CN216049421U - Pressurization back-flushing device of heat exchanger - Google Patents
Pressurization back-flushing device of heat exchanger Download PDFInfo
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- CN216049421U CN216049421U CN202121646019.5U CN202121646019U CN216049421U CN 216049421 U CN216049421 U CN 216049421U CN 202121646019 U CN202121646019 U CN 202121646019U CN 216049421 U CN216049421 U CN 216049421U
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Abstract
The utility model discloses a pressurized back washing device of a heat exchanger, which comprises the heat exchanger, a main pipeline and a washing pipeline, wherein the heat exchanger is arranged on the main pipeline, the washing pipeline is connected to the main pipeline, the inlet end of the washing pipeline is close to the inlet end of the heat exchanger, and the outlet end of the washing pipeline is close to the outlet end of the heat exchanger. According to the utility model, the flushing medium in the flushing pipeline enters the heat exchanger from the outlet of the heat exchanger and is flushed reversely, so that the flushing effect is greatly improved, the flushing is convenient and fast, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to a pressure backwashing device for a heat exchanger, and belongs to the technical field of cleaning of heat exchangers.
Background
Plate heat exchanger is used for steam turbine lubricating oil cooling and the cooling of auxiliary system working solution of thermal power factory, and the configuration in pairs, one operation another is reserve in the normal operating, and its cooling water source is got from the circulating water, and heat exchanger work efficiency receives length and quality of water dual influence when using, and circulating water quality of water is unstable, easily causes plate heat exchanger scale deposit, pollutes the jam, reduces heat exchange efficiency, need keep apart when unsatisfying the cooling requirement and dismantle the back clearance, increases the maintenance work load.
Plate heat exchanger single is disassembled and is washd maintenance work load big, it is high with the installation technological requirement to overhaul to dismantle, disassemble many times and easily cause the sealed face of slab to warp the damage, increase the leakage risk during the operation, shorten heat exchanger life, maintenance time long-term causes plate heat exchanger to lose the reserve time extension, if operation plate heat exchanger takes place heat exchange efficiency simultaneously and reduces, turbine lubricating oil and auxiliary system working solution can not get the cooling, easily cause equipment damage and thermal power unit fault shutdown.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure backwashing device for a heat exchanger.
In order to solve the technical problems, the utility model adopts the following technical scheme: a pressure backwashing device for a heat exchanger comprises the heat exchanger, a main pipeline and a washing pipeline, wherein the heat exchanger is arranged on the main pipeline, the washing pipeline is connected to the main pipeline, the inlet end of the washing pipeline is close to the inlet end of the heat exchanger, and the outlet end of the washing pipeline is close to the outlet end of the heat exchanger.
According to the pressurization backwashing device for the heat exchanger, the main pipeline is provided with the stop valve A and the stop valve B, the stop valve A is arranged on the pipe section between the inlet end of the flushing pipeline and the inlet end of the heat exchanger, and the outlet end of the flushing pipeline is arranged on the pipe section between the outlet end of the heat exchanger and the stop valve B.
According to the pressurization backwashing device for the heat exchanger, the cleaning liquid outflow pipeline is arranged on the pipe section between the stop valve A and the outlet end of the heat exchanger, and the check valve is arranged on the cleaning liquid outflow pipeline.
According to the pressurization backwashing device for the heat exchanger, the flushing pipeline is provided with the stop valve C and the stop valve D, the stop valve C is close to the inlet end of the flushing pipeline, and the stop valve D is close to the outlet end of the flushing pipeline.
According to the pressurization back-washing device of the heat exchanger, the liquid booster pump is arranged on the pipe section between the stop valve C and the stop valve D, the pipeline mixer is arranged on the pipe section between the liquid booster pump and the stop valve C, and the pressure gauge is arranged on the pipe section between the liquid booster pump and the stop valve D.
The pressurized backwashing device of the heat exchanger further comprises a scale remover adding pipeline, wherein the scale remover adding pipeline is connected to a pipe section between the stop valve C and the pipeline mixer; the descaling agent adds the pipeline and for can dismantling the connection, when needs improve the washing effect, the installation descaling agent adds the pipeline, adds the descaling agent and washes, improves heat exchanger efficiency, and convenient maintenance.
In the pressurized backwashing device for the heat exchanger, the descaling agent adding pipeline is provided with the liquid reservoir and the stop valve E, the liquid reservoir is arranged at the inlet end of the descaling agent adding pipeline, and the stop valve E is close to the pipeline mixer; the liquid reservoir stores liquid added with the descaling agent, and the descaling agent can be selectively added into different types according to the scaling degree of the heat exchanger.
In the pressurized backwashing device for the heat exchanger, a power device is arranged on a pipe section between the liquid reservoir and the E stop valve; the power device can be a manual power device or a remote control power device, and can be selected according to actual needs.
According to the pressurization backwashing device for the heat exchanger, the cleaning liquid outflow pipeline is further provided with the F stop valve, and the F stop valve is arranged at one end of the pipeline section which is far away from the A stop valve and the inlet end of the heat exchanger.
In the pressurized back-flushing device for the heat exchanger, the pipeline mixer is a static spiral-plate mixer.
Compared with the prior art, the utility model has the advantages that:
1. according to the utility model, the flushing pipeline and the scale remover adding pipeline are arranged, and a flushing medium in the flushing pipeline enters the heat exchanger from the outlet of the heat exchanger and is reversely flushed, so that the flushing effect is greatly improved, the flushing is convenient and fast, and the maintenance cost is reduced;
2. according to the utility model, the liquid booster pump is arranged in the flushing pipeline to improve the pressure of the flushing medium and improve the flushing effect;
3. the descaling agent adding pipeline can selectively add different descaling agents according to the scaling degree of the heat exchanger, so that the descaling agent adding pipeline is convenient and efficient and has strong applicability;
4. the pipeline mixer is arranged in the flushing pipeline, so that the flushing medium and the descaling agent are fully mixed, and the heat exchanger is flushed more thoroughly.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Reference numerals: 1-heat exchanger, 2-main pipeline, 3-flushing pipeline, 4-A stop valve, 5-B stop valve, 6-cleaning liquid outflow pipeline, 7-check valve, 8-C stop valve, 9-D stop valve, 10-liquid booster pump, 11-pipeline mixer, 12-pressure gauge, 13-scale remover adding pipeline, 14-liquid storage device, 15-E stop valve, 16-power device and 17-F stop valve.
The utility model is further described with reference to the following figures and detailed description.
Detailed Description
Example 1 of the utility model: the utility model provides a heat exchanger pressurization back flush system, includes heat exchanger 1, trunk line 2 and wash pipeline 3, on trunk line 2 was arranged in to heat exchanger 1, wash pipeline 3 and connect on trunk line 2, the entrance point that washes pipeline 3 is close to heat exchanger 1, and the exit end that washes pipeline 3 is close to heat exchanger 1's exit end.
Example 2 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; a stop valve A4 and a stop valve B5 are arranged on the main pipeline 2, the stop valve A4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the stop valve B5.
Example 3 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; and a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the A stop valve 4 and the inlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6.
Example 4 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the inlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; flushing pipe 3 is last to be provided with C stop valve 8 and D stop valve 9, C stop valve 8 is close to flushing pipe 3's entrance point, D stop valve 9 is close to flushing pipe 3's exit end.
Example 5 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9.
Example 6 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9; the descaling agent adding pipeline 13 is further included, and the descaling agent adding pipeline 13 is connected to a pipeline section between the C stop valve 8 and the pipeline mixer 11; the descaling agent adding pipeline 13 is detachably connected, when the flushing effect needs to be improved, the descaling agent adding pipeline is installed and added with the descaling agent for flushing, so that the efficiency of the heat exchanger is improved, and the maintenance is convenient.
Example 7 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9; the descaling agent adding pipeline 13 is further included, and the descaling agent adding pipeline 13 is connected to a pipeline section between the C stop valve 8 and the pipeline mixer 11; the descaling agent adding pipeline 13 is detachably connected, when the flushing effect needs to be improved, the descaling agent adding pipeline is installed and added for flushing, so that the efficiency of the heat exchanger is improved, and the maintenance is convenient; the descaling agent adding pipeline 13 is provided with a liquid storage device 14 and an E stop valve 15, the liquid storage device 14 is arranged at the inlet end of the descaling agent adding pipeline 13, and the E stop valve 15 is close to the pipeline mixer 11; the liquid reservoir 14 stores liquid added with a descaling agent, and the descaling agent can be selectively added into different types according to the scaling degree of the heat exchanger.
Example 8 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9; the descaling agent adding pipeline 13 is further included, and the descaling agent adding pipeline 13 is connected to a pipeline section between the C stop valve 8 and the pipeline mixer 11; the descaling agent adding pipeline 13 is detachably connected, when the flushing effect needs to be improved, the descaling agent adding pipeline is installed and added for flushing, so that the efficiency of the heat exchanger is improved, and the maintenance is convenient; the descaling agent adding pipeline 13 is provided with a liquid storage device 14 and an E stop valve 15, the liquid storage device 14 is arranged at the inlet end of the descaling agent adding pipeline 13, and the E stop valve 15 is close to the pipeline mixer 11; the liquid reservoir 14 stores liquid added with the descaling agent, and the descaling agent can be selectively added into different types according to the scaling degree of the heat exchanger; a power device 16 is arranged on a pipe section between the liquid storage device 14 and the E stop valve 15; the power device 16 can be a manual power device or a remote control power device, and can be selected according to actual needs.
Example 9 of the utility model: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9; the descaling agent adding pipeline 13 is further included, and the descaling agent adding pipeline 13 is connected to a pipeline section between the C stop valve 8 and the pipeline mixer 11; the descaling agent adding pipeline 13 is detachably connected, when the flushing effect needs to be improved, the descaling agent adding pipeline is installed and added for flushing, so that the efficiency of the heat exchanger is improved, and the maintenance is convenient; the descaling agent adding pipeline 13 is provided with a liquid storage device 14 and an E stop valve 15, the liquid storage device 14 is arranged at the inlet end of the descaling agent adding pipeline 13, and the E stop valve 15 is close to the pipeline mixer 11; the liquid reservoir 14 stores liquid added with the descaling agent, and the descaling agent can be selectively added into different types according to the scaling degree of the heat exchanger; a power device 16 is arranged on a pipe section between the liquid storage device 14 and the E stop valve 15; the power device 16 can be a manual power device or a remote control power device, and can be selected according to actual needs; an F stop valve 17 is further arranged on the cleaning liquid outflow pipeline 6, and the F stop valve 17 is arranged at one end of the pipeline section which is far away from the A stop valve 4 and the inlet end of the heat exchanger 1.
Example 10 of the present invention: a pressure backwashing device of a heat exchanger comprises a heat exchanger 1, a main pipeline 2 and a flushing pipeline 3, wherein the heat exchanger 1 is arranged on the main pipeline 2, the flushing pipeline 3 is connected on the main pipeline 2, the inlet end of the flushing pipeline 3 is close to the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is close to the outlet end of the heat exchanger 1; the main pipeline 2 is provided with an A stop valve 4 and a B stop valve 5, the A stop valve 4 is arranged on a pipe section between the inlet end of the flushing pipeline 3 and the inlet end of the heat exchanger 1, and the outlet end of the flushing pipeline 3 is arranged on a pipe section between the outlet end of the heat exchanger 1 and the B stop valve 5; a cleaning liquid outflow pipeline 6 is arranged on a pipe section between the stop valve A4 and the outlet end of the heat exchanger 1, and a check valve 7 is arranged on the cleaning liquid outflow pipeline 6; a C stop valve 8 and a D stop valve 9 are arranged on the flushing pipeline 3, the C stop valve 8 is close to the inlet end of the flushing pipeline 3, and the D stop valve 9 is close to the outlet end of the flushing pipeline 3; a liquid booster pump 10 is arranged on a pipe section between the C stop valve 8 and the D stop valve 9, a pipe mixer 11 is arranged on a pipe section between the liquid booster pump 10 and the C stop valve 8, and a pressure gauge 12 is arranged on a pipe section between the liquid booster pump 10 and the D stop valve 9; the descaling agent adding pipeline 13 is further included, and the descaling agent adding pipeline 13 is connected to a pipeline section between the C stop valve 8 and the pipeline mixer 11; the descaling agent adding pipeline 13 is detachably connected, when the flushing effect needs to be improved, the descaling agent adding pipeline is installed and added for flushing, so that the efficiency of the heat exchanger is improved, and the maintenance is convenient; the descaling agent adding pipeline 13 is provided with a liquid storage device 14 and an E stop valve 15, the liquid storage device 14 is arranged at the inlet end of the descaling agent adding pipeline 13, and the E stop valve 15 is close to the pipeline mixer 11; the liquid reservoir 14 stores liquid added with the descaling agent, and the descaling agent can be selectively added into different types according to the scaling degree of the heat exchanger; a power device 16 is arranged on a pipe section between the liquid storage device 14 and the E stop valve 15; the power device 16 can be a manual power device or a remote control power device, and can be selected according to actual needs; an F stop valve 17 is further arranged on the cleaning liquid outflow pipeline 6, and the F stop valve 17 is arranged at one end of a pipeline section which is far away from the A stop valve 4 and the inlet end of the heat exchanger 1; the line mixer 11 is a static helical blade mixer.
The working principle of one embodiment of the utility model is as follows: when the normal flushing work is carried out, the stop valve A4 and the stop valve B5 are closed, the stop valve C8 is opened, flushing liquid in the main pipeline 2 enters the flushing pipeline 3, the liquid booster pump 10 boosts the pressure in the flushing pipeline 3, the pressure gauge 12 monitors the pressure in the flushing pipeline 3 in real time, the stop valve D9 and the stop valve F17 are opened simultaneously, the boosted flushing liquid enters the heat exchanger 1 from the outlet end of the heat exchanger 1 through the main pipeline 2, the heat exchanger 1 is flushed, the flushing liquid enters the main pipeline 2 through the inlet end of the heat exchanger 1, the flushing liquid in the main pipeline 2 enters the cleaning liquid outflow pipeline 6 and then is discharged, after the flushing is finished, the liquid booster pump 10 is stopped, the stop valve D9 and the stop valve F17 are closed, and the flushing liquid is prevented from flowing back; when the flushing effect needs to be improved, the A stop valve 4, the B stop valve 5 and the C stop valve 8 are closed, the descaling agent adding pipeline 13 is installed on a pipeline section between the C stop valve 8 and the pipeline mixer 11, the C stop valve 8 is opened, flushing liquid in the main pipeline 2 enters the flushing pipeline 3, the E stop valve 15 is opened, the power device 16 enables liquid stored in the liquid storage device 14 and added with the descaling agent to enter the flushing pipeline 3 through the descaling agent adding pipeline 13, the pipeline mixer 11 enables the liquid added with the descaling agent and the flushing liquid to be fully mixed, the liquid booster pump 10 boosts the pressure in the flushing pipeline 3, the pressure gauge 12 monitors the pressure in the flushing pipeline 3 in real time, the D stop valve 9 is opened simultaneously, the boosted and mixed flushing liquid enters the heat exchanger 1 from the outlet end of the heat exchanger 1 through the main pipeline 2 and flushes the heat exchanger 1, flushing liquid enters the main pipeline 2 through the outlet end of the heat exchanger 1, and the flushing liquid in the main pipeline 2 enters the cleaning liquid outflow pipeline 6 and then is discharged; after finishing washing, stop liquid booster pump 10, close C stop valve 8, D stop valve 9 and F stop valve 17, prevent the flush fluid backward flow, dismantle the detergent as required and add pipeline 13.
Claims (8)
1. A heat exchanger pressurization back-flushing device comprises a heat exchanger (1), a main pipeline (2) and a flushing pipeline (3), and is characterized in that the heat exchanger (1) is arranged on the main pipeline (2), the flushing pipeline (3) is connected on the main pipeline (2), the inlet end of the flushing pipeline (3) is close to the inlet end of the heat exchanger (1), the outlet end of the flushing pipeline (3) is close to the outlet end of the heat exchanger (1), a C stop valve (8) and a D stop valve (9) are arranged on the flushing pipeline (3), the C stop valve (8) is close to the inlet end of the flushing pipeline (3), the D stop valve (9) is close to the outlet end of the flushing pipeline (3), a liquid booster pump (10) is arranged on a pipeline section between the C stop valve (8) and the D stop valve (9), a pipeline mixer (11) is arranged on a pipeline section between the liquid booster pump (10) and the C stop valve (8), a pressure gauge (12) is arranged on the pipe section between the liquid booster pump (10) and the D stop valve (9).
2. A pressure backwash device for a heat exchanger according to claim 1, characterized in that the main pipe (2) is provided with a stop valve a (4) and a stop valve B (5), the stop valve a (4) being arranged in the section between the inlet end of the flushing pipe (3) and the inlet end of the heat exchanger (1), and the outlet end of the flushing pipe (3) being arranged in the section between the outlet end of the heat exchanger (1) and the stop valve B (5).
3. The pressure backwashing device of the heat exchanger as claimed in claim 2, wherein a cleaning liquid outflow pipeline (6) is arranged on a pipe section between the A stop valve (4) and the inlet end of the heat exchanger (1), and a check valve (7) is arranged on the cleaning liquid outflow pipeline (6).
4. A pressure backflush unit of a heat exchanger according to claim 1, characterised in that it further comprises a descaling agent addition line (13), the descaling agent addition line (13) being connected to the pipe section between the C shut-off valve (8) and the pipe mixer (11).
5. The pressure backwashing device of the heat exchanger as claimed in claim 4, wherein the detergent addition pipe (13) is provided with a reservoir (14) and an E stop valve (15), the reservoir (14) is disposed at an inlet end of the detergent addition pipe (13), and the E stop valve (15) is close to the pipe mixer (11).
6. A pressure backwash device for a heat exchanger according to claim 5, characterized in that a power unit (16) is arranged in the section between the reservoir (14) and the E stop valve (15).
7. A pressure backwash device for a heat exchanger as claimed in claim 3, characterized in that the cleaning liquid outflow conduit (6) is further provided with an F-stop valve (17), the F-stop valve (17) being disposed at an end of the conduit section remote from the section between the a-stop valve (4) and the inlet end of the heat exchanger (1).
8. A heat exchanger pressure backwash device according to claim 1, characterized in that the line mixer (11) is a static spiral-blade mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646019.5U CN216049421U (en) | 2021-07-19 | 2021-07-19 | Pressurization back-flushing device of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646019.5U CN216049421U (en) | 2021-07-19 | 2021-07-19 | Pressurization back-flushing device of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216049421U true CN216049421U (en) | 2022-03-15 |
Family
ID=80617265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121646019.5U Active CN216049421U (en) | 2021-07-19 | 2021-07-19 | Pressurization back-flushing device of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216049421U (en) |
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2021
- 2021-07-19 CN CN202121646019.5U patent/CN216049421U/en active Active
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