Pump cover and hot water circulating pump

Abstract

The utility model belongs to the technical field of circulating pumps, and particularly relates to a pump cover and a hot water circulating pump, which comprise a main body, a boss arranged on the inner side, a mounting through hole arranged on the end face of the boss, an inclined plane arranged on the top of the boss, and a water inlet hole and a water outlet hole arranged on the inclined plane; the supporting block is fixedly arranged in the mounting through hole and is provided with a shaft hole; wherein the periphery of the supporting block is provided with a plurality of flowing ring grooves which are axially arranged at intervals, the flowing ring grooves located on the two sides are communicated with the water inlet hole and the water outlet hole respectively, the adjacent flowing ring grooves are communicated through notches, and the multiple notches are alternately arranged up and down. The square-wave-shaped flow path is formed, the flow path is greatly lengthened, the heat exchange area is increased, the heat exchange efficiency is improved, the cooling effect is enhanced, an inner cavity structure can be prevented from being directly formed in the mode that the square-wave-shaped flow path and the square-wave-shaped flow path are independently machined and then fixed, and therefore the casting difficulty is reduced, the yield is increased, and the production efficiency is improved. And the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to circulating pump technical field, concretely relates to a pump cover and hot water circulating pump. BACKGROUND

[0002] In metallurgy, power station, chemical industry and waste heat and energy recycling and so on many industrial fields, usually need to help hot water circulating pump to realize the effective delivery and circulation of high temperature medium in system pipeline or closed loop, which aims to ensure that high temperature medium can flow stably and continuously in each system to meet the specific needs in industrial production process.

[0003] Hot water circulating pump transports high temperature medium, which can make the temperature of the mechanical seal higher, resulting in accelerated aging, thereby greatly shortening the service life, for this problem, the prior art is to directly open a water cooling cavity on the pump cover, and then cool by water cooling.

[0004] But the above technical scheme still has the technical problems of low heat exchange efficiency and difficult production and processing, cannot sufficiently cool the mechanical seal, and has high production cost, and cannot meet the actual application requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pump cover and hot water circulating pump, which solves the technical problems of low heat exchange efficiency and difficult production and processing in the prior art.

[0006] In a first aspect, the utility model discloses a pump cover, which comprises:

[0007] A main body has a boss on the inner side, an installation through hole is formed in the end face of the boss, the top of the boss has an inclined surface, and the inclined surface is provided with a water inlet hole and a water outlet hole which are in communication with the installation through hole;

[0008] A support block is fixedly arranged in the installation through hole and is provided with a shaft hole arranged coaxially, and the outer periphery of the support block is tightly combined with the inner periphery of the installation through hole;

[0009] Among them, the outer periphery of the support block is provided with a plurality of flow ring grooves arranged axially at intervals, the flow ring grooves on both sides correspond to the water inlet hole and the water outlet hole respectively, the adjacent flow ring grooves are connected through notches, and the notches are arranged alternately up and down.

[0010] The application sets multiple axially spaced flow ring grooves, which are connected through the upper and lower alternating notches, thereby forming a square wave-shaped flow path, which greatly lengthens the flow path in a limited volume, increases the heat exchange area, thereby improving the heat exchange efficiency and enhancing the cooling effect, and has the characteristics of simple and compact structure, facilitating production and processing.

[0011] Based on the above technical solutions, the application can be further improved as follows:

[0012] Preferably, an embedded ring groove is formed on the outer side of the main body, the embedded ring groove is coaxially arranged with and communicated with the mounting through hole, and the support block has a positioning ring matched with the embedded ring groove. By adopting the application, the positioning effect is achieved, the support block can be installed at the predetermined position, assembly errors are avoided, the yield is improved, and the sealing surface is increased to improve the sealing effect.

[0013] Preferably, a second-order ring groove is formed on the outer end face of the support block, and the second-order ring groove is coaxially arranged with and communicated with the shaft hole. By adopting the application, the throat bushing can be embeddedly installed on the outer end face of the support block, and the installation stability and structural compactness are improved.

[0014] Preferably, a limiting ring groove is formed on the end face of the boss, and the limiting ring groove is coaxially arranged with and communicated with the mounting through hole. By adopting the application, the butt joint with the mechanical seal can be completed, the positioning effect is achieved, and the stability of the mechanical seal installation is improved.

[0015] Preferably, a plurality of threaded holes arranged around the mounting through hole are formed on the end face of the boss. By adopting the application, the assembly efficiency is improved, and the installation stability is ensured.

[0016] Preferably, a material-reducing ring groove is arranged on the inner side of the main body and around the boss. By adopting the application, the material amount is reduced while the structural strength is ensured, and the production cost is reduced.

[0017] Preferably, the main body has a butt joint ring, and a plurality of bolt through holes are formed in the butt joint ring. By adopting the application, the main body and the pump body can be conveniently installed and fixed, the connection is stable, the disassembly and assembly are convenient, the processing is easy, and the use effect is good.

[0018] In a second aspect, the utility model discloses a hot water circulating pump, which comprises the pump cover of any one of the above.

[0019] Through the above technical solutions, the utility model has the following beneficial effects:

[0020] 1. The application sets an inclined surface on the top of the boss, and sets the water inlet hole and the water outlet hole on the inclined surface, which reduces the processing difficulty, lengthens the flow path, improves the cooling efficiency, facilitates the arrangement of the infusion pipeline, improves the compactness of the structure, and facilitates maintenance and repair;

[0021] 2. The application sets a plurality of flow ring grooves arranged axially, and communicates through the upper and lower alternating notches, thereby forming a square wave-shaped flow path, which greatly lengthens the flow path in a limited volume, increases the heat exchange area, thereby improving the heat exchange efficiency and enhancing the cooling effect, and has the characteristics of simple and compact structure, facilitating production and processing;

[0022] 3. The application processes the main body and the supporting block separately, and then fixes them together, which can avoid directly forming an inner cavity structure, thereby reducing the casting difficulty, improving the yield, improving the production efficiency, and reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 The structure diagram of the pump cover described in the specific embodiments of the present application;

[0025] Figure 2 The cross-sectional view of the main body in the pump cover shown in Figure 1

[0026] Figure 3 The cross-sectional view of the supporting block in the pump cover shown in Figure 1

[0027] Figure 4 The assembly diagram of the pump cover shown in Figure 1

[0028] Explanation of reference signs:

[0029] 1, main body; 11, boss; 12, mounting through hole; 13, inclined surface; 14, water inlet hole; 15, water outlet hole; 16, embedded ring groove; 17, limiting ring groove; 18, threaded hole; 19, material reducing ring groove; 110, butt joint ring; 111, bolt through hole;

[0030] ​​​2. Support block; 21. Shaft hole; 22. Flow annular groove; 23. Notch; 24. Positioning ring; 25. Second-order annular groove. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of the pump cover and components in the hot water circulation pump. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0035] Example:

[0036] like Figures 1 to 3 As shown in the figure, this application discloses a pump cover for providing support and cooling the mechanical seal. Its specific structure includes: a main body 1 and a support block 2.

[0037] The inner side of the main body 1 has a boss 11 to improve the structural strength; the end face of the boss 11 has a mounting through hole 12 for mounting the support block 2 and for docking and inserting with the mechanical seal; the top of the boss 11 has an inclined surface 13 to facilitate the installation and arrangement of the water pipe joint; the inclined surface 13 has an inlet hole 14 and an outlet hole 15 connected to the mounting through hole 12, forming a channel for fluid to enter and leave the pump cover.

[0038] The support block 2 is fixed in the mounting through hole 12, and is provided with an axial hole 21 coaxially arranged for mounting a pump shaft and a mechanical seal, and the outer periphery of the support block 2 is tightly combined with the inner periphery of the mounting through hole 12, so that fluid cannot leak from the space between the support block 2 and the mounting through hole 12, and the sealing effect is improved.

[0039] The outer periphery of the support block 2 is provided with a plurality of flow ring grooves 22 arranged at intervals in the axial direction, the flow ring grooves 22 at both sides correspond to the water inlet hole 14 and the water outlet hole 15 respectively, so that fluid can smoothly enter and exit, and the adjacent flow ring grooves 22 are connected through the notches 23 arranged alternately in the up-down direction, so that the flow channels are formed.

[0040] Preferably, the mounting through hole 12 is in a circular hole structure, so that the mounting of the support block 2 is facilitated, and the circumference of the flow ring groove 22 is increased, the surface area of the flow channel is enlarged, and the heat exchange efficiency is improved.

[0041] Exemplarily, the support block 2 is fixed in the mounting through hole 12 by welding, which is stable in connection and simple in operation, but is not limited thereto.

[0042] The above technical solution has the following working principle:

[0043] In the production process, the main body 1 and the support block 2 are separately and individually processed, and then the support block 2 is inserted into the mounting through hole 12 and welded and fixed; in the processing, the main body 1 and the support block 2 are relatively easy to cast because they do not have an inner cavity structure, so that the yield is improved, the production efficiency is improved, and the production cost is reduced.

[0044] After the manufacturing is completed, the flow ring grooves 22 are closed by the inner periphery of the axial hole 21, so that the annular flow channels are formed, the annular flow channels are connected through the notches 23 arranged alternately in the up-down direction, so that the flow path is formed, and the flow path enables the fluid to flow in the "square wave" up-down return mode in the axial direction.

[0045] The utility model discloses a plurality of flow ring grooves 22 arranged at intervals in the axial direction are arranged, and the notches 23 arranged alternately in the up-down direction are connected, so that the square wave flow path is formed, the flow path is greatly lengthened in the limited volume, the heat exchange area is increased, the heat exchange efficiency is improved, the cooling effect is enhanced, and the structure is simple and compact, so that the production and processing are facilitated.

[0046] The utility model discloses a plurality of flow ring grooves 22 arranged at intervals in the axial direction are arranged, and the notches 23 arranged alternately in the up-down direction are connected, so that the square wave flow path is formed, the flow path is greatly lengthened in the limited volume, the heat exchange area is increased, the heat exchange efficiency is improved, the cooling effect is enhanced, and the structure is simple and compact, so that the production and processing are facilitated.

[0047] The utility model discloses a body 1 and support block 2 are separately processed, and finally the two are fixed together, can avoid directly forming the inner cavity structure to reduce the casting difficulty, improve the yield, improve production efficiency, and reduce production cost.

[0048] In some embodiments, as shown in Figure 2 And Figure 3 The body 1 outside is provided with embedding ring groove 16, embedding ring groove 16 is coaxial with installation through -hole 12 and is linked together, and the outer periphery of support block 2 has the positioning ring 24 that is suitable for embedding ring groove 16.

[0049] Preferably, the outer periphery of embedding ring groove 16 and positioning ring 24 is circular, facilitating installation and fixation, but not limited thereto, and can also be square or other shapes, without limitation.

[0050] Through the above setting, the positioning effect is achieved, the support block 2 can be installed at the predetermined position in the installation through -hole 12, thereby avoiding the occurrence of assembly error, improving the yield, and increasing the sealing surface between the body 1 and the support block 2, and improving the sealing effect.

[0051] In some embodiments, as shown in Figure 3 And Figure 4 The outer end surface of support block 2 is provided with two-stage ring groove 25, and the two-stage ring groove 25 is coaxial with shaft hole 21 and is connected.

[0052] By setting two-stage ring groove 25, the throat bushing can be embeddedly installed on the outer end surface of support block 2, improving the installation stability and structural compactness.

[0053] In some embodiments, as shown in Figure 2 And Figure 4 The end surface of boss 11 is provided with limiting ring groove 17, and the limiting ring groove 17 is coaxial with installation through -hole 12 and is connected.

[0054] By setting limiting ring groove 17, the butt joint with the mechanical seal can be completed, the positioning effect is achieved, and the stability of the mechanical seal installation is improved.

[0055] In some embodiments, as shown in Figure 2 And Figure 4 The end surface of boss 11 is provided with a plurality of thread holes 18 arranged around installation through -hole 12.

[0056] By setting thread hole 18, the mechanical seal can be installed on the end surface of boss 11 by bolt connection, which improves the assembly efficiency and ensures the installation stability.

[0057] In some embodiments, as shown in Figure 2As shown, the main body 1 is provided with a material reducing ring groove 19 outside the outer periphery of the boss 11, which can reduce the material usage and the production cost while ensuring the structural strength.

[0058] In some embodiments, as Figure 2 As shown, the main body 1 is provided with a butt ring 110 on the outer periphery, and a plurality of bolt through holes 111 are formed on the butt ring 110.

[0059] Through the above arrangement, the main body 1 and the pump body are conveniently installed and fixed, have the advantages of stable connection, convenient disassembly and assembly, and easy processing, and have good use effect.

[0060] The application further discloses a hot water circulating pump comprising the pump cover.

[0061] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of the specification.

[0062] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0063] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model, and they should be covered in the scope of the claims and the specification of the utility model.

Claims

1. A pump cover characterized by, The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof.

2. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

3. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

4. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

5. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

6. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

7. The pump cover of claim 1, wherein The utility model discloses a pump cover and a support block thereof.

8. A hot water circulating pump characterized by The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block thereof. The utility model discloses a pump cover and a support block

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