A protective device for a diesel engine water pump unit

Abstract

The present invention relates to the field of diesel engine technology, and discloses a diesel engine water pump unit protection device, comprising a diesel engine and a water pump unit, wherein a water pump unit is provided with a water pump pipe and a water distribution pipe, wherein the water pump pipe has a square hole, the water pump pipe and the water distribution pipe are perpendicular to each other, the water distribution pipe is raised and lowered below the water pump pipe by a temperature sensing lifting portion, a plurality of telescopic cylinders are inserted into the water pump pipe, and the telescopic cylinders are provided with a water-permeable hole connected to the water distribution pipe. The water distribution pipe is raised and lowered below the water pump pipe by the temperature sensing lifting portion, and a hot water body area attached to the water distribution pipe is used to transfer the water temperature of the hot water body in the water distribution pipe to the temperature sensing lifting portion, and then change the distance between the water distribution pipe and the water pump pipe, so that the amount of cold water entering the water pump pipe increases by raising the water inlet pipe and the water outlet pipe, that is, the amount of cold water passing through the cooling water pipe in the diesel engine increases, which can better cool the heated diesel engine and complete the diversion and cooling of the water body in the water pump pipe to the diesel engine.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel engines, and in particular to a protection device for a diesel engine water pump unit. Background Art

[0002] The diesel engine water pump unit is powered by a diesel engine and is equipped with a water pump and other auxiliary equipment to form a pump station unit. It is mainly used for water pumping stations for mining or irrigation on the ground or in low-humidity areas. The water pump and other auxiliary equipment are installed on a rigid base. There are several types of protection for diesel engine water pump units:

[0003] For example, overspeed protection: when the diesel engine speed exceeds the set value, the protection device will automatically cut off the fuel supply or trigger an alarm to prevent the diesel engine from being damaged due to overspeed;

[0004] Another example is high temperature protection: when the diesel engine cooling water temperature or oil temperature is too high, the protection device will trigger an alarm or shut down to prevent the diesel engine from overheating and damage;

[0005] Leakage detection: The sensor detects water leakage at the pump seal. Once a leak is detected, the protection device will sound an alarm or shut down the pump. At the same time, for pumps with mechanical seals, leakage detection can monitor the seal status to prevent leakage or damage caused by seal failure.

[0006] Among them, the problems of diesel engine water pump units are usually related problems. For example, the cooling water temperature of the diesel engine increases, which will increase the internal pressure in the sealed state, and then cause the rubber hose to rupture and leak. Therefore, the failure of the seal leads to leakage or damage. However, the cause of this leakage or damage is unclear. Therefore, it is necessary to temporarily block the damage caused by this chain reaction in time to avoid continuous water seepage caused by the damage of the rubber hose.

[0007] Therefore, we designed a diesel engine water pump unit protection device. Summary of the Invention

[0008] The purpose of the present invention is to solve the problem in the prior art that the cooling water temperature of the diesel engine increases, which will increase the internal pressure in the sealed state and further cause the rubber hose to rupture and leak water, and to propose a diesel engine water pump unit protection device.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A diesel engine water pump unit protection device includes a diesel engine and a water pump unit. A water pump unit is provided with a water pump pipe and a water distribution pipe. The water pump pipe has a square hole therein. The water pump pipe and the water distribution pipe are perpendicular to each other. The water distribution pipe is raised and lowered below the water pump pipe via a temperature sensing lifting portion. A plurality of telescopic cylinders are provided on the water pump pipe. The telescopic cylinders are provided with water holes communicating with the water distribution pipe. The water holes are communicated with the water distribution pipe via a water pipe.

[0011] The diesel engine is connected to the water pump unit through a hose assembly, and a connecting pipe for protection is provided on the outer shell of the hose assembly.

[0012] Preferably, the telescopic cylinder includes a water inlet cylinder and a water outlet cylinder, and the water inlet cylinder and the water outlet cylinder telescopically slide on the water pumping pipe through the telescopic hole, and the water permeable hole includes a water inlet hole and a water outlet hole, and the water inlet hole and the water outlet hole are respectively provided in the water inlet cylinder and the water outlet cylinder, and the water inlet hole and the water outlet hole are arranged opposite to each other;

[0013] The water pipe includes an inlet pipe and an outlet pipe, which are symmetrically inserted on both sides of the water distribution pipe. The inlet pipe is connected to the water distribution pipe through the water inlet hole, and the outlet pipe is connected to the water distribution pipe through the water outlet hole.

[0014] Preferably, an inclined partition plate is provided in the water distribution pipe, and the partition plate is used to separate the water inlet pipe and the water outlet pipe.

[0015] Preferably, the temperature sensing lifting portion comprises:

[0016] The sleeve ring and the vertical tube are provided with a movable piston which can be lifted and slid in the vertical tube. The sleeve ring is provided with an inner cavity, and the inner cavity and the vertical tube below the movable piston are both filled with methanol.

[0017] Preferably, the temperature sensing lifting portion further comprises:

[0018] The sleeve and the lifting ring are coaxially sleeved on the outer wall of the vertical tube, and the vertical tube is connected to the sleeve through a through hole, and the lifting ring rises and slides in the sleeve;

[0019] A connecting rod, one end of which is inserted into the sleeve and connected to the top of the lifting ring, and the other end of the connecting rod is fixed to the outer wall of the water pumping pipe.

[0020] Preferably, a barrier portion is provided in the connecting pipe for protecting the hose assembly from water seepage.

[0021] Preferably, the barrier portion comprises:

[0022] A corrugated rubber tube is placed in the connecting tube, and a side wall of the corrugated rubber tube has a protrusion;

[0023] A plurality of sealing parts are linearly arranged in sequence along the outer wall of the corrugated rubber tube, and sealing films are provided at both ends of the sealing parts.

[0024] Preferably, the blocking portion includes:

[0025] A plurality of end rubber blocks are fixed on the protruding portion in a circumferential manner, and a tightening portion for tightening and sealing the damaged wrinkled rubber tube is provided on the plurality of end rubber blocks.

[0026] Preferably, the tightening portion comprises:

[0027] A pull rope is connected end to end and is used to connect multiple end rubber blocks in series. A placement cavity is opened on the side wall of the connecting pipe, and the pull rope extends into the placement cavity;

[0028] The rope rack is installed in the placement cavity, has two rope loops, and the pull rope passes through the two rope loops. A water absorption rod is provided in the placement cavity, the water absorption rod is located below the rope rack, and the pull rope is wrapped around the outer wall of the water absorption rod.

[0029] Preferably, the water absorbing rod is a mixture of silica gel desiccant and super absorbent resin sodium polyacrylate, and the outer side wall of the water absorbing rod is covered with gauze.

[0030] The beneficial effects of the present invention are:

[0031] In the present invention, the water distribution pipe is raised and lowered below the water pumping pipe through the temperature sensing lifting part, and the hot water body area attached to the water distribution pipe is used to transfer the water temperature of the hot water body in the water distribution pipe to the temperature sensing lifting part, and then change the distance between the water distribution pipe and the water pumping pipe. In this way, the water inlet cylinder and the water outlet cylinder are raised, so that the amount of cold water entering the water inlet cylinder will increase, that is, the amount of cold water passing through the cooling water pipe in the diesel engine will increase, which can better cool the heated diesel engine and complete the diversion of the water body in the water pumping pipe to cool the diesel engine.

[0032] The present invention relies on the contraction device to drive the side walls of the plurality of end rubber blocks arranged in a circle to press tightly together, thereby completing the tightening of the corrugated rubber tube. This will cause the side walls of the two adjacent end rubber blocks to press tightly together, and the sealing membranes at both ends cooperate to press the damaged corrugated rubber tube tightly together with the plurality of end rubber blocks, thereby completing the sealing and water-avoiding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural schematic diagram of a diesel engine water pump unit protection device proposed by the present invention;

[0034] Figure 2 This is a schematic diagram of the status of a water pump pipe and a water distribution pipe in a diesel engine water pump unit protection device proposed by the present invention;

[0035] Figure 3 This is a structural schematic diagram of a temperature sensor lifting portion in a diesel engine water pump unit protection device proposed by the present invention;

[0036] Figure 4This is a structural schematic diagram of a water distribution pipe in a diesel engine water pump unit protection device proposed by the present invention;

[0037] Figure 5 This is a schematic diagram of the internal structure of a connecting pipe in a diesel engine water pump unit protection device proposed by the present invention;

[0038] Figure 6 for Figure 5 A schematic diagram of the structure at center A;

[0039] Figure 7 This is a front view of a connecting pipe in a diesel engine water pump unit protection device proposed by the present invention.

[0040] In the figure: 1. Diesel engine; 2. Water pump unit; 3. Water pump pipe; 4. Water distribution pipe; 5. Connecting pipe; 6. Square hole;

[0041] 7. Telescopic cylinder; 71. Water inlet cylinder; 72. Water outlet cylinder;

[0042] 8. Water permeable hole; 81. Water inlet hole; 82. Water outlet hole;

[0043] 9. Water pipe; 91. Water inlet pipe; 92. Water outlet pipe;

[0044] 10. Ring; 11. Vertical tube; 12. Sleeve; 13. Inner cavity; 14. Movable piston; 15. Through hole; 16. Lifting ring; 17. Connecting rod; 18. Partition plate; 19. Placement cavity; 20. Pleated rubber tube; 21. End rubber block; 22. Pull rope; 23. Water absorption rod; 24. Rope rack. DETAILED DESCRIPTION

[0045] Example

[0046] Reference Figure 1-Figure 7 A diesel engine water pump unit protection device includes a diesel engine 1 and a water pump unit 2, wherein the water pump unit 2 is used to pump water, and the diesel engine 1 is used to provide power for the water pump unit 2 to pump water, wherein the diesel engine 1 and the water pump unit 2 are both existing technologies and will not be elaborated on here.

[0047] A water suction pipe 3 and a water distribution pipe 4 are inserted into the water pump unit 2. The water suction pipe 3 has a square hole 6. The water suction pipe 3 and the water distribution pipe 4 are perpendicular to each other. A plurality of telescopic cylinders 7 are inserted into the water suction pipe 3. The telescopic cylinder 7 is provided with a water-permeable hole 8 connected to the water distribution pipe 4. The water-permeable hole 8 is connected to the water distribution pipe 4 through a water pipe 9. Therefore, the water distribution pipe 4 is connected to the water suction pipe 3 through the telescopic cylinder 7. Therefore, the water flow originally pumped by the water pump unit 2 will separate a part of the water body into the water distribution pipe 4 through the telescopic cylinder 7 and the water pipe 9 in the process of passing through the square hole 6 of the water suction pipe 3. The diesel engine 1 is connected to the water pump unit 2 through the hose assembly, and then the water distribution pipe 4 introduces the cold water body into the diesel engine 1 through the hose assembly. The hose assembly is outer-circuited with a connecting pipe 5 for protection.

[0048] The diesel engine 1 is provided with a cooling water pipe. The cold water introduced from the hose assembly enters one end of the cooling water pipe to cool the heated diesel engine 1. Then the heated water flows out from the other end of the hose assembly through the hose assembly.

[0049] Reference Figure 2 and Figure 4 The telescopic cylinder 7 includes a water inlet cylinder 71 and a water outlet cylinder 72, and the water inlet cylinder 71 and the water outlet cylinder 72 are telescopically slid on the water pumping pipe 3 through the telescopic hole. The water permeable hole 8 includes a water inlet hole 81 and a water outlet hole 82. The water inlet hole 81 and the water outlet hole 82 are respectively provided in the water inlet cylinder 71 and the water outlet cylinder 72, and the water inlet hole 81 and the water outlet hole 82 are arranged opposite to each other. The opposite arrangement is to ensure that a part of the water flow is separated from the water inlet hole 81 during the flow of the water body, and then the separated part of the water flow flows out from the water outlet hole 82 and merges with the water body in the water pumping pipe 3. Therefore, the water body for cooling the diesel engine 1 is directly cooled by the water body extracted and transported by the water pump unit 2. When the cooling water body becomes hot, it is directly discharged and then continues to provide cooling water for cooling the diesel engine 1. Therefore, the water flow for cooling the diesel engine 1 does not require extra power drive, and only relies on the water flow in the water pumping pipe 3 in the water pump unit 2.

[0050] The water pipe 9 includes an inlet pipe 91 and an outlet pipe 92, which are symmetrically inserted on both sides of the water distribution pipe 4, and the water inlet cylinder 71 is connected to the water distribution pipe 4 through the water inlet hole 81, and the water outlet cylinder 72 is connected to the water distribution pipe 4 through the water outlet hole 82. This arrangement ensures that the water passes through the inlet cylinder 71 first and then through the outlet cylinder 72 during the process of passing through the water pumping pipe 3. As the inlet cylinder 71 and the outlet cylinder 72 are lifted, the water in the square hole 6 will enter the inlet cylinder 71 from the water inlet hole 81 during the flow, and then enter the water distribution pipe 4 from the inlet pipe 91.

[0051] like Figure 4In this state, an inclined partition plate 18 is provided in the water distribution pipe 4, and the partition plate 18 is used to separate the water inlet pipe 91 and the water outlet pipe 92. Therefore, this part of the cold water will enter the water distribution pipe 4 from the water inlet pipe 91. After water cooling, the heated hot water reaches the other side of the partition plate 18 and flows out of the water distribution pipe 4 from the water outlet pipe 92. Then the hot water in the water outlet pipe 92 reaches the water outlet cylinder 72 and flows out from the water outlet hole 82. Therefore, a part of the water is drawn out from the square hole 6 to the cooling water pipe in the diesel engine 1, thereby completing the cooling of the diesel engine 1.

[0052] It should be noted that the flow of water in the water pumping pipe 3 provides power for the flow of heavy water in the cooling water pipe in the diesel engine 1. No additional driving force is required to drive the water used for cooling. At the same time, it can also ensure that the cooling water pipe flowing into the diesel engine 1 is always cold water.

[0053] Since the water distribution pipe 4 is raised and lowered below the water extraction pipe 3 through the temperature sensing lifting part, wherein the temperature sensing lifting part is arranged on the outer wall of the water distribution pipe 4 and attached to the hot water body area on the water distribution pipe 4, it is used to transfer the water temperature of the hot water body in the water distribution pipe 4 to the temperature sensing lifting part, and then change the distance between the water distribution pipe 4 and the water extraction pipe 3, that is, the temperature of the area where the hot water body is located in the water distribution pipe 4 increases, and the distance between the water distribution pipe 4 and the water extraction pipe 3 is shortened by the temperature sensing lifting part, and the water inlet cylinder 71 and the water outlet cylinder 72 connected to the outer wall of the water distribution pipe 4 are extended into the square hole 6 in the water extraction pipe 3. In this way, the water inlet cylinder 71 and the water outlet cylinder 72 are raised, so that the amount of cold water entering the water inlet cylinder 71 will increase, that is, the amount of cold water passing through the cooling water pipe in the diesel engine 1 will increase, which can better cool the heated diesel engine 1 and complete the diversion of the water body in the water extraction pipe 3 to cool the diesel engine 1.

[0054] The working principle of the present invention is as follows:

[0055] First, the diesel engine 1 and the water pump unit 2 are turned on. The diesel engine 1 is turned on to provide power for the water pump unit 2 to pump water. The water pump unit 2 is used to pump water. The pumped water passes through the pumping pipe 3. In the initial state, the square hole 6 protrudes from the top of the telescopic cylinder 7, allowing part of the water in the pumping pipe 3 to be directed into the water distribution pipe 4.

[0056] Due to the presence of the partition plate 18, part of the cold water will enter the water distribution pipe 4 from the water inlet pipe 91. After water cooling, the heated hot water reaches the other side of the partition plate 18 and flows out of the water distribution pipe 4 from the water outlet pipe 92. Then the hot water in the water outlet pipe 92 reaches the water outlet cylinder 72 and flows out from the water outlet hole 82. Therefore, a part of the water is drawn out from the square hole 6 to the cooling water pipe in the diesel engine 1, thereby completing the cooling of the diesel engine 1.

[0057] At the same time, by raising the water inlet cylinder 71 and the water outlet cylinder 72, the amount of cold water entering the water inlet cylinder 71 will increase, that is, the amount of cold water passing through the cooling water pipe in the diesel engine 1 will increase, which can better cool the heated diesel engine 1 and complete the diversion of the water in the water extraction pipe 3 to cool the diesel engine 1.

[0058] Example

[0059] Reference Figure 2 and Figure 3 State, the temperature sensing lifting part includes a collar 10 and a vertical tube 11, wherein the collar 10 is sleeved on the outer wall of the water distribution pipe 4 where hot water flows, so that the temperature of the hot water is easily transferred to the collar 10, and a movable piston 14 is lifted and slid in the vertical tube 11, and an inner cavity 13 is provided in the collar 10, and the inner cavity 13 and the vertical tube 11 below the movable piston 14 are filled with methanol, and the boiling point of methanol is 64.5 ° C. When the cold water body is cooled and the water body temperature rises to the boiling point of methanol, it is necessary to increase the cooling strength of the diesel engine 1. Therefore, after the methanol is heated and vaporized, it will lift the movable piston 14 in the vertical tube 11;

[0060] The temperature sensing lifting part also includes a sleeve 12 and a lifting ring 16. The sleeve 12 is coaxially sleeved on the outer wall of the vertical tube 11, and the vertical tube 11 is connected to the sleeve 12 through the through hole 15. The lifting ring 16 rises and falls and slides in the sleeve 12. Therefore, after the movable piston 14 is lifted, the lifting ring 16 will be lowered by air pressure. One end of the connecting rod 17 is inserted into the sleeve 12 and connected to the top of the lifting ring 16. The other end of the connecting rod 17 is fixed to the outer wall of the water pumping pipe 3. Therefore, the temperature of the hot water body is finally raised to exceed the boiling point of methanol, driving the water distribution pipe 4 to rise upward and close to the water pumping pipe 3. At the same time, the water inlet cylinder 71 and the water outlet cylinder 72 are lifted, allowing more cold water to enter the water distribution pipe 4, completing the rapid cooling of the high-pressure diesel engine 1.

[0061] Example

[0062] A barrier portion is provided in the connecting pipe 5 for protecting the hose assembly from water seepage. The heating of the high-pressure diesel engine 1 causes the pressure of the hose to increase. Once damage occurs, it is necessary to block the damaged area in time to ensure the continuation of the cooling process.

[0063] Reference Figure 5-Figure 7 The barrier portion includes a corrugated rubber tube 20, which is placed in the connecting tube 5. The side wall of the corrugated rubber tube 20 has a protrusion. The corrugated rubber tube 20 is arranged in this way so that when the side wall of the corrugated rubber tube 20 is damaged, the two adjacent protrusions in the damaged area are close to each other, thereby completing the closing of the two adjacent protrusions, allowing the corrugated rubber tube 20 to complete the contraction effect.

[0064] The blocking part also includes multiple sealing parts, which are linearly arranged in sequence along the outer wall of the corrugated rubber tube 20, and sealing membranes are provided at both ends of the sealing part, wherein the sealing part includes multiple end rubber blocks 21, and the multiple end rubber blocks 21 are circumferentially fixed on the protruding part. The multiple end rubber blocks 21 are provided with tightening parts for tightening and sealing the damaged corrugated rubber tube 20. The sealing membrane is used to seal the two ends of multiple groups of end rubber blocks 21. The sealing membrane divides the corrugated rubber tube 20 into multiple separate closed spaces. If one of the closed spaces is damaged, the leaking closed space will be sealed and water-avoided.

[0065] Among them, when water leakage occurs between two adjacent protrusions, the sprayed water will be sprayed onto the inner wall of the connecting tube 5 and reach the tightening part, wherein the tightening part is used to rely on liquid to trigger multiple end rubber blocks 21 to approach each other, and rely on the contraction device to drive the side walls of multiple end rubber blocks 21 to fit tightly, thereby completing the tightening of the corrugated rubber tube 20. The tightening part is a prior art and will not be elaborated on here. Then, it drives the group of multiple end rubber blocks 21 arranged in a circle to approach each other, which will make the side walls of the two adjacent end rubber blocks 21 fit tightly, and the sealing membranes at both ends cooperate to make the damaged corrugated rubber tube 20 close to each other by the multiple end rubber blocks 21, thereby completing the sealing and water-avoiding function.

[0066] Example

[0067] Reference Figure 6 and Figure 7 State, the tightening part includes a drawstring 22, the drawstring 22 is connected end to end, and the drawstring 22 is used to connect multiple end rubber blocks 21 in series, the side wall of the connecting pipe 5 is provided with a placement cavity 19, the drawstring 22 extends into the placement cavity 19, the rope rack 24 is installed in the placement cavity 19, the rope rack 24 has two rope loops, and the drawstring 22 passes through the two rope loops, a water absorption rod 23 is provided in the placement cavity 19, the water absorption rod 23 is located below the rope rack 24, and the drawstring 22 is wrapped around the outer wall of the water absorption rod 23, so the water absorption rod 23 contacts and absorbs the liquid sprayed from the pleated rubber tube 20, wherein the water absorption rod 23 is a silica gel desiccant and a super absorbent The water-based resin sodium polyacrylate mixture, the outer wall of the water-absorbing rod 23 is covered with gauze, which does not hinder expansion, but only serves to stabilize the water-absorbing rod 23. In this way, the silica gel desiccant and super absorbent resin sodium polyacrylate mixture will absorb water and expand, and also has a certain hardness, which will drive the expansion of the outer wall of the water-absorbing rod 23 wrapped around the bottom of the rope rack 24, and then shrink the pull rope 22 above the rope rack 24, and finally drive the multiple end rubber blocks 21 connected in series to approach each other, and finally realize the tightening of the multiple end rubber blocks 21, completing the tightening and water blocking of the damaged corrugated rubber tube 20.

[0068] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A diesel engine water pump unit protection device, comprising a diesel engine and a water pump unit, characterized in that: The water pump unit is provided with a water suction pipe and a water distribution pipe. The water suction pipe has a square hole. The water suction pipe and the water distribution pipe are perpendicular to each other. The water distribution pipe is raised and lowered below the water suction pipe through a temperature sensing lifting part. A plurality of telescopic cylinders are provided on the water suction pipe. The telescopic cylinders are provided with water holes connected to the water distribution pipe. The water holes are connected to the water distribution pipe through a water pipe. The water distribution pipe is connected to the diesel engine through a hose assembly. A protective connecting pipe is provided on the outer shell of the hose assembly. A barrier portion is provided in the connecting pipe to protect the hose assembly from water seepage. The barrier portion includes a corrugated rubber tube and a sealing portion. The corrugated rubber tube is placed in the connecting pipe. The sealing portion includes multiple end rubber blocks. The multiple end rubber blocks are provided with a tightening portion for tightening and sealing the damaged corrugated rubber tube. The tightening portion includes a drawstring, which is connected end to end. A placement cavity is opened on the side wall of the connecting pipe. A water absorption rod is provided in the placement cavity, and the drawstring is wrapped around the outer wall of the water absorption rod. The temperature sensor lifting portion includes: The sleeve and the vertical tube have a movable piston that moves up and down and slides in the vertical tube. The sleeve is provided with an inner cavity, and the inner cavity and the vertical tube below the movable piston are both filled with methanol. The sleeve and the lifting ring are coaxially sleeved on the outer wall of the vertical tube, and the vertical tube is connected to the sleeve through a through hole, and the lifting ring rises and slides in the sleeve; Connecting rod, one end of the connecting rod is inserted into the casing and connected to the top of the lifting ring, and the other end of the connecting rod is fixed to the outer wall of the water pumping pipe; The collar is arranged on the outer periphery of the water distribution pipe.

2. A diesel engine water pump unit protection device according to claim 1, characterized in that: The telescopic cylinder includes a water inlet cylinder and a water outlet cylinder, and the water inlet cylinder and the water outlet cylinder telescopically slide on the water pumping pipe through the telescopic hole, and the water permeable hole includes a water inlet hole and a water outlet hole, and the water inlet hole and the water outlet hole are respectively opened in the water inlet cylinder and the water outlet cylinder, and the water inlet hole and the water outlet hole are arranged opposite to each other; The water pipe includes an inlet pipe and an outlet pipe, which are symmetrically inserted on both sides of the water distribution pipe. The inlet pipe is connected to the water distribution pipe through the water inlet hole, and the outlet pipe is connected to the water distribution pipe through the water outlet hole.

3. A diesel engine water pump unit protection device according to claim 2, characterized in that: An inclined partition plate is provided in the water distribution pipe, and the partition plate separates the water inlet pipe and the water outlet pipe.

4. A diesel engine water pump unit protection device according to claim 1, characterized in that: The sealing parts are arranged in a linear manner on the outer wall of the corrugated rubber tube, and sealing membranes are provided at both ends of the sealing parts; The side wall of the corrugated rubber tube has a protrusion.

5. A diesel engine water pump unit protection device according to claim 4, characterized in that: A plurality of end rubber blocks are fixed to the protruding portion in a circumferential manner.

6. A diesel engine water pump unit protection device according to claim 5, characterized in that: The pull rope is connected in series with multiple end rubber blocks, and the pull rope extends into the placement cavity. The tightening part also includes: The rope rack is installed in the placement cavity, has two rope loops, and the pull rope passes through the two rope loops. The water absorption rod is located below the rope rack.

7. A diesel engine water pump unit protection device according to claim 6, characterized in that: The water absorbing stick is a mixture of silica gel desiccant and super absorbent resin sodium polyacrylate, and the outer side wall of the water absorbing stick is covered with gauze.

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