A cooling water recovery and utilization device for HXN3B diesel locomotives
By installing a water pipe adapter and a locking arm quick connector at the drain pipe shut-off valve of the HXN3B diesel locomotive, connecting the water storage tank and equipping it with a filter structure, the problem of unrecoverable cooling water was solved, achieving effective resource utilization and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY JINAN BUREAU GRP CO LTD JINAN WEST LOCOMOTIVE DEPOT
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-30
AI Technical Summary
The cooling water of the HXN3B diesel locomotive cannot be recycled, resulting in resource waste and safety hazards. The existing drain pipe shut-off valve design has defects and is easily opened by mistake.
A water pipe adapter is installed at the outlet end of the locomotive drain pipe stop valve, and the drain pipe is connected to the drain pipe through a locking arm quick connector. The other end of the drain pipe is connected to a water storage tank, which is equipped with a filter structure for impurities and grease to realize the recycling of cooling water.
It enables simple recycling of cooling water, reduces resource waste, lowers costs, eliminates safety hazards, and requires minimal modifications and is inexpensive.
Smart Images

Figure CN224432658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cooling water recovery and utilization device for HXN3B type diesel locomotives, belonging to the technical field of diesel locomotives. Background Technology
[0002] The HXN3B locomotive's drain pipe is located at the lowest point of the locomotive, and there is only one shut-off valve on the pipe. Due to this design flaw, the locomotive's cooling water cannot be recycled. When major components are replaced or leaks in the water pipe gaskets are being repaired, the qualified cooling water in the locomotive can only be discharged into the sludge sump, and is wasted because it cannot be recycled. The cost of the cooling water is approximately 4,000 yuan per locomotive, which is high. Furthermore, the shut-off valve on the drain pipe may be opened by vibration or accidental contact during locomotive operation, causing the locomotive's cooling water to be drained, posing a significant safety hazard. Utility Model Content
[0003] The purpose of this invention is to provide a cooling water recovery and utilization device for HXN3B diesel locomotives to solve the above-mentioned problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cooling water recovery and utilization device for an HXN3B diesel locomotive, the cooling water recovery and utilization device comprising:
[0005] Water pipe adapter, connected to the outlet end of the locomotive drain pipe shut-off valve;
[0006] A drainage pipe is connected to the water pipe adapter. A locking arm quick connector is arranged between the drainage pipe and the water pipe adapter. The male connector of the locking arm quick connector is located on the water pipe adapter, and the female connector of the locking arm quick connector is located on the drainage pipe.
[0007] A water storage tank is connected to the end of the drainage pipe.
[0008] Furthermore, the locking arm quick connector also includes a dead plug that is detachably connected to the male connector, and an anti-detachment structure is provided between the male connector and the dead plug.
[0009] Furthermore, the anti-detachment structure includes an anti-detachment hook disposed on the male connector and an anti-detachment hanging ring fixed on the dead plug.
[0010] Furthermore, the water pipe adapter includes a connecting section and an adapter section. The connecting section is hexagonal and has a connecting thread on its inner wall that is threaded to the outlet end of the shut-off valve. The outer surface of the adapter section has a connecting thread that is threaded to the locking arm quick connector.
[0011] Furthermore, a filtration structure is provided between the drainage pipe and the water storage tank, the filtration structure including at least one impurity filtration component and an grease filtration component disposed at the tail end of the impurity filtration component.
[0012] Furthermore, the impurity filtration assembly is provided in two sets, namely a stainless steel filter screen and a polypropylene filter element filter.
[0013] Furthermore, the grease filtration assembly is an activated carbon adsorption tank.
[0014] Furthermore, the water storage tank is externally connected to a water supply assembly for adding cooling water to the locomotive. The water supply assembly includes a water supply pipe connected to the bottom of the water storage tank and a water pump installed on the water supply pipe.
[0015] The beneficial effects of this utility model are as follows: This application sets a water pipe adapter at the outlet end of the locomotive drain pipe stop valve and connects the drain pipe to the drain pipe via a locking arm quick connector. The other end of the drain pipe is connected to a water storage tank. Thus, when it is necessary to recover cooling water, the male and female connectors of the locking arm quick connector are connected, the locking arm is locked, and the drain stop valve is opened to recover the cooling water. After the recovery is completed, the stop valve is closed and the male and female connectors are disconnected. The recovery process is simple to operate, reduces resource waste, and achieves cost savings. At the same time, the entire recovery device requires minimal modification to the locomotive drain pipe and is inexpensive.
[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a cooling water recovery and utilization device for an HXN3B diesel locomotive, as shown in an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of a dead blockage in a cooling water recovery and reuse device. Detailed Implementation
[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, in this utility model, unless otherwise explicitly specified and limited, "on" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium.
[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] Please refer to Figures 1 to 2 An embodiment of this application shows a cooling water recycling device for an HXN3B diesel locomotive. The cooling water recycling device includes a water pipe adapter 20, a drain pipe 30, and a water storage tank 50. The water pipe adapter 20 is connected to the outlet end of the locomotive drain pipe 10 shut-off valve 11. The inner diameter of the water pipe adapter 20 is not smaller than that of the outlet end of the locomotive drain pipe 10 shut-off valve 11 to ensure the discharge speed of the discharged cooling water.
[0025] The drain pipe 30 is connected to the water pipe adapter 20. A locking arm quick connector 40 is arranged between the drain pipe 30 and the water pipe adapter 20. The male connector 41 of the locking arm quick connector 40 is set on the water pipe adapter 20, and the female connector 42 of the locking arm quick connector 40 is set on the drain pipe 30.
[0026] The water storage tank 50 is connected to the end of the drain pipe 30. The water storage tank 50 is used to collect cooling water. The drain pipe 30 and the water storage tank 50 can be fixedly connected or can be set to a detachable connection, which can be set according to actual needs.
[0027] In one embodiment, the locking arm quick connector 40 further includes a dead plug 46 detachably connected to the male connector 41, and an anti-detachment structure is provided between the male connector 41 and the dead plug 46. The dead plug 46 is used to seal the male connector 41 after the female connector 42 is removed from the male connector 41. By providing an anti-detachment structure between the male connector 41 and the dead plug 46, the dead plug 46 is prevented from falling off the male connector 41, thereby effectively eliminating the safety hazard caused by the accidental opening of the locomotive drain pipe 10 shut-off valve 11.
[0028] In one embodiment, the anti-detachment structure includes an anti-detachment hook 45 disposed on the male connector 41 and an anti-detachment ring 44 fixed on the dead stop 46. The anti-detachment ring 44 is disposed on the locking arm of the dead stop 46, and two sets of anti-detachment hooks 45 are provided, symmetrically arranged on both sides of the male connector 41, so as to connect with the anti-detachment ring 44, thereby locking the position of the locking arm of the dead stop 46 and preventing the locking arm 43 from being opened due to accidental contact. In addition, anti-detachment hooks 45 can also be provided on the drain pipe 30 or the female connector 42, so that when the male connector 41 and the female connector 42 are connected, the locking arm 43 can be fixed by the anti-detachment hook 45 and the anti-detachment ring 44, avoiding the safety hazard of the locking arm 43 being opened accidentally.
[0029] In one embodiment, the water pipe adapter 20 includes a connecting section and an adapter section. The connecting section is hexagonal and has connecting threads on its inner wall that connect to the outlet end of the shut-off valve 11. The outer surface of the adapter section has connecting threads that connect to the locking arm quick connector 40. The threaded connections of the water pipe adapter 20 are sealed with sealant or sealing tape to prevent cooling water leakage.
[0030] In one embodiment, a filter structure 60 is provided between the drain pipe 30 and the water storage tank 50. The filter structure 60 includes at least one impurity filter component and a grease filter component disposed at the end of the impurity filter component. The impurity filter component and the grease filter component respectively filter impurities and grease from the recovered cooling water, reducing secondary pollution.
[0031] In one embodiment, the impurity filtration assembly comprises two sets: a stainless steel filter screen 61 and a polypropylene filter cartridge 62. The stainless steel filter screen 61 uses a 100-200μm mesh to intercept large particles and rubber residues, while the polypropylene filter cartridge 62 is used to recover suspended solids of 1-10μm, ensuring the cooling water is clear and free of impurities. Of course, in other embodiments, a bag filter or similar filter can also be installed between the two sets of impurity filtration assemblies to filter fine metal particles and sediments.
[0032] In one embodiment, the grease filtration component is an activated carbon adsorption tank 63, which is used to absorb grease and odors, further improving the cleanliness of the cooling water.
[0033] In one embodiment, the water storage tank 50 is externally connected to a water delivery assembly for transferring cooling water. The water delivery assembly includes a water delivery pipe 51 connected to the bottom of the water storage tank 50 and a water pump 52 mounted on the water delivery pipe 51. The water pump 52 and the water delivery pipe 51 work together to facilitate the rapid transfer or replenishment of cooling water into the locomotive.
[0034] This application involves installing a water pipe adapter at the outlet end of the locomotive's drain pipe shut-off valve and connecting the drain pipe via a locking arm quick-connect coupling. The other end of the drain pipe is connected to a water storage tank. Thus, when cooling water needs to be recovered, the male and female connectors of the locking arm quick-connect coupling are connected, the locking arm is locked, and the drain shut-off valve is opened to recover the cooling water. After recovery is completed, the shut-off valve is closed, and the male and female connectors are disconnected. The recovery process is simple to operate, reduces resource waste, and achieves cost savings. At the same time, the entire recovery device requires minimal modification to the locomotive's drain pipe and is inexpensive.
[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A cooling water recovery and utilization device for HXN3B type diesel locomotives, characterized in that, The cooling water recycling device includes: Water pipe adapter, connected to the outlet end of the locomotive drain pipe shut-off valve; A drainage pipe is connected to the water pipe adapter. A locking arm quick connector is arranged between the drainage pipe and the water pipe adapter. The male connector of the locking arm quick connector is located on the water pipe adapter, and the female connector of the locking arm quick connector is located on the drainage pipe. A water storage tank is connected to the end of the drainage pipe.
2. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 1, characterized in that, The locking arm quick connector also includes a dead plug that is detachably connected to the male connector, and an anti-detachment structure is provided between the male connector and the dead plug.
3. The cooling water recovery and utilization device for the HXN3B diesel locomotive as described in claim 2, characterized in that, The anti-detachment structure includes an anti-detachment hook disposed on the male connector and an anti-detachment hanging ring fixed on the dead plug.
4. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 1, characterized in that, The water pipe adapter includes a connecting section and an adapter section. The connecting section is hexagonal and has a connecting thread on its inner wall that is threaded to the outlet end of the shut-off valve. The outer surface of the adapter section has a connecting thread that is threaded to the locking arm quick connector.
5. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 1, characterized in that, A filtration structure is provided between the drainage pipe and the water storage tank. The filtration structure includes at least one impurity filtration component and an grease filtration component disposed at the tail end of the impurity filtration component.
6. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 5, characterized in that, The impurity filtration assembly is provided in two sets, namely a stainless steel filter screen and a polypropylene filter element.
7. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 6, characterized in that, The grease filtration component is an activated carbon adsorption tank.
8. The cooling water recovery and utilization device for HXN3B diesel locomotives as described in claim 1, characterized in that, The water storage tank is externally connected to a water supply assembly for adding cooling water to the locomotive. The water supply assembly includes a water supply pipe connected to the bottom of the water storage tank and a water pump installed on the water supply pipe.