CN219200183U - Shell-and-tube type marine heat exchanger with automatic flushing function - Google Patents
Shell-and-tube type marine heat exchanger with automatic flushing function Download PDFInfo
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- CN219200183U CN219200183U CN202222951055.3U CN202222951055U CN219200183U CN 219200183 U CN219200183 U CN 219200183U CN 202222951055 U CN202222951055 U CN 202222951055U CN 219200183 U CN219200183 U CN 219200183U
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Abstract
The utility model discloses a shell-and-tube type marine heat exchanger with an automatic flushing function, wherein a heat exchanger main body comprises a cold medium inlet and a cold medium outlet, the cold medium inlet is connected with an external circulation water inlet pipe, the cold medium outlet is connected with an external circulation water outlet pipe, a pressure sensor and a first electric control valve are arranged on the external circulation water inlet pipe, a second electric control valve is arranged on the external circulation water outlet pipe, a water inlet flushing pipe and a water return flushing pipe are respectively connected between the external circulation water inlet pipe and the external circulation water outlet pipe, a third electric control valve is arranged on the water inlet flushing pipe, a fourth electric control valve and a filter are arranged on the water return flushing pipe, and a sewage outlet is arranged on the filter. The shell-and-tube type marine heat exchanger with the automatic flushing function can automatically clean the heat exchanger at regular intervals, automatically flush the heat exchanger under the condition of not influencing the work of the heat exchanger, and clean sundries under the condition of not dismantling the heat exchanger.
Description
Technical Field
The utility model relates to the technical field of shell-and-tube heat exchangers, in particular to a shell-and-tube marine heat exchanger with an automatic flushing function.
Background
The heat exchanger is an important part for heat exchange of equipment on a ship, the main effect is to transfer heat generated by each equipment out through the heat exchanger, the heat exchange mode is usually heat exchange between water and water, the shell-and-tube heat exchanger is a type of heat exchanger commonly used on the ship, and the effect is to exchange heat between outer circulating water and inner circulating water of the equipment, so that the equipment works at reasonable temperature of the inner circulating water. When the heat exchanger is blocked, the customer must stop using the equipment of the heat exchanger, remove the heat exchanger to inspect and clean, not only affect the normal use of the equipment, but also cause a lot of troubles for the user.
In order to solve the problem that the heat exchange function of the shell-and-tube type marine heat exchanger is affected by dirt blockage and realize the function of periodic automatic cleaning of the heat exchanger, the prior heat exchanger needs to be improved.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and aims to provide a shell-and-tube type marine heat exchanger with an automatic flushing function, which can automatically clean the heat exchanger at regular intervals, automatically flush the heat exchanger without affecting the work of the heat exchanger and clean sundries without dismantling the heat exchanger.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the shell-and-tube type marine heat exchanger with the automatic flushing function comprises a heat exchanger main body, wherein the heat exchanger main body comprises a cold medium inlet and a cold medium outlet, and the shell-and-tube type marine heat exchanger is characterized in that:
the cold medium inlet is connected with an external circulation water inlet pipe, the cold medium outlet is connected with an external circulation water outlet pipe, a pressure sensor and a first electric control valve are arranged on the external circulation water inlet pipe, a second electric control valve is arranged on the external circulation water outlet pipe,
a water inlet flushing pipe and a water return flushing pipe are respectively connected between the outer circulation water inlet pipe and the outer circulation water outlet pipe, the joint of the water inlet flushing pipe and the outer circulation water inlet pipe is a first joint, the joint of the water return flushing pipe and the outer circulation water inlet pipe is a second joint, the first joint is positioned at the downstream of the pressure sensor,
the first electrically controlled valve is located between the first connection and the second connection, the second connection being closer to the heat exchanger body than the first connection,
the joint of the water inlet flushing pipe and the outer circulation water outlet pipe is a third joint, the joint of the water return flushing pipe and the outer circulation water outlet pipe is a fourth joint,
the second electrically controlled valve is located between the third junction and the fourth junction, the third junction being closer to the heat exchanger body than the fourth junction;
the water inlet flushing pipe is provided with a third electric control valve, the water return flushing pipe is provided with a fourth electric control valve and a filter, the fourth electric control valve is positioned between the filter and the second joint, and the filter is provided with a sewage outlet.
Preferably: the filter comprises an outer shell and a filter element, and the sewage outlet is formed in the outer shell.
Preferably: and a drain plug screw is arranged at the drain outlet.
Preferably: the outer shell is made of transparent materials.
Preferably: the external circulation water inlet pipe is connected with an external circulation water pump.
Preferably: the heat exchanger main body further comprises a heat medium inlet and a heat medium outlet, wherein the heat medium inlet is connected with the high-temperature water outlet pipe of the engine, and the heat medium outlet is connected with the low-temperature water inlet pipe of the engine.
Preferably: the outer circulation water outlet pipe is provided with an outboard pipe water outlet, and a manual control valve is arranged between the outer circulation water outlet pipe and the outboard pipe water outlet.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the shell-and-tube type marine heat exchanger with the automatic flushing function can control the external circulating water to flow forward or perform reverse flushing on the heat exchanger main body through the pressure sensor matched with the opening and closing of the first electric control valve, the second electric control valve, the third electric control valve and the fourth electric control valve.
When the heat exchanger works normally, the first electric control valve and the second electric control valve are in an open state, the third electric control valve and the fourth electric control valve are in a closed state, external circulating water enters from the external circulating water inlet pipe, enters the heat exchanger through the cold medium inlet of the heat exchanger main body, and is discharged to the outside from the external circulating water outlet pipe.
When the heat exchanger is blocked by sundries, the pressure value detected by the pressure sensor is higher than the pressure value X set by the control unit, and after the pressure value is continued for a period of time Y, the control unit sends out a control signal and an alarm prompt signal, the control signal controls the third electric control valve and the fourth electric control valve to be opened, the first electric control valve and the second electric control valve are closed, and the alarm prompt signal is transmitted to inform a customer that the circulating water outside the heat exchanger is in a reverse flowing state. The external circulating water enters the heat exchanger from the external circulating water inlet pipe through the water inlet flushing pipe, the water flows reversely, enters the filter from the heat exchanger, and is discharged to the outside through the water return flushing pipe and the external circulating water outlet pipe.
The impurity of the circulating water outside the filter is filtered by the filter screen and stored in the filter, the pressure sensor is always monitoring the water inlet pressure in the back flushing process of the heat exchanger, when the water inlet pressure value is smaller than Z, after a period of time A, the control unit sends out a control signal and an alarm prompt signal, the control signal controls the third electric control valve and the fourth electric control valve to be in a closed state, the first electric control valve and the second electric control valve are in an open state, and the alarm prompt signal is transmitted to inform a customer that the circulating water outside the heat exchanger is in a forward flowing state. The external circulation water of the heat exchanger flows according to the normal flow direction.
The shell-and-tube type marine heat exchanger with the automatic flushing function has the automatic back flushing function, can automatically flush the heat exchanger under the condition that the work of the heat exchanger is not affected, and can clean sundries without dismantling the heat exchanger, thereby being convenient for customers to use and being more intelligent.
Drawings
FIG. 1 is a shell and tube type marine heat exchanger with automatic flushing function of the present utility model;
FIG. 2 is a schematic diagram of the heat exchanger in normal operation;
FIG. 3 is a schematic illustration of a backflushing heat exchanger;
in the figure: 1. a heat exchanger body; 2. an external circulation water inlet pipe; 3. a pressure sensor; 4. a first electrically controlled valve; 5. a second electrically controlled valve; 6. an external circulation water outlet pipe; 7. a water inlet flushing pipe; 8. a backwater flushing pipe; 9. a fourth electrically controlled valve; 10. a filter; 101. an outer housing; 102. a filter element; 11. a pollution discharge screw plug; 12. a third electrically controlled valve; A. a first connection; B. a second junction; C. a third junction; D. and a fourth junction.
Detailed Description
The following detailed description of the present utility model is provided with reference to the accompanying drawings and specific embodiments, so as to further understand the purpose, the scheme and the effects of the present utility model, but not to limit the scope of the appended claims.
The shell-and-tube marine heat exchanger with automatic flushing function shown in fig. 1 comprises a heat exchanger main body 1, wherein the heat exchanger main body 1 comprises a cold medium inlet and a cold medium outlet, the cold medium inlet of the heat exchanger main body 1 is connected with an outer circulation water inlet pipe 2, the cold medium outlet of the heat exchanger main body 1 is connected with an outer circulation water outlet pipe 6, a pressure sensor 3 and a first electric control valve 4 are arranged on the outer circulation water inlet pipe 2, a second electric control valve 5 is arranged on the outer circulation water outlet pipe 6,
a water inlet flushing pipe 7 and a water return flushing pipe 8 are respectively connected between the outer circulation water inlet pipe 2 and the outer circulation water outlet pipe 6, a first connecting position A is arranged at the connecting position of the water inlet flushing pipe 7 and the outer circulation water inlet pipe 2, a second connecting position B is arranged at the connecting position of the water return flushing pipe 8 and the outer circulation water inlet pipe 2, the first connecting position A is positioned at the downstream of the pressure sensor 3,
the first electrically controlled valve 4 is located between the first connection a and the second connection B, which is closer to the heat exchanger body 1 than the first connection a,
a third joint C is arranged at the joint of the water inlet flushing pipe 7 and the outer circulation water outlet pipe 6, a fourth joint D is arranged at the joint of the water return flushing pipe 8 and the outer circulation water outlet pipe 6,
the second electrically controlled valve 5 is located between the third junction C and the fourth junction D, the third junction C being closer to the heat exchanger body 1 than the fourth junction D;
the water inlet flushing pipe 7 is provided with a third electric control valve 12, the water return flushing pipe 8 is provided with a fourth electric control valve 9 and a filter 10, the fourth electric control valve 9 is positioned between the filter 10 and the second connecting part B, and the filter 10 is provided with a sewage outlet.
The filter 10 comprises an outer shell 101 and a filter element 102, and the drain outlet is formed in the outer shell 101. A drain plug screw 11 is arranged at the drain outlet.
The filter 10 is used for filtering impurities in the circulating water and temporarily storing a certain amount of impurities, and the outer case 101 is made of transparent material. The outer case 101 of transparent material serves to facilitate observation of the amount of accumulation of impurities. The drain plug 11 is used for removing impurities by unscrewing the drain plug 11 according to the impurity condition in the outer shell 101 made of transparent materials.
The external circulation water inlet pipe 2 is connected with an external circulation water pump. The heat exchanger main body 1 further comprises a heat medium inlet and a heat medium outlet, wherein the heat medium inlet is connected with a high-temperature water outlet pipe of the engine, and the heat medium outlet is connected with a low-temperature water inlet pipe of the engine. The outer circulation water outlet pipe 6 is provided with an outboard pipe water outlet, and a manual control valve is arranged between the outer circulation water outlet pipe 6 and the outboard pipe water outlet. The external circulation water is controlled by a manual control valve to be discharged from the external circulation water outlet pipe 6.
The shell-and-tube type marine heat exchanger with the automatic flushing function has the following working processes:
as shown in fig. 2, when the heat exchanger works normally, the first electric control valve 4 and the second electric control valve 5 are in an open state, the third electric control valve 12 and the fourth electric control valve 9 are in a closed state, external circulating water enters from the external circulating water inlet pipe 2, enters the heat exchanger through a cold medium inlet of the heat exchanger main body 1, and is discharged to the outside from the external circulating water outlet pipe 6.
As shown in fig. 3, when the heat exchanger is blocked by sundries, the pressure value detected by the pressure sensor 3 is higher than the pressure value X set by the control unit, and after a period of time Y, the control unit sends out a control signal and an alarm prompt signal, the control signal controls the third electric control valve 12 and the fourth electric control valve 9 to be opened, the first electric control valve 4 and the second electric control valve 5 are closed, and the alarm prompt signal is transmitted to inform a customer that the circulating water outside the heat exchanger is in a reverse flow state. The external circulation water enters the heat exchanger from the external circulation water inlet pipe 2 through the water inlet flushing pipe 7, flows reversely, enters the filter 10 from the heat exchanger, and is discharged to the outside through the water return flushing pipe 8 and the external circulation water outlet pipe 6.
The impurity of the circulating water outside the filter 10 is filtered by the filter screen and stored in the filter 10, the pressure sensor 3 always monitors the water inlet pressure in the back flushing process of the heat exchanger, when the water inlet pressure value is smaller than Z, after a period of time A, the control unit sends out a control signal and an alarm prompt signal, the control signal controls the third electric control valve 12 and the fourth electric control valve 9 to be in a closed state, the first electric control valve 4 and the second electric control valve 5 to be in an open state, and the alarm prompt signal is transmitted to inform a customer that the circulating water outside the heat exchanger is in a forward flowing state. The external circulation water of the heat exchanger flows according to the normal flow direction.
The shell-and-tube type marine heat exchanger with the automatic flushing function has the automatic back flushing function, can automatically flush the heat exchanger under the condition that the work of the heat exchanger is not affected, and can clean sundries without dismantling the heat exchanger, thereby being convenient for customers to use and being more intelligent.
The present utility model is not limited to the above-described embodiments, and all modifications based on the concept, principle, structure and method of the present utility model are within the scope of the present utility model.
Claims (7)
1. The shell-and-tube type marine heat exchanger with the automatic flushing function comprises a heat exchanger main body, wherein the heat exchanger main body comprises a cold medium inlet and a cold medium outlet, and the shell-and-tube type marine heat exchanger is characterized in that:
the cold medium inlet is connected with an external circulation water inlet pipe, the cold medium outlet is connected with an external circulation water outlet pipe, a pressure sensor and a first electric control valve are arranged on the external circulation water inlet pipe, a second electric control valve is arranged on the external circulation water outlet pipe,
a water inlet flushing pipe and a water return flushing pipe are respectively connected between the outer circulation water inlet pipe and the outer circulation water outlet pipe, the joint of the water inlet flushing pipe and the outer circulation water inlet pipe is a first joint, the joint of the water return flushing pipe and the outer circulation water inlet pipe is a second joint, the first joint is positioned at the downstream of the pressure sensor,
the first electrically controlled valve is located between the first connection and the second connection, the second connection being closer to the heat exchanger body than the first connection,
the joint of the water inlet flushing pipe and the outer circulation water outlet pipe is a third joint, the joint of the water return flushing pipe and the outer circulation water outlet pipe is a fourth joint,
the second electrically controlled valve is located between the third junction and the fourth junction, the third junction being closer to the heat exchanger body than the fourth junction;
the water inlet flushing pipe is provided with a third electric control valve, the water return flushing pipe is provided with a fourth electric control valve and a filter, the fourth electric control valve is positioned between the filter and the second joint, and the filter is provided with a sewage outlet.
2. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 1, wherein: the filter comprises an outer shell and a filter element, and the sewage outlet is formed in the outer shell.
3. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 2, wherein: and a drain plug screw is arranged at the drain outlet.
4. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 2, wherein: the outer shell is made of transparent materials.
5. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 1, wherein: the external circulation water inlet pipe is connected with an external circulation water pump.
6. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 1, wherein: the heat exchanger main body further comprises a heat medium inlet and a heat medium outlet, wherein the heat medium inlet is connected with the high-temperature water outlet pipe of the engine, and the heat medium outlet is connected with the low-temperature water inlet pipe of the engine.
7. The shell-and-tube marine heat exchanger with automatic flushing function as set forth in claim 1, wherein: the outer circulation water outlet pipe is provided with an outboard pipe water outlet, and a manual control valve is arranged between the outer circulation water outlet pipe and the outboard pipe water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951055.3U CN219200183U (en) | 2022-11-04 | 2022-11-04 | Shell-and-tube type marine heat exchanger with automatic flushing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951055.3U CN219200183U (en) | 2022-11-04 | 2022-11-04 | Shell-and-tube type marine heat exchanger with automatic flushing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219200183U true CN219200183U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222951055.3U Active CN219200183U (en) | 2022-11-04 | 2022-11-04 | Shell-and-tube type marine heat exchanger with automatic flushing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219200183U (en) |
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2022
- 2022-11-04 CN CN202222951055.3U patent/CN219200183U/en active Active
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