CN214173100U - Online automatic back-flushing device of plate heat exchanger - Google Patents
Online automatic back-flushing device of plate heat exchanger Download PDFInfo
- Publication number
- CN214173100U CN214173100U CN202120160324.7U CN202120160324U CN214173100U CN 214173100 U CN214173100 U CN 214173100U CN 202120160324 U CN202120160324 U CN 202120160324U CN 214173100 U CN214173100 U CN 214173100U
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- China
- Prior art keywords
- heat exchanger
- main
- valve
- cold medium
- plate heat
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- Expired - Fee Related
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 13
- 238000011001 backwashing Methods 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Abstract
The utility model discloses an on-line automatic backwashing device of a plate heat exchanger, which is provided with a plate heat exchanger, a heat exchanger flushing pipeline and a backwashing mechanism, wherein the upper part of the right side wall of the plate heat exchanger is communicated with the end parts of a hot medium inlet main pipeline and a cold medium outlet main pipeline, the lower part of the right side wall of the plate heat exchanger is communicated with the end parts of the cold medium inlet main pipeline and the hot medium outlet main pipeline, the hot medium inlet main pipeline, the cold medium outlet main pipeline, the cold medium inlet main pipeline and the hot medium outlet main pipeline are respectively provided with a control valve, the cold medium outlet main pipeline is connected with a back washing inlet valve and an exhaust valve, the cold medium inlet main pipeline is connected with a back washing outlet valve, the back washing mechanism is provided with a control box, a dosing pump and a back washing pump, and the back washing mechanism is connected with a heat exchanger washing pipeline through a connecting hose. The utility model discloses simple structure, it is easy and simple to handle, realized plate heat exchanger's automatic back flush on line.
Description
Technical Field
The utility model relates to a heat exchanger belt cleaning device technical field, more specifically say, relate to an online automatic back flush device of plate heat exchanger.
Background
In the prior art, a plate heat exchanger is one of common devices in the heating and cooling fields, and as the plate heat exchanger has the characteristics of high heat transfer coefficient, high heat recovery efficiency, compact structure, light weight, small occupied space, easiness in installation and maintenance and the like, the plate heat exchanger is an efficient energy-saving product and is widely applied to the industries of food, metallurgy, petrochemical industry and the like. However, in the use process of the plate heat exchanger, because a large amount of iron rust, scale and the like are generated in an iron pipeline, the heat exchange plates can be scaled, so that the heat exchange effect is reduced, at present, the heat exchanger is usually cleaned by adopting a physical and chemical combined method, the heat exchanger needs to be disassembled and cleaned piece by piece, time and labor are wasted, and the heat exchange effect of the heat exchanger is influenced; and the existing plate heat exchanger can not realize on-line back washing, usually adopts the mode of manual periodic disassembly, cleaning, washing and reinstalling to finish the cleaning work of the plate heat exchanger, wastes time and labor, and is easy to cause the damage of the plate sealing sheet.
Disclosure of Invention
The utility model discloses to the technical problem that prior art medium plate heat exchanger cleaning method exists, provide an online automatic back washing unit of plate heat exchanger.
For solving above-mentioned technical problem, for this reason the utility model discloses be equipped with plate heat exchanger and heat exchanger washpipe way, still be provided with back flush mechanism, the upper portion and the hot medium import trunk line of plate heat exchanger's right side wall, the tip of cold medium export trunk line is linked together, the lower part and the cold medium import trunk line of plate heat exchanger's right side wall, the tip of hot medium export trunk line is linked together, hot medium import trunk line, cold medium export trunk line, all be provided with control flap on cold medium import trunk line and the hot medium export trunk line, be connected with back flush inlet valve and discharge valve on the cold medium export trunk line, be connected with back flush outlet valve on the cold medium import trunk line, back flush mechanism is equipped with the control box, add medicine pump and back flush pump, back flush mechanism is connected with heat exchanger washpipe way through coupling hose.
Preferably, a main hot medium inlet valve is arranged on the main hot medium inlet pipeline, a main cold medium outlet valve is arranged on the main cold medium outlet pipeline, a main cold medium inlet valve is arranged on the main cold medium inlet pipeline, and a main hot medium outlet valve is arranged on the main hot medium outlet pipeline.
Preferably, the exhaust valve is arranged on a cold medium outlet main pipeline between the plate heat exchanger and the cold medium outlet main valve through a connecting pipe, and the backwashing inlet valve is arranged on the cold medium outlet main pipeline between the plate heat exchanger and the cold medium outlet main valve through a connecting pipe; the back washing outlet valve is arranged on a cold medium inlet main pipeline between the plate heat exchanger and the cold medium inlet main valve through a connecting pipe.
Preferably, the main cold medium inlet pipeline is also connected with a dosing valve, and the dosing valve is arranged on the main cold medium inlet pipeline between the plate heat exchanger and the main cold medium inlet valve; a bypass valve is connected between the cold medium inlet main pipeline and the hot medium outlet main pipeline through a connecting pipe.
Preferably, the backwashing mechanism is further provided with a medicine storage tank, the medicine feeding pump is connected with the medicine storage tank, the other end of the medicine feeding pump is connected with a medicine feeding hose, and the other end of the medicine feeding hose is connected with the medicine feeding valve.
Preferably, one end of the backwashing pump is connected with a water inlet hose of the backwashing pump, the other end of the backwashing pump is connected with a water outlet hose of the backwashing pump, the water inlet hose of the backwashing pump is connected with a backwashing outlet valve, and the water outlet hose of the backwashing pump is connected with a backwashing inlet valve.
Preferably, the plate heat exchanger consists of multiple layers of 304 or 316L stainless steel heat exchanger plates.
Compared with the prior art, the utility model discloses possess following beneficial effect:
the utility model discloses simple structure, it is easy and simple to handle, realized plate heat exchanger's online back flush, not only the sanitization but also can effectual protection plate heat exchanger to extension plate heat exchanger's life practices thrift manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of the structure principle of the present invention;
fig. 2 is a schematic structural diagram of the backwashing mechanism of the present invention.
The symbols in the figures indicate:
1. a medicine storage tank; 2. a dosing pump; 3. a backwash pump; 4. a check valve; 5. a control box; 6. a dosing hose; 7. a water outlet hose of the backwash pump; 8. a water inlet hose of a back flush pump; 9. a plate heat exchanger; 10. a main pipe for a heat medium inlet; 11. a main outlet pipeline for the heat medium; 12. a main cold medium inlet pipeline; 13. a main cold medium outlet pipeline; 14. a main valve for the heat medium inlet; 15. a main valve for the outlet of the heat medium; 16. a main valve for a cold medium inlet; 17. a main valve of a cold medium outlet; 18. an exhaust valve; 19. a bypass valve; 20. a dosing valve; 21. back flushing the inlet valve; 22. and back flushing the outlet valve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1 and 2, the utility model provides an online automatic back washing unit of plate heat exchanger, it is equipped with plate heat exchanger 9 and heat exchanger medium circulation pipeline, heat exchanger medium circulation pipeline also is as the heat exchanger washout pipeline simultaneously, heat exchanger medium circulation pipeline includes hot medium inlet main pipeline 10, hot medium outlet main pipeline 11, cold medium inlet main pipeline 12, cold medium outlet main pipeline 13, the upper portion and the hot medium inlet main pipeline 10 of the right side wall of plate heat exchanger 9, the tip of cold medium outlet main pipeline 13 are linked together, the lower part and the cold medium inlet main pipeline 12 of the right side wall of plate heat exchanger 9, the tip of hot medium outlet main pipeline 11 are linked together; and a main hot medium inlet valve 14 is arranged on the main hot medium inlet pipe 10, a main cold medium outlet valve 17 is arranged on the main cold medium outlet pipe 13, a main cold medium inlet valve 16 is arranged on the main cold medium inlet pipe 12, and a main hot medium outlet valve 15 is arranged on the main hot medium outlet pipe 11.
In this embodiment, the main cold medium outlet pipe 13 is connected with an exhaust valve 18 and a backwash inlet valve 21, the exhaust valve 18 is connected to the main cold medium outlet pipe 13 between the plate heat exchanger 9 and the main cold medium outlet valve 17 through a connecting pipe, and the backwash inlet valve 21 is connected to the main cold medium outlet pipe 13 between the plate heat exchanger 9 and the main cold medium outlet valve 17 through a connecting pipe. The main cold medium inlet pipeline 12 is connected with a dosing valve 20 and a back washing outlet valve 22, in the embodiment, the dosing valve 20 is used as a sewage discharge valve at the same time, and is used for not only dosing but also sewage discharge; the dosing valve 20 is connected to a main cold medium inlet pipeline 12 between the plate heat exchanger 9 and the main cold medium inlet valve 16 through a connecting pipe, and the back-washing outlet valve 22 is connected to the main cold medium inlet pipeline 12 between the plate heat exchanger 9 and the main cold medium inlet valve 16 through a connecting pipe.
Furthermore, in the present embodiment, a bypass valve 19 is connected between the main cooling medium inlet pipe 12 and the main heating medium outlet pipe 11 through a connecting pipe.
As shown in fig. 2, in the present embodiment, a back-flushing mechanism is further provided, the back-flushing mechanism is provided with a control box 5, a dosing pump 2 and a back-flushing pump 3, the control box 5 is used for controlling the dosing pump 2 and the back-flushing pump 3 to perform related actions, one end of the dosing pump 2 is connected to the drug storage tank 1, the other end of the dosing pump 2 is connected to a dosing hose 6, a check valve 4 is provided on one side of the dosing hose 6 close to the dosing pump 2, and the other end of the dosing hose 6 is connected to a dosing valve 20; one end of the backwashing pump 3 is connected with a backwashing pump water inlet hose 8, the other end of the backwashing pump 3 is connected with a backwashing pump water outlet hose 7, the other end of the backwashing pump water inlet hose 8 is connected with a backwashing outlet valve 22, and the other end of the backwashing pump water outlet hose 7 is connected with a backwashing inlet valve 21.
Furthermore, in this embodiment, the back washing mechanism and the washing pipe of the plate heat exchanger 9 are movably connected, so that the operation is simple, the carrying and the use are flexible and convenient, the back washing mechanism can be adjusted at any time according to the needs of the use place, and the maneuverability is strong.
Furthermore, in this embodiment, be provided with acid cleaning agent and anticorrosive in medicine storage tank 1, what acid cleaning agent adopted is nitric acid or sulphuric acid etc. and acid cleaning agent not only abluent more thoroughly is clean, forms one deck protective layer through adding the anticorrosive in plate heat exchanger's inboard moreover, can prolong heat exchanger life.
Furthermore, in this embodiment, the plate heat exchanger 9 is composed of a plurality of layers of 304 or 316L stainless steel heat exchanger plates.
The utility model discloses a theory of operation does:
firstly, closing a main cold medium inlet valve 16 and a main cold medium outlet valve 17, opening an exhaust valve 18 and a dosing valve 20, and emptying water in the plate heat exchanger 9, the main cold medium inlet pipeline 12 and the main cold medium outlet pipeline 13; secondly, after the water is drained, the dosing hose 6 is connected with the dosing valve 20, the back washing pump water outlet hose 7 is connected with the back washing inlet valve 21, the back washing pump water inlet hose 8 is connected with the back washing outlet valve 22, the exhaust valve 18 is kept in an open state, and a certain amount of medicament is added into the medicament storage tank 1; then, operating the control box 5, starting the dosing pump 2 to dose, closing the dosing pump 2 when the dosing reaches a certain amount, then opening the bypass valve 19, and enabling hot water in the hot medium outlet main pipeline 11 to enter the plate heat exchanger 9, the cold medium inlet main pipeline 12 and the cold medium outlet main pipeline 13, at the moment, paying attention to observation until hot water overflows from the exhaust valve 18, and proving that the plate heat exchanger 9, the cold medium inlet main pipeline 12 and the cold medium outlet main pipeline 13 are filled with mixed media of hot water and medicament; at this time, the bypass valve 19 is closed, after standing for 1 hour, the backwash pump 3 is started, the backwash pump 3 enters the automatic backwash mode, and the intermittent operation time and the closing end time (which may be set manually in advance) are controlled by the control box 5. After the back flushing process is finished, the connection between the dosing hose 6 and the dosing valve 20 is disconnected, then the dosing valve 20 is opened, and the waste water is discharged, so that the whole back flushing process is finished.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. An on-line automatic back-flushing device of a plate heat exchanger is provided with the plate heat exchanger and a heat exchanger flushing pipeline, it is characterized in that a back washing mechanism is also arranged, the upper part of the right side wall of the plate type heat exchanger is communicated with the end parts of a hot medium inlet main pipeline and a cold medium outlet main pipeline, the lower part of the right side wall of the plate heat exchanger is communicated with the end parts of a cold medium inlet main pipeline and a hot medium outlet main pipeline, control valves are arranged on the main hot medium inlet pipeline, the main cold medium outlet pipeline, the main cold medium inlet pipeline and the main hot medium outlet pipeline, a back washing inlet valve and an exhaust valve are connected on the cold medium outlet main pipeline, a back washing outlet valve is connected on the cold medium inlet main pipeline, the back washing mechanism is provided with a control box, a dosing pump and a back washing pump, and is connected with a heat exchanger washing pipeline through a connecting hose.
2. The on-line automatic backwashing device of the plate heat exchanger according to claim 1, wherein a main hot medium inlet valve is disposed on the main hot medium inlet pipe, a main cold medium outlet valve is disposed on the main cold medium outlet pipe, a main cold medium inlet valve is disposed on the main cold medium inlet pipe, and a main hot medium outlet valve is disposed on the main hot medium outlet pipe.
3. The online automatic backwashing device of the plate heat exchanger according to claim 2, wherein the exhaust valve is arranged on a main cold medium outlet pipe between the plate heat exchanger and the main cold medium outlet valve through a connecting pipe, and the backwashing inlet valve is arranged on the main cold medium outlet pipe between the plate heat exchanger and the main cold medium outlet valve through a connecting pipe; the back washing outlet valve is arranged on a cold medium inlet main pipeline between the plate heat exchanger and the cold medium inlet main valve through a connecting pipe.
4. The online automatic backwashing device of the plate heat exchanger according to claim 3, wherein a chemical adding valve is further connected to the main cold medium inlet pipe, and the chemical adding valve is arranged on the main cold medium inlet pipe between the plate heat exchanger and the main cold medium inlet valve; and a bypass valve is connected between the cold medium inlet main pipeline and the hot medium outlet main pipeline through a connecting pipe.
5. The on-line automatic backwashing device of the plate heat exchanger according to claim 4, wherein the backwashing mechanism is further provided with a medicine storage tank, the medicine feeding pump is connected with the medicine storage tank, the other end of the medicine feeding pump is connected with a medicine feeding hose, and the other end of the medicine feeding hose is connected with the medicine feeding valve.
6. The on-line automatic backwashing device of the plate heat exchanger according to claim 1 or 5, wherein one end of the backwashing pump is connected with a backwashing pump water inlet hose, the other end of the backwashing pump is connected with a backwashing pump water outlet hose, the backwashing pump water inlet hose is connected with the backwashing outlet valve, and the backwashing pump water outlet hose is connected with the backwashing inlet valve.
7. The on-line automatic backwashing device of the plate heat exchanger according to claim 6, wherein the plate heat exchanger is composed of a plurality of layers of 304 or 316L stainless steel heat exchange plate sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120160324.7U CN214173100U (en) | 2021-01-20 | 2021-01-20 | Online automatic back-flushing device of plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120160324.7U CN214173100U (en) | 2021-01-20 | 2021-01-20 | Online automatic back-flushing device of plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214173100U true CN214173100U (en) | 2021-09-10 |
Family
ID=77593738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120160324.7U Expired - Fee Related CN214173100U (en) | 2021-01-20 | 2021-01-20 | Online automatic back-flushing device of plate heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214173100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712927A (en) * | 2022-06-06 | 2022-07-08 | 天津国投津能发电有限公司 | Backwashing filter device and backwashing method for heat exchanger of seawater desalination system |
-
2021
- 2021-01-20 CN CN202120160324.7U patent/CN214173100U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712927A (en) * | 2022-06-06 | 2022-07-08 | 天津国投津能发电有限公司 | Backwashing filter device and backwashing method for heat exchanger of seawater desalination system |
| CN114712927B (en) * | 2022-06-06 | 2023-04-14 | 天津国投津能发电有限公司 | Backwashing filter device and backwashing method for heat exchanger of seawater desalination system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210910 |