CN211953807U - Phosphating solution heating cycle device - Google Patents
Phosphating solution heating cycle device Download PDFInfo
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- CN211953807U CN211953807U CN202020280375.9U CN202020280375U CN211953807U CN 211953807 U CN211953807 U CN 211953807U CN 202020280375 U CN202020280375 U CN 202020280375U CN 211953807 U CN211953807 U CN 211953807U
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Abstract
The utility model provides a phosphating solution heating cycle device, wherein go into the heat exchanger pipe and include: three-way flow divider, water pump, it includes to go out the heat exchanger tubular: the phosphating solution outlet pipe of the first regulating valve is provided with a first temperature sensor; a second temperature sensor is arranged between the water pump and the phosphating solution heat exchanger; further comprising: a first pipeline and a second pipeline; the first pipeline is communicated with a pipeline of the first regulating valve inlet and a pipeline of the water pump inlet, a check valve and a second regulating valve are arranged on the first pipeline, and the check valve limits liquid to flow from the heat outlet exchanger pipe to the heat inlet exchanger pipe only; one end of the second pipeline is connected with the second outlet end of the three-way flow divider, and the other end of the second pipeline is communicated with the pipeline of the outlet of the first regulating valve. The utility model provides a pair of phosphating solution heating cycle device can rapid heating up in the intensification stage, and is more energy-conserving in the heat preservation stage.
Description
Technical Field
The utility model relates to an automobile application pretreatment technical field, in particular to phosphating solution heating cycle device.
Background
In order to save energy, the phosphating temperature of the automobile coating pretreatment process gradually tends to be low. Steam and high-temperature hot water are the most commonly used heat sources because of their convenience and safety, but even the lowest temperature is generally 85 ℃, while the temperature of the phosphating process is low, and heating phosphating with 85 ℃ hot water causes phosphated slag to form much faster. At present, heating and phosphorization in China all utilize secondary heat exchange, namely, a heat source is reduced to 65-70 ℃ to reach the process temperature of phosphorization liquid, and the mode has large occupied area, high manufacturing cost and energy waste.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem, the utility model provides a phosphating solution heating cycle device, it is more energy-conserving with prior art comparison, specifically include:
a phosphating solution heat exchanger, a heat exchanger inlet pipe, a heat exchanger outlet pipe, a phosphating solution inlet pipe and a phosphating solution outlet pipe,
the heat exchanger inlet tube comprises:
the inlet end of the three-way flow divider is connected with a hot water inlet through a pipeline;
the inlet end of the water pump is connected with the first outlet end of the three-way flow divider valve through a pipeline, and the outlet end of the water pump is connected with the phosphating solution heat exchanger through a pipeline;
the heat outlet exchanger tube comprises:
the inlet of the first regulating valve is connected with the phosphating solution heat exchanger through a pipeline, and the outlet of the first regulating valve is connected with a hot water return port through a pipeline;
the phosphating solution outlet pipe is provided with a first temperature sensor;
a second temperature sensor is arranged between the water pump and the phosphating solution heat exchanger;
further comprising: a first pipeline and a second pipeline;
the first pipeline is communicated with a pipeline of the first regulating valve inlet and a pipeline of the water pump inlet, a check valve and a second regulating valve are arranged on the first pipeline, and the check valve limits liquid to flow from the heat outlet exchanger pipe to the heat inlet exchanger pipe only;
one end of the second pipeline is connected with the second outlet end of the three-way flow divider, and the other end of the second pipeline is communicated with the pipeline of the outlet of the first regulating valve.
Furthermore, a third regulating valve is arranged at one end of the heat exchanger inlet pipe connected with the hot water inlet; and a fourth regulating valve is arranged at one end of the heat outlet exchanger pipe connected with the hot water return port.
Furthermore, a fifth regulating valve is arranged in the second pipeline.
Furthermore, a sixth regulating valve is arranged at the first outlet end of the three-way flow dividing valve.
Further, a seventh regulating valve is arranged between the water pump and the phosphating solution heat exchanger.
Further, the phosphating solution heat exchanger is a plate heat exchanger.
Further, the regulating valve is a butterfly valve.
The utility model provides a pair of phosphating solution heating cycle device can rapid heating up in the intensification stage, and is more energy-conserving in the heat preservation stage.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a phosphating solution heating and circulating device.
Description of reference numerals: 1. a first regulating valve; 2. a second regulating valve; 3. a third regulating valve; 4. a fourth regulating valve; 5. a fifth regulating valve; 6. a sixth regulating valve; 7. a seventh regulating valve; 8. a phosphating solution heat exchanger; 9. entering a heat exchanger tube; 10. an outlet heat exchanger tube; 11. a phosphating solution inlet pipe; 12. a phosphating solution outlet pipe; 13. a three-way flow divider; 14. a hot water inlet; 15. a water pump; 16. a hot water return port; 17. a first temperature sensor; 18. a second temperature sensor; 19. a first pipeline; 20. a second pipeline; 21. a check valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The existing phosphating solution heating circulation device comprises a phosphating solution heat exchanger 8, an inlet heat exchanger pipe 9, an outlet heat exchanger pipe 10, a phosphating solution inlet pipe 11 and a phosphating solution outlet pipe 12, wherein the inlet heat exchanger pipe 9 is used for guiding hot water of a hot water inlet 14 into the phosphating solution heat exchanger 8, and the outlet heat exchanger pipe 10 is used for guiding the hot water of the phosphating solution heat exchanger 8 out to a hot water return port 16.
The heating and circulating device for phosphating solution provided by the embodiment is changed as shown in figure 1,
the heat exchanger inlet tube 9 comprises:
the inlet end of the three-way diverter valve 13 is connected with a hot water inlet 14 through a pipeline,
a three-way diverter valve is described herein in one step. The three-way valve is divided into a flow-merging valve and a flow-dividing valve according to the action mode of fluid. The confluence valve has two inlets, and flows out from one outlet after confluence. The diverter valve has a fluid inlet and is diverted to flow out of the two fluid outlets. By adjusting the valve element, fluid can be made to flow out from only one outlet, or from different outlets in a certain proportion. Here, the three-way flow divider 13 is a flow divider of a three-way valve, as shown in fig. 1, where i is an inlet end thereof, ii is a first outlet end thereof, and iii is a second outlet end thereof.
The inlet end of the water pump 15 is connected with the first outlet end of the three-way diverter valve 13 through a pipeline, and the outlet end of the water pump 15 is connected with the phosphating solution heat exchanger 8 through a pipeline;
the heat outlet exchanger tube 10 includes:
the inlet of the first regulating valve 1 is connected with the phosphating solution heat exchanger 8 through a pipeline, and the outlet of the first regulating valve 1 is connected with a hot water return port 16 through a pipeline;
the phosphating solution outlet pipe 12 is provided with a first temperature sensor 17;
a second temperature sensor 18 is arranged between the water pump 15 and the phosphating solution heat exchanger 8;
further comprising: a first line 19, a second line 20;
the first pipeline 19 is communicated with the pipeline of the inlet of the first regulating valve 1 and the pipeline of the inlet of the water pump 15, a check valve 21 and a second regulating valve 2 are arranged on the first pipeline 19, and the check valve 21 limits the liquid to flow from the heat outlet exchanger pipe 10 to the heat inlet exchanger pipe 9;
one end of the second pipeline 20 is connected with the second outlet end of the three-way diverter valve, and the other end is communicated with the pipeline of the outlet of the first regulating valve.
The working principle of the technical scheme is as follows:
a primary temperature rise stage: at this time, the inlet end of the three-way diverter valve 13 is communicated with the first outlet end only, the first regulating valve 1 is opened, and the second regulating valve 2 is closed. Then the hot water flowing out from the hot water inlet 14 flows into the phosphating solution heat exchanger 8 through the heat inlet pipe 9 and then flows out to the hot water return port 16 through the heat outlet pipe 10.
And (3) a heat preservation stage: i.e. when the hot water or phosphating solution reaches the working temperature. When the temperature reaches a set value, namely the first temperature sensor 17 reaches a set temperature of 40 ℃ or the second temperature sensor 18 reaches a set temperature of 70 ℃, adjusting the three-way diverter valve 13 to ensure that hot water mainly flows out from the second outlet end of the three-way diverter valve 13 and a small amount of hot water flows out from the first outlet; and (3) regulating the hot water flow of the first regulating valve, and opening the second regulating valve 2 to ensure that the hot water flowing out of the phosphating solution heat exchanger 8 mainly flows back to the water pump 15 through the first pipeline 19, and a small amount of the hot water flows back to the hot water return opening 16 through the first regulating valve 1.
At the moment, two cycles are mainly formed in the phosphating solution heating circulating device:
a first cycle: hot water flowing out of the hot water inlet 14 passes through the three-way diverter valve 13 and then mainly flows back to the hot water return port 16 through the second pipeline 20.
And a second circulation: the hot water in the heat exchanger tube 9 circulates in a loop formed by the phosphating solution heat exchanger 8, the heat exchanger outlet tube 10 and the first pipeline 19.
A small amount of hot water from the first cycle will flow through the first outlet port of the three-way diverter valve 13 into the second cycle. A small amount of hot water of the second cycle flows into the second cycle through the first regulating valve 1.
In the heat preservation stage, only a small amount of hot water is needed to play a heating role through the second circulation, and the redundant hot water has little heat loss in the second circulation process, so that the energy is saved.
The beneficial effects of the above technical scheme are: the temperature can be rapidly raised in the temperature raising stage, and more energy is saved in the temperature preservation stage.
In one embodiment of the present invention,
a third regulating valve 3 is arranged at one end of the heat inlet pipe 9 connected with the hot water inlet 14;
and a fourth regulating valve 4 is arranged at one end of the heat outlet exchanger pipe connected with the hot water return port.
The on-off of water supply to the whole phosphating solution heating and circulating device is conveniently controlled by arranging the third regulating valve 3, and the on-off of water outlet of the whole phosphating solution heating and circulating device can be conveniently controlled by arranging the fourth regulating valve 4.
In one embodiment, a fifth regulating valve 5 is arranged in the second line.
The second pipeline is conveniently blocked completely in the temperature rising process.
In one embodiment of the present invention,
and a sixth regulating valve is arranged at the first outlet end of the three-way flow divider.
And a seventh regulating valve is arranged between the water pump and the phosphating solution heat exchanger.
The two positions are additionally provided with the regulating valves, so that the on-off of the corresponding pipelines can be conveniently controlled under necessary conditions such as maintenance and the like.
In one embodiment, the phosphating solution heat exchanger 8 is a plate heat exchanger.
The heat transfer coefficient of the plate heat exchanger is high.
In one embodiment, the regulating valve is a butterfly valve.
The butterfly valve can better control the on-off of the pipeline or the liquid circulation.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A phosphating solution heating circulation device comprises a phosphating solution heat exchanger, a heat exchanger inlet pipe, a heat exchanger outlet pipe, a phosphating solution inlet pipe and a phosphating solution outlet pipe, and is characterized in that,
the heat exchanger inlet tube comprises:
the inlet end of the three-way flow divider is connected with a hot water inlet through a pipeline;
the inlet end of the water pump is connected with the first outlet end of the three-way flow divider valve through a pipeline, and the outlet end of the water pump is connected with the phosphating solution heat exchanger through a pipeline;
the heat outlet exchanger tube comprises:
the inlet of the first regulating valve is connected with the phosphating solution heat exchanger through a pipeline, and the outlet of the first regulating valve is connected with a hot water return port through a pipeline;
the phosphating solution outlet pipe is provided with a first temperature sensor;
a second temperature sensor is arranged between the water pump and the phosphating solution heat exchanger;
further comprising: a first pipeline and a second pipeline;
the first pipeline is communicated with a pipeline of the first regulating valve inlet and a pipeline of the water pump inlet, a check valve and a second regulating valve are arranged on the first pipeline, and the check valve limits liquid to flow from the heat outlet exchanger pipe to the heat inlet exchanger pipe only;
one end of the second pipeline is connected with the second outlet end of the three-way flow divider, and the other end of the second pipeline is communicated with the pipeline of the outlet of the first regulating valve.
2. The heating and circulating device of phosphating solution according to claim 1, wherein the device comprises a heating pipe,
a third regulating valve is arranged at one end of the heat inlet pipe connected with the hot water inlet;
and a fourth regulating valve is arranged at one end of the heat outlet exchanger pipe connected with the hot water return port.
3. The heating and circulating device of phosphating solution according to claim 1, wherein the device comprises a heating pipe,
and a fifth regulating valve is arranged in the second pipeline.
4. The heating and circulating device of phosphating solution according to claim 1, wherein the device comprises a heating pipe,
and a sixth regulating valve is arranged at the first outlet end of the three-way flow divider.
5. The heating and circulating device of phosphating solution according to claim 1, wherein the device comprises a heating pipe,
and a seventh regulating valve is arranged between the water pump and the phosphating solution heat exchanger.
6. The heating and circulating device of phosphating solution according to claim 1, wherein the device comprises a heating pipe,
the phosphating solution heat exchanger is a plate heat exchanger.
7. The heating and circulating device of phosphating solution according to claim 1, wherein the phosphating solution is heated and circulated,
the first regulating valve and the second regulating valve are butterfly valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280375.9U CN211953807U (en) | 2020-03-09 | 2020-03-09 | Phosphating solution heating cycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280375.9U CN211953807U (en) | 2020-03-09 | 2020-03-09 | Phosphating solution heating cycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211953807U true CN211953807U (en) | 2020-11-17 |
Family
ID=73194426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020280375.9U Active CN211953807U (en) | 2020-03-09 | 2020-03-09 | Phosphating solution heating cycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211953807U (en) |
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2020
- 2020-03-09 CN CN202020280375.9U patent/CN211953807U/en active Active
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