CN112619916A - Ejector, absorber and absorber control method - Google Patents
Ejector, absorber and absorber control method Download PDFInfo
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- CN112619916A CN112619916A CN201910907430.4A CN201910907430A CN112619916A CN 112619916 A CN112619916 A CN 112619916A CN 201910907430 A CN201910907430 A CN 201910907430A CN 112619916 A CN112619916 A CN 112619916A
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- temperature
- shell
- nozzle
- absorber
- pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0433—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B37/00—Absorbers; Adsorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
- F28B3/06—Condensers in which the steam or vapour comes into direct contact with the cooling medium by injecting the steam or vapour into the cooling liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
An ejector, an absorber, and an absorber control method, wherein the ejector is provided on the absorber, comprising: a housing including an input end and an output end, the input end of the housing for inputting a low pressure fluid; the nozzle is arranged inside the shell and comprises an input end and an output end, and the input end of the nozzle is used for inputting high-pressure fluid; a passage for conveying the low-pressure fluid is formed between the nozzle and the housing. The structure of the ejector of the absorber is improved, the absorption form of the absorber is changed from a spraying type to gas-liquid mixed type atomization absorption, the absorption gas-liquid contact area is increased, and the absorption efficiency of the absorber is further improved.
Description
Technical Field
The invention relates to the technical field of heating ventilation, in particular to an ejector, an absorber and an absorber control method.
Background
Existing absorbers can be broadly divided into columns and other equipment. The tower mainly comprises a spray tower, a packed tower, a plate tower and the like, and other equipment such as a tubular wet wall absorber, a spray absorber and the like is also multiple. Generally, the tower is mainly applied to large-scale process equipment, the equipment generally has a large volume due to the limited specific surface area of gas-liquid contact, and if the heat of absorption is large, the equipment is not easy to remove quickly, so that the tower can only be applied to occasions with small heat of absorption.
In the aspects of refrigeration and heating, the absorber is the largest component in the absorption refrigeration system, the heat exchange area accounts for about 40% of the total heat exchange area of the unit, the performance of the absorber directly restricts the overall structure and performance of the refrigeration unit, the absorber is one of the most important components in the absorption refrigeration system, the absorber is realized by adopting a spraying mode at present, the gas-liquid contact specific surface area is small, the absorption efficiency needs to be improved, and the performance of the absorber directly restricts the overall structure and performance of the refrigeration unit.
Disclosure of Invention
Objects of the invention
An object of the present invention is to provide an ejector and an absorber which can increase a gas-liquid contact specific surface area, and a control method for controlling the temperature of the absorber.
(II) technical scheme
To solve the above problem, a first aspect of the present invention provides an ejector provided inside an absorber, comprising: a housing including an input end and an output end, the input end of the housing for inputting a low pressure fluid; the nozzle is arranged inside the shell and comprises an input end and an output end, and the input end of the nozzle is used for inputting high-pressure fluid; a passage for conveying the low-pressure fluid is formed between the nozzle and the housing.
Further, the cross-sectional area of the output end of the nozzle gradually decreases from one side of the output end of the nozzle close to the input end to the other side.
Further, the housing includes a tubular portion and a conical portion; the output end of the shell is arranged at one end of the conical part; the other end of the conical part is communicated with the tubular part; the cross-sectional area of the conical part is gradually increased from one end of the conical part to the other end of the conical part; the input end is disposed on the tubular portion.
Further, the injector further comprises a diffuser pipe; one end of the diffuser pipe is connected with the output end of the shell; the cross-sectional area of the diffuser pipe gradually increases from one end of the diffuser pipe to the other end of the diffuser pipe.
Further, the injector also comprises a baffle plate; the baffle is arranged in the diffuser pipe and is fixedly connected with the shell or the diffuser pipe; a gap exists between the baffle plate and the output end of the shell. .
A second aspect of the invention provides an absorber comprising an ejector as described above.
Further, there are at least two of the injectors; the output end of the housing of one of the injectors is opposite to the output end of the housing of the other of the injectors.
Further, the absorber further comprises a housing; the ejector is disposed within the housing.
Further, the absorber also comprises a heat exchange tube; the heat exchange tube is arranged between the ejector and the shell and used for enabling a heat exchange medium in the heat exchange tube to exchange heat with fluid obtained after the high-pressure fluid and the low-pressure fluid are mixed.
Further, the absorber further comprises a temperature sensor and a temperature controller; the temperature sensor is arranged in the shell, is used for sensing the temperature of the inner space of the shell and sending the temperature to the temperature controller; the temperature controller controls the flow of the heat exchange medium in the heat exchange tube based on the temperature.
Further, the absorber further comprises a pressure sensor and a pressure controller; the pressure sensor is arranged in the high-pressure fluid pipeline, is used for detecting the pressure of the high-pressure fluid and sending the pressure to the pressure controller; the pressure controller adjusts a size of an opening of the nozzle output and/or a pressure of the high pressure fluid based on the temperature and the pressure of the high pressure fluid.
A third aspect of the present invention provides an absorber control method for controlling the above absorber, comprising: detecting a temperature inside the housing of the absorber; judging the relation between the temperature inside the shell and a preset temperature; if the temperature inside the shell is higher than the preset temperature, the flow of the heat exchange medium in the heat exchange tube is increased; if the flow of the cold water is increased to a first preset flow value and the temperature in the shell is still higher than the preset temperature, reducing the size of an opening at the output end of the nozzle; if the temperature inside the shell is lower than the preset temperature, reducing the flow of the heat exchange medium in the heat exchange tube; and if the flow of the heat exchange medium is reduced to a second preset flow value, and the temperature in the shell is still lower than the preset temperature, increasing the size of the opening at the output end of the nozzle.
Further, if the flow rate of the cold water is increased to a first preset flow rate value and the temperature inside the casing is still higher than the preset temperature, the method further includes, after reducing the size of the opening at the output end of the nozzle: if the size of the opening of the output end of the nozzle is reduced to a first preset size, and the temperature inside the shell is still higher than the preset temperature, the pressure of the high-pressure gas is reduced until the temperature inside the shell is within the preset temperature.
Further, if the flow rate of the cold water is reduced to a second preset flow rate value, and the temperature inside the casing is still lower than the preset temperature, increasing the size of the opening at the output end of the nozzle further includes: if the size of the opening of the output end of the nozzle is increased to a second preset size, and the temperature inside the shell is still lower than the preset temperature, the pressure of the high-pressure fluid is increased until the temperature inside the shell is within the preset temperature.
(III) advantageous effects
The technical scheme of the invention has the following beneficial technical effects:
according to the invention, the structure of the ejector in the absorber is improved, so that high-pressure fluid and low-pressure fluid are respectively mixed through two channels, wherein one of the high-pressure fluid and the low-pressure fluid is gas, and the other one of the high-pressure fluid and the low-pressure fluid is liquid, and the mixed fluid can be changed into atomized gas-liquid mixture.
Drawings
Fig. 1 is a front view of an ejector of embodiment 1;
FIG. 2 is a plan view of the ejector of embodiment 1;
FIG. 3 is a top view of a preferred form of the ejector of embodiment 1;
FIG. 4 is a top view of the absorber of example 2;
FIG. 5 is a top view of a preferred form of the absorber of example 2;
FIG. 6 is a side view of a preferred form of the absorber of example 2;
fig. 7 is a flowchart of an absorber control method of embodiment 3.
Reference numerals:
1: a housing; 11: an input end of the housing; 12: an output end of the housing; 13: a tubular portion; 14: a tapered portion; 2: a nozzle; 21: an input end of a nozzle; 22: an output end of the nozzle; 3: a diffuser pipe; 4: a housing; 5: a heat exchange pipe; 6: a motor drive box; 7: a stretchable sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the drawings a schematic view of a layer structure according to an embodiment of the invention is shown. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity. The shapes of various regions, layers, and relative sizes and positional relationships therebetween shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, as actually required.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Before describing the invention in detail, the features of the absorber technique are first introduced:
in industrial production, it is often necessary to make gas-liquid contact with liquid and realize the transfer of substances and energy, and further realize the effective treatment of a gas-liquid system, and the main purposes are as follows:
recovering or capturing useful substances in the gas mixture to prepare a product;
removing certain components in the process gas to purify the gas or realize environmental protection;
utilizing the great amount of absorption heat produced in the absorption process to refrigerate or heat.
The strengthening of the gas-liquid two-phase material exchange and heat exchange processes, apart from the realization of optimal working conditions, strives to carry out the processes to a great extent under favorable hydrodynamic conditions. Thus, there are many types of absorbers, including gas purifiers, gas absorbers, spargers, packed columns, tray columns, and the like.
Example 1
Fig. 1 is a front view of an ejector of embodiment 1; fig. 2 is a plan view of the ejector of embodiment 1.
As shown in fig. 1 and 2, the ejector of the present embodiment is provided on an absorber, and includes: the device comprises a shell, a valve and a control circuit, wherein the shell comprises an input end and an output end, and the input end of the shell is used for inputting low-pressure fluid; the nozzle is arranged in the shell and comprises an input end and an output end, and the input end of the nozzle is used for inputting high-pressure fluid; a passage for conveying a low-pressure fluid is formed between the nozzle and the housing. Generally, the high pressure fluid is a gas and the low pressure fluid is a liquid. The low-pressure liquid enters the channel through the input end of the shell, the high-pressure gas enters the nozzle through the input end of the nozzle and then is sprayed out from the output end of the nozzle to enter the shell, the low-pressure liquid is mixed into a gas-liquid mixture with certain pressure, and the gas-liquid mixture is sprayed to the outside of the sprayer through the output end of the shell.
Specifically, the pressure range of the low-pressure fluid is 0-20 MPa, the pressure range of the high-pressure fluid is 0-30 MPa, and the pressure difference between the high-pressure fluid and the low-pressure fluid is not less than 0.5 MPa.
Specifically, the cross-sectional area of the output end of the nozzle decreases from one side of the output end of the nozzle near the input end to the other, and more specifically, the nozzle is conical.
Specifically, the housing includes a tubular portion and a conical portion; the output end of the shell is arranged at one end of the conical part; the other end of the conical part is communicated with the tubular part; the cross-sectional area of the conical part is gradually increased from one end of the conical part to the other end; the input end of the shell is arranged on the tubular part, more specifically, the conical part is conical, and the axes of the tubular part and the conical part are in the same line.
Preferably, the axis of the nozzle and the axis of the shell are on the same straight line, and the included angle between the nozzle and the axis is smaller than the included angle between the shell and the axis, and further preferably, the difference between the included angles is not smaller than 5 degrees, so that the atomization effect and uniformity of the gas-liquid mixture are better.
Preferably, the inner diameter of the outlet end of the nozzle is smaller than the minimum inner diameter of the outlet end of the shell, so that the mixing of high-pressure gas and low-pressure liquid and the spraying of atomized gas can be facilitated.
FIG. 3 is a top view of a preferred embodiment of the ejector of embodiment 1.
As shown in fig. 3, the injector further includes a motor driving box and a telescopic piece, the telescopic piece is arranged inside the nozzle, one end of the telescopic piece is connected with the motor driving box, and the other end of the telescopic piece extends towards the output end of the nozzle; the motor drive box is used for controlling the size of the opening of the output end of the nozzle by controlling and changing the length of the telescopic piece extending out of the output end of the nozzle.
Preferably, the injector further comprises a diffuser pipe; one end of the diffuser pipe is connected with the output end of the shell; the cross-sectional area of the diffuser pipe gradually increases from one end of the diffuser pipe to the other end. The gas-liquid mixture is sprayed out after being slowly diffused through the diffuser pipe, so that the atomization effect and uniformity of the gas-liquid mixture can be further enhanced, the contact area of gas and liquid is increased, and the absorption efficiency is improved.
Preferably, the injector further comprises a baffle; the baffle is arranged in the diffuser pipe, the radius of the baffle is smaller than the minimum radius of the diffuser pipe, and the baffle is fixedly connected with the shell or the diffuser pipe; there is a gap between the baffle and the output end of the housing, and in general, the size of the gap is at least larger than the radius of the baffle, so as to ensure that the mixed fluid is flushed out from the radial direction. The separation blade sets up with the flow direction of gas-liquid mixture is perpendicular, and the diameter of separation blade is less than the diameter of casing output, the surface that separation blade and gas-liquid mixture contacted is preferably non-smooth face, can be the metal disk of surface unevenness, or for the sheetmetal of shapes such as petal, the separation blade is by a metal post fixed connection on the diffuser pipe inner wall, because the existence of separation blade, the gas-liquid mixture that jets out by the casing disperses after the separation blade striking to take away by gas-liquid mixture all around, increased gas-liquid mixture's atomization effect, reduce the liquid droplet granularity.
Example 2
Fig. 4 is a top view of the absorber of example 2.
As shown in fig. 4, the absorber of the present embodiment includes the ejector of embodiment 1, and further includes a housing; the ejector is disposed within the housing.
Preferably, there are at least two injectors; the output end of the housing of one injector is opposite to the output end of the housing of the other injector. The gas-liquid mixture sprayed out by the two oppositely arranged sprayers collides again, so that the atomization effect is further increased.
Further preferably, the expansion pipe orifices of the two opposite ejectors are oppositely arranged, the gas-liquid mixture collides to form the gas-liquid mixture rapidly, the gas-liquid mixture is sheared and further atomized in the collision process, and the atomized matter is continuously absorbed in the process of flowing reversely along the high-pressure material flow of the horizontal pipe, so that complete absorption is finally realized.
Preferably, the spacing between two oppositely disposed injectors is less than the distance of the injectors to the inner wall of the absorber shell. So as to avoid affecting the diffusion effect of the atomized gas-liquid mixture.
FIG. 5 is a top view of a preferred form of the absorber of example 2; FIG. 6 is a side view of a preferred form of the absorber of example 2;
as shown in fig. 5 and 6, the absorber further comprises heat exchange tubes; the heat exchange tube is arranged between the ejector and the shell and used for enabling the heat exchange medium in the heat exchanger to exchange heat with the fluid obtained by mixing the high-pressure fluid and the low-pressure fluid.
Preferably, the heat exchange tubes uniformly surround the ejector, and the axial direction of the heat exchange tubes is parallel to the axial direction of the ejector, so that better heat absorption is facilitated.
Preferably, the absorber further comprises a temperature sensor and a temperature controller; the temperature sensor is arranged in the shell and used for sensing the temperature of the inner space of the shell and sending the temperature to the temperature controller; the temperature controller controls the flow of the heat exchange medium in the heat exchange tube based on the temperature.
Preferably, the absorber further comprises a pressure sensor and a pressure controller; the pressure sensor is arranged in the high-pressure fluid pipeline and used for detecting the pressure of high-pressure gas and sending the pressure to the pressure controller; the pressure controller adjusts the size of the opening at the output of the nozzle and/or the pressure of the high pressure fluid based on the temperature and the pressure of the high pressure gas.
Example 3
FIG. 7 is a flow chart of an absorber control method of an embodiment.
As shown in fig. 7, the absorber control method of the present embodiment, which is used for controlling the temperature inside the absorber of embodiment 2, includes: detecting a temperature inside a housing of the absorber; judging the relation between the temperature inside the shell and the preset temperature; if the temperature inside the shell is higher than the preset temperature, the flow of the heat exchange medium in the heat exchange tube is increased; if the flow of the cold water is increased to a first preset flow value and the temperature inside the shell is still higher than the preset temperature, reducing the size of an opening at the output end of the nozzle; if the temperature inside the shell is lower than the preset temperature, reducing the flow of the heat exchange medium in the heat exchange tube; and if the flow of the heat exchange medium is reduced to a second preset flow value and the temperature in the shell is still lower than the preset temperature, increasing the size of the opening at the output end of the nozzle. When the temperature in the absorber shell is abnormal, the temperature in the absorber shell is adjusted by increasing or reducing the flow of the heat exchange medium.
Specifically, the heat exchange medium is cold water, and can absorb heat emitted by the gas-liquid mixture.
Preferably, if the flow rate of the cold water is increased to the first preset flow rate value and the temperature inside the casing is still higher than the preset temperature, the method further comprises the following steps of: if the size of the opening at the output end of the nozzle is reduced to a first preset size and the temperature inside the shell is still higher than a preset temperature, the pressure of the high-pressure gas is reduced until the temperature inside the shell is within the preset temperature.
Preferably, if the flow rate of the cold water is reduced to the second preset flow rate value, and the temperature inside the casing is still lower than the preset temperature, the method further includes, after increasing the size of the opening at the output end of the nozzle: if the size of the opening at the output end of the nozzle is increased to a second preset size, and the temperature inside the shell is still lower than the preset temperature, the pressure of the high-pressure gas is increased until the temperature inside the shell is within the preset temperature.
When the temperature in the absorber shell is abnormal, the temperature in the absorber shell is adjusted by increasing or reducing the flow of the heat exchange medium. If the temperature cannot be completely adjusted to a normal range by adjusting the flow of the heat exchange medium, the heat production of gas-liquid mixing is changed by changing the flow rate of the high-pressure gas, and the flow of the high-pressure gas is changed by changing the size of an opening at the output end of the nozzle, so that the heat production is adjusted. If the temperature cannot be completely adjusted to a normal range by adjusting the flow of the heat exchange medium and changing the size of the opening at the output end of the nozzle, the temperature inside the shell is within a preset temperature by adjusting the pressure of the high-pressure gas.
Specifically, each preset value in embodiment 3 cannot be summarized, and is particularly related to the application scenario of the absorber, now taking an ammonia absorber in an absorption heat converter as an example, the preset temperature Tc is 70 to 180 ℃, in this embodiment Tc is 120 ℃, the first preset flow value is 30L/s, the second preset flow value is 5L/s, wherein the first preset size is 1/3 of the minimum diameter of the diffuser pipe, the second preset size is the minimum diameter of the diffuser pipe, taking the minimum radius of the diffuser pipe as an example, the opening of the nozzle is at most 30cm, and the minimum is 10 cm; the pressure range of the high-pressure material flow is 1-30 MPa.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (14)
1. An ejector disposed inside an absorber, comprising:
a housing (1) comprising an input (11) and an output (12), the input (11) of the housing being for input of a low pressure fluid;
the nozzle (2) is arranged inside the shell (1), the nozzle (2) comprises an input end (21) and an output end (22), and the input end (21) of the nozzle is used for inputting high-pressure fluid;
a channel for conveying the low-pressure fluid is formed between the nozzle (2) and the housing (1).
2. The ejector of claim 1, wherein the cross-sectional area of the nozzle output (22) decreases from side to side of the nozzle output (22) near the nozzle input (21).
3. The injector according to claim 1, characterized in that the housing (1) comprises a tubular portion (13) and a conical portion (14);
the output end (12) of the shell is arranged at one end of the conical part (14);
the other end of the conical part (14) is communicated with the tubular part (13);
the cross-sectional area of the conical part (14) is gradually increased from one end to the other end of the conical part (14);
the input end (11) is arranged on the tubular part (13).
4. The injector according to claim 1, further comprising a diffuser pipe (3);
one end of the diffuser pipe (3) is connected with the output end (12) of the shell;
the cross-sectional area of the diffuser pipe (3) gradually increases from one end of the diffuser pipe (3) to the other end.
5. The injector of claim 4, further comprising a baffle;
the baffle is arranged in the diffuser pipe (3) and is fixedly connected with the shell (1) or the diffuser pipe (3);
a gap exists between the baffle and the output end (12) of the shell.
6. An absorber, characterized in that it comprises an ejector according to claims 1-5.
7. The absorber of claim 6, wherein there are at least two of the injectors;
the output end (12) of the housing of one of the injectors is opposite to the output end (12) of the housing of the other of the injectors.
8. The absorber according to claim 6, further comprising a housing (4);
the ejector is disposed within the housing (4).
9. The absorber according to claim 8, further comprising a heat exchange tube (5);
the heat exchange tube (5) is arranged between the ejector and the shell (4) and is used for enabling a heat exchange medium in the heat exchange tube to exchange heat with fluid obtained by mixing the high-pressure fluid and the low-pressure fluid.
10. The absorber of claim 9, further comprising a temperature sensor and a temperature controller;
the temperature sensor is arranged in the shell (4) and used for sensing the temperature of the inner space of the shell (4) and sending the temperature to the temperature controller;
the temperature controller controls the flow of the heat exchange medium in the heat exchange tube (5) based on the temperature.
11. The absorber of claim 10, further comprising a pressure sensor and a pressure controller;
the pressure sensor is arranged in the high-pressure fluid pipeline, is used for detecting the pressure of the high-pressure fluid and sending the pressure to the pressure controller;
the pressure controller adjusts a size of an opening of the nozzle output (22) and/or a pressure of the high pressure fluid based on the temperature and the pressure of the high pressure fluid.
12. An absorber control method for controlling an absorber according to claims 6-11, comprising:
detecting a temperature inside the housing of the absorber;
judging the relation between the temperature inside the shell and a preset temperature;
if the temperature inside the shell is higher than the preset temperature, the flow of the heat exchange medium in the heat exchange tube is increased;
if the flow of the cold water is increased to a first preset flow value and the temperature in the shell is still higher than the preset temperature, reducing the size of an opening at the output end of the nozzle;
if the temperature inside the shell is lower than the preset temperature, reducing the flow of the heat exchange medium in the heat exchange tube;
and if the flow of the heat exchange medium is reduced to a second preset flow value, and the temperature in the shell is still lower than the preset temperature, increasing the size of the opening at the output end of the nozzle.
13. The method of claim 12, wherein if the flow of cold water increases to a first predetermined flow value and the temperature inside the housing is greater than the predetermined temperature, then reducing the size of the opening at the output of the nozzle further comprises:
if the size of the opening of the nozzle output end is reduced to a first preset size, and the temperature inside the shell is still higher than the preset temperature, the pressure of the high-pressure fluid is reduced until the temperature inside the shell is within the preset temperature.
14. The method of claim 12, wherein if the flow of cold water is reduced to a second predetermined flow value and the temperature inside the housing is less than the predetermined temperature, increasing the size of the opening at the output of the nozzle further comprises:
if the size of the opening of the output end of the nozzle is increased to a second preset size, and the temperature inside the shell is still lower than the preset temperature, the pressure of the high-pressure fluid is increased until the temperature inside the shell is within the preset temperature.
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| CN201910907430.4A CN112619916A (en) | 2019-09-24 | 2019-09-24 | Ejector, absorber and absorber control method |
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| CN201910907430.4A CN112619916A (en) | 2019-09-24 | 2019-09-24 | Ejector, absorber and absorber control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963606A (en) * | 2022-05-26 | 2022-08-30 | 辽宁飞鸿达蒸汽节能设备有限公司 | Working condition adjusting device of gas ejector and gas ejector |
| CN115365885A (en) * | 2022-09-26 | 2022-11-22 | 江苏苏美达铝业有限公司 | Micro-lubricating cooling system |
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| CN115365885B (en) * | 2022-09-26 | 2023-11-24 | 江苏苏美达铝业有限公司 | Trace lubricating and cooling system |
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