Pump housing and hose pump

Abstract

The utility model relates to the technical field of rotor type volume pump, specifically a pump shell and hose pump, including the containing cavity in the pump shell inside, the hose access channel at the right side of pump shell, the left side outer wall of pump shell is equipped with the air duct and the air hole for the air duct and containing cavity intercommunication, still be equipped with the air outlet on the pump shell, the air hole is divided into two rows, is located the edge position of the front and back two sides of containing cavity, is equipped with two air deflector strips of the air hole export in containing cavity, and air deflector strip is used for changing the direction of wind and makes the wind direction blow to the hose, the utility model can accurately guide the flow direction of wind, and the cold wind enters into the air duct first, and the outer wall of the heating area of pump shell is cooled, then the wind enters into the inside of pump shell through the air hole and blows to the heating area on the hose through the direction of air deflector strip, realizes the inside of the heating area of pump shell and the cooling of the heating area on the hose, so as to realize the wind accurate delivery to the heating area and cool, and the heat dissipation efficiency is higher, and the energy consumption is lower.

Description

Technical Field

[0001] This utility model relates to the field of rotary positive displacement pump technology, specifically a pump casing and hose pump. Background Technology

[0002] The flexible hose pump is a type of rotary positive displacement pump that uses the peristaltic principle to extract and transport media. Its main structure includes a pump body, a compression-type rubber hose housed within the pump body, a rotor (including a pressure roller) that engages with the rubber hose, a speed reducer that drives the rotor, and a motor that powers the speed reducer. During operation, the motor drives the rotor to rotate via the speed reducer. The pressure roller on the rotor continuously compresses the rubber hose within the pump body, creating a near-vacuum state inside the hose, thus completing the transport of gaseous, solid, and liquid media through peristaltic movement. Currently, flexible hose pumps are widely used in industrial fields such as chemical, water treatment, metallurgy, mining, and construction. The rubber hose inside the pump body is a core, easily damaged component, and its condition and lifespan directly determine the applicable scenarios and operating costs of the flexible hose pump. During continuous operation of the flexible hose pump, the rotor's pressure roller and the rubber hose are constantly subjected to compression and friction, causing the rubber hose temperature to rise continuously. Especially under conditions of long-term continuous operation or conveying high-temperature media, the rubber hose temperature can easily exceed its maximum withstand operating temperature. This not only significantly shortens the service life of the rubber hose but may also cause ruptures, media leaks, and other malfunctions, ultimately damaging the flexible hose pump and affecting production continuity.

[0003] Patent application number 202120819828.5 discloses a heat dissipation device for a flexible pump. The device has a heat dissipation structure that can exchange gases inside the pump body during use and expel the heat-carrying gas inside the pump body, thereby dissipating heat from the flexible pump and preventing the flexible hose from aging due to high internal pump body temperature. However, its disadvantages are that the heat dissipation structure cannot accurately deliver air to high-temperature areas, resulting in low heat dissipation efficiency and high energy consumption. Utility Model Content

[0004] The main objective of this invention is to provide a pump housing and a flexible hose pump to solve the problems in the prior art where the heat dissipation structure of the flexible hose pump cannot accurately deliver air to high-temperature areas, resulting in low heat dissipation efficiency and high energy consumption.

[0005] To achieve the above objectives, this utility model provides a pump casing, including a receiving cavity located inside the pump casing and a hose inlet / outlet channel located on the right side of the pump casing; an air duct and an air hole for communicating the air duct with the receiving cavity are provided on the left outer wall of the pump casing; and an air outlet is also provided on the pump casing.

[0006] Furthermore, the air vents are divided into two rows, located at the front and rear edges of the receiving cavity; the receiving cavity is equipped with two air guide strips that block the air vent outlets, and the air guide strips are used to change the direction of the air so that the air blows towards the hose.

[0007] Furthermore, the air vents are multiple small holes evenly arranged along the left side of the pump casing or elongated holes set along the left side of the pump casing.

[0008] Furthermore, the cross-section of the air guide strip is circular.

[0009] Furthermore, the air outlet is located on the right side of the pump casing; the upper end of the air duct is closed, and the lower end is provided with an air inlet; a drive shaft mounting hole is provided on the rear side of the pump casing.

[0010] This utility model also provides a hose pump, including the above-mentioned pump housing, a hose and a rotor for squeezing the hose are provided inside the pump housing, the hose is close to the left inner wall of the receiving cavity, and the hose is located between two air guide strips; the air inlet of the air duct is connected to a fan, and an end cover is fixedly connected to the front side of the pump housing.

[0011] Furthermore, the rotor is driven by a speed reducer, which is driven by a motor, and a base is fixedly connected to the bottom of the pump casing.

[0012] Furthermore, it also includes a temperature sensor for detecting the temperature of the hose, the temperature sensor being electrically connected to a temperature control box, and the temperature control box being electrically connected to a fan.

[0013] The beneficial effects of this utility model are: When a hose pump is working, the part where the hose and pump casing come into contact and rub against each other is the main heat-generating area. This invention, by setting up air ducts, air holes, and air guide strips, can precisely guide the airflow. Cool air first enters the air duct to cool the outer wall of the heat-generating area of ​​the pump casing. Then, the air enters the interior of the pump casing through the air holes and is guided by the air guide strips to blow onto the heat-generating area on the hose, thereby cooling both the interior of the heat-generating area of ​​the pump casing and the heat-generating area on the hose. This achieves precise delivery of air to the heat-generating area for cooling, resulting in high heat dissipation efficiency and low energy consumption.

[0014] This invention features a circular cross-section air guide strip, which has the advantages of easy processing. The circular edge can prevent the air guide strip from damaging the hose and also provides smooth airflow guidance.

[0015] This invention, by setting up a temperature control box and a temperature sensor, can detect the temperature of the hose and automatically start the fan when the temperature is high and automatically turn off the fan when the temperature is low, thereby achieving automatic temperature control. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0017] Figure 1 This is a three-dimensional structural diagram of the pump casing in the embodiment; Figure 2 This is a front view of the pump casing in the embodiment. Figure 3 for Figure 2 Sectional view at point AA; Figure 4 This is a cross-sectional view of the small hole in the embodiment; Figure 5 This is a three-dimensional structural diagram of the pump casing in another embodiment; Figure 6 This is a schematic diagram showing the location of the hose in the embodiment; Figure 7 This is a schematic diagram showing the position of the air guide strips in the embodiment; Figure 8 This is a side view of the hose pump in the embodiment; Figure 9 This is a rear view schematic diagram of the hose pump in the embodiment; Figure 10 This is a side view of the hose pump in another embodiment; In the diagram: 1. Receiving cavity; 2. Hose inlet / outlet channel; 3. Air outlet; 4. Drive shaft mounting hole; 5. Air duct; 6. Air guide strip; 7. Small hole; 8. Long strip hole; 9. Hose; 10. Rotor; 11. Fan; 12. Motor; 13. Reducer; 14. Base; 15. Temperature sensor; 16. Temperature control box. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1 like Figures 1 to 4 As shown, a pump casing includes a receiving cavity 1 located inside the pump casing, and two hose inlet / outlet channels 2 located at the top and bottom right sides of the pump casing; an air duct 5 and an air hole for connecting the air duct 5 to the receiving cavity 1 are provided on the left outer wall of the pump casing; air in the air duct 5 is blown through the air hole to the hose in the receiving cavity 1, and the air duct 5 covers the part of the hose that is prone to heat generation; an air outlet 3 is provided on the right side of the pump casing; a protective net is installed at the air outlet 3.

[0020] The air duct 5 has an air inlet chamber inside; the upper end is closed and the lower end has an air inlet; the pump casing has a drive shaft mounting hole 4 on the rear side.

[0021] The air vents are multiple small holes 7 evenly arranged along the left side of the pump casing; the air vents are divided into two rows, such as... Figure 3 As shown, the two rows of air holes are located at the front and rear edges of the receiving cavity 1. The position of the air holes ensures that they will not be blocked when the hose is deformed under pressure; as Figure 4 The diagram shows a cross-sectional view of one row of air holes, with arrows indicating the direction of airflow. The air holes also cover the part of the hose that is prone to overheating. The cavity 1 contains two air guides 6 that block the air hole outlets. The air guides 6 are used to change the direction of the air blown out of the small holes 7 so that the air blows towards the hose. The shape of the air guides 6 can be designed as needed, as long as it can change the direction of the air blown out of the small holes 7 so that the air blows towards the hose. When a hose pump is working, the part where the hose and pump casing come into contact and rub against each other is the main heat-generating area. This invention, by setting up air ducts, air holes, and air guide strips, can precisely guide the airflow. Cool air first enters the air duct to cool the outer wall of the heat-generating area of ​​the pump casing. Then, the air enters the interior of the pump casing through the air holes and is guided by the air guide strips to blow onto the heat-generating area on the hose, thereby cooling the inner wall of the heat-generating area of ​​the pump casing and the heat-generating area on the hose. This achieves precise delivery of air to the heat-generating area for cooling, resulting in high heat dissipation efficiency and low energy consumption.

[0022] Example 2 Example 2 also provides a pump housing, which differs from the pump housing in Example 1 only in that: The cross-section of the air guide strip 6 is circular; its advantages are that it is easy to process, and the circular edge can prevent the air guide strip from damaging the hose and also provide smooth guidance for the air.

[0023] Example 3 like Figure 5 As shown, Embodiment 3 also provides a pump housing, which differs from the pump housing in Embodiment 2 only in that: The air vent is a long strip hole 8 set along the left side of the pump casing.

[0024] Example 4 like Figures 6-9 As shown, a hose pump is a vertical hose pump, including the pump casing as in Embodiment 1. The pump casing contains a hose 9 and a rotor 10 for squeezing the hose 9. The hose 9 is close to the left inner wall of the receiving cavity 1 and is located between two air guide strips 6. Air holes are located on both sides of the hose 9. The hose 9 will be deformed by the pressure roller when it is working. The position of the air holes ensures that the hose will not block the air holes when it is deformed by pressure. The air inlet of the air duct 5 is connected to the fan 11. An end cap is fixedly connected to the front side of the pump casing.

[0025] The rotor 10 is connected to a reducer 13 via a drive shaft. The drive shaft is installed in the drive shaft mounting hole 4. The reducer 13 is connected to a motor 12. The bottom of the pump casing is fixedly connected to a base 14.

[0026] Example 5 Example 5 also provides a hose pump, which differs from the hose pump in Example 4 only in that: The cross-section of the air guide strip 6 is circular; its advantages are that it is easy to process, and the circular edge can prevent the air guide strip from damaging the hose and also provide smooth guidance for the air. Figure 6 The wind direction is indicated by arrows.

[0027] Example 6 Example 6 also provides a hose pump, which differs from the hose pump in Example 5 only in that: It also includes a temperature sensor 15 for detecting the temperature of the hose 9. The temperature sensor 15 is located in the mounting hole on the inner wall of the pump housing and is close to the center of the heating area on the hose 9. The temperature sensor 15 is electrically connected to the temperature control box 16, and the temperature control box 16 is electrically connected to a fan 11, which is a DF series fan.

[0028] By setting up a temperature control box and temperature sensor, the temperature of the hose can be detected, and the fan can be automatically started when the temperature is high and automatically turned off when the temperature is low, thus achieving automatic temperature control.

[0029] Example 7 Example 7 also provides a hose pump, which differs from the hose pump in Example 6 only in that: The air vent is a long strip hole 8 set along the left side of the pump casing.

[0030] Example 8 like Figure 10 As shown, Embodiment 8 also provides a hose pump, which differs from the hose pump in Embodiment 7 only in that: The hose pump is a horizontal hose pump.

[0031] When the hose pump is working, the part where the hose and the pump casing come into contact and rub against each other is the main heat-generating area. During the operation of the hose pump in the above embodiments 4-8, the cooling airflow enters the air inlet cavity of the air duct 5 from the air inlet of the air duct 5 to cool the outer wall of the heat-generating area of ​​the pump casing. After being guided by the air inlet cavity, it enters the receiving cavity 1 through the air holes on both sides of the pump body. The cooling airflow entering the receiving cavity 1 changes direction under the guidance of the air guide strip 6 and flows directly to the heat-generating area on the surface of the hose 9 in the working state, thereby cooling the inner wall of the heat-generating area of ​​the pump casing and the heat-generating area on the hose. After completing the heat exchange, the airflow is discharged from the pump casing from the preset air outlet 3 of the pump body, forming a complete air-cooled heat dissipation cycle.

[0032] The beneficial effects of the above embodiments include: (1) High heat dissipation efficiency: Through the combination of air ducts and air holes, the cooling airflow is evenly distributed. Combined with the directional guidance of the air guide strip, the cooling airflow directly acts on the heat-generating core component (rubber hose), which greatly improves the heat exchange efficiency and effectively controls the working temperature of the rubber hose. (2) Extend the life of components: avoid problems such as accelerated aging and cracking of hoses due to overheating, significantly extend the replacement cycle of hoses, reduce pump failures caused by hose damage, and reduce equipment operation and maintenance costs. (3) Expanding the application scenarios: With its efficient heat dissipation capability, the hose pump can stably adapt to long-term continuous working conditions and high-temperature medium transportation conditions, breaking through the application scenario limitations of traditional hose pumps. (4) Simple and reliable structure: The overall heat dissipation structure is achieved through simple components such as air ducts, air holes and air guide strips. It does not require a complex refrigeration system, has low manufacturing cost, is easy to install and maintain, and is compatible with the structural modification needs of existing hose pumps.

[0033] The cooling speed of the hose pumps in Examples 4-8 above was tested. At a room temperature of 20°C and a hose temperature of 40°C, the fan was started to cool the hose at a speed of 4 meters per second. It was measured that the temperature dropped by 10-15°C after the fan worked for 10 minutes. The higher the hose temperature, the more obvious the cooling effect. The higher the wind speed, the more obvious the cooling effect.

[0034] The hose pumps in Examples 4-8 above can maintain the hose at a temperature below 50°C during operation; while the operating temperature of existing hose pumps is typically 50°C-80°C; the hose life of the hose pumps in Examples 4-8 above is 1.1-2 times that of existing hose pumps.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pump casing, comprising a receiving cavity (1) located inside the pump casing, and a hose inlet / outlet channel (2) located on the right side of the pump casing; characterized in that, The pump casing is provided with an air duct (5) and an air hole for connecting the air duct (5) with the receiving cavity (1) on the left outer wall; the pump casing is also provided with an air outlet (3).

2. The pump casing as described in claim 1, characterized in that, The air holes are divided into two rows and are located at the front and rear edges of the receiving cavity (1); the receiving cavity (1) is provided with two air guide strips (6) that block the air hole outlet. The air guide strips (6) are used to change the direction of the wind so that the wind blows towards the hose.

3. The pump casing as described in claim 2, characterized in that, The air vents are multiple small holes (7) evenly arranged along the left side of the pump casing or elongated holes (8) set along the left side of the pump casing.

4. The pump casing as described in claim 2, characterized in that, The cross-section of the air guide strip (6) is circular.

5. The pump casing as described in claim 1, characterized in that, The air outlet (3) is located on the right side of the pump casing; the upper end of the air duct (5) is closed and the lower end is provided with an air inlet; the rear side of the pump casing is provided with a drive shaft mounting hole (4).

6. A hose pump, characterized in that, The pump housing includes the pump housing as described in claim 1, wherein a hose (9) and a rotor (10) for squeezing the hose (9) are provided inside the pump housing, the hose (9) is close to the left inner wall of the receiving cavity (1), and the hose (9) is located between two air guide strips (6); the air inlet of the air duct (5) is connected to a fan (11), and an end cap is fixedly connected to the front side of the pump housing.

7. The hose pump as claimed in claim 6, characterized in that, The rotor (10) is driven by a speed reducer (13), the speed reducer (13) is driven by a motor (12), and the bottom of the pump casing is fixedly connected to a base (14).

8. The hose pump as described in claim 6, characterized in that, It also includes a temperature sensor (15) for detecting the temperature of the hose (9), the temperature sensor (15) being electrically connected to a temperature control box (16), the temperature control box (16) being electrically connected to a fan (11).

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