Water cooling pump shell and water pump with same

Abstract

The water cooling pump shell comprises a pump shell body, the pump shell body is provided with a plurality of hydraulic chambers, the hydraulic chambers are located in the middle of the pump shell body, one ends of the hydraulic chambers are evenly distributed in the circumferential direction of the pump shell body, and the other ends of the hydraulic chambers point to the central axis of the pump shell body. Water flow channels are formed in the positions, located on the left sides and the right sides of the hydraulic chambers, of the pump shell body, the two water flow channels located on the left side and the right side of the same hydraulic chamber do not communicate with the hydraulic chambers correspondingly, and annular cooling water ways are arranged at the left end and the right end of the pump shell body correspondingly. The water flow channels located on the left side and the right side of the hydraulic chamber communicate with the cooling water ways located at the left end and the right end of the pump shell body correspondingly, and the pump shell body is provided with a water inlet and a water outlet which communicate with the two cooling water ways correspondingly. According to the water pump, no extra cooling component is needed, the water pump can meet the working requirement of the water pump, meanwhile, the cooling function is achieved, the structure is more compact, more space does not need to be occupied, and cost is lower.

Description

Technical Field

[0001] The invention relates to the technical field of diaphragm pumps, and in particular to a water-cooled pump casing and a water pump having the pump casing. Background Art

[0002] The diaphragm pump is a type of positive displacement pump that uses a diaphragm to separate the liquid being transported from the piston and uses the fluctuation of the diaphragm to achieve the suction and discharge of the liquid. The inner cavity of the shell is divided into a volume cavity and a piston cavity by the diaphragm. Diaphragm pumps are mainly divided into plunger diaphragm pumps, hydraulic diaphragm pumps and pneumatic diaphragm pumps. Regardless of the type of power diaphragm pump, the diaphragm is one of the important components. The parameters such as the fluctuation stroke and life of the diaphragm affect the corresponding characteristics of the diaphragm pump. For the plunger diaphragm pump, the piston drives the diaphragm to fluctuate up and down. When the piston moves downward, it pulls the diaphragm to increase the volume of the volume cavity to absorb the liquid. When the piston moves upward, it pushes the diaphragm to reduce the volume of the volume cavity to pressurize and discharge the sucked liquid. The diaphragm pump itself generates heat during operation. The heat mostly comes from two aspects. One is the heat generated by the rotation of the eccentric shaft in the center of the diaphragm pump, and the other is the friction heat between the piston and the cylinder wall of the diaphragm pump. When the outlet pressure of the diaphragm pump is less than or equal to 4MPa, the self-generated heat temperature of the diaphragm pump is about 50-60℃. The normal working temperature of the diaphragm pump can be guaranteed by natural cooling to avoid overheating. When the outlet pressure of the diaphragm pump is greater than or equal to 5MPa, the self-generated heat temperature of the diaphragm pump is greater than 100℃, or even as high as 200℃. At this time, additional cooling equipment is required to cool the diaphragm pump to avoid overheating. The diaphragm pump in the prior art is a large-volume, high-power diaphragm pump with a flow rate of up to 30m 3 / h, and the weight can reach 3 to 4 tons. This type of diaphragm pump has a large oil tank and a large heat dissipation area. It can meet the operating temperature requirements by relying on its own natural heat dissipation. There is also a small diaphragm pump with a flow rate of about 10m 3 / h, weighs about 1 ton. This type of diaphragm pump has a small flow rate and low power, and can meet the operating temperature requirements without cooling.

[0003] However, for a diaphragm pump with a small volume but high power, it does not have good natural heat dissipation conditions by itself, and needs to rely on additional cooling components to cool it down to meet the use temperature requirements. The additional cooling components will increase the pipeline of the diaphragm pump, increase the cost of the diaphragm pump and occupy more space. In view of this, the present invention provides a water-cooled pump housing and a water pump with the pump housing, which does not require additional cooling equipment and does not occupy more space, and is more suitable for the heat dissipation of a diaphragm pump with a small volume and high power. Summary of the invention

[0004] The present invention intends to provide a water-cooled pump casing and a water pump having the pump casing to solve the deficiencies in the prior art. The technical problem to be solved by the present invention is achieved through the following technical solutions.

[0005] A water-cooled pump casing comprises a pump casing body, a plurality of platforms are evenly spaced on the outer circumferential surface of the pump casing body, a plurality of hydraulic chambers are arranged on the platforms, the hydraulic chambers are located in the middle of the pump casing body, one end of the hydraulic chambers is evenly distributed along the circumferential direction of the pump casing body, and the other end points to the central axis of the pump casing body, the axis of the hydraulic chambers coincides with the radial direction of the pump casing body, the positions on the platforms located on the left and right sides of the hydraulic chambers are respectively provided with water flow channels, the two water flow channels located on the same platform are not connected to the hydraulic chambers between the two, and the left and right ends of the pump casing body are respectively provided with water flow channels. Annular cooling water channels are separately provided, and the two cooling water channels are independent of each other. The water flow channel located on the left side of the hydraulic chamber is connected to the cooling water channel located at the left end of the pump casing body, and the water flow channel located on the right side of the hydraulic chamber is connected to the cooling water channel located at the right end of the pump casing body. A water inlet connected to one of the cooling water channels and a water outlet connected to the other cooling water channel are provided on the pump casing body. Sinks are provided at the left and right ends of the pump casing body between two adjacent platforms. The position of the sink matches the position of the cooling water channel, and the water inlet and the water outlet are provided on the sink.

[0006] Preferably, the platform matches the gland to be assembled.

[0007] Preferably, according to the water-cooled pump casing according to the claim, it is characterized in that: a pressure gauge mounting hole connected to the cooling water path is provided on the sink platform, and the pressure gauge mounting hole is used to install a pressure gauge.

[0008] Preferably, a safety valve installation hole connected to the cooling water circuit is provided on the sink platform, and the safety valve installation hole is used for installing an overpressure safety valve.

[0009] The present invention also provides a water pump, the improvement of which lies in that it comprises a water-cooled pump casing as described in any one of the above.

[0010] Preferably, the outer seals of each hydraulic chamber of the pump housing body are covered with a pressure cover, and the pressure cover also covers the water flow channels on both sides of the hydraulic chamber. After the pressure cover and the hydraulic chamber are covered with each other, the water flow channels on both sides of the hydraulic chamber are respectively connected to the hydraulic chamber.

[0011] Preferably, a connecting cavity is provided in the middle of the inner side of the pressure cover, and the connecting cavity matches the hydraulic chamber. A water inlet cavity and a water outlet cavity are respectively provided at the left and right ends of the inner side of the pressure cover, and the water inlet cavity and the water outlet cavity are respectively connected with the connecting cavity.

[0012] Preferably, the diameter of the water inlet cavity is larger than the diameter of the water outlet cavity.

[0013] In the present invention, an axial cavity for installing an eccentric shaft is provided at the center position of the pump casing body, and one end of the hydraulic chamber close to the axis of the pump casing body is connected to the axial cavity. The hydraulic chamber is used to install structures such as a piston cylinder, a piston, and a diaphragm. The shape and size of the platform on the pump casing body match the shape and size of the inner side of the pressure cover. The pressure cover is installed on the platform and is sealed with the outside of the hydraulic chamber and the water flow channels on both sides of the hydraulic chamber. After covering, the water flow channel on the left side of the hydraulic chamber is connected with the connecting cavity through the water outlet cavity, thereby being connected to the hydraulic chamber, and is connected to the water flow channel on the right side of the hydraulic chamber through the water inlet cavity. The two cooling water paths at both ends of the pump casing body are respectively connected to the water flow channels at both ends of the hydraulic chamber. When the water pump is working, the heat generated by the rotation of the eccentric shaft and the operation of the piston in the hydraulic chamber is transferred to the pump casing body. Cooling water is placed in two annular cooling water channels, one of which serves as an inlet channel and the other as an outlet channel. Water from the outside source passes into the inlet channel through the water inlet. The piston in the hydraulic chamber works to suck the water in the inlet channel into the hydraulic chamber through the water flow channel. Then, as the piston works, the water in the hydraulic chamber is compressed and pressed into the outlet channel through another water flow channel and finally discharged from the outlet. At the same time, the water flows around the pump casing body along the two annular cooling water channels to dissipate the heat of the pump casing body.

[0014] The present invention provides a water-cooled pump casing and a water pump having the pump casing. A cooling water path is arranged on the structure of the pump casing body itself, and is connected to the hydraulic chamber through a pressure cover with a special structure. The working water of the water pump itself is used as cooling water for cooling the pump casing body. No additional cooling components are required. The water pump can meet its own working requirements while also realizing the cooling function of the water pump. The structure is more compact, does not need to occupy more space, and effectively reduces the cost required for the heat dissipation of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the water-cooled pump casing in the present invention;

[0016] Figure 2 It is a schematic structural diagram of the water-cooling pump housing in the present invention from another angle;

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure in the direction of A;

[0018] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the B direction;

[0019] Figure 5 It is a schematic diagram of the structure of the gland in the present invention;

[0020] Figure 6 It is a schematic diagram of the bottom surface structure of the gland in the present invention;

[0021] Figure 7 It is a schematic diagram of the cross-sectional structure of the gland in the present invention;

[0022] Figure 8 It is a schematic diagram of the structure of the water pump in the present invention;

[0023] Fig. 9 It is a schematic structural diagram of the water pump in the present invention from another angle;

[0024] The reference numerals in the accompanying drawings are: 1. pump casing body, 11. hydraulic chamber, 12. water flow channel, 13. cooling water channel, 14. water inlet, 15. water outlet, 16. platform, 17. pressure gauge mounting hole, 18. safety valve mounting hole, 19. sinker, 2. gland, 21. water inlet chamber, 22. water outlet chamber, 23. connecting chamber. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Embodiment 1:

[0027] A water-cooled pump casing, the improvement of which is that: it includes a pump casing body 1, the pump casing body 1 is provided with a plurality of hydraulic chambers 11, the hydraulic chambers 11 are located in the middle of the pump casing body 1 and one end is evenly distributed along the circumferential direction of the pump casing body 1, and the other end points to the central axis of the pump casing body 1, the axis of the hydraulic chamber 11 coincides with the radial direction of the pump casing body 1, the pump casing body 1 is provided with water flow channels 12 on the left and right sides of the hydraulic chamber 11, and the two water flow channels 12 on the left and right sides of the same hydraulic chamber 11 are respectively The left and right ends of the pump casing body 1 are respectively provided with annular cooling water paths 13, and the two cooling water paths 13 are independent of each other. The water flow channel 12 located on the left side of the hydraulic chamber 11 is connected to the cooling water path 13 located at the left end of the pump casing body 1, and the water flow channel 12 located on the right side of the hydraulic chamber 11 is connected to the cooling water path 13 located at the right end of the pump casing body 1. The pump casing body 1 is provided with a water inlet 14 connected to one of the cooling water paths 13 and a water outlet 15 connected to the other cooling water path 13.

[0028] In this embodiment, refer to Figures 1 to 9As shown, an axial cavity for installing an eccentric shaft is provided at the center of the pump casing body 1, and one end of the hydraulic chamber 11 close to the axis of the pump casing body 1 is connected to the axial cavity. The hydraulic chamber 11 is used to install structures such as a piston cylinder, a piston, and a diaphragm. Each hydraulic chamber 11 and the water flow channels 12 on both sides thereof are sealed with a gland 2 on the outside. After covering, the water flow channels 12 on both sides are respectively connected to the hydraulic chamber 11 through the gland 2, and the two cooling water paths 13 at both ends of the pump casing body 1 are respectively connected to the water flow channels 12 at both ends of the hydraulic chamber 11, and the two cooling water paths 13 are respectively connected to the hydraulic chamber 11 through the water flow channels 12 at both ends. When the water pump is working, the heat generated by the rotation of the eccentric shaft and the operation of the piston in the hydraulic chamber 11 is transferred to the pump casing body 1. The two annular cooling water paths 13 are filled with cooling water, one of which is used as an inlet path and the other as an outlet path. The external water source introduces water into the inlet path through the water inlet 14. The piston in the hydraulic chamber 11 works to suck the water in the inlet path into the hydraulic chamber 11 through the water flow channel. Then, as the piston works, the water in the hydraulic chamber 11 is compressed and pressed into the outlet path through another water flow channel, and finally discharged from the water outlet 15. At the same time, the water flows around the pump casing body 1 along the two annular cooling water paths to dissipate heat from the pump casing body 1.

[0029] A water-cooled pump casing provided in this embodiment is provided with a cooling water path 13 on the structure of the pump casing body 1 itself, and connected with the hydraulic chamber 11, so that the working water of the water pump itself is used as the cooling water of the water pump to cool the pump casing body 1, without the need for additional cooling components, so that the water pump can meet its own working requirements while also realizing the cooling function of the water pump, the structure is more compact, does not need to occupy more space, and effectively reduces the cost required for the heat dissipation of the water pump.

[0030] Furthermore, a plurality of platforms 16 are provided on the outer circumferential surface of the pump casing body 1, and the platforms 16 are evenly distributed along the circumference of the pump casing body 1, the hydraulic chamber 11 and the water flow channel 12 are provided on the platforms 16, and the platforms 16 match the gland 2 to be assembled.

[0031] In this embodiment, the platform 16 is provided to facilitate the subsequent sealing of the pressure cover 2 .

[0032] Furthermore, a pressure gauge mounting hole 17 connected to the cooling water path 13 is provided on the pump housing body 1, and the pressure gauge mounting hole 17 is used for mounting a pressure gauge.

[0033] Furthermore, a sink 19 is provided on the outer circumferential surface of the pump housing body 1 , and the pressure gauge mounting hole 17 is provided on the sink 19 and communicated with the cooling water path 13 .

[0034] Furthermore, a safety valve mounting hole 18 connected to the cooling water path 13 is provided on the pump housing body 1, and the safety valve mounting hole 18 is used for mounting an overpressure safety valve.

[0035] Furthermore, a sink 19 is provided on the outer circumferential surface of the pump housing body 1 , and the safety valve mounting hole 18 is provided on the sink 19 and communicated with the cooling water path 13 .

[0036] In this embodiment, the arrangement of the sink 19 makes it easier to install the pressure gauge and the overpressure safety valve.

[0037] Furthermore, the sink 19 is arranged on the left and right sides of the outer circumference of the pump casing body 1 and is located between two adjacent platforms 16. The number of the pressure gauge mounting holes 17 is two and they are respectively arranged on the two platforms 16 at the left and right ends of the same busbar direction of the outer circumference of the pump casing body 1. The number of the safety valve mounting holes 18 is two and they are respectively arranged on the two platforms at the left and right ends of the same busbar direction of the outer circumference of the pump casing body 1.

[0038] Embodiment 2:

[0039] A water pump, the improvement of which lies in: comprising a water-cooled pump casing as described in Example 1.

[0040] Furthermore, the outer seals of each hydraulic chamber 11 of the pump housing body 1 are covered with a pressure cover 2, and the pressure cover 2 also covers the water flow channels 12 on both sides of the hydraulic chamber 11. After the pressure cover 2 and the hydraulic chamber 11 are covered with each other, the water flow channels 12 on both sides of the hydraulic chamber 11 are respectively connected to the hydraulic chamber 11.

[0041] Furthermore, a connecting chamber 23 is provided in the middle of the inner side of the pressure cover 2, and the connecting chamber 23 matches the hydraulic chamber 11. A water inlet chamber 21 and a water outlet chamber 22 are respectively provided at the left and right ends of the inner side of the pressure cover 2, and the water inlet chamber 21 and the water outlet chamber 22 are respectively connected to the connecting chamber 23.

[0042] In this embodiment, refer to Figures 1 to 9As shown, an axial cavity for installing an eccentric shaft is provided at the center of the pump casing body 1, and one end of the hydraulic chamber 11 close to the axis of the pump casing body 1 is connected to the axial cavity. The hydraulic chamber 11 is used to install structures such as a piston cylinder, a piston, and a diaphragm. The shape and size of the platform 16 on the pump casing body 1 match the shape and size of the inner side of the gland 2. The gland 2 is installed on the platform 16 and is sealed with the hydraulic chamber 11 and the water flow channels 12 on both sides thereof. After covering, the water flow channel on the left side of the hydraulic chamber 11 is connected with the connecting cavity 23 through the water outlet cavity 22, thereby being connected to the hydraulic chamber 11, and is connected to the water flow channel on the right side of the hydraulic chamber 11 through the water inlet cavity 21. The two cooling water paths 13 at both ends of the pump casing body 1 are respectively connected with the water flow channels 12 at both ends of the hydraulic chamber 11. When the water pump is working, the heat generated by the rotation of the eccentric shaft and the operation of the piston in the hydraulic chamber 11 is transferred to the pump casing body 1. The two annular cooling water paths 13 are filled with cooling water, one of which is used as an inlet path and the other as an outlet path. The external water source introduces water into the inlet path through the water inlet 14. The piston in the hydraulic chamber 11 works to suck the water in the inlet path into the hydraulic chamber 11 through the water flow channel. Then, as the piston works, the water in the hydraulic chamber 11 is compressed and pressed into the outlet path through another water flow channel, and finally discharged from the water outlet 15. At the same time, the water flows around the pump casing body 1 along the two annular cooling water paths to dissipate heat from the pump casing body 1.

[0043] A water pump provided in this embodiment has a cooling water path 13 arranged on the structure of the pump casing body 1, and connects it with the hydraulic chamber 11 through a pressure cover 2 with a special structure, so that the working water of the water pump itself is used as the cooling water of the water pump to cool the pump casing body 1, without the need for additional cooling components, so that the water pump can meet its own working requirements while also realizing the cooling function of the water pump, has a more compact structure, does not need to occupy more space, and effectively reduces the cost required for the heat dissipation of the water pump.

[0044] Furthermore, the diameter of the water inlet chamber 21 is greater than the diameter of the water outlet chamber 22 .

[0045] It should be noted that the above detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present application belongs.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described in the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0048] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0049] For ease of description, spatially relative terms, such as "above", "above", "on the upper surface of", "above", etc., may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0050] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water-cooled pump housing, characterized in that: The invention comprises a pump casing body (1), wherein a plurality of platforms (16) are evenly spaced on the outer circumferential surface of the pump casing body (1), and a plurality of hydraulic chambers (11) are arranged on the platform (16). The hydraulic chambers (11) are located in the middle of the pump casing body (1), and one end of the hydraulic chambers (11) is evenly distributed along the circumferential direction of the pump casing body (1), and the other end points to the central axis of the pump casing body (1). The axis of the hydraulic chamber (11) coincides with the radial direction of the pump casing body (1). The platform (16) is provided with water flow channels (12) at positions on the left and right sides of the hydraulic chamber (11), and the two water flow channels (12) located on the same platform (16) are not connected to the hydraulic chamber (11) between the two. The left and right ends of the pump casing body (1) are provided with annular cooling water paths (13) respectively. The two cooling water paths (13) are independent of each other. The water flow channel (12) located on the left side of the hydraulic chamber (11) is connected to the cooling water path (13) located at the left end of the pump casing body (1), and the water flow channel (12) located on the right side of the hydraulic chamber (11) is connected to the cooling water path (13) located at the right end of the pump casing body (1). The pump casing body (1) is provided with a water inlet (14) connected to one of the cooling water paths (13) and a water outlet (15) connected to the other cooling water path (13). The left and right ends of the pump casing body (1) are provided with a sinking platform (19) located between two adjacent platforms (16). The position of the sinking platform (19) matches the position of the cooling water path (13). The water inlet (14) and the water outlet (15) are provided on the sinking platform (19).

2. A water-cooled pump casing according to claim 1, characterized in that: The platform (16) matches the gland (2) to be assembled.

3. The water-cooled pump housing according to claim 1, characterized in that: The sink (19) is provided with a pressure gauge installation hole (17) which is connected to the cooling water path (13), and the pressure gauge installation hole (17) is used to install a pressure gauge.

4. The water-cooled pump housing according to claim 1, characterized in that: The sink (19) is provided with a safety valve installation hole (18) which is connected to the cooling water circuit (13), and the safety valve installation hole (18) is used for installing an overpressure safety valve.

5. A water pump, characterized in that: It comprises a water-cooled pump casing as described in any one of claims 1 to 4.

6. A water pump according to claim 5, characterized in that: The outer seals of each hydraulic chamber (11) of the pump housing body (1) are covered with a gland (2), and the gland (2) also covers the water flow channels (12) on both sides of the hydraulic chamber (11). After the gland (2) and the hydraulic chamber (11) are covered with each other, the water flow channels (12) on both sides of the hydraulic chamber (11) are respectively connected to the hydraulic chamber (11).

7. A water pump according to claim 6, characterized in that: A connecting chamber (23) is provided in the middle of the inner side of the gland (2), and the connecting chamber (23) matches the hydraulic chamber (11). A water inlet chamber (21) and a water outlet chamber (22) are provided at the left and right ends of the inner side of the gland (2), respectively, and the water inlet chamber (21) and the water outlet chamber (22) are respectively connected to the connecting chamber (23).

8. A water pump according to claim 7, characterized in that: The diameter of the water inlet cavity (21) is greater than the diameter of the water outlet cavity (22).

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