Water pump forced circulation cooling system

Abstract

The utility model provides a water pump forced circulation cooling system which comprises a water pump shell, a centrifugal impeller is arranged in the water pump shell, a circulating water diversion flow channel is formed in a shell body of the water pump shell, and a water inlet of the circulating water diversion flow channel is arranged on the outer portion of the water outlet side of the centrifugal impeller in an abutting mode. The water inlet area of the water pump shell is provided with a circulating water return flow channel. Flame extinguishing exhaust in the system is communicated with a circulating water diversion flow channel through a water diversion pipe to complete cooling water inflow, and high-pressure water on the water outlet side of an impeller of the centrifugal water pump is introduced into a cooling cavity of the flame extinguishing exhaust. Cooling water in a cooling cavity of the flame-extinguishing exhaust is led to a circulating water return flow channel through a water return pipe, and the circulating water flow can take away most heat in the flame-extinguishing exhaust cavity, so that flame-extinguishing exhaust cooling is realized, and an operator is prevented from being scalded due to high temperature of exhaust during operation of a water pump of an internal combustion engine.

Description

Technical Field

[0001] This utility model mainly relates to the field of water pumps, specifically to a water pump forced circulation cooling system. Background Technology

[0002] When water pumps are used in conjunction with internal combustion engines such as gasoline or diesel engines, the exhaust temperature of these engines is relatively high. Unlike engines with internal liquid or air-cooled components such as the cylinder block, the exhaust pipes primarily rely on passive cooling. This means that during equipment operation, or even while moving equipment, the exhaust from the running engine can easily cause burns to the operator.

[0003] The inventor proposes a water pump forced circulation cooling system. Water outlet and return points are set on the outlet and inlet sides of the system, respectively. A circulation water path is designed based on the pressure difference between the outlet and inlet sides of the system. At the same time, the existing exhaust pipe structure is modified, and a flow channel structure for water circulation is added to the designed flame extinguishing exhaust to complete the heat dissipation design of the flame extinguishing exhaust, effectively avoiding the occurrence of burns to the operator due to the high temperature of the flame extinguishing exhaust. Utility Model Content

[0004] 1. The problem that the utility model aims to solve:

[0005] This utility model provides a water pump forced circulation cooling system to solve the technical problem mentioned in the background art that the exhaust end of the existing internal combustion engine power water pump has a high temperature that can easily burn the operator.

[0006] 2. Technical Solution:

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows: a water pump forced circulation cooling system, including a water pump casing, a centrifugal impeller is provided inside the water pump casing, a circulating water inlet channel is provided on the casing of the water pump casing, the inlet of the circulating water inlet channel is located close to the outlet side of the centrifugal impeller, and a circulating water return channel is provided in the water inlet area of ​​the water pump casing.

[0008] The pumping assembly of a centrifugal water pump consists of a pump casing and a centrifugal impeller. When the centrifugal impeller rotates inside the pump casing, there is a significant pressure difference between the water inlet area and the inner wall edge of the pump casing. A water channel can be designed between the outlet of the circulating water intake channel and the inlet of the circulating water return channel. Combined with the working water supply pressure of the centrifugal water pump, the water in this channel can have a high flow velocity. This water channel, added in addition to the original inlet and outlet water passages of the pump casing, can provide cooling for the relevant components of the entire pump.

[0009] In this technical solution, a forced circulation cooling system for the water pump can be designed by connecting a return water pipe and an incoming water pipe to the traditional inlet and outlet water pipes of the water pump casing. However, this solution does not have an advantage in terms of equipment miniaturization compared to the above solutions.

[0010] Furthermore, it also includes a flame extinguishing exhaust system, wherein the inlet of the flame extinguishing exhaust system is connected to the outlet of the water intake pipe, the inlet of the water intake pipe is connected to the outlet of the circulating water intake channel, the return outlet of the flame extinguishing exhaust system is connected to the inlet of the return pipe, and the outlet of the return pipe is connected to the inlet of the circulating water return channel.

[0011] The flame extinguishing exhaust is connected to the circulating water intake channel and the circulating water return channel through the intake pipe and return pipe. Combined with the working pumping of the centrifugal impeller in the pump casing, the circulating water channel design of the pump casing, circulating water intake channel, intake pipe, channel, return pipe and circulating water return channel is completed. The water in the circulating water channel can achieve continuous circulation and replacement along with the pumping work of the centrifugal impeller, avoiding the water in the circulating water channel from heating up and reducing the cooling effect.

[0012] Furthermore, an outlet pipe is fixedly provided on the outlet side of the water pump casing, and an internal combustion engine can be connected to the pump base of the water pump casing, with the power output shaft of the internal combustion engine connected to a centrifugal impeller.

[0013] The outlet pipe and the water inlet area of ​​the water pump casing are conventional water inlet and outlet water channels for the water pump casing. The power source of the centrifugal water pump is an internal combustion engine. Different types of internal combustion engines can be selected to meet the output power design requirements of the water pump according to the performance design requirements such as the pump head.

[0014] Furthermore, the air inlet of the flame extinguishing exhaust is connected to the exhaust port of the internal combustion engine. A flame extinguishing shell is fixedly provided on the inner wall of the flame extinguishing exhaust near the air inlet. A through hole is fixedly provided on the outer side of the flame extinguishing shell, which is connected to the exhaust port of the flame extinguishing exhaust. A cooling water flow channel is formed between the outer side of the flame extinguishing shell and the inner side of the flame extinguishing exhaust. The water inlet side of the cooling water flow channel is connected to the water outlet of the water inlet pipe, and the water outlet of the cooling water flow channel is connected to the water inlet of the water return pipe. The outer side of the flame extinguishing shell is immersed in the cooling water flow channel.

[0015] Furthermore, a flame-extinguishing baffle is fixedly provided at the air inlet of the flame-extinguishing exhaust, and the flame-extinguishing baffle is disposed inside the flame-extinguishing housing.

[0016] The flame extinguishing exhaust works in conjunction with the flame extinguishing housing to guide the exhaust gas from the internal combustion engine. Combined with the flame extinguishing baffle, it completes the flame extinguishing treatment of the exhaust gas. The flame extinguishing housing is submerged in the water channel and is cooled down by the high-temperature exhaust gas from the internal combustion engine. Water is stored in the flow channel between the flame extinguishing housing and the flame extinguishing exhaust to complete the cooling design of the flame extinguishing exhaust.

[0017] Furthermore, the flame extinguishing housing is composed of a closed housing or an open housing, and the air inlet of the flame extinguishing housing in the closed housing is connected to the air inlet of the flame extinguishing exhaust.

[0018] The enclosed shell structure of the flame extinguishing device can be submerged in water channels, providing better cooling performance compared to the combination of an open shell and flame extinguishing exhaust.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] This invention provides a forced circulation cooling system for a water pump. In this system, the flame-extinguishing exhaust gas is connected to the circulating water intake channel via a water inlet pipe to receive cooling water, introducing high-pressure water from the centrifugal pump impeller outlet into the flame-extinguishing exhaust gas's own cooling chamber. The flame-extinguishing exhaust gas then draws the cooling water from its own cooling chamber back to the circulating water return channel via a return water pipe. This circulating water flow carries away most of the heat from the flame-extinguishing exhaust gas chamber, achieving temperature reduction and preventing burns to the operator caused by the high temperature of the exhaust gas from the internal combustion engine water pump during operation.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a perspective view of the structure of this utility model;

[0024] Figure 2 This is a half-sectional perspective view of the pump casing structure of this utility model;

[0025] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0026] Figure 4 This is a half-sectional perspective view of the flame extinguishing and exhaust structure of this utility model;

[0027] Figure 5 This is an exploded view of the open flame extinguishing shell structure of this utility model;

[0028] Figure 6 This is an exploded view of the enclosed flame extinguishing shell structure of this utility model.

[0029] Figure label:

[0030] Pump casing-1; Circulating water return channel-11; Circulating water intake channel-12;

[0031] Centrifugal impeller-2;

[0032] Internal Combustion Engine - 3;

[0033] Flame extinguishing exhaust -4; Flow channel -41;

[0034] Flame extinguishing casing-5;

[0035] Flame extinguishing baffle-6;

[0036] Water pipe-7;

[0037] Return water pipe - 8. Detailed Implementation

[0038] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0041] Reference Figure 1-6 A forced circulation cooling system for a water pump includes a water pump casing 1, a centrifugal impeller is provided inside the water pump casing 1, a circulating water inlet channel 12 is provided on the casing of the water pump casing 1, the inlet of the circulating water inlet channel 12 is located close to the outside of the outlet side of the centrifugal impeller, and a circulating water return channel 11 is provided in the water inlet area of ​​the water pump casing 1.

[0042] When the centrifugal impeller 2 pumps water inside the pump casing 1, the additional circulating water intake channel 12 and circulating water return channel 11, which are designed in addition to the original inlet and outlet water channels of the pump casing 1, can draw water out of the pump casing 1 to cool the relevant components of the pump. With the pumping operation of the centrifugal impeller 2, the components connected between the circulating water intake channel 12 and the circulating water return channel 11 can be cooled by circulating water supply. During the water supply process, the water flowing back into the pump casing 1 mixes with the water in the inlet area of ​​the pump casing 1 for cooling. This circulating cooling system has the characteristics of high water circulation velocity and large flow rate.

[0043] In this embodiment, as Figure 1 and Figure 2 As shown, it also includes a flame extinguishing exhaust 4, the inlet of which is connected to the outlet of the water inlet pipe 7, the inlet of which is connected to the outlet of the circulating water inlet channel 12, the return outlet of which is connected to the inlet of the return water pipe 8, and the outlet of which is connected to the inlet of the circulating water return channel 11.

[0044] The flame extinguishing exhaust 4 is connected to the circulating water inlet channel 12 via the water inlet pipe 7 and the circulating water return channel 11 via the return water pipe 8. This allows water from the inner edge of the pump housing to be introduced into the cooling water channel 41 of the flame extinguishing exhaust 4. The circulating water can carry away some of the heat from the flame extinguishing exhaust 4, effectively reducing the temperature at the flame extinguishing exhaust 4.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a water outlet pipe is fixed on the water outlet side of the water pump casing 1, and an internal combustion engine 3 can be connected to the pump base of the water pump casing 1. The power output shaft of the internal combustion engine 3 is connected to a centrifugal impeller.

[0046] The outlet pipe and the water inlet area of ​​the pump casing 1 form a conventional water inlet and outlet passage design for the centrifugal water pump. Single-stage or multi-stage centrifugal impellers 2 can be set to supply water or different types of internal combustion engines 3 can be selected as the power source for the centrifugal water pump according to the user's needs and customization requirements.

[0047] When designing a multi-stage centrifugal impeller 2 to be used with water supply, the circulating water return channel 11 and the circulating water inlet channel 12 can be set outside the multi-stage centrifugal impeller 2 or outside a certain stage centrifugal impeller 2, so that the water in the pump casing 1 can be introduced to the components of the pump that need to be cooled for cooling treatment.

[0048] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the air inlet of the flame extinguishing exhaust 4 is connected to the exhaust port of the internal combustion engine 3. A flame extinguishing shell 5 is fixedly provided on the inner wall of the flame extinguishing exhaust 4 near the air inlet. A through hole is fixedly provided on the outer side of the flame extinguishing shell 5, which is connected to the exhaust port of the flame extinguishing exhaust 4. A cooling water channel 41 is formed between the outer side of the flame extinguishing shell 5 and the inner side of the flame extinguishing exhaust 4. The water inlet side of the cooling water channel 41 is connected to the water outlet of the water inlet pipe 7, and the water outlet of the cooling water channel 41 is connected to the water inlet of the return water pipe 8. The outer side of the flame extinguishing shell 5 is immersed in the cooling water channel 41.

[0049] In the flame extinguishing exhaust 4, the flame extinguishing shell 5 and the flame extinguishing baffle 6 work together to guide and exhaust the exhaust gas generated by the internal combustion engine 3. The flame extinguishing shell 5 is submerged in the cooling water channel 41 to prevent the high-temperature exhaust gas emitted by the internal combustion engine 3 from heating the water pump and causing burns to the workers during the handling and relocation operations.

[0050] In this embodiment, as Figure 4 and Figure 6 As shown, a flame extinguishing baffle 6 is fixed at the air inlet of the flame extinguishing exhaust 4, and the flame extinguishing baffle 6 is installed inside the flame extinguishing housing 5.

[0051] The flame extinguishing baffle 6 and the flame extinguishing shell 5 work together to extinguish the high-temperature flue gas emitted by the internal combustion engine 3.

[0052] In this embodiment, as Figure 4 and Figure 6 As shown, the flame extinguishing housing 5 is composed of a closed housing or an open housing. The air inlet of the closed housing 5 is connected to the air inlet of the flame extinguishing exhaust 4.

[0053] Compared to the open-shell flame extinguishing shell 5, the closed-shell flame extinguishing shell 5 has a larger contact area within the cooling water flow channel 41, resulting in a better cooling effect.

[0054] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this 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 modifications and improvements 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 water pump forced circulation cooling system, characterized in that: The pump includes a pump casing (1), inside which is provided a centrifugal impeller. A circulating water inlet channel (12) is provided on the casing of the pump casing (1). The inlet of the circulating water inlet channel (12) is located close to the outlet side of the centrifugal impeller. A circulating water return channel (11) is provided in the inlet area of ​​the pump casing (1).

2. The water pump forced circulation cooling system according to claim 1, characterized in that: It also includes a flame extinguishing exhaust (4), the inlet of which is connected to the outlet of the water inlet pipe (7), the inlet of which is connected to the outlet of the circulating water inlet channel (12), the return outlet of which is connected to the inlet of the return water pipe (8), and the outlet of which is connected to the inlet of the circulating water return channel (11).

3. The water pump forced circulation cooling system according to claim 1, characterized in that: The water pump casing (1) has a water outlet pipe fixed on the water outlet side. An internal combustion engine (3) can be connected to the pump seat of the water pump casing (1). The power output shaft of the internal combustion engine (3) is connected to a centrifugal impeller.

4. The water pump forced circulation cooling system according to claim 2, characterized in that: The air inlet of the flame extinguishing exhaust (4) is connected to the exhaust port of the internal combustion engine (3). The inner wall of the flame extinguishing exhaust (4) is fixedly provided with a flame extinguishing shell (5) near the air inlet. The outer side of the flame extinguishing shell (5) is fixedly provided with a through hole, which is connected to the exhaust port of the flame extinguishing exhaust (4). A cooling water channel (41) is formed between the outer side of the flame extinguishing shell (5) and the inner side of the flame extinguishing exhaust (4). The water inlet side of the cooling water channel (41) is connected to the water outlet of the water inlet pipe (7). The water outlet of the cooling water channel (41) is connected to the water inlet of the return water pipe (8). The outer side of the flame extinguishing shell (5) is immersed in the cooling water channel (41).

5. A water pump forced circulation cooling system according to claim 2, characterized in that: A flame extinguishing baffle (6) is fixedly provided at the air inlet of the flame extinguishing exhaust (4), and the flame extinguishing baffle (6) is located inside the flame extinguishing housing (5).

6. The water pump forced circulation cooling system according to claim 4, characterized in that: The flame extinguishing housing (5) is composed of a closed housing or an open housing. The air inlet of the closed housing (5) is connected to the air inlet of the flame extinguishing exhaust (4).

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