CN217210021U - Air separation pre-cooling system - Google Patents
Air separation pre-cooling system Download PDFInfo
- Publication number
- CN217210021U CN217210021U CN202221054639.4U CN202221054639U CN217210021U CN 217210021 U CN217210021 U CN 217210021U CN 202221054639 U CN202221054639 U CN 202221054639U CN 217210021 U CN217210021 U CN 217210021U
- Authority
- CN
- China
- Prior art keywords
- cooling tower
- water
- circulating water
- pipe
- temperature
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04951—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
- F25J3/04957—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipments upstream of the fractionation unit (s), i.e. at the "front-end"
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
- F25J2205/32—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as direct contact cooling tower to produce a cooled gas stream, e.g. direct contact after cooler [DCAC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
- F25J2205/34—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as evaporative cooling tower to produce chilled water, e.g. evaporative water chiller [EWC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/02—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pump in general or hydrostatic pressure increase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses an air separation precooling system, which comprises an air cooling tower and a water cooling tower, wherein the upper part of the air cooling tower is respectively provided with a water cooling tower low-temperature circulating water inlet pipe and an air cooling tower normal-temperature circulating water inlet pipe, and the water cooling tower low-temperature circulating water inlet pipe is connected with two low-temperature water pumps; the air cooling tower normal atmospheric temperature circulating water inlet pipe is connected with water cooling tower circulating water moisturizing pipe, two normal atmospheric temperature water pumps, and water cooling tower circulating water moisturizing pipe is connected with the former circulating water moisturizing pipe of water cooling tower, and the former circulating water moisturizing pipe of water cooling tower is connected with the water cooling tower, and two normal atmospheric temperature water pumps all are connected with normal atmospheric temperature water pump entry circulating water pipe, and normal atmospheric temperature water pump entry circulating water pipe connects the female pipe of circulating water supply, and the female pipe of circulating water supply still is connected with the former circulating water moisturizing pipe of water cooling tower. The air separation pre-cooling system can safely remove the limitation of the water cooling tower and the air cooling tower of the air separation pre-cooling system on the water supply pressure of the circulating water at low cost, so that the circulating water system has a pressure reduction condition, the lift of a circulating water pump is reduced, and the energy conservation of the circulating water system is greatly realized.
Description
Technical Field
The utility model belongs to the technical field of air separation equipment, concretely relates to empty precooling system that divides.
Background
An air separation pre-cooling system is an important component of an air separation system and plays a role in cooling air and washing air. The conventional air separation precooling system consists of a water cooling tower and an air cooling tower, a water supply main pipe of a circulating water system is divided into two paths to supply circulating water for the water cooling tower and the air cooling tower, wherein one path of circulating water enters the air cooling tower to carry out primary cooling on compressed air after being pressurized by a normal-temperature water pump, and the water quantity is regulated by an inlet regulating valve or a normal-temperature water pump frequency converter and is basically constant; the other path of circulating water directly enters the water cooling tower without pressurization by the pressure of the main pipe, is sprayed and cooled by waste nitrogen, is pressurized by the low-temperature water pump to enter the air cooling tower for secondary cooling of compressed air, and is regulated by the inlet regulating valve or the low-temperature water pump frequency converter and basically constant.
The arrangement of circulating water heat exchangers of the air separation device is usually lower, the circulating water heat exchangers are basically ground heat exchangers, and the required water supply pressure of the circulating water is lower. However, most air separation circulating water systems have high water supply pressure at present, because the water cooling tower and the air cooling tower both belong to contact heat exchangers, once the water supply pressure is reduced, the water supply flow of the circulating water of the water cooling tower and the air cooling tower is influenced, so that the cooling and washing effects of the compressed air are further influenced. Therefore, in order to meet the process requirements of an air cooling tower and a water cooling tower of a precooling system, the water supply pressure of an air separation circulating water system must be increased, and energy consumption is wasted.
Aiming at the energy-saving reconstruction of an air separation circulating water system, the conventional solving means is to increase the processing capacity of a normal temperature water pump and increase two booster pumps (one for one) at a circulating water inlet pipeline of a water cooling tower, the reconstruction work amount is huge, and the reconstruction work amount is limited by various factors such as fields, investment and the like.
Chinese patent (application No. 2021102641185, publication No. CN112944806A) discloses an air separation precooling system, and proposes to use pressure drainage at the bottom of an air cooling tower as water supply of a water cooling tower, so as to solve the problem of high water supply pressure of the whole circulating water system caused by the water supply pressure of the water cooling tower. Firstly, because the pressurized drainage water of the air cooling tower is subjected to heat exchange with high-temperature compressed air, the temperature of the supplied water of the circulating water is higher than that of the water before transformation, so that the temperature of the inlet and outlet water of the water cooling tower is influenced; secondly, the salt content of the circulating water of the pre-cooling system is gradually increased due to the recycling of the part of circulating water, so that the deterioration of the heat exchange capability of heat exchange equipment is easily aggravated, and the blockage of a plurality of filters in the pre-cooling system is accelerated; thirdly, the limitation of the normal-temperature circulating water of the air cooling tower on the water supply pressure of the circulating water system still exists, when the opening of the normal-temperature circulating water inlet regulating valve of the air cooling tower is larger or the frequency of the normal-temperature water pump is higher, the water supply pressure of the circulating water system still cannot be reduced, the energy conservation of a circulating water large system is realized, the normal-temperature water pump still needs to be modified, and the treatment capacity of the circulating water large system is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an empty precooling system that divides has optimized circulating water system's water supply pressure, has reduced the circulating water system energy consumption by a wide margin.
The technical scheme adopted by the utility model is that, an air separation precooling system comprises an air cooling tower and a water cooling tower, wherein a compressed air outlet pipe is arranged at the top of the air cooling tower, a water cooling tower low-temperature circulating water inlet pipe and an air cooling tower normal-temperature circulating water inlet pipe are respectively arranged at the upper part of the air cooling tower, the water cooling tower low-temperature circulating water inlet pipe is respectively connected with two low-temperature water pumps, and the two low-temperature water pumps are both connected with the bottom of the water cooling tower through pipelines; the air cooling tower normal atmospheric temperature circulating water inlet pipe still respectively with connect water-cooling tower circulating water moisturizing pipe, two normal atmospheric temperature water pumps are connected, water-cooling tower circulating water moisturizing pipe and the former circulating water moisturizing pipe connection of water-cooling tower, the former circulating water moisturizing pipe of water-cooling tower still is connected with the upper portion of water-cooling tower, two normal atmospheric temperature water pumps all are connected with normal atmospheric temperature water pump entry circulating water pipe, normal atmospheric temperature water pump entry circulating water pipe connects the female pipe of circulating water supply, the female pipe of circulating water supply still with the former circulating water moisturizing pipe connection of water-cooling tower.
The utility model is also characterized in that,
an air cooling tower low-temperature circulating water inlet adjusting valve and a refrigerating unit are arranged on the water cooling tower low-temperature circulating water inlet pipe.
An air cooling tower normal temperature circulating water inlet regulating valve is arranged on the air cooling tower normal temperature circulating water inlet pipe.
And a water-cooling tower circulating water replenishing regulating valve and a check valve are also arranged on the water-cooling tower original circulating water replenishing pipe.
The middle lower part of the air cooling tower is provided with a compressed air inlet pipe, and the bottom of the air cooling tower is provided with an air cooling tower circulating water outlet pipe.
The beneficial effects of the utility model are that, the utility model discloses an empty precooling system that divides can low-cost, safely remove empty precooling system water-cooling tower and air cooling tower to circulating water supply pressure's restriction, the engineering volume of the newly-increased booster pump of water-cooling tower inlet pipeline when having removed the energy-conserving project of circulating water system from and having implemented makes circulating water system possess the step-down condition, the circulating water pump lift can reduce, realize circulating water system by a wide margin energy-conservation to do not influence the heat transfer effect of water-cooling tower and air cooling tower completely, have very strong feasibility of implementation.
Drawings
Fig. 1 is a schematic structural diagram of an air separation pre-cooling system of the present invention.
In the figure, 1, a compressed air outlet pipe, 2, an air cooling tower, 3, a compressed air inlet pipe, 4, an air cooling tower circulating water outlet pipe, 5, a normal temperature water pump, 6, a normal temperature water pump inlet circulating water pipe, 7, a low temperature water pump, 8, a circulating water supply main pipe, 9, a water cooling tower raw circulating water replenishing pipe, 10, a water cooling tower, 11, a water cooling tower circulating water replenishing regulating valve, 12, a check valve, 13, a refrigerating unit, 14, a water cooling tower low temperature circulating water inlet pipe, 15, a water cooling tower circulating water replenishing pipe, 16, an air cooling tower normal temperature circulating water inlet pipe, 17, an air cooling tower normal temperature circulating water inlet regulating valve, and 18, an air cooling tower low temperature circulating water inlet regulating valve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an air separation precooling system, as shown in figure 1, including air cooling tower 2 and water cooling tower 10, the top of air cooling tower 2 is provided with compressed air outlet pipe 1, the lower part is provided with compressed air inlet pipe 3 in the air cooling tower 2, the bottom of air cooling tower 2 is provided with air cooling tower circulating water outlet pipe 4, the upper portion of air cooling tower 2 is still provided with water cooling tower low-temperature circulating water inlet pipe 14 and air cooling tower normal temperature circulating water inlet pipe 16 respectively, be provided with air cooling tower low-temperature circulating water inlet governing valve 18 and refrigerating unit 13 on water cooling tower low-temperature circulating water inlet pipe 14, water cooling tower low-temperature circulating water inlet pipe 14 still is connected with two low-temperature water pumps 7 respectively, two low-temperature water pumps 7 are all connected with the bottom of water cooling tower 10 through the pipeline;
an air cooling tower normal temperature circulating water inlet regulating valve 17 is arranged on an air cooling tower normal temperature circulating water inlet pipe 16, the air cooling tower normal temperature circulating water inlet pipe 16 is also respectively connected with a water cooling tower circulating water replenishing pipe 15 and two normal temperature water pumps 5, the water cooling tower circulating water replenishing pipe 15 is connected with a water cooling tower original circulating water replenishing pipe 9, the water cooling tower original circulating water replenishing pipe 9 is also connected with the upper part of a water cooling tower 10, a water cooling tower circulating water replenishing regulating valve 11 and a check valve 12 are also arranged on the water cooling tower original circulating water replenishing pipe 9, and the water cooling tower circulating water replenishing regulating valve 11 is close to the upper part of the water cooling tower 10;
the two normal-temperature water pumps 5 are both connected with a normal-temperature water pump inlet circulating water pipe 6, the normal-temperature water pump inlet circulating water pipe 6 is connected with a circulating water supply main pipe 8, and the circulating water supply main pipe 8 is also connected with a water cooling tower original circulating water replenishing pipe 9;
the utility model discloses a precooling system comprises water-cooling tower 10 and air cooling tower 2, and its concrete theory of operation is:
the polluted nitrogen enters from the bottom of the water-cooling tower 10, passes through a tower plate or a packing layer of the water-cooling tower 10 from bottom to top, and is in contact heat exchange with the circulating water sprayed downwards, so that the circulating water is cooled. The cooled low-temperature water is sent to the top of the air cooling tower 2 by the low-temperature water pump 7 to carry out secondary cooling on air cooling tower compressed air, whether the low-temperature circulating water is subjected to intermediate cooling by the refrigerating unit 13 or not can be switched according to the water temperature conditions in different seasons, and the water inflow of the low-temperature circulating water of the air cooling tower 2 is adjusted by the low-temperature circulating water inlet adjusting valve 18 of the air cooling tower; compressed air passes through the packing layer from bottom to top by air cooling tower 2 hypomere compressed air inlet pipe 3, at first with the normal atmospheric temperature circulating water heat transfer, again with the low temperature circulating water secondary heat transfer that low temperature water pump 7 supplied, is discharged by air cooling tower 2 top compressed air outlet pipe 1 at last.
The water supply quantity of the normal-temperature water pump is increased by opening a normal-temperature circulating water inlet adjusting valve 17 of the air cooling tower, increasing the frequency of a frequency converter (if any) of the normal-temperature water pump 5, increasing the impeller of the normal-temperature water pump, replacing the high-output normal-temperature water pump and the like, on the basis of increasing the water supply quantity of the normal-temperature water pump, a water replenishing access point of a water cooling tower of an air separation pre-cooling system is changed, the water supply of a circulating water replenishing pipe 15 of the water cooling tower is changed into the water supply of an outlet branch pipeline of the normal-temperature water pump 5 from the water supply of a circulating water main pipe 8, the water quantity is still adjusted by a circulating water replenishing adjusting valve 11 of the water cooling tower, meanwhile, a check valve 12 is additionally arranged on a water replenishing pipe line of a raw water cooling tower, the operation of an original water replenishing pipe 9 can be automatically switched under the special condition that the normal-temperature water pump 5 stops supplying water, and meanwhile, the reverse flow can be prevented from flowing to the circulating water replenishing end of the public engineering of the water cooling tower when the normal-temperature water pump supplies water.
Because the water cooling tower 10 belongs to the contact heat exchanger, the normal pressure is always kept in the tower, the water-cooling tower flow can be ensured only when the water-cooling tower water replenishing pressure reaches a certain value, and when water is replenished according to the original circulating water replenishing pipe 9 of the water cooling tower, once the circulating water supply pressure is insufficient, the water-cooling tower flow is directly influenced, so that a circulating water system always ensures higher water supply pressure, and the energy consumption of the circulating water system is higher. After the water-cooling tower circulating water replenishing pipe 15 is added, even if the water supply pressure of the circulating water main pipe 8 is reduced, the water-cooling tower 10 can still utilize the normal-temperature water pump 5 to pressurize to obtain sufficient fresh and low-temperature circulating water replenishing water, the engineering quantity of a booster pump is newly added to a water-cooling tower inlet pipeline 9 when a circulating water system energy-saving project is implemented is removed, the circulating water system also has a pressure reduction condition, and the circulating water system can greatly save energy by reducing the pressure and the lift of the circulating water pump.
The utility model discloses an empty precooling system that divides has avoided water-cooling tower circulating water inlet pipeline to increase the loaded down with trivial details flow of booster pump, should reform transform the simple easy implementation of thinking, and the utility work circulating water pump lift can reduce by a wide margin after reforming transform, realizes circulating water system's whole energy-conservation, and the new energy consumption that increases of normal atmospheric temperature water pump can neglect to the festival energy of utility work circulating water pump.
Claims (5)
1. An air separation precooling system is characterized by comprising an air cooling tower (2) and a water cooling tower (10), wherein a compressed air outlet pipe (1) is arranged at the top of the air cooling tower (2), a water cooling tower low-temperature circulating water inlet pipe (14) and an air cooling tower normal-temperature circulating water inlet pipe (16) are respectively arranged at the upper part of the air cooling tower (2), the water cooling tower low-temperature circulating water inlet pipe (14) is respectively connected with two low-temperature water pumps (7), and the two low-temperature water pumps (7) are respectively connected with the bottom of the water cooling tower (10) through pipelines; air cooling tower normal atmospheric temperature circulating water inlet pipe (16) still respectively with be connected water-cooling tower circulating water moisturizing pipe (15), two normal temperature water pumps (5) and be connected, water-cooling tower circulating water moisturizing pipe (15) are connected with water-cooling tower former circulating water moisturizing pipe (9), water-cooling tower former circulating water moisturizing pipe (9) still are connected with the upper portion of water-cooling tower (10), two normal temperature water pumps (5) all are connected with normal atmospheric temperature water pump entry circulating water pipe (6), the female pipe (8) of circulating water supply is connected in normal atmospheric temperature water pump entry circulating water pipe (6), the female pipe (8) of circulating water supply still is connected with water-cooling tower former circulating water moisturizing pipe (9).
2. An air separation precooling system according to claim 1, wherein an air cooling tower low-temperature circulating water inlet regulating valve (18) and a refrigerating unit (13) are arranged on the water cooling tower low-temperature circulating water inlet pipe (14).
3. An air separation pre-cooling system according to claim 1, wherein an air cooling tower normal temperature circulating water inlet regulating valve (17) is arranged on the air cooling tower normal temperature circulating water inlet pipe (16).
4. An air separation pre-cooling system according to claim 1, wherein a water-cooling tower circulating water replenishing regulating valve (11) and a check valve (12) are further arranged on the water-cooling tower raw circulating water replenishing pipe (9).
5. An air separation pre-cooling system according to claim 1, wherein a compressed air inlet pipe (3) is arranged at the middle lower part of the air cooling tower (2), and an air cooling tower circulating water outlet pipe (4) is arranged at the bottom of the air cooling tower (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221054639.4U CN217210021U (en) | 2022-05-05 | 2022-05-05 | Air separation pre-cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221054639.4U CN217210021U (en) | 2022-05-05 | 2022-05-05 | Air separation pre-cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217210021U true CN217210021U (en) | 2022-08-16 |
Family
ID=82777400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221054639.4U Active CN217210021U (en) | 2022-05-05 | 2022-05-05 | Air separation pre-cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217210021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507620A (en) * | 2022-08-17 | 2022-12-23 | 中盐安徽红四方股份有限公司 | Air separation device precooling system using hydraulic turbine drive pump and control system thereof |
-
2022
- 2022-05-05 CN CN202221054639.4U patent/CN217210021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507620A (en) * | 2022-08-17 | 2022-12-23 | 中盐安徽红四方股份有限公司 | Air separation device precooling system using hydraulic turbine drive pump and control system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107155280B (en) | A kind of integration ventilating and cooling heat reclamation device | |
| CN109442818B (en) | Cooling water flow distribution water conservancy balance system | |
| CN210197600U (en) | Secondary pump variable flow chilled water system with energy storage device | |
| CN110455006B (en) | Waste heat recovery and energy cascade utilization coupling system of metallurgical oxygen plant | |
| CN103245205B (en) | Combined condensed steam heat exchange system for direct air cooling steam turbine | |
| CN217210021U (en) | Air separation pre-cooling system | |
| US20190017712A1 (en) | High-efficiency extra-large cooling capacity series chiller in energy station | |
| CN104680247B (en) | A kind of optimization method of industrial circulating water system | |
| CN113923937B (en) | Energy-saving cooling control method and system for data center | |
| CN108775611B (en) | It comprehensively utilizes clean energy resource and produces the cold-hot combined supply system of waste heat | |
| CN217519985U (en) | Cooling water circulating device of air conditioning system of underground powerhouse of hydropower station | |
| CN212691729U (en) | Automatic water feeding device of variable-frequency adjustment deaerator of coagulation pump | |
| CN112556303A (en) | Cooling water circulation system | |
| CN211526841U (en) | Circulating water cooling system for oxygen production plant | |
| CN221259250U (en) | Circulating water cooling system utilizing external discharge cooling capacity of liquid storage tank of oxygenerator set | |
| CN204705218U (en) | A kind of equipment improving water jet system efficiency and condenser vacuum | |
| CN216346513U (en) | System for reducing water content of heat supply steam in flash evaporation mode | |
| CN217031449U (en) | Novel energy-conserving water charging system of data center cooling tower wisdom | |
| CN217435114U (en) | Novel no waste water discharge cooling system | |
| CN108180674A (en) | A kind of modularization regional cold supply system | |
| CN220959207U (en) | Device for providing cold energy for circulating water in circulating water heat exchanger | |
| CN219244053U (en) | Control system of energy power station | |
| CN212108616U (en) | Waste heat recovery system | |
| CN220637175U (en) | Medium-low temperature cooling water system | |
| CN215063145U (en) | Energy-saving system for replacing low-temperature circulating water of coking plant in winter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |