Cooling water recycling device of diesel engine system
The multi-stage filtration design of the diesel engine system cooling water recycling device solves the problem of excessive iron content in the cooling water, enabling rapid and convenient filtration replacement, saving costs and maintaining system availability.
Patent Information
- Application Number
- CN202520226558.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Excessive iron content in the cooling water of diesel engine systems leads to reduced performance and pipe corrosion. Current technology requires draining and flushing the system during maintenance, which is labor-intensive, time-consuming, and costly, and also carries the risk of reduced cooling performance.
A diesel engine system cooling water recycling device was designed, comprising a water tank, a water pump, a coarse filter, and a fine filter. It achieves online and offline filtration through multi-stage filtration and isolation valves, reduces the iron content in the cooling water, and supports rapid filter replacement.
It enables rapid and convenient cooling water filtration and replacement, reduces iron content, saves manpower, time and cost, does not affect the availability of the diesel engine system, and improves filtration efficiency.
Smart Images
Figure CN223594270U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to diesel engine overhauling technical field especially relates to a diesel engine system cooling water recycling device. BACKGROUND
[0002] The diesel engine system cooling water is used for cooling each heating part during the diesel engine system operation, carries away heat, thereby ensuring the reliable and stable operation of the diesel engine.
[0003] Since the diesel engine system cooling water pipeline is all carbon steel material, the inside is easy to rust and produce free state rust or iron ion, the iron enters the cooling water and cannot be discharged, once the iron content in the cooling water is too high, the performance of the cooling water will be reduced, and the corrosion of the inner wall of the pipeline is accelerated.
[0004] At present, the conventional solution method can only replace the pipeline by flushing after emptying the cooling water system during the diesel engine overhaul. Since the cooling water system needs to be emptied, the diesel engine cannot be used, so the method can only be implemented in the diesel engine overhaul state, and has great consumption of manpower, time and financial resources, and there is a risk of gas entering the water system during the system water charging process, which causes the cooling performance to decrease. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a diesel engine system cooling water recycling device, which solves the problem that the diesel engine cooling water cannot be reused after being put into operation.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:
[0007] A diesel engine system cooling water recycling device, comprising a water tank, a water pump, a coarse filter and a fine filter, the water tank and the water pump are connected through a first pipeline, the water pump and the coarse filter are connected through a second pipeline, the coarse filter and the fine filter are connected through a third pipeline, and the fine filter and the water tank are connected through a fourth pipeline; a fourth isolation valve and a fifth isolation valve are arranged on the fourth pipeline, a fifth pipeline is arranged between the fourth isolation valve and the fifth isolation valve, the fifth pipeline is connected to a diesel engine system, the diesel engine system is connected with a diesel engine system expansion tank, and the diesel engine system expansion tank is connected with the water tank through a sixth pipeline.
[0008] In some embodiments, a liquid level meter is arranged on the diesel engine system expansion tank.
[0009] In some embodiments, a discharge valve is arranged on the sixth pipeline.
[0010] In some embodiments, a first isolation valve is arranged on the first pipeline.
[0011] In some embodiments, a check valve and a second isolation valve are arranged on the second pipeline.
[0012] In some embodiments, the check valve is arranged at an outlet of the water pump, and the second isolation valve is arranged downstream of the check valve.
[0013] In some embodiments, a third isolation valve is arranged on the third pipeline.
[0014] In some embodiments, the water pump is a centrifugal water pump.
[0015] In some embodiments, the coarse filter is a stainless steel filter screen structure with a filtering accuracy of 100 microns.
[0016] In some embodiments, the fine filter is a magnetic adsorption filter core with a filtering accuracy of 10 microns.
[0017] Compared with the prior art, the diesel engine system cooling water recycling device has the following beneficial effects:
[0018] The diesel engine cooling water can be quickly and conveniently filtered and replaced online and offline, the iron content in the cooling water is rapidly reduced, manpower, time and cost are greatly saved, and the usability of the diesel engine system is not affected.
[0019] In addition, the diesel engine system cooling water recycling device supports online / offline dual-mode switching and can also improve the filtering efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the technical description.
[0021] Figure 1 The structure schematic diagram of the diesel engine system cooling water recycling device provided by the present application is shown in the figure.
[0022] Figure 2 The offline filtering circulation schematic diagram provided by the present application is shown in the figure.
[0023] Figure 3 The online filtering circulation schematic diagram provided by the present application is shown in the figure.
[0024] BRIEF DESCRIPTION OF DRAWINGS
[0025] 1, water tank; 2, water pump; 3, coarse filter; 4, fine filter; 5, first isolation valve; 6, check valve; 7, second isolation valve; 8, third isolation valve; 9, fourth isolation valve; 10, fifth isolation valve; 11, sixth isolation valve; 12, seventh isolation valve; 13, diesel engine system; 14, liquid level meter; 15, diesel engine system expansion tank; 16, discharge valve. DETAILED DESCRIPTION
[0026] Further details are provided below by way of specific embodiments.
[0027] As shown in Figure 1 and Figure 2 The utility model provides a diesel engine system cooling water recycling device, including water tank 1, water pump 2, coarse filter 3, fine filter 4, water tank 1 and water pump 2 are connected through first pipe line, water pump 2 and coarse filter 3 are connected through second pipe line, coarse filter 3 and fine filter 4 are connected through third pipe line, fine filter 4 and water tank 1 are connected through fourth pipe line. First pipe line is equipped with first isolation valve 5, second pipe line is equipped with check valve 6 and second isolation valve 7, third pipe line is equipped with third isolation valve 8, fourth pipe line is equipped with fourth isolation valve 9 and fifth isolation valve 10.
[0028] Check valve 6 is arranged at the export of water pump 2, and the second isolation valve 7 is arranged downstream of the check valve 6.
[0029] As shown in Figure 3 The fourth pipe line is externally connected to a fifth pipe line, one end of the fifth pipe line is connected to the pipe line between the fourth isolation valve 9 and the fifth isolation valve 10, and the other end is connected to the diesel engine system 13. The fifth pipe line is provided with a sixth isolation valve 11 and a seventh isolation valve 12. The sixth isolation valve 11 is an isolation valve for the diesel engine system 13.
[0030] The diesel engine system 13 is connected to a diesel engine system expansion tank 15, and the diesel engine system expansion tank 15 is connected to the water tank 1 through a sixth pipe line. The sixth pipe line is provided with a discharge valve 16.
[0031] Preferably, the diesel engine system expansion tank 15 is provided with a liquid level gauge 14, and the liquid level can be observed through the liquid level gauge 14 when the diesel engine cooling water system is normally put into operation.
[0032] Optionally, the coarse filter 3 is a stainless steel filter screen structure, and the filtering precision is 100 μm.
[0033] Optionally, the fine filter 4 is a magnetic adsorption type filter element, and the filtering precision is 10 μm.
[0034] Optionally, the first isolation valve 5, the second isolation valve 7, the third isolation valve 8, the fourth isolation valve 9, the fifth isolation valve 10, the sixth isolation valve 11 and the seventh isolation valve 12 are all electric isolation valves, and remote control can be realized.
[0035] Optionally, the water pump 2 is a centrifugal water pump, which is matched with the cooling demand of the diesel engine system 13.
[0036] The working process of the diesel engine system cooling water recycling device provided by the utility model is as follows:
[0037] In the offline filtering process, the water pump 2 is started to operate, the first isolation valve 5, the check valve 6, the second isolation valve 7, the third isolation valve 8, the fourth isolation valve 9 and the fifth isolation valve 10 are opened, and the sixth isolation valve 11 is closed. The cooling water in the water tank 1 flows through the coarse filter 3 and the fine filter 4 in sequence, and the filtered cooling water flows back into the water tank to re-enter the filtering process after the iron in the cooling water is filtered out through two-stage filtering, as shown in the figure, and the arrow shows the water flow direction. Figure 2
[0038] In the online filtering process, the water pump 2 is started to operate, the first isolation valve 5, the check valve 6, the second isolation valve 7, the third isolation valve 8, the fourth isolation valve 9 and the sixth isolation valve 11 are opened, and the fifth isolation valve 10 is closed. The cooling water in the water tank 1 flows through the coarse filter 3 and the fine filter 4 in sequence, and the filtered cooling water flows into the diesel engine system 13 through the seventh isolation valve 12 on the diesel engine system after the iron in the cooling water is filtered out through two-stage filtering, and flows back to the water tank 1 through the discharge valve 16 of the diesel engine system expansion tank 15 to realize online circulation, as shown in the figure, and the arrow shows the water flow direction. Figure 3
[0039] When the diesel engine cooling water system is normally put into operation, the liquid level meter 14 can see the liquid level, and the entire diesel engine cooling water system below the liquid level meter 14 is filled with water. In the online filtering process, the opening degree of the seventh isolation valve 12 is adjusted by observing the change of the liquid level of the liquid level meter 14, so that the flow rate of the water pump 2 outlet and the flow rate of the discharge valve 16 outlet are basically the same, the liquid level in the liquid level meter 14 is stable, the cooling water amount is not reduced, so that the diesel engine system is always in a usable state.
[0040] In the working process of the device, if the main equipment such as the water tank 1, the water pump 2, the coarse filter 3 and the fine filter 4 is damaged, the isolation valve at the inlet and outlet of the main equipment can be closed to isolate the main equipment for separate maintenance without draining water.
[0041] The above merely describes specific implementation manners of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A diesel engine system cooling water recycling device characterized by comprising: The system includes a water tank (1), a water pump (2), a coarse filter (3), and a fine filter (4). The water tank (1) and the water pump (2) are connected by a first pipeline. The water pump (2) and the coarse filter (3) are connected by a second pipeline. The coarse filter (3) and the fine filter (4) are connected by a third pipeline. The fine filter (4) and the water tank (1) are connected by a fourth pipeline. A fourth isolation valve (9) and a fifth isolation valve (10) are provided on the fourth pipeline. A fifth pipeline is provided between the fourth isolation valve (9) and the fifth isolation valve (10). The fifth pipeline is connected to a diesel engine system (13). The diesel engine system (13) is connected to a diesel engine system expansion tank (15). The diesel engine system expansion tank (15) is connected to the water tank (1) through a sixth pipeline.
2. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The diesel engine system expansion tank (15) is equipped with a level gauge (14).
3. The diesel engine system cooling water recycling device according to claim 1 or 2, characterized in that, The sixth pipeline is equipped with a discharge valve (16).
4. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The first pipeline is equipped with a first isolation valve (5).
5. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The second pipeline is equipped with a check valve (6) and a second isolation valve (7).
6. The diesel engine system cooling water recycling device according to claim 5, characterized in that, The check valve (6) is located at the outlet of the water pump (2), and the second isolation valve (7) is located downstream of the check valve (6).
7. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The third pipeline is equipped with a third isolation valve (8).
8. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The water pump (2) is a centrifugal water pump.
9. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The coarse filter (3) is a stainless steel mesh structure with a filtration accuracy of 100μm.
10. The diesel engine system cooling water recycling device according to claim 1, characterized in that, The fine filter (4) is a magnetic adsorption filter element with a filtration accuracy of 10μm.