage waste heat utilization system | |
| CN214791062U (en) | Exhaust steam recovery device of boiler deaerator | |
| CN213865451U (en) | Environment-friendly energy-saving type waste water evaporator | |
| CN211739957U (en) | Evaporator with efficient heat exchange function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |