CN219589190U - Lithium bromide absorption type unit protection system - Google Patents
Lithium bromide absorption type unit protection system Download PDFInfo
- Publication number
- CN219589190U CN219589190U CN202320604909.2U CN202320604909U CN219589190U CN 219589190 U CN219589190 U CN 219589190U CN 202320604909 U CN202320604909 U CN 202320604909U CN 219589190 U CN219589190 U CN 219589190U
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- Prior art keywords
- liquid level
- switch
- control system
- lithium bromide
- bromide absorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model relates to the technical field of lithium bromide absorption units, and discloses a lithium bromide absorption unit protection system which is applied to a lithium bromide absorption unit: the protection system comprises a liquid level switch and a control system; the liquid level switch is connected with the control system through a signal connecting wire; the liquid level switch is switched on and off according to the liquid level, and outputs an electric signal to the control system; the control system is used for controlling the on-off of the water pump in the lithium bromide absorption unit. The utility model can realize the automatic detection of the leakage of the existing heat transfer pipe through the control system and the liquid level switch, does not need manual judgment, and has accurate and rapid fault diagnosis. Through control system and water pump interlocking control, can realize the automatic response rapidly after the heat transfer pipe leaks, with the water pump emergency stop, need not the manual stop of operating the pump of manual work, fault handling measure is accurate rapid, realizes intelligent control. Simple structure, control accuracy, the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of lithium bromide absorption type unit, concretely relates to lithium bromide absorption type unit protection system.
Background
In absorption chiller and heat pump equipment, when the unit is in operation, the heat transfer pipe in the container is broken due to factors such as corrosion, abrasion and frozen pipe, cold water/cooling water/hot water rapidly enters the unit from the broken part of the heat transfer pipe under the power of the pump, if no treatment is found in time, the water quantity in the unit is increased, high static pressure is formed, the dynamic pressure of the pump is added, the unit shell is deformed, the unit is seriously scrapped, a large amount of water enters the unit to corrode, and the service life of the unit is reduced. For this situation, an intelligent protection device is needed, so that the unit can quickly judge that external cold water/cooling water/hot water enters the unit, and immediately respond to the external cold water/cooling water/hot water to protect the unit.
Disclosure of Invention
The purpose of the utility model is that: the lithium bromide absorption type unit protection system is used for protecting safe operation of a lithium bromide absorption type unit, preventing a heat transfer tube from being broken, enabling cold water/cooling water/hot water flowing in the tube to rapidly enter the unit from a broken position under the power of a pump, and further gradually increasing the liquid level after water is mixed with solution in the unit, so that the unit is deformed and corroded in a large area, the service life of the unit is seriously influenced, and even safety accidents are caused.
In order to achieve the technical purpose, the technical scheme adopted by the novel device is as follows:
a lithium bromide absorption type unit protection system is applied to a lithium bromide absorption type unit:
the protection system comprises a liquid level switch and a control system;
the liquid level switch is connected with the control system through a signal connecting wire;
the liquid level switch is switched on and off according to the liquid level, and outputs an electric signal to the control system;
the control system is used for controlling the on-off of the water pump in the lithium bromide absorption unit.
Further, the protection system further comprises a switch outer housing; the switch outer shell is used for protecting the liquid level switch; the switch outer shell is arranged outside the lithium bromide absorption unit, and the liquid level switch is arranged in the switch outer shell.
Further, the protection system also comprises an alarm; the alarm is connected with the control system; when the liquid level reaches the position of the liquid level switch, the liquid level switch outputs an electric signal to the control system; and the control system receives the electric signal and then controls the alarm to alarm.
Further, the protection system also comprises a control switch; the control switch is connected with the control system; the control switch is used for controlling the control system, so as to control the on/off of a water pump in the lithium bromide absorption unit; the control switch is also used for turning off the alarm; when the liquid level is reduced to a position below the liquid level switch, an operator can manually close the alarm through the control switch.
Further, the switch outer shell and the unit shell are all welded.
The utility model adopting the technical scheme has the following advantages:
1. the leakage of the heat transfer tube is automatically detected through the control system and the liquid level switch, and the condition that manual judgment is needed is avoided, so that fault diagnosis is more accurate and rapid. When the liquid level switch detects that the liquid level is abnormal, the control system can timely receive the electric signal, and then the start and stop of the water pump are controlled, so that the purpose of automatically detecting leakage is achieved. The intelligent control mode not only improves the stability and the safety of the unit, but also can greatly reduce the complexity and the workload of manual operation and improve the working efficiency and the production benefit.
2. Through the interlocking control of the control system and the pump, once the heat transfer pipe leaks, the control system can immediately stop the operation of the water pump, so that the safety of the unit is protected. Compared with the stopping of a manually operated pump, the automatic response mode is quicker and more accurate, and the risk of further damage to the unit caused by continuous operation of the pump is avoided. The automatic response mode enables fault treatment measures of the unit to be more accurate and rapid, and meanwhile the intelligent level of the whole unit system is improved.
3. The technical scheme has the advantages of simple structure, accurate control and strong practicability. The intelligent control of the unit can be realized by adopting the combination of the liquid level switch and the control system, so that the workload and the complexity of manual intervention are reduced, and the stability and the safety of the unit are greatly improved. The technical scheme is not only suitable for lithium bromide absorption units, but also can be applied to other types of units, and has wide applicability and popularization value.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
fig. 1 is a flow chart of a lithium bromide absorption unit protection system according to the utility model.
The main reference numerals are as follows:
a unit housing 1; a cold water/cooling water/hot water line 2; a water pump 3; a switch outer case 4; a liquid level switch 5; a control system 6; a cold water/cooling water/hot water chamber 7; a heat transfer pipe 8.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, wherein like or similar parts are designated by the same reference numerals throughout the drawings or the description, and implementations not shown or described in the drawings are in a form well known to those of ordinary skill in the art. In addition, directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc. in the embodiments are merely directions with reference to the drawings, and are not intended to limit the scope of the present utility model.
As shown in fig. 1, a lithium bromide absorption unit protection system is applied to a lithium bromide absorption unit, a cold water/cooling water/hot water chamber 7 is arranged in a casing 1 of the lithium bromide absorption unit, and a heat transfer tube 8 is further arranged in the water chamber:
the protection system comprises a liquid level switch 5 and a control system 6; the liquid level switch 5 is connected with the control system 6 through a signal connecting wire; the liquid level switch 5 is switched on and off according to the liquid level, and outputs an electric signal to the control system 6;
the control system 6 is used for controlling the on-off of the water pump 3 in the lithium bromide absorption unit. Specifically, the water pump 3 inputs cold water/cooling water/hot water into the heat transfer pipe 8 through the cold water/cooling water/hot water pipe 2.
The technical scheme is designed for protecting the safe operation of the lithium bromide absorption unit. In the lithium bromide absorption unit, if the heat transfer pipe 8 breaks, cold water/cooling water/hot water flowing in the pipe rapidly enters the unit from the break under the power of the pump, the liquid level returns to be gradually raised after the water is mixed with the solution in the unit, the deformation and large-area corrosion of the unit can be caused, the service life of the unit is seriously influenced, and even safety accidents are caused. Therefore, a protection device for the liquid level switch 5 and the control system 6 is designed so as to take countermeasures in time when the unit is in abnormal conditions and protect the safe operation of the unit.
The protection system comprises a level switch 5 and a control system 6. The liquid level switch 5 controls the switch state through the change of the liquid level, and when the liquid level is higher or lower than a set value, the liquid level switch 5 is turned on and off, and simultaneously, an electric signal is output to the control system 6. The control system 6 can realize the protection of the unit by controlling the on-off state of the water pump 3. The liquid level switch 5 is connected with the control system 6 through a signal connecting wire, so that the liquid level information can be transmitted in real time, and the liquid level judgment is performed.
When the unit normally operates, the liquid level switch 5 is in a normal state, the liquid level in the unit is kept stable and lower than the position of the liquid level switch 5, and the water pump 3 in the control system 6 continues to operate. However, when the unit has abnormal conditions such as breakage of the heat transfer tube 8, the liquid level rises rapidly, and when the liquid level reaches the position of the liquid level switch 5, the liquid level switch 5 is turned on and off, and an electric signal is output to the control system 6. After the control system 6 receives the electric signals, measures can be immediately taken to stop the cold water pump 3/the cooling water pump 3/the hot water pump 3 in an emergency mode, the speed and the quantity of water entering the unit are reduced, the unit is prevented from deforming and corroding in a large area, the safe operation of the unit is protected, the service life is prolonged, and the maintenance cost is reduced.
Therefore, the protection system can realize timely alarming and taking corresponding measures when the unit is abnormal, and protect the safe operation of the unit, thereby improving the reliability and safety of the unit.
In some embodiments, the protection system further comprises a switch outer housing 4; the switch outer shell 4 is used for protecting a liquid level switch 5; the switch outer shell 4 is arranged outside the lithium bromide absorption unit, and the liquid level switch 5 is arranged in the switch outer shell 4.
In the lithium bromide absorption unit, the liquid level switch 5 is a key protection device, and can detect the liquid level of the solution and control the start and stop of the water pump 3 according to the liquid level signal so as to avoid dangerous situations such as water side leakage, unit deformation or corrosion.
In the above-described solution, the switch outer housing 4 functions as a protection level switch 5. The liquid level switch 5 is arranged inside the switch outer shell 4, so that the liquid level switch 5 and the solution in the unit can be effectively isolated, and corrosion and damage to the liquid level switch 5 are reduced. Meanwhile, the stability and reliability of the liquid level switch 5 can be further improved by the switch outer shell 4, and misoperation or failure of the liquid level switch 5 due to unit vibration and the like can be prevented.
In addition, the switch outer shell 4 can also facilitate maintenance personnel to overhaul and replace the liquid level switch 5, so that the situation that the whole unit needs to be disassembled and maintained is avoided, and time and cost are saved. Therefore, the switch outer shell 4 is arranged outside the lithium bromide absorption unit, and the liquid level switch 5 is arranged in the switch outer shell 4, so that the liquid level switch 5 can be effectively protected, and the safety and reliability of the unit are improved.
In some embodiments, the protection system further comprises an alarm; the alarm is connected with the control system 6; when the liquid level reaches the position of the liquid level switch 5, the liquid level switch 5 outputs an electric signal to the control system 6; the control system 6 receives the electric signal and then controls the alarm to alarm.
The alarm is added in the scheme, so that the safety and reliability of the protection system can be improved. When the liquid level switch 5 detects that the liquid level reaches the position where the liquid level switch is located, the liquid level switch can send an electric signal to the control system 6, and after the control system 6 receives the signal, the control system sends out an alarm sound through connection with an alarm to remind operators of carrying out corresponding attention. The method can help operators to find possible problems in the running process of the unit in time and take measures to treat the problems in time, so that the loss and maintenance cost of the unit are reduced. Meanwhile, the alarm can also improve the alertness and the response speed of operators, enhance the safety consciousness and the tension sense of the operators, and better protect the safety of equipment and personnel.
In some embodiments, the protection system further comprises a control switch; the control switch is connected with the control system 6; the control switch is used for controlling the control system 6 so as to control the on/off of the water pump 3 in the lithium bromide absorption unit; the control switch is also used for turning off the alarm; when the liquid level drops to a position below the liquid level switch 5, the operator can manually turn off the alarm by means of the control switch.
The design of adding the control switch can improve the control capability and the operation flexibility of operators. When the liquid level drops to a position below the liquid level switch 5, the alarm will continue to sound if the liquid level switch 5 is still in the on state. At this time, an operator can manually close the alarm by using the control switch so as to better judge the state of the lithium bromide absorption unit and take corresponding measures. Furthermore, the control switch can also be used to control the water pump 3 in the lithium bromide absorption unit in order to shut down the water pump 3 when necessary to protect the unit.
In some embodiments, the switch outer housing 4 is welded to the unit housing 1.
The outer shell 4 of the liquid level switch 5 is connected with the unit shell 1 in an all-welding mode, so that the tightness and the safety of the unit can be improved. The problems of corrosion, leakage and the like can be avoided in full welding, the durability and stability of the unit are improved, and meanwhile, foreign matters and dust can be prevented from entering the unit to influence the normal operation of the unit. In addition, the all-welded connection mode can also reduce the maintenance and repair cost of the unit and improve the service life and stability of the unit.
The lithium bromide absorption type unit protection system provided by the utility model is described in detail. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (5)
1. The utility model provides a lithium bromide absorption formula unit protection system, is applied to lithium bromide absorption formula unit, its characterized in that:
the protection system comprises a liquid level switch (5) and a control system (6); the liquid level switch (5) is connected with the control system (6) through a signal connecting wire;
the liquid level switch (5) is switched on and off according to the liquid level, and outputs an electric signal to the control system (6);
the control system (6) is used for controlling the on-off of the water pump (3) in the lithium bromide absorption unit;
the protection system further comprises a control switch; the control switch is connected with the control system (6); the control switch is used for controlling the control system (6) so as to control the on-off of the water pump (3) in the lithium bromide absorption unit.
2. The lithium bromide absorption unit protection system according to claim 1, wherein:
the protection system further comprises a switch outer housing (4); the switch outer shell (4) is used for protecting the liquid level switch (5); the switch outer shell (4) is arranged outside the lithium bromide absorption unit, and the liquid level switch (5) is arranged in the switch outer shell (4).
3. A lithium bromide absorption unit protection system according to claim 2, wherein:
the protection system further comprises an alarm; the alarm is connected with the control system (6); when the liquid level reaches the position of the liquid level switch (5), the liquid level switch (5) outputs an electric signal to the control system (6); and the control system (6) receives the electric signal and then controls the alarm to alarm.
4. A lithium bromide absorption unit protection system according to claim 3 wherein:
the control switch is also used for turning off the alarm; when the liquid level is reduced to a position below the liquid level switch (5), an operator can manually close the alarm through the control switch.
5. The lithium bromide absorption unit protection system according to claim 4, wherein:
the switch outer shell (4) and the unit shell (1) are all welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320604909.2U CN219589190U (en) | 2023-03-24 | 2023-03-24 | Lithium bromide absorption type unit protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320604909.2U CN219589190U (en) | 2023-03-24 | 2023-03-24 | Lithium bromide absorption type unit protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219589190U true CN219589190U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320604909.2U Active CN219589190U (en) | 2023-03-24 | 2023-03-24 | Lithium bromide absorption type unit protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219589190U (en) |
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2023
- 2023-03-24 CN CN202320604909.2U patent/CN219589190U/en active Active
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